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:
Nov. 29, 2016
Filed:
Jun. 10, 2014
Mahle International Gmbh, Stuttgart, DE;
Mahle International GmbH, , DE;
Abstract
A fuel supply system for an internal combustion engine may include a first tank and a second tank connected to each other via a fuel line. A first pump and a first fuel filter may be arranged between the first tank and the second tank. A second fuel pump and a second fuel filter may be arranged between the second tank and the engine. The first fuel filter may have a water separator. A first return line may be fluidly connected to the engine on an inlet side and to the second tank on an outlet side and/or the first fuel filter on a raw side. A preheating valve may be arranged in the first return line and be configured to distribute the fuel flowing back from the engine to the first fuel filter and/or the second tank. A second return line may connect the first and second tank.