Valve configuration for converting an active suspension system into a passive suspension system
US5195772A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1991 |
| Grant date | Mar 23, 1993 |
| Priority date | — |
| Expiry date | Jun 18, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2600/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle suspension system having active and passive modes, comprising fluid providing means for providing a pressurized fluid, a cylinder, having at least two chambers, protection valve means having first and second states, for coupling the fluid providing means to the cylinder in the first state and uncoupling the fluid providing means from the cylinder in the second state, and by-pass valve means, having at least first and second states, being fluidly coupled to the cylinder and the protection valve means, for providing fluid communication therethrough between the chambers in the second state and not providing fluid communication therethrough between the chambers in the first state, and wherein the protection valve means is in the first state when the suspension system is in the active mode and the protection valve means and the by-pass valve means are in the second state when in the passive mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.