14-09-2017, 01:22 PM
A pneumatic motor (air motor) or a compressed air motor is a type of motor that performs mechanical work by expanding the compressed air. Pneumatic motors generally convert the energy of compressed air into mechanical work through linear or rotary motion. The linear motion may come from a diaphragm or piston actuator, while the rotary motion is supplied by a lever type air motor, piston air motor, air turbine or gear type motor.
Pneumatic motors have existed in many forms over the past two centuries, varying in size from handheld engines to motors up to several hundred horsepower. Some types depend on pistons and cylinders; others in grooved rotors with pallets and others use turbines. Many compressed air engines improve their performance by heating incoming air or the engine itself. Pneumatic motors have found great success in the hand tool industry, but they are also used stationary in a wide range of industrial applications. Continued attempts are being made to expand its use to the transportation industry. However, pneumatic motors must overcome inefficiencies before being viewed as a viable option in the transportation industry.
Application
A widespread application of pneumatic motors is in hand tools, impact wrenches, wrist tools, screwdrivers, nut crowns, drills, grinders, sanders and so on. Pneumatic motors are also used stationary in a wide range of industrial applications. Although the overall energy efficiency of pneumatic tools is low and require access to a source of compressed air, there are several advantages over power tools. They offer a higher power density (a smaller pneumatic motor can provide the same amount of power as a larger electric motor), do not require an auxiliary speed controller (which adds to its compactness), generate less heat and can be used in atmospheres more volatile since they do not require electrical energy and do not generate sparks. They can be charged to stop with the full pair without damage.
Historically, many people have tried to apply pneumatic engines to the transportation industry. Guy Negre, CEO and founder of Zero Pollution Motors, has been a pioneer in this field since the late 1980s. Recently Engineair has also developed a rotary engine for use in automobiles. Engineair places the engine immediately next to the wheel of the vehicle and does not use intermediate parts to transmit the movement, which means that almost all the energy of the motor is used to turn the wheel.
Pneumatic motors have existed in many forms over the past two centuries, varying in size from handheld engines to motors up to several hundred horsepower. Some types depend on pistons and cylinders; others in grooved rotors with pallets and others use turbines. Many compressed air engines improve their performance by heating incoming air or the engine itself. Pneumatic motors have found great success in the hand tool industry, but they are also used stationary in a wide range of industrial applications. Continued attempts are being made to expand its use to the transportation industry. However, pneumatic motors must overcome inefficiencies before being viewed as a viable option in the transportation industry.
Application
A widespread application of pneumatic motors is in hand tools, impact wrenches, wrist tools, screwdrivers, nut crowns, drills, grinders, sanders and so on. Pneumatic motors are also used stationary in a wide range of industrial applications. Although the overall energy efficiency of pneumatic tools is low and require access to a source of compressed air, there are several advantages over power tools. They offer a higher power density (a smaller pneumatic motor can provide the same amount of power as a larger electric motor), do not require an auxiliary speed controller (which adds to its compactness), generate less heat and can be used in atmospheres more volatile since they do not require electrical energy and do not generate sparks. They can be charged to stop with the full pair without damage.
Historically, many people have tried to apply pneumatic engines to the transportation industry. Guy Negre, CEO and founder of Zero Pollution Motors, has been a pioneer in this field since the late 1980s. Recently Engineair has also developed a rotary engine for use in automobiles. Engineair places the engine immediately next to the wheel of the vehicle and does not use intermediate parts to transmit the movement, which means that almost all the energy of the motor is used to turn the wheel.