Internal-combustion engines – Charge forming device – Crankcase vapor used with combustible mixture
Patent
1987-03-10
1988-01-26
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Crankcase vapor used with combustible mixture
123425, 123435, F02M 2506
Patent
active
047210893
ABSTRACT:
A dilution control adjusts an EGR valve, variable valve lift mechanism or similar dilution control device in an internal combustion engine in response to the relationship between ignition timing and the timing of peak combustion pressure (LPP) in the vicinity of a desired timing of peak combustion pressure (DLPP). The relationship is derived in the process of controlling ignition timing in response to LPP, wherein LPP is controlled to DLPP or as close to it as possible. In this process, LPP varies slightly back and forth through DLPP or through a maximum retard value, if LPP is not attainable. The apparatus detects whether LPP is retarded with respect to DLPP as it reverses from retard to advance, increases dilution if it is so retarded and decreases dilution if it is not. The engine thus operates with maximum EGR consistent with LPP being equal to the desired value DLPP.
REFERENCES:
patent: 3977373 (1976-08-01), Sand
patent: 4314534 (1982-02-01), Nakajima et al.
patent: 4314540 (1982-02-01), Ikeura
patent: 4315492 (1982-02-01), Gardner
patent: 4481925 (1984-11-01), Karau et al.
patent: 4531499 (1985-07-01), Eckart et al.
patent: 4561401 (1985-12-01), Hata et al.
patent: 4624229 (1986-11-01), Matekunas
patent: 4679536 (1987-07-01), Morita
Buslepp Kenneth J.
Cinpinski Kenneth J.
Currie James H.
Jensen Edward J.
Medendorp Leroy E.
General Motors Corporation
Sigler Robert M.
Wolfe Willis R.
LandOfFree
Adaptive dilution control for IC engine responsive to LPP does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adaptive dilution control for IC engine responsive to LPP, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive dilution control for IC engine responsive to LPP will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1463674