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    • 71. 发明专利
    • OIL FEEDING DEVICE
    • JPS6371464A
    • 1988-03-31
    • JP21395386
    • 1986-09-12
    • TOKYO TATSUNO KK
    • TATSUNO HIYOSHI
    • B60S5/02B67D7/70
    • PURPOSE:To improve the oil feeding efficiency in case of the manual oil supply in the cut of electricity by forming a side passage which makes a detour around a motor-driven pump and installing a manually operating pump into the side passage, in the captioned oil feeding device arranged in the gas station such as gasoline stand, etc. CONSTITUTION:An oil supplying machine 1 is equipped with a motor-=driven pump 4 driven by a motor 3, and the fuel oil inhaled from an oil storage tank through a suction pipe 5 by the drive of the pump 4 is supplied into a nozzle 9 through a discharge pipe 6 having a flow meter 7 installed and a hose 8. In this case, the suction pipe 5 and the discharge pipe 6 are connected with a bypass piping 14 which makes a detour around the motor-driven pump 4, and a manually operating pump 15 in piston system is installed into the bypass piping 14. When electricity is cut, oil supply by the manual operating pump 15 is performed by closing an opening/closing valve V1 and operating a handle 16 after opening an opening/closing valve V2.
    • 75. 发明专利
    • DOUBLE SHAFT MULTI-FLOW STABLE CONVEYING DEVICE
    • JPS60184976A
    • 1985-09-20
    • JP3873684
    • 1984-03-02
    • KIYOUSHIN KOGYO KK
    • TAKAHASHI KAZUTOMO
    • F04B1/14B67D7/70F04B9/02F04B9/04
    • PURPOSE:To secure a liquid-conveying device consisting in a simple construction capable of conveying a liquid continously from a discharge port with non-joint motion owing to operations of each pair of discharge valves and suction valves, attendant upon the discharge and suction of two plunger pumps to be connected with each other in parallel. CONSTITUTION:A threaded cylinder 2a is attached to a main shaft tip of a motor 2, and with turning operation of an adjusting lever 3, a screw thread 5 of a cam rod 4 capable of adjusting an axial position is screwed in the threaded cylinder 2a. This cam rod 4 forms a cam groove 6 to be varied in depth along the driven direction toward the outer surface, and with rotation of this cam rod 4, slide levers 10a and 11a of a pair of plunger pumps 10 and 11 installed in a machine body 12 is made so as to be reciprocated. In addition, inside the machine body 12, there are provided with each pair of liquid-conveying holes 13 and return liquid holes 14 so as to be interconnected to each of these pumps 10 and 11, while each of these holes 13 and 14 are interconnected to a discharge valve 15 and a suction valve 16. And, the liquid-conveying hole 13 is interconnected to a discharge port 21 from the discharge valve 15, while the return liquid hole 14 to a suction port 22 from the suction valve 16, respectively.