Pressure-actuated clutch with a double piston, and torque distribution device for a motor vehicle with two clutches of this type
US12188524B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 14, 2022 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Sep 14, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2021/0607
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A clutch device for a motor vehicle includes a disc pack and an actuation device. The disc pack includes an outer disc pack and an inner disc pack arranged. The actuation device includes a retaining element, a primary piston, a secondary piston and a spring element. The primary piston and the secondary piston are each arranged on the retaining element in an axially displaceable manner and delimit respective pressure chambers. The spring element is integrally formed with the secondary piston and connects the primary and secondary pistons. When a pressure is applied to a pressure medium in the primary pressure chamber, the primary piston is arranged to move the outer disc pack against the inner disc pack and frictionally transmit torque. When a pressure is applied to a pressure medium in the secondary pressure chamber, the secondary piston is arranged to move the primary piston against the outer disc pack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.