Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2008/047784
Kind Code:
A1
Abstract:
An air conditioner in which, to switch each indoor heat exchanger (41) from cooling operation
to heating operation, a controller (50) slightly opens a first control valve
(31) after closing a second control valve (32) and then fully opens the first control
valve (31) after a utilization-side heat exchanger (41) is equalized in pressure
with high-pressure gas piping (11). Also, to switch each indoor heat exchanger
(41) from heating operation to cooling operation, the controller (50) slightly
opens the second control valve (32) after closing the first control valve (31)
and then fully opens the second control valve (32) after the utilization-side heat
exchanger (41) is equalized in pressure with low-pressure gas piping (12).
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Inventors:
KAWANO SATOSHI (JP)
MATSUOKA SHINYA (JP)
EGUCHI AKIHIRO (JP)
KAMITANI SHIGEKI (JP)
MATSUOKA SHINYA (JP)
EGUCHI AKIHIRO (JP)
KAMITANI SHIGEKI (JP)
Application Number:
PCT/JP2007/070152
Publication Date:
April 24, 2008
Filing Date:
October 16, 2007
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
KAWANO SATOSHI (JP)
MATSUOKA SHINYA (JP)
EGUCHI AKIHIRO (JP)
KAMITANI SHIGEKI (JP)
KAWANO SATOSHI (JP)
MATSUOKA SHINYA (JP)
EGUCHI AKIHIRO (JP)
KAMITANI SHIGEKI (JP)
International Classes:
F25B13/00; F24F11/02
Foreign References:
| JPH07180927A | 1995-07-18 | |||
| JPH03260561A | 1991-11-20 | |||
| JPH0355475A | 1991-03-11 | |||
| JP2004144428A | 2004-05-20 | |||
| JPH0293261A | 1990-04-04 | |||
| JPH0942804A | 1997-02-14 |
Attorney, Agent or Firm:
MAEDA, Hiroshi et al. (5-7 Hommachi 2-chome, Chuo-ku, Osaka-sh, Osaka 53, JP)
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