Internal-combustion engines – Poppet valve operating mechanism – Rocker
Patent
1974-12-19
1976-06-22
Myhre, Charles J.
Internal-combustion engines
Poppet valve operating mechanism
Rocker
123 9016, 123 9062, F01L 118
Patent
active
039644553
ABSTRACT:
A valve control mechanism for effecting split engine operation of an internal combustion engine, the engine being of the overhead valve type in which each valve is actuated by a rocker arm fulcrumed intermediate its ends on a semi-spherical pivot bearing positioned on a mounting stud fixed to the cylinder head of the engine, one end of the rocker arm engaging the stem of the valve and its other end being engaged by a reciprocating push rod, the valve control mechanism including a piston type hydraulic actuator positioned to move the rocker arm and its pivot bearing axially on a mounting stud against the biasing action of a spring normally holding the rocker arm in an operating position to a position at which the rocker arm is then fulcrumed on the end of the valve stem, normal lash take-up being maintained by the use of a two-piece push rod that includes a spring biased push rod plunger telescopically received in one end of a push rod.
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patent: 3147745 (1964-09-01), Kilgore
patent: 3169515 (1965-02-01), Kilgore
patent: 3463131 (1969-08-01), Dolby
patent: 3716036 (1973-02-01), Kruger
patent: 3859969 (1975-01-01), Davis
General Motors Corporation
Krein Arthur N.
Myhre Charles J.
O'Connor Daniel J.
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