Vibration isolating apparatus
US4660812A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1985 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | Aug 20, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F13/26
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vibration isolating apparatus is mounted on a vehicle body so as to absorb vibrations from a vibration source such as an engine. The apparatus includes a deformable liquid chamber which is divided into small liquid chambers by means of a partition plate. A bore which is formed in the partition plate is opened and closed by means of a valve, whereby the small liquid chambers are communicated with and shut off from each other. As a means for absorbing low-frequency vibrations, an orifice is provided which provides communication between the small liquid chambers. When a high-frequency vibration is generated, the valve is opened, and the bore of the partition plate causes liquid-mass resonance. A part of one of the small liquid chambers is constituted by a diaphragm through which a valve-driving force is transmitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.