Variable cam timing unit oil supply arrangement

Details Variable cam timing unit oil supply arrangement Variable cam timing unit oil supply arrangement

2005-03-29

2005-03-29

Lo, Weilun (Department: 3747)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090340, C123S1960CP

Reexamination Certificate

active

06871620

ABSTRACT:
An internal combustion engine arrangement7with a variable cam timing unit pressurized oil supply arrangement49is provided. A first pump44delivers oil through a first check valve62to a VCT unit83and additionally provides oil to the engine lubrication system. A second oil pump104provides pressurized oil to the VCT unit83through a second check valve106.An accumulator114is connected between the first62and second106check valves to pressurize oil delivered to the variable cam timing unit83.

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