Power transmission apparatus
US4782930A · kind A · utility
18Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1987 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Jan 30, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K23/0808
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A power transmission apparatus comprises first and second rotary devices rotatable with respect to each other, a sealed chamber hermetically formed between the first and second rotary devices and filled with viscous fluid, first and second resistance devices disposed within the sealed chamber and respectively rotatable together with the first and second rotary devices to transmit torque therebetween by the shearing resistance of the viscous fluid, and a third device for controlling the pressure within the sealed chamber in accordance with the running state of an object provided with the power transmitting apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.