Adaptive hydraulic engine mount
US6361031B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2000 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Feb 25, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F13/18
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An adaptive hydraulic engine mount for mounting an engine to a frame of a motor vehicle includes a pumping chamber and reservoir filled with damping fluid and an orifice track or damping channel communicating the pumping chamber with the reservoir. A decoupling diaphragm responds to pressure level in a control cavity to control pumping of damping fluid through the damping channel, thereby controlling the dynamic stiffness of the mount. Upon actuation of a control valve, the pressure level in the control cavity is changed to achieve a level of damping greater than the low damping level. According to another embodiment of the invention, the control cavity can be communicated with engine vacuum to achieve maximum damping, or air may be trapped in the control cavity to achieve an intermediate level of damping, or the control cavity may be communicated to atmosphere to provide low levels of damping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.