Exhaust restriction device for improved sensor signal

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11746685
APP PUB NO 20230235690A1
SERIAL NO

17586269

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Abstract

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An engine exhaust system includes a catalytic converter, an exhaust conduit connected upstream of the catalytic converter, and an oxygen sensor extending into the exhaust conduit at a first axial position of the exhaust conduit. A valve is located within the exhaust conduit at the first axial position. The valve includes a movable throttle plate having a bypass notch formed on a periphery of the plate. The valve has an open position, and a closed position in which the bypass notch is placed adjacent to the oxygen sensor to guide exhaust over the oxygen sensor.

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Patent Owner(s)

Patent OwnerAddress
FORD GLOBAL TECHNOLOGIES LLCONE AMERICAN ROAD FOURTH FLOOR DEARBORN MI 48126-2701

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Host, Raymond Mount Clemens, US 3 6
Kiwan, Rani Canton, US 48 55

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