head valve

См. также в других словарях:

• head valve — (MOLLUSCA: Polyplacophora) The anterior valve of chitons …   Dictionary of invertebrate zoology

• un|der|head valve — «UHN duhr HEHD», the intake or exhaust valve inside the cylinder of an L head engine …   Useful english dictionary

• 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

• Valve Records — is an Australian record label, releasing a wide range of alternative artists both local and international. The label was created by Paul Curtis in 1994 to support the local bands he was managing but the most successful band he managed,… …   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 port — valve port, the opening uncovered by a valve in the cylinder block or head of a gasoline engine …   Useful english dictionary

• 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 — 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

• 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

• Valve timing — In a piston engine, the valve timing is the precise timing of the opening and closing of the valves.In four stroke cycle engines and some two stroke cycle engines, the valve timing is controlled by the camshaft. It can be varied by modifying the… …   Wikipedia