Fuel pressure regulation system
US8485160B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2008 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Apr 14, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0602
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a fuel pressure regulating system for an internal combustion engine, having a pressure accumulator storing fuel under pressure and feeding injectors providing the combustion chambers of the internal combustion engine with fuel, a high-pressure pump feeding a fuel mass flow into the pressure accumulator, a first valve for throttling the fuel mass flow, a second valve by means of which fuel can be discharged from the pressure accumulator, and a control unit for actuating the valves, the control unit determines a fuel mass flow required by the pressure accumulator depending on a prescribed target pressure in the pressure accumulator, divides the determined fuel mass flow into a partial mass flow fed in by the first valve and discharged by the second valve, and actuates the valves according to the partial mass flows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.