FUEL SUPPLY DEVICE

• Main Authors: ONO KAZUJI, YOKOYAMA NAOKI, UKAGO YOSHIYUKI, MIZOTA ARATA
• Format: Patent
• Language: English
• Published: 04.08.2011
• Subjects: BLASTING; COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

PROBLEM TO BE SOLVED: To provide a fuel supply device for adequately controlling the pressure of fuel on the side of a fuel injection device while achieving a higher degree of freedom of layout and lower manufacturing cost. SOLUTION: The fuel supply device 1 includes a fuel pump 3 for sucking fuel from a fuel tank and for discharging the sucked fuel to the side of the fuel injection device, a first control valve 4 provided on the suction side of the fuel pump 3 for controlling the amount of the fuel to be discharged from the fuel pump 3 to the side of the fuel injection device, a second control valve 5 for controlling the pressure of the fuel on the side of the fuel injection device beyond the fuel pump 3 to be reduced, and a single actuator 6 having a first drive mode and a second drive mode as drive modes to drive the first and second control valves 4, 5, for driving only the first control valve 4 in the first drive mode and for driving both the first and second control valves 4, 5 in the second drive mode. COPYRIGHT: (C)2011,JPO&INPIT