Fuel feeding apparatus
A fuel supply device and fuel technology, applied in fuel injection devices, liquid fuel feeders, low-pressure fuel injection, etc., can solve the problems of unbalanced pump discharge and difficulty in maintaining pump performance, and achieve good maintenance and suppression of steam The effect of generating and improving connection workability
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[0037] pass below figure 1 , an embodiment of the fuel supply device of the present invention will be described. 1 denotes a pipe assembly, and the pipe assembly 1 is formed of a pump stationary core 2, a tubular member 3, and an injection valve stationary iron core 4, and is formed as follows.
[0038] The pump fixed core 2 is made of magnetic material, the fuel discharge passage 2C is opened from the upper end 2A to the lower end 2B in a penetrating manner, and an engaging flange portion 2D and an engaging groove 2E are formed in the middle of its outer periphery.
[0039] The annular member 3 is formed of a non-magnetic material, and a fuel flow path 3C is formed penetratingly from the upper end 3A toward the lower end 3B.
[0040] The injection valve fixed core 4 is formed of a magnetic material, the fuel inflow passage 4C is opened from the upper end 4A to the lower end 4B in a penetrating manner, and an annular flange portion 4D serving as an upper magnetic pole plate i...
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