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Title:
REFRIGERANT CIRCUIT
Document Type and Number:
Japanese Patent JP2008286452
Kind Code:
A
Abstract:

To provide a refrigerant circuit comprising a function for suppressing excess expansion phenomenon or insufficient expansion phenomenon of a refrigerant in an expander, and comprising a multi-directional valve capable of simplifying a piping system and a control system.

The multi-directional valve 5 composed of a casing and a slidable valve element, and comprising eight ports, a throttle function and a bypass passage, is connected with the refrigerant circuit composed of a compressor 1, an outdoor heat exchanger 2, the expander 3 and an indoor heat exchanger 4, thus the piping system and the control system of the refrigerant circuit performing a heating/cooling operation can be simplified. Further the throttle function copes with insufficient expansion phenomenon when it occurs in the expander, and a circulation flow rate of the refrigerant circuit can be adjusted by using the bypass function.


Inventors:
SAKURAGI ATSUSHI
OSHITTO KUMAR DOTTO
Application Number:
JP2007130743A
Publication Date:
November 27, 2008
Filing Date:
May 16, 2007
Export Citation:
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Assignee:
FUJITSU GENERAL LTD
International Classes:
F25B41/04; F25B13/00; F25B41/06
Domestic Patent References:
JP2003139429A2003-05-14
JPS63308278A1988-12-15
JPH07324844A1995-12-12
JPH11325634A1999-11-26
JP2002022315A2002-01-23