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During the RACE Project from 1994 to 1997, financed by the EU with nearly 2 Million Euros, main producers of cars agreed to develop CO 2 car AC systems. See . The result was that car AC systems for CO 2 small cars are 45% more expensive than HFKW Units and that for the luxury class the additional cost was irrelevant. There is a final ...
A scroll compressor (also called spiral compressor, scroll pump and scroll vacuum pump) is a device for compressing air or refrigerant. [1] It is used in air conditioning equipment, as an automobile supercharger (where it is known as a scroll-type supercharger ) and as a vacuum pump .
The sound produced by compressor surge is called turbo flutter and the repeated, high speed cycling will cause a cyclic torque on the compressor and may lead to increased stresses on the bearings and compressor impeller. [2] A blowoff valve is designed to release pressure in the intake system when the throttle is closed.
Air is also supplied to individual gasper vents. [a] A revolving control on the vent can be turned to adjust ventilation between no air output at all and a fairly substantial breeze. Gasper vent over passenger seats of a Boeing 737-800. Gaspers [a] usually receive their air from the AC PACKs aboard the aircraft, which in turn receive compressed ...
An idle air control actuator or idle air control valve (IAC actuator/valve) is a device commonly used in fuel-injected vehicles to control the engine's idling rotational speed . [1] In carburetted vehicles a similar device known as an idle speed control actuator is used.
An air-operated valve, also known as a pneumatic valve, is a type of power-operated pipe valve that uses air pressure to perform a function similar to a solenoid. As air pressure is increased, the compressed air starts to push against the piston or diaphragm walls which causes the valve to actuate.
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A representative pressure–volume diagram for a refrigeration cycle. Vapour-compression refrigeration or vapor-compression refrigeration system (VCRS), [1] in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air conditioning of buildings and automobiles.