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公开(公告)号：US07896627B2
公开(公告)日：2011-03-01
申请号：US10570878
申请日：2004-09-03
IPC分类号： F01C1/30
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 is provided with two rotary mechanism parts which differ from each other in displacement volume. The outflow side of the first rotary mechanism part of small displacement volume is fluidly connected to the inflow side of the second rotary mechanism part of large displacement volume. The processes by which the volume of a first low-pressure chamber in the first rotary mechanism part decreases and the volume of a second high-pressure chamber in the second rotary mechanism part increases are respectively in sync. Refrigerant at high pressure is first introduced into a first high-pressure chamber of the first rotary mechanism part. Thereafter, this high-pressure refrigerant passes through a communicating passage and then flows by way of the first low-pressure chamber into the second high-pressure chamber while expanding. The after-expansion refrigerant flows out to an outflow port from a second low-pressure chamber of the second rotary mechanism part.
摘要翻译： 旋转型膨胀机设置有两个在排量上彼此不同的旋转机构部件。 小排量容积的第一旋转机构部的流出侧流体连接到大排量体积的第二旋转机构部的流入侧。 第一旋转机构部分中的第一低压室的容积减小并且第二旋转机构部中的第二高压室的体积分别增加的过程分别同步。 首先将高压制冷剂引入第一旋转机构部的第一高压室。 此后，该高压制冷剂通过连通通路，然后通过第一低压室在膨胀的同时流入第二高压室。 后膨胀制冷剂从第二旋转机构部的第二低压室流出到流出口。
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公开(公告)号：US07628592B2
公开(公告)日：2009-12-08
申请号：US10592803
申请日：2005-03-09
CPC分类号： F04C29/023 , F04C23/008
摘要： In a compression/expansion unit (30) serving as a fluid machine, both a compression mechanism (50) and an expansion mechanism (60) are housed in a single casing (31). An oil supply passageway (90) is formed in a shaft (40) by which the compression mechanism (50) and the expansion mechanism (60) are coupled together. Refrigeration oil accumulated in the bottom of the casing (31) is drawn up into the oil supply passageway (90) and is supplied to the compression mechanism (50) and to the expansion mechanism (60). Surplus refrigeration oil, which is supplied to neither of the compression and expansion mechanisms (50) and (60), is discharged out of the terminating end of the oil supply passageway (90) which opens at the upper end of the shaft (40). Thereafter, the surplus refrigeration oil flows into an oil return pipe (102) from a lead-out hole (101) and is returned back towards a second space (39). This reduces the amount of heat input to the fluid flowing through the expansion mechanism from the surplus refrigeration oil which has not been utilized to lubricate the compression and expansion mechanisms.
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）都容纳在单个壳体（31）中。 供油通道（90）形成在轴（40）中，压缩机构（50）和膨胀机构（60）通过该轴连接在一起。 积存在壳体（31）的底部的制冷油被抽吸到供油通路（90）内，供给压缩机构（50）和膨胀机构（60）。 供应到压缩和膨胀机构（50）和（60）的剩余冷冻机油都从在轴（40）的上端开口的供油通道（90）的终端排出， 。 此后，剩余的冷冻机油从出口孔（101）流入回油管（102），并向第二空间（39）返回。 这就减少了从未用于润滑压缩和膨胀机构的剩余冷冻机油输入流经膨胀机构的流体的热量。
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公开(公告)号：US20080232992A1
公开(公告)日：2008-09-25
申请号：US10592803
申请日：2005-03-09
IPC分类号： F01C21/04
CPC分类号： F04C29/023 , F04C23/008
摘要： In a compression/expansion unit (30) serving as a fluid machine, both a compression mechanism (50) and an expansion mechanism (60) are housed in a single casing (31). An oil supply passageway (90) is formed in a shaft (40) by which the compression mechanism (50) and the expansion mechanism (60) are coupled together. Refrigeration oil accumulated in the bottom of the casing (31) is drawn up into the oil supply passageway (90) end is supplied to the compression mechanism (50) and to the expansion mechanism (60). Surplus refrigeration oil, which is supplied to neither of the compression and expansion mechanisms (50) and (60), is discharged out of the terminating end of the oil supply passageway (90) which opens at the upper end of the shaft (40). Thereafter, the surplus refrigeration oil flows into an oil return pipe (102) from a lead-out hole (101) and is returned back towards a second space (39). This reduces the amount of heat input to the fluid flowing through the expansion mechanism from the surplus refrigeration oil which has not been utilized to lubricate the compression and expansion mechanisms.
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）都容纳在单个壳体（31）中。 供油通道（90）形成在轴（40）中，压缩机构（50）和膨胀机构（60）通过该轴连接在一起。 积存在壳体（31）的底部的制冷油被抽吸到供油通路（90）的端部被供应到压缩机构（50）和膨胀机构（60）。 供应到压缩和膨胀机构（50）和（60）的剩余冷冻机油都从在轴（40）的上端开口的供油通道（90）的终端排出， 。 此后，剩余的冷冻机油从出口孔（101）流入回油管（102），并向第二空间（39）返回。 这就减少了从未用于润滑压缩和膨胀机构的剩余冷冻机油输入流经膨胀机构的流体的热量。
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公开(公告)号：US07419369B2
公开(公告)日：2008-09-02
申请号：US10538069
申请日：2003-12-03
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：US07918096B2
公开(公告)日：2011-04-05
申请号：US12226435
申请日：2007-04-16
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）。
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公开(公告)号：US07674097B2
公开(公告)日：2010-03-09
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：US07618245B2
公开(公告)日：2009-11-17
申请号：US11664293
申请日：2005-09-30
申请人： Eiji Kumakura , Masakazu Okamoto , Tetsuya Okamoto
发明人： Eiji Kumakura , Masakazu Okamoto , Tetsuya Okamoto
CPC分类号： H02K9/193 , F01C1/356 , F01D5/026 , F01D15/005 , F01D15/08 , F04C18/3562 , F04C23/001 , F04C23/003 , F04C23/008 , F04C27/009 , F04C29/023 , F04C2240/60 , F05D2240/55 , H02K1/32 , H02K7/003 , H02K7/14
摘要： Oil supply grooves (74, 84) are formed respectively in a rotating shaft (70) of a compression mechanism (50) integral with an electric motor (40) and in a rotating shaft (80) of an expansion mechanism (60). The rotating shafts (70, 80) are coupled together by engagement between an engagement convex portion (85) and an engagement concave portion (75) which are formed respectively in shaft ends of the rotating shafts (70, 80). And, a seal groove (S) is formed in the peripheral surface of the engagement convex portion (85) and an O-ring (R) is engaged into the seal groove (S). Hereby, lubrication oil leakage from between the engagement convex portion (85) and the engagement concave portion (75) is prevented.
