positive displacement compressor


positive displacement compressor
A pump which provides a measured amount of gas or liquid per stroke or cycle and requires some form of mechanical drive arrangement, usually a belt drive from the crankshaft; typical positive displacement compressors are piston compressors, roots compressors and vane-type compressors

Dictionary of automotive terms. 2015.

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  • displacement compressor — See positive displacement compressor …   Dictionary of automotive terms

  • compressor — [1] A mechanism in a refrigerator or air conditioner that pumpsvaporizedrefrigerant out of the evaporator, compresses it to a relatively high pressure and then delivers it to the condenser. [2] A tool for compressing a coil spring, such as a… …   Dictionary of automotive terms

  • displacement — The total volume of air displaced by all the pistons in travelling from BDC to TDC, i.e., the total volume of air and fuel the cylinder can hold before compression occurs. Also called piston displacement. Also see cubic inch displacement engine… …   Dictionary of automotive terms

  • compressor — /keuhm pres euhr/, n. 1. a person or thing that compresses. 2. Anat. a muscle that compresses some part of the body. 3. Surg. an instrument for compressing a part of the body. 4. a pump or other machine for reducing volume and increasing pressure …   Universalium

  • Centrifugal compressor — Centrifugal compressors, sometimes termed radial compressors, are a sub class of dynamic axisymmetric work absorbing turbomachinery.[1] Centrifugal impeller with a highly polished surface likely to improve performance …   Wikipedia

  • reciprocating compressor — [1] A positive displacement compressor with pistons that move back and forth in cylinders; rarely used for supercharging, more frequently used for air conditioning [2] Compressor which uses a piston and cylinder mechanism to provide pumping… …   Dictionary of automotive terms

  • Roots compressor — A typical lobe type positive displacement compressor; uses two two lobed or three lobed internal rotors phased to prevent clashing of the lobes by gears; normally driven from the crankshaft by toothed or V belts, can achieve speeds up to 10,000… …   Dictionary of automotive terms

  • Gas compressor — A gas compressor is a mechanical device that increases the pressure of a gas by reducing its volume. Compressors are similar to pumps: both increase the pressure on a fluid and both can transport the fluid through a pipe. As gases are… …   Wikipedia

  • Rotary screw compressor — A rotary screw compressor is a type of gas compressor which uses a rotary type positive displacement mechanism. The mechanism for gas compression utilises either a single screw element or two counter rotating intermeshed helical screw elements… …   Wikipedia

  • компрессор — 3.1 компрессор: Машина для сжатия воздуха. Источник …   Словарь-справочник терминов нормативно-технической документации


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