Valve operating mechanism for internal combustion engine

Details Valve operating mechanism for internal combustion engine Valve operating mechanism for internal combustion engine

1986-07-31

1988-05-03

Argenbright, Tony M.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9044, F01L 134, F01L 126

Patent

active

047412976

ABSTRACT:
A valve operating mechanism for operating at least one valve of an internal combustion engine, includes a camshaft rotatable in synchronism with rotation of the internal combustion engine and having a pair of low- and high-speed cams of different cam profiles, a rocker shaft, and a pair of first and second rocker arms rotatably mounted on the rocker shaft and operable selectively by the low- and high-speed cams for operating the valve according to the cam profiles of the cams. A selective coupling is operatively disposed in and between the first and second rocker arms for interconnecting the first and second rocker arms in high-speed operation of the engine and for disconnecting the first and second rocker arms from each other in low-speed operation of the engine.

REFERENCES:
patent: 4523550 (1985-06-01), Matsuura
patent: 4545342 (1985-10-01), Nakano et al.
patent: 4612884 (1986-09-01), Ajiki et al.

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