Structure for lubricating cam sliding surface in an internal com

Details Structure for lubricating cam sliding surface in an internal com Structure for lubricating cam sliding surface in an internal com

1995-07-13

1996-12-31

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

Lubrication

123 906, F01M 910, F01M 106, F01L 104

Patent

active

055884067

ABSTRACT:
Recessed portions extending in the direction of the cam shaft from the opposed edges of the intake cam and the exhaust cam are respectively formed on the base circles of the intake cam and the exhaust cam of the cam shaft. Moreover, projecting ribs crossing a predetermined circumference of the cam shaft, having rib end portions directed toward the recessed portions, and extending in the rotational direction of the cam shaft, are radially projectingly provided on the cam shaft adjacent to the recessed portions.

REFERENCES:
patent: 4711203 (1987-12-01), Seidl
patent: 4881496 (1989-11-01), Kronich
patent: 4995353 (1991-02-01), Stegeman et al.
patent: 5081880 (1992-01-01), Swars
patent: 5186129 (1993-02-01), Magnan et al.

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