Lube assembly for a transmission friction device
US5577588A · kind A · utility
43Cited by
9References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 1995 |
| Grant date | Nov 26, 1996 |
| Priority date | — |
| Expiry date | Mar 17, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2048/0221
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A selectively engageable friction device, such as a clutch or brake, requires a supply of cooling fluid during engagement. The friction device is engaged by fluid directed to a piston through a passage in a shaft. A stepped diameter tube is slidably disposed in the shaft and is movable therein by fluid pressure to control the flow of lubrication and cooling fluid which is directed to the friction device during engagement and to prevent distribution of lubrication and cooling fluid when the device is disengaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.