Actuator and exhaust valve driving device
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United States of America Patent
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Nov 29, 2022
Grant Date -
Mar 11, 2021
app pub date -
Jun 30, 2020
filing date -
Sep 6, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
An actuator 1 includes a housing 2, an output shaft 3 protruding from the inside of the housing 2 to the outside, a motor 4 provided in the housing 2, and a reduction mechanism 5 that connects the motor 4 with the output shaft 3. The reduction mechanism 5 includes a worm gear, in which a worm 51 provided at a front end of a drive shaft 42 protruding from a main body 43 of the motor 4 and a worm wheel 52 rotating integrally with the output shaft 3 are engaged. A spindle 41 for increasing an inertia is provided between the worm 51 of the drive shaft 42 and the motor body 43.
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