Steering gear with tunable hydraulic bushings
US9522698B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2016 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Feb 12, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/0421
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tunable hydraulic bushing mounts a steering gear to a vehicle frame member. The bushing is filled with a fluid and includes an inertia track and a pressure valve separating first and second fluid chambers or cavities. The inertia track provides uninterrupted fluid communication between the first cavity and the second cavity. The pressure valve is movable between an open position, which allows fluid communication though the pressure valve between the first cavity and the second cavity, and a closed position, which blocks fluid communication though the pressure valve between the first cavity and the second cavity. The pressure valve may be configured to be closed during loads induced by smooth road shake and open during loads greater than smooth road shake.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.