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1. 发明专利

JP2004116930A Gas heat pump type air conditioner 审中-公开
标题翻译：气体热泵型空调
公开(公告)号：JP2004116930A
公开(公告)日：2004-04-15
申请号：JP2002282753
申请日：2002-09-27
申请人： Nippon Lp Gas Rengokai , Osaka Gas Co Ltd , Sanyo Electric Air Conditioning Co Ltd , Sanyo Electric Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 三洋電機株式会社 , 三洋電機空調株式会社 , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 社団法人日本エルピーガス連合会
发明人： YOKOYAMA TAKESHI , INAMURA TAKEYA , TSURUOKA HIROSHI , TATE SUKENARI , KISHI HIROAKI , KAWAI HIDEKAZU , TSUNO KATSUYUKI , MOCHIZUKI TAKASHI
IPC分类号： F25B1/00 , F25B13/00 , F25B27/00 , F25B27/02
CPC分类号： Y02A30/274 , Y02B30/52 , Y02P80/152
摘要： PROBLEM TO BE SOLVED: To reduce power of a gas engine for driving a compressor by driving a refrigerant pump for circulating a refrigerant. SOLUTION: This gas heat pump type air conditioner 10 is so structured that a refrigeration cycle is composed by sequentially connecting the compressor 16, an outdoor heat exchanger 19, an outdoor expansion valve 24, and indoor heat exchangers 21A, 21B and 21C; and the compressor is driven by the gas engine 30. In exhaust heat recovery system piping 41 starting from the exit side in a heating operation of the indoor heat exchangers, bypassing the outdoor expansion valve, the outdoor heat exchanger and the compressor, and reaching the entrance side in the heating operation of the indoor heat exchangers, an overcooling heat exchanger 42 for bringing a liquid refrigerant into an overcooled state, the refrigerant pump 43 for circulating the liquid refrigerant, and an exhaust heat recovery heat exchanger 3 for recovering the exhaust heat of the gas engine to evaporate the liquid refrigerant by imparting the heat to it are sequentially installed. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：通过驱动用于循环制冷剂的制冷剂泵来减少用于驱动压缩机的燃气发动机的功率。解决方案：该气体热泵式空调机10的结构是，通过依次连接压缩机16，室外热交换器19，室外膨胀阀24和室内热交换器21A，21B，21C构成制冷循环 ; 压缩机由气体发动机30驱动。在室内热交换器的制热运转中，从出口侧开始的排气热回收系统配管41，绕过室外膨胀阀，室外热交换器和压缩机，达到室内热交换器的制热运转的入口侧，使液体制冷剂成为过冷却状态的过冷却热交换器42，使液体制冷剂循环的制冷剂泵43，以及用于回收废热的排气热回收热交换器3 的气体发动机通过赋予液体制冷剂而被蒸发而依次安装。版权所有（C）2004，JPO

2. 发明专利

JP2004116931A Gas heat pump type refrigeration device and its control method 有权
标题翻译：气体热泵型制冷装置及其控制方法
公开(公告)号：JP2004116931A
公开(公告)日：2004-04-15
申请号：JP2002282754
申请日：2002-09-27
申请人： Nippon Lp Gas Rengokai , Osaka Gas Co Ltd , Sanyo Electric Air Conditioning Co Ltd , Sanyo Electric Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 三洋電機株式会社 , 三洋電機空調株式会社 , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 社団法人日本エルピーガス連合会
发明人： YOKOYAMA TAKESHI , INAMURA TAKEYA , TSURUOKA HIROSHI , TATE SUKENARI , KISHI HIROAKI , KAWAI HIDEKAZU , TSUNO KATSUYUKI , MOCHIZUKI TAKASHI
IPC分类号： F25B13/00 , F25B27/00 , F25B27/02
CPC分类号： Y02A30/274 , Y02B30/52 , Y02P80/152
摘要： PROBLEM TO BE SOLVED: To provide a gas heat pump type refrigeration device capable of controlling the flow rate of a refrigerant pump added to a refrigeration device by a simple method, and to provide its control method. SOLUTION: This gas heat pump type refrigeration device is provided with a gas engine drive type compressor 1, a condenser 5, a liquid receiver 7, and an expansion valve 9 and an evaporator 11. In this case, the refrigeration device is equipped with: an exhaust heat recovering heat exchanger 13 fed with gas engine cooling water; a first circuit 23 for guiding the liquid refrigerant accumulated in the liquid receiver 7 to the heat exchanger 13 through the refrigerant pump 19 by bypassing the compressor 1 and the evaporator 11 and for guiding the refrigerant subjected to heat exchange in the heat exchanger 13 to the condenser 5; a first electric-operated valve 21 installed in the first circuit 23; a second circuit 24 for returning the refrigerant discharged from the refrigerant pump 19 to the receiver 7; a second electric-operated valve 25 installed in the second circuit 24; and a control means 31 for controlling, to an appropriate value according to the load of the compressor 1, the flow rate of the refrigerant discharged to the heat exchanger 13 from the pump 19 by regulating the valve opening of the two valves 21 and 25. COPYRIGHT: (C)2004,JPO
摘要翻译：解决问题的方案：提供一种能够通过简单的方法控制添加到制冷装置的制冷剂泵的流量的气体热泵式制冷装置，并提供其控制方法。解决方案：该气体热泵式制冷装置设置有气体发动机驱动型压缩机1，冷凝器5，液体接收器7，膨胀阀9和蒸发器11.在这种情况下，制冷装置配备有供给气体发动机冷却水的废热回收热交换器13; 第一回路23，其通过旁路压缩机1和蒸发器11将积存在储液器7中的液体制冷剂通过制冷剂泵19引导到热交换器13，并且将在热交换器13中进行热交换的制冷剂引导到冷凝器5; 安装在第一回路23中的第一电动阀21; 用于将从制冷剂泵19排出的制冷剂返回到接收器7的第二回路24; 安装在第二回路24中的第二电动阀25; 以及控制装置31，用于通过调节两个阀21和25的阀开度，根据压缩机1的负载来控制从泵19排出到热交换器13的制冷剂的流量。版权所有（C）2004，JPO

3. 发明专利

JP2003056944A Air conditioner 有权
标题翻译：冷气机
公开(公告)号：JP2003056944A
公开(公告)日：2003-02-26
申请号：JP2001249246
申请日：2001-08-20
申请人： Mitsubishi Heavy Ind Ltd , Nippon Lp Gas Rengokai , Osaka Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 三菱重工業株式会社 , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 社団法人日本エルピーガス連合会
发明人： YOKOYAMA TAKESHI , NAKAMURA TAKU , TSURUOKA HIROSHI , AIMI MASARU , TATE SUKENARI , KISHI HIROAKI , KAWAI HIDEKAZU , MORISHIMA TATEJI , FUKUMURA MITSUMASA , KASAHARA HIDEAKI , NAKAJIMA AKIRA
IPC分类号： F25B1/00 , F25B27/00 , F25B27/02
CPC分类号： F25B2400/075 , Y02A30/274
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner capable of performing a highly efficient operation regardless of the magnitude of load required. SOLUTION: The air conditioner has an indoor heat exchanger 21, an outdoor heat exchanger 11, expansion valves 14 and 22 and a four-way valve 13 which are connected with each other through a refrigerant pipe 30, and is further provided with compressors 12A and 12B which are connected in parallel. The compressors 12A and 12B are respectively driven by a gas engine EG and an electric motor M. A bypass pipe 33 is provided between the refrigerant pipe 30a for allowing a liquid refrigerant having an intermediate temperature and an intermediate pressure to flow during heating operation and the refrigerant pipe 30b located upstream of the compressor 12B. The bypass pipe 33 is provided with an on-off valve V4 and a waste heat using heat exchanger 40. An on-off valve V5 is installed in the refrigerant pipe 30b located upstream of the joint part with the pipe 33.
摘要翻译：要解决的问题：提供能够执行高效运行的空调，而不管所需的负载的大小。解决方案：空调具有通过制冷剂管30彼此连接的室内热交换器21，室外热交换器11，膨胀阀14和22以及四通阀13，并且还设置有压缩机12A和 12B并联。压缩机12A和12B分别由气体发动机EG和电动机M驱动。旁通管33设置在制冷剂管30a之间，用于允许具有中间温度和中间压力的液体制冷剂在加热操作期间流动，位于压缩机12B上游的制冷剂管30b。旁通管33设置有开关阀V4和使用热交换器40的废热。开关阀V5安装在位于与管33的接合部分上游的制冷剂管30b中。

4. 发明专利

JP2003287318A Air-conditioner 有权
标题翻译：冷气机
公开(公告)号：JP2003287318A
公开(公告)日：2003-10-10
申请号：JP2002092294
申请日：2002-03-28
申请人： Mitsubishi Heavy Ind Ltd , Nippon Lp Gas Rengokai , Osaka Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 三菱重工業株式会社 , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 社団法人日本エルピーガス連合会
发明人： NAKAJIMA AKIRA , KASAHARA HIDEAKI , MORISHIMA TATEJI , YOKOYAMA TAKESHI , NAKAMURA TAKU , TAKAHATA KAZUMI , TSURUOKA HIROSHI , TATE SUKENARI , KISHI HIROAKI , KAWAI HIDEKAZU
IPC分类号： F24F11/02 , F25B13/00 , F25B27/02 , F25B41/00 , F25B49/02
CPC分类号： F25B13/00 , F25B27/02 , F25B2400/161 , Y02A30/274 , Y02P80/152
摘要： PROBLEM TO BE SOLVED: To provide an air-conditioner for feeding liquid refrigerant to a heat exchanger for recovering waste heat from an engine without providing any high head liquid pump.
SOLUTION: A high-pressure liquid pipe and a high-pressure gas pipe are communicated with each other via a branched flow passage 42 during the heating operation, and tanks 60 and 61 with the liquid refrigerant stored therein and a water heat exchanger (a heat exchanger for recovering waste heat from the engine) 46 are provided in the branched flow passage 42. In addition, the air-conditioner comprises a pressure line 71 as a means to pressurize the inside of the tanks 60 and 61 with one end thereof communicated with a refrigerant pipe 14 on the discharge side of a compressor 34 and the other end communicated with the tanks 60 and 61, and a decompression line 73 as a means to decompress the inside of the tanks 60 and 61 with one end communicated with the refrigerant pipe 14 on the suction side of the compressor 34 and the other end communicated with the tanks 60 and 61. The tanks 60 and 61 are located above the heat exchanger. 46, and the air-conditioner has solenoid valves (switching means) 75, 76, 77 and 78 to switch the communication of the pressure line 71 and the decompression line 73 to the tanks 60 and 61.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于将液体制冷剂供给到用于从发动机回收废热的热交换器的空调器，而不提供任何高的液体泵。解决方案：在加热操作期间，高压液体管道和高压气体管道通过分支流动通道42彼此连通，并且储存有液体制冷剂的罐60和61以及水热交换器（用于回收来自发动机的废热的热交换器）46设置在分支流路42中。另外，空气调节器包括压力管线71，作为对罐60和61的内部加压的装置，其一端与压缩机34的排出侧的制冷剂管14连通，另一端与罐60,61连通，减压管73作为将罐60,61的内部减压的装置，其一端与压缩机34的吸入侧的制冷剂管14，另一端与容器60,61连通。容器60,61位于热交换器的上方。 46，空调器具有电磁阀（开关装置）75,76,77和78，以将压力线71和减压管线73的连通切换到箱60和61。版权所有（C） 2004年，JPO

5. 发明专利

JP2005098629A Air conditioner 审中-公开
标题翻译：冷气机
公开(公告)号：JP2005098629A
公开(公告)日：2005-04-14
申请号：JP2003334366
申请日：2003-09-25
申请人： Mitsubishi Heavy Ind Ltd , Nippon Lp Gas Rengokai , Osaka Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 三菱重工業株式会社 , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 社団法人日本エルピーガス連合会
发明人： KUNIDA HIROSHI , KASAGI TSUKASA , KATO TADAHIRO , YOKOYAMA TAKESHI , TSURUOKA HIROSHI , TATE SUKENARI , KISHI HIROAKI
IPC分类号： F24F5/00 , F25B27/00 , F25B27/02 , F25B41/00
CPC分类号： Y02A30/274
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner capable of supplying a refrigerant to a water heat exchanger without mounting a refrigerant pump. SOLUTION: This air conditioner constituted by connecting a compressor 12 driven by an engine 11, an indoor-side heat exchanger 13, an outdoor-side heat exchanger 14 and a four-way valve 15 by a refrigerant line 16, and having the water heat exchanger 17 as a heat exchanger to recover the exhaust heat of the engine 11, further comprises a liquid refrigerant supply tank 20 communicating with an accumulator 29 as a liquid refrigerant accumulating means mounted on the refrigerant line 16 to accumulate the liquid refrigerant 18, and two pressurizing and depressurizing tanks 21-1, 21-2 for sucking/discharging the liquid refrigerant 18 from the liquid refrigerant supply tanks 20 by pressurizing and depressurizing means, the heat of the discharged liquid of the liquid refrigerant from the pressurizing and depressurizing tanks is exchanged by the water heat exchanger 17, and the gas refrigerant 23 produced by the heat exchange is supplied to a gas refrigerant discharge line 25 side from the compressor 12 through a gas refrigerant supply line 24. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够在不安装制冷剂泵的情况下向水热交换器供应制冷剂的空调。解决方案：该空气调节器是通过将由发动机11驱动的压缩机12，室内侧热交换器13，室外侧热交换器14和四通阀15通过制冷剂管线16连接构成的，作为回收发动机11的排热的热交换器的水热交换器17还包括与作为安装在制冷剂管路16上积存液体制冷剂18的液体制冷剂积存装置的蓄能器29连通的液体制冷剂供给槽20 ，以及两个用于通过加压和减压装置从液体制冷剂供应罐20吸入/排出液体制冷剂18的加压和减压罐21-1,21-2，来自加压和减压的液体制冷剂的排放液体的热量通过水热交换器17更换水箱，通过热交换生成的气体制冷剂23从气体制冷剂排出管路25侧供给压缩机12通过气体制冷剂供应管线24。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2006233904A Open type scroll compressor 有权
标题翻译：开式滚筒式压缩机
公开(公告)号：JP2006233904A
公开(公告)日：2006-09-07
申请号：JP2005051479
申请日：2005-02-25
申请人： Daikin Ind Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Yanmar Co Ltd , ダイキン工業株式会社 , ヤンマー株式会社 , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社
发明人： YOKOYAMA TAKESHI , SAKAI HISASHIGE , TATE SUKENARI , MISAWA MAKOTO , YOSHIDA YOSHIAKI
IPC分类号： F04C18/02 , F04C29/12
摘要： PROBLEM TO BE SOLVED: To prevent an oil return pipe from being clogged by foreign matter.
SOLUTION: This open type scroll compressor is provided with the oil return pipe 27 for returning lubricating oil leaking into a high pressure chamber 19 and collected into a low pressure chamber 18. An intrusion prevention filter 17 for removing foreign matter in refrigerant flowing back into the high pressure chamber 19 from a refrigerant pipe when the compressor 10 stops is provided in an internal end part 16a of a connection pipe 16 constituting a discharge pipe 14. Consequently, mixing of foreign matter into lubricating oil in the high pressure chamber 19 is prevented, and clogging by foreign matter in the oil return pipe 27 is prevented.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：防止回油管被异物堵塞。解决方案：这种开式涡旋压缩机设有回油管27，用于将泄漏到高压室19中的润滑油返回并收集到低压室18中。一种用于除去制冷剂流中异物的防侵入过滤器17 在构成排出管14的连接管16的内端部16a设有压缩机10停止时从制冷剂配管回到高压室19.因此，异物混入高压室19内的润滑油并且防止了在回油管27中的异物堵塞。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2006233905A Open type scroll compressor 有权
标题翻译：开式滚筒式压缩机
公开(公告)号：JP2006233905A
公开(公告)日：2006-09-07
申请号：JP2005051482
申请日：2005-02-25
申请人： Daikin Ind Ltd , Osaka Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Yanmar Co Ltd , ダイキン工業株式会社 , ヤンマー株式会社 , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社
发明人： YOKOYAMA TAKESHI , SAKAI HISASHIGE , TATE SUKENARI , MISAWA MAKOTO , YOSHIDA YOSHIAKI
IPC分类号： F04C18/02 , F04C29/02
