Fuel injector having dry-running protection valve and fuel system using same
US11280306B1 · kind B1 · utility
1Cited by
20References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2021 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Jan 15, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M69/383
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injector includes an injector housing, a check control valve assembly within the injector housing, a direct-operated check, a valve biaser supported on the injector housing, and a dry-running protection valve trapped between the valve biaser and the injector housing. The dry-running protection valve limits expelling drained actuation fluid from the fuel injector to enable filling a low-pressure volume therein in advance of filling a low pressure drain line common to a plurality of fuel injectors in an internal combustion engine system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.