To provide a refrigerant circuit system in which the volume of a plurality of accumulators provided in series and the size of an oil return hole are appropriately set so as to achieve both the prevention of liquid backflow and the prevention of oil discharge from a compressor caused by deteriorated oil return.
In the refrigerant circuit system, a first accumulator 18 and a second accumulator 19 are provided in series inside the refrigerant suction pipe 20B of the compressor 9 along a refrigerant circulation direction. The first accumulator 18 and the second accumulator 19 are adapted to satisfy V1 > V2, where V1 is a volume of the first accumulator 18 and V2 is a volume of the second accumulator 19. The first accumulator 18 and the second accumulator 19 are also adapted to satisfy A1 < A2, where A1 is an opening area of a first oil return hole 37 provided in a refrigerant exit pipe 36 of the first accumulator 18 and A2 is an opening area of a second oil return hole 41 provided in a refrigerant exit pipe 40 of the second accumulator 19.
OMURA MINEMASA
YOSHIDA SHIGERU
OKADA TAKUYA
WATANABE MASARU
TONOMURA MIGAKU
KIMATA HISAYUKI
HOTTA YOHEI
| JPH11281207A | 1999-10-15 | |||
| JP2009236397A | 2009-10-15 | |||
| JP2011047545A | 2011-03-10 | |||
| JPS6127074U | 1986-02-18 | |||
| JPS6155562A | 1986-03-20 | |||
| JPH0387575A | 1991-04-12 | |||
| JPH1114199A | 1999-01-22 | |||
| JPH07305921A | 1995-11-21 |
Kunio Ueda
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