AIR CONDITIONING DEVICE - MITSUBISHI ELECTRIC CORP

Title:

AIR CONDITIONING DEVICE

Document Type and Number:

WIPO Patent Application WO/2011/117922

Kind Code:

A1

Abstract:

Disclosed is an air conditioning device wherein loud refrigerant noise generated when an operating mode is changed has been reduced. When the operation is changed from a first operating mode to a second operating mode, the air conditioning device (100) controls one or all of a plurality of restriction devices in the direction of reducing the pressure difference in heat source-side refrigerants provided to the front and rear of the plurality of restriction devices to below the operation status in the first operating mode; controls one or all of a plurality of second channel switching devices; controls one or all first switchgear devices and second switchgear devices; and then changes to the second operating mode after the passage of a predetermined time.

Inventors:

MORIMOTO HIROYUKI (JP)
YAMASHITA KOJI (JP)
MOTOMURA YUJI (JP)

Application Number:

PCT/JP2010/002104

Publication Date:

September 29, 2011

Filing Date:

March 25, 2010

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)
MORIMOTO HIROYUKI (JP)
YAMASHITA KOJI (JP)
MOTOMURA YUJI (JP)

International Classes:

F25B1/00

Domestic Patent References:

WO2009133640A1	2009-11-05
WO2005095868A1	2005-10-13

Foreign References:

JP2003240391A	2003-08-27
JP2005140444A	2005-06-02
JPH05280818A	1993-10-29
JP2001289465A	2001-10-19
JP2003343936A	2003-12-03

Other References: