PREDICTING THE INFLUENCE OF INTERNAL MOUNTING BRACKET AND EXTERNAL MOUNTING FEET LOCATIONS ON SOUND RADIATED FROM HERMETIC COMPRESSOR SHELLS

摘要

A typical hermetic refrigeration compressor consists of a thin closed cylindrical shell with three internal spring mounting brackets supporting the internal pump mechanism, and three external feet with rubber grommets to support the complete unit. The shell is usually penetrated by a high pressure gas discharge tube, and a low pressure return gas tube. For a typical low-side shell suction configuration, the discharge tube is normally sealed to the shell and connected to the internal mechanism discharge. The low pressure return gas tube is sealed to the compressor shell and discharges to the interior of the shell. The internal mechanism then takes its low side supply gas from the interior of the shell.