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1. 发明授权

US08075260B2 Centrifugal turbomachinery 有权
标题翻译：离心涡轮机
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。

2. 发明申请

US20070217909A1 Centrifugal turbomachinery 有权
标题翻译：离心涡轮机
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。

3. 发明申请

US20050254941A1 Inlet casing and suction passage structure 有权
标题翻译：入口套管和抽吸通道结构
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。

4. 发明授权

US07559742B2 Inlet casing and suction passage structure 有权
标题翻译：入口套管和抽吸通道结构
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。

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