公开(公告)号：EP2808550B1

公开(公告)日：2018-10-17

申请号：EP13740553.6

申请日：2013-01-10

申请人： Mitsubishi Heavy Industries, Ltd.

发明人： SANO, Takeshi ,  FUKAO, Shinji ,  ISHIZAKA, Koichi ,  NIU, Kenichi ,  FUKUDA, Yuya

IPC分类号： F04D29/041 ,  F04D29/22 ,  F04D29/42

CPC分类号： F04D29/041 ,  F04D1/00 ,  F04D29/0416 ,  F04D29/051 ,  F04D29/2238 ,  F04D29/2255 ,  F04D29/2266 ,  F04D29/684 ,  F04D29/688

摘要： A centrifugal fluid machine includes an impeller (4) that has a front shroud (41) arranged on one side in an axial direction, a rear shroud (42) arranged on the other side in the axial direction, and a plurality of blades (43) provided side by side in a circumferential direction between the front shroud and the rear shroud and is rotatably supported within a casing (2); a suction passage (2A) that allows a fluid to be sucked therethrough in the axial direction toward the impeller with the rotation of the impeller; a discharge passage (2B) that allows a fluid delivered under pressure by the impeller with the rotation of the impeller to be discharged in a direction intersecting the axial direction of the impeller; and a first flow path (5A) that communicates with the discharge passage, leads to the suction passage through a gap between the casing and the rear shroud, and an opening (5Aa) that opens toward the downstream side of the suction passage in a suction direction of a fluid. The opening area of the opening is set so that the ejection speed (Vs) of a fluid ejected from the opening to the suction passage is matched with the suction speed (V) of a fluid sucked into the suction passage.

公开(公告)号：EP3306101A1

公开(公告)日：2018-04-11

申请号：EP17194720.3

申请日：2017-10-04

申请人： Wood, Anthony

发明人： Wood, Anthony

IPC分类号： F04D19/00 ,  F04D29/32 ,  F04D29/38

CPC分类号： F04D29/282 ,  F01P5/02 ,  F04D19/002 ,  F04D29/2255 ,  F04D29/324 ,  F04D29/329 ,  F04D29/384 ,  F04D29/386 ,  H02K9/06

摘要： A fan assembly (100) includes a hub (104) with fan blades (106) extending therefrom. Each fan blade couples to the hub and includes a proximal end (107), a distal end (105), a leading edge (109), and a trailing edge (111). Each fan blade is twisted and reverse-swept. The width at the proximal end is greater than the width of a fan blade at the distal end. The twist begins at the neck at the proximal end of the fan blade and continues along the length of the radius toward the distal end. The thickness of each fan blade along its chord width remains approximately the same. As a result, the fan provides axial airflow along the entire length of each fan blade, instead of just outer regions of the fan blades.

摘要翻译： 风扇组件（100）包括具有从其延伸的风扇叶片（106）的毂（104）。 每个风扇叶片联接到轮毂并且包括近端107，远端105，前缘109和后缘111。 每个风扇叶片都扭转并反向扫掠。 近端处的宽度大于远端处的风扇叶片的宽度。 扭曲从风扇叶片近端处的颈部开始并沿着半径的长度朝向远端继续。 每个风扇叶片沿其弦宽度的厚度保持大致相同。 结果，风扇沿着每个风扇叶片的整个长度提供轴向气流，而不是风扇叶片的仅外部区域。

公开(公告)号：EP1977110A4

公开(公告)日：2017-08-09

申请号：EP07709705

申请日：2007-01-12

申请人： HEARTWARE INC

发明人： LAROSE JEFFREY A ,  WAMPLER RICHARD K ,  INDRAVUDH VITROTE

IPC分类号： F04B17/00 ,  A61M1/10 ,  A61M1/12 ,  F04D13/06 ,  F04D29/041 ,  F04D29/047 ,  F04D29/048 ,  F04D29/22

CPC分类号： F04D13/066 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/1015 ,  A61M1/1017 ,  A61M1/1029 ,  A61M1/1031 ,  A61M1/122 ,  A61M1/127 ,  F04D7/04 ,  F04D13/0633 ,  F04D13/0666 ,  F04D29/0413 ,  F04D29/0473 ,  F04D29/048 ,  F04D29/22 ,  F04D29/2255 ,  Y10S415/90

摘要： A rotary blood pump includes a casing defining a pumping chamber. The pumping chamber has a blood inlet and a tangential blood outlet. One or more motor stators are provided outside of the pumping chamber. A rotatable impeller is within the pumping chamber and is adapted to cause blood entering the pumping chamber to move to the blood outlet. The impeller has one or more magnetic regions. The impeller is radially constrained in rotation by magnetic coupling to one or more motor stators and is axially constrained in rotation by one or more hydrodynamic thrust bearing surfaces on the impeller.

摘要翻译： 旋转式血泵包括限定泵送室的壳体。 泵室有一个血液入口和一个切向血液出口。 泵室外设有一个或多个电机定子。 可旋转的叶轮位于泵室内并且适于使进入泵室的血液移动至血液出口。 叶轮具有一个或多个磁性区域。 叶轮通过与一个或多个电动机定子的磁耦合而被径向限制旋转，并且通过叶轮上的一个或多个流体动力止推轴承表面轴向限制旋转。

公开(公告)号：EP3176439A2

公开(公告)日：2017-06-07

申请号：EP16197333.4

申请日：2016-11-04

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： CHIKAZAWA, Yuki ,  NUNOMURA, Mahito ,  OHASHI, Toshiharu

IPC分类号： F04D13/06 ,  F04D29/44

CPC分类号： F04D13/0606 ,  F04D29/2255 ,  F04D29/445 ,  F05D2250/52

摘要： A pump according to the present disclosure includes a pump body, an impeller stored in a pump chamber formed inside the pump body, and a shaft that supports the impeller such that the impeller is rotatable. A pump channel extending from a suction port to a first discharge port is formed inside the pump body. The pump channel includes a suction path, an impeller channel which is formed inside the impeller and into which liquid in the suction path is introduced, a volute portion which is formed on a radially outer side of the impeller and into which liquid in the impeller channel is introduced, and a discharge path into which liquid in the volute portion is introduced. A liquid separation reduction structure that reduces separation of liquid flowing in the pump channel is provided in the pump channel.

摘要翻译： 根据本公开的泵包括泵体，容纳在形成于泵体内部的泵室中的叶轮以及支撑叶轮使得叶轮可旋转的轴。 在泵体内部形成从吸入口延伸到第一排出口的泵通道。 泵通道包括吸入路径，其在叶轮内部和其中的液体在吸入路径形成被导入叶轮通道，其在所述叶轮的径向外侧和其中液体在叶轮通道形成的蜗壳部 以及引入蜗壳部分中的液体的排放路径。 在泵通道中设置减少在泵通道中流动的液体分离的液体分离减少结构。

公开(公告)号：EP1671033A4

公开(公告)日：2011-03-16

申请号：EP04749631

申请日：2004-04-01

申请人： PEMBERTON STEVE

发明人： PEMBERTON STEVE

IPC分类号： F04B17/00 ,  F01D3/02 ,  F04B20060101 ,  F04B35/00 ,  F04D1/00 ,  F04D7/04 ,  F04D29/22 ,  F04D29/24

CPC分类号： F04D29/242 ,  F04D1/006 ,  F04D7/04 ,  F04D29/2222 ,  F04D29/2255

公开(公告)号：EP1070204A4

公开(公告)日：2006-02-08

申请号：EP99916506

申请日：1999-04-08

申请人： PYROTEK INC

发明人： VILD CHRIS T ,  BRIGHT MARK A

IPC分类号： F04D7/06 ,  F04D29/22 ,  F04D29/24

CPC分类号： F04D29/2255 ,  F04D7/065 ,  F04D29/242

摘要： An impeller (101) for a molten metal pump (32) has a cylindrical body (103) comprised of a refractory material. The cylindrical body includes generally coplanar top (105) and bottom surfaces. A central bore (111) is provided in the top surface to provide a point for mating with a shaft (109). A plurality of circumferentially spaced passages (115) extend from the top or bottom surface to a side wall (117) of the impeller, each of the passages being separate and preferably having an inlet opening which is equal to or less than the corresponding outlet opening in size. A recess (107) is optionally formed in the top or bottom surface, forming the initial inlet to the passages.

公开(公告)号：EP1532367A2

公开(公告)日：2005-05-25

申请号：EP03791329.0

申请日：2003-08-27

申请人： EBARA CORPORATION

发明人： KAWABATA, Junya ,  ENOMOTO, Takashi ,  ITO, Shoji

IPC分类号： F04D29/22

CPC分类号： F04D29/2255 ,  F04D29/2216

摘要： The centrifugal impeller includes a plurality of blades (3), a plurality of fluid paths (P) for delivering a fluid from an impeller inlet (1) to an impeller outlet (2), and a shroud (4) and a hub (5) for forming the fluid paths (P). Each of the fluid paths (P) is formed between adjacent two of the blades (3). A curved line (L3) of the shroud (4) curves so as to project toward the hub (5) in a region from a blade inlet (A) to a predetermined position (C) of the blade (3), and the curved line (L3) curves so as to project toward the opposite side of the hub (5) in a region from the predetermined position (C) to a blade outlet (B).

公开(公告)号：EP1229250A1

公开(公告)日：2002-08-07

申请号：EP02001923.8

申请日：2002-01-31

申请人： Thut, Bruno H.

发明人： Thut, Bruno H.

IPC分类号： F04D7/06 ,  F04D29/22

CPC分类号： F04D7/065 ,  F04D29/043 ,  F04D29/22 ,  F04D29/2255 ,  F04D29/2288

摘要： One aspect of the invention is directed to an impeller made of a non-metallic, heat resistant material, comprising a generally cylindrical shaped body having a central rotational axis, first and second generally planar end faces extending transverse to the central axis and a side wall extending between the first and second faces. A plurality of passages have inlets circumferentially spaced apart from each other on the first face, outlets at the impeller sidewall, and connecting portions extending between the inlets and the outlets transverse to the central axis. Each of the passages extends at an angle to the central axis along substantially an entire length and perimeter of the passages. Another aspect of the invention is directed to an impeller made of a non-metallic, heat resistant material comprising a central hub portion extending along a rotational axis of the impeller and first and second impeller bases extending from the hub portion at opposing end portions of the impeller transverse to the central axis. The first impeller base and the second impeller base each comprise an outer end face. Vanes extend from the central hub portion between the first and second impeller bases. Cavities are formed between the first and second impeller bases and between adjacent vanes. A plurality of molten metal passages are circumferentially spaced apart from one another in the first end face and the second end face and terminate at the cavities. Pumps for pumping molten metal are designed so as to comprise the cylindrical bodied impeller or the vaned impeller.

摘要翻译： 本发明的一个方面涉及一种由非金属耐热材料制成的叶轮，其包括具有中心旋转轴线的大致圆柱形的主体，横向于中心轴线延伸的第一和第二大致平面的端面以及侧壁 在第一和第二面之间延伸。 多个通道具有在第一面上彼此周向间隔开的入口，在叶轮侧壁处的出口以及在入口和出口之间横向于中心轴线延伸的连接部分。 每个通道沿着通道的基本上整个长度和周长以中心轴线成一定角度延伸。 本发明的另一方面涉及一种由非金属耐热材料制成的叶轮，其包括沿着叶轮的旋转轴线延伸的中心毂部分，以及在轮毂部分的相对端部处从轮毂部分延伸的第一和第二叶轮基部 叶轮横向于中心轴线。 第一叶轮基座和第二叶轮基座各自包括外端面。 叶片从第一和第二叶轮基座之间的中心毂部延伸。 在第一和第二叶轮基座之间以及在相邻的叶片之间形成空腔。 多个熔融金属通道在第一端面和第二端面中彼此周向间隔开并终止在空腔处。 用于泵送熔融金属的泵被设计成包括圆柱体的叶轮或叶轮。

