Hermetic compressor

Details Hermetic compressor Hermetic compressor

2011-01-11

2011-01-11

Kramer, Devon C (Department: 3746)

Pumps

Motor driven

Electric or magnetic motor

C310S090000, C310S156530, C310S216016, C310S087000

Reexamination Certificate

active

07866957

ABSTRACT:
A hermetic compressor has a bipolar permanent magnet motor where permanent magnet is disposed in rotor core. A hollow bore is disposed at the end on the compressing element side of the rotor core, and main bearing extends into the bore. The thickness of the rotor core is longer than that of the stator core, thereby widening the magnetic path of the rotor core. The magnetic flux amount generated in the rotor core, which is conventionally insufficient due to existence of the bore, increases, the loss decreases, and the efficiency increases.

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English translation of Chinese Office Action dated Sep. 28, 2007.
International Search Report for application No. PCT/JP2005/021931 dated Jan. 26, 2006.

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