| 摘要 |
PURPOSE: A feed pump is provided to stabilize an injection performance of fuel injection pump and maintain optimized engine performance by eliminating an exclusive cam for driving feed pump. CONSTITUTION: A hole(23) to which a plate(10), a rotor(11), a ring(12) and a cover are to be assembled, is formed at a lower portion of a housing(9). A vane(14) is inserted into a vane insertion groove(17) of the rotor in such a manner that the vane moves between the rotor and the ring, and a variable space(29) is defined by the vane. A fuel inlet(19) and a fuel outlet(20) are formed at an upper portion of the housing. A fuel inlet channel(21) is formed for connecting the fuel inlet and a fuel storage groove(25a) of entrance side of the plate, while a fuel outlet channel(22) is formed for connecting the fuel outlet and a fuel storage groove(25b) of exit side of the plate. Two or move check valves(15a,15b) are installed at an intermediate portion of the fuel inlet channel, and a priming pump(16) is mounted to be coupled with the check valve adjacent to the fuel inlet. A feed pump(3) is coupled with a cam shaft protruded from a fuel injection pump.
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