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公开(公告)号：US5464327A
公开(公告)日：1995-11-07
申请号：US159631
申请日：1993-12-01
申请人： Robert P. Horwitz
发明人： Robert P. Horwitz
CPC分类号： E03B7/075 , E03B5/02 , F04B49/022 , F04B2205/05 , F04B2205/09
摘要： A water pressure control system in which the pressurizing pump is turned on only in response to low pressure but is turned off only in response to low water flow rates. Water flow is detected with a magnetic switch displaced by water movement. After the pump is turned on, it can not be turned off for ten seconds, to smooth operation. When the system is first activated, the pump is turned on for sixty seconds, without regard to the other control functions, to guarantee priming of the pump.
摘要翻译： 一种水压控制系统，其中加压泵仅在低压下打开，而仅在响应于低水流量时才关闭。 水流通过水开关移动的磁性开关被检测到。 泵打开后，不能关闭十秒钟，以使其平稳运行。 当系统首次启动时，泵将打开六十秒钟，而不考虑其他控制功能，以保证泵的起动。
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2.发明授权Rotary, self-priming, liquip pump, and an impellers and shaft assembly therefor, and a flexible-impeller pump assembly 失效旋转，自吸，液体泵，以及用于其的叶轮和轴组件，以及柔性叶轮泵组件
公开(公告)号：US5599171A
公开(公告)日：1997-02-04
申请号：US440793
申请日：1995-05-15
申请人： Robert P. Horwitz
发明人： Robert P. Horwitz
CPC分类号： F04C5/00 , F04C11/005 , F04D9/041
摘要： A pump housing has a plurality of chambers formed therein, and a shaft journaled within, the shaft having impellers keyed thereto. Each chamber has one of the impellers disposed therein. One of the impellers is the primary liquid-working element, and has rigid vanes. The vanes are generously spaced apart from the enclosing chamber walls. A second impeller has flexible vanes, and serves as a priming element; it has an intimate fit in its chamber and cooperates with an outlet flapper valve to create a negative pressure in the liquid inlet. Consequently, the pump can self-prime even when absolutely dry.
摘要翻译： 泵壳体具有形成在其中的多个腔室，以及轴承在其内的轴，所述轴具有与其相连的叶轮。 每个室具有设置在其中的叶轮之一。 叶轮中的一个是主要的液体作用元件，并且具有刚性叶片。 叶片与封闭室壁大致间隔开。 第二叶轮具有柔性叶片，并且用作起动元件; 它在其室内具有紧密配合，并与出口挡板阀配合以在液体入口中产生负压。 因此，即使在绝对干燥的情况下，泵也可以自给自足。
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公开(公告)号：US4538959A
公开(公告)日：1985-09-03
申请号：US438076
申请日：1982-11-01
申请人： Frank J. Cantor , Robert P. Horwitz
发明人： Frank J. Cantor , Robert P. Horwitz
CPC分类号： F04D29/2266
摘要： A clean-in-place pump is disclosed in which the hub of the impeller extends into a pocket in which particles from the fluid being pumped may become entrapped. Axial slots in the drive shaft of the impeller create turbulence within the pocket to dislodge the particles. Back vanes on the impeller and passages through the impeller vane mounting disc cooperate to cause fluid to circulate through the pocket to flush out the particles.
摘要翻译： 公开了一种清洁的泵，其中叶轮的轮毂延伸到袋中，其中来自被泵送的流体的颗粒可能被捕获。 在叶轮的驱动轴中的轴向槽在袋内产生湍流以移除颗粒。 叶轮上的后叶片和通过叶轮叶片安装盘的通道配合使流体循环通过口袋以冲洗出颗粒。
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