Refrigerating compressor

Details Refrigerating compressor Refrigerating compressor

2011-04-12

2011-04-12

Kramer, Devon C (Department: 3746)

Pumps

With muffler acting on pump fluid

Reexamination Certificate

active

07922460

ABSTRACT:
A refrigerating compressor includes a compressing element and a hermetic container accommodating the compressing element, which includes a compressing chamber where refrigerant gas is compressed, and a suction muffler (118) having a sound deadening space (119) and communicating with the compressing chamber. The suction muffler (118) includes a tail tube (121) having a first end open into the hermetic container and a second end open into the sound deadening space (119), and a resonating chamber (122) formed attached to the tail tube (121) and having a resonance frequency substantially agreeing with a specific resonance frequency of the hermetic container. This structure allows the resonating chamber (122) to deaden the noises coming from vibration sounds of a suction valve or ripple sounds of refrigerant gas.

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