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Title:
圧力制御弁と蒸気圧縮式冷凍サイクル
Document Type and Number:
Japanese Patent JP4179231
Kind Code:
B2
Abstract:
A pressure control valve includes a valve portion disposed in a passage from a refrigerant radiator to a suction port of a refrigerant compressor in a vapor-compression refrigerant cycle system. The valve portion controls a refrigerant pressure at an outlet of the refrigerant radiator in accordance with a refrigerant temperature at the outlet of the refrigerant radiator, and the valve portion has a control pressure characteristic in which a pressure change relative to a temperature is smaller than that of the refrigerant. Furthermore, the valve portion may have a fluid passage through which refrigerant flows even when a valve port of the valve portion is closed by a valve body. Accordingly, when the refrigerant radiator is used for heating a fluid, heating capacity for heating the fluid can be rapidly increased at a heating start time.

Inventors:
太田 宏巳
Application Number:
JP2004171746A
Publication Date:
November 12, 2008
Filing Date:
June 09, 2004
Export Citation:
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Assignee:
株式会社デンソー
International Classes:
F25B1/00; B60H1/00; F25B7/00; F25B9/00; F25B41/04; F25B41/06; F25B49/02; F25B40/00
Domestic Patent References:
JP2001194017A
JP9264622A
JP2002162133A
JP10325480A
JP2000146329A
JP2002174471A
JP2003279177A
Attorney, Agent or Firm:
伊藤 高順
久保 貴則
永井 聡
碓氷 裕彦