Accumulator distribution type fuel injection pump
A fuel injection pump and pressure accumulator technology, which is applied in the direction of fuel injection pumps, fuel injection devices, variable displacement pump components, etc., can solve problems such as complex composition, difficulty in ensuring strength, and complex structure, so as to improve reliability and prevent Partial wear, the effect of improving durability and reliability
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[0034] In order to illustrate the present invention in more detail, it is described below with reference to the accompanying drawings.
[0035] First, a schematic configuration of an accumulator-dispensing fuel injection pump of the present invention will be described. Such as figure 1 , figure 2 ,and Figure 3 ~ Figure 5 As shown, the fuel injection pump 1 configured as a pressure accumulator distribution type fuel injection pump includes an accumulator chamber 31 for accumulating high-pressure fuel, a plunger 7 for pumping fuel into the accumulator chamber 31, and The fuel pressure-fed by the pressure chamber 31 is distributed and supplied to the distribution shaft 9 and the like of the injection nozzle 29 of each cylinder.
[0036] The plunger 7 is driven to slide up and down by the cam 5 formed on the camshaft 4 through the plunger 11 , and the plunger chamber 7 a formed above the plunger 7 is connected to the accumulator chamber 31 through the check valve 28 .
[003...
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