Device and method for detecting malfunctions in a fuel injection system provided with a fuel pressure damper
US7370519B2 · kind B2 · utility
1Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2003 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Apr 12, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In the low pressure zone (10) of a fuel injection system a fuel pressure damper (12) is provided which dampens pressure variations, especially such pressure variations that are caused by operation of a high-pressure fuel pump (16) mounted downstream of the low pressure zone (10). In the low pressure zone (10), the pressure profile is detected by a pressure sensor (14). The high-frequency components of the pressure profile detected by the pressure sensor (14) can be used to ascertain whether the fuel pressure damper (12) functions properly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.