crankcase valve

См. также в других словарях:

• Crankcase ventilation system — A crankcase ventilation system is a way for gases to escape in a controlled manner from the crankcase of an internal combustion engine. A common type of such system is a positive crankcase ventilation (PCV) system, the heart of which is a PCV… …   Wikipedia

• Crankcase — For other uses, see Crankcase (disambiguation). De Dion Bouton engine from about 1905, in which can clearly be seen a discrete crankcase with upper and lower halves (each a casting), with the bottom half constituting both part of the main bearing …   Wikipedia

• Crankcase heater — A crankcase heater is an electrical component in a compressor in an air conditioning system, heat pump system, or a chiller system. The crankcase heater is normally ON all the time even when the unit is not running, though temperature sensors and …   Wikipedia

• PCV valve — The Positive Crankcase Ventilation valve, or PCV valve, is a one way valve that ensures continual evacuation of gases from inside a gasoline internal combustion engine s crankcase.ExplanationAs an engine runs, gases and combustion pressure are… …   Wikipedia

• reed valve — [1] A one way valve used in a two cycle engine. It is made of a flat strip of metal that lies on the floor of the crankcase over a hole connected to the carburetor. As the piston moves up, the vacuum developed in the crankcase lifts the reed… …   Dictionary of automotive terms

• 2-stroke power valve system — The 2 stroke power valve system is an improvement to a conventional two stroke engine that gives a high power output over a wider RPM range. Operation of a two stroke engine A stroke is the action of a piston travelling the full length of its… …   Wikipedia

• Poppet valve — A poppet valve is a valve consisting of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. The shaft guides the plug portion by sliding through a valve guide. In most… …   Wikipedia

• Reed valve — Reed valves restrict flow of gases to a single direction and consist of thin flexible metal or fiberglass strips fixed on one end that open and close upon changing pressures across opposite sides of the valve. They operate in a similar manner to… …   Wikipedia

• PCV valve — ¦pē(ˌ)sēˈvē noun Etymology: positive crankcase ventilation : an automotive emission control valve that recirculates gases (as from blow by) through the combustion chambers to permit more complete combustion * * * Auto. a valve used to control and …   Useful english dictionary

• positive crankcase ventilation valve — (PCVV) a one way valve which controls the flow of vapors from the crankcase into the engine …   Dictionary of automotive terms

• PCV valve — (PCVV)Part of the positive crankcase ventilation system, which reroutes crankcase blowby to the intake manifold and back to the engine, where it is reburned in the cylinders as part of the fuel air mixture. This cuts emission pollution and… …   Dictionary of automotive terms