Electronic hydraulic mount with continuously variable control
US4796874A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1987 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Oct 2, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F13/262
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic mount assembly includes a pair of mounting members connected to each other through a hollow elastomeric body. The body is closed by a resilient diaphragm so as to form a cavity for damping liquid. A partition or plate is provided to divide the fluid filled cavity into two distinct chambers. A primary chamber is formed between the partition and the interior wall of the body. A secondary chamber is formed between the partition and the interior wall of the diaphragm. The partition includes at least two flow passages connecting the two chambers. A sliding gate extends across the opening to one of the passages. This gate is displaceable to direct an infinitely variable flow of liquid between the primary and secondary chambers to provide an infinitely variable damping effect. The gate is actuated by a linear solenoid providing this desired proportional operation. The other passage opening remains fully open at all times. In another embodiment, a rotary valve extends across the passage entry. In still another embodiment the solenoid is driven by a pulse width modulator. A control circuit with on board transducers is provided to monitor vehicle operating and road conditions. A …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.