Bi-state hydraulic engine mount
US6036183A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1998 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Jun 28, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F13/26
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic mount is operable in soft and firm modes and includes a valve positioned at the partition between the working chamber and the reservoir. A normally open fluid path extends through the partition and opens between the working chamber and the reservoir for soft operational characteristics useful in attenuating low amplitude vibrations. The valve body and the partition together define a control chamber in the fluid path. The control chamber is open to the reservoir through lateral openings in the valve body so that fluid pressure in the control chamber is approximately at atmospheric pressure so that a small actuator can move the valve. When the valve is closed the fluid path is closed for firm operational characteristics in controlling large amplitude inputs such as those from torque transients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.