cylinder compression

См. также в других словарях:

• compression rings — The top rings used on reciprocating engines’ pistons. They seal the cylinder, so that an upward moving piston can compress the air into the cylinder. Compression rings also transfer heat from the piston to the cylinder wall …   Aviation dictionary

• Compression (physical) — Compression test on a universal testing machine Physical compression is the result of the subjection of a material to compressive stress, which results in reduction of volume as compared to an uncompressed but otherwise identical state. The… …   Wikipedia

• compression-ignition engine — noun An internal combustion engine in which ignition of the liquid fuel injected into the cylinder is performed by the heat of compression of the air charge • • • Main Entry: ↑compress …   Useful english dictionary

• compression ratio — n. in an internal combustion engine, the ratio of the largest volume to the smallest volume of a cylinder, measured before and after the compressing action of the piston …   English World dictionary

• Compression ratio — For compression ratio in data compression, see data compression ratio. The compression ratio of an internal combustion engine or external combustion engine is a value that represents the ratio of the volume of its combustion chamber from its… …   Wikipedia

• Cylinder (engine) — Illustration of an engine cylinder with a cross section view of the piston, connecting rod, valves and spark plug. A cylinder is the central working part of a reciprocating engine or pump, the space in which a piston travels. Multiple cylinders… …   Wikipedia

• compression ratio — Auto. the ratio of the cylinder volume enclosed by the piston at its outermost position to the volume enclosed by it at its innermost position. [1905 10] * * * Degree to which the fuel mixture in an internal combustion engine is compressed before …   Universalium

• Compression release engine brake — Jacobs Engine Brake Division logo. A vie …   Wikipedia

• Cylinder head — A 302/5.0L Ford cylinder head In an internal combustion engine, the cylinder head (often informally abbreviated to just head) sits above the cylinders on top of the cylinder block. It closes in the top of the cylinder, forming the combustion… …   Wikipedia

• compression ratio — [1] When the piston is at the bottom of its travel (BDC), the volume of cylinder is measured (suppose the volume is X). Then the piston is placed at the top of its travel (TDC) and the volume of the cylinder is measured (suppose this volume is Y) …   Dictionary of automotive terms

• compression ring — A ring which surrounds the piston and fits in a grove in the piston. It is designed to seal the burning fuel charge above the piston. Generally there are two compression rings per piston and they are located in the two top ring grooves. They also …   Dictionary of automotive terms