Vacuum pump having a disconnectable drive coupling
US9856877B2 · kind B2 · utility
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1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2013 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Sep 25, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C28/28
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
To provide a failsafe drive coupling capable of high torque transmission in direct dog drive, a vacuum pump drive is disconnectable from a drive shaft upon movement of a piston against a return spring, under the action of oil pressure. The piston comprises a speed synchronizing clutch engageable with the input shaft to rotate the piston at the speed of the input shaft, and teeth to directly dog the piston and input shaft together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.