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1. 发明申请

US20160265821A1 AIR CONDITIONING APPARATUS 审中-公开
标题翻译：空调设备
公开(公告)号：US20160265821A1
公开(公告)日：2016-09-15
申请号：US15064193
申请日：2016-03-08
申请人： FUJITSU GENERAL LIMITED
发明人： Takashi KIMURA , Takahiro MATSUNAGA , Makoto SHIMOTANI
IPC分类号： F25B31/00 , F24F1/68 , F25B43/02 , F25B13/00 , F25B41/04
CPC分类号： F25B31/004 , F24F1/68 , F25B13/00 , F25B41/046 , F25B43/02 , F25B2313/0253
摘要： In an air conditioning apparatus, when the amounts of refrigerant oils retained in a first compressor and a second compressor are increased and oil levels in the first compressor and the second compressor reach a first oil outflow part and a second oil outflow part, the refrigerant oils subsequently sucked into the first compressor and the second compressor flow out of the first oil outflow part and the second oil outflow part to a first oil outflow pipe and a second oil outflow pipe, and flow from the first oil outflow pipe and the second oil outflow pipe to a refrigerant outflow pipe. The refrigerant oils flowing in the refrigerant outflow pipe from the first and second compressor through the first and second oil outflow pipe flow out of an outdoor unit through a four-way valve, and circulate through a refrigerant circuit together with refrigerants.
摘要翻译：在空调装置中，当保持在第一压缩机和第二压缩机中的制冷剂油的量增加并且第一压缩机和第二压缩机中的油位到达第一排油部和第二排油部时，制冷剂油随后被吸入第一压缩机，第二压缩机从第一出油部分和第二出油部分流出到第一出油管和第二出油管，并从第一出油管和第二出油口流出管道到制冷剂流出管道。从制冷剂流出管流出的制冷剂油通过第一和第二排油管从第一和第二压缩机流出，通过四通阀从室外单元流出，并与制冷剂一起循环通过制冷剂回路。

2. 发明申请

US20160084535A1 OUTDOOR UNIT OF AIR CONDITIONER AND AIR CONDITIONER 有权
标题翻译：空调和空调室外单元
公开(公告)号：US20160084535A1
公开(公告)日：2016-03-24
申请号：US14681299
申请日：2015-04-08
申请人： FUJITSU GENERAL LIMITED
发明人： Kotaro TOYA , Makoto SHIMOTANI , Hideya TAMURA , Takahiro MATSUNAGA , Shinju WATANABE , Koji OGATA , Masaki ARAI , Yasuhiro OKA , Ken NAKASHIMA , Toshihiro TAKAHASHI , Masakazu SATO
IPC分类号： F25B5/04
CPC分类号： F25B5/04 , F25B13/00 , F25B2313/006 , F25B2313/0231 , F25B2313/0233 , F25B2313/0252 , F25B2313/0253 , F25B2313/02742 , F25B2313/029
摘要： An outdoor unit of an air conditioner coupled to an indoor unit by a liquid pipe and a gas pipe, includes: a compressor; an outdoor heat exchanger; a discharge pipe coupled to a refrigerant discharge side of the compressor; an intake pipe coupled to a refrigerant intake side of the compressor; an outdoor-unit high-pressure gas pipe coupled to the discharge pipe; an outdoor-unit low-pressure gas pipe coupled to the intake pipe; an outdoor-unit liquid pipe that couples a first refrigerant entry/exit opening of the outdoor heat exchanger and the liquid pipe together; a bypass pipe coupled to the outdoor-unit liquid pipe; a first flow-passage switcher coupled to a second refrigerant entry/exit opening of the outdoor heat exchanger, the discharge pipe, the intake pipe, and the bypass pipe; and a second flow-passage switcher coupled to the gas pipe, the outdoor-unit high-pressure gas pipe, and the outdoor-unit low-pressure gas pipe.
摘要翻译：通过液体管道和气体管道连接到室内机的空调的室外单元包括：压缩机; 室外热交换器; 排出管，其联接到所述压缩机的制冷剂排出侧; 连接到所述压缩机的制冷剂吸入侧的进气管; 联接到排出管的室外单元高压气体管; 联接到进气管的室外单元低压气体管; 室外单元液体管，其将室外热交换器的第一制冷剂入口/出口与液体管连接在一起; 连接到室外单元液体管的旁通管; 与室外热交换器的第二制冷剂入口/出口连接的第一流路切换器，排出管，进气管和旁通管; 以及连接到气体管，室外单元高压气体管道和室外单元低压气体管道的第二流动通道切换器。

3. 发明申请

US20170198943A1 AIR CONDITIONER 审中-公开
公开(公告)号：US20170198943A1
公开(公告)日：2017-07-13
申请号：US15277705
申请日：2016-09-27
申请人： FUJITSU GENERAL LIMITED
发明人： Yasuhiro OKA , Satoshi TOMIOKA , Makoto SHIMOTANI , Takahiro MATSUNAGA
IPC分类号： F25B13/00 , F25B49/02
CPC分类号： F25B13/00 , F25B49/02 , F25B2313/0233 , F25B2313/02334 , F25B2313/0292 , F25B2600/19 , F25B2600/2513 , F25B2700/1931 , F25B2700/1933 , F25B2700/21151 , F25B2700/21152 , F25B2700/21163 , F25B2700/21175
摘要： When a refrigerant amount balance control is executed, in indoor units where the refrigerant supercooling degree is lower than an average refrigerant supercooling degree, the refrigerant pressure on a downstream side of indoor expansion valves decreases since the degrees of opening of the valves are decreased. On the other hand, in an indoor unit where the refrigerant supercooling degree is higher than the average refrigerant supercooling degree, although the degrees of opening of the valves are made high, the refrigerant pressure on the downstream side of the valves decreases and this decreases the refrigerant pressure on the downstream side of the indoor expansion valve, so that the difference in pressure between on the upstream side and on the downstream side of the indoor expansion valve increases and the liquid refrigerant staying at an indoor heat exchanger of the indoor unit consequently flows out into a liquid pipe.

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