Engine valve operation

Details Engine valve operation Engine valve operation

2008-05-01

2009-11-24

Solis, Erick (Department: 3747)

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

Having a single combustible mixture inlet combined with...

C123S090150, C123S575000, C123S00100A

Reexamination Certificate

active

07621257

ABSTRACT:
Various approaches are described for operating an engine in a vehicle having variable valve operation for an intake and/or exhaust valve of the cylinder. In one example, a method comprises delivering a first fuel to a cylinder of the engine from a first injector; delivering a second fuel to the cylinder of the engine from a second injector, where a composition of at least one of the first or second fuels varies; and adjusting the variable valve operation responsive to the varying composition and further based on variation in the delivery of the first or second fuel.

REFERENCES:
patent: 7275515 (2007-10-01), Ikoma
patent: 7287492 (2007-10-01), Leone et al.
patent: 7287509 (2007-10-01), Brehob
patent: 7454285 (2008-11-01), Christie et al.
patent: 7461628 (2008-12-01), Blumberg et al.
patent: 2006/0102136 (2006-05-01), Bromberg et al.
patent: 2006/0102146 (2006-05-01), Cohn et al.

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