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Title:
【発明の名称】アンモニアサイクルと炭酸ガスサイクルとを組み合わせたヒートポンプシステム
Document Type and Number:
Japanese Patent JP3458310
Kind Code:
B2
Abstract:
A heat pump system for cooling (refrigeration) or heating is provided by combination of natural media such as ammonia and CO2. The heat pump system (1) combines an ammonia cycle (2) and a CO2 cycle (3), and the CO2 medium in the CO2 cycle (3) is circulated, by natural circulation due to difference of fluid heads of CO2 medium in the cycle without incorporating a compressor, and by partial heating or cooling of the cycle. The structural elements of ammonia cycle (2) are placed away from the devices for the desired refrigeration and heating.

Inventors:
Hidetoshi Kaneo
Application Number:
JP2000601378A
Publication Date:
October 20, 2003
Filing Date:
September 30, 1999
Export Citation:
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Assignee:
Hachiyo Engineering Co., Ltd.
International Classes:
F25B25/00; F25B9/00; F25B23/00; (IPC1-7): F25B1/00
Domestic Patent References:
JPH1123079A1999-01-26
JPS6438558A1989-02-08
Attorney, Agent or Firm:
Takahiko Higashiyama