Showing posts with label electric actuators. Show all posts
Showing posts with label electric actuators. Show all posts

Thursday, April 19, 2012

Employing The Methods Of Linear Actuators For Business Evolution

There are innumerable organizations that have been realizing the miscellaneous practices of linear actuators so that they can outshine their contenders.

What is a linear actuator? What are its assorted aspects and pluses?

There can be numerous responses to the above stated questions but those who have been dynamically practicing the procedures of such pliable devices would be well-versed with the basic facts of linear actuators. In fact, they are so flexible and adaptable that none of the organizations can ponder over to survive the global race without their reliable use. It would not be void to say that every conglomerate is on the run to prove its worth as there exists an abrupt competition among the vertical segments. The indispensable use of such bendable mechanisms has paved the right path for any specific business to nurture and provides a prospect to attain a viable over its contenders. There are various types of actuators that are available in the global market and on which you can get a hands-on knowledge and they are easily accessible in today's cut-throat market.

An actuator is one of the most admirable tools that have become an obligatory need for almost every industry because of the reason they are pliable and user-friendly. The role of such a device comes into play when there is a need to maneuver a structure or a mechanism. In fact, there are diverse methods available to us that we can use in order to monitor the movement of such a crucial tool like pneumatic pressure or hydraulic fluid pressure so on and so forth. Then they transform the energy into some kind of motion.

There are heterogeneous types of actuators that create their own presence felt among the challengers and vigorously help the organizations to climb the ladder of success in the shortest possible time. To commence with, if we throw some light on the diverse facets of "mechanical actuators", you would get to know how crucial they are for a specific business to be judicious in the longer run. The role of such gadgets is to transform the rotary motion of a control knob or handle into linear transposition with the help of gears and/or screws to which the knob is fastened. A very familiar example of mechanical actuator is car-jack or jack-screw. Nonetheless, "hydraulic actuators, pneumatic actuators, piezoelectric actuators and electro-mechanical actuators" are some of the most prominent actuators that have made their mark in almost every field and other purposes.


Progressive Automations is a North American linear actuators producer and wholesaler that offers a wide range of actuators, linear actuators, DC actuators, etc. on its online store.

Wednesday, April 18, 2012

Ensuring Performance of Electric Linear Actuators

Electric actuators come with benefits like simple to use and offer more energy-efficient power transmission. This may not surprise you to hear that the actuators are found in commercial kitchen equipment, high-voltage switch gears, agriculture machinery, train doors, bus doors and also in medical machinery.

Adding to it, areas where compactness, safety, comfort and low noise are the goals, electric linear actuators can be easily seen there. This article will deal why we need to go for reviewing of the products before the purchase? How it helps in ensuring the performance of such actuators in desired field?

Unique requirements
As discussed above that the actuators have been getting used in various industrial areas and this is the fact that each application has specific and unique requirements. This is the reason why we need to check the performance and features of product before the purchase.

System's design
Actuators meant for different applications are manufactured by considering the needs and purpose of systems in the particular field. It can also be said that the design and manufacturing process varies from application to application. Thus, considering unique requirements, checking design of the systems will help a lot to decide whether the system is worth to purchase for the application or not.

Key parameters
There are certain key parameters to select the actuation system. Such parameters ultimately play an effective role in ensuring the system operation. So, along with system design, necessary capabilities are also required to be verified before taking final decision of the purchase.

Essential qualities
Whatever be the size of electric linear actuators is, they all are designed and manufactured to offer features like precision, accuracy, efficiency and controlling movement capabilities. Being considered as advanced technology based and maintenance-free alternatives to pneumatic actuation systems, electric actuators serve practically and efficiently all over.

Load, speed and strokes
As per the application, the actuators come with different speed; strokes and capacity to bear load.Modern actuators come with the capacity to handle the load of about 3000 pounds and speed up to 6 inches/second. As far as strokes are concerned, one will find the actuators working with strokes from 2 inches to 60 inches.

Standard components
There are certain standard components of electric actuation systems which one is required to check. Such components include drive screws, front and rear attachments, motors, controls and limit switches. For better results, one can also go for the customization of products. A number of knowledgeable and experienced actuation system suppliers are present in the market to serve us in this regard.

Hence, from the above discussions, it can be said that after checking these aspects, one will be able to get high performance based electric linear actuators.


