Pressurized fluid modulator assembly, particularly for a power-assisted steering system in a vehicle
US4757836A · kind A · utility
2Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 27, 1987 |
| Grant date | Jul 19, 1988 |
| Priority date | — |
| Expiry date | May 27, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2642
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A modulator assembly is interposed in a fluid circuit between a source (S) and a user device (U), said assembly being composed of a metering electrovalve (E) forming a first restriction (.sigma.1) in the fluid circuit, a pressure regulation valve (R), loaded by a spring (22), being subjected to the pressure of fluid delivered by the metering electrovalve to the user device and forming a second variable restriction (.sigma.2) between the outlet of the electrovalve (E) and a tank (33). The pressure regulation valve (R) is integrated into the metering slide (14) of the electrovalve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.