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。

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

IPC分类号： F01D3/02 ,  F04D17/12 ,  F04D29/44 ,  F04D29/58

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。

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。

公开(公告)号：US5516263A

公开(公告)日：1996-05-14

申请号：US232668

申请日：1994-04-25

申请人： Hideo Nishida ,  Hiromi Kobayashi ,  Haruo Miura ,  Hiroto Yoshikai ,  Sadashi Tanaka

发明人： Hideo Nishida ,  Hiromi Kobayashi ,  Haruo Miura ,  Hiroto Yoshikai ,  Sadashi Tanaka

IPC分类号： F04D29/28 ,  F04D29/44 ,  F04D29/46

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。

公开(公告)号：US4938661A

公开(公告)日：1990-07-03

申请号：US404597

申请日：1989-09-08

申请人： Hiromi Kobayashi ,  Hideo Nishida ,  Haruo Miura

发明人： Hiromi Kobayashi ,  Hideo Nishida ,  Haruo Miura

IPC分类号： F04D1/08 ,  F04D17/12 ,  F04D29/44

CPC分类号： F04D29/444 ,  F04D17/122

摘要： A multistage centrifugal compressor has a shaft rotatable on an axis and a plurality of centrifugal impellers fixed on the shaft and having outlets at outer peripheries thereof. Conduits connect the impellers to from a path for fluid undergoing multi-stage compression by the impellers from a suction side to a delivery side. The conduits including a plurality of diffusers arranged radially outwardly from the impellers, each impeller and associated diffuser constituting a stage. At least two of the diffusers are vaned diffusers provided with vanes having leading edges at their inlet ends. To provide high efficiency combined with low risk of rotating stalls, among the vaned diffusers, the ratio of diffuser vane leading edge radius to impeller outlet radius increases along the fluid path from the delivery of the compressor to the suction side.

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。

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。

公开(公告)号：US5709531A

公开(公告)日：1998-01-20

申请号：US600633

申请日：1996-02-13

申请人： Hideo Nishida ,  Hiromi Kobayashi ,  Haruo Miura ,  Hiroto Yoshikai ,  Sadashi Tanaka

发明人： Hideo Nishida ,  Hiromi Kobayashi ,  Haruo Miura ,  Hiroto Yoshikai ,  Sadashi Tanaka

IPC分类号： F04D29/28 ,  F04D29/44 ,  F04D29/46

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。

公开(公告)号：US5228832A

公开(公告)日：1993-07-20

申请号：US920172

申请日：1992-07-27

申请人： Hideo Nishida ,  Hiromi Kobayashi ,  Haruo Miura ,  Takeo Takagi

发明人： Hideo Nishida ,  Hiromi Kobayashi ,  Haruo Miura ,  Takeo Takagi

IPC分类号： F04D17/06 ,  F04D29/44 ,  F04D29/62

CPC分类号： F04D29/624 ,  F04D17/06 ,  F04D29/444 ,  F05D2250/52

摘要： A compressor is disclosed are disposed in which a diffuser flow passage is curved to a radial direction in the vicinity of an outlet of a mixed-flow impeller, and guide vanes are disposed in which each is of a height (projecting into the diffuser flow passage in a direction substantially transverse to the direction of flow) that is less than the meridional flow passage width such that the minimum inlet radius is larger than a maximum radius at the outlet of the mixed-flow impeller and are arranged in the form of a circular cascade at the curved portion on a flow passage surface of the diffuser plate located on a shroud side. Thus, it is possible to keep uniform the flow within the diffuser and to enhance the performance of the compressor. In addition, the axial length of the compressor may be shortened to thereby make the compressor compact in size.

摘要翻译： 公开了一种压缩机，其中扩散器流动通道在混合流动叶轮的出口附近向径向弯曲，并且设置导向叶片，其中各个高度（突出到扩散器流动通道中） 在大致横向于流动方向的方向上），其小于子午线通道宽度，使得最小入口半径大于混合流动叶轮出口处的最大半径，并且以圆形 在位于护罩侧的扩散板的流路表面上的弯曲部分处串联。 因此，可以使扩散器内的流量保持均匀，并提高压缩机的性能。 此外，可以缩短压缩机的轴向长度，从而使压缩机的尺寸更小。

公开(公告)号：US08313290B2

公开(公告)日：2012-11-20

申请号：US12488910

申请日：2009-06-22

申请人： Masanori Tanaka ,  Hideo Nishida ,  Hiromi Kobayashi ,  Tetsuya Kuwano ,  Toshio Itou

发明人： Masanori Tanaka ,  Hideo Nishida ,  Hiromi Kobayashi ,  Tetsuya Kuwano ,  Toshio Itou

IPC分类号： F04D29/44

CPC分类号： F04D29/441

摘要： In a high pressure centrifugal compressor, the occurrence of rotating stall noticeable in a comparatively-low specific speed wheel stage is prevented, thereby high efficient fluid performance is obtained and reliability is improved. The centrifugal compressor has a first vaneless diffuser with a constant flow channel height on the downstream side of an impeller, and a second vaneless diffuser in which the flow channel height decreases in a flow direction from an inlet to an outlet on the downstream side of the first vaneless diffuser. These diffusers are combined with an impeller using thick blades.

摘要翻译： 在高压离心式压缩机中，防止了在比较低的特定速度车轮台处显示的转动失速的发生，从而获得了高效率的流体性能，并提高了可靠性。 离心压缩机具有在叶轮的下游侧具有恒定的流动通道高度的第一无叶漫射器和第二无叶漫射器，其中流动通道高度在流动方向上从入口到下游侧的出口减小 第一个无叶漫射器。 这些扩散器与使用厚叶片的叶轮组合。