top of piston

top of piston
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Краткий англо-русский словарь химмотологических терминов и выражений. - М.: ИЦ «ТЕХИНФОРМ» МАИ. . 2014.

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  • Top Fuel — Racing is a class of drag racing in which the cars are run on a maximum of 90% nitromethane and about 10% methanol (also known as racing alcohol), instead of gasoline. The cars are purpose built race cars, with a layout superficially resembling… …   Wikipedia

  • top dead centre — noun (of a reciprocating engine or pump) the piston position at the beginning of the outstroke, ie when the crank pin is nearest to the cylinder (also inner dead centre) • • • Main Entry: ↑top …   Useful english dictionary

  • Piston ring — A piston ring is an open ended ring that fits into a groove on the outer diameter of a piston in a reciprocating engine such as an internal combustion engine or steam engine. The three main functions of piston rings in reciprocating engines are:# …   Wikipedia

  • piston — A round or cylindrical plug, which closed at one end and open at the other. It slides up and down in the cylinder. It is attached to the connecting rod and when the fuel charge is fired, will transfer the force of the explosion to the connecting… …   Dictionary of automotive terms

  • top ring groove insert — A piston ring that has a nickel iron or comparable metal insert cast into the piston heads. The top ring groove is cut into this metal. As the top ring grooves in aluminum pistons pound out of shape, this insert groove will prolong the useful… …   Dictionary of automotive terms

  • piston crown — The very top of the piston. The piston crown transmits the pressure created during the ignition of the air/fuel mixture to the piston pin, then to the connecting rod, and from there to the crankshaft. The diameter of the piston crown is slightly… …   Dictionary of automotive terms

  • piston dome — The top surface of a piston. It is often shaped for better combustion and to prevent a valve from contacting the surface. Also called piston crown. See piston head …   Dictionary of automotive terms

  • piston head — That portion of the piston above the top ring. See piston dome piston crown …   Dictionary of automotive terms

  • top — [1] a car roof, especially that of a convertible. [2] The highest gear of a transmission. See canvas top convertible top electric top fabric top folding top hydraulic top piston top soft top sunroof top …   Dictionary of automotive terms

  • top dead center — The position of the piston within the cylinder when the piston has reached its farthest uppermost (closest to the cylinder head and valves) position …   Aviation dictionary

  • piston bore — The diameter of the hole in the cylinder block in which the piston moves back and forth between top dead center (TDC) and bottom dead center (BDC) …   Dictionary of automotive terms

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