Method of reducing the pressure and energy consumption of hydrau

Details Method of reducing the pressure and energy consumption of hydrau Method of reducing the pressure and energy consumption of hydrau

1994-11-15

1995-09-12

Yuen, Henry C.

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

123315, F01L 902

Patent

active

054489733

ABSTRACT:
A method of operating at least two exhaust valves in an engine cylinder using a four-way hydraulic actuator to open a first exhaust valve and after a time delay using a three-way hydraulic actuator to open a second exhaust valve to minimize the overall energy consumption in operating engine valves using hydraulic actuators.

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patent: 5231959 (1993-08-01), Smietana
patent: 5255641 (1993-10-01), Schechter
patent: 5275136 (1994-01-01), Schechter et al.

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