Liquid-sealing type vibration isolating apparatus
US6082718A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1998 |
| Grant date | Jul 4, 2000 |
| Priority date | — |
| Expiry date | Mar 2, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2230/183
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A liquid-sealing type vibration isolating apparatus including a first coupling member attached to a vibrator; a second coupling member attached to a member in a vehicle body; an insulator interposed between the coupling members, for absorbing and isolating vibration from the vibrator; a vibration isolating mechanism composed of a main chamber having a chamber wall formed by a portion of the insulator, and charged therein with liquid, an auxiliary chamber communicated with the main chamber through an orifice and having a chamber wall a portion of which is formed by a first diaphragm, an air chamber partitioned from the auxiliary chamber across the first diaphragm, and an equilibrium chamber partitioned from the auxiliary chamber across a second diaphragm; a selector for carrying out change-over operation so as to introduce negative pressure or the atmospheric pressure into the equilibrium chamber in the vibration isolating mechanism control for controlling the change-over operation of the selector, a negative pressure tank provided between a negative pressure source and the selector, and a check valve formed between the negative pressure tank and the negative pressure source, for al…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.