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:
Aug. 09, 2005
Filed:
Jul. 31, 2003
Jeffery M. Konopacki, Ripon, WI (US);
Jeffery M. Konopacki, Ripon, WI (US);
Brunswick Corporation, Lake Forest, IL (US);
Abstract
A fuel pressure control system for a fuel injected engine measures the fuel pressure at an outlet of a fuel pump and controls the operating speed of the fuel pump as a function of the difference between a desired pressure and a measured pressure. Signals are provided to the fuel pump which are pulse width modulated signals that have a pulse width determined as a function of the desired pressure at the outlet of the pump and an actual measured pressure at the outlet of the pump. The desired pressure is determined as a function of air flow into the engine, a desired air/fuel ratio which, in turn, is a function of engine speed and the load on the engine, and a desired fuel rate which is determined as a function of the air/fuel ratio and the air flow into the engine. The desired fuel rate is then used to select a pressure at the outlet of the pump which will result in the desired fuel rate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile