Injection system with an emergency operation function and an associated emergency operation method
US6948480B2 · kind B2 · utility
12Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2004 |
| Grant date | Sep 27, 2005 |
| Priority date | — |
| Expiry date | May 3, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0604
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An injection system for an internal combustion engine comprises a pump (1), a pressure accumulator (3), a sensor (7) for detecting the pressure in the pressure accumulator (3), a control valve (2) and a control or regulation unit (8). The control or regulation unit controls the pressure in the pressure accumulator (3) by opening or closing a connection to a low-pressure area (6). The control or regulation unit has an emergency operation function, which operates in such a way that when an error occurs in the regulator circuit, the control valve adopts the open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.