Patent · US Active

In-line noise filtering device for fuel system

US8161945B2 · kind B2 · utility

1Cited by

67References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Norbert Mueller · Ostseebad Nienhagen, DE
Venkatesh Kannan · Madurai, IN
Markus Friedrich · Moosburg an der Isar, DE
Jason L. Kramer · South Lyon, US

Key dates

Filing date	Sep 12, 2011
Grant date	Apr 24, 2012
Priority date	—
Expiry date	Sep 12, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/315
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injection system includes a fuel supply rail having a supply opening. A fuel injector is coupled to the fuel supply rail and configured to control the delivery of fuel from the fuel supply rail through the supply opening. A noise filtering device engages an upstream end of the fuel injector. The noise filtering device has a projecting portion extending at least partially into the supply opening along an axis, and the noise filtering device defines a restriction passage for directing fuel from the supply rail into the fuel injector. A face seal is established at a transverse face adjacent the supply opening.

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