REFRIGERATING CYCLE DEVICE USING EXPANDER - MATSUSHITA ELECTRIC IND CO LTD

Title:

REFRIGERATING CYCLE DEVICE USING EXPANDER

Document Type and Number:

Japanese Patent JP2008275209

Kind Code:

A

Abstract:

To provide a refrigerating cycle device using an expander and having high efficiency and reliability.

This refrigerating cycle device is provided with a refrigerating cycle composed of a compressor 501 compressing a refrigerant, a radiator 502 cooling the compressed refrigerant, the expander 503 expanding the refrigerant, and an evaporator 504 evaporating the expanded refrigerant, and a control circuit composed of a generator 507 connected with the expander 503, and a variable speed converter 508 converting AC power output by the generator 507, outputting DC power, and driving and controlling the generator 507. Abnormal rise of a voltage value of a DC power part is suppressed by setting a rotational frequency of an air distribution fan 522 high, when generator power exceeds motor power, thus the refrigerating cycle device of high reliability and efficiency free from breakage of components, can be provided.

More Like This:

JP4039024	Refrigerator
JP6306821	Rankine cycle engine
WO/2003/074950	TURBO-REFRIGERATING APPARATUS

Inventors:

MATSUYAMA TETSUYA
MATSUI KEIZO

Application Number:

JP2007116921A

Publication Date:

November 13, 2008

Filing Date:

April 26, 2007

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MATSUSHITA ELECTRIC IND CO LTD

International Classes:

F25B11/02; F25B1/00; F25B49/02

Attorney, Agent or Firm:

Fumio Iwahashi
Hiroki Naito
Daisuke Nagano

Previous Patent: PROTECTIVE MEMBER AND PROTECTIVE DEVICE USING THE SAME

Next Patent: VAPOR COMPRESSION-TYPE REFRIGERATING CYCLE