Actuator and exhaust valve driving device
US11512782B2 · kind B2 · utility
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3Claims
0Family size
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Key dates
| Filing date | Jun 30, 2020 |
| Grant date | Nov 29, 2022 |
| Priority date | — |
| Expiry date | Feb 16, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/043
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.