EXHAUST GAS RECIRCULATION VALVE AND METHOD OF MANUFACTURING CAM THEREOF
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United States of America Patent
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N/A
Issued Date -
Oct 17, 2013
app pub date -
Apr 11, 2013
filing date -
Apr 12, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An exhaust gas recirculation (EGR) valve with improved space efficiency, improved stability, and maximized driving force and a method of manufacturing cam thereof. The EGR includes a housing, a drive motor, and a power transmission unit connected to the drive motor to transmit power generated by the drive motor. The power transmission unit includes gears, a rotary shaft connected to one of the gears constituting the power transmission unit, an actuating cam connected to the rotary shaft to move in a rotational direction thereof, the actuating cam having a guide groove formed therein, and a valve member operatively connected to the actuating cam to selectively open and close an exhaust gas flow channel in the housing according to operation of the actuating cam. One end of the valve member contacts a top of the guide groove such that the valve member is operated simultaneously when the actuating cam rotates.
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