Variable valve timing mechanism-equipped engine

Details Variable valve timing mechanism-equipped engine Variable valve timing mechanism-equipped engine

2008-03-04

2009-06-16

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Camshaft drive means

C123S090120, C123S19800E

Reexamination Certificate

active

07546824

ABSTRACT:
A variable valve timing mechanism-equipped engine is provided which allows a mount installing section and a hydraulic control valve of a variable valve timing mechanism to be positioned in a chain case without limitation of positioning of accessories such as a water pump, air conditioning compressor, power steering oil pump and alternator, and which simplifies an operating oil passage for the hydraulic control valve. In the variable valve timing mechanism-equipped engine, a mount installing section is positioned below an actuator cover section and is offset toward one side with respect to a cylinder axis, and intake- and exhaust-side hydraulic control valves are disposed sideward of the mount installing section with axes inclined toward a direction perpendicular to the crankshaft axis, the intake- and the exhaust-side hydraulic control valves overlapping one another.

REFERENCES:
patent: 6182624 (2001-02-01), Ozeki
patent: 2000-199409 (2000-07-01), None
patent: 2001-355415 (2001-12-01), None

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