Fuel injector with independent control of check valve and fuel pressurization
US6360721B1 · kind B1 · utility
51Cited by
24References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2000 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | May 23, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M63/0049
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydraulically actuated fuel injector has an electronically controlled actuator that moves an actuation valve member. The actuator can position the actuation valve member at one position to cause pressurization of fuel in a nozzle chamber for fuel injection, and at another position to hydraulically bias a check to halt fuel injection while maintaining full fuel pressure in the nozzle chamber indefinitely.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.