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公开(公告)号：US6039535A
公开(公告)日：2000-03-21
申请号：US102562
申请日：1998-06-23
申请人： Hiromi Kobayashi , Hideo Nishida , Haruo Miura , Takashi Eino , Kazuki Takahashi
发明人： Hiromi Kobayashi , Hideo Nishida , Haruo Miura , Takashi Eino , Kazuki Takahashi
IPC分类号： F04D29/10 , F04D29/16 , F16J15/447 , F04D29/08
CPC分类号： F04D29/102 , F04D29/106 , F04D29/162 , F04D29/167
摘要： In a fluid machine such as multistage centrifugal compressor, the pressure of a working fluid is raised with the rotation of a impeller. A shaft sealing device is mounted at the end of the rotary shaft in order to prevent the working gas of the raised pressure from leaking out of the fluid machine and then polluting the surroundings. In a case where the fluid machine operates to rotate at high speed, a labyrinth sealing device is employed for the purpose of reducing a frictional loss in the shaft sealing device. The labyrinth sealing device includes a plurality of stages of labyrinth fins which are formed on a casing or the rotary shaft, and a layer of abradable coating to-be-bitten which is formed in the surface part of the rotary shaft or the casing opposing to the labyrinth fins. The clearances between the labyrinth fins and the rotary shaft or the casing are made narrower on the low-pressure side of the labyrinth sealing device than on the high-pressure side thereof. Thus, the fluid machine is run with the minimum clearance. Moreover, even when the coating layer has been lost in contacting the labyrinth fin or by peeling off, the labyrinth fin on the low-pressure side acts as a labyrinth seal.
摘要翻译： 在诸如多级离心压缩机的流体机器中，随着叶轮的旋转，工作流体的压力升高。 轴密封装置安装在旋转轴的端部，以防止升高的压力的工作气体从流体机器泄漏，然后污染周围环境。 在流体机械高速旋转的情况下，为了减少轴封装置的摩擦损失，采用迷宫式密封装置。 迷宫式密封装置包括形成在壳体或旋转轴上的多级迷宫式散热片和形成在旋转轴的表面部分或与壳体相对的壳体上的可磨损涂层层 迷宫鳍。 迷宫式散热片与旋转轴或壳体之间的间隙在迷宫型密封装置的低压侧比在其高压侧更窄。 因此，流体机器以最小间隙运行。 此外，即使当涂层在迷宫式翅片接触或者剥离时已经失去了，低压侧的迷宫式翼片也作为迷宫式密封。
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公开(公告)号：US06435822B1
公开(公告)日：2002-08-20
申请号：US09864148
申请日：2001-05-25
申请人： Hiromi Kobayashi , Hideo Nishida , Haruo Miura , Takashi Eino , Kazuki Takahashi
发明人： Hiromi Kobayashi , Hideo Nishida , Haruo Miura , Takashi Eino , Kazuki Takahashi
IPC分类号： F04D2908
CPC分类号： F04D29/102 , F04D29/106 , F04D29/162 , F04D29/167
摘要： In a fluid machine such as multistage centrifugal compressor, the pressure of a working fluid is raised with the rotation of a impeller. A shaft sealing device is mounted at the end of the rotary shaft in order to prevent the working gas of the raised pressure from leaking out of the fluid machine and then polluting the surroundings. In a case where the fluid machine operates to rotate at high speed, a labyrinth sealing device is employed for the purpose of reducing a frictional loss in the shaft sealing device. The labyrinth sealing device includes a plurality of stages of labyrinth fins which are formed on a casing or the rotary shaft, and a layer of abradable coating to-be-bitten which is formed in the surface part of the rotary shaft or the casing opposing to the labyrinth fins. The clearances between the labyrinth fins and the rotary shaft or the casing are made narrower on the low-pressure side of the labyrinth sealing device than on the high-pressure side thereof. Thus, the fluid machine is run with the minimum clearance. Moreover, even when the coating layer has been lost in touch with the labyrinth fin or by peeling off, the labyrinth fin on the low-pressure side acts as a labyrinth seal.
摘要翻译： 在诸如多级离心压缩机的流体机器中，随着叶轮的旋转，工作流体的压力升高。 轴密封装置安装在旋转轴的端部，以防止升高的压力的工作气体从流体机器泄漏，然后污染周围环境。 在流体机械高速旋转的情况下，为了减少轴封装置的摩擦损失，采用迷宫式密封装置。 迷宫式密封装置包括形成在壳体或旋转轴上的多级迷宫式散热片和形成在旋转轴的表面部分或与壳体相对的壳体上的可磨损涂层层 迷宫鳍。 迷宫式散热片与旋转轴或壳体之间的间隙在迷宫型密封装置的低压侧比在其高压侧更窄。 因此，流体机器以最小间隙运行。 此外，即使当涂层与迷宫式翅片相接触或剥离时，低压侧的迷宫式翼片也作为迷宫式密封件。
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公开(公告)号：US06302645B1
公开(公告)日：2001-10-16
申请号：US09505191
申请日：2000-02-16
申请人： Hiromi Kobayashi , Hideo Nishida , Haruo Miura , Takashi Eino , Kazuki Takahashi
发明人： Hiromi Kobayashi , Hideo Nishida , Haruo Miura , Takashi Eino , Kazuki Takahashi
IPC分类号： F04D2908
CPC分类号： F04D29/102 , F04D29/106 , F04D29/162 , F04D29/167
摘要： In a fluid machine such as multistage centrifugal compressor, the pressure of a working fluid is raised with the rotation of a impeller. A shaft sealing device is mounted at the end of the rotary shaft in order to prevent the working gas of the raised pressure from leaking out of the fluid machine and then polluting the surroundings. In a case where the fluid machine operates to rotate at high speed, a labyrinth sealing device is employed for the purpose of reducing a frictional loss in the shaft sealing device. The labyrinth sealing device includes a plurality of stages of labyrinth fins which are formed on a casing or the rotary shaft, and a layer of abradable coating to-be-bitten which is formed in the surface part of the rotary shaft or the casing opposing to the labyrinth fins. The clearances between the labyrinth fins and the rotary shaft or the casing are made narrower on the low-pressure side of the labyrinth sealing device than on the high-pressure side thereof. Thus, the fluid machine is run with the minimum clearance. Moreover, even when the coating layer has been lost in touch with the labyrinth fin or by peeling off, the labyrinth fin on the low-pressure side acts as a labyrinth seal.
摘要翻译： 在诸如多级离心压缩机的流体机器中，随着叶轮的旋转，工作流体的压力升高。 轴密封装置安装在旋转轴的端部，以防止升高的压力的工作气体从流体机器泄漏，然后污染周围环境。 在流体机械高速旋转的情况下，为了减少轴封装置的摩擦损失，采用迷宫式密封装置。 迷宫式密封装置包括形成在壳体或旋转轴上的多级迷宫式散热片和形成在旋转轴的表面部分或与壳体相对的壳体上的可磨损涂层层 迷宫鳍。 迷宫式散热片与旋转轴或壳体之间的间隙在迷宫型密封装置的低压侧比在其高压侧更窄。 因此，流体机器以最小间隙运行。 此外，即使当涂层与迷宫式翅片相接触或剥离时，低压侧的迷宫式翼片也作为迷宫式密封件。
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公开(公告)号：US06203275B1
公开(公告)日：2001-03-20
申请号：US09142013
申请日：1998-08-31
IPC分类号： F04D2944
CPC分类号： F04D29/444 , F04D17/122
摘要： In a multi-stage centrifugal compressor, having a plurality of impellers mounted on a rotation shaft, or a single-stage centrifugal compressor, a vaned diffuser, having a plurality of vanes, is mounted at a downstream side of the impeller, and a vaneless diffuser portion is formed downstream of this vaned diffuser. A meridian plane cross-sectional shape of each of two wall surfaces forming the vaneless diffuser portion provided downstream of the vaned diffuser is such that its channel height is decreased progressively in a downstream direction. Instead of this vaneless diffuser, there can be provided a second vaned diffuser having a small number of vanes. In this case, also, two wall surfaces, forming the second vaned diffuser, are contracted progressively in the downstream direction.
摘要翻译： 在具有安装在旋转轴上的多个叶轮或单级离心式压缩机的多级离心压缩机中，具有多个叶片的叶片式扩散器安装在叶轮的下游侧，并且无叶 扩散器部分形成在该扩散器的下游。 形成设在叶片扩散器下游的无叶漫射器部分的两个壁面中的每一个的子午线截面形状使得其通道高度沿下游方向逐渐减小。 代替这种无叶漫射器，可以提供具有少量叶片的第二扇形扩散器。 在这种情况下，形成第二叶片式扩散器的两个壁面也在下游方向逐渐收缩。
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5.发明授权
公开(公告)号：US6047461A
公开(公告)日：2000-04-11
申请号：US146349
申请日：1998-09-03
CPC分类号： H02K1/278 , H02K15/03 , H02K21/12 , Y10T29/49009 , Y10T29/49012 , Y10T29/49075
摘要： A manufacturing method of a rotor for a permanent magnet-excited, high-speed electric rotary machine according to the present invention comprises, covering an outer circumferential surface of at least one permanent magnet by a fiber-reinforced plastic protection cover with prestress compressing in radial direction; inserting a steel sleeve into the at least one permanent magnet to form a permanent magnet assembly; preparing at least one permanent magnet assembly; inserting a rotor shaft into the steel sleeve while applying hydraulic pressure to an inner circumferential surface of the steel sleeve of the prepared at least one permanent magnet assembly to expand the steel sleeve; and then removing the hydraulic pressure to tight fit the at least one permanent magnet assembly onto the rotor shaft.
摘要翻译： 根据本发明的用于永磁电动高速电动旋转机的转子的制造方法包括：通过具有径向压缩的纤维增强塑料保护罩覆盖至少一个永磁体的外周面 方向; 将钢套筒插入所述至少一个永磁体中以形成永磁体组件; 制备至少一个永磁体组件; 将转子轴插入钢套筒中，同时向所制备的至少一个永磁体组件的钢套筒的内圆周表面施加液压以使钢套筒膨胀; 然后去除液压以将至少一个永磁体组件紧密地配合到转子轴上。
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公开(公告)号：US06196809B1
公开(公告)日：2001-03-06
申请号：US09023686
申请日：1998-02-13
IPC分类号： F04B2300
CPC分类号： F04D29/4206 , F04D25/16 , F04D29/5826
摘要： A low pressure-side first-stage compressor impeller and a high pressure-side second-stage compressor impeller are mounted respectively on opposite ends of a rotation shaft. A rotor of an electric motor for driving the two impellers is formed at a central portion of the rotation shaft. A stator of the motor is held by a motor casing. The motor casing, a first-stage compressor casing, which cooperates with the first-stage compressor impeller to form a first-stage compressor, and a second-stage compressor casing, which cooperates with the second-stage compressor impeller to form a second-stage compressor, are cast into an integral construction. This integral casing is further formed integrally with an intermediate cooler, disposed downstream of the first-stage compressor, and a discharge cooler disposed downstream of the second-stage compressor. The intermediate cooler and the discharge cooler are disposed below the motor casing in generally parallel relation to the rotation shaft, and the main portions of the two-stage centrifugal compressor are combined into a compact, generally rectangular parallelepiped configuration.
摘要翻译： 低压侧的第一级压缩机叶轮和高压侧的后级的压缩机叶轮分别安装在旋转轴的两端。 用于驱动两个叶轮的电动机的转子形成在旋转轴的中心部分。 马达的定子由马达壳体保持。 电动机壳体，与第一级压缩机叶轮配合形成第一级压缩机的第一级压缩机壳体和与第二级压缩机叶轮配合形成第二级压缩机叶轮的第二级压缩机壳体， 阶段压缩机，铸造成一体化结构。 该一体式外壳进一步与布置在第一级压缩机下游的中间冷却器一体地形成，并且设置在第二级压缩机的下游。 中间冷却器和排放冷却器以大致平行于旋转轴的方式设置在电动机壳体下方，并且两级离心压缩机的主要部分组合成紧凑的大致长方体形状。
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7.发明授权Multi-stage compressor having first and second passages for cooling a motor during load and non-load operation 失效具有用于在负载和非负载操作期间冷却电动机的第一和第二通道的多级压缩机
公开(公告)号：US5980218A
公开(公告)日：1999-11-09
申请号：US921604
申请日：1997-09-02
IPC分类号： F04D13/06 , F04D17/12 , F04D25/16 , F04D29/04 , F04D29/058 , F04D29/58 , F04B25/00 , F04B39/06
CPC分类号： F04D29/058 , F04D17/12 , F04D25/06 , F04D29/5806 , F04D29/584 , F16C32/0489 , F16C37/005
摘要： A multi-stage compressor having at least two compressor stages comprises an inter-cooler provided between the stages for cooling a gas being discharged from a compressor in the preceding stage. The compressor stages are driven by a common electric motor, of which a rotating shaft is supported by magnetic bearings. A part of the gas cooled by the inter-cooler and a part of the work gas discharged from a bleed valve provided down-stream of a rear stage of the compressor are selectively introduced into the electric motor or the magnetic bearings. Thus, at the time of load operation the gas discharged from the inter-cooler is introduced into the motor or the magnetic bearings to cool them, and at the time of non-load operation the gas discharged from the bleed valve is introduced into the motor or the magnetic bearings to cool them. It is possible to ensure a flow rate of gas required for cooling the motor during non-load operation with economy during load operation.
