This looks like a well designed project, but it has the chicken and egg problem. buying two compressors to make one is not very efficient. After a bit of searching, I found: “KK-4835”.

This design is used on many semi-hermetic compressors and the compressor is generally referred to as an air-cooled compressor. The third method used is to wrap a water jacket around the body of a semi ...

Semi trucks are heavy pieces of machinery, ... the system alters the engine's exhaust valve operation so that the pistons act as air compressors that absorb kinetic energy from the semi in motion.

Product Description In this HVAC training video program, the focus is on semi-hermetic compressors found in commercial refrigeration equipment. Jim discusses how they differ from hermetic compressors, ...