Progressive Automations are the manufacturer and distributor of a diverse range of electric linear actuators in the US and Canadian region.

Saturday, April 14, 2012

How Are Electric Linear Actuators Better Than Manual Actuators?

Many of us take linear actuators to be a synonym for electric actuators or dc motors. But in reality, any device or equipment assisting in the linear motion is called a linear actuator. Linear actuators are widely used in industrial settings and various mechanical systems such as hospital desks, office desks, adjustable levers etc.

But what is important to understand is that there are two types of the linear form of actuators: Manual and Electric. The manual form of actuators help in initiating a linear motion or in its assistance with the effort of the user or manual force; whereas, electric forms are automatic or semi-automatic and do not require any manual assistance. Electric actuators help in reducing the effort required in manual actuators and also perform the task more efficiently.

The electric actuators are the common actuators in use in the industrial sectors. Most industrial application are dependent on electric actuators that have a DC motor that is required to use the electrical energy and convert the same into linear motion energy. They are ideal for lifting light loads and function in tandem with the use of lifting columns, switches, brackets etc. In most industrial set ups and application systems, electric form of actuators are preferred over their manual counterparts, let's find out why and in what respect:

Reduces manual effort
The use of the electric form of actuators reduces manual effort to a considerable extent. One is not required to use extra effort in terms of operating a system or machinery that has actuators operational on electric DC motors. The use of the 12v DC motor in the actuator helps in the conversion of electrical energy into linear motion; hence, reducing the force or strain required to make that motion possible.

Better position control
The use of electric motors in actuators helps in having a better control of position in a mechanical or electrical industrial system. Most linear form of actuators working on electrical mechanism using 12V DC motors, help in easier position control than their manual counterpart. These actuators are available in different strokes as well as different sizes. There is difference in the force applied as well as the size.

Versatile and flexible
Most electric actuators find usage in different types of industrial as well as routine life usage. They may not be as common as the manual form of actuator; however, electric linear actuators are used by different industries and profession in order to improve their efficiency and performance. The properties such as high performance and time-saving aspect of these actuators make them an industry favorite for production and different industrial mechanisms.

Progressive Automations is a North American linear actuators manufacturer and distributor offering a wide range of electric linear actuators, DC actuators, lifting columns etc on its wholesale online store.

Thursday, December 23, 2010

Elctric Acuator: Engine Control Unit Tuning With the Unichip Q

The current Multiport Fuel Injection System is made up of electrical sensors which detect the particular engine conditions, the Powertrain Control Module (PCM) which controls the fuel injection system based on return signals from these electrical feedback sensors, as well as electrical actuators which operate under the control of the actual Powertrain Control Module (PCM).

The ECU (aka the Blackbox) carries out activities such as fuel injection control, idle air control, and spark ignition control.

In addition, the PCM is equipped with a number of diagnostic test settings which simplify trouble shooting when a new OBD2 trouble code develops.

The two most common calibration which a person require to manipulate or adjust is without question the timing as well as feul

Ignition timing control
The ignition igniter module located in the ignition primary circuit pulse ON and OFF to control the actual main current flow to the particular high voltage igntion coil. This method controls the ignition timing to supply the optimal ignition timing with regard to the engine performing conditions. The actual spark ignition is decided on by the ECU (Engine Computer) through engine speed, air intake, engine temperature (ECT), coupled with atmospheric pressure.

fuel injection management
The injector on milliseconds (MS) along with injector timing are controlled so that the the best air/fuel mixture is provided to the engine to correspond to the continually-changing engine operating conditions. A correctly sized fuel injector is positioned at the intake port of each cylinder. Gasoline is delivered using pressure from the gas tank towards the fuel injectors through the fuel pump, with the actual pressure being regulated by means of the fuel pressure regulater at around 55 psi. The controlled fuel is then distributed evenly to each one of the injectors. Sequential fuel injection is normally completed once for each cylinder for every 2 revolutions of the crankshaft. On a four cylindr motor the actual firing order is 1-3-4-2. Each cylinder will have a dedicated gasoline injector. This is known as multiport injection. The ECU provides a richer air/fuel mixture by carrying out “open-loop” control when the engine is cold or operating under high load conditions in order to maintain engine performance.In addition, when the engine is under normal operating temperature after warming-up, the ECM (aka The Blackbox) manages the air/fuel mixture using the heated oxygen sensor signal to execute “closed-loop” management. The closed-loop control defines the Stoichiometric Air-fuel mixture ratio where the catalytic converter can obtain the highest cleaning efficiency.

