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:
Jul. 09, 2002
Filed:
Mar. 02, 2001
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An apparatus for pumping fuel from a tank ( ) to the internal combustion engine ( ) of a vehicle has a jet pump ( ), which supplies fuel returning from the internal combustion engine ( ) in a return line ( ) together with fuel disposed in the tank ( ) into a storage reservoir ( ) of a fuel delivery unit ( ). The invention proposes embodying a restriction ( ) for the fuel between a seat edge ( ) and a spring-loaded ball ( ). In addition, inlet openings ( ) for the fuel disposed in the tank ( ) are embodied in the vicinity of the restriction ( ). The apparatus has the advantage of a high delivery output, a compact design, and a delivery onset even when there are relatively low return quantities. Furthermore, fuel is prevented from flowing back into the return line ( ).