Device for driving a plurality of hydraulic shift cylinders and hydraulic supply system for a twin-clutch transmission
US7418885B2 · kind B2 · utility
4Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 2005 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Dec 30, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/1044
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A device for driving a plurality of hydraulic shift cylinders, especially shift cylinders for shifting gears of a twin-clutch transmission, includes a first slide valve having a control intake to which control pressure is applied, a system pressure intake to which system pressure is applied, two outlets and at least one return outlet, the one outlet being connected to the system pressure intake and the other outlet being connected to the return outlet, as desired, and a valve device connected to the outlets of the slide valve via which the shift cylinders may be selectively actuated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.