Internal EGR for an internal combustion engine

Details Internal EGR for an internal combustion engine Internal EGR for an internal combustion engine

2007-05-08

2007-05-08

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090400, C123S568110, C123S568170

Reexamination Certificate

active

11269114

ABSTRACT:
An exhaust gas recirculation (EGR) system for use in a four-stroke, internal combustion, compression-ignition engine having at least one engine cylinder, at east one combustion chamber, at least one intake valve and a crankshaft. The EGR system includes at least one exhaust gas intake valve that is opened during at least a portion of an engine intake stroke when the exhaust gas pressure is greater than the pressure of gas in the combustion chamber, thus allowing exhaust gas to flow into the combustion chamber to establish internal EGR. A cam-operated intake rocker arm assembly has the form of both a first class lever and a second class lever. The first class lever directly communicates motion of the intake rocker arm assembly to open the intake valve, and the second class lever communicates motion of the intake rocker arm assembly through a hydraulic transfer assembly to open the exhaust gas intake valve.

REFERENCES:
patent: 4041913 (1977-08-01), Nohira
patent: 4142491 (1979-03-01), Hibino et al.
patent: 4173205 (1979-11-01), Toelle
patent: 4357917 (1982-11-01), Aoyama
patent: 4722315 (1988-02-01), Pickel
patent: 5031879 (1991-07-01), Umlauf, Jr.
patent: 5539638 (1996-07-01), Keeler et al.
patent: 5934263 (1999-08-01), Russ et al.
patent: 6308666 (2001-10-01), Drecq
patent: 6360159 (2002-03-01), Miller et al.
patent: 6968831 (2005-11-01), Kim et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3781726