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公开(公告)号：US20070196227A1
公开(公告)日：2007-08-23
申请号：US10591918
申请日：2005-03-04
CPC分类号： F01C20/26 , F01C1/32 , F01C1/356 , F01C13/04 , F01C20/02 , F04C23/003 , F04C23/008 , F25B1/04 , F25B9/008 , F25B9/06 , F25B13/00 , F25B2309/061 , F25B2313/02742
摘要： Two rotary mechanism parts (70, 80) are provided in a rotary expander (60). The first rotary mechanism part (70) is smaller in displacement volume than the second rotary mechanism part (80). A first low-pressure chamber (74) of the first rotary mechanism part (70) and a second high-pressure chamber (83) of the second rotary mechanism part (80) are fluidly connected together by a communicating passageway (64), thereby forming a single expansion chamber (66). High-pressure refrigerant introduced into the first rotary mechanism part (70) expands in the expansion chamber (66). An injection passageway (37) is fluidly connected to the communicating passageway (64). When an motor-operated valve (90) is placed in the open state, high-pressure refrigerant is introduced into the expansion chamber (66) also from the injection passageway (37). This makes it possible to inhibit the drop in power recovery efficiency, even in the condition that causes the actual expansion ratio to fall below the design expansion ratio.
摘要翻译： 两个旋转机构部件（70,80）设置在旋转式膨胀机（60）中。 第一旋转机构部（70）的位移容积小于第二旋转机构部（80）。 第一旋转机构部分（70）的第一低压室（74）和第二旋转机构部分（80）的第二高压室（83）通过连通通道（64）流体连接在一起 形成单个膨胀室（66）。 引入到第一旋转机构部分（70）中的高压制冷剂在膨胀室（66）中膨胀。 注入通道（37）流体地连接到连通通道（64）。 当电动阀（90）处于打开状态时，高压制冷剂也从注入通道（37）引入膨胀室（66）。 这使得即使在使实际膨胀比低于设计膨胀比的条件下也可以抑制功率回收效率的下降。
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公开(公告)号：US20130025307A1
公开(公告)日：2013-01-31
申请号：US13638089
申请日：2011-03-25
IPC分类号： F25B49/02
CPC分类号： F25B9/06 , F25B1/04 , F25B9/008 , F25B13/00 , F25B49/025 , F25B2309/061 , F25B2313/02742 , F25B2600/021 , Y02B30/741
摘要： A refrigeration system includes a refrigerant circuit including a compressor and an expander which expands a refrigerant and generates power, for performing a refrigeration cycle. The refrigeration system includes a compressor control section and an expander control section which, when an operation stop signal is output during operation, reduces a rotational speed of the compressor and increases a rotational speed of the expander to increase the ratio of the rotational speed of the expander to the rotational speed of the compressor.
摘要翻译： 制冷系统包括制冷剂回路，该制冷剂回路包括压缩机和膨胀机，其膨胀制冷剂并产生用于进行制冷循环的动力。 制冷系统包括：压缩机控制部和膨胀机控制部，其在运转中输出运转停止信号时，降低压缩机的旋转速度，增大膨胀机的旋转速度，增大转速的比例 膨胀机到压缩机的转速。
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公开(公告)号：US07784303B2
公开(公告)日：2010-08-31
申请号：US11659343
申请日：2005-08-05
申请人： Katsumi Sakitani , Michio Moriwaki , Masakazu Okamoto , Eiji Kumakura , Yume Inokuchi , Tetsuya Okamoto , Yoshinari Sasaki
发明人： Katsumi Sakitani , Michio Moriwaki , Masakazu Okamoto , Eiji Kumakura , Yume Inokuchi , Tetsuya Okamoto , Yoshinari Sasaki
IPC分类号： F25B41/06
CPC分类号： F04C23/008 , F01C1/0215 , F01C1/322 , F01C11/004 , F01C11/008 , F01C20/18
摘要： A positive displacement expander includes a volume change mechanism (90) for changing the volume of a first fluid chamber (72) of an expansion mechanism (60). The expansion mechanism (60) includes a first rotary mechanism (70) and a second rotary mechanism (80) each having a cylinder (71, 81) containing a rotor (75, 85). The first fluid chamber (72) of the first rotary mechanism (70) and a second fluid chamber (82) of the second rotary mechanism (80) are in fluid communication with each other to form an actuation chamber (66). Meanwhile, the first fluid chamber (72) of the first rotary mechanism (70) is smaller than the second fluid chamber (82) of the second rotary mechanism (80). The volume change mechanism (90) includes an auxiliary chamber (93) fluidly communicating with the first fluid chamber (72) and an auxiliary piston (92) for changing the volume of the auxiliary chamber (93). The auxiliary chamber (93) is in fluid communication with the first fluid chamber (72) of the first rotary mechanism (70).
摘要翻译： 正位移扩张器包括用于改变膨胀机构（60）的第一流体室（72）的体积的容积变化机构（90）。 膨胀机构60具有第一旋转机构70和第二旋转机构80，所述第一旋转机构70具有容纳转子75,85的气缸71,71。 第一旋转机构（70）的第一流体室（72）和第二旋转机构（80）的第二流体室（82）彼此流体连通以形成致动室（66）。 同时，第一旋转机构（70）的第一流体室（72）比第二旋转机构（80）的第二流体室（82）小。 容积切换机构90包括与第一流体室72流体连通的辅助室93和用于改变辅助室93的容积的辅助活塞92。 辅助室（93）与第一旋转机构（70）的第一流体室（72）流体连通。
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公开(公告)号：US20100101268A1
公开(公告)日：2010-04-29
申请号：US12530053
申请日：2008-02-06
CPC分类号： F25B13/00 , F04C18/352 , F04C23/003 , F04C29/028 , F25B1/04 , F25B9/06 , F25B31/004 , F25B2309/061 , F25B2313/02742
摘要： A refrigerant circuit (11) in an air conditioner (10) includes a compressor (20) and an expander (30). In the compressor (20), refrigerant compressed by a compression mechanism (21) is discharged into the internal space of a compressor casing (24). In the compressor (20), refrigeration oil which has accumulated in the bottom of the compressor casing (24) is supplied to the compression mechanism (21). The refrigeration oil in the bottom of the compressor casing (24) is directly introduced into an expansion mechanism (31) of the expander (30) through an oil supply pipe (41).
摘要翻译： 空调装置（10）中的制冷剂回路（11）具有压缩机（20）和膨胀机（30）。 在压缩机20中，由压缩机构21压缩的制冷剂被排出到压缩机壳体24的内部空间内。 在压缩机20中，积存在压缩机壳体24的底部的冷冻机油供给压缩机构21。 压缩机壳体（24）底部的冷冻机油通过供油管（41）被直接引入膨胀机（30）的膨胀机构（31）。
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公开(公告)号：US20090100860A1
公开(公告)日：2009-04-23
申请号：US12224777
申请日：2007-03-05
IPC分类号： F25B43/02
CPC分类号： F04C23/008 , F01C1/322 , F04C23/003 , F04C29/023 , F25B13/00 , F25B2313/02742 , F25B2400/14
摘要： In a compression/expansion unit (30) serving as a fluid machine, both of a compression mechanism (50) and an expansion mechanism (60) are contained in a single casing (31). A shaft (40) coupling the compression mechanism (50) to the expansion mechanism (60) has an oil feeding channel (90) formed therein. Refrigerating machine oil accumulated at the bottom of the casing (31) is sucked up into the oil feeding channel (90) and fed to the compression mechanism (50) and the expansion mechanism (60). The refrigerating machine oil fed to the expansion mechanism (60) is discharged from the expansion mechanism (60) together with the refrigerant after expansion, flows through the refrigerant circuit and then flows back to the compression mechanism (50) in the compression/expansion unit (30).
摘要翻译： 在用作流体机械的压缩/膨胀单元（30）中，压缩机构（50）和膨胀机构（60）都包含在单个壳体（31）中。 将压缩机构（50）与膨胀机构（60）连接的轴（40）具有形成在其中的供油通道（90）。 积存在壳体31的底部的制冷机油被吸入供油通道90，供给压缩机构50和膨胀机构60。 供给到膨胀机构60的制冷机油与膨胀机构60一起在膨胀后与制冷剂一起排出，流过制冷剂回路，然后回流到压缩/膨胀单元中的压缩机构50 （30）。
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公开(公告)号：US20090071187A1
公开(公告)日：2009-03-19
申请号：US12226433
申请日：2007-04-16
IPC分类号： F25B23/00
CPC分类号： F25B13/00 , F25B9/008 , F25B9/06 , F25B31/004 , F25B2309/061 , F25B2313/02742 , F25B2400/14 , F25B2700/03
摘要： A refrigerant circuit (11) of an air conditioner (10) includes a compressor (20) and an expander (30). In the compressor (20), refrigerator oil is supplied from an oil reservoir (27) to a compression mechanism (21). In the expander (30), the refrigerator oil is supplied from an oil reservoir (37) to an expansion mechanism (31). The inner pressures of the compressor casing (24) and the expander casing (34) are the high pressure and the low pressure of the refrigeration cycle, respectively. An oil adjusting valve (52) is provided in an oil pipe (42) connecting the compressor casing (24) and the expander casing (34). The oil amount adjusting valve (52) is operated on the basis of an output signal of an oil level sensor (51). When the oil amount adjusting valve (52) is opened, the refrigerator oil flows from the oil reservoir (27) in the compressor casing (24) toward the oil reservoir (37) in the expander casing (34) through the oil pipe (42).
摘要翻译： 空调装置（10）的制冷剂回路（11）具有压缩机（20）和膨胀机（30）。 在压缩机20中，从油箱27向压缩机构21供给冷冻机油。 在膨胀机30中，冷冻机油从储油部37向膨胀机构31供给。 压缩机壳体（24）和膨胀机壳体（34）的内部压力分别是制冷循环的高压和低压。 在连接压缩机壳体（24）和膨胀机壳体（34）的油管（42）中设置有油调节阀（52）。 油量调节阀52基于油位传感器51的输出信号进行动作。 当油量调节阀52打开时，冷冻机油通过油管（42）从压缩机壳体（24）中的储油部（27）朝向膨胀机壳体（34）内的储油部（37） ）。
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公开(公告)号：US20060165542A1
公开(公告)日：2006-07-27
申请号：US10538069
申请日：2003-12-03
IPC分类号： F04C18/00
CPC分类号： F01C20/16 , F01C1/322 , F01C11/008
摘要： Disclosed is a displacement type expansion machine. In the displacement type expansion machine, a communicating passage (72) for allowing fluid communication between an expansion-process intermediate position and an outflow position in an expansion chamber (62) is provided thereby to allow the fluid at the outflow side to return to the expansion chamber (62). Such arrangement prevents the pressure of the expansion chamber (62) from being lowered to an excessive extent in predetermined operating conditions, thereby avoiding the drop in power recovery efficiency.
摘要翻译： 公开了一种位移式膨胀机。 在位移式膨胀机中，设置有用于使膨胀室（62）中的膨胀处理中间位置与流出位置之间的流体连通的连通通路（72），从而允许流出侧的流体返回到 膨胀室（62）。 这样的布置防止了在预定的操作条件下膨胀室（62）的压力降低到过大程度，从而避免了功率回收效率的下降。
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公开(公告)号：US08312732B2
公开(公告)日：2012-11-20
申请号：US12226135
申请日：2007-04-16
IPC分类号： F04B39/02
CPC分类号： F25B31/004 , F25B9/06 , F25B2341/0016 , F25B2700/03
摘要： A compressor and an expander are provided in a refrigerant circuit of an air conditioner. In the compressor, refrigerator oil is supplied from an oil reservoir to a compression mechanism. In the expander, the refrigerator oil is supplied from an oil reservoir to an expansion mechanism. Internal spaces of a compressor casing and an expander casing communicate with each other through an equalizing pipe. An oil pipe connecting the compressor casing and the expander casing is provided with an oil amount adjusting valve operated on the basis of an output signal of an oil level sensor. When the oil amount adjusting valve is opened, the oil reservoir in the compressor casing and the oil reservoir in the expander casing communicate with each other to allow the refrigerator oil to flow through the oil pipe.
摘要翻译： 压缩机和膨胀机设置在空调的制冷剂回路中。 在压缩机中，冷冻机油从储油器供给压缩机构。 在膨胀机中，冷冻机油从储油器供给到膨胀机构。 压缩机壳体和膨胀机壳体的内部空间通过均衡管道相互连通。 连接压缩机壳体和膨胀机壳体的油管设置有基于油位传感器的输出信号操作的油量调节阀。 当油量调节阀打开时，压缩机壳体中的储油器和膨胀机壳体中的储油器相互连通，以使冷冻机油流过油管。
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公开(公告)号：US20100074769A1
公开(公告)日：2010-03-25
申请号：US12515055
申请日：2007-11-21
申请人： Eiji Kumakura , Katsumi Sakitani
发明人： Eiji Kumakura , Katsumi Sakitani
CPC分类号： F04C23/008 , F01C1/322 , F01C11/004 , F01C13/04 , F01C21/06 , F04C18/322 , F04C23/02
摘要： A fluid machine includes a casing, a compression mechanism for compressing refrigerant, an expansion mechanism for expanding refrigerant, and a rotary shaft connecting the compression mechanism and the expansion mechanism The compression mechanism, the expansion mechanism and the rotary shaft are disposed in the casing. A heat insulator partitions an internal space of the casing into a first space with the expansion mechanism disposed therein and a second space with the compression mechanism disposed therein. The rotary shaft passes through the heat insulator. An elastically deformable seal element seals a clearance between an outer periphery of the heat insulator and an inner periphery of the casing.
摘要翻译： 流体机械包括壳体，用于压缩制冷剂的压缩机构，用于膨胀制冷剂的膨胀机构和连接压缩机构和膨胀机构的旋转轴。压缩机构，膨胀机构和旋转轴设置在壳体中。 绝热体将壳体的内部空间分隔成具有设置在其中的膨胀机构的第一空间和设置有压缩机构的第二空间。 旋转轴穿过绝热体。 可弹性变形的密封元件密封绝热体的外周和壳体的内周之间的间隙。
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公开(公告)号：US07618242B2
公开(公告)日：2009-11-17
申请号：US10478422
申请日：2003-02-25
CPC分类号： F04C18/328 , F04C18/332 , F04C23/008 , F04C2230/231 , F04C2230/60 , F04C2240/805 , Y10S417/902
摘要： A front head of a cylinder and a mounting plate are tightly fixed to each other. The mounting plate is welded to a casing. The mounting plate is made of steel containing 2.0% or less of carbon therein. Furthermore, a stator core of a compressor motor is welded to the casing. A hermetic sealed compressor is configured in a high-pressure domed type. A supercritical fluid is used as an operating fluid.
摘要翻译： 气缸的前头和安装板彼此紧密地固定。 安装板焊接到外壳上。 安装板由含有2.0％以下碳的钢制成。 此外，将压缩机电动机的定子铁心焊接到壳体。 气密密封压缩机配置为高压圆顶型。 超临界流体用作工作流体。
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