Internal-combustion engines – Engine speed regulator – Responsive to deceleration mode
Patent
1995-11-28
1996-12-24
Nelli, Raymond A.
Internal-combustion engines
Engine speed regulator
Responsive to deceleration mode
F02D 3902
Patent
active
055865313
ABSTRACT:
An improved engine retarder cycle in which the exhaust valve(s) or a dedicated retarder valve is opened during the compression stroke much earlier than in prior art retarder cycles. By opening the retarder valve earlier, the cylinder pressure is not allowed to build to as high a level as in the prior art, thereby requiring less force to push open the retarder valve. Additionally, increased retarder power is generated by increasing the charge of air that is in the cylinder during the compression stroke. This is accomplished by increasing the turbocharger boost by eliminating wasted flow in and out of the exhaust valves. The increased air mass is also created by incorporating a retarder intake event which opens the valve(s) starting at approximately mid-intake stroke and ending in the first half of the compression stroke. The result is increased retarding work and decreased mechanical loading on the engine.
REFERENCES:
patent: 3367312 (1968-02-01), Jonsson
patent: 4033304 (1977-07-01), Luria
patent: 4153016 (1979-05-01), Hausknecht
patent: 4572114 (1986-02-01), Sickler
patent: 4592319 (1986-06-01), Meistrick
patent: 4706625 (1987-11-01), Meistrick et al.
patent: 4898128 (1990-02-01), Meneely
patent: 4898206 (1990-02-01), Meistrick et al.
patent: 4981119 (1991-01-01), Neitz et al.
patent: 5146890 (1992-09-01), Gobert et al.
patent: 5257605 (1993-11-01), Pawellek et al.
patent: 5460131 (1995-10-01), Usko
Cummins Engine Company, Inc.
Nelli Raymond A.
LandOfFree
Engine retarder cycle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Engine retarder cycle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine retarder cycle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1172986