Friction plate and wet-type multi-plate clutch
US7789209B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2006 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Mar 22, 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 adhering a friction material to a substantially annular core plate and wherein the friction surface is provided with an oil passage communicated with inner and outer peripheral edges of the friction plate, a first oil groove having an opening portion opened to the inner peripheral edge of the friction plate and an end portion terminating at a position between the inner and outer peripheral edges, and a second first oil groove having an opening portion opened to the outer peripheral edge of the friction plate and an end portion terminating at a position between the inner and outer peripheral edges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.