Fluid pump pressure relief valve
US10156293B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2017 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Jul 18, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2001/0284
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In one or more embodiments, a pressure relief valve for a fluid pump has a valve head that has a recessed outlet-side surface that confronts a support end of a spring such that the valve head extends past the support end of the spring toward a pump outlet. The spring is biased to urge the valve head against a valve seat to a seated position. The spring is also configured to be compressed when fluid pressure at an inlet to the relief valve exceeds fluid pressure at the outlet by at least a predetermined amount such that the valve head is pushed away from the valve seat to an unseated position. A pressure relief valve may have multiple outlets at least some of which have unequal flow areas such that fluid pressure distribution across the flow area of the pressure relief valve cavity is nonsymmetrical.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.