In-cylinder direct-spray high-pressure pump
A technology of direct injection and high-pressure pump in the cylinder, which is applied in the direction of fuel injection pump, fuel injection device, charging system, etc., to reduce the pressure bearing area, facilitate installation, and increase the oil intake.
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[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0030] as attached figure 1 to attach Figure 5 As shown, an in-cylinder direct-injection high-pressure pump of the present invention includes a pump body 1, and the pump body 1 is provided with an oil inlet and an oil outlet. An oil inlet 10 is provided at the oil inlet, and in order to prevent impurities from entering the engine, a filter screen 11 is provided in the oil inlet 10 .
[0031] The pump body 1 is provided with a pressure stabilizing chamber 4, a low pressure chamber 5, a high pressure chamber 6, a first connecting oil passage 7, a second connecting oil passage 8, a diaphragm assembly 9 is arranged in the stabilizing chamber 4, and the oil inlet and the stabilizing chamber The top of the pressure chamber 4 is connected, the inlet of the first connecting oil passage 7 is connected to the bottom of the pressure stabilizing chamber 4, and t...
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