Patent · US Expired

Delivery device for delivering fuel

US6422213B1 · kind B1 · utility

1Cited by

6References

10Claims

0Family size

Assignee

Mannesmann VDO AG · DE

Inventors

Bernd Rumpf · Hockenheim, DE
Christian Kochsmeier · Dortmund, DE
Dieter Keller · Aschaffenburg, DE
Peter Andreas Low · Rosdorf, DE

Key dates

Filing date	Mar 13, 2001
Grant date	Jul 23, 2002
Priority date	—
Expiry date	Mar 13, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/8326
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A delivery device (2) for delivering fuel, having a delivery pump (3) and a fuel filter (7), has a bypass line (9) which is conducted past the fuel filter (7). When new, the delivery pump (3) delivers fuel through the fuel filter (7). After the fuel filter (7) has become clogged with dirt, the fuel is delivered by the bypass line (9) through a second fuel filter (10). By this means, pollution of the environment with fuel is kept particularly low.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.