Apparatus for pumping fuel from a tank to an internal combustion engine, and method for pressure detection
US7383821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2004 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Feb 19, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M37/106
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An apparatuses for pumping fuel to an internal combustion engine has a feed pump, a pressure line leading from the feed pump to the internal combustion engine, a check valve, and a pressure sensor connected to the pressure line is operatively connected to the pressure line downstream of the feed pump and upstream of the check valve. The measurement signal of the pressure sensor is used as a controlled variable for regulating the feed pump and/or for a leak diagnosis in the pressure line and/or for a tank leak diagnosis. The apparatus according to the invention is simplified because only a single pressure sensor is provided for the pressure change in the pressure line and in the tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.