Controlling engine charge dilution for fuel efficiency

Details Controlling engine charge dilution for fuel efficiency Controlling engine charge dilution for fuel efficiency

2005-08-16

2005-08-16

Wolfe, Jr., Willis R. (Department: 3747)

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

C123S568210, C123S19800E

Reexamination Certificate

active

06928982

ABSTRACT:
Fuel consumption in a vehicle engine is reduced by varying charge dilution in an intake manifold of the engine to maintain a pressure in the intake manifold within a predetermined range. Pumping work performed by engine cylinders is reduced, which reduces fuel consumption.

REFERENCES:
patent: 5372108 (1994-12-01), Wu
patent: 5666931 (1997-09-01), Pierik et al.
patent: 5749343 (1998-05-01), Nichols et al.
patent: 6390063 (2002-05-01), Obata et al.
patent: 6814035 (2004-11-01), Eiraku

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