Torque converter reverse clutch system and method of operating a reverse clutch system
US8201675B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 2, 2009 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Oct 4, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2045/0284
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A torque converter including a clutch assembly and a channel. The clutch assembly includes: a reverse clutch with a piston plate, the reverse clutch controllably connecting a reverse stator and a drive hub; a forward clutch including the piston plate, the forward clutch controllably connecting a turbine and the drive hub; and a cavity partially formed by the piston plate. The channel supplies fluid to the cavity and to vent fluid from the cavity and the piston plate is displaceable in response to fluid pressure in the cavity to control operation of the reverse and forward clutches. In a preferred embodiment, forces associated with operation of the reverse and forward clutches are balanced within the clutch assembly. The torque converter also includes a clutch rotationally connected to a turbine and a ground and a one-way clutch rotationally connected to a forward stator and the ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.