FUEL PUMP CONTROL DEVICE OF FUEL SUPPLY SYSTEM

PROBLEM TO BE SOLVED: To improve fuel economy by restraining a steady delivery quantity of a fuel pump, in a fuel supply system having a jet pump for pumping up fuel of a fuel tank in a sub-tank. SOLUTION: This fuel supply system is provided for making the fuel in the fuel tank 11 flow in the sub-ta...

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Bibliographische Detailangaben
Hauptverfasser:	OSADA KIYOSHI, NAKABAYASHI KATSUHIKO, FURUHASHI HIROTSUGA
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BLASTING COMBUSTION ENGINES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To improve fuel economy by restraining a steady delivery quantity of a fuel pump, in a fuel supply system having a jet pump for pumping up fuel of a fuel tank in a sub-tank. SOLUTION: This fuel supply system is provided for making the fuel in the fuel tank 11 flow in the sub-tank 11 by sucking the fuel in the jet pump 22, by generating negative pressure in the jet pump 22, by jetting the fuel returned in the fuel tank 11 via a return pipe 18 of a pressure regulator 17 arranged in the delivery side of the fuel pump 11, to an introducing port of the jet pump 22, by arranging the jet pump 22 for pumping up the fuel of the fuel tank 11 in the sub-tank 12. When increasingly correcting the delivery quantity of the fuel pump 14 for driving the jet pump 22, an increase quantity correction quantity for driving the jet pump 22 is set to 0 when a fuel level in the fuel tank 11 detected by a fuel level gauge 24 is a predetermined level or more. COPYRIGHT: (C)2010,JPO&INPIT