Valve gear device for internal combustion engines

Details Valve gear device for internal combustion engines Valve gear device for internal combustion engines

1993-09-14

1994-09-06

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9017, 123 9048, F01L 134

Patent

active

053438337

ABSTRACT:
A valve gear device for internal combustion engines comprises a suction and exhaust valve which is driven to be opened or closed by a high-speed cam or low-speed cams through a lifter wherein a guide plate is formed on the cam shaft and a guide groove which constantly engages with the guide plate is formed on the top portion of the body of the lifter. Also, the high-speed cam itself may function as the guide plate. The contacting surface of the high speed cam and the low speed cams can be surely regulated by the guide groove which constantly engages with the guide plate. Accordingly, the present invention can provide a small-sized valve gear device which surely regulates the contacting surface of the high-speed cam and the low-speed cams with the lifter.

REFERENCES:
patent: 4905639 (1990-03-01), Konno
patent: 5090364 (1992-02-01), McCarroll et al.
patent: 5113813 (1992-05-01), Rosa
patent: 5193496 (1993-03-01), Kruger
patent: 5253621 (1993-10-01), Dopson et al.

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