公开(公告)号：US5785495A

公开(公告)日：1998-07-28

申请号：US624694

申请日：1996-03-25

申请人： Peer Springer ,  Roland Wellmeier

发明人： Peer Springer ,  Roland Wellmeier

IPC分类号： F04D3/00 ,  F04D7/00 ,  F04D29/52 ,  F04D29/54 ,  F04D29/34

CPC分类号： F04D3/005 ,  F04D29/528 ,  F04D29/548 ,  F04D7/00 ,  Y10S415/914

摘要： A centrifugal pump having a housing which includes an impeller mounted in the housing. At least one guide vane is mounted between a hub and the housing and in-line with the impeller. The guide vane has a leading guide. A recess is provided in proximity to the leading edge of the guide vane providing a connection between the spaces located on both sides of guide vane to prevent clogging of the impeller by fibrous components flowing in pump medium.

摘要翻译： 一种具有壳体的离心泵，该壳体包括安装在壳体中的叶轮。 至少一个引导叶片安装在轮毂和壳体之间并与叶轮成一直线。 导叶有一个领先的指导。 在引导叶片的前缘附近设置凹部，其提供位于导向叶片两侧的空间之间的连接，以防止在泵介质中流动的纤维组分堵塞叶轮。

公开(公告)号：US5755554A

公开(公告)日：1998-05-26

申请号：US769453

申请日：1996-12-18

申请人： Michael Leslie Ryall

发明人： Michael Leslie Ryall

IPC分类号： F04D3/00 ,  F04D19/02 ,  F04D29/54 ,  F04D31/00 ,  F04D29/44

CPC分类号： F04D31/00 ,  F04D19/028 ,  F04D29/544 ,  F04D29/548 ,  F04D3/00

摘要： A multistage pump or compressor includes a series of axial flow stages. Each stage comprises an impeller for imparting whirl to the pumped fluid in one direction and a stator including vanes for imparting whirl to the pumped fluid in the opposite direction. The stator vanes define flow passages configured such that the fluid flows through the passages at substantially constant absolute velocity. The average ratio of stage axial length to impeller diameter for each axial flow stage is less than 0.4.

摘要翻译： 多级泵或压缩机包括一系列轴流级。 每个阶段包括用于在一个方向上向抽吸流体施加旋转的叶轮和包括叶片的定子，所述叶片用于沿相反方向向泵送的流体施加涡流。 定子叶片限定流动通道，其构造成使得流体以基本上恒定的绝对速度流过通道。 每个轴流阶段的平台轴向长度与叶轮直径的平均比值小于0.4。

公开(公告)号：US5304034A

公开(公告)日：1994-04-19

申请号：US840582

申请日：1992-02-24

申请人： Matheus A. M. Bouwman

发明人： Matheus A. M. Bouwman

IPC分类号： F04D13/02 ,  F04D29/52 ,  F04D29/54 ,  F04D29/64 ,  F01D25/24

CPC分类号： F04D29/64 ,  F04D13/02 ,  F04D29/528 ,  F04D29/548 ,  F04D29/648

摘要： The disclosure discloses a method for constructing a pumping installation which includes a prefabricated concrete pump house and a prefabricated concrete suction box. The pump house and suction box are then placed on and coupled to a workfloor manufactured at the building site. A pump is then installed in the pump house.

摘要翻译： 本公开公开了一种用于构造泵送装置的方法，其包括预制混凝土泵房和预制混凝土抽吸箱。 然后将泵房和抽吸箱放置在并连接到在建筑工地制造的工作地板。 然后将泵安装在泵房中。

公开(公告)号：US5221182A

公开(公告)日：1993-06-22

申请号：US955230

申请日：1992-10-01

申请人： Ulf Arbeus

发明人： Ulf Arbeus

IPC分类号： F04D29/44 ,  F04D29/54

CPC分类号： F04D29/448 ,  F04D29/548 ,  F05D2240/121

摘要： The vanes (6) of a pump housing (5) are designed with strongly back swept leading edges (7) as seen in the direction of the flow, the vanes (6) being given a bulb form in the outward direction.

摘要翻译： 泵壳体（5）的叶片（6）被设计成沿着流动方向看到的强烈后掠的前缘（7），叶片（6）沿向外的方向被赋予球形。

公开(公告)号：US4900222A

公开(公告)日：1990-02-13

申请号：US289123

申请日：1988-12-23

申请人： Sen Y. Meng ,  Raymond B. Furst

发明人： Sen Y. Meng ,  Raymond B. Furst

IPC分类号： F04D29/18 ,  F04D29/42 ,  F04D29/44 ,  F04D29/54

CPC分类号： F04D29/548 ,  F04D29/4273 ,  Y10S415/914

摘要： A rotary pump with an inlet flow duct having a convergent section upstream the tips of the rotor blades. The convergent section decreases the cross-sectional flow area of the inlet flow duct prior to the flow being introduced into the rotor, thereby creating a substantially uniform velocity profile in the flow just upstream the rotor blades.

公开(公告)号：US4427338A

公开(公告)日：1984-01-24

申请号：US385156

申请日：1982-06-04

申请人： Raymond B. Furst

发明人： Raymond B. Furst

IPC分类号： F04D29/04 ,  F04D29/54

CPC分类号： F04D29/548 ,  F04D29/0416

摘要： The straightening vanes of a waterjet pump are designed to produce a low-pressure area, and the downstream side of the rotor drum is located inside said low-pressure area to eliminate the need for an axial thrust control seal.

摘要翻译： 水射流泵的矫直叶片被设计成产生低压区域，并且转子鼓的下游侧位于所述低压区域内，以消除对轴向推力控制密封的需要。

公开(公告)号：US3957403A

公开(公告)日：1976-05-18

申请号：US536831

申请日：1974-12-27

申请人： Albert H. Sloan

发明人： Albert H. Sloan

IPC分类号： F04D13/04 ,  F04D29/04 ,  F04D29/046 ,  F04D29/049 ,  F04D29/12 ,  F04D29/54 ,  F04B9/08 ,  F01D1/02

CPC分类号： F04D29/049 ,  F04D13/046 ,  F04D29/0462 ,  F04D29/126 ,  F04D29/548

摘要： A dewatering pump assembly for pumping water from excavations or other holes in the ground and upwardly to a more or less remote discharge area. The pump assembly includes a housing in which the impeller, fluid motor, and the connecting drive shaft all are located and the drive shaft and its bearings sealed in a bath of pressurized oil to prevent water from leaking into the housing.

摘要翻译： 一种脱水泵组件，用于从地下的挖掘或其他孔中抽水，并向上或向远离排放区域排水。 泵组件包括壳体，其中叶轮，流体马达和连接驱动轴全部位于其中，驱动轴及其轴承密封在加压油浴中以防止水泄漏到壳体中。

公开(公告)号：US3957402A

公开(公告)日：1976-05-18

申请号：US547378

申请日：1975-02-06

申请人： Albert H. Sloan

发明人： Albert H. Sloan

IPC分类号： F04D13/04 ,  F04D29/046 ,  F04D29/049 ,  F04D29/54 ,  F04B17/00

CPC分类号： F04D29/049 ,  F04D13/046 ,  F04D29/0462 ,  F04D29/548

摘要： A dewatering pump assembly for water pumping apparatus for pumping water from excavations or other holes in the ground and upwardly to a more or less remote discharge area. The apparatus finds particular utility for use, for example, by contractors, utility companies, or the like, and includes a power source, preferably mobile or easily transportable, such as an internal combustion engine or an electric motor or other power sources. A pressure fluid tank assembly and a pressure fluid pump is connected directly to the power source, and a water pump assembly is located down in the water at the bottom of the hole or excavation and includes a housing in which an impeller, a fluid motor, and the connecting drive shaft all are located. The fluid pressure pump which is driven directly by the power source is connected by long flexible conduits to the motor of the pump assembly. The pump assembly includes a heat exchanger which is secured on the lower end of assembly and the pressure fluid conduits act to convey a portion of the pressure fluid to and from the heat exchanger to thereby cool the pressure fluid. The heat exchanger is located strategically in the water being pumped to thereby efficiently transfer heat from the pressure fluid to the water being pumped.

摘要翻译： 一种用于抽水设备的脱水泵组件，用于从地下的挖掘或其他孔中抽取水，并向上或向远离排放区域排出水。 该装置特别适用于例如承包商，公用事业公司等，并且包括动力源，优选是可移动的或易于运输的，诸如内燃机或电动马达或其他动力源。 压力流体箱组件和压力流体泵直接连接到动力源，并且水泵组件位于孔或挖掘底部的水中，并且包括壳体，其中叶轮，流体马达， 连接驱动轴全部位于。 由电源直接驱动的流体压力泵通过长柔性导管连接到泵组件的电动机。 泵组件包括固定在组件下端的热交换器，并且压力流体导管用于将压力流体的一部分输送到热交换器和从热交换器输送压力流体，从而冷却压力流体。 热交换器在策略上位于被泵送的水中，从而有效地将热量从压力流体传递到被泵送的水。

公开(公告)号：US3406632A

公开(公告)日：1968-10-22

申请号：US57708966

申请日：1966-09-02

申请人： GRENOBLOISE ETUDE APPL

发明人： JACQUES DUPORT ,  GILBERT MARTIN

IPC分类号： B63H25/46 ,  F04D3/00 ,  F04D15/00 ,  F04D29/54

CPC分类号： F04D15/0055 ,  B63H25/46 ,  F04D3/00 ,  F04D29/548 ,  Y10S415/91

公开(公告)号：US2465425A

公开(公告)日：1949-03-29

申请号：US54639244

申请日：1944-07-24

申请人： FAIRBANKS MORSE & CO

发明人： BOWER CLARK D

IPC分类号： F04D29/04 ,  F04D29/044 ,  F04D29/047 ,  F04D29/54

CPC分类号： F04D29/047 ,  F04D29/044 ,  F04D29/548