Hydraulic coupling with a lock-up clutch
US4108289A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1975 |
| Grant date | Aug 22, 1978 |
| Priority date | — |
| Expiry date | Nov 21, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2045/021
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic transmission with a lock-up clutch comprising a housing which encloses a fluid transmission device like a torque converter and a mechanical lock-up clutch. The clutch includes a flexible disc which divides the chamber space confined by said housing into first and second chambers and may be selectively biased toward said first or second chamber due to a pressure difference generated between the two chambers. The flexible disc includes an opening through which a fluid circuit communicating through the first and second chambers in series is established to actuate, selectively either said torque converter or said lock-up clutch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.