Fuel injection system with structurally biased relief valve
US6648610B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | May 15, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2605
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel system arranged to deliver fuel at high pressure to a fuel injector through a high pressure fuel line defined, at least in part, within first and second housing parts of a pressure relief valve arrangement. The first and second housing parts define first and second separable valve surfaces respectively. A clamping arrangement is provided for applying a clamping load to the first and second housing parts so as to urge first and second valve surfaces respectively thereof into substantially sealing engagement. The clamping arrangement is arranged to permit separation of the first and second valve surfaces in the event that fuel pressure within the high pressure fuel line exceeds a predetermined amount, thereby to permit fuel within the high pressure fuel line to flow to a region of relatively low pressure to relieve fuel pressure within the high pressure fuel line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.