Fuel pump with an overflow and a bypass valves
A fuel pump and fuel injection technology, which is applied in the field of fuel pumps and pump devices with gear pumps, can solve problems such as structural troubles, and achieve the effects of optimizing the installation space, simplifying the structure, and compacting the structure
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[0019] figure 1 The fuel pump corresponding to the first exemplary embodiment is shown in partial axial section. In particular, the fuel pump 1 can be formed by a pump device for compressed air of a self-igniting fuel injection system for an internal combustion engine. A fuel pump is preferably used for the injection system of an internal combustion engine with a rail injection system in which the diesel fuel is stored under high pressure. However, the fuel pump 1 according to the invention is also suitable for other applications.
[0020] The fuel pump 1 has housing parts 2 , 3 which are connected to one another. The side 4 of the housing part 3 faces the side 5 of the housing part 2 here. The housing part 3 rests via the side 4 on the side 5 of the housing part 2 , wherein a sealing ring is provided for sealing between the housing parts 2 , 3 . The housing part 2 has a through opening 7 in which a drive shaft 8 is at least partially arranged. here in figure 1 The beari...
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