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. 08, 2008
Filed:
Sep. 11, 2006
Luke A. Doepke, Fond du Lac, WI (US);
Michael A. Torgerud, Mt. Calvary, WI (US);
Troy J. Kollmann, Mt. Calvary, WI (US);
Luke A. Doepke, Fond du Lac, WI (US);
Michael A. Torgerud, Mt. Calvary, WI (US);
Troy J. Kollmann, Mt. Calvary, WI (US);
Brunswick Corporation, Lake Forest, IL (US);
Abstract
A fuel system for a marine propulsion device controls the pressure of liquid fuel within a fuel rail by altering the pump speed of a fuel pump. The fuel pressure in the rail is measured by a pressure transducer which provides an output signal to a microprocessor that allows the microprocessor to select an operating speed for the fuel pump that conforms to a desired fuel pressure in the rail. By decreasing or increasing the operating speed of the positive displacement fuel pump as a function of the measured pressure in the rail, the microprocessor can accurately regulate the fuel pressure.