| 摘要 |
PROBLEM TO BE SOLVED: To enable a throttle valve to return to its original idling opening even if failure or the like occurs on a motor. SOLUTION: This device is provided with an input shaft 27 rotating with interlocking manual operation, a power transmission device 47 of which input side is connected to an input shaft 27, an output shaft 40 connected to an output side of the power transmission device 47 and rotating a throttle valve 22, a motor 42 driving the power transmission device 47 and rotating the output shaft 40 relatively to the input shaft 27 to change rotation ratio of the output shaft 40 to the input shaft 27 independently from manual operation, and a movable stopper 30 limiting rotation movable range enabling to change rotary movable range of the input shaft 27 in a valve close direction. COPYRIGHT: (C)2007,JPO&INPIT
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