Level regulator for automotive vehicles
US4890859A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 16, 1988 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | Sep 16, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S280/01
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Disclosed is a level regulator for automotive vehicles, including a hydraulically operating level adjusting device located on at least one axle of the automotive vehicle. A fluid separator provided in the level regulator includes a hydraulic cylinder having at least one inlet pressure chamber confined by a hydraulic piston and separated from at least one outlet pressure chamber capable of being connected to the level adjusting device. Pressure is applied to the hydraulic piston by a restoring force acting in opposition to the pressure in the inlet pressure chamber. The inlet pressure chamber, through switch valves is capable of being temporarily connected to a primary hydraulic pressure source such as that for the brake system of the vehicle and, normally, is capable of being connected to a hydraulic fluid return reservoir. The fluid separator includes an input cylindrical housing in which is disposed a first piston portion closing the inlet pressure chamber. Attached to the inlet cylindrical housing is an output cylindrical housing accommodating a second piston portion closing the outlet pressure chamber. The first piston portion applies pressure to the second piston portion throu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.