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公开(公告)号：US07789617B2
公开(公告)日：2010-09-07
申请号：US11580158
申请日：2006-10-13
IPC分类号： F04D29/44
CPC分类号： F04D29/2277 , F04D29/448
摘要： A suction stage for a pump with a centrifugal wheel, the suction stage including a rotational impeller equipped with a hub and arranged upstream of the centrifugal wheel, the suction stage further including a diffuser arranged between the impeller and the centrifugal wheel, the diffuser including a plurality of blades. The hub has a downstream surface extending axially so as to converge toward the centrifugal wheel, and the blades of the diffuser have free ends, the blades protruding radially toward the downstream surface.
摘要翻译： 一种用于具有离心轮的泵的吸入级，所述抽吸级包括配备有轮毂的旋转叶轮并且设置在所述离心轮的上游，所述抽吸级还包括布置在所述叶轮和所述离心轮之间的扩散器，所述扩散器包括 多个叶片。 轮毂具有轴向延伸以朝向离心轮会聚的下游表面，并且扩散器的叶片具有自由端，叶片朝向下游表面径向突出。
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公开(公告)号：US20080080973A1
公开(公告)日：2008-04-03
申请号：US11580158
申请日：2006-10-13
IPC分类号： F01D9/00
CPC分类号： F04D29/2277 , F04D29/448
摘要： The invention relates to a suction stage (12) for a pump (10) with centrifugal wheel, the suction stage (12) comprising a rotational impeller (18) equipped with a hub (20) and arranged upstream of the centrifugal wheel (14), the suction stage (12) further comprising a diffuser (34) arranged between the impeller (18) and the centrifugal wheel (14), the diffuser (34) comprising a plurality of blades (36).The invention is characterised by the fact that the hub (20) has a downstream surface (20b) extending axially so as to converge toward the centrifugal wheel, and in that the blades (36) of the diffuser (34) have free ends, said blades protruding radially toward said downstream surface in such a way that the free ends of the blades make said downstream surface (20b) flush.
摘要翻译： 本发明涉及一种用于具有离心轮的泵（10）的抽吸级（12），所述抽吸级（12）包括配备有毂（20）并且布置在所述离心轮（14）上游的旋转叶轮（18） 所述吸入台还包括布置在所述叶轮（18）和所述离心轮（14）之间的扩散器（34），所述扩散器（34）包括多个叶片（36）。 本发明的特征在于，毂（20）具有轴向延伸以朝向离心轮会聚的下游表面（20b），并且扩散器（34）的叶片（36）具有自由端， 所述叶片朝向所述下游表面径向突出，使得叶片的自由端使所述下游表面（20b）齐平。
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公开(公告)号：US20120230816A1
公开(公告)日：2012-09-13
申请号：US13391977
申请日：2010-07-21
IPC分类号： F03B3/00
CPC分类号： F04D29/42
摘要： The sealing of a turbine casing is reinforced by decoupling a fastening flange from a remainder of a housing. The casing includes a body that is externally reinforced by axial ribs that are connected to an annular rib and the fastening flange is attached to the annular rib by an annular wall portion that is thinner than the annular rib and than the flange.
摘要翻译： 涡轮机壳体的密封通过将紧固凸缘与壳体的其余部分分离来加强。 壳体包括由轴向肋部外部加强的主体，所述轴向肋连接到环形肋，并且紧固凸缘通过比环形肋比凸缘更薄的环形壁部附接到环形肋。
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公开(公告)号：US09086077B2
公开(公告)日：2015-07-21
申请号：US13391977
申请日：2010-07-21
IPC分类号： F04D29/42
CPC分类号： F04D29/42
摘要： The sealing of a turbine casing is reinforced by decoupling a fastening flange from a remainder of a housing. The casing includes a body that is externally reinforced by axial ribs that are connected to an annular rib and the fastening flange is attached to the annular rib by an annular wall portion that is thinner than the annular rib and than the flange.
摘要翻译： 涡轮机壳体的密封通过将紧固凸缘与壳体的其余部分分离来加强。 壳体包括由轴向肋部外部加强的主体，所述轴向肋连接到环形肋，并且紧固凸缘通过比环形肋比凸缘更薄的环形壁部附接到环形肋。
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