Compressor valve noise attenuation
US4729402A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1986 |
| Grant date | Mar 8, 1988 |
| Priority date | — |
| Expiry date | Aug 1, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7937
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved valve assembly is disclosed, in which the valve assembly is provided with noise attenuation and is especially well-suited for use in refrigeration compressors. The valve assembly includes a retainer member fixed to a valve plate having a flow opening therethrough with a movable valve member therein between the retainer member and the valve plate. The retainer member edges are spaced relatively close to the valve plate to define a relatively small effective flow area therebetween, with additional effective flow area being provided by one or more openings through the valve plate. This arrangement provides for rapid fluid pressurization in the area between the valve member and the retainer member during valve opening in order to minimize impact forces transmitted from the valve member to the retainer member, thereby reducing noise emanating from the valve assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.