COMPRESSOR

WIPO Patent Application WO/2013/168430

A1

This compressor is provided with oil separation mechanism sections (40) which separate oil from a refrigerant gas discharged from a compression mechanism section (10), the oil separation mechanism sections (40) each having: a cylindrical space (41) for swirling the refrigerant gas; an inlet section (42) for allowing the refrigerant gas discharged from the compression mechanism section (10) to flow therefrom into the cylindrical space (41); a delivery opening (43) for delivering the refrigerant gas, from which oil has been separated, into one in-container space (31) from the cylindrical space (41); and a discharge opening (44) for discharging the separated oil and a part of the refrigerant gas from the cylindrical space (41) into the other in-container space (32). Also, if the amount of circulation under a rated system condition is G kg/h, the cross-sectional area of the opening of the inlet section (42) for forming the oil separation mechanism section (40) and leading to the cylindrical space (41) is E mm2, and the number of the oil separation mechanism sections is N, G/(E × N) is set in the range of 1 to 4, inclusive, and this makes an electric motor section (20) highly efficient, improves the volumetric efficiency, and reduces the amount of oil circulation.

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IMAI YUSUKE
KAWANO HIROYUKI
FUTAGAMI YOSHIYUKI
NAKAMOTO TATSUYA
SAKUDA ATSUSHI
MORIMOTO TAKASHI

PCT/JP2013/002986

November 14, 2013

May 09, 2013

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PANASONIC CORP (JP)

F04C18/02; F04C29/02

JP2008088929A	2008-04-17
JP2005180295A	2005-07-07

ABE, Shinichi et al. (JP)
Shin-ichi Abe (JP)

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