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Patent Searching and Data


Title:
REFRIGERATING CYCLE DEVICE AND ITS OPERATION METHOD
Document Type and Number:
Japanese Patent JP2007147179
Kind Code:
A
Abstract:

To positively secure a certain amount of oil in an expander by starting an operation of a compressor after the excess oil remaining in the expander is discharged to a specific amount by operating the expander at a low rotational frequency in starting a refrigerating cycle.

This refrigerating cycle device can surely discharge the oil when the excess oil stays in the expander 103, by starting the operation of the compressor after an operation of low rotational frequency of the expander 103 is performed for a specific time, and supply the oil into the expander 103 when the shortage of oil staying in the expander 103 is found, thus the reliability of the expander 103 can be secured.


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Inventors:
KUSUMARU YUICHI
KOMORI AKIRA
HONMA MASAYA
Application Number:
JP2005343253A
Publication Date:
June 14, 2007
Filing Date:
November 29, 2005
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
F25B1/00; F25B11/02
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano