Fluid flow regulating valve and system
US4230149A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1978 |
| Grant date | Oct 28, 1980 |
| Priority date | — |
| Expiry date | May 22, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7891
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid flow regulating valve is inserted in line with a fluid conducting medium to regulate the flow therethrough over a widely varying range of pressure differentials across the valve. The valve is constructed of a body portion having a fluid passageway therethrough terminating at one end in a land having an empirically derived, compound curved section. A compliant reed is affixed to the body portion adjacent the land and operates to press against and conform with the land in response to increasing fluid pressure differential across the reed whereby the rate of fluid flow through the valve remains substantially constant. In an alternative embodiment of the invention, a second similarly shaped land is provided adjacent the reed and opposite the other land to provide bidirectional flow control. The lands are integral portions of the body portion of the valve which is constructed of molded plastic or the like. The reed comprises thin metal shimstock or the like which has been heat staked to the body portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.