With the Unichip (Q version) you have complete control over all these parameters in order to make changes to the timing and fuel tables. The Unichip (Q version) has 24 RPM sites between 100 RPM and 24000 RPM and 13 load sites between closed throttle full throttle position. This equates to 312 practical adjustments for each map. In turn the Unichip Computer is going to interpolate in between each speed and load site sixteen times which gives a decent resolution densed map.

UniQ is Unichips most recently released computer software for tuning engine ECU’s. This software program is a revolutionary change from old style DOS software program that had been in operation for more than ten years. Take the Unichip (new version) Tuning software for a test drive and see for youself.

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Free Unichip Tuning Software available now.
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Tuesday, December 21, 2010

Electric Actuator

Actuators are used for the automation of industrial valves and can be used in all kinds of technical process plants such as wastewater treatment plants, power plants and even refineries. The valves to be automated vary both in design and dimension. The diameters of the valves range from a few inches to a few meters. Multi-turn actuators are required for the automation of multi-turn valves. One of the major representatives of this type is the gate valve. "A multi-turn actuator is an actuator which transmits to the valve a torque for at least one full revolution. It is capable of withstanding thrust."

Part-turn actuators are required for the automation of part-turn valves. Major representatives of this type are butterfly valves and ball valves. "A part-turn actuator is an actuator which transmits a torque to the valve for less than one full revolution. It need not be capable of withstanding thrust."

Currently there is no international standard describing linear actuators or linear thrust units. A typical representative of the valves to be automated is the control valve. Just like the plug in the bathtub is pressed into the drain, the plug is pressed into the plug seat by a stroke movement. The pressure of the medium acts upon the plug while the thrust unit has to provide the same amount of thrust to be able to hold and move the plug against this pressure. Most of the linear actuators used are pneumatic diaphragm actuators. They are characterized by a simple design principle and are therefore cost-effective. A compressed air supply is a prerequisite for their use. In case this is not possible, the use of thrust units is recommended which can easily be supplied with power.

Small electric actuators can be used in a wide variety of assembly, packaging and testing applications. Such actuators can be linear, rotary, or a combination of the two, and can be combined to perform work in three dimensions. Such actuators are often used to replace pneumatic cylinders.

Saturday, December 18, 2010

Electric Aqtuators: 10 000 Information Among The "national High

By: dfjyj

Process Automation Instrumentation As a leading provider of new technology, News Controls Co., Ltd. Shenzhen million before the formal adoption of "National High-tech Enterprise" rating finds that China's process automation industry, a handful of national high-tech enterprises. This is the million hearing following the high-tech enterprises in Shenzhen City, well-known brands, the best employer enterprises, businesses, and many hundred instrument industry after winning yet another honor.

    The 10,000 high-tech enterprises through the national telecommunications company found that the State governments at all levels of thousands of telecommunications research capacity, the overall technological level and innovation capability of full recognition, marking 10 000 News is a comprehensive strength and strong core competitiveness of the market high Technology companies can automate the process of industrial development in China play a more important task.

    Identification of the national high-tech enterprise approved and promulgated in accordance with the State Department's "high-tech enterprise certification Regulations" provisions of the. From 2008 onwards, the national high-tech enterprise certification conditions significantly improved, in the original enterprise management, technology transformation ability, annual sales income rigid evaluation indexes, it added Le enterprises have intellectual property rights and increasing R & D and other indicators emphasize high-tech companies must focus on support at the national high-tech areas, ongoing research and development and technological achievements, the formation of core intellectual property, building capacity for independent innovation. In this way, the national high-tech venture capital companies may be more severe, more difficult high. It is understood that, in accordance with relevant state regulations, state high-tech enterprises may enjoy relevant preferential tax breaks, the project can be obtained for the priority.

