Hydraulic control device for motor vehicle clutch
US6382082B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2000 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Dec 8, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D25/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A device wherein the cylinder (10) comprises a cylinder body (17) wherein a piston (20) slides, and comprising an intermediate element (91) housed in the cylinder body rear part (26), for axial positioning of at least an inner sealing joint (94) co-operating with the side wall (37) of the piston (20, 36), and which is axially maintained in the rear part (26) by a cylindrical annular rear sleeve (50) mounted in the rear part (26, 56) and sealingly fixed therein by bonding or welding, in particular ultrasonic welding. The intermediate element (91) is a tubular element forming joint-holder(s) (94, 96, 120) in the inner peripheral wall (93) of which is formed at least an inner joint housing (100, 106) open radially inwards towards the side wall (37) of the piston (20, 36).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.