Valve gear of an internal combustion engine

Details Valve gear of an internal combustion engine Valve gear of an internal combustion engine

2006-09-19

2006-09-19

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Rocker

C123S090440, C074S569000

Reexamination Certificate

active

07107953

ABSTRACT:
A valve gear for an internal combustion engine capable of promptly switching the position of a piston in a rocker arm to thereby change the engine operating condition with a satisfactory response, even in a low rotation region in which an adequate amount of oil discharged from an oil pump cannot be expected. Depending on positions of pistons slidably fitted in low-speed and high-speed cylinder portions provided in an intake driven rocker arm, a low-speed or high-speed drive rocker arm is selectively operated to press a corresponding one of the pistons. The piston in the low-speed cylinder portion switched in a low rotation region is made smaller in diameter than the piston in the high-speed cylinder portion, to be enabled to be promptly switched.

REFERENCES:
patent: 6644254 (2003-11-01), Harada et al.
patent: 7007646 (2006-03-01), Takayasu et al.
patent: 2001-041017 (2001-02-01), None

Affiliated with

Also associated with

Rating

Valve gear of an 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 gear of an internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve gear of an internal combustion engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3601599