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公开(公告)号：US20160258444A1
公开(公告)日：2016-09-08
申请号：US14430349
申请日：2014-07-14
发明人： Kenya TAKARAI
CPC分类号： F04D29/4293 , F04D1/00 , F04D29/22 , F04D29/428 , F04D29/441 , F04D29/448 , F05D2240/126
摘要： A flow guide plate is disposed downstream from an end portion of a tongue part in a volute chamber, and configured to reduce flow velocity of cooling water flowing at an outer peripheral side of the volute chamber, wherein the volute chamber includes a downstream side leading to a discharge opening, and wherein the tongue part separates the downstream side and an upstream side of the volute chamber from each other.
摘要翻译： 流动引导板设置在蜗壳室中的舌部的端部的下游，并且构造成减小在蜗壳室的外周侧流动的冷却水的流速，其中，蜗壳室包括通向 排出口，并且其中所述舌部将所述蜗壳室的下游侧和上游侧彼此分离。
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公开(公告)号：US20160138607A1
公开(公告)日：2016-05-19
申请号：US14980289
申请日：2015-12-28
发明人： Thomas E. Stirling
IPC分类号： F04D29/42 , F04D17/08 , F04D29/22 , F04D29/053 , F04D29/28 , F04D1/00 , F04D29/043
CPC分类号： F04D29/4233 , F04D1/00 , F04D17/08 , F04D29/043 , F04D29/053 , F04D29/22 , F04D29/28 , F04D29/40 , F04D29/428 , F04D29/4293
摘要： A pump casing having a casing body is configured with a discharge formed in the casing body where a midline of the discharge is offset from a tangent line of the casing body and offset from a centerline of the casing body, such that the midline of the discharge is located along a point between the defined centerline and defined tangent line of the casing body.
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公开(公告)号：US20150337864A1
公开(公告)日：2015-11-26
申请号：US14739528
申请日：2015-06-15
CPC分类号： F04D29/669 , F04D1/00 , F04D7/04 , F04D29/22 , F04D29/428 , F04D29/4286 , F04D29/628 , Y10T29/4933
摘要： A pump casing for a centrifugal pump, which comprises an inlet opening, a discharge outlet, and a transition surface extending between an inner peripheral surface of the main pumping chamber and an inner peripheral surface of the discharge outlet, the transition surface arranged for separating an in use exit flow of material in the discharge outlet from an in use recirculation flow of material in the main pumping chamber. The transition surface has a cutwater having a profiled section which comprises a protrusion which extends irregularly from an otherwise generally rounded arched or U-shaped transition surface and is configured such that, in use, the velocity and/or turbulence resulting from the in use flow of the material being pumped in the main pumping chamber is reduced.
摘要翻译： 一种用于离心泵的泵壳体，其包括入口，排出口和在主泵送室的内周表面之间延伸的过渡表面和排出口的内周表面之间的过渡表面， 在使用中从主泵送室中的材料的使用中再循环流出口排出出口中的材料。 过渡表面具有切割水，其具有成型部分，该成形部分包括从另外通常为圆形的拱形或U形过渡表面不规则地延伸的突出部，并且构造成使得在使用中由使用流动产生的速度和/或湍流 被泵送在主泵室中的材料减少了。
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公开(公告)号：US20150292507A1
公开(公告)日：2015-10-15
申请号：US14358739
申请日：2014-04-11
发明人： Weixin Liang
IPC分类号： F04D13/02 , F04D29/043 , F04D29/44 , F04D29/22 , F04D29/42 , F04D1/12 , F04D29/049
CPC分类号： F04D13/02 , F04D1/00 , F04D1/12 , F04D5/00 , F04D13/0613 , F04D13/086 , F04D17/04 , F04D29/043 , F04D29/049 , F04D29/20 , F04D29/22 , F04D29/428 , F04D29/4293 , F04D29/445 , F04D35/00 , F05D2260/53 , F05D2260/57
摘要： This invention relates to a cross-flow wave making pump comprising an impeller shell forming a water intake and a water outlet, an impeller assembly pivotally connected to two ends of the impeller shell, and a motor used for driving the impeller assembly; wherein, the impeller assembly comprises an impeller used for driving a liquid flow, a first turntable and a second turntable respectively fixed at two ends of the impeller, wherein the first turntable is provided with a shaft rotatably mounted in the impeller shell, the second turntable is provided with a cavity used for receiving a rotor shaft of the motor. The embodiments of the present invention can provide a sufficient liquid-circulation in a container, and significantly reduce the dead zone where the liquid flows extremely slowly.
摘要翻译： 本发明涉及一种交叉流动波浪泵，其包括形成进水口和出水口的叶轮壳体，枢转地连接到叶轮壳体的两端的叶轮组件和用于驱动叶轮组件的马达; 其特征在于，所述叶轮组件包括用于驱动液体流的叶轮，分别固定在所述叶轮的两端的第一转台和第二转台，其中所述第一转台设置有可旋转地安装在所述叶轮壳体中的轴，所述第二转台 设置有用于接收电动机的转子轴的空腔。 本发明的实施方案可以在容器中提供足够的液体循环，并且显着减少液体非常缓慢地流动的死区。
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公开(公告)号：US09057385B2
公开(公告)日：2015-06-16
申请号：US14289553
申请日：2014-05-28
CPC分类号： F04D29/669 , F04D1/00 , F04D7/04 , F04D29/22 , F04D29/428 , F04D29/4286 , F04D29/628 , Y10T29/4933
摘要： A pump casing for a centrifugal pump, which comprises an inlet opening, a discharge outlet, and a transition surface extending between an inner peripheral surface of the main pumping chamber and an inner peripheral surface of the discharge outlet, the transition surface arranged for separating an in use exit flow of material in the discharge outlet from an in use recirculation flow of material in the main pumping chamber. The transition surface has a cutwater having a profiled section which comprises a protrusion which extends irregularly from an otherwise generally rounded arched or U-shaped transition surface and is configured such that, in use, the velocity and/or turbulence resulting from the in use flow of the material being pumped in the main pumping chamber is reduced.
摘要翻译： 一种用于离心泵的泵壳体，其包括入口，排出口和在主泵送室的内周表面之间延伸的过渡表面和排出口的内周表面之间的过渡表面， 在使用中从主泵室中的材料的使用中再循环流出口排出出口中的材料。 过渡表面具有切割水，其具有成型部分，该成形部分包括从另外通常为圆形的拱形或U形过渡表面不规则地延伸的突出部，并且构造成使得在使用中由使用流动产生的速度和/或湍流 被泵送在主泵室中的材料减少了。
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公开(公告)号：US20140369824A1
公开(公告)日：2014-12-18
申请号：US14304755
申请日：2014-06-13
发明人： Chuan Jiang GUO , Chuan Hui FANG , Feng XUE
CPC分类号： F04D29/445 , F04D29/026 , F04D29/426 , F04D29/4273 , F04D29/428 , F04D29/4293 , F05D2230/20 , F05D2230/53 , F05D2300/43
摘要： An electric pump has a pump casing, a sealing plate, an impeller and a motor for driving the impeller. The pump casing has a main body. A recess is formed in the main body and with the sealing plate defines a pump chamber. A suction port is connected to the pump chamber by a suction channel and a suction passage formed in the main body. A discharge port is connected to the pump chamber by a discharge channel. The suction passage extends axially from the recess. The recess, suction passage, suction channel and discharge channel are all shaped in a manner allowing the pump casing can be molded as a monolithic structure in a single injection molding process.
摘要翻译： 电动泵具有用于驱动叶轮的泵壳体，密封板，叶轮和马达。 泵壳体具有主体。 在主体中形成凹部，并且密封板限定泵室。 吸入口通过形成在主体中的吸入通道和吸入通道连接到泵室。 排出口通过排出通道连接到泵室。 吸入通道从凹部轴向延伸。 凹部，吸入通道，吸入通道和排出通道均以使得泵壳体可以在单次注射成型工艺中成型为整体结构的方式成形。
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公开(公告)号：US08834345B2
公开(公告)日：2014-09-16
申请号：US13742478
申请日：2013-01-16
申请人： Thoratec Corporation
发明人： Masamichi Yanai , Tao Zhang , Jeffrey G. Houdek
IPC分类号： A61M1/10
CPC分类号： A61M1/101 , A61M1/1012 , A61M1/1086 , A61M1/122 , A61M2205/3334 , F04D15/0088 , F04D29/428 , F05D2270/335
摘要： A centrifugal pump system for a cardiac assist device employs a disc-shaped impeller having an outer circumference adapted to be rotatably driven in a pumping direction. A pump housing has a pumping chamber receiving the impeller, wherein the pumping chamber defines an outlet volute having a separation edge spaced from the outer circumference to provide a limited backflow path coinciding with the pumping direction. A motor drives the impeller in response to a voltage provided to the motor. A current sensor measures current flow within the motor in response to the voltage. A controller estimates a pump flow rate in response to a predetermined relation between the measured current and the pump flow rate, wherein the predetermined relation includes a positive slope from a predetermined backflow rate to a zero pump flow rate.
