Rotary hydraulic distributor and process for the assembly of such a distributor
US4771809A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 1987 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | May 20, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/4966
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The two stator members of the distributor (5, 6), between which the rotor of the distributor (10) is placed, are assembled under an axial prestress by an assembly tie rod (12) comprising, at one end, an annular shoulder (17) cooperating in bearing against a bearing surface of the adjacent stator member (5) and, at its other end a profiled annular groove (18) in which a metal ring (23) is fitted by force, under axial stress with radial deformation, so as to exert an axial stress on a radial bearing surface of the adjacent stator member (6). Application to the construction of rotary hydraulic distributors, especially for power-assisted vehicle steering systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.