Friction plate and wet-type multi-plate clutch having such friction plate
US8146725B2 · kind B2 · utility
2Cited by
22References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2006 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Jun 24, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2069/004
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention provides a friction plate having a friction surface formed by sticking an annular friction material to a substantially annular core plate and wherein the friction surface is provided with a first oil groove having an opening portion opened to an inner peripheral edge of the friction plate and an end terminating at a point between the inner peripheral edge and an outer peripheral edge, and a second oil groove having an opening portion opened to the outer peripheral edge of the friction plate and an end terminating at a point between the inner peripheral edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.