Engine air-fuel control for an engine with valves that may be deactivated

United States of America Patent

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Apr 25, 2006
Grant Date
Sep 22, 2005
app pub date
Mar 19, 2004
filing date
Mar 19, 2004

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Abstract

A system and method to control engine valve timing to improve air-fuel control in an engine with valves that may be deactivated. Valves that may be deactivated are controlled in a manner to improve detection of individual cylinder air-fuel ratios.

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Patent Owner	Address
FORD GLOBAL TECHNOLOGIES LLC	1 AMERICAN RD FL4 DEARBORN MI 48126-2701

International Classification(s)

F02D:CONTROLLING COMBUSTION ENGINES

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Inventor Name	Address	# of filed Patents	Total Citations
Gibson, Alex	Ann Arbor, MI	24	804
Kolmanovsky, Ilya V	Farmington Hills, MI	57	1991

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Engine air-fuel control for an engine with valves that may be deactivated

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United States of America Patent

10805626

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PATENT NO	7032581
APP PUB NO	20050205074A1
SERIAL NO	10805626
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
April 25, 2006	US,7032581,B2 US7032581B2	GRANTED PATENT AS SECOND PUBLICATION
September 22, 2005	US,20050205074,A1 US20050205074A1	FIRST PUBLISHED PATENT APPLICATION

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10805626

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