    Process Automation Instrumentation As a leading provider of new technology, 10000 information technology company with many years of accumulation and strong R & D capabilities in the industry achieved great development, made a series of remarkable achievements have been creative in the petrochemical, chemical, metallurgy, steel, electricity, building materials, municipal and other industries supported by the state market, created many classic benchmarking process automation projects has become China's leading process automation companies. 10 000 Telecommunications company always adhere to the "new world technology to share with you the outcome of" business philosophy, to introduce the latest international advanced technology and products will be the height of the development of corporate strategy, has collaborated with the German PS, Austria Schiebel, USA, Germany and the United States, Switzerland WEKA, of Cisco and other well-known multinational companies in Germany conducted foreign cooperation, the introduction of many new technologies, new achievements and service process automation market in China, such as the leader in intelligent electric actuators Aesthetic Schiebel (Sibelius) "heavy-based intelligent electric actuator," China's "integrated electric actuator," a synonym for PS called electric actuator, to create a water flow measurement accuracy of the Chinese historical precedent for the lack of delta flow meter, synchronized with the line flow meters, etc. Deertaba purge function. In addition, the 10000 information companies adhere to the independent innovation and brand development path of diversification, the latest technology into new areas of self-control results, achieved remarkable success and self-development of the smart valve positioner is the first patent with mine Technology locator; Fence, Safety Barrier and other products have their own core proprietary technology is also a function of China's first patent with lightning signal conditioning device; Shi Fuller Maisuonike control valve to professional, the quality has been chemical in Europe and so widely popular, the sales of own brand products gradually increased each year, widely praised by the market. Furthermore, 10,000 self-developed telecommunications company's products have reached more than a dozen patents, the industry one of the largest number of patents.

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Friday, December 17, 2010

Electrik Actuators: Solenoid Valve role of the working princple and the reality

By: zll10417

Solenoid Valve works by love by the rotary valve to the valve flow or occlusion. Solenoid Valve switch light, small size, can be made into a large-caliber, reliable sealing, simple structure, easy maintenance, regular spherical surface and seal in the closed state, the media can not easily be eroded, in the various sectors has been widely used.

Solenoid Valve classified into two categories, one floating ball, the second is a fixed ball.

    Solenoid Valve in the wider application of irrigation systems, mainly used in the branch entrance. Solenoid Valve simple structure, small size, the resistance of water is also small, the disadvantage is turned on or off too quickly, it will produce water hammer in pipes (sudden changes in flow velocity in the pipe when the pressure will rise.) Therefore, should not be used in the main pipe on the Solenoid Valve, used in the dry, branch pipe for wash-on or end use, wash the sewage effect.

  Solenoid Valve Solenoid Valve with Coach Bags O-and V-Solenoid Valve of the points. Solenoid Valve O-floating structure, the ball cores for precision casting, surface hard chrome plated, seat materials with PTFE, the same stream crossings and pipeline diameter, flow capacity, great, flow resistance is extremely small, closed no leakage, generally do switch valve, especially for high viscosity, fibrous, granular media; V-type Solenoid Valve with fixed structure, the ball pin on the opening V-notch can be adjusted to achieve scale, flow characteristics are similar to percentage.

Process equipment according to the different choice of pneumatic or electric actuators, pneumatic components, respectively, and electric Solenoid Valve Solenoid Valve, Pneumatic Solenoid Valve which such adjustment shall be allocated to achieve proportional valve positioner, electric Solenoid Valve To adjust the ratio to be selected to achieve electronic with electric actuator or servo Fiber Optic Splice Closure amplifier.

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Thursday, December 16, 2010

Electric Actuators: Nanjing Vietnam-US: continuous improvement, strong industry competitiveness - the better, thermostats, parts - heat pump industry



Nanjing, the more the United States Electric Co., Ltd. in the field of building control the pace of development increases, not only in the beginning of the second phase in 2007 Factory building Building, also added a number of offices across the country, and products are exported to Asia, Europe, Middle East and other parts of the world. But the play industry influence, while some of the more unscrupulous traders began to counterfeit trademark and beauty products, the company causing very bad influence, interfere with the market order. Recently, we interviewed the editor HC network the more the United States Electric Co., Ltd. Nanjing, Mr. Xu Jian, general manager, expressed his interview with Mr. Xu to the kind of "plagiarism" in condemnation.

More U.S. Electric Co., Ltd. Nanjing Mr. Xu Jian, General Manager

HC Network: We understand that your company started in early 2007 the construction of two plants now in what stage it? How to scale? Construction of new plants the company has what is the significance?

