Patent · US Active

Fuel injection system

US8960161B2 · kind B2 · utility

1Cited by

14References

17Claims

0Family size

Assignee

Ford Global Technologies, LLC · US

Inventors

Leonhard Bartsch · Aachen, DE
Dietmar Hermann · Garbsen, DE
Claus Maerschank · Würselen, DE
David van Bebber · Aachen, DE

Key dates

Filing date	Apr 15, 2011
Grant date	Feb 24, 2015
Priority date	—
Expiry date	May 9, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The present application relates to a fuel injection system of an internal combustion engine having an automatic stop-start system, the fuel injection system comprising a high pressure fuel pump, which via a fuel pump line delivers fuel towards a common fuel rail, to which a fuel return line is connected. It is proposed that the fuel return line comprise a control element system, which firstly discharges a fuel pressure to a fuel tank, when a first predefined pressure limit is reached in the fuel return line, and which secondly prevents a further flow of fuel from the return line into the fuel tank, but allows a flow of fuel from the fuel tank into the fuel return line, so that the return line is designed as a fuel pressure accumulator.

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