| 摘要 |
A hermetic compressor housing formed from sheet metal has two housing halves that are joined from a generally ellipsoidal inner surface having a maximum radius of curvature of about one order of magnitute greater than the minimum radius of curvature, and deviating from the generally ellipsoidal shape only where necessary for supporting a compressor-motor assembly therein and for joining the housing halves. This provides a housing of relatively uniform rigidity to reduce the radiated sound level. In one specific embodiment, all of the audible, natural resonant frequencies of the housing are above 3500 Hz.
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