Wedge one-way clutch
US7987958B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2007 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Jan 15, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2041/246
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A one-way clutch including first and second races with radially opposed circumferential surfaces and at least one wedge separate from the races and disposed radially between the races. The first race is arranged for rotational connection to a torque transmitting element in an automotive device and is arranged to rotate independently of the second race for relative rotation in a first direction. A circumference for one of the circumferential surfaces has a uniform radius. A circumference for the other of the circumferential surfaces includes at least one radial protrusion. The wedge elements are arranged to engage the protrusions and the opposing circumferential surface to rotationally lock the first and second races for relative rotation of the first race in a second rotational direction, opposite the first rotational direction. During lockup, a circumferential extent of the wedge elements in contact with the second race is greater than an axial extent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.