Wet friction plate assembly
US6712190B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2002 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Jul 29, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2069/004
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A wet friction plate assembly which is capable of discharging the lubricant existing between the friction plate and the separation plate to restrict the accompanying rotation of the separation plate of a wet multiple-plate clutch etc. while it is disengaged. A wet friction plate assembly for a wet multiple-plate clutch, or a wet multiple-plate brake includes a plurality of separation plates; a plurality of friction elements; and a plurality of friction plates, on contact surfaces of which the plurality of friction elements are fixed for transmitting torque to the plurality of separation plates in pressure contact, wherein the plurality of friction elements are disposed spacing at regular intervals circumferentially on each contact surface of the plurality of friction plates to form a plurality of oil passages for a lubricant between respective neighboring pairs of the plurality of friction elements, and wherein a width of each of the plurality of lubricant passages is increased progressively in a direction of inward to outward radially of each of the plurality of friction plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.