公开(公告)号：WO2016172168A1

公开(公告)日：2016-10-27

申请号：PCT/US2016/028382

申请日：2016-04-20

Applicant: FLUID HANDLING LLC

Inventor： RUFFO, Matthew J. ,  RUZICA, Paul J.

IPC: H02H3/00

CPC classification number: H02H9/005 ,  H02P1/26 ,  H02P1/42

Abstract: A motor control circuit is provided for connecting or disconnecting an AC voltage to an AC motor, having a switch having two switch contacts, configured to respond to a process variable and move between open and closed switch contact positions to connect or disconnect the AC voltage to the AC motor; and a snubber circuit arranged across the switch contacts in parallel with the AC motor, and configured to respond to motor inductance when the switch is moved between the open and closed switch contact positions, and provide arc suppression in the switch by dissipating energy stored in the motor inductance. The snubber circuit may include a network having a resistor connected in series with a capacitor, or a metal oxide varistor, or a transient voltage suppressor.

Abstract translation: 提供电动机控制电路，用于将交流电压连接到交流电动机或断开交流电动机，该交流电动机具有具有两个开关触点的开关，其被配置为响应于过程变量并且在打开和闭合的开关触点位置之间移动以将AC电压连接或断开 交流电机; 以及缓冲电路，其布置在与所述交流电动机并联的所述开关触点上，并且被配置为当所述开关在所述开路和闭合的开关接触位置之间移动时响应于电动机电感，并且通过消耗所述开关中的能量来提供所述开关中的电弧抑制 电机电感。 缓冲电路可以包括具有与电容器串联连接的电阻器或金属氧化物变阻器或瞬态电压抑制器的网络。

公开(公告)号：WO2017041104A1

公开(公告)日：2017-03-09

申请号：PCT/US2016/050422

申请日：2016-09-06

Applicant: FLUID HANDLING LLC

Inventor： RUZICA, Paul J.

IPC: H02K5/22

CPC classification number: F04D25/0686 ,  H02K5/132 ,  H02K5/22 ,  H02K7/003 ,  H02K11/0094

Abstract: A submersible pump featuring: a motor; run/start capacitors; a housing having a motor housing portion and a run/start capacitor housing portion separated by a housing wall, the motor housing portion having a motor housing chamber to contain the motor in an oil bath, the run/start housing portion having a run/start housing chamber, connection ports to allow sealed connections between electrical components in the motor housing portion and the run/start capacitor housing portion; a removable motor housing cover to close the motor housing portion; a removable run/start capacitor housing cover to close the run/start capacitor housing portion; and a capacitive cup, removeably arranged in the run/start capacitor housing chamber, the run/start capacitors to be contained in the capacitive cup, the cup having connection ports to allow sealed connections between the run/start capacitor and the electrical components in the motor housing portion in order to couple the run/start capacitors to the motor.

Abstract translation: 潜水泵特点：电机; 运行/启动电容器; 壳体，其具有马达容纳部分和由壳体壁分开的运行/起动电容器容纳部分，所述马达壳体部分具有马达容纳室，以将马达容纳在油浴中，所述运行/起动壳体部分具有运行/起动 容纳室，连接端口，以允许马达容纳部分中的电气部件与运行/起动电容器壳体部分之间的密封连接; 一个可移除的马达壳体盖，用于封闭马达壳体部分; 可移动的运行/启动电容器壳体盖以关闭运行/启动电容器壳体部分; 以及可移除地布置在运行/启动电容器容纳室中的电容杯，容纳在电容杯中的运行/启动电容器，杯具有连接端口，以允许运行/起动电容器和电气部件之间的密封连接 电动机壳体部分，以将运行/启动电容器耦合到电动机。

公开(公告)号：WO2017041099A1

公开(公告)日：2017-03-09

申请号：PCT/US2016/050412

申请日：2016-09-06

Applicant: FLUID HANDLING LLC

Inventor： RUZICA, Paul J.

IPC: F04D29/00 ,  F04D29/40 ,  F04D29/42 ,  F04D29/44

CPC classification number: F04D29/445 ,  F04D29/428

Abstract: A volute for a pump featuring a volute or casing having a pump inlet for receiving a fluid being pumped, a pump discharge for providing the fluid, and a volute or casing vane forming double volutes therein. The volute has an upper cutwater and also has a lower cutwater. The upper cutwater having a throat area dimensioned to be greater than and not equal to a lower cutwater throat area so the upper cutwater throat area and the lower cutwater throat area provide substantially equal flow velocity at both the upper cutwater and the lower cutwater in response to an angