Variable capacity torque transmitter
US4805752A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1988 |
| Grant date | Feb 21, 1989 |
| Priority date | — |
| Expiry date | Mar 21, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2048/0269
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid operated friction torque transmitting device has an apply piston disposed in a housing. An apply chamber having a predetermined area is formed on one side of the piston, and an opposing or compensating chamber of lesser area is formed on the other side of the piston. A torque transmitting shaft and an inner hub portion of the housing cooperate to form a rotary valve member which is operable to connect the apply chamber to high fluid pressure and the opposing chamber to low fluid pressure, when torque is transmitted from the input side of the transmitter to the output side of the transmitter; and to connect both the apply chamber and the opposing chamber to high fluid pressure when torque is being transmitted from the output side of the transmitter to the input side of the transmitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.