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exhaust valve head

См. также в других словарях:

  • exhaust valve — [1] The valve through which the burned fuel charge passes on its way from the cylinder to the exhaust manifold. It is driven by the camshaft. When comparing an exhaust valve with an intake valve in the same engine, the part of the exhaust valve… …   Dictionary of automotive terms

  • five-valve head — A cylinder head which has five valves per cylinder, usually three intake valves and two exhaust valves …   Dictionary of automotive terms

  • Valve guide — In most types of reciprocating engines, a valve guide is provided for each poppet valve in the cylinder head. Along with the valve spring, it serves to positively locate the valve so that it may make proper contact with the valve seat. A valve… …   Wikipedia

  • valve — A device used to either open or close an opening to allow or prevent the flow of a liquid or gas from one place to another. There are many different types. See ABS relay valve accumultor valve air valve carburetor air control valve air gulp valve …   Dictionary of automotive terms

  • Valve seat — The valve seat in an internal combustion gasoline or diesel engine is the surface against which an intake or an exhaust valve rests during the portion of the engine operating cycle when that valve is closed. The valve seat is a critical component …   Wikipedia

  • head — [1] The upper part of something. [2] A term used to express the increase of energy content in a fluid pumped, expressed in units of energy per unit of mass, usually simply ft (feet). [3] A part of the engine which covers the piston and creates… …   Dictionary of automotive terms

  • exhaust port — [1] The passage in the cylinder head which connects the exhaust valve and the exhaust manifold. The exhaust gases pass through the port to the exhaust manifold or header. [2] On two stroke engines the exhaust port is cut into the cylinder wall… …   Dictionary of automotive terms

  • Exhaust gas recirculation — (EGR) is a nitrogen oxide (NOx) emissions reduction technique used in most gasoline and diesel engines.EGR works by recirculating a portion of an engine s exhaust gas back to the engine cylinders. Intermixing the incoming air with recirculated… …   Wikipedia

  • valve-in-head engine — [valv′in hed′] n. a type of internal combustion engine, as in many automobiles, having the intake and exhaust valves in the cylinder head instead of the block …   English World dictionary

  • valve-in-headengine — valve in head engine (vălvʹĭn hĕdʹ) n. An internal combustion engine, as in some automobiles, that has the inlet and exhaust valves in the cylinder head instead of in the engine block. * * * …   Universalium

  • Valve — This article is about the flow control device. For the game developer, see Valve Corporation. For the electronic component, see Vacuum tube. For other uses, see Valve (disambiguation). These water valves are operated by handles. A valve is a… …   Wikipedia

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