Low friction valve train

Details Low friction valve train Low friction valve train

F - Mech Eng,Light,Heat,Weapons

01

L

F01L 1/06 (2006.01) C10M 111/04 (2006.01) C23C 4/00 (2006.01) C23C 4/18 (2006.01) F01L 1/04 (2006.01) F01L 1/047 (2006.01) F01L 1/053 (2006.01) F01L 1/08 (2006.01) F01L 1/14 (2006.01) F01L 1/16 (2006.01) F01L 1/20 (2006.01) F01L 3/04 (2006.01) F01L 3/08 (2006.01) F01L 3/22 (2006.01)

Patent

CA 2102575

A low friction valve train is provided for use with a high speed internal combustion engine, The valve train includes a tappet formed of a lightweight metal preferably aluminum or magnesium alloy. The outer surface of said tappet is impregnated with a solid film lubricant to provide reduced friction during operation. The valve train further includes a cam shaft having cams, the wear/bearing surfaces of the cams are impregnated with a solid film lubricant to further reduce friction during operation.

La présente invention a pour objet une soupape d'échappement avec dispositif de commande à coefficient de friction réduit pour utilisation dans un moteur à combustion interne haute vitesse. La surface extérieure du poussoir de soupape est imprégnée d'un film solide lubrifiant contribuant à réduire la friction durant le fonctionnement. La soupape avec dispositif de commande en question comporte en outre un arbre à cames dont les surfaces d'usure et d'appui sont imprégnées d'un film solide lubrifiant qui contribue à réduire davantage la friction durant le fonctionnement.

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