| 摘要 |
PROBLEM TO BE SOLVED: To effectively suppress the vibration of a motor by increasing a heat radiating performance upon heating of the motor. SOLUTION: This electronic throttle device 1 comprises a throttle body 2 having a bore 5 and formed of a resin molding, a throttle valve 9 opening/closing the bore 5, and the motor 10 driving the throttle valve 9. The throttle body 2 comprises a motor housing 6 having a motor storage space. The motor 10 is formed in such a manner that its entire portion is stored in the motor storage space and its axial both ends are supported on the motor housing 6 through seal members. The motor housing 6 comprises a heat radiation window 32 cut open correspondingly to the center part of the motor 10. COPYRIGHT: (C)2005,JPO&NCIPI
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