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公开(公告)号：US20080031748A1
公开(公告)日：2008-02-07
申请号：US11790817
申请日：2007-04-27
IPC分类号： F04D13/02
CPC分类号： F04D29/026 , B29C65/1635 , B29C65/1667 , B29C65/1687 , B29C66/1222 , B29C66/1224 , B29C66/124 , B29C66/232 , B29C66/543 , B29C66/73921 , B29L2031/7496 , F04D29/426 , F04D29/628 , F05D2230/234 , F05D2300/43 , F05D2300/52 , Y10T29/49243 , Y10T403/477
摘要： The invention relates to a centrifugal pump comprising a pump housing made of injection-molded plastics with a first housing part, which is designed as a single piece with a suction connection and a pressure connection, and comprises a sealing area, by means of which said first housing part is joined in a liquid-tight manner to a second housing part, that receives an electric motor, and a motor housing part. It is the object of the present invention to provide a centrifugal pump, in which very good leak tightness is achieved with minimum number of parts, minimum weight and minimum assembly costs with universal applicability without impairing the visual overall impression of the centrifugal pump. This objective is achieved according to the invention in that the second housing part is made of a material that is permeable to laser light of a wavelength or a wavelength range, and the first housing part is made of a material that absorbs the same laser light, and the first housing part and the second housing part are heat-sealed to one another.
摘要翻译： 本发明涉及一种离心泵，其包括由注塑塑料制成的泵壳体，该泵壳体具有第一壳体部分，该第一壳体部分被设计成具有吸入连接和压力连接的单件，并且包括密封区域，借助于该密封区域， 第一壳体部分以液密方式连接到接收电动机的第二壳体部分和电动机容纳部分。 本发明的目的是提供一种离心泵，其中以最小数量的零件，最小重量和最小组装成本实现非常好的泄漏密封性，具有通用性，而不损害离心泵的视觉整体印象。 根据本发明实现了该目的，即第二壳体部分由对波长或波长范围的激光透过的材料制成，并且第一壳体部分由吸收相同激光的材料制成， 并且第一壳体部分和第二壳体部分彼此热密封。
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公开(公告)号：US09243646B2
公开(公告)日：2016-01-26
申请号：US13723678
申请日：2012-12-21
申请人： Grundfos Holding a/s
CPC分类号： F04D29/2222 , B29C65/1635 , F04D29/2227 , F04D29/628 , F05D2230/234 , F05D2300/43 , F05D2300/52
摘要： An impeller (2) for a centrifugal pump includes a first shroud having a plurality of blades (8). A second shroud is joined onto the first shroud by way of welding. Each blade (8) has an apex region (12), at which the blade contacts the second shroud. At least one of the blades (8) in a first section (20) of the apex region (12) has a weld connection to the second shroud, and in at least one second section (14) of the apex region (12) is free of a weld connection.
摘要翻译： 用于离心泵的叶轮（2）包括具有多个叶片（8）的第一护罩。 通过焊接将第二护罩连接到第一护罩上。 每个叶片（8）具有顶点区域（12），刀片在该顶点区域接触第二护罩。 顶点区域（12）的第一部分（20）中的至少一个叶片（8）具有与第二护罩的焊接连接，并且在顶点区域（12）的至少一个第二部分（14）中是 没有焊接连接。
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公开(公告)号：US20130164136A1
公开(公告)日：2013-06-27
申请号：US13723678
申请日：2012-12-21
申请人： Grundfos Holding a/s
IPC分类号： F04D29/22
CPC分类号： F04D29/2222 , B29C65/1635 , F04D29/2227 , F04D29/628 , F05D2230/234 , F05D2300/43 , F05D2300/52
摘要： An impeller (2) for a centrifugal pump includes a first shroud having a plurality of blades (8). A second shroud is joined onto the first shroud by way of welding. Each blade (8) has an apex region (12), at which the blade contacts the second shroud. At least one of the blades (8) in a first section (20) of the apex region (12) has a weld connection to the second shroud, and in at least one second section (14) of the apex region (12) is free of a weld connection.
摘要翻译： 用于离心泵的叶轮（2）包括具有多个叶片（8）的第一护罩。 通过焊接将第二护罩连接到第一护罩上。 每个叶片（8）具有顶点区域（12），刀片在该顶点区域接触第二护罩。 顶点区域（12）的第一部分（20）中的至少一个叶片（8）具有与第二护罩的焊接连接，并且在顶点区域（12）的至少一个第二部分（14）中是 没有焊接连接。
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公开(公告)号：US08002522B2
公开(公告)日：2011-08-23
申请号：US11790817
申请日：2007-04-27
CPC分类号： F04D29/026 , B29C65/1635 , B29C65/1667 , B29C65/1687 , B29C66/1222 , B29C66/1224 , B29C66/124 , B29C66/232 , B29C66/543 , B29C66/73921 , B29L2031/7496 , F04D29/426 , F04D29/628 , F05D2230/234 , F05D2300/43 , F05D2300/52 , Y10T29/49243 , Y10T403/477
摘要： A centrifugal pump comprising a pump housing made of injection-molded plastics with a first housing part, which is designed as a single piece with a suction connection and a pressure connection, and comprises a sealing area, by means of which said first housing part is joined in a liquid-tight manner to a second housing part, that receives an electric motor, and a motor housing part. In this centrifugal pump, very good leak tightness is achieved with minimum number of parts, minimum weight and minimum assembly costs with universal applicability without impairing the visual overall impression of the centrifugal pump. This objective is achieved in that the second housing part is made of a material that is permeable to laser light of a wavelength or a wavelength range, and the first housing part is made of a material that absorbs the same laser light, and the first housing part and the second housing part are heat-sealed to one another.
摘要翻译： 一种离心泵，包括由注射成型塑料制成的泵壳体，其具有第一壳体部分，其被设计为具有吸入连接和压力连接的单件，并且包括密封区域，借助于该密封区域，所述第一壳体部分 以液密方式连接到容纳电动机的第二壳体部分和电动机容纳部分。 在该离心泵中，具有最小数量的零件，最小重量和最小组装成本，具有普遍适用性而不损害离心泵视觉整体印象的非常好的泄漏密封性。 该目的的实现是，第二壳体部分由对波长或波长范围的激光透过的材料制成，并且第一壳体部分由吸收相同激光的材料制成，并且第一壳体 部分和第二壳体部分彼此热密封。
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