The function of the oil transfer pump is to ensure the diesel fuel circulation in the low-pressure oil pipeline, and to supply sufficient quantity and certain pressure of the fuel injection pump, the oil transfer volume should be 3-4 times of the full load fuel injection volume. Oil transportation pump is divided into gear type oil transportation pump, diaphragm type oil transportation pump, plunger type oil transportation pump, pipe type oil transportation pump and so on.

Liugong loader accessories working principle: the eccentric wheel on the camshaft of the injection pump presses down the piston through the rolling wheel and the jacking rod, so that the suction check valve and booster valve open, while the piston spring is compressed. When the eccentric turns the roller, the spring forces the piston up, the check valve and open, and the other two close. The camshaft rotates once a week, and the oil pump transfers oil twice. If the increase of oil pressure on the discharge line is greater than the spring force, the piston will stay at the lower part of the oil pump and continue to supply oil after the oil pressure decreases.

Use model：G4988747，855N、50CN、856H