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Title:
REFRIGERATING DEVICE
Document Type and Number:
Japanese Patent JP2007017094
Kind Code:
A
Abstract:

To provide a refrigerating device attaining stable heating operation by a noncondensing heating cycle.

The refrigerating device comprises hot gas by-pass piping 6 by-passing a condenser 13 and an electronic expansion valve 16 to lead hot gas into an evaporator 17; a capillary tube 8 for reducing the pressure of hot gas flowing through the hot gas by-pass piping 6, below a temperature saturation pressure in a temperature controlled space; and a hot gas solenoid valve 7 for opening/closing the hot gas by-pass piping 6 to make the flow of hot gas intermittent. A purge passage relatively smaller in diameter than refrigerant piping 5 for leading a refrigerant to the condenser 13, is formed with a high-pressure pressure control valve 20 so as to by-pass a condenser inlet solenoid valve 12 installed near the inlet of the refrigerant piping 5.


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Inventors:
KAI MASAKAZU
AOKI YASUTAKA
Application Number:
JP2005199874A
Publication Date:
January 25, 2007
Filing Date:
July 08, 2005
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F25B1/00; F25D11/00; F25D23/12
Domestic Patent References:
JPH0464879A1992-02-28
JP2005048981A2005-02-24
JPH03236545A1991-10-22
JPS61116974U1986-07-23
JP2001133077A2001-05-18
JPS5338046U1978-04-03
Attorney, Agent or Firm:
Noriharu Fujita
Kunio Ueda



 
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