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公开(公告)号:US20090208336A1
公开(公告)日:2009-08-20
申请号:US11719842
申请日:2005-11-03
申请人: Martin Lindskog
发明人: Martin Lindskog
IPC分类号: F04D29/24
CPC分类号: F04D29/2288 , F04D29/183 , F04D29/242
摘要: The present invention relates to a pump impeller (12) of a centrifugal or half axial type to be used in a pump for pumping liquids, wherein the impeller is arranged with one or several vanes (18), that the vanes are attached to cover discs (12, 16) on each side, forming a so called closed impeller wheel, characterized in that the leading edges (40) of the vanes are swept backwards at the inlet opening (42) in one of the cover discs (16) of the impeller.
摘要翻译: 本发明涉及一种用于泵送液体的离心或半轴型泵泵叶轮(12),其中叶轮布置有一个或多个叶片(18),叶片附接到盖盘 (12,16),形成所谓的封闭式叶轮,其特征在于,叶片的前缘(40)在其中一个盖盘(16)的入口(42)处向后扫掠 叶轮。
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公开(公告)号:US07766605B2
公开(公告)日:2010-08-03
申请号:US10576322
申请日:2004-10-20
申请人: Martin Lindskog
发明人: Martin Lindskog
IPC分类号: F04D29/08
CPC分类号: F04D29/167 , F04D7/045
摘要: The present invention relates to a centrifugal pump for pumping of liquids containing pollutions mainly in the form of solid particles, which pump comprises a drive unit, a hydraulic unit, whereby the hydraulic unit comprises a pump housing (20) and a pump impeller (12) rotationally arranged inside the housing, the pump impeller comprising an upper (14) and a lower (16) cover disc and a number of intermediate vanes (18). The invention is characterised in that a bottom wall (22) of the pump housing, having a central inlet opening (24), is arranged with at least one spirally extending back flow affecting means (32, 34) on the side facing the lower cover disc extending parts of or full turns around the inlet opening.
摘要翻译: 本发明涉及一种用于泵送主要为固体颗粒形式的污染的液体的离心泵,该泵包括驱动单元,液压单元,由此液压单元包括泵壳体(20)和泵叶轮(12) ),旋转地布置在壳体内部,泵叶轮包括上部(14)和下部(16)盖盘和多个中间叶片(18)。 本发明的特征在于,具有中心入口(24)的泵壳的底壁(22)布置成在面向下盖的一侧上具有至少一个螺旋形延伸的后流动影响装置(32,34) 圆盘延伸部分或整个入口开口周围。
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公开(公告)号:US20070274820A1
公开(公告)日:2007-11-29
申请号:US10576322
申请日:2004-10-20
申请人: Martin Lindskog
发明人: Martin Lindskog
IPC分类号: F04D29/42
CPC分类号: F04D29/167 , F04D7/045
摘要: The present invention relates to a centrifugal pump for pumping of liquids containing pollutions mainly in the form of solid particles, which pump comprises a drive unit, a hydraulic unit, whereby the hydraulic unit comprises a pump housing (20) and a pump impeller (12) rotationally arranged inside the housing, the pump impeller comprising an upper (14) and a lower (16) cover disc and a number of intermediate vanes (18). The invention is characterised in that a bottom wall (22) of the pump housing, having a central inlet opening (24), is arranged with at least one spirally extending back flow affecting means (32, 34) on the side facing the lower cover disc extending parts of or full turns around the inlet opening.
摘要翻译: 本发明涉及一种用于泵送主要为固体颗粒形式的污染的液体的离心泵,该泵包括驱动单元,液压单元,由此液压单元包括泵壳体(20)和泵叶轮(12) ),旋转地布置在壳体内部,泵叶轮包括上部(14)和下部(16)盖盘和多个中间叶片(18)。 本发明的特征在于,具有中心入口(24)的泵壳的底壁(22)布置成在面向下盖的一侧上具有至少一个螺旋形延伸的后流动影响装置(32,34) 圆盘延伸部分或整个入口开口周围。
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