Patent · US Active

Fuel system for an internal combustion engine

US8973556B2 · kind B2 · utility

5Cited by

6References

21Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Dirk Hoefner · Wellheim, DE
Sven Troester · Leibnizweg, DE
Bernd Schroeder · Eßlingen, DE
Berthold Pfuhl · Markgröningen, DE
Maximilian Stichlmeir · Ingolstadt, DE
Martin Laich · Murr, DE

Key dates

Filing date	Jun 9, 2011
Grant date	Mar 10, 2015
Priority date	—
Expiry date	Sep 25, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M63/029
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a fuel system of an internal combustion engine, a low-pressure delivery unit for the fuel, at least indirectly delivers fuel to at least one low-pressure injection device. The fuel system further provides a high-pressure delivery unit, which has a drive region and a delivery region and at least indirectly delivers fuel to at least one high-pressure injection device. According to the invention, the fuel is first delivered by the low-pressure delivery unit to the drive region of the high-pressure delivery unit and from there onward to the low-pressure injection device and/or to the delivery region of the high-pressure delivery unit.

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