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1. 发明公开

EP3387262A1 OPPOSED IMPELLER WEAR RING UNDERCUT TO OFFSET GENERATED AXIAL THRUST IN MULTI-STAGE PUMP 审中-公开
公开(公告)号：EP3387262A1
公开(公告)日：2018-10-17
申请号：EP16873745.0
申请日：2016-12-07
申请人： Fluid Handling LLC.
发明人： RUZICKA, Paul , FELIX, Christopher
IPC分类号： F04D29/16
CPC分类号： F04D29/167 , B63H11/08 , F04D1/06 , F04D29/041 , F04D29/08 , F04D29/2266
摘要： An opposing impeller arrangement, for using in an opposed impeller pump, features a combination of a stage 1 impeller arrangement and a stage 2 impeller arrangement having opposing impellers and different impeller and wear ring arrangements. The stage 1 impeller arrangement may include a stage 1 impeller and a stage 1 wear ring, and be configured to receive an input fluid flow and a pump stage 1 fluid flow. The stage 2 impeller arrangement may include a stage 2 impeller and a stage 2 wear ring configured to receive the pump stage 1 fluid flow and provide a pump stage 2 fluid flow, and may also include a stage 2 wear ring undercut configured between the stage 2 impeller and the stage 2 wear ring to offset generated axial thrust in the opposing impeller pump, based upon the different impeller and wear ring arrangements.

2. 发明授权

EP2376789B1 POMPE A DISPOSITIF D'EQUILIBRAGE AXIAL. 有权转让
公开(公告)号：EP2376789B1
公开(公告)日：2018-09-12
申请号：EP10706014.7
申请日：2010-01-08
申请人： ArianeGroup SAS
发明人： BOUFFLERT, Sébastien , JUHEL, Nicolas , FAYOLLE, Patrice , LAFFITE, Stéphane
IPC分类号： F04D29/22 , F04D29/042
CPC分类号： F04D29/042 , F04D29/2266

3. 发明公开

EP3309404A1 WASTE WATER PUMP 有权
标题翻译：废水泵
公开(公告)号：EP3309404A1
公开(公告)日：2018-04-18
申请号：EP16193892.3
申请日：2016-10-14
申请人： Grundfos Holding A/S
发明人： Henning, Poul Johannes
IPC分类号： F04D29/42 , F04D7/04 , F04D29/16 , F04D29/22
CPC分类号： F04D29/086 , F04D7/045 , F04D11/005 , F04D29/165 , F04D29/167 , F04D29/2266 , F04D29/4273 , F04D29/4293 , F05D2250/51
摘要： The invention relates to a waste water pump comprising an impeller (12) and a surrounding pump housing (4), wherein an impeller side chamber (20) is formed between the impeller (12) and the pump housing (4), said impeller side chamber (20) having a first sealing (16) between the impeller (12) and the pump housing (4) towards the intake side (32) of the impeller (12) and a second sealing (18) between the impeller (12) and the pump housing (4) towards the pressure side (14) of the impeller (12), wherein the first sealing (16) is provided with conveying means (28, 30) designed to convey debris from the impeller side chamber (20) to the intake side (32) of the impeller (12) and that the second sealing (18) is provided with conveying means (38, 40) designed to convey debris from the side chamber (20) to the pressure side (14) of the impeller (12).
摘要翻译：本发明涉及一种包括叶轮（12）和周围泵壳体（4）的废水泵，其中在叶轮（12）和泵壳体（4）之间形成叶轮侧室（20），所述叶轮侧在叶轮（12）和泵壳体（4）之间朝向叶轮（12）的吸入侧（32）具有第一密封件（16）的第一密封室（20）和位于叶轮（12）之间的第二密封件（18）和泵壳体（4）朝叶轮（12）的压力侧（14）移动，其中第一密封件（16）设有用于从叶轮侧腔室（20）输送碎屑的输送装置（28,30）到所述叶轮（12）的进入侧（32），并且所述第二密封件（18）设有传送装置（38,40），所述传送装置设计成将来自所述侧室（20）的碎屑传送到所述叶轮叶轮（12）。

4. 发明公开

EP3011186A1 DEBRIS REMOVING IMPELLER BACKVANE 失效
标题翻译：碎片去除叶轮背部
公开(公告)号：EP3011186A1
公开(公告)日：2016-04-27
申请号：EP14813765.6
申请日：2014-06-23
申请人： Flow Control LLC.
发明人： LOPES, Jeffrey D.
IPC分类号： F04D29/24
CPC分类号： F04D29/242 , F04D1/00 , F04D7/045 , F04D13/02 , F04D29/007 , F04D29/106 , F04D29/2266 , F04D29/2288 , F04D29/245 , F04D29/4206 , F04D29/708 , F05D2250/15
摘要： A pump having an impeller with front and back sides, for rotating on a shaft with the front side nearest an inlet and the back side nearest a motor housing, to provide a main flow of the liquid from the inlet to the outlet and a rear impeller flow of the liquid in an area between the impeller's back side and the motor housing. The back side having a logarithmic spiral-shaped vane to constantly sweep, and expel debris from, the area.
摘要翻译：一种具有前后侧叶轮的泵，用于在轴的前侧靠近入口且靠近电机壳体的后侧旋转以提供从入口到出口的液体的主流，以及后叶轮液体在叶轮背面和电机壳体之间的区域内流动。背面有一个对数螺旋形叶片以不断扫掠，并将碎片排出该区域。

5. 发明公开

EP2742242A1 PUMP WITH DOUBLE- SUCTION IMPELLER GENERATING AXIAL THRUST 有权
标题翻译： PUMPE MIT ZWEI SAUGANTRIEBEN ZUR ERZEUGUNG EINES AXIALSCHUBS
公开(公告)号：EP2742242A1
公开(公告)日：2014-06-18
申请号：EP12778475.9
申请日：2012-08-09
申请人： ITT Manufacturing Enterprises LLC
发明人： BEHNKE, Paul, W. , KOREN, Matthew, J.
IPC分类号： F04D1/00 , F04D29/041 , F04D29/16
CPC分类号： F04D29/0416 , F04D1/006 , F04D29/167 , F04D29/2266
摘要： Apparatus, including a vertical double-suction pump, is provided featuring a pump casing and a double suction impeller arranged therein on a shaft. The pump casing has a pump casing wall. The double suction impeller has upper and lower shrouds with metal rims configured to form upper and lower isolating annuli between the double suction impeller and the wall of the pump casing in order to impede a recirculation flow from an impeller discharge to be able to act of the upper and lower shrouds and create a controlled axial thrust load from differentiated hydraulic pressure on the upper and lower shrouds. The upper and lower isolating annuli may also be geometrically varied between the upper and lower shrouds of the double suction impeller to create a pressure differential in a direction parallel to an axis of rotation of the double suction impeller.
摘要翻译：提供了一种包括立式双吸泵的装置，其特征在于其上设置有泵壳体和布置在其中的双吸叶轮。泵壳具有泵壳壁。双吸叶轮具有上和下护罩，其具有金属边缘，其被配置成在双抽风叶轮和泵壳的壁之间形成上隔离隔离环和下隔离环，以阻止来自叶轮排放的再循环流动，从而能够起作用上下护罩，并在上下护罩上产生不同液压的受控轴向推力载荷。上和下隔离环也可以在双吸叶轮的上和下护罩之间在几何上变化，以在平行于双吸叶轮的旋转轴线的方向上产生压力差。

6. 发明公开

EP1717449A3 A centrifugal pump and an impeller thereof 有权转让
标题翻译：离心泵叶轮内的
公开(公告)号：EP1717449A3
公开(公告)日：2014-06-04
申请号：EP06405151.9
申请日：2006-04-07
申请人： SULZER PUMPEN AG
发明人： Ahlroth, Jussi , Manninen, Heikki
IPC分类号： F04D29/22
CPC分类号： F04D29/2266
摘要： The present invention relates to a centrifugal pump and an impeller thereof. The present invention especially relates to modifying an impeller of a centrifugal pump in such a way that said pump may be used without a risk of damaging a shaft seal or like at capacities higher than that at the optimal operating point.
A characterizing feature of a centrifugal pump, comprising a pump volute (2), a rear wall (4) of said pump, an impeller (20) having a shroud (22) and balancing holes extending through said shroud, said impeller being attached on the pump shaft (6) and rotating inside said volute (2), is that said balancing holes (26) are arranged through the shroud (22) in such a way that an opening (30) of said holes (26) in the front face of the impeller shroud (22) is both in the rotational direction in ahead of an opening (32) located in the rear face of the impeller shroud (22) and closer to the axis (8) of the pump than the opening (32) in the rear face of the impeller shroud (22).

7. 发明公开

EP2411156A1 CENTRIFUGAL IMPELLER WITH CONTROLLED FORCE BALANCE 有权
标题翻译：具有受控功补偿器的离心式叶轮
公开(公告)号：EP2411156A1
公开(公告)日：2012-02-01
申请号：EP10756516.0
申请日：2010-01-25
申请人： WOODWARD, INC.
发明人： BARYSHNIKOV, Dmitriy
IPC分类号： B04B9/14 , B04B7/00
CPC分类号： F04D29/2266
摘要： An impeller for a centrifugal pump that includes a disk-shaped shroud having a central axis, a front surface, a rear surface, and a circular perimeter, and a hub at the center of the shroud, the hub having an axial bore. The impeller further includes a first set of vanes on the front surface of the shroud, the first set of vanes extending radially inward from the perimeter towards the hub, a second set of vanes on the rear surface of the shroud, the second set of vanes extending radially inward from the perimeter towards the hub, a balancing area on the rear surface of the shroud, the balancing area extending radially outward from the hub, and a number of openings in the shroud, the number of openings configured to allow a fluid to pass from one side of the shroud to the other.

8. 发明公开

EP1452740A3 Hydrodynamic sealing system for centrifugal systems 审中-公开
标题翻译：流体动压密封离心泵
公开(公告)号：EP1452740A3
公开(公告)日：2008-12-17
申请号：EP04380038.2
申请日：2004-02-19
申请人： CARESEAL, S.L.
发明人： Pares Criville, Antonio
IPC分类号： F04D29/22
CPC分类号： F04D29/2266
摘要： Comprises a double, asymmetric impeller (2) attached to a rotary shaft (3), a fixed housing (4) that surrounds said double impeller (2), a fluid inlet (5) in axial direction and a fluid outlet (6) in radial direction with respect to the double impeller (2), with said double impeller (2) defining a front side (7) which receives the entry of fluid and a rear side (8) close to the sealing zone (9) of the shaft (3) with the fixed housing (4), with said double impeller (2) being provided with means (10) for driving the fluid from its front side (7) to its rear side (8). Said system is characterised in that the means for driving the fluid comprise a plurality of openings (10) made in the core or intermediate wall (11) of said double impeller (2), arranged and dimensioned in such a way that the pressure in the sealing zone (9) is slightly higher or lower than atmospheric pressure, said system also including perturbing means to prevent a vortex effect in the sealing zone (9).

9. 发明公开

EP1760320A1 Pump with impeller, particularly for washing machines and similar household appliances 有权
标题翻译：泵叶轮在洗碗机循环泵可插入
公开(公告)号：EP1760320A1
公开(公告)日：2007-03-07
申请号：EP05425605.2
申请日：2005-08-30
申请人： Askoll Holding S.r.l.
发明人： Marioni, Elio
IPC分类号： F04D29/22 , F04D29/24
CPC分类号： F04D29/2266 , F04D29/242
摘要： A pump with impeller, particularly for washing machines and similar household appliances, comprising:
- a synchronous electric motor with permanent magnets rotor (5), contained in a pump body (2), and with a driving shaft (7) that axially crosses the rotor (5);
- an impeller (25) kinematically connected to said shaft (7) comprising a hub (26) with a plurality of vanes (30) projecting from a prevailing portion (28) thereof;

said impeller (25) comprising at least one auxiliary vane (35) projecting from the residual portion (29) of the hub (26) suitable for generating a fluid-dynamic motion to move away the possible lints present in the washing fluid.

10. 发明授权

EP1460275B1 Motorpumpe 有权
标题翻译：电动泵
公开(公告)号：EP1460275B1
公开(公告)日：2005-07-27
申请号：EP03006417.4
申请日：2003-03-21
申请人： GRUNDFOS A/S
发明人： Schmidt, Jörgen , Schmidt, Hans-Dieter
IPC分类号： F04D29/16 , F04D29/22
CPC分类号： F04D29/167 , F04D29/0467 , F04D29/2266

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