Vented high pressure valve
US9689364B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2015 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Sep 4, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M63/0295
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve assembly for a fuel pump is disclosed. In certain aspect, the valve assembly includes a housing defining a valve chamber, a valve inlet in fluid communication with the valve chamber, a valve outlet in fluid communication with the valve chamber, a valve seat; a valve body movably disposed within the valve chamber, a retainer sealingly engaging the housing and defining a cavity between the base portion of the valve body and the retainer, wherein the retainer comprises one or more control orifices formed therein and configured to provide fluid communication to the cavity to regulate a position of the valve body based on at least a pressure difference between the valve chamber and the cavity, and a spring member disposed between the retainer and the valve body, wherein the spring member is configured to bias the valve body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.