Expander-integrated compressor, refrigerator and operating method for refrigerator
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United States of America Patent
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May 15, 2018
Issued Date -
N/A
app pub date -
Oct 9, 2014
filing date -
Nov 11, 2013
priority date (Note) -
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Abstract
An expander-integrated compressor is provided and includes: a motor; a compressor connected to an output shaft of the motor; an expander connected to the output shaft of the motor; a non-contact bearing disposed between the compressor and the expander; a casing; and an extraction line being in communicated with a region between the compressor and the expander in the internal space of the casing and extracts, from the region, the leakage fluid from the compressor side toward the expander side in the casing and to send the leakage fluid to a fluid line connected to the intake side or the discharge side of the compressor outside the casing. The casing seals the region from outside of the casing, thus the flow of the at least a part of the leakage fluid through the extraction line is the only flow of fluid between the region and the outside of the casing.
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