Pressure relief valve
US4542768A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1984 |
| Grant date | Sep 24, 1985 |
| Priority date | — |
| Expiry date | Mar 12, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7892
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pressure relief valve particularly suitable for fluid compressors includes a valve seat and a flexible valve closure element cooperating therewith. The closure element, formed from a single sheet of spring steel or similar flexible material, includes a planar portion normally overlying the valve seat to keep the valve closed, and a pair of flexible arms joined at one edge of the planar portion and extending around either side of the planar portion and beyond the opposite edge. In position, the remote ends of the arms are fastened to the supporting structure in a plane common with the valve seat, with the planar portion overlaying the valve seat and closing the valve orifice. Upon application of fluid pressure from the valve orifice to the underside of the planar portion of the valve closure, the planar portion lifts off the valve seat and the combined flexing of the planar portion with respect to the valve arms and the arms with respect to the supporting surface enable the planar portion to lift off the opening perpendicular to the direction of flow of fluid and parallel to the valve seat without additional valve guides. This provides maximum fluid flow for the amount of opening …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.