sodium-filled valve

См. также в других словарях:

• sodium-cooled valve — An exhaust valve with a hollow stem that is partially filled with metallic sodium. When the valve gets hot enough (138°C), the sodium melts and moves up and down in the valve stem. The sodium absorbs heat from the hot valve head and carries it… …   Dictionary of automotive terms

• sodium-cooled exhaust valve — The exhaust valves of some high performance engines are filled with sodium to improve the heat dissipation from the valve stem to the valve guide, since the exhaust valve is subject to higher thermal loads than the intake valve …   Dictionary of automotive terms

• Gas-filled tube — See also: Gas discharge lamp A gas filled tube, also known as a discharge tube, is an arrangement of electrodes in a gas within an insulating, temperature resistant envelope. Although the envelope is typically glass, power tubes often use… …   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

• GM Family II engine — The Family II is a straight 4 piston engine that was originally developed by Opel in the early 1970s. It was used in the Opel Ascona and Opel Kadett and their corresponding sister models the Vauxhall Cavalier and Vauxhall Astra. In the US the… …   Wikipedia

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• Hispano-Suiza 12Y — The Hispano Suiza 12Y was a French aircraft engine in the pre WWII era. Developed from the earlier, and somewhat smaller, 12X, the 12Y became the primary 1,000 hp (750 kW) class engine and was used in a number of famous aircraft, including the… …   Wikipedia

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