REFRIGERATION CYCLE DEVICE - MITSUBISHI ELECTRIC CORP

Title:

REFRIGERATION CYCLE DEVICE

Document Type and Number:

WIPO Patent Application WO/2015/059814

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide a refrigeration cycle device that does not cause capacity imbalance between branching units and does not cause refrigerant circuit control failure. At least one of a plurality of branching units (1a, 1b) is a first branching unit (1a) in which the pressure loss while refrigerant is flowing in high pressure refrigerant piping (2a) between a heating source (100) and the branching units (1a, 1b) is the minimum. At least one other of the plurality of branching units (1a, 1b) is a second branching unit (1b) in which the pressure loss while refrigerant is flowing in the high pressure refrigerant piping (2a) between the heating source (100) and the branching units (1a, 1b) is the maximum. The opening degree of a throttling device (8a) is controlled so that the pressure difference between the refrigerant pressure detected by a high pressure detector (PS1) [1a] in the first branching unit (1a) and the refrigerant pressure detected by an intermediate pressure detector (PS2) [1a] is no less than a default value (ΔPHM).

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Inventors:

TANAKA KOSUKE (JP)
MOTOMURA YUJI (JP)

Application Number:

PCT/JP2013/078942

Publication Date:

April 30, 2015

Filing Date:

October 25, 2013

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

F25B13/00; F24F11/02

Domestic Patent References:

WO2012042573A1	2012-04-05
WO2011064827A1	2011-06-03
WO2011052055A1	2011-05-05
WO2010050003A1	2010-05-06
WO2011052055A1	2011-05-05
WO2011064827A1	2011-06-03

Foreign References:

JPH05172431A	1993-07-09
JP2003130482A	2003-05-08

Other References: