Title:
ハイブリッドヒートポンプシステム
Document Type and Number:
Japanese Patent JP6842961
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To preferably prevent comfort from missing due to inflow of air conditioning air having relatively low-temperature into an indoor while preferably preventing frosting to an outdoor heat exchanger, in a heating operation under a low-outdoor temperature condition.SOLUTION: A hybrid heat pump system includes an operation control part S for running a fluid channel formation mechanism to execute defrosting operation of defrosting EHP outdoor heat exchanger Exo2 by circulating refrigerant at an outlet of an electric drive type compressor Cp2 to the EHP outdoor heat exchanger Exo2 when GHP refrigerant circulation state switching means Vfw1 and EHP refrigerant circulation state switching means Vfw2 are in a heating circulation switching state.SELECTED DRAWING: Figure 2
Inventors:
Toshinari Sakai
Norimichi Murai
Norimichi Murai
Application Number:
JP2017053333A
Publication Date:
March 17, 2021
Filing Date:
March 17, 2017
Export Citation:
Assignee:
OSAKA GAS CO.,LTD.
International Classes:
F25B47/02; F24F11/41; F24F11/42; F24F11/84; F25B1/00; F25B13/00; F25B27/00; F25B27/02
Domestic Patent References:
| JP2015117894A | ||||
| JP2015152246A | ||||
| JP2002243289A |
Foreign References:
| US20130104576 |
Attorney, Agent or Firm:
Patent business corporation r&c