Internal-combustion engines – Engine speed regulator – Having plural throttle valve structure
Reexamination Certificate
2011-07-19
2011-07-19
Cuff, Michael (Department: 3783)
Internal-combustion engines
Engine speed regulator
Having plural throttle valve structure
C123S184530, C123S337000, C123S442000, C251S214000
Reexamination Certificate
active
07980219
ABSTRACT:
An intake controller includes a casing defining an intake passage that communicates with a combustion chamber of an engine, a valve received in the casing to open/close the passage, a rotational shaft that changes an opening degree of the valve, an actuator having a gear that drives the valve through the shaft, a gear retaining member retaining the gear, a sensor including a magnet that rotates according to rotation of the shaft and a magnetic detection element that detects magnetic flux generated from the magnet, and a sensor retaining member retaining the sensor. The sensor detects the opening degree of the valve based on a change of density of the magnetic flux passing through the element. One of the gear and the gear retaining member, and one of the sensor and the sensor retaining member are separately fixed on the shaft.
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Japanese Office Action dated Apr. 14, 2009, issued in corresponding Japanese Application No. 2007-178801, with English translation.
Sano Ryo
Torii Katsuya
Cuff Michael
Denso Corporation
Nguyen Hung Q
Nixon & Vanderhye PC
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