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Title:
空気調和機の起動制御システム及びその制御方法
Document Type and Number:
Japanese Patent JP3574447
Kind Code:
B2
Abstract:
A system includes a compressor and an expansion valve. The exit side of the compressor and the inlet side of the expansion valve are connected by a high pressure conduit, and the exit side of the expansion valve and the inlet side of the compressor are connected by a low pressure conduit. A bypass conduit is connected to the high pressure conduit and the low pressure conduit and a flow rate regulating valve is mounted on the bypass conduit. A control unit controls the expansion valve and the flow rate regulating valve to perform two starting operations in such a way that the flow rate regulating valve is open and the expansion valve is closed in a first starting operation, and the flow rate regulating valve is closed and the electronic expansion valve is open to a predetermined extent in a second starting operation. The compressor is controlled by a duty control signal having a period shorter than a period during a normal operation for starting operations.

Inventors:
June Ki Moon
Yang Man Kim
Jun Min Lee
Choi Myung Moon
John Yup Kim
Il Yong Cho
Application Number:
JP2002502363A
Publication Date:
October 06, 2004
Filing Date:
January 05, 2001
Export Citation:
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Assignee:
Samsung Electronics Company Limited
International Classes:
F24F11/02; F04C23/00; F04C27/00; F04C28/06; F04C28/26; F24F11/00; F25B1/00; F25B41/04; F25B41/06; F25B49/02; F04C18/02; F25B1/04; F25B5/02; (IPC1-7): F25B1/00
Domestic Patent References:
JP6341720A
JP61280350A
JP8334094A
JP10213355A
JP8219566A
JP2230056A
JP11351681A
JP62201354U
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe