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Unit common-rail pump assembly for single cylinder diesel

The invention provides a unit common-rail pump assembly for a single cylinder diesel. The unit common-rail pump assembly for the single cylinder diesel comprises a pump body, a main valve seat detachably connected with the pump body, and an oil inlet structure arranged on the main valve seat, wherein a low-pressure oil cavity communicating with the oil inlet structure is arranged in the main valveseat; a proportional electromagnetic valve for controlling the oil inlet amount of the oil inlet structure is arranged in the low-pressure oil cavity; a pump head part communicating with the low-pressure oil cavity and used for oil inlet conveying control is arranged on the pump body; a plunger sleeve connected with the pump head part is arranged on the pump body and is provided with a high-pressure oil cavity communicating with an oil inlet cavity and an oil outlet cavity of the pump head part so as to push oil into the oil outlet cavity; a plunger movably connected with the inner wall of the plunger sleeve and used for providing a pushing force is arranged in the high-pressure oil cavity, and is connected with a drive shaft; and the pump head part is connected with an external oil pipe.Through the unit common-rail pump assembly for the single cylinder diesel provided by the invention, the production cost can be effectively reduced, and the reliability and the service life are improved.
Owner:珠海安瑾动力科技有限公司
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