-
公开(公告)号：US4909705A
公开(公告)日：1990-03-20
申请号：US283963
申请日：1988-12-13
申请人： Hiroyuki Katsura , Akihisa Okada
发明人： Hiroyuki Katsura , Akihisa Okada
CPC分类号： F16J15/021 , F04D1/063 , F04D29/086 , F16J15/0806 , Y10S277/932
摘要： A multi-stage diffuser-type centrifugal pump suitable for feeding under pressure a low-temperature fluid such as a liquefied gas. Stages are respectively provided between adjacent ones of impellers provided in a plurality of stages. A cylindrical stage casing is provided in such a manner as to surround the stages, a sealant is provided between each stage and the stage casing to form a channel flow on an inner peripheral surface of the stage casing for flow from an upstream-side impeller to a downstream-side impeller. In addition, the sealant has a coefficient of thermal expansion which differs from the coefficient of thermal expansion of the stage and the stage casing.
摘要翻译： 一种多级扩散型离心泵，适用于在压力下进行低温液体如液化气。 在多个级中设置的相邻的叶轮之间分别设有台阶。 以围绕台阶的方式设置圆筒状的壳体，在各台与台壳体之间设置密封剂，在台架的内周面上形成有从上游侧叶轮流向的流路 下游侧叶轮。 此外，密封剂的热膨胀系数不同于载物台和载物台的热膨胀系数。
-
公开(公告)号：US07198457B2
公开(公告)日：2007-04-03
申请号：US10912554
申请日：2004-08-06
CPC分类号： F04D1/063 , F04D29/047
摘要： A single-shaft multistage pump is provided to make small-sized and space-saved possible. The single-shaft multistage pump includes a rotary shaft on which impellers are disposed at multiple stages, bearings and for supporting the rotary shaft, and a balance device adapted to apply, to the rotary shaft, a balance thrust force opposing an impeller thrust force. A water-lubricated bearing is used as each of the radial bearings, and the rotary shaft is supported by the water-lubricated bearings with a balance member of the balance device interposed therebetween.
摘要翻译： 提供单轴多级泵可以实现小型化和节省空间。 单轴多级泵包括旋转轴，叶轮设置在多个级上，轴承和用于支撑旋转轴的旋转轴，以及适于向旋转轴施加与叶轮推力相反的平衡推力的平衡装置。 使用水润滑轴承作为每个径向轴承，并且旋转轴由水润滑轴承支撑，其间具有平衡装置的平衡构件。
-
公开(公告)号：US20050158165A1
公开(公告)日：2005-07-21
申请号：US10912554
申请日：2004-08-06
IPC分类号： F04D15/00 , F04D1/06 , F04D13/00 , F04D29/04 , F04D29/041 , F04D29/046 , F04D29/047 , F04D29/12 , F16C17/02 , F16C17/14 , F01C1/063
CPC分类号： F04D1/063 , F04D29/047
摘要： A single-shaft multistage pump is provided to make small-sized and space-saved possible. The single-shaft multistage pump includes a rotary shaft on which impellers are disposed at multiple stages, bearings and for supporting the rotary shaft, and a balance device adapted to apply, to the rotary shaft, a balance thrust force opposing an impeller thrust force. A water-lubricated bearing is used as each of the radial bearings, and the rotary shaft is supported by the water-lubricated bearings with a balance member of the balance device interposed therebetween.
摘要翻译： 提供单轴多级泵可以实现小型化和节省空间。 单轴多级泵包括旋转轴，叶轮设置在多个级上，轴承和用于支撑旋转轴的旋转轴，以及适于向旋转轴施加与叶轮推力相反的平衡推力的平衡装置。 使用水润滑轴承作为每个径向轴承，并且旋转轴由水润滑轴承支撑，其间具有平衡装置的平衡构件。
-
-
搜索结果
3 条记录 (耗时 0.012 秒)
