What is the working principle of oil-gas compressor?

What is the working principle of oil-gas compressor? 

The core of oil-gas compressor is to realize oil-gas pressurized transportation through energy conversion, and its working process is mainly divided into three stages, which are coherent and efficient: 

1. Inhalation stage: the core components (such as rotor and piston) move to form negative pressure, and the external low-pressure oil and gas is sucked into the closed working chamber through the intake valve after impurities are removed by the filter device, thus completing the intake preparation. 

2. Compression stage: the volume of the working chamber gradually decreases with the movement of the components, the oil and gas are continuously compressed, the pressure and temperature of the oil-gas compressor increase synchronously, and some models will spray lubricating oil to assist cooling and sealing, thus reducing the wear of the components. 

3. Exhaust stage: When the oil and gas pressure reaches the set value, the exhaust valve will automatically open, and the high-pressure oil and gas will be discharged from the working chamber, cooled and separated, and then transported to the subsequent pipe network or storage equipment to complete a cycle