Injection device for a direct-injection internal combustion engine
US6446608B1 · kind B1 · utility
3Cited by
8References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 1, 2000 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Sep 1, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/304
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The injection device for a direct-injection internal combustion engine has an actuator and a piston connected to the actuator. A compression chamber connects to a high-pressure line. The device further includes an injection nozzle, a nozzle spring chamber, a nozzle chamber, a fuel supply line, and a pressure-relief valve. The pressure-relief valve draws a constant volume of fuel from the high-pressure line when it closes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.