摘要翻译： 供油槽（74,84）分别形成在与电动机（40）一体的压缩机构（50）的旋转轴（70）和膨胀机构（60）的旋转轴（80）中。 旋转轴（70,80）通过分别形成在旋转轴（70,80）的轴端中的接合凸部（85）和接合凹部（75）之间的接合而联接在一起。 并且，在接合凸部（85）的周面形成有密封槽（S），并且O形环（R）与密封槽（S）接合。 因此，防止从接合凸部（85）和接合凹部（75）之间泄漏的润滑油。
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公开(公告)号：US20090277213A1
公开(公告)日：2009-11-12
申请号：US12226135
申请日：2007-04-16
IPC分类号： F25B43/02
CPC分类号： F25B31/004 , F25B9/06 , F25B2341/0016 , F25B2700/03
摘要： A compressor (20) and an expander (30) are provided in a refrigerant circuit (11) of an air conditioner (10). 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). Internal spaces of a compressor casing (24) and an expander casing (34) communicate with each other through an equalizing pipe (41). An oil pipe (42) connecting the compressor casing (24) and the expander casing (34) is provided with an oil amount adjusting valve (52) operated on the basis of an output signal of an oil level sensor (51). When the oil amount adjusting valve (52) is opened, the oil reservoir (27) in the compressor casing (24) and the oil reservoir (37) in the expander casing (34) communicate with each other to allow the refrigerator oil to flow through the oil pipe (42).
摘要翻译： 在空调装置（10）的制冷剂回路（11）上设有压缩机（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）的内部空间通过均衡管道（41）相互连通。 连接压缩机壳体（24）和膨胀机壳体（34）的油管（42）设置有基于油位传感器（51）的输出信号而操作的油量调节阀（52）。 当油量调节阀（52）打开时，压缩机壳体（24）中的储油部（27）和膨胀机壳体（34）中的储油部（37）相互连通，使冷冻机油流通 通过油管（42）。
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公开(公告)号：US20090183524A1
公开(公告)日：2009-07-23
申请号：US12302792
申请日：2007-06-08
IPC分类号： F25B1/00
CPC分类号： F25B9/06 , F25B2309/061 , F25B2500/26 , F25B2600/021 , Y02B30/741
摘要： A refrigerating apparatus (10) includes a refrigerant circuit (11) in which a compressor (20), a radiator (14), an expander (30), and a cooler (15) are connected to each other in order through refrigerant pipes, in which a rotating shaft (22) of a motor is connected to a compression mechanism (21) included in the compressor (20) while a rotating shaft (32) of a generator (33) is connected to an expansion mechanism (31) included in the expander (30). The refrigerating apparatus (10) further includes an electric power input mechanism (41, 43) for allowing the generator (33) to function as a motor. This secures the operation of the expander (30) at a start of the apparatus to secure the start of a system, thereby attaining reliable control of the start-up performance at the start.
摘要翻译： 制冷装置（10）包括制冷剂回路（11），压缩机（20），散热器（14），膨胀机（30）和冷却器（15）依次通过制冷剂管道彼此连接， 其中电动机的旋转轴（22）连接到包括在压缩机（20）中的压缩机构（21），同时发电机（33）的旋转轴（32）连接到包括的膨胀机构（31） 在扩展器（30）中。 制冷装置（10）还包括用于允许发电机（33）用作电动机的电力输入机构（41,43）。 这确保了在设备启动时扩展器（30）的操作以确保系统的启动，从而在开始时实现对启动性能的可靠控制。
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公开(公告)号：US20080274001A1
公开(公告)日：2008-11-06
申请号：US10592869
申请日：2005-03-15
CPC分类号： F16J15/324 , F01C1/3564 , F01C19/08
摘要： The upper and lower end surfaces (67b, 67c) of a rotary piston (67) are formed with annular seal grooves (91) extending along the annular end surfaces (67b, 67c), and an annular lip seal (92) is fitted in each of the seal grooves (91). Thereby, the lubricating oil fed from oil feed grooves (49) in the shaft (40) rarely flows from between the upper and lower end surfaces (67b, 67c) of the rotary piston (67) and front and rear heads (61, 62) and into the fluid chamber (65) of a cylinder (63), so that shortage of lubricating oil is eliminated.
摘要翻译： 旋转活塞（67）的上下端面（67b，67c）形成有沿着环形端面（67b，67c）延伸的环形密封槽（91）和环形唇形密封件 ）安装在每个密封槽（91）中。 因此，从轴40中的供油槽49供给的润滑油很少从旋转活塞67的上端面67b，下端面67c和前后端头61 ，62）并进入气缸（63）的流体室（65），从而消除了润滑油的不足。
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