摘要翻译： 用于心脏辅助装置的离心泵系统采用圆盘形叶轮，其具有适于沿泵送方向可旋转地驱动的外周。 泵壳体具有容纳叶轮的泵送室，其中泵送室限定具有与外圆周间隔开的分离边缘的出口蜗壳，以提供与泵送方向一致的有限的回流路径。 电机根据提供给电机的电压来驱动叶轮。 电流传感器响应于电压来测量电动机内的电流。 控制器响应于测量的电流和泵流量之间的预定关系来估计泵流量，其中预定关系包括从预定回流速率到零泵流量的正斜率。
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公开(公告)号：US20130058774A1
公开(公告)日：2013-03-07
申请号：US13696302
申请日：2011-04-26
CPC分类号： F04D29/428 , F04D29/445 , F05D2240/121 , Y10T29/49243
摘要： A volute shaped pump casing for a centrifugal pump includes a chamber for housing at least one impeller rotatable around an axis of rotation and a volute shaped chamber which forms a flow channel and which contains a splitter rib for dividing the flow channel formed wherein in a section perpendicular to the axis of rotation a mean camber line is positioned equidistantly between an inner and outer surface of the splitter rib, where the thickness of the splitter rib is varied along the mean camber line and for the mean camber line unwrapped to a straight line there is a maximum in the thickness, s, of the splitter rib, wherein said maximum is positioned at a distance L from the leading edge of the splitter rib, and wherein the distance L is in the range between 1.4 times the maximum thickness s and 6 times the maximum thickness s.
摘要翻译： 用于离心泵的蜗壳式泵壳体包括用于容纳至少一个可围绕旋转轴线旋转的叶轮的腔室和形成流动通道的蜗壳形腔，并且其包含用于分隔所形成的流动通道的分流肋， 垂直于旋转轴线的平均弧线等距离地设置在分流肋的内表面和外表面之间，其中分流肋的厚度沿着平均弧线变化，并且平均弧线在其上展开直线 是分离肋的厚度s的最大值，其中所述最大值位于距离分离肋的前缘的距离L处，并且其中距离L在1.4倍最大厚度s和6之间的范围内 次最大厚度s。
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公开(公告)号：US07517186B2
公开(公告)日：2009-04-14
申请号：US11424572
申请日：2006-06-16
申请人： Douglas W. Seitz , Michael C. Ruthy , Wayne Hable
发明人： Douglas W. Seitz , Michael C. Ruthy , Wayne Hable
CPC分类号： F04D29/426 , F04D29/428 , F04D29/4293
摘要： The present invention is directed to a pump casing and a centrifugal pump comprising a single piece casing, the casing comprising a first cut-water fluid flow path, a second cut-water fluid flow path, a first joint-water path, a second joint-water path, and an impeller cavity, the first cut-water fluid flow path and the second cut-water fluid flow path communicating with the first joint-water path and the second joint-water path, the pump further comprising an impeller positioned within the cavity, and a suction head overlaying the impeller. The first joint-water path communicates with a first discharge nozzle and the second joint-water path communicates with a second discharge nozzle, the first discharge nozzle and the second discharge nozzle situated substantially at opposing ends of the casing.
摘要翻译： 本发明涉及一种泵壳体和离心泵，其包括单件壳体，该壳体包括第一切割水流体流路，第二切割水流体流路，第一关节水路径，第二关节 水路和叶轮腔，所述第一切水流体流路和所述第二切水流体流路与所述第一关节水路和所述第二关节水路连通，所述泵还包括位于 空腔和与叶轮重叠的吸头。 所述第一关节水路与第一排出喷嘴连通，所述第二关节水路与第二排出喷嘴连通，所述第一排出喷嘴和所述第二排出喷嘴大致位于所述壳体的相对端。
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公开(公告)号：US20060177305A1
公开(公告)日：2006-08-10
申请号：US11052366
申请日：2005-02-07
申请人： Khanh Hoang , Wei-Chung Chen , Morgan Williams , Roland Szabo
发明人： Khanh Hoang , Wei-Chung Chen , Morgan Williams , Roland Szabo
IPC分类号： F04D29/44
CPC分类号： F04D29/448 , F04D29/428 , F05D2250/52
摘要： A centrifugal pump includes a casing containing a volute channel having a cutwater at an entrance thereof. An annular vane-island diffuser is fixed in the casing concentrically within the volute. The diffuser is arranged to be separate and discontinuous from the cutwater of the volute. An impeller rotatably mounted on a shaft is disposed concentrically within the diffuser. The diffuser can be formed, e.g., by an investment casting process, integrally with the casing, or alternatively, independently of it. By arranging the diffuser to be independent of the cutwater of the volute, the diffuser can be “clocked” or “overturned” relative to the cutwater to minimize radial loads on the cutwater and dynamic loads on its leading edge. Additional advantages of the novel design include reductions in pump weight, radial loads, friction loss, design and modeling time, and the energy of outgoing acoustic waves at the pump discharge.
摘要翻译： 离心泵包括容纳在其入口处具有切割水的蜗壳通道的壳体。 环形叶片岛扩散器在壳体内同心地固定在蜗壳内。 扩散器布置成与蜗壳的切割水分离并不连续。 可旋转地安装在轴上的叶轮同心地设置在扩散器内。 扩散器可以例如通过熔模铸造工艺与壳体一体地形成，或者可以独立于其形成。 通过将扩散器设置为独立于蜗壳的切割水，扩散器可相对于切割水“定时”或“翻转”，以使切割水上的径向载荷和其前缘上的动态载荷最小化。 新颖设计的另外的优点包括减少泵重量，径向载荷，摩擦损失，设计和建模时间以及泵排出口处的输出声波的能量。
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