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:
May. 21, 2002
Filed:
Dec. 26, 2000
Peter Schueler, Leonberg, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A filter device for fuel supply system of an internal combustion engine of a vehicle has a housing, a filter insert arranged in the housing, at a dirt side a supply from a fuel container, at a clean side an outlet to an internal combustion engine, a return to the fuel supply container from the dirt side, a valve controlling the return, the valve having a movable wall which is loaded with a fuel pressure at the clean side and holding the return closed until a fuel pressure at the clean side exceeds a predetermined value, and thereafter is released by the valve, the valve having a rod which is displaceable by the movable wall and extends through the filter insert from the clean side to the dirt side, the movable rod having an end region which is arranged at the dirt side and controlling the return.