Hydrodynamic clutch device
US7392889B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 15, 2005 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Sep 6, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2045/0289
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydrodynamic clutch device includes a clutch housing connected to a drive, a pump wheel connected to the clutch housing, and a turbine wheel connected to a takeoff, the turbine wheel and the pump wheel forming a hydrodynamic circuit. A bridging clutch which is essentially surrounded by the hydrodynamic circuit includes a piston and a friction surface which can be acted on by the piston to connect the drive to the takeoff independently of the hydrodynamic circuit, the piston having one surface facing a pressure space and an opposite surface facing the hydrodynamic circuit. A pressure circuit includes a first pressure medium line to supply the hydrodynamic circuit with clutch fluid and a second pressure medium line to supply the pressure space with clutch fluid. A seal at least reduces the exchange of fluid between the hydrodynamic circuit and the pressure space, and a throttle allows a defined exchange of fluid between the hydrodynamic circuit and the pressure space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.