Operating mechanism for dual valves in an internal combustion en

Details Operating mechanism for dual valves in an internal combustion en Operating mechanism for dual valves in an internal combustion en

1985-07-23

1987-04-14

Lazarus, Ira S.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9044, 123198F, F01L 126

Patent

active

046569774

ABSTRACT:
A valve operating mechanism for an internal combustion engine having a pair of intake valves or exhaust valves in each cylinder with a first and a second rocker arm corresponding to the pair of valves and a cam for pivoting the first rocker arm. The rocker arms are provided with a connecting mechanism having a piston assembly which is movable between a position in which both said rocker arms are connected and a position in which both said rocker arms are disconnected from each other whereby either both valves of the pair or only one valve may be selectively actuated. A trigger member in the first rocker arm selectively restricts the movement of the piston and a timing cam engages and actuates the trigger member.

REFERENCES:
patent: 4387680 (1983-06-01), Tsunetomi et al.
patent: 4516542 (1985-05-01), Aoyoma et al.
patent: 4537165 (1985-08-01), Honda et al.
patent: 4545342 (1985-10-01), Nakano et al.

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