Lock-up clutch for a hydrodynamic torque converter
US6742637B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 5, 2002 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Jun 5, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2045/0294
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A lock-up clutch for a hydrodynamic torque converter has at least one friction area on a first converter component, which area can be brought into working connection with at least one opposing friction area on a second converter component by an engaging movement of this converter component or which can be separated from this opposing friction area by a disengaging movement in the direction opposite that of the engaging movement. On at least one of the two converter components, a pump device acting in either the friction area or in the opposing friction area is present, which, as a result of its geometric shape, has the effect of building up a pressure gradient, by means of which a forced flow of hydraulic fluid through at least one predetermined section of the friction area and/or of the opposing friction area is produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.