AIR-CONDITIONING UNIT AND AIR-CONDITIONING UNIT FOR RAILWAY VEHICLE

Title:

AIR-CONDITIONING UNIT AND AIR-CONDITIONING UNIT FOR RAILWAY VEHICLE

Document Type and Number:

WIPO Patent Application WO/2013/114461

Kind Code:

A1

Abstract:

The air-conditioning unit according to the present invention comprises a check valve (2) provided between a four-way valve (3) and the discharge side of a compressor (1); a first electromagnetic valve (6) which is provided between an expansion means (5) and a room-internal heat exchanger (7) and can be controlled to open and close; and a control unit (9) for switching the four-way valve (3) and switching opening and closing of the first electromagnetic valve (6). When stopping a heating operation, the control unit (9) switches the four-way valve (3) connection from heating operation to cooling operation, closes the first electromagnetic valve (6) and then stops the compressor (1).

Inventors:

MIZOBATA JUNPEI (JP)
SHINGU WAHEI (JP)
YANO KENJI (JP)
NAGATA ATSUSHI (JP)

Application Number:

PCT/JP2012/000700

Publication Date:

August 08, 2013

Filing Date:

February 02, 2012

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)
MIZOBATA JUNPEI (JP)
SHINGU WAHEI (JP)
YANO KENJI (JP)
NAGATA ATSUSHI (JP)

International Classes:

F25B13/00; F25B1/00

Foreign References:

JPS62233655A	1987-10-14
JP2008534911A	2008-08-28
JP2008164227A	2008-07-17
JP2011247489A	2011-12-08
JP2000274745A	2000-10-06
JPS62228846A	1987-10-07
JPH08166171A	1996-06-25
JP2001089737A	2001-04-03
JPS626716A	1987-01-13

Other References: