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21. 发明授权

US08312732B2 Refrigerating apparatus 有权
标题翻译：制冷装置
公开(公告)号：US08312732B2
公开(公告)日：2012-11-20
申请号：US12226135
申请日：2007-04-16
申请人： Katsumi Sakitani , Masakazu Okamoto , Eiji Kumakura , Tetsuya Okamoto
发明人： Katsumi Sakitani , Masakazu Okamoto , Eiji Kumakura , Tetsuya Okamoto
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。

22. 发明申请

US20090178433A1 Positive displacement expander 有权
标题翻译：正位移扩张器
公开(公告)号：US20090178433A1
公开(公告)日：2009-07-16
申请号：US11664302
申请日：2005-09-30
申请人： Eiji Kumakura , Masakazu Okamoto , Tetsuya Okamoto , Katsumi Sakitani
发明人： Eiji Kumakura , Masakazu Okamoto , Tetsuya Okamoto , Katsumi Sakitani
IPC分类号： F25D9/00
CPC分类号： F01C1/322 , F01C11/002 , F01C21/006
摘要： A casing (31) houses therein an expansion mechanism (60) and a compression mechanism (50). The expansion mechanism (60) has a rear head (62) in which a pressure snubbing chamber (71) is provided. The pressure snubbing chamber (71) is divided by a piston (77) into an inflow/outflow chamber (72) which fluidly communicates with an inflow port (34) and a back pressure chamber (73) which fluidly communicates with the inside of the casing (31). The piston (77) is displaced in response to suction pressure variation whereby the volume of the inflow/outflow chamber (72) varies. This enables the inflow/outflow chamber (72) to directly perform supply of refrigerant to or suction of refrigerant from the inflow port (34) which is a source of pressure variation, thereby making it possible to effectively inhibit suction pressure variation.
摘要翻译：壳体（31）容纳有膨胀机构（60）和压缩机构（50）。膨胀机构（60）具有设置有压力缓冲室（71）的后头部（62）。压力缓冲室71被活塞77分成流入/流出室72，该流入室72流体地与流入端口34流体连通，套管（31）。活塞（77）响应于入口/流出室（72）的体积变化的吸入压力变化而移位。由此，能够使流入室72直接从作为压力变化源的流入口34进行制冷剂的供给或制冷剂的吸入，能够有效地抑制吸入压力的变化。

23. 发明申请

US20080310983A1 Expander 有权
标题翻译：扩张器
公开(公告)号：US20080310983A1
公开(公告)日：2008-12-18
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： F04C18/04 , F25B9/06
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。

24. 发明申请

US20070053782A1 Rotary type expander and fluid machinery 有权
标题翻译：旋转式膨胀机和流体机械
公开(公告)号：US20070053782A1
公开(公告)日：2007-03-08
申请号：US10570878
申请日：2004-09-03
申请人： Masakazu Okamoto , Michio Moriwaki , Eiji Kumakura , Tetsuya Okamoto , Katsumi Sakitani
发明人： Masakazu Okamoto , Michio Moriwaki , Eiji Kumakura , Tetsuya Okamoto , Katsumi Sakitani
IPC分类号： F01C20/18 , F01C19/02 , F04C27/00 , F04C14/18 , F03C4/00
CPC分类号： F04C18/322 , F01C1/32 , F01C1/356 , F01C11/006 , F01C13/04 , F04C18/0215 , F04C18/356 , F04C23/008
摘要： A rotary type expander (60) is provided with two rotary mechanism parts (70, 80). These two rotary mechanism parts (79, 80) differ from each other in displacement volume. The outflow side of the first rotary mechanism part (70) of small displacement volume is fluidly connected to the inflow side of the second rotary mechanism part (80) of large displacement volume. In addition, the process in which the volume of a first low-pressure chamber (74) in the first rotary mechanism part (70) decreases is in synch with the process in which the volume of a second high-pressure chamber (83) in the second rotary mechanism part (80) increases. Refrigerant at high pressure is first introduced into a first high-pressure chamber (73) of the first rotary mechanism part (70). Thereafter, this high-pressure refrigerant passes through a communicating passage (64) and then flows by way of the first low-pressure chamber (74) into the second high-pressure chamber (83) while expanding. The after-expansion refrigerant flows out to an outflow port (35) from a second low-pressure chamber (84) of the second rotary mechanism part (80).
摘要翻译：旋转式膨胀机（60）具有两个旋转机构部件（70,80）。这两个旋转机构部件（79,80）在排量方面彼此不同。小排量容积的第一旋转机构部（70）的流出侧流体地连接到大排量体积的第二旋转机构部（80）的流入侧。此外，第一旋转机构部（70）中的第一低压室（74）的容积减小的过程与第二高压室（83）的容积减小的过程同步第二旋转机构部（80）增加。首先将高压制冷剂引入第一旋转机构部（70）的第一高压室（73）。此后，该高压制冷剂通过连通通路64，然后通过第一低压室74在膨胀的同时流入第二高压室83。后膨胀制冷剂从第二旋转机构部（80）的第二低压室（84）流出到流出口（35）。

25. 发明申请

US20060059929A1 Refrigeration apparatus 有权
标题翻译：制冷装置
公开(公告)号：US20060059929A1
公开(公告)日：2006-03-23
申请号：US10541590
申请日：2003-12-25
申请人： Katsumi Sakitani , Michio Moriwaki , Masakazu Okamoto , Eiji Kumakura , Tetsuya Okamoto
发明人： Katsumi Sakitani , Michio Moriwaki , Masakazu Okamoto , Eiji Kumakura , Tetsuya Okamoto
IPC分类号： F25B49/00
CPC分类号： F25B13/00 , F25B9/008 , F25B9/06 , F25B2309/061 , F25B2400/04 , F25B2400/075 , F25B2500/18 , F25B2600/025 , F25B2600/2501
摘要： A refrigerant circuit (10) of a refrigeration apparatus is filled up with carbon dioxide as a refrigerant. In the refrigerant circuit (10), a first compressor (21) and a second compressor (22) are arranged in parallel. The first compressor (21) is connected to both an expander (23) and a first electric motor (31), and is driven by both of the expander (23) and the first electric motor (31). On the other hand, the second compressor (22) is connected only to a second electric motor (32), and is driven by the second electric motor (32). In addition, the refrigerant circuit (10) is provided with a bypass line (40) which bypasses the expander (23). The bypass line (40) is provided with a bypass valve (41). And, the capacity of the second compressor (22) and the valve opening of the bypass valve (41) are regulated so that the COP of the refrigeration apparatus is improved after enabling the refrigeration apparatus to operate properly in any operation conditions.
摘要翻译：制冷装置的制冷剂回路（10）充满二氧化碳作为制冷剂。在制冷剂回路（10）中，并列配置有第一压缩机（21）和第二压缩机（22）。第一压缩机21与膨胀机23和第一电动机31连接，由膨胀机23和第一电动机31二者驱动。另一方面，第二压缩机22仅与第二电动机32连接，由第二电动机32驱动。此外，制冷剂回路（10）设置有旁通膨胀机（23）的旁通管路（40）。旁通管路（40）设置有旁通阀（41）。并且，调节第二压缩机22的容量和旁通阀41的阀开度，使得能够使制冷装置在任何操作条件下正常工作，从而提高制冷装置的COP。

26. 发明申请

US20100101268A1 REFRIGERATION SYSTEM 审中-公开
标题翻译：制冷系统
公开(公告)号：US20100101268A1
公开(公告)日：2010-04-29
申请号：US12530053
申请日：2008-02-06
申请人： Katsumi Sakitani , Masakazu Okamoto , Eiji Kumakura
发明人： Katsumi Sakitani , Masakazu Okamoto , Eiji Kumakura
IPC分类号： F25B43/00 , F25B1/00 , F25B41/00
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）。

27. 发明申请

US20110002803A1 EXPANDER 审中-公开
公开(公告)号：US20110002803A1
公开(公告)日：2011-01-06
申请号：US12919770
申请日：2009-02-26
申请人： Eiji Kumakura , Masakazu Okamoto , Masanori Ukibune , Katsumi Sakitani
发明人： Eiji Kumakura , Masakazu Okamoto , Masanori Ukibune , Katsumi Sakitani
IPC分类号： F01C1/02
CPC分类号： F01C1/322 , F01C1/0207 , F01C11/008 , F01C21/18 , F04C2250/10
摘要： An expander includes a cylinder at which an inflow port and an outflow port are formed, a piston eccentrically disposed in the cylinder relative to a rotational shaft to form a fluid chamber between the piston and the cylinder, and a blade dividing the fluid chamber into a high pressure side and a low pressure side. The cylinder, the piston and the blade are arranged and configured such that the expander recovers power of a fluid depressurized in the fluid chamber. The cylinder has an inner diameter Dc, the inflow port has a diameter Di, and the outflow port has a diameter Do. The relationship 0.065×Dc≦Di≦0.13×Dc and/or 0.065×Dc≦Do≦0.13×Dc is satisfied.
摘要翻译：膨胀机包括形成有流入口和流出口的气缸，相对于旋转轴偏心地设置在气缸中的活塞，以在活塞和气缸之间形成流体室，以及将流体室分为高压侧和低压侧。气缸，活塞和叶片被布置和构造成使得膨胀器回收在流体室中减压的流体的功率。气缸具有内径Dc，流入口具有直径Di，流出口具有直径Do。满足0.065×Dc＆nlE; Di＆nlE; 0.13×Dc和/或0.065×Dc＆nlE; Do＆nlE; 0.13×Dc的关系。

28. 发明申请

US20090165480A1 Refrigeration System 有权
标题翻译：制冷系统
公开(公告)号：US20090165480A1
公开(公告)日：2009-07-02
申请号：US12226435
申请日：2007-04-16
申请人： Katsumi Sakitani , Tetsuya Oakamoto , Masakazu Okamoto , Eiji Kumakura
发明人： Katsumi Sakitani , Tetsuya Oakamoto , Masakazu Okamoto , Eiji Kumakura
IPC分类号： F25B31/00 , F25B43/02
CPC分类号： F25B31/004 , F25B1/04 , F25B9/008 , F25B9/06 , F25B13/00 , F25B2309/061 , F25B2313/02742 , F25B2400/14 , F25B2700/03
摘要： In a refrigerant circuit (11), a compressor (20) and an expander (30) are provided separately. An expander casing (34) is connected to a delivery pipe (26) of the compressor (20) and high pressure refrigerant passes through the inside of the expander casing (34). Therefore, the compressor casing (24) and the expander casing (34) are equalized in their internal pressure. An oil distribution pipe (41) for connection of an oil sump (27) of the compressor (20) and an oil sump (37) of the expander (30) is provided with an oil regulating valve (52). The oil regulating valve (52) is controlled in response to a signal outputted from an oil level sensor (51). When the oil regulating valve (52) is opened, the oil sump (27) within the compressor casing (24) and the oil sump (37) within the expander casing (34) fluidly communicate with each other whereby refrigeration oil travels through the oil distribution pipe (41).
摘要翻译：在制冷剂回路（11）中分别设置有压缩机（20）和膨胀机（30）。膨胀机壳体34与压缩机20的输送管26连接，高压制冷剂通过膨胀机壳体34的内部。因此，压缩机壳体（24）和膨胀机壳体（34）的内部压力相等。用于连接压缩机（20）的油底壳（27）和膨胀机（30）的油底壳（37）的配油管（41）设置有油调节阀（52）。油调节阀（52）根据从油位传感器（51）输出的信号进行控制。当油调节阀52打开时，压缩机壳体24内的油底壳27和膨胀机壳体34内的油底壳37彼此流体连通，由此冷冻机油穿过油分配管（41）。

29. 发明申请

US20090126398A1 Refrigeration Apparatus 审中-公开
标题翻译：制冷设备
公开(公告)号：US20090126398A1
公开(公告)日：2009-05-21
申请号：US11886996
申请日：2006-03-07
申请人： Masakazu Okamoto , Eiji Kumamura , Tetsuya Okamoto , Katsumi Sakitani
发明人： Masakazu Okamoto , Eiji Kumamura , Tetsuya Okamoto , Katsumi Sakitani
IPC分类号： F25B1/00
CPC分类号： F25B9/06 , F25B1/04 , F25B13/00 , F25B41/003 , F25B2309/061 , F25B2313/02742 , F25B2400/14 , F25B2500/01 , F25B2500/13
摘要： A buffer container (71) is connected to an outflow port (33) of an expansion mechanism (60). The buffer container (71) is shaped like a cylinder extending in the direction of refrigerant flow and has a greater transverse cross sectional area than that of the outflow port (33). The buffer container (71) contains therein a flow stabilizing plate (75) having a mesh part (75a) shaped like a circular plate. The variation in pressure is reduced by pressure supply and pressure absorption by the buffer container (71) and, in addition, refrigerant droplets are made fine in size during passage through the flow stabilizing plate (75).
摘要翻译：缓冲容器（71）与膨胀机构（60）的流出口（33）连接。缓冲容器（71）的形状类似于在制冷剂流动方向上延伸的圆柱体，并且具有比流出口（33）更大的横截面积。缓冲容器（71）内装有流动稳定板（75），该流动稳定板（75）具有形状为圆形的网状部分（75a）。通过缓冲容器（71）的压力供给和压力吸收来降低压力变化，另外，在通过流动稳定板（75）的过程中制冷剂液滴的尺寸也变细。

30. 发明申请

US20100074769A1 FLUID MACHINE 有权
标题翻译：流体机
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
IPC分类号： F04C29/04 , F04C18/02
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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