There is an oil pipe on the water jacket cover of reciprocating compressor.

An oil pipe is arranged on the water jacket cover of the reciprocating compressor as an outlet branch pipe. The tie rod bolts are tightened by the hydraulic pump. The main bearing is installed on the fuselage, and semi-circular thrust ring is installed on the inner and outer sides of the bearing near the motor side to ensure the axial positioning of the compressor crankshaft and limit its maximum axial movement. The side of the bearing cover and the fuselage are single, and each bearing cover is also marked with numbers to facilitate correct seating. The oil distribution pipe is arranged in the fuselage, from which branch pipes are led out to distribute lubricating oil to the middle slider, main bearing, connecting rod head and crosshead pin.