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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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4.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：US5516263A
公开(公告)日：1996-05-14
申请号：US232668
申请日：1994-04-25
CPC分类号： F04D29/444 , F05D2250/52
摘要： A centrifugal compressor comprises a centrifugal impeller and a vaned diffuser. The diffuser includes a pair of diffuser plates and a plurality of guide vanes arranged between the pair of diffuser plates in a circular cascade manner. The guide vanes are equal in leading-edge radius to each other, but are different in length from each other. At least one short guide vane is arranged between the adjacent long guide vanes. The total number of the guide vanes is more than the number of blades of the impeller. A throat is formed in only a part of flow passages between the guide vanes.
摘要翻译： 离心压缩机包括离心式叶轮和带叶片的扩散器。 扩散器包括一对扩散器板和以圆形级联方式布置在该对扩散器板之间的多个导向叶片。 导向叶片的前缘半径彼此相等，但彼此的长度不同。 在相邻的长导叶之间布置有至少一个简短的导叶。 导向叶片的总数大于叶轮的叶片数量。 喉部仅形成在导叶之间的流动通道的一部分。
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6.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：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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公开(公告)号：US06692224B2
公开(公告)日：2004-02-17
申请号：US10097611
申请日：2002-03-15
申请人： Haruo Miura , Kazuo Takeda , Naohiko Takahashi , Hideo Nishida , Hiromi Kobayashi , Tomoyuki Ishikawa
发明人： Haruo Miura , Kazuo Takeda , Naohiko Takahashi , Hideo Nishida , Hiromi Kobayashi , Tomoyuki Ishikawa
IPC分类号： F04D2958
CPC分类号： F04D25/163 , F04D29/5826
摘要： A turbo compressor, comprising two (2) pieces of rotation shafts, being disposed in parallel with each other, wherein impellers are attached on both ends of one of the rotation shafts, thereby to build up a first-stage compressor and a second-stage compressor, while an impeller on one end of the other rotation shaft, thereby to build up a third-stage compressor. In a lower side of each of the compressors, an intercooler and an after-cooler are disposed in alignment with, for cooling down an operation gas compressed in each stage. The operation gas is guided into the first-stage compressor on a side opposing to a motor, into the second-stage compressor on a side of the motor, and into the third-stage compressor on the side opposing to the motor, in the order thereof.
摘要翻译： 一种涡轮压缩机，包括两个彼此平行地设置的旋转轴（2），其中叶轮安装在一个旋转轴的两端，从而构建第一级压缩机和第二级 压缩机，同时在另一旋转轴的一端上的叶轮，从而构建第三级压缩机。 在每个压缩机的下侧，中间冷却器和后冷却器设置成对准，以冷却在每个级中压缩的操作气体。 操作气体在与电动机相对的一侧被引导到第一级压缩机中，并且在电动机一侧的第二级压缩机中被引导到与电动机相对的一侧的第三级压缩机中 其中。
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公开(公告)号：US5062766A
公开(公告)日：1991-11-05
申请号：US406299
申请日：1989-09-12
申请人： Haruo Miura , Yasuo Fukushima , Hideo Nishida , Hiromi Kobayashi , Takeo Takagi
发明人： Haruo Miura , Yasuo Fukushima , Hideo Nishida , Hiromi Kobayashi , Takeo Takagi
CPC分类号： F01D3/02 , F04D17/122 , F04D29/444 , F04D29/5826 , F05D2250/52
摘要： A single-shaft multi-staged turbo compressor capable of compressing a gas at a large flow rate and with a high pressure ratio has a first impeller group composed of at least one oblique-flow impeller and a second impeller group composed of at least one centrifugal impeller. The impellers of the first and second groups are mounted on a common impeller shaft in a back-to-back relation.
摘要翻译： 能够以大流量和高压比压缩气体的单轴多级涡轮压缩机具有由至少一个倾斜流动叶轮和由至少一个离心力组成的第二叶轮组构成的第一叶轮组， 叶轮。 第一和第二组的叶轮以背对背的关系安装在公共的叶轮轴上。
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公开(公告)号：US5709531A
公开(公告)日：1998-01-20
申请号：US600633
申请日：1996-02-13
CPC分类号： F04D29/444 , F05D2250/52
摘要： A centrifugal compressor comprises a centrifugal impeller and a vaned diffuser. The diffuser includes a pair of diffuser plates and a plurality of guide vanes arranged between the pair of diffuser plates in a circular cascade manner. The guide vanes are equal in leading-edge radius to each other, but are different in length from each other. At least one short guide vane is arranged between the adjacent long guide vanes. The total number of the guide vanes is more than the number of blades of the impeller. A throat is formed on one but not the other of flow passages between the guide vanes.
摘要翻译： 离心压缩机包括离心式叶轮和带叶片的扩散器。 扩散器包括一对扩散器板和以圆形级联方式布置在该对扩散器板之间的多个导向叶片。 导向叶片的前缘半径彼此相等，但彼此的长度不同。 在相邻的长导叶之间布置有至少一个简短的导叶。 导向叶片的总数大于叶轮的叶片数量。 在引导叶片之间的流动通道中的一个而不是另一个上形成喉部。
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