The compressor is the power unit of the air-conditioning system that puts the refrigerant under high pressure before it pumps it into the condenser, where it changes from a gas to a liquid.

Air conditioning compressors aren ... to turn one into a functioning internal combustion engine. The build starts by disassembling the compressor, which contains three double-sided pistons.

Along with a TIG welder and mechanical ingenuity bordering on genius-level, all of which come to bear on this fridge compressor to four-stroke engine build. The video posted by [Let’s Learn ...