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. 10, 1998
Filed:
Jun. 02, 1997
Brian R White, Stillwater, OK (US);
Vince E Notareschi, Stillwater, OK (US);
Grant W Hines, Stillwater, OK (US);
Brian D Simpson, Yale, OK (US);
Timothy M Baer, Stillwater, OK (US);
Matthew W Jaeger, Stillwater, OK (US);
Daniel E Clarkson, Stillwater, OK (US);
James Michael Horak, Stillwater, OK (US);
Brunswick Corp., Lake Forest, IL (US);
Abstract
A fuel supply system for a marine propulsion system having an electronically controlled fuel injection system eliminates the need for a vapor separator. The system pumps an excessive amount of fuel through a plumbed fuel supply loop and cools recirculated fuel to cool all the components in the plumbed fuel supply loop, i.e. a continuous duty, constant displacement fuel pump; a pressure regulator; and a water separating fuel filter. Recirculated fuel flows from the pressure regulator to the water separating fuel filter as does make-up fuel from a fuel tank. The fuel stream from the water separating fuel filter flows to the low-pressure side of the fuel pump, which pumps the fuel through the plumb fuel supply loop. A fuel injection portion of the fuel flows to the engine for combustion, while the remaining portion of the fuel is recirculated. The recirculated portion of the fuel is cooled, preferably using a water-cooled heat exchanger. The cooled, recirculated fuel passes through the pressure regulator and repeats recirculation to the water separating fuel filter.