REFRIGERATION CYCLE DEVICE AND REFRIGERANT CIRCULATION METHOD

Title:

REFRIGERATION CYCLE DEVICE AND REFRIGERANT CIRCULATION METHOD

Document Type and Number:

WIPO Patent Application WO/2011/135876

Kind Code:

A1

Abstract:

Disclosed is a refrigeration cycle device that is capable of reliably returning refrigerating machine oil to a compressor without being limited by the miscibility or immiscibility of the oil with a refrigerant. The refrigeration cycle device (1010) is equipped with: a first refrigerant course in which the compressor (101), a condenser (103), a first flow control valve (104), a refrigerant storage container (105), a second flow control valve (106), and a first evaporator (107) are connected in that order by piping and in which the refrigerant exit of the first evaporator (107) is connected to the suctioned refrigerant inlet (1092) of an ejector (109) by piping; a second refrigerant course in which the compressor (101) and a second evaporator (110) are connected in that order by piping and in which the refrigerant entrance of the second evaporator (110) is connected to the mixed refrigerant outlet (1093) of the ejector (109) by piping; and a third refrigerant course that diverges from the middle of the piping connecting the refrigerant exit of the condenser (103) and the first flow control valve (104) and in which a third flow control valve (108) and the driving refrigerant inlet (1091) of the ejector (109) are connected in that order by piping.

Inventors:

HIGASHIIUE SHINYA (JP)
NOMOTO SO (JP)
MINAMISAKO HIROKAZU (JP)

Application Number:

PCT/JP2011/051468

Publication Date:

November 03, 2011

Filing Date:

January 26, 2011

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)
HIGASHIIUE SHINYA (JP)
NOMOTO SO (JP)
MINAMISAKO HIROKAZU (JP)

International Classes:

F25B1/00; F25B5/04; F25B43/00

Foreign References:

JP2007078340A	2007-03-29
JPH03282159A	1991-12-12
JP2001174091A	2001-06-29
JP2002081803A	2002-03-22
JP2009133613A	2009-06-18
JP2003279177A	2003-10-02
JPH04110575A	1992-04-13
JPH1194380A	1999-04-09
JP2005308380A	2005-11-04
JP2010002134A	2010-01-07
JP2007263440A	2007-10-11
JP2002130874A	2002-05-09
JP2002130874A	2002-05-09

Other References: