| 摘要 |
An idle air control valve for a vehicle includes a housing ( 21 ), a motor ( 32 ) disposed in the housing, a shaft ( 29 ) associated with the motor, and a bellows assembly ( 30 ) including a bellows structure ( 10 ) having a first end defining a base ( 14 ), a second, opened end ( 16 ), and a bellows ( 18 ) between the first and second ends. An annular rim member ( 28 ) is associated with the second opened end. A pintle ( 24 ) has surfaces defining an annular groove ( 26 ) therein. The annular rim member ( 28 ) is received, in press-fit engagement, in the annular groove ( 26 ). The base ( 14 ) is in press-fit engagement with a recess ( 22 ) in the housing and the pintle ( 24 ) is coupled with an end of the shaft, such that the bellows structure together with the pintle surround the shaft and provide a barrier substantially preventing contaminants from entering the motor.
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