Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Patent
1982-09-29
1985-01-01
Lazarus, Ira S.
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
123 9046, 123 9058, F01L 134, F01L 124
Patent
active
044910983
ABSTRACT:
A rocker arm adapter for use in the timing mechanism of an internal combustion engine is disclosed. The adapter is a method for altering the cam profile of the exhaust valve of the engine with respect to the intake valve. It includes a fluidic delay device mounted in either the first end or the second end of the rocker arm. The delay device includes a piston which is allowed to move various distances in a cavity formed in the rocker arm, the distance being directly related to the speed of movement of a push rod member. As the speed of the engine, and the speed of movement of the push rod, increases, the piston will be allowed to move a greater distance into the cavity so that the delay in actuation of the rocker arm by the push rod is increased.
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Angrist, S. W., "Fluid Control Devices", Scientific American, vol. 211, No. 6, (Dec. 1964), pp. 80-88.
Bailey R. S.
Lazarus Ira S.
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