Fuel injector utilizing flat-seat poppet valves
US5947380A · kind A · utility
13Cited by
12References
16Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 3, 1997 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Nov 3, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/9069
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injector includes a center tube, a first valve separate from the center tube and surrounding a first end of the center tube and a second valve also separate from the center tube and surrounding a second end thereof. A solenoid is actuable to independently move the first and second valves and thereby control the application of fluid pressures to first and second ends of a check assembly, in turn to control injection of fuel into an associated engine cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.