AIR CONDITIONER - HITACHI APPLIANCES INC

Title:

AIR CONDITIONER

Document Type and Number:

WIPO Patent Application WO/2013/118174

Kind Code:

A1

Abstract:

Provided is an air conditioner which comprises multiple outdoor units, the air conditioner being configured so that, with the use of a low cost configuration, required refrigeration machine oil is supplied to all the outdoor units through refrigerant piping and so that the air conditioner has increased reliability. An air conditioner is provided with multiple indoor units and with four outdoor units which are connected to the multiple indoor units through refrigerant piping. A line of first refrigerant piping leading from the multiple indoor units is branched into two lines of second refrigerant piping, each of the two lines of second refrigerant piping is branched into two lines of third refrigerant piping, and the four lines of third refrigerant piping are respectively connected to the four outdoor units.

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Inventors:

NAITO KOJI (JP)
YOSHIDA YASUTAKA (JP)
URATA KAZUMOTO (JP)
KAWAGUCHI HIROYUKI (JP)
FURUTA YUKI (JP)
TANI KAZUHIKO (JP)

Application Number:

PCT/JP2012/000848

Publication Date:

August 15, 2013

Filing Date:

February 09, 2012

Export Citation:

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Assignee:

HITACHI APPLIANCES INC (JP)
NAITO KOJI (JP)
YOSHIDA YASUTAKA (JP)
URATA KAZUMOTO (JP)
KAWAGUCHI HIROYUKI (JP)
FURUTA YUKI (JP)
TANI KAZUHIKO (JP)

International Classes:

F24F1/32; F24F1/28

Foreign References:

JP2011144941A	2011-07-28
JP2010164219A	2010-07-29
JP2012017888A	2012-01-26
JP2007139265A	2007-06-07
JPH0355471A	1991-03-11
JP2005345100A	2005-12-15
JP2002243314A	2002-08-28
JP2008128498A	2008-06-05

Other References: