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1. (WO2018198164) AIR CONDITIONING DEVICE

Pub. No.:    WO/2018/198164    International Application No.:    PCT/JP2017/016186
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Tue Apr 25 01:59:59 CEST 2017
IPC: F25B 1/04
F25B 1/00
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: NISHIO, Jun
西尾 淳
TAKENAKA, Naofumi
竹中 直史
IKEDA, Soshi
池田 宗史
KAWAMURA, Raito
河村 雷人
NAKAO, Hideto
中尾 英人
ISHIMURA, Katsuhiro
石村 亮宗
Title: AIR CONDITIONING DEVICE
Abstract:
The compressor of this air conditioning device has: a scroll mechanism (101) having an orbiting scroll; an electromotive section (102) for revolving the orbiting scroll; a first space (107) provided between the scroll mechanism and the electromotive section; an annular second space (108) provided in the radially outer periphery of the scroll mechanism; a suction pipe (105) connected to the first space and sucking a refrigerant into the compressor; a communication passage (106) provided between the first space and the second space and conducting a refrigerant into the second space, the refrigerant having been sucked into the first space from the suction pipe; and a discharge pipe (114) for discharging a refrigerant to the outside of the compressor, the refrigerant having flowed from the second space into the scroll mechanism and having been compressed. A part of a refrigerant between a first expansion valve (4) and a second expansion valve (5) is injected simultaneously into the first space and the second space.