US Patent 7802563 Air/fuel imbalance monitor using an oxygen sensor
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Patent abstract
Air/fuel imbalance monitoring systems and methods for monitoring air/fuel ratio imbalance of an internal combustion engine are disclosed. In one embodiment, an oxygen sensor is sampled above cylinder firing frequency and a ratio of data from at least one window over a total number of windows is determined. The approach can be used to indicate imbalances between engine cylinders.
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Patent Inventor Names
Bob Roy Jentz0
Has R Patel0
Ken John Behr0
Michael Igor Kluzner0
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US Patent 07802563 Air/fuel imbalance monitor using an oxygen sensor US Patent 7802563 Air/fuel imbalance monitor using an oxygen sensor
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Patent Number
07802563
Patent Number
7802563
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Official Website
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US Patent 07802563 Air/fuel imbalance monitor using an oxygen sensor
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Is a
Patent jurisdiction
Patent number
07802563
Date of patent
September 28, 2010
Patent application number
12055111
Date Filed
March 25, 2008
Patent primary examiner
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