To provide a two-stage compressor and a two-stage compression system capable of suppressing blade jumping and securing a sufficient region of efficient operation, even when a rotary compressor of an intermediate pressure housing type is used as a lower-stage compressor.
In a two-stage compressor of an intermediate pressure housing type, a lower-stage compressor and a higher-stage compressor are provided in a housing, and an intermediate pressure refrigerant is compressed in the lower-stage compressor to be discharged into the housing and then is sucked up by the higher-stage compressor to be compressed into higher pressure. The lower-stage compressor is a rotary type compressor that reciprocates following the rotation of a rotor and is provided with a blade partitioning a cylinder chamber into a suction side and a compression side, and the blade is made of material having a density of 3 g/cm3 or less in order to reduce the inertial force of the blade in response to the reduction of the back pressure acting on the back surface thereof.
KIMATA HISAYUKI
UNO MASANARI
GOTO TOSHIYUKI
SATO SO
| JP2008190377A | 2008-08-21 | |||
| JP2008286037A | 2008-11-27 | |||
| JPS58154896U | 1983-10-17 | |||
| JPH02104996A | 1990-04-17 | |||
| JPS63230983A | 1988-09-27 | |||
| JP2009222033A | 2009-10-01 | |||
| JPS61155687A | 1986-07-15 | |||
| JP2008196343A | 2008-08-28 |
| WO2012086518A1 | 2012-06-28 |
Kunio Ueda
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