油分离器内的冷冻机油经油冷却器冷却、油过滤器过滤后，在压差的作用下进入

Refrigeration oil in the oil separator through the oil cooler, the oil filter medium, enters the compressor rotor chamber under the pressure differential, the rotor and the suction chamber vapor refrigerating machine oil together with the compressed, high temperature and pressure of the fuel-air mixture re-entering the oil separator for separating oil, followed by recycling.

The frozen oil in the oil separator is cooled by the oil cooler and filtered by the oil filter, and under the action of the pressure difference, the frozen oil in the rotor cavity is compressed together with the inhaled steam, and the oil and gas mixture in the high temperature and high pressure enters the oil separator for oil and gas separation, and then cycles in turn.

After being cooled by the oil cooler and filtered by the oil filter, the refrigerant oil in the oil separator enters the compressor rotor cavity under the effect of pressure difference. The refrigerant oil in the rotor cavity is compressed together with the steam inhaled. The oil-gas mixture with high temperature and pressure enters the oil separator for oil-gas separation and circulation in turn.