Title:
冷凍サイクル装置
Document Type and Number:
Japanese Patent JP4321095
Kind Code:
B2
Abstract:
In a refrigerant cycle apparatus, an energy-saving operation is performed by using a refrigerant which is used in a supercritical state. A refrigeration cycle apparatus is constituted by a main compressor (1), an expander (3), a sub compressor (2) independently placed in an upstream side of the main compressor, a use side heat exchanger (5), a heat source side heat exchanger (4) and the like. A refrigerant such as a carbon dioxide or the like which is used in a supercritical state is employed as the refrigerant. The sub compressor is driven by utilizing a recovered energy by the expanding device. Further, a refrigerant tank (19) is provided, and properly controls an amount of the refrigerant circulating in the refrigerant cycle.
Inventors:
Funakoshi Saho
Hirokatsu Kasogabe
Kazuhiro Endo
Kenji Tojo
Hiroaki Matsushima
Hirokatsu Kasogabe
Kazuhiro Endo
Kenji Tojo
Hiroaki Matsushima
Application Number:
JP2003104767A
Publication Date:
August 26, 2009
Filing Date:
April 09, 2003
Export Citation:
Assignee:
日立アプライアンス株式会社
株式会社日立製作所
株式会社日立製作所
International Classes:
F25B9/00; F25B1/10; F25B9/06; F25B13/00; F25B41/04; F25B45/00; F25B49/02
Domestic Patent References:
| JP57049766A | ||||
| JP11063687A | ||||
| JP9089388A | ||||
| JP2003074999A | ||||
| JP6034222A | ||||
| JP50033369U |
Attorney, Agent or Firm:
Manabu Inoue