公开(公告)号：US08075260B2

公开(公告)日：2011-12-13

申请号：US11698211

申请日：2007-01-26

申请人： Takashi Aki ,  Akira Manabe ,  Sadashi Tanaka ,  Takaki Fukuchi

发明人： Takashi Aki ,  Akira Manabe ,  Sadashi Tanaka ,  Takaki Fukuchi

IPC分类号： F04D29/44

CPC分类号： F04D29/445 ,  F04D1/063

摘要： A centrifugal turbomachinery in accordance with the present invention can lower a fluid loss in a return flow path. In the centrifugal turbomachinery, a plurality of centrifugal impellers is attached to a rotating shaft, and the centrifugal turbomachinery is provided with a diffuser having a plurality of blades introducing a fluid boosted by a front stage impeller to a rear stage impeller, and a return flow path means. The return flow path means has a side plate arranged in a back surface side of the front stage impeller, a plate opposing the side plate and arranged in a front surface side of the rear stage impeller, and a plurality of blades arranged between the side plate and the plate so as to be spaced in a peripheral direction. A maximum diameter portion of the side plate is changed in the peripheral direction.

摘要翻译： 根据本发明的离心式涡轮机械可以降低回流路径中的流体损失。 在离心式涡轮机械中，多个离心式叶轮连接在旋转轴上，离心式涡轮机械设置有扩散器，该扩散器具有多个叶片，将由前级叶轮升压的流体引入后级叶轮，回流 路径意味着。 返回流路装置具有布置在前级叶轮的后表面侧的侧板，与侧板相对的板，并布置在后级叶轮的前表面侧，并且多个叶片布置在侧板之间 和板沿周向隔开。 侧板的最大直径部分沿圆周方向改变。

公开(公告)号：US20070217909A1

公开(公告)日：2007-09-20

申请号：US11698211

申请日：2007-01-26

申请人： Takashi Aki ,  Akira Manabe ,  Sadashi Tanaka ,  Takaki Fukuchi

发明人： Takashi Aki ,  Akira Manabe ,  Sadashi Tanaka ,  Takaki Fukuchi

IPC分类号： F04D29/44

CPC分类号： F04D29/445 ,  F04D1/063

摘要： A centrifugal turbomachinery in accordance with the present invention can lower a fluid loss in a return flow path. In the centrifugal turbomachinery, a plurality of centrifugal impellers is attached to a rotating shaft, and the centrifugal turbomachinery is provided with a diffuser having a plurality of blades introducing a fluid boosted by a front stage impeller to a rear stage impeller, and a return flow path means. The return flow path means has a side plate arranged in a back surface side of the front stage impeller, a plate opposing the side plate and arranged in a front surface side of the rear stage impeller, and a plurality of blades arranged between the side plate and the plate so as to be spaced in a peripheral direction. A maximum diameter portion of the side plate is changed in the peripheral direction.

摘要翻译： 根据本发明的离心式涡轮机械可以降低回流路径中的流体损失。 在离心式涡轮机械中，多个离心式叶轮连接在旋转轴上，离心式涡轮机械设置有扩散器，该扩散器具有多个叶片，将由前级叶轮升压的流体引入后级叶轮， 路径意味着。 返回流路装置具有布置在前级叶轮的后表面侧的侧板，与侧板相对的板，并布置在后级叶轮的前表面侧，并且多个叶片布置在侧板之间 和板沿周向隔开。 侧板的最大直径部分沿圆周方向改变。

公开(公告)号：US08398375B2

公开(公告)日：2013-03-19

申请号：US12388063

申请日：2009-02-18

申请人： Kohei Tanaka ,  Yoshimasa Chiba ,  Sadashi Tanaka ,  Koji Hayashi ,  Tomohiro Naruse ,  Takaki Fukuchi ,  Takeshi Kazama

发明人： Kohei Tanaka ,  Yoshimasa Chiba ,  Sadashi Tanaka ,  Koji Hayashi ,  Tomohiro Naruse ,  Takaki Fukuchi ,  Takeshi Kazama

IPC分类号： B64C11/04 ,  F03B3/12 ,  F04D29/34

CPC分类号： F04D29/24

摘要： To provide a can manufacturing pump impeller in which a stress of a base portion of a blade is prevented from increasing while improving the strength of a joint portion of a hub and a boss. In order to reinforce a joint portion of a hub and a boss, a plate is jointed to the inside of an impeller. In order not to overlap a base portion of a blade and the plate with each other on the hub, an opening portion is provided in the plate around the base portion of the blade on the hub. As a shape of the opening portion, a semicircular shape, a semielliptical shape, a rectangular shape, or a trapezoidal shape can be selected. Further, as a plate shape, a flat plate structure, a shell structure, or a curved structure can be selected.

摘要翻译： 为了提供能够防止叶片的基部的应力的提高的罐式制造泵叶轮，同时提高轮毂和轮毂的接合部的强度。 为了加强轮毂和凸台的接合部分，将板连接到叶轮的内部。 为了不使轮毂上的叶片的基部和板彼此重叠，在板上围绕叶片的基部的毂上设置有开口部。 作为开口部的形状，可以选择半圆形，半椭圆形，矩形或梯形形状。 此外，作为板状，可以选择平板结构，壳结构或弯曲结构。

公开(公告)号：US20050254941A1

公开(公告)日：2005-11-17

申请号：US11123096

申请日：2005-05-06

申请人： Yasuhiro Inoue ,  Takashi Aki ,  Seiji Kawabata ,  Sadashi Tanaka

发明人： Yasuhiro Inoue ,  Takashi Aki ,  Seiji Kawabata ,  Sadashi Tanaka

IPC分类号： F04D29/44 ,  F04D29/66 ,  F01D5/10

CPC分类号： F04D29/444 ,  F04D29/4213 ,  F04D29/4273 ,  F04D29/448 ,  F05D2250/51

摘要： A prewhirl type inlet casing for inducing a spiral stream in fluid comprising a suction passage arranged on an upstream side, being orthogonal to a rotary shaft of fluid machinery, and an internal passage connected to the suction passage, the internal passage being formed in a spiral shape so as to induce a swirl stream orthogonal to the rotary shaft in the fluid. A guide vane is provided in the fluid passage in the inlet casing. The guide vane has a rectifying function capable of distributing flow rates in the swirl stream of the fluid in the internal passage between the swirl center side and the swirl outer peripheral side and has a rectifying function capable of causing the fluid to deflect into the swirling direction of the swirl stream induced by the internal passage. With these rectifying functions, a rectified swirl stream can be easily created in the in internal passage so as to prevent occurrence of a deviation of a cavitations inducing zone. With this configuration, it is possible to effectively prevent occurrence of the deviation of the cavitations inducing zone in order to aim at simplifying the configuration of the internal passage.

摘要翻译： 一种用于在流体中诱导螺旋流的预旋流型入口壳体，包括布置在上游侧的与流体机械的旋转轴正交的吸入通道和连接到吸入通道的内部通道，内部通道形成为螺旋形 以便在流体中引起与旋转轴正交的旋流。 引导叶片设置在入口壳体中的流体通道中。 导向叶片具有能够在涡旋中心侧和涡流外周侧之间的内部通路中的流体的涡流中分配流量的整流功能，并且具有能够使流体偏向旋转方向的整流功能 的内部通道引起的涡流。 利用这些整流功能，可以在内部通路中容易地产生整流的涡流，以防止产生空穴诱导区的偏离。 利用该结构，为了简化内部通路的结构，能够有效地防止空化诱导区的偏离的发生。

公开(公告)号：US5752785A

公开(公告)日：1998-05-19

申请号：US527898

申请日：1995-09-14

申请人： Sadashi Tanaka ,  Seiji Miura ,  Kunio Takada ,  Masayuki Yamada ,  Yutaka Shimada ,  Akira Manabe

发明人： Sadashi Tanaka ,  Seiji Miura ,  Kunio Takada ,  Masayuki Yamada ,  Yutaka Shimada ,  Akira Manabe

IPC分类号： E03F1/00 ,  E03F5/10 ,  E03F5/22 ,  F04D15/00 ,  F02B11/00

CPC分类号： E03F5/22 ,  Y10T137/402

摘要： In a drainage pump station, a driving machine has a capacity greater than a shaft power necessary for no-discharge operation of a pump, and during severe flooding the pump is operated at an overload exceeding its design capacity. During maintenance operation water is fed from a river on the delivery side of the pump station into the station. When an inflow of rainwater into the pump station is great the pump is operated at the necessary capacity, when it becomes small the water level is kept above a rated value, and when the inflow rate is zero the pump discharge is increased to a capacity at which sediment can be discharged. A suction blower is disposed at the top of a suction sump and interstage valves are disposed in entrances of vertical shafts to effect efficient ventilation of the underground waterway. A feed channel is operated as a pressure channel and the pump is of variable capacity and the water level in the underground waterway is controlled to be constant.

摘要翻译： 在排水泵站中，驱动机器的容量大于泵的不排放操作所需的轴功率，并且在严重的淹水期间，泵以超过其设计能力的过载运行。 在维护作业过程中，水泵从泵站的输送侧的河流进入车站。 当雨水进入泵站的时候，泵的运行必须达到必要的水平，当水位变小时，水位保持在额定值以上，当流量为零时，泵排放量增加到 哪些沉积物可以排出。 抽吸鼓风机设置在吸入池的顶部，并且级间阀门设置在垂直轴的入口处，以实现地下水道的有效通风。 进料通道作为压力通道运行，泵具有可变容量，地下水路中的水位被控制为恒定。

公开(公告)号：US07559742B2

公开(公告)日：2009-07-14

申请号：US11123096

申请日：2005-05-06

申请人： Yasuhiro Inoue ,  Takashi Aki ,  Seiji Kawabata ,  Sadashi Tanaka

发明人： Yasuhiro Inoue ,  Takashi Aki ,  Seiji Kawabata ,  Sadashi Tanaka

IPC分类号： F04D29/44

CPC分类号： F04D29/444 ,  F04D29/4213 ,  F04D29/4273 ,  F04D29/448 ,  F05D2250/51

摘要： A prewhirl type inlet casing for inducing a spiral stream in fluid has a suction passage arranged on an upstream side, being orthogonal to a rotary shaft of fluid machinery, and an internal passage connected to the suction passage, the internal passage being formed in a spiral shape so as to induce a swirl stream orthogonal to the rotary shaft in the fluid. A guide vane provided in the fluid passage in the inlet casing has a rectifying function capable of distributing flow rates in the swirl stream of the fluid in the internal passage between the swirl center side and the swirl outer peripheral side, and causing the fluid to deflect into the swirling direction of the swirl stream induced by the internal passage.

摘要翻译： 用于在流体中引导螺旋流的预涡流型入口壳体具有设置在与流体机械的旋转轴正交的上游侧的吸入通道和连接到吸入通道的内部通道，内部通道形成为螺旋状 以便在流体中引起与旋转轴正交的旋流。 设置在入口壳体中的流体通道中的导向叶片具有整流功能，其能够在漩涡中心侧和涡旋外周侧之间的内部通道中的流体的涡流中分配流量，并使流体偏转 进入由内部通道引起的涡流的旋转方向。

公开(公告)号：US06290460B1

公开(公告)日：2001-09-18

申请号：US09636739

申请日：2000-08-11

申请人： Yoshihiro Nagaoka ,  Sadashi Tanaka ,  Yukiji Iwase ,  Michiaki Ida ,  Hirotoshi Ishimaru ,  Saburo Iwasaki ,  Yoshiharu Ueyama ,  Tetuya Yoshida

发明人： Yoshihiro Nagaoka ,  Sadashi Tanaka ,  Yukiji Iwase ,  Michiaki Ida ,  Hirotoshi Ishimaru ,  Saburo Iwasaki ,  Yoshiharu Ueyama ,  Tetuya Yoshida

IPC分类号： F01D102

CPC分类号： F04D29/669 ,  F04D1/06 ,  F04D29/2216 ,  F04D29/422 ,  F04D29/428 ,  F04D29/444 ,  F04D29/448 ,  F04D29/661 ,  F04D29/663 ,  F05B2260/96 ,  F05D2240/121 ,  F05D2240/304 ,  F05D2250/52

摘要： At a vaned diffuser or a volute casing of a centrifugal fluid machine, pressure pulsation and vibrating forces acting upon the diffuser or the volute casing are mitigated or cancelled so as to abate the noise from the centrifugal fluid machine. The fluid machine having an impeller 3 rotating about a rotating. shaft 2 within a casing 1 and having a vaned diffuser 4 or volute 12 fixed to the casing 1 is constructed such that radius of the vane trailing edge of the impeller 3 and radius of the vane leading edge of the diffuser 4 or radius of the volute tongue is varied in the direction of axis of rotation and inclinations, on a meridional plane, of the vane trailing edge of the impeller 3 and the vane leading edge of the diffuser 4 or the volute tongue are set in the same orientation, thereby reduction in head and efficiency or occurrence of an axial thrust may be restrained to the extent possible to optimally abate the noise and pressure pulsation of the centrifugal fluid machine.

摘要翻译： 在离心式流体机械的叶片式扩散器或蜗壳上，作用在扩散器或蜗壳上的压力脉动和振动力被减轻或消除，从而减轻离心流体机器的噪音。 流体机器具有围绕旋转的旋转的叶轮3。 壳体1内的轴2和具有固定到壳体1上的叶片扩散器4或蜗壳12的轴2被构造成使得叶轮3的叶片后缘的半径和扩散器4的叶片前缘的半径或蜗壳的半径 舌部在旋转轴线的方向上变化，并且在经向平面上，叶轮3的叶片后缘和扩散器4的叶片前缘或蜗形舌片的倾斜被设置在相同的取向上，从而减少 头部和效率或轴向推力的发生可以在可能的程度上被限制，以最佳地减轻离心式流体机械的噪声和压力脉动。

公开(公告)号：US6102618A

公开(公告)日：2000-08-15

申请号：US272094

申请日：1999-03-18

申请人： Kunio Takada ,  Kenji Otani ,  Masayuki Yamada ,  Saburo Maru ,  Sumio Sudo ,  Sadashi Tanaka

发明人： Kunio Takada ,  Kenji Otani ,  Masayuki Yamada ,  Saburo Maru ,  Sumio Sudo ,  Sadashi Tanaka

IPC分类号： E02B11/00 ,  E03F1/00 ,  E03F5/22 ,  F04D15/00 ,  F04D29/44 ,  F04D29/60 ,  E02B13/00

CPC分类号： E02B11/00 ,  E03F1/00 ,  E03F5/22 ,  F04D15/0072 ,  F04D29/448 ,  F04D29/605 ,  F05B2260/96 ,  F05C2225/08

摘要： An underground water channel is provided in an underground of a large depth, and rain water and the like flow into this underground channel from flood control channels, conduits and rivers through vertical shafts. A pump well of a pump station is connected to a downstream end of the underground channel, and water flowing into the pump well is discharged by a pump to a discharge tank. The pump is disposed generally at a medium water level of the underground channel, and a lowest water level L.W.L enabling draining is the medium water level of the underground channel. In an open channel flow operation of an open channel-closed channel mixed flow operation, water level of the underground channel is maintained at the lowest water level L.W.L, so that the underground channel is in an open channel condition. In the closed channel flow operation, the underground channel is fully filled with water, and further water level rises into the vertical shafts, so that the underground channel is in a closed channel condition. By changing an outflow factor in accordance with rainfall patterns, the rate of flow into the vertical shafts can be accurately estimated, so that the large-depth underground drainage facility can be run in a stable manner.

摘要翻译： 深水地下设有地下水道，雨水等通过垂直井从防洪通道，管道和河流流入该地下通道。 泵站的泵井连接到地下通道的下游端，流入泵井的水通过泵排出到排放罐。 泵通常设置在地下通道的中等水位，并且能够排水的最低水位L.W.L是地下通道的中等水位。 在开放通道封闭通道混合流动操作的开放通道流动操作中，地下通道的水位保持在最低水位L.W.L，使得地下通道处于开放通道状态。 在封闭通道流动操作中，地下通道充满水，水位进一步升高至竖井内，使地下通道处于封闭通道状态。 通过根据降雨模式改变流出因子，可以准确估计垂直井的流量，从而可以稳定运行大型地下排水设施。

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：US06371724B1

公开(公告)日：2002-04-16

申请号：US09862313

申请日：2001-05-23

申请人： Yoshihiro Nagaoka ,  Sadashi Tanaka ,  Yukiji Iwase ,  Michiaki Ida ,  Hirotoshi Ishimaru ,  Saburo Iwasaki ,  Yoshiharu Ueyama ,  Tetuya Yoshida

发明人： Yoshihiro Nagaoka ,  Sadashi Tanaka ,  Yukiji Iwase ,  Michiaki Ida ,  Hirotoshi Ishimaru ,  Saburo Iwasaki ,  Yoshiharu Ueyama ,  Tetuya Yoshida

IPC分类号： F04D2944

摘要： At a vaned diffuser or a volute casing of a centrifugal fluid machine, pressure pulsation and vibrating forces acting upon the diffuser or the volute casing are mitigated or cancelled so as to abate the noise from the centrifugal fluid machine. The fluid machine having an impeller 3 rotating about a rotating shaft 2 within a casing 1 and having a vaned diffuser 4 or volute 12 fixed to the casing 1 is constructed such that radius of the vane trailing edge of the impeller 3 and radius of the vane leading edge of the diffuser 4 or radius of the volute tongue is varied in the direction of axis of rotation and inclinations, on a meridional plane, of the vane trailing edge of the impeller 3 and the vane leading edge of the diffuser 4 or the volute tongue are set in the same orientation, thereby reduction in head and efficiency or occurrence of an axial thrust may be restrained to the extent possible to optimally abate the noise and pressure pulsation of the centrifugal fluid machine.