Valve-moving apparatus for internal combustion engine

Details Valve-moving apparatus for internal combustion engine Valve-moving apparatus for internal combustion engine

1993-03-04

1994-06-14

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9022, 123 9041, F01L 134, F01L 118

Patent

active

053200829

ABSTRACT:
In a valve-moving apparatus for an internal combustion engine, cam shafts having a low-speed cam and a high-speed cam and rocker shaft parts are provided; arm parts 33 having rocking ends opposing the intake valve or the exhaust valve are integrally mounted on the rocker shaft parts; a low-speed rocker arm and a high-speed rocker arm are rotatably mounted; engaging means for selectively attaching the rocker arms are disposed in the rocker shaft parts; and arm springs for endowing the rocker arms 35 with biasing forces are disposed, wherein the low-speed and high-speed arm springs are set to low-speed spring specifications to achieve interchangeability.

REFERENCES:
patent: 5020488 (1991-06-01), Watanabe
patent: 5099806 (1992-03-01), Murata et al.
patent: 5148783 (1992-09-01), Shinkai et al.
Japanese Patent Application No. 3-213604 with English Abstract attached, Sep. 1991.

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