Hydraulic actuation system for improved engine start

Details Hydraulic actuation system for improved engine start Hydraulic actuation system for improved engine start

2006-03-02

2009-06-16

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

C123S090150

Reexamination Certificate

active

07546821

ABSTRACT:
A method of starting an internal combustion engine for a vehicle having at least a hydraulic pump configured to be powered at least partially by a source other than the engine and an adjustable hydraulic actuator configured to be adjusted by hydraulic fluid of the hydraulic pump is provided. The method comprises during a first start of the engine, operating with the hydraulic actuator in a first position; and during a second start of the engine, operating with the hydraulic actuator in a second position, said second position different from said first position.

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