Variable valve mechanism

Details Variable valve mechanism Variable valve mechanism

2011-05-17

2011-05-17

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090390, C123S090270

Reexamination Certificate

active

07942119

ABSTRACT:
The present invention provides a variable valve mechanism that varies amounts of opening and closing of a valve includes a rotating cam, a rocker arm, two lash adjusters, a hydraulic passage, and a switching mechanism. The rocker arm includes an input member and an output member. The two lash adjusters support the rocker arm so that the rocker arm can rock. The hydraulic passage includes an internal oil passage that is provided in an interior of at least one of the lash adjusters, and an arm oil passage that is provided in an interior of the rocker arm and that is connected from the internal oil passage. The switching mechanism uses a hydraulic pressure in the hydraulic passage to perform a switching between a linked state and a released state, and the switching varies the amounts of the opening and the closing of the valve.

REFERENCES:
patent: 4768467 (1988-09-01), Yamada et al.
patent: 5033420 (1991-07-01), Matayoshi et al.
patent: 2001/0035140 (2001-11-01), Fernandez et al.
patent: 2002/0092490 (2002-07-01), Harada et al.
patent: 2004/0003789 (2004-01-01), Kreuter
patent: 2005/0028768 (2005-02-01), Ezaki et al.
patent: 2005/0132990 (2005-06-01), Haas et al.
patent: 196 06 796 (1996-11-01), None
patent: 10 2004 027 054 (2005-12-01), None
patent: 10 2004 039 503 (2006-03-01), None
patent: 0 416 628 (1991-03-01), None
patent: 1 197 640 (2002-04-01), None
patent: 2 185 784 (1987-07-01), None
patent: 64-80712 (1989-03-01), None
patent: 05-098913 (1993-04-01), None
European Search Report dated Aug. 20, 2008.
Japanese Office Action dated Nov. 9, 2010 with an English translation.

Affiliated with

Also associated with

Rating

Variable valve mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable valve mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable valve mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2641426