摘要： PROBLEM TO BE SOLVED: To suppress vibration caused in an oil return pipe.
SOLUTION: This open type scroll compressor is provided with the oil return pipe 41 for returning lubricating oil collected in a high pressure chamber 19 into a low pressure chamber 18. The oil return pipe 41 is composed of a vertical part 42 for absorbing lubricating oil in the high pressure chamber 19 upward and a horizontal part 43 being continuous with the vertical part 42 and extending horizontally into the low pressure chamber 18 from a part near the center of a driving shaft 27. The horizontal part 43 is inserted into a supporting pipe 45 fixed to a fixed scroll 21 and is supported at both ends of the supporting pipe 45. Consequently, amplitude of vibration on a free end side of the horizontal part 43 is reduced.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：抑制在回油管中产生的振动。解决方案：该开式涡旋压缩机设有用于将收集在高压室19中的润滑油返回到低压室18中的回油管41.回油管41包括用于吸收的垂直部分42 高压室19中的润滑油向上，水平部分43与垂直部分42连续并且从靠近驱动轴27中心的部分水平地延伸到低压室18中。水平部分43插入到支撑管45固定在固定涡旋盘21上并被支撑在支撑管45的两端。因此，水平部43的自由端侧的振动幅度减小。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2004037012A Air-conditioning system 有权
公开(公告)号：JP2004037012A
公开(公告)日：2004-02-05
申请号：JP2002195892
申请日：2002-07-04
申请人： Toho Gas Co Ltd , 東邦瓦斯株式会社
发明人： AIMI MASARU , TATE SUKENARI , KAWAGUCHI HIDEO
IPC分类号： F25B13/00 , F25B31/00
摘要： PROBLEM TO BE SOLVED: To provide an air-conditioning system for using two types of cycles together by using one compressor.
SOLUTION: In the air-conditioning system 1, a multi-vane type (or scroll type) compressor 2, an indoor equipment heat exchanger 11, an outdoor equipment heat exchanger 12, and an intermediate pressure heat exchanger 13 are connected by refrigerant piping 3. The compressor 2 has three refrigerant entrances and exits, namely a suction opening 21, a discharge opening 22, and an intermediate pressure extraction entrances and exits 23. Additionally, the passage direction of a refrigerant gas to the indoor equipment heat exchanger 11 or the outdoor equipment heat exchanger 12 is switched by a four-way valve 15. Further, the intermediate pressure heat exchanger 13 is connected to the intermediate pressure extraction inlet 23.
COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2008170044A Phase-change refrigerant circulating unit and air conditioning system 审中-公开
标题翻译：相变式制冷机循环和空调系统
公开(公告)号：JP2008170044A
公开(公告)日：2008-07-24
申请号：JP2007002693
申请日：2007-01-10
申请人： Ntt Facilities Inc , Toho Gas Co Ltd , 東邦瓦斯株式会社 , 株式会社Nttファシリティーズ
发明人： NAKAMURA NAOTO , TATE SUKENARI , KAWAGUCHI HIDEO , MINO YOSUKE , UEKUSA TSUNEO , WARATANI SHISEI
IPC分类号： F28D15/02 , F24F5/00 , F25B1/00 , F25B41/04 , F28D15/06
摘要： PROBLEM TO BE SOLVED: To provide a phase-change refrigerant circulating unit and an air conditioning system capable of preventing cavitation of a pump, smoothly and stably circulating a refrigerant in cooling and heating, and further stably circulating the refrigerant in stopping or restarting the heating. SOLUTION: In this phase-change refrigerant circulating unit, a pump unit 1 circulates the phase-change refrigerant to the air conditioning system having a cold/hot water-side heat exchanger 2 and an indoor unit 3, and has a liquid receiver 12, a pump 11, flow channels 15, 16 connected to an inlet of the liquid receiver 12, and flow channels 17, 18 connected to an outlet of the pump 11, an opening and closing valve 21 and a check valve 22 are disposed in the flow channel 15, an opening and closing valve 24 and a check valve 23 are disposed in the flow channel 16, an opening and closing valve 26 and a check valve 25 are disposed in a flow channel 17, and an opening and closing valve 27 is disposed in the flow channel 18. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决问题的方案：提供一种能够防止泵气蚀的相变制冷剂循环单元和空调系统，使制冷剂在冷却和加热中平稳稳定地循环，并使制冷剂在停止或停止时进一步稳定地循环重启加热。解决方案：在该相变制冷剂循环单元中，泵单元1将相变制冷剂循环到具有冷/热水侧热交换器2和室内单元3的空调系统中，并且具有液体接收器12，泵11，连接到液体接收器12的入口的流动通道15,16和连接到泵11的出口的流动通道17,18，设置有打开和关闭阀21以及止回阀22 在流路15中，在流路16内配置有开闭阀24和止回阀23，在流路17中设置有开闭阀26和止回阀25，开闭阀 27设置在流动通道18中。（C）2008，JPO＆INPIT

