Electromagnetic pump device in fuel feeder of double-wheel vehicle
A fuel supply device and electromagnetic pump technology, which is applied in fuel injection devices, liquid fuel feeders, low-pressure fuel injection, etc., can solve the problems that hinder the cost reduction, increase the number of parts and the number of installation workers, etc.
Inactive Publication Date: 2006-04-26
KEIHIN CORP
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Problems solved by technology
Accordingly, piping must be prepared
In addition, one end of the piping needs to be connected to the plunger pump, and the other end of the piping needs to be connected to the fuel tank, which increases the number of parts and the number of installation man-hours, hindering cost reduction.
Method used
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[0061] Referring to Figure 1 and figure 2 One embodiment of the electromagnetic pump device of the fuel supply system for a two-wheeled vehicle according to the present invention will be described below.
[0062] Figure 1 is a longitudinal sectional view of the main part of the electromagnetic pump device, figure 2 It is the upper plan view of Fig. 1 . 1 is a pump body formed of aluminum material, zinc material, alloy resin material, etc., and the pump body 1 includes an insertion cylinder portion 1A and a mounting flange portion 1B. The insertion cylinder 1A is formed in a cylindrical shape facing upward in FIG. 1 , and an annular seal groove 1D is recessed on the outer periphery of the insertion cylinder 1A near the upper end surface (referred to as upper end surface 1C).
[0063] On the other hand, the pump suction path 1E is penetrated from the upper end surface 1C to the bottom of the insertion cylinder 1A.
[0064] The second fuel passage 1F is penetrated from the upp...
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PROBLEM TO BE SOLVED: To provide a solenoid pump device which is suitably loaded on a two wheeler, can use a fuel tank used in a conventional fuel supply device using a vaporizer, and has excellent piping connectivity with a fuel tank. SOLUTION: A pump body 1 is provided with an insertion cylindrical part 1A extended upward and a mounting flange 1B formed on the side of the insertion cylindrical part 1A. A housing 10 of a solenoid part S having a fixed iron core 13, a movable core 15, and a coil 11 wound with a solenoid coil 12 is attached to the mounting flange 1B. A pump part P comprising a plunger 8 driven by the solenoid part S, an suction side check valve 6, and a discharge side check valve 7 is provided in the pump body 1. A suction passage 4 in which the suction side check valve 6 is disposed in opened in an upper end face 1C of the insertion cylindrical part 1A through a pump suction passage 1E passing through the inside of the insertion cylindrical part 1A. The insertion cylindrical part 1A of the pump body 1 is inserted in an insertion hole T3 of the fuel tank T, and fastened and supported at the insertion hole cylindrical part T4 with a first fastening band 24, thereby, the pump suction passage 1E is fixed and opened in the fuel tank T. COPYRIGHT: (C)2003,JPO
Description
technical field [0001] The present invention relates to a fuel injection device that sucks fuel into a fuel tank through a fuel pump, and supplies the fuel boosted by the fuel pump to an internal combustion engine through a fuel injection valve installed on a fuel distribution pipe, and particularly relates to two-wheeled vehicles and the like It is a fuel injection device used in standard tricycles and general-purpose internal combustion engines, and as a fuel pump, a pump unit consisting of a plunger, a suction side check valve, and a discharge side check valve is used, which is driven by magnetic force generated by a solenoid unit. electromagnetic pump. Background technique [0002] A carburetor C shown in FIG. 7 is currently used as a fuel supply device for a two-wheeled vehicle. [0003] That is, the carburetor C includes a carburetor main body 52 having an air intake passage 50 penetrating inside and a throttle valve 51 for opening and closing the air intake passage 5...
Claims
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IPC IPC(8): F02M37/08F02M37/00F02M37/04F02M69/00F04B17/04
CPCY02T10/12
Inventor 山添博司大沼伦郎
Owner KEIHIN CORP