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Patent Searching and Data


Title:
REFRIGERATING DEVICE
Document Type and Number:
Japanese Patent JP2010216678
Kind Code:
A
Abstract:

To increase power recovered by an expansion device, in a refrigerating device including the expansion device for generating power by expanding a refrigerant.

In the refrigerating device (10) including a refrigerant circuit (11) to which the expansion device (31) capable of controlling the rotating speed independently of the rotating speed of a compressor (21) is connected, a controller (40) for controlling the rotating speed of the expansion device (31) so that the rotating speed increases as a circulation amount of a refrigerant in the refrigerant circuit (11) increases is provided. The controller (40) controls the rotating speed of the expansion device (31) so as not to exceed peak rotating speed maximizing recovery power recovered by the expansion device (31).


Inventors:
UKIBUNE MASANORI
OKAMOTO MASAKAZU
KUMAKURA EIJI
Application Number:
JP2009060984A
Publication Date:
September 30, 2010
Filing Date:
March 13, 2009
Export Citation:
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Assignee:
DAIKIN IND LTD
International Classes:
F25B11/02
Domestic Patent References:
JP2008208758A2008-09-11
JP2007232322A2007-09-13
JP2008164267A2008-07-17
JP2007212022A2007-08-23
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Atsushi Fujita
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura