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Title:
AIR CONDITIONING DEVICE
Document Type and Number:
Japanese Patent JP2010203733
Kind Code:
A
Abstract:

To provide an air conditioning device capable of securing an oil quantity of each outdoor unit at a specific quantity or larger by an inexpensive constitution without using an oil equalization pipe.

In the air conditioning device constituted by connecting the plurality of outdoor units 1a, 1b, an accumulator 8a of the outdoor unit 1a and an accumulator 8b of the outdoor unit 1b have oil return holes 15, 16 at a lower section and an intermediate section of a lead-out pipe 14 in a container 18 as second oil flow rate adjusting mechanisms. An oil flow rate of the lead-out pipe 14 is made to be not larger than that of the oil flowing into the container 18 from an oil separator in the case that a height of a liquid level in the container 18 is lower than that of the second oil return hole 16, on the other hand, an oil flow rate of the lead-out pipe 14 is larger than the flow rate of the oil flowing into the container 18 from the oil separator in the case that the height of the liquid level in the container 18 is set above the oil return hole 16.


Inventors:
URATA KAZUMIKI
YOSHIDA YASUTAKA
NAITO KOJI
TEZUKA JUNICHIRO
Application Number:
JP2009052359A
Publication Date:
September 16, 2010
Filing Date:
March 05, 2009
Export Citation:
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Assignee:
HITACHI APPLIANCES INC
International Classes:
F25B1/00; F25B43/00
Domestic Patent References:
JPH03236568A1991-10-22
JP2000146324A2000-05-26
JP2007101127A2007-04-19
JP2008249259A2008-10-16
JP2002195702A2002-07-10
JP2007009922A2007-01-18
JPS5860172U1983-04-22
JPH01120065U1989-08-15
JP2004353904A2004-12-16
JPH03236568A1991-10-22
JP2000146324A2000-05-26
JP2007101127A2007-04-19
JP2005121361A2005-05-12
Attorney, Agent or Firm:
Kasuga Toshiaki



 
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