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公开(公告)号：US20180045222A1
公开(公告)日：2018-02-15
申请号：US15653798
申请日：2017-07-19
申请人： Sulzer Management AG
发明人： Arnaldo RODRIGUES
CPC分类号： F04D29/548 , B23K31/022 , F04D29/4273 , F04D29/4293 , F04D29/445 , F04D29/605 , F04D29/669 , F04D29/708 , F05D2250/511 , F16L43/002
摘要： An intake device for a pump includes an inlet section extending in a first direction for guiding a fluid, an outlet section for delivering the fluid to an inlet of the pump, the outlet section extending in a second direction perpendicular to the first direction, and a diverting section for diverting the fluid from the first to the second direction, the diverting section connecting the inlet and outlet sections, and having a bottom wall opposing the an outlet opening and a back wall opposing an inlet opening, the inlet section tapering towards the diverting section to decrease a cross sectional area of the inlet section, the diverting section includes a splitter member arranged on the bottom wall that tapers in the second direction towards the outlet opening, and the outlet section includes an essentially bell shaped reducing part for decreasing a cross sectional area of the outlet section.
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公开(公告)号：US20160025100A1
公开(公告)日：2016-01-28
申请号：US14781432
申请日：2014-04-17
申请人： SULZER MANAGEMENT AG
发明人： Arnaldo RODRIGUES
CPC分类号： F04D29/242 , F04D1/00 , F04D1/006 , F04D17/08 , F04D29/30
摘要： An impeller for a centrifugal pump has at least one vane which has a lower side concavely curved in at least one part region and which has at least one kink line in at least one part region. The kink line extends at least substantially along a main direction of extent of the at least one vane. The vane is open in a V shape along the kink line in at least one part region in the direction of a surface normal of the lower side.
摘要翻译： 用于离心泵的叶轮具有至少一个叶片，该叶片在至少一个部分区域中具有凹入弯曲的下侧，并且在至少一个部分区域中具有至少一个扭结线。 扭结线至少基本上沿至少一个叶片的主要方向延伸。 叶片在下侧的表面法线方向的至少一个部分区域中沿着扭结线以V形开口。
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公开(公告)号：US20170107996A1
公开(公告)日：2017-04-20
申请号：US15271795
申请日：2016-09-21
申请人： Sulzer Management AG
发明人： Arnaldo RODRIGUES
CPC分类号： F04D29/167 , F04D1/006 , F04D7/04 , F04D29/2266 , F04D29/2294 , F04D29/4293
摘要： A pump for conveying a highly viscous fluid includes a casing with at least a first inlet and an outlet for the fluid, and an impeller for conveying the fluid from the inlet to the outlet. The impeller is arranged on a rotatable shaft for rotation around an axial direction, and includes a front shroud facing the first inlet of the pump. The casing includes a stationary impeller opening for receiving the front shroud of the impeller and has a diameter. The front shroud and the stationary impeller opening form a gap having a width in a radial direction perpendicular to the axial direction, and the ratio of the width of the gap and the diameter of the impeller opening is at least 0.0045.
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公开(公告)号：US20210324862A1
公开(公告)日：2021-10-21
申请号：US17202607
申请日：2021-03-16
申请人： Sulzer Management AG
IPC分类号： F04D15/00 , F04D1/06 , F04D29/22 , F04D29/10 , F04D29/043
摘要： A centrifugal pump for conveying a fluid includes a pump housing, an impeller to convey the fluid from an inlet to an outlet, a shaft to rotate the impeller, a first sealing device to seal the shaft at a suction side, a second sealing device to seal the shaft at a discharge side, a balance drum connected to the shaft between the impeller and the second sealing device, the balance drum defining a front side facing the at least one impeller and a back side facing the second sealing device, a relief passage between the balance drum and a stationary part, a balance line connecting the back side with the suction side, a discharge opening arranged at the relief passage between the front side and the back side, and a connecting line connecting the discharge opening with the first sealing device.
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公开(公告)号：US20150361990A1
公开(公告)日：2015-12-17
申请号：US14761846
申请日：2014-01-22
申请人： SULZER MANAGEMENT AG
发明人： Arnaldo RODRIGUES
IPC分类号： F04D29/44 , F04D17/12 , F04D29/28 , F01D25/24 , F04D1/00 , F04D17/10 , F01D5/06 , F01D9/02 , F04D1/06 , F04D29/22
CPC分类号： F04D29/445 , F01D5/06 , F01D9/02 , F01D25/24 , F04D1/006 , F04D1/06 , F04D17/105 , F04D17/12 , F04D29/22 , F04D29/28 , F04D29/426 , F04D29/441
摘要： A flow machine includes a rotor rotatably arranged about an axis of rotation in a rotor space of a housing. For energy exchange between a flow energy of a flowing fluid and a mechanical rotational energy, the fluid can be supplied to the housing of the flow machine in so as to bring the fluid into flowing contact with the rotor for the energy exchange and can be led out of the housing of the flow machine. A flow guiding element running about the axis of rotation in a peripheral direction of the rotor is disposed in the rotor space between an inner wall of the rotor space and the rotor in such a way that the rotor is surrounded by the flow guiding element over a predeterminable axial width.
摘要翻译： 流动机包括绕壳体的转子空间中的旋转轴线可旋转地设置的转子。 为了流动流体的流动能量和机械旋转能量之间的能量交换，可以将流体供应到流动机器的壳体，以使流体与转子流动接触以进行能量交换并且可以被引导 离开流动机的外壳。 在转子空间的内壁和转子之间的转子空间中设置有围绕转子的圆周方向的旋转轴线的流动引导元件，使得转子被导流元件围绕在转子空间 可预测的轴向宽度。
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公开(公告)号：US20210156397A1
公开(公告)日：2021-05-27
申请号：US17097068
申请日：2020-11-13
申请人： Sulzer Management AG
发明人： Arnaldo RODRIGUES
摘要： A multistage pump for conveying a fluid includes an outer pump housing, at least first and last stages arranged in the outer pump housing. Each stage includes a stage casing, an impeller, and a diffuser. A pump inlet supplies the fluid to the impeller of the first stage and, a pump outlet discharges the fluid. Each impeller is mounted to a pump shaft in a torque proof manner, and the impellers are arranged one after another on the pump shaft. The last stage includes a collector with a collector chamber to receive the fluid from the diffuser of the last stage. The first stage includes guide channels to receive the fluid from a diffusor and to guide the fluid to the impeller of the next stage. The collector chamber is displaced in the axial direction with respect to the diffusor of the last stage.
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