When the inlet/unloader valve is open, the air enters the compressor screw element. The screw element works like a pump and it compressed the air. During this process, oil is injected in the element. The oil is there to cool the air, as the air gets very hot during compression.
[pdf] The DHV-G/A series features a permanent magnet variable frequency single-stage compression screw air compressor that delivers stable air pressure with no impact during startup. It boasts variable flow control and excellent alternating current power supply voltage adaptability.
[pdf] The Oil Drilling Rig is a multiblock machine added by GregTech 5 Unofficial, used to pump oil or natural gas. Oil can be refined into plastics to use as crafting components, and both oil and natural gas may b.
[pdf] 
