Continuous variable valve lift system

Details Continuous variable valve lift system Continuous variable valve lift system

2011-04-19

2011-04-19

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090390, C074S569000

Reexamination Certificate

active

07926456

ABSTRACT:
A continuously variable valve lift system according to an exemplary embodiment of the present invention includes an input cam, a drive shaft, a lifter including a contact portion and pivoting around the drive shaft in response to a rotation of the input cam, a valve unit, an output cam that contacts the contact portion, pivots around the drive shaft, and opens the valve unit, a return spring supplying restoring force to the output cam, and an adjusting unit adjusting a distance between the drive shaft and the contact portion.

REFERENCES:
patent: 6425357 (2002-07-01), Shimizu et al.
patent: 6907852 (2005-06-01), Schleusener et al.
patent: 2006/0207532 (2006-09-01), Fujita et al.

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