Variable valve lift apparatus

Details Variable valve lift apparatus Variable valve lift apparatus

2011-08-02

2011-08-02

Denion, Thomas E (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090330, C123S090350, C123S090480

Reexamination Certificate

active

07987825

ABSTRACT:
A variable valve lift apparatus according to an exemplary embodiment of the present invention includes an outer body connected with a valve for opening and closing the valve, an inner body that is reciprocally disposed within the outer body and contacts a first input cam configured to an input shaft, a lost motion spring disposed between the outer body and the inner body, a connecting portion selectively connecting the outer body and the inner body, a hydraulic pressure supplying portion supplying hydraulic pressure to the connecting portion, and a lubrication circuit supplying lubricant to a contacting portion of the first input cam and the inner body.

REFERENCES:
patent: 6125804 (2000-10-01), Kawai et al.
patent: 6397806 (2002-06-01), Imai et al.
patent: 6470840 (2002-10-01), Ebesu et al.
patent: 7210437 (2007-05-01), Geyer
patent: 2007/0289565 (2007-12-01), Fujii et al.

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