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1. 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。

2. 发明授权

US07784303B2 Expander 有权
标题翻译：扩张器
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。

3. 发明申请

US20090113907A1 Refrigeration Apparatus 审中-公开
标题翻译：制冷设备
公开(公告)号：US20090113907A1
公开(公告)日：2009-05-07
申请号：US11662206
申请日：2005-09-09
申请人： Katsumi Sakitani , Michio Moriwaki , Yume Inokuchi , Tetsuya Okamoto , Yoshinari Sasaki , Eiji Kumakura , Masakazu Okamoto
发明人： Katsumi Sakitani , Michio Moriwaki , Yume Inokuchi , Tetsuya Okamoto , Yoshinari Sasaki , Eiji Kumakura , Masakazu Okamoto
IPC分类号： F25B1/00 , F25B41/04
CPC分类号： F25B13/00 , F25B1/04 , F25B9/008 , F25B9/06 , F25B2309/061 , F25B2313/0272 , F25B2600/17 , F25B2600/2513
摘要： A refrigeration apparatus having a refrigerant circuit (20) for performing a vapor compression refrigeration cycle is disclosed. Refrigerant in a wet state, which provides an optimum coefficient of performance (COP) for a present operating condition, is drawn into the compressor (31). If the operating condition changes, the opening of an expansion valve (23) is adjusted such that the suction refrigerant of the compressor (31) is brought into a wet state which provides an optimum coefficient of performance for a new operating condition.
摘要翻译：公开了一种具有用于进行蒸气压缩制冷循环的制冷剂回路（20）的制冷装置。将处于工作状态的最佳性能系数（COP）提供到湿态的制冷剂被吸入压缩机（31）。如果操作条件改变，则调节膨胀阀（23）的打开，使得压缩机（31）的吸入制冷剂处于潮湿状态，从而为新的操作条件提供最佳的性能系数。

4. 发明授权

US07896627B2 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：US07896627B2
公开(公告)日：2011-03-01
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： 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。

5. 发明授权

US07628592B2 Fluid machine having reduced heat input to fluid 有权
标题翻译：流体机械将热量输入减少到流体
公开(公告)号：US07628592B2
公开(公告)日：2009-12-08
申请号：US10592803
申请日：2005-03-09
申请人： Tetsuya Okamoto , Eiji Kumakura , Masakazu Okamoto , Michio Moriwaki , Katsumi Sakitani
发明人： Tetsuya Okamoto , Eiji Kumakura , Masakazu Okamoto , Michio Moriwaki , Katsumi Sakitani
IPC分类号： F01C1/30 , F03C2/00 , F04C18/00
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。

6. 发明申请

US20080232992A1 Fluid Machine 有权
标题翻译：流体机
公开(公告)号：US20080232992A1
公开(公告)日：2008-09-25
申请号：US10592803
申请日：2005-03-09
申请人： Tetsuya Okamoto , Eiji Kumakura , Masakazu Okamoto , Michio Moriwaki , Katsumi Sakitani
发明人： Tetsuya Okamoto , Eiji Kumakura , Masakazu Okamoto , Michio Moriwaki , Katsumi Sakitani
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。

7. 发明授权

US07419369B2 Displacement type expansion machine and fluid machine 有权
标题翻译：排量式膨胀机和流体机
公开(公告)号：US07419369B2
公开(公告)日：2008-09-02
申请号：US10538069
申请日：2003-12-03
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： F01C1/30 , F03C2/00
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。

8. 发明申请

US20060165542A1 Volume expander and fluid machine 有权
标题翻译：体积膨胀机和流体机
公开(公告)号：US20060165542A1
公开(公告)日：2006-07-27
申请号：US10538069
申请日：2003-12-03
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： 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。

9. 发明申请

US20090007590A1 Refrigeration System 审中-公开
标题翻译：制冷系统
公开(公告)号：US20090007590A1
公开(公告)日：2009-01-08
申请号：US10593038
申请日：2005-03-09
申请人： Katsumi Sakitani , Eiji Kumakura , Tetsuya Okamoto , Michio Moriwaki , Masakazu Okamoto
发明人： Katsumi Sakitani , Eiji Kumakura , Tetsuya Okamoto , Michio Moriwaki , Masakazu Okamoto
IPC分类号： F25B41/00
CPC分类号： F25B9/06 , F01C1/46 , F01C11/004 , F25B1/04 , F25B9/008 , F25B2309/061
摘要： The low-side pressure of a refrigeration cycle and the refrigerant temperature at the exit of a gas cooler under reference operating conditions are employed as a reference low pressure and a reference refrigerant temperature, respectively, and the high-side pressure of the refrigeration cycle at which the COP of the refrigeration cycle reaches a maximum value under the reference operating conditions is employed as a reference high pressure. In this case, the volume v2 of a first fluid chamber (72) in the expander (60) just after the closing off of fluid communication from its inlet channel and the volume v3 of a second fluid chamber (82) in the expander (60) just before the provision of fluid communication with its outlet channel are set to v2=ρ1v1r/ρ2 and v3=ρ2v2/ρ3, respectively, where ρ1 is the density of saturated gas refrigerant at the reference low pressure, ρ2 is the density of refrigerant at the reference high pressure and the reference refrigerant temperature, ρ3 is the density of refrigerant adiabatically expanded from a condition of the reference high pressure and the reference refrigerant temperature into a condition of the reference low pressure, v1 is the volume of the fluid chamber in the compressor just after the closing off of fluid communication from its suction channel, and r is the rotational speed ratio of the compressor to the expander.
摘要翻译：在参考操作条件下，制冷循环的低侧压力和气体冷却器出口处的制冷剂温度分别用作参考低压和参考制冷剂温度，并且制冷循环的高侧压力在参考操作条件下制冷循环的COP达到最大值的COP被用作参考高压。在这种情况下，膨胀器（60）中刚刚从其入口通道关闭流体连通之后的第一流体室（72）的体积v2和膨胀器（60）中的第二流体室（82）的体积v3 ）恰好在与其出口通道进行流体连通之前分别设定为v2 = rho1v1r / rho2和v3 = rho2v2 / rho3，其中rho1是参考低压时饱和气体制冷剂的密度，rho2是制冷剂的密度在参考高压和参考制冷剂温度下，rho3是从参考高压和参考制冷剂温度的条件下绝热膨胀到制冷剂温度的制冷剂的密度，v1是流体室的体积刚刚从其吸入通道关闭流体连通之后的压缩机，r是压缩机与膨胀机的转速比。

10. 发明申请

US20070196227A1 Rotary expander 有权
标题翻译：旋转式膨胀机
公开(公告)号：US20070196227A1
公开(公告)日：2007-08-23
申请号：US10591918
申请日：2005-03-04
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： F03C2/00 , F01C1/02
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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