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:
Sep. 23, 2014
Filed:
Oct. 08, 2009
Christian Graspeuntner, Hallein, AT;
Joachim Lackner, Vigaun, AT;
Johannes Schnedt, Salzburg, AT;
Robert Bosch GmbH, Stuttgart-Feuerbach, DE;
Abstract
In a fuel supply system for heavy oil common-rail injection systems for internal combustion engines, including a tank (), a primary feed pump () for delivering heavy oil from the tank () to a high-pressure pump (), wherein the high-pressure pump (), via at least one high-pressure line (), is connected to a high-pressure accumulator (rail) () feeding at least one injector (), and, furthermore, a purge valve (), which is connected to the high-pressure accumulator via a separate high-pressure line () for directing at least a portion of the heavy oil back into the tank () via a return line, the purge valve () includes a valve member () which is movable between an opened and a closed position, a high-pressure connection for a high-pressure line () communicating with a heavy oil high-pressure accumulator (rail) (), a low-pressure connection for a return line, and actuating means for actuating the valve member (), wherein the valve seat () of the valve member () is designed as a sliding seat.