Valve stem seal

Details Valve stem seal Valve stem seal

F - Mech Eng,Light,Heat,Weapons

16

J

277/27

F16J 15/32 (2006.01) F01L 3/08 (2006.01)

Patent

CA 1095546

076179-BR - 1 - VALVE STEM SEAL Abstract of the Disclosure A valve stem seal for an intake or exhaust valve in an internal combustion engine where the seal allows a metered amount of oil to run down the valve stem for lubrication of the stem in its valve guide. The seal has a cylindrical wall engaging the valve guide boss and an upper inwardly extending flange provided with twin sealing lobes on the internal surface separated by an annular groove; the lobes and groove providing a pumping action for oil during re- ciprocation of the valve stem.

305849

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