Control unit for spark ignition-type engine

Details Control unit for spark ignition-type engine Control unit for spark ignition-type engine

2005-09-13

2005-09-13

Yuen, Henry C. (Department: 3747)

Internal-combustion engines

Multiple cylinder

Cylinders in-line

C123S568110

Reexamination Certificate

active

06941905

ABSTRACT:
In a partial load range of the engine, control of the flowing state of sucked and discharged gas is executed between a pair of cylinders, an exhaust stroke of one of the cylinders overlapping with an intake stroke of the other, so that burnt gas discharged from preceding cylinders2A,2D on the exhaust-stroke side is introduced, in a state where it has been discharged, through an inter-cylindrical gas passage22into following cylinders2B,2C on the intake stroke side. In a higher load range than the partial load range, control is executed so that a fresh-air introducing valve18disposed in a fresh-air introduction passage of the following cylinders2B,2C is opened, both the burnt gas and fresh air are introduced into the following cylinders2B,2C, and fuel is supplied to conduct combustion in the following cylinders2B,2C.

REFERENCES:
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patent: 6425381 (2002-07-01), Rammer
patent: 6431128 (2002-08-01), Dabadie
Patent Abstract of Japan vol. 012, No. 315 (M-735), Aug. 26, 1988 & JP 63 088257 A (Keihin Seiki MFG Co Ltd) Apr. 19, 1988 *Abstract*.
European Search Report Dated Dec. 18, 2003.

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