To provide a refrigerating cycle device, wherein a plurality of high pressure shell type compressors are connected in parallel to one another, for securing the reliability and performance of the compressors by constructing a refrigerant circuit with no specific control or oil level detecting means to stably and properly hold refrigerant oil relating the reliability and performance of the compressors in the compressors.
The refrigerating cycle device, wherein the plurality of high pressure shell type compressors are connected in parallel to one another in the refrigerant circuit, comprises oil discharge plugs 6a, 6b, 6c opening to compressor oil reservoirs 5a, 5b, 5c of the individual compressors 1a, 1b, 1c, oil discharge pipes 7a, 7b, 7c connected to the ends of the oil discharge plugs, respectively, first throttle mechanisms 9a, 9b, 9c provided in the oil discharge pipes, respectively, a common oil discharge pipe 12 to which the other ends of the oil discharge pipes are collectively connected, an oil storage tank 13 to which the end of the common oil discharge pipe is connected, an oil supply pipe 15 connected at both ends to the lower part of the oil storage tank and to a common suction pipe 11 connected to the compressors, and a second throttle mechanism 14 provided in the oil supply pipe.
SAITO MAKOTO
NANATANE TETSUJI
| JPS60178377A | 1985-09-12 | |||
| JP2004301461A | 2004-10-28 | |||
| JP2001324230A | 2001-11-22 | |||
| JP2001132645A | 2001-05-18 | |||
| JP2003130474A | 2003-05-08 | |||
| JPH11311456A | 1999-11-09 | |||
| JP2000088368A | 2000-03-31 |
| WO2004076945A1 | 2004-09-10 |
Kiyoshi Yasushima
Souji Sasaki
Noboru Omura
Takanashi Norio
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