Fuel injection device for an internal combustion engine
US6823846B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 23, 2003 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Apr 23, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/705
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The fuel injection device has a high-pressure pump that supplies highly pressurized fuel to at least one high-pressure reservoir connected to injectors disposed in cylinders of an engine, wherein the injectors are connected to a common low-pressure reservoir. A pressure holding valve maintains a predetermined low pressure in the low-pressure reservoir. A pressure regulating valve regulates the pressure in the high-pressure reservoir by diverting fuel from the at least one high-pressure reservoir through a diversion connection into a low-pressure region. The diversion connection of the pressure regulating valve is connected to the low-pressure reservoir so that the low-pressure reservoir is filled with fuel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.