The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 24, 2012
Filed:
Sep. 12, 2011
Norbert Mueller, Ludwigsburg, DE;
Venkatesh Kannan, Novi, MI (US);
Markus Friedrich, Gerlingen, DE;
Jason L. Kramer, South Lyon, MI (US);
Norbert Mueller, Ludwigsburg, DE;
Venkatesh Kannan, Novi, MI (US);
Markus Friedrich, Gerlingen, DE;
Jason L. Kramer, South Lyon, MI (US);
Robert Bosch GmbH, Stuttgart, DE;
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.