10. 发明专利

JP2005156032A Air conditioner 有权
标题翻译：冷气机
公开(公告)号：JP2005156032A
公开(公告)日：2005-06-16
申请号：JP2003395464
申请日：2003-11-26
申请人： Toho Gas Co Ltd , 東邦瓦斯株式会社
发明人： TATE SUKENARI , AIMI MASARU , KAWAGUCHI HIDEO
IPC分类号： F24F11/02 , F25B1/00 , F25B27/00
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner capable of using a high operation efficiency region of a gas engine with simple control. SOLUTION: This air conditioner 1 for performing air-conditioning by circulating a refrigerant to a refrigerant passage 16 including heat exchangers 13, 14, has a plurality of multistage capacity compressors 22, 23 provided in parallel in the refrigerant passage 16, and the gas engine 11 for driving them. In the air conditioner 1, the effective capacity of the multistage capacity compressors 22, 23 is changed by opening/closing of on-off valves 25, 26, and the number of driven ones of the multistage capacity compressors 22, 23 is changed by the switching operation of a drive switching device 21. With this control, either can be selected out of at least five operation modes. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够简单控制地使用燃气发动机的高运行效率区域的空调机。解决方案：用于通过使制冷剂循环到包括热交换器13,14的制冷剂通道16进行空气调节的空气调节器1具有在制冷剂通道16中并联设置的多个多级容量压缩机22,23，以及用于驱动它们的燃气发动机11。在空调装置1中，通过开关阀25,26的开闭来改变多级容量压缩机22,23的有效容量，多级容量压缩机22,23的被驱动压缩机的数量由驱动切换装置21的切换操作。通过该控制，也可以从至少五种操作模式中选择。版权所有（C）2005，JPO＆NCIPI

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