摘要翻译： 具有至少两个压缩机级的多级压缩机包括设置在级之间的中间冷却器，用于在前级中冷却从压缩机排出的气体。 压缩机级由公共电动机驱动，其中旋转轴由磁性轴承支撑。 通过中间冷却器冷却的气体的一部分和从设置在压缩机的后级下游的排气阀排出的一部分工作气体被选择性地引入电动机或磁性轴承。 因此，在负载运转时，将从中间冷却器排出的气体引入电动机或磁性轴承中进行冷却，在非负载运转时，从排气阀排出的气体被引入到电动机 或磁轴承来冷却它们。 可以在负载运行时经济地确保在非负载运行期间冷却电机所需的气体流量。
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公开(公告)号：US07172015B2
公开(公告)日：2007-02-06
申请号：US10920359
申请日：2004-08-18
申请人： Haruo Miura , Kazuki Takahashi , Seiji Tsuru , Minoru Taniyama , Tomohiro Naruse , Toshio Hattori
发明人： Haruo Miura , Kazuki Takahashi , Seiji Tsuru , Minoru Taniyama , Tomohiro Naruse , Toshio Hattori
CPC分类号： F28D9/0062 , F28F3/025 , F28F9/00 , F28F2250/102
摘要： A heat exchanger used in a screw air compressor has a low temperature chamber through which low temperature fluid flows and a high temperature chamber through which high temperature fluid flows. The low temperature chamber and the high temperature chamber are separated by a partition plate. The high temperature chambers and the low temperature chambers are alternately arranged in layers, so that the low temperature chambers are disposed at both ends in a layered direction. Additionally, the flowing direction of the low temperature fluid in the low temperature chambers and the flowing direction of the high temperature fluid in the high temperature chambers are substantially orthogonal to each other.
摘要翻译： 用于螺杆空气压缩机的热交换器具有低温流体流过的低温室和高温流体流过的高温室。 低温室和高温室由隔板隔开。 高温室和低温室交替排列成层状，使得低温室分层设置在两端。 此外，低温室中的低温流体的流动方向和高温室中的高温流体的流动方向基本上彼此正交。
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公开(公告)号：US20050082044A1
公开(公告)日：2005-04-21
申请号：US10920359
申请日：2004-08-18
申请人： Haruo Miura , Kazuki Takahashi , Seiji Tsuru , Minoru Taniyama , Tomohiro Naruse , Toshio Hattori
发明人： Haruo Miura , Kazuki Takahashi , Seiji Tsuru , Minoru Taniyama , Tomohiro Naruse , Toshio Hattori
CPC分类号： F28D9/0062 , F28F3/025 , F28F9/00 , F28F2250/102
摘要： A heat exchanger used in a screw air compressor has a low temperature chamber through which low temperature fluid flows and a high temperature chamber through which high temperature fluid flows. The low temperature chamber and the high temperature chamber are separated by a partition plate. The high temperature chambers and the low temperature chambers are alternately arranged in layers, so that the low temperature chambers are disposed at both ends in a layered direction. Additionally, the flowing direction of the low temperature fluid in the low temperature chambers and the flowing direction of the high temperature fluid in the high temperature chambers are substantially orthogonal to each other.
摘要翻译： 用于螺杆空气压缩机的热交换器具有低温流体流过的低温室和高温流体流过的高温室。 低温室和高温室由隔板隔开。 高温室和低温室交替排列成层状，使得低温室分层设置在两端。 此外，低温室中的低温流体的流动方向和高温室中的高温流体的流动方向基本上彼此正交。
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公开(公告)号：US06572350B2
公开(公告)日：2003-06-03
申请号：US10080666
申请日：2002-02-25
申请人： Kazuki Takahashi , Seiji Tsuru , Minoru Taniyama , Haruo Miura
发明人： Kazuki Takahashi , Seiji Tsuru , Minoru Taniyama , Haruo Miura
IPC分类号： F03C200
CPC分类号： F04C29/04 , F04C23/00 , F04C23/001 , F04C29/005 , F04C29/023 , Y10T137/2521 , Y10T137/86381
摘要： A package-type screw compressor includes a low-pressure stage state compressor and a high-pressure stage compressor. Motive power is transmitted from an electric motor to the two compressors via a speed increaser. The discharge gas, compressed and heated to a high temperature by the low-pressure stage compressor, is cooled by an intercooler. The discharge gas, compressed and heated to a high temperature by the high-pressure stage compressor, is cooled by an aftercooler. A casing of the intercooler and that of the aftercooler are formed integrally with a speed increaser casing, reducing the number of component parts. A cooler portion, formed by the intercooler and the aftercooler, is spaced from the speed increaser casing, thereby preventing heat, produced by the compressed air, from being transmitted to the speed increaser casing.
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