AIR CONDITIONING DEVICE - MITSUBISHI ELECTRIC CORP

Title:

AIR CONDITIONING DEVICE

Document Type and Number:

WIPO Patent Application WO/2011/030418

Kind Code:

A1

Abstract:

An air conditioning device which consumes less energy. An air conditioning device (100) provided with a refrigerant circulation circuit (A) in which a heat source side refrigerant is circulated, a first heat medium flow path (Ba) to which a pump (21a) is connected and in which a heat medium such as water or an antifreeze solution is circulated, a first heat medium flow path (Bb) to which a pump (21b) is connected and in which a heat medium such as water or an antifreeze solution is circulated, and utilization heat exchangers (26) which are connected to the first heat medium flow paths (Ba, Bb). The first heat medium flow paths (Ba, Bb) and the suction side of a pump (21c) are connected to each other through a pump flow path switching device (24a), and the first heat medium flow paths (Ba, Bb) and the discharge side of the pump (21c) are connected to each other through a pump flow path switching device (24b). A first heat medium flow path (B) communicating with the pump (21c) is selected by controlling the degree of opening of the pump flow path switching devices (24a, 24b).

Inventors:

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

Application Number:

PCT/JP2009/065797

Publication Date:

March 17, 2011

Filing Date:

September 10, 2009

Export Citation:

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Assignee:

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

International Classes:

F24F11/02; F24F5/00; F25B1/00; F25B13/00

Foreign References:

JP2002106995A	2002-04-10
JP2004053069A	2004-02-19
JPH0317475A	1991-01-25
JP2003343936A	2003-12-03
JP2005140444A	2005-06-02
JPH05280818A	1993-10-29
JP2001289465A	2001-10-19
JP2003343936A	2003-12-03

Other References: