Valve operating system for internal combustion engine

Details Valve operating system for internal combustion engine Valve operating system for internal combustion engine

2006-11-07

2006-11-07

Kwon, John T. (Department: 3747)

Internal-combustion engines

Poppet valve operating mechanism

C123S182100

Reexamination Certificate

active

07131407

ABSTRACT:
A valve operating system includes: a decompression cam member that is provided on a camshaft, and moves between an operative position C where an exhaust tappet is operated in a valve opening direction in a compression stroke and an inoperative position D where the exhaust tappet is released; an exhaust gas recirculation cam member that is provided on the camshaft, and moves between an inoperative position F where the exhaust tappet is released and an operative position G where the exhaust tappet is operated in a valve opening direction in an intake stroke of the engine; and a common centrifugal mechanism that is driven by the camshaft to operate the decompression cam member to the operative position C in a starting rotation region of the engine and to the inoperative position D after the starting, and operate the exhaust gas recirculation cam member to the inoperative position F in a low speed operation region of the engine and to the operative position G in a high-speed operation region. Thus, the valve operating system can exert both a decompression function and an exhaust gas recirculation function.

REFERENCES:
patent: 6499451 (2002-12-01), Hendriksma et al.
patent: 6718929 (2004-04-01), Onozawa et al.
patent: 6796294 (2004-09-01), Tsubouchi
patent: 6973906 (2005-12-01), Yoshida et al.
patent: 2003/0188707 (2003-10-01), Takada et al.
patent: 2003/0217715 (2003-11-01), Pierik
patent: 2004/0139939 (2004-07-01), Tsubouchi
patent: 55-137245 (1954-05-01), None

Affiliated with

Also associated with

Rating

Valve operating system for internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Valve operating system for internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve operating system for internal combustion engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3627702