公开(公告)号：EP1048850A1

公开(公告)日：2000-11-02

申请号：EP99900291.8

申请日：1999-01-13

申请人： EBARA CORPORATION

发明人： HARADA, Hideomi, Ebara Research Co., Ltd ,  KONOMI, Shin, Ebara Research Co., Ltd

IPC分类号： F04D29/24 ,  F04D29/30

CPC分类号： F04D29/2255 ,  F04D29/24 ,  F04D29/30

摘要： The present invention provides a centrifugal turbomachinery having a good performance which can effectively reduce the secondary flow in the flow passage of the impeller and minimize the loss caused by the secondary flow without an excessive increase in manufacturing cost. An impeller has a plurality of blades (3) between an inlet (6a) at a central portion and an exit (6b) at a peripheral portion, and a flow passage formed between the blades for delivering fluid from the impeller inlet to the impeller exit by rotation the impeller. The blade (3) is leaned toward a circumferential direction so that the blade at the hub side (2) precedes the blade at the shroud side (4) in a rotational direction of the impeller. A blade lean angle, defined as an angle between the blade and a surface perpendicular to a hub surface as viewed from the direction of the exit, shows a decreasing tendency from the inlet to the exit. A blade centerline at the hub side and a blade centerline at the shroud side as viewed from the front direction at the inlet intersect at a point where non-dimensional radius location, defined as a ratio of the radius of the intersection to the radius of the impeller exit, ranges from 0.8 to 0.95.

摘要翻译： 本发明提供了一种具有良好性能的离心式涡轮机械，其能够有效地减少叶轮的流动通道中的二次流动并且最小化由二次流引起的损失，而不会过度增加制造成本。 叶轮具有在中心部分的入口（6a）和周边部分的出口（6b）之间的多个叶片（3）和形成在叶片之间的流动通道，用于将流体从叶轮入口输送到叶轮出口 通过旋转叶轮。 叶片（3）朝向圆周方向倾斜，使得轮毂侧（2）处的叶片在叶轮的旋转方向处在护罩侧（4）处的叶片之前。 从出口方向观察时，被定义为叶片与垂直于轮毂表面的表面之间的角度的叶片倾斜角显示出从入口到出口的减小的趋势。 轮毂侧的叶片中心线和在入口处从前方观察的护罩侧的叶片中心线在无量纲半径位置处的点处相交，所述点的尺寸半径位置被定义为交点的半径与半径的比率 叶轮出口范围为0.8至0.95。

公开(公告)号：EP0834021A1

公开(公告)日：1998-04-08

申请号：EP97921076.0

申请日：1997-04-23

申请人： Metaullics Systems Co., L.P.

发明人： VILD, Chris, T. ,  BRIGHT, Mark, A.

IPC分类号： F04D7 ,  F04D29

CPC分类号： F04D29/2255 ,  F04D7/065

摘要： An impeller (1) for a molten metal pump having a cylindrical body comprised of a refractory material. The cylindrical body includes generally coplanar top (2) and bottom (12) surfaces. A central bore (4) is provided in the top surface (2) to provide a point for mating with a shaft. A plurality of circumferentially spaced passages (6) extend from the top surface (2) to a side wall (8) of the impeller (1), each of the passages being separate and preferably having an inlet opening (5) which is equal to or less than the corresponding outlet opening (9) in size.