ACCUMULATOR AND REFRIGERATION CYCLE DEVICE

WIPO Patent Application WO/2011/064813

A1

Disclosed are an accumulator and the like that can return oil without complicating circuit architecture or consuming energy. The disclosed accumulator (6) performs vapor-liquid separation and accumulates the liquid in order to supply a refrigerant in a vapor phase to a compressor (1) in a refrigeration cycle device. The accumulator is provided with: a vessel (A) for accumulating the liquid; an inflow pipe (B) via which a refrigerant, which circulates through a refrigeration circuit, flows into the vessel (A); a distribution coupling (G) for distributing, in a plurality of directions, the refrigerant which has flowed into the inflow pipe (B); a branching pipe (I) that leads the distributed refrigerant to the bottom of the vessel (A) such that the refrigerant agitates the liquid accumulated in the vessel (A); and an outflow pipe (C) that has an oil-return hole (D) out which the refrigerant flows along with refrigerant oil in the liquid accumulated in the vessel (A).

HATOMURA TAKESHI (JP)
YAMASHITA KOJI (JP)
MORIMOTO HIROYUKI (JP)
WAKAMOTO SHINICHI (JP)
SHIMOJI MIHOKO (JP)

PCT/JP2009/006331

June 03, 2011

November 25, 2009

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MITSUBISHI ELECTRIC CORP (JP)
HATOMURA TAKESHI (JP)
YAMASHITA KOJI (JP)
MORIMOTO HIROYUKI (JP)
WAKAMOTO SHINICHI (JP)
SHIMOJI MIHOKO (JP)

F25B43/00; F25B1/00; F25B43/02

JPH07189908A	1995-07-28
JPS503162U	1975-01-14
JP2007139250A	2007-06-07
JPH10141813A	1998-05-29
JP2003262418A	2003-09-19

KOBAYASHI, Hisao et al. (JP)
Hisao Kobayashi (JP)

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