Anti-clogging fuel pump module
US7757672B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2008 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Oct 8, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M37/0094
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A by-pass fuel system in which the plumbing of the fuel pump module is configured to ensure by-pass strained (and filtered) fuel remains separate from the reservoir fuel after by-pass such that it is not re-strained before re-entry to the fuel pump. The anti-clogging fuel pump module is plumbed such that the by-pass strained fuel is directed to the fuel pump separately with respect to the reservoir fuel, wherein it never mixes with reservoir fuel except after the reservoir fuel has passed through the strainer. Thus, the by-pass strained fuel only mixes with strained fuel from the strainer before its entry to the fuel pump. Accordingly, only reservoir fuel in the fuel pump module is passed through the strainer, whereby the clogging rate of the strainer is minimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.