It's a long time since I can't explain myself about the following thing:

Motors of hermetic recip compressors, and scroll compressors are cooled by passing suction refrigerant, which, of course, usually has a low temperature; motor is placed into low pressure side. On the other side, the rotary compressors seems to be built "upside down": the induction motor is on the high pressure side, after the discharge port of the compressor. So, how is this motor cooled, since it's always staying in a very hot gas? On top of this, the compressor is usually wrapped in acoustic insulator, so it can't pass heat to surrounding air. I can't imagine why ALL the rotary compressors are built this way, with motor on the high pressure side.

Thank you!