Suspension apparatus of vehicle
US4685690A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1985 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | Dec 9, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2800/012
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A suspension spring is provided with a telescopic member comprising a cylinder and a piston, and fluid pressurized by a pump is controlled by a control valve, and fed to the telescopic member or discharged therefrom. Due to the foregoing, the total length of the suspension springs is varied. Since the control valve is in association with a steering mechanism, either one of the pair of right and left suspension springs is expanded according to steering operation, while the other suspension spring is contracted. As a result, a vehicle body is inclined toward the turning center side. The inside of the cylinder may be defined into two upper and lower cylinder chambers by the piston, so that when fluid is fed to one of the cylinder chambers, the fluid is simultaneously discharged from the other cylinder chamber. The control valve is a rotary valve formed of an inner valve and an outer valve. Such rotary valves may be mounted on the respective suspension springs. Otherwise, the stream of the fluid may be switched by only one rotary valve to expand or contract the respective suspension springs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.