Title:
AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/229864
Kind Code:
A1
Abstract:
This air conditioning device comprises: a primary circuit in which a compressor, a condenser, a limiting device, an evaporator, and an accumulator are sequentially connected, and in which a zeotropic mixture refrigerant containing a first refrigerant and a second refrigerant having a higher boiling point than the first refrigerant circulates; and a control device that controls the primary circuit. The primary circuit has a first regulating valve provided upstream of the accumulator, a second regulating valve provided downstream of the accumulator, and a bypass pipe that bypasses the accumulator. The control device adjusts the proportion of the first refrigerant in the zeotropic mixture refrigerant taken into the compressor by controlling the first regulating valve and the second regulating valve.
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Inventors:
OKAJIMA KEIGO (JP)
NAKAGAWA MASAHIKO (JP)
NAKAGAWA MASAHIKO (JP)
Application Number:
PCT/JP2017/021800
Publication Date:
December 20, 2018
Filing Date:
June 13, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00; F25B29/00; F25B43/00; F25B47/02
Foreign References:
| JP2009174800A | 2009-08-06 | |||
| JPH08145489A | 1996-06-07 | |||
| JP2001165518A | 2001-06-22 | |||
| JP2010002074A | 2010-01-07 | |||
| JP2000266415A | 2000-09-29 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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