REFRIGERANT CYCLE DEVICE - SANYO ELECTRIC CO

Title:

REFRIGERANT CYCLE DEVICE

Document Type and Number:

Japanese Patent JP2004293813

Kind Code:

A

Abstract:

To provide a refrigerant cycle device capable of accurately detecting pressure inversion phenomenon generated in a compression element of a compressor of multistage compression type at low cost.

This refrigerant cycle device is provided with a temperature sensor 103 detecting temperature of discharged refrigerant of a first rotary compression element 32 of the rotary compressor 10 and a temperature sensor 104 detecting temperature of discharged refrigerant of a second rotary compression element 34. A controller 102 detects inversion of discharged refrigerant pressure of the first rotary compression element 32 and discharged refrigerant pressure of the second rotary compression element 34 based on outputs of both temperature sensors 103, 104.

Inventors:

EBARA TOSHIYUKI
KUBO MAMORU
OTAGAKI KAZUHISA

Application Number:

JP2003083052A

Publication Date:

October 21, 2004

Filing Date:

March 25, 2003

Export Citation:

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Assignee:

SANYO ELECTRIC CO

International Classes:

F04C23/00; F04C18/356; F04C28/08; F04C28/28; F25B1/00; F25B1/10; F25B9/00; F25B40/00; (IPC1-7): F25B1/10; F04C18/356; F04C23/00; F25B1/00

Attorney, Agent or Firm:

Kei Amekasa

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