Xu key: Yes, our company began construction earlier this year from two plants, the Project Lake is located in Jiangning Development 100 Technology Industrial park, away from the Nanjing Subway One Line Southern Extension "100 Lake station" 900 m 2 factory covers an area of 20 mu, building area of 15,000 square meters, total 3 floors, each floor of 5,000 square meters, is now capped, into internal projects, expected to can be completed by the end of this year.

In the two plant construction, we added Mold Processing workshop, injection workshop, all kinds of simulated environmental test chamber and testing room. At the same time improving Electronic Shop, sheet metal shop, assembly shop of the production environment, and also to increase, expand, improve the Production Line And the production process.

With the completion of two plants, making our production scale will be among the forefront of the domestic industry, due to changes in the production environment will make our production efficiency, product quality up to a new level, and because of the convenient transportation for our the introduction of high-tech talent to join play a role.

HC network: Over the past few months your company has made remarkable achievements in what? You a brief introduction.

Xu key: remarkable achievements not as small a result. In the market, we have several offices in the original 20 based on the new office in Hangzhou, Hefei offices, while foreign trade has made relatively great progress, now our products are sold to Europe, the Americas , Middle East, Africa, Asia, parts of the world, also has a stable foreign trade Cooperation Partners, and for the number of foreign trade to develop, customize a number of products.

In addition, the technical side we put a lot of manpower, material and financial resources to carry out research and development of new products, mainly in electric actuators, our goal is: to achieve domestic building automation electric actuator products " The first scale, variety and quality first. " We also had to upgrade existing products, improved product stability and quality.

With domestic Energy Emission reduction policy, we cooperate in the project also a breakthrough. Our products combine the characteristics of our company carried out with the Shenzhen EMC energy contract Management Cooperation projects, mainly focused on large-scale comprehensive energy efficiency of buildings cooperation.

HC Network: We know that your company always takes the high quality products, but more and more products, the community, while there are unscrupulous businessmen praise starting "phony" things, please briefly describe to us to be find the causes and effects things? What are your views on this matter?

Hsu key: in the sales process, we sometimes find that without my permission, but the Secretary for the same structure with the appearance of my company's products in the market there, sometimes customers ask our sales staff, "Your products in the end is not your own production? "This is the image of our company had a very bad influence, here we solemnly declare: Our products have obtained design patents, are welcome to visit our guide.

Addition to products we have identified counterfeit goods, in terms of publicity recently discovered phenomenon of plagiarism. With our company within the same industry, Sirona Controls Equipment Co., Ltd. Xiamen City, in its publicly disseminated promotional materials listed in the 2007 model works, there is a model for my company's project rather than the model projects, Department of plagiarism Our model works publicity materials. As we all know, the product quality is constantly used in the process of gradual improvement, improved customer choice in many Project Of used products, but also for this reason. In order to allow customers to use reliable products, some companies deceive customers serious and affect the image of our company acts of false propaganda, I strongly protest against the Secretary, and we have already negotiated by its lawyers, our company will retain the relevant legal rights in order to protect domestic the brand image of industry.

Through this, we are committed to the industry, product development, improve product quality, enhance their competitive counterparts manufacturers to pay tribute only through legitimate competition, so that we can constantly improve themselves bigger and stronger, while China-made products for greater market share, the "Made in China" rise to a new level, and we despise some of short-term benefits obtained through improper means the manufacturers, so the competition can only make their increasingly narrow path, there we have to appeal to the majority of users, in Purchase To distinguish the authenticity of the time.

HC network: The company's focus will be on the next Where?

Xu key: we have always maintained that quality is the fundamental survival, development of enterprise development power, then the company's focus is quality control, quality sound system and new product development, improvements of old products. We hope: that through our efforts, so that Life More and more beautiful!

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Article Source: http://www.articlesbase.com/ - Nanjing Vietnam-US: continuous improvement, strong industry competitiveness - the better, thermostats, parts - heat pump industry

Sunday, December 12, 2010

Shanghai Fu by : Packaged into the international market - control valves, air conditioning, electric actuator - HVAC Industry

By: mumu

Shanghai Fu for Fluid Power Equipment Co., although the age is a very young company, but its predecessor was once a well-known companies on the Haitai Kelon. Xu Fu in 2006 because of general manager with the valve in the field of automatic control and the successful experience and career confidence Cooperation Haitai Kelon received and Taiwan in the past on your dragon electric valve company Actuator , Control valves, etc.. To win the face price-controlled domestic equipment market, Fu because of faltering, but the total Xu and colleagues still insist on the company's excellent product worked hard market, and plans to the international market! Not long ago, HC network had the honor to interview the editor of Shanghai Fu, General Manager Mr. Xu Guofeng result, let us hear about us personally Xu Fu total for the origin and development goals.

Shanghai Fu General Manager Mr. Xu Guofeng by

HC Network: Xu General Hello! Please briefly explain your situation.

Xu Guofeng: Our company is 100% of the production companies, mainly engaged in electric actuators, and HVAC control valves and components production. Produced by electric actuator, control panel (device), and temperature / pressure Sensor With all kinds of electric control valves, can be widely used in automation and HVAC systems a single and centralized computer control.

2006, the company received the Haitai Kelon (TYCO), and Taiwan in the past your dragon's electric valve actuators and HVAC related electric control valve component products, related products since 1997 have large products in domestic and international use, product performance and stability. Currently the management of our company are long past your valve company in Taiwan specialized managers.

Order to enhance product stability, the electronic components have passed strict Taiwan EMI / EMC immunity testing, and have obtained CE certification ( : LC070619-63-LVD, LC070619-63-EMC, LC070619- 62-LVD, LC070619-62-EMC), thus greatly improving product stability.

Through the first of ERP / MRP software and e-ISO9001 (BSI : FM522775) quality assurance system, efficient management of company resources, customer-oriented R & D innovation for the purpose and policy to achieve domestic and international customers to provide satisfactory products and services goals.

HC Network: What company out of consideration received on the Haitai Ke and Taiwan in the past your dragon Valve Company products?

Xu Guofeng: So, I am in Taiwan to engage the valve of your long work (93-03 years), and then merge your dragon to Tyco, and then I went on to follow with Tyco (03 this year), and Tyco in the valve aspect is a strength in the industry have no small reputation. I have been engaged in the work of the valve, a better understanding of this industry, so in 2006 on the acquisition of two electric actuators, controllers and valves and other products. Now, although the product's name changed, but the quality of products and technologies will not worse than the original, please be assured of our customers.

HC Network: We see your company's main product is electric actuators and air-conditioning, please introduce us.

Xu Guofeng: Our main products are two series, one is the electric control valve, which includes Butterfly , Ball , Gate valve and other major applications in civil construction, water companies, power plants and other places. Another series

HVAC control valves, which includes the HVAC terminal equipment, Fan Coil Unit With a temperature control valve and the panel, wind cabinet, pressure balance valve and so on. Mainly used for air conditioning, hotels, restaurants, hospitals and other places.

We also carried out market research, although the price of our products in the market is relatively high, but our costs are high. We are a professional valve manufacturers have done, started from 97 years of research and production of valves, so we know how well their products. Currently we are studying the new product, but also expect it to have a good market performance.

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Article Source: http://www.articlesbase.com/ - Shanghai Fu by: Packaged into the international market - control valves, air conditioning, electric actuator - HVAC Industry

Saturday, December 11, 2010

Electric Actuator

By: varalakshmi

Actuators are used for the automation of industrial valves and can be used in all kinds of technical process plants such as wastewater treatment plants, power plants and even refineries. The valves to be automated vary both in design and dimension. The diameters of the valves range from a few inches to a few meters.

Multi-turn actuators are required for the automation of multi-turn valves. One of the major representatives of this type is the gate valve. "A multi-turn actuator is an actuator which transmits to the valve a torque for at least one full revolution. It is capable of withstanding thrust."

Part-turn actuators are required for the automation of part-turn valves. Major representatives of this type are butterfly valves and ball valves. "A part-turn actuator is an actuator which transmits a torque to the valve for less than one full revolution. It need not be capable of withstanding thrust."

Currently there is no international standard describing linear actuators or linear thrust units. A typical representative of the valves to be automated is the control valve. Just like the plug in the bathtub is pressed into the drain, the plug is pressed into the plug seat by a stroke movement. The pressure of the medium acts upon the plug while the thrust unit has to provide the same amount of thrust to be able to hold and move the plug against this pressure. Most of the linear actuators used are pneumatic diaphragm actuators. They are characterized by a simple design principle and are therefore cost-effective. A compressed air supply is a prerequisite for their use. In case this is not possible, the use of thrust units is recommended which can easily be supplied with power.

Small electric actuators can be used in a wide variety of assembly, packaging and testing applications. Such actuators can be linear, rotary, or a combination of the two, and can be combined to perform work in three dimensions. Such actuators are often used to replace pneumatic cylinders.

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Thursday, December 9, 2010

Electric actuators

By: Gareth Hoyle
Electric actuators have been with us for some time but what is the purpose of units such as this?

It's a good question and in many industries Electric actuators are used to control automation processes within industrial valves. Reliability is a key issue that has to be considered when you are choosing new Electric actuators.  Plenty of trust is placed in this item of equipment and quality has to be assured from leading stockists of products of this nature. Many units have to work in extreme conditions and they have to be waterproof as a result. The designs of actuators can incorporate anti-corrosive casings to help combat this problem.

What features can you find on Electric actuators?

This might vary depending on the make and model of the unit.  Some come with manual overrides and status lights, along with plug and play capabilities. One useful feature that does come in handy is an external wiring diagram and updated versions of Electric actuators often come with this as standard.  Engineers working on site should find the modern versions of Electric actuators easy to install compared to the units of old.

Different types of Electric actuators

A number of versions are available and two of the most common types are ball valve and butterfly Electric actuators. Within each sub-category further choices can be made in relation to the Electric actuators and it's possible to select 2 way and 3 way units to cater for a client's demands.  With so many variations of actuators on the market at the moment choice is never lacking.

Suppliers of Electric actuators

Are easy to come by and clients looking for replacement products, or new items that are ready for installation, can call on the experience and years of wisdom that tried and tested companies can provide. Technical product knowledge is often useful if you need new Electric actuators but expert advice can always be sought if you get stuck. Certain companies can proudly boast they have many years experience in the supply of Electric actuators. It's this kind of company that you should be looking for when you need new units.

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Monday, December 6, 2010

Electric Actuators: Diesel Engines and Generators. Innovative Genius

Diesel engines are the combined inventions of two specific inventors, Rudolph Diesel and Herbert Akroyd Stuart. The internal engine is strictly from Diesel and the injection system is derived from Stuart. Stuart is best known for his advances in solid injection. Solid injection is derived from compressing fuel to extremely high pressures by means of pumps. It is then forced under pressure through injectors into the combustion chamber. Diesel's original engine injected fuel by means of compressed air into the cylinder. The fuel was atomized and mixed with air and then injected. This was "air-blast" injection. The early models of diesel engines were extremely large and heavy due to the large compressors needed as part of its' fuel injection system. Naval diesels were so large that they needed separate engines just to compress the air required to power the diesels. During the earlier years, the use of diesel engines with automobiles was not feasible.

Today's diesel is a miracle of innovative genius. No longer is the engine serviced by a mechanical fuel pump but by ECM run fuel pumps, which service the individual injectors at the proper and accurate opening times. The distributor pump direct injection method was improved vastly by the Volkswagen Audi group in 1989. The genie in the bottle or the ECM (the electronic control module) made the injection timing, fuel measurement, exhaust recirculation and turbo boost precise and accurate. They provided the incentive for diesels to be marketed to the mass market. Consequently, Volkswagen began selling their Mark 3 Golf TDI very successfully. European automobile manufacturers build common rail direct injector diesel engines, a means where the distributor injection pump is deleted and a high-pressure reservoir stores the fuel at extremely high pressures. The computer-controlled injectors have a precision system actuated by solenoid or even piezo-electric actuators and are used to inject diesel fuel at the correct time. This high performance diesel engine is used primarily for racecars.

So why should someone buy a diesel? Diesel fuel is denser than gasoline by 15%. The diesel engine must be larger in order to put out the same power as a gasoline engine. The size of the diesel engine has with the assistance of turbo charging, precise timing and feed back allowed it to operate under pressures impossible with gasoline engines. This means a more efficient and powerful engine. Therefore, if you want a faster, more economical and environmentally safer automobile then choose a diesel.

If you are concerned about the diesel knock then a diesel rail injection system with a two-stage injection system can completely rid your vehicle of the dreaded diesel knock. In the department of emissions, diesel engines rate very environmentally friendly since they produce little to no carbon monoxide. The higher PM10 (or particulate matter greater than or equal to 10 microns) emission occurs when diesels are not equipped with diesel particulate filters. The other pollutant gases of sulfur and nitrogen oxides are eliminated by catalytic converter.

The diesel is renowned for the power and torque required for towing heavy loads. It is reliable and easier on engines to start than gasoline engines because there is less wear and tear due to the lower pressures. Last, a diesel offers many types of effective and inexpensive fuels such as the biodiesel fuels found in vegetable oils and used vegetable oils.

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John Stafford is the webmaster and a contributor for www.diesel-generator-central.com, www.car-accessory-central.com and www.diesel-performance-pros.com

Article Source: http://EzineArticles.com/?expert=Stafford_John

Electric Actuators: Car Heater Not Working - Blowing Cold Air!

There are several reasons why your car's heater may be blowing cold air, instead of heat. It is important to understand how the heater works in your car before you can begin to try to diagnose why it is not working. First, there is NOT an electric heater element in the heater system in automobiles, like in portable heaters used in the home. The part that transfers heat into the passenger compartment is called a heater core. A heater core can be thought of as a miniature radiator. The car engine's coolant flows through the heater core while the fan (also called a blower), blows air through the heater core fins. When air blows through the heater core fins, it is warmed, therefore warming the passenger compartment.

Start by checking the coolant. As we already said coolant is what warms the heater core. So if the coolant is low, there may not be a sufficient amount of warmth to transfer heat to the air in the passenger compartment. Since it 's cold outside, low coolant may not effect the operating temperature of the engine significantly, so you won't be alerted to a coolant problem by the temperature gage on the instrument panel. Once the coolant is full, feel the heater hoses that go through the firewall. With the engine at normal operating temperature, BOTH of the heater hoses should be hot to the touch. If only one is hot, this indicates there is is a blockage in the heater core or there is air trapped in the heater core. Using a Lisle coolant funnel is helpful in purging the air from the cooling system. If the coolant is really brown, has been neglected, or if "stop leak" has been used at some point, the heater core could be stopped up. The blockage can sometimes be unstopped by removing the heater hoses and using a garden hose with a sprayer to flush the heater core out. If neither of the hoses are hot to the touch, there could also be a malfunctioning heater control valve, if used on the model you're working on. Check for presence of a heater control valve by following the heater hoses back to the engine. Sometimes, a vacuum line could have a break causing there to be no vacuum to operate the valve. Also it should be noted that if this is your first winter with this car (and you're unfamiliar with the car's repair history), the previous owner could have by-passed the heater core because of a leak. When a heater core leaks, usually they wet the passenger side floorboard. The labor cost to change heater cores is usually expensive, so sometimes people will loop the heater hoses and by-pass a leaking heater core instead of repairing it properly.

Next check for proper airflow. After you're sure the heater core is getting hot water flow, read the following information. Doors within the heater case are either controlled by electric actuators, cables or vacuum motors. Adjust the heat control to both extremes while listening for movement of the blend door. With a cable operated heater door it's easiest to hear the door thump when it closes. If the door is not operating, find the door that controls the airflow across the heater core. If there is an electric motor that controls the door, tapping on it can sometimes make it work temporarily for testing purposes. A vacuum operated motor needs vacuum to work, so using a handheld vacuum pump for testing is usually recommended. If the vacuum motor does not hold vacuum, the diaphragm is leaking requiring replacement. To go deeper into diagnoses of the control head's function and diagnosis, specific vehicle repair manual information is needed. But hopefully the basics laid out in this article has helped to get you started on the right track.

About the Author. Hi I'm Dennis Bandy, thanks for reading about my background. I've been an ASE Master Auto Technician for over 23 years and have also sold professional auto tools since 2005. I am in a unique position to help readers on certain automotive repair related topics since I've had personal hands on experience with many auto repairs and automotive specialty tools. Let me just say, this is not a hobby for me, this is my business. Your feedback is really appreciated, if you thought this article was helpful or informative, please rate it below (thank you in advance).

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