Hermetic-type compressor

Details Hermetic-type compressor Hermetic-type compressor

2004-10-12

2010-11-16

Kramer, Devon C (Department: 3746)

Pumps

Motor driven

Electric or magnetic motor

C417S902000, C184S006600

Reexamination Certificate

active

07832994

ABSTRACT:
A hermetic-type compressor according to the present invention has a viscous pump part by combining a spiral groove formed on the outer periphery of a main shaft with the inner periphery of a main shaft bearing, and at least one sliding section being in a sliding engagement with the main shaft bearing and at least one non-contact sliding-section having a predetermined gap with the main shaft bearing are formed on the face at the outer periphery of the main shaft opposing to the main shaft bearing where the lower end of the groove is located at the non-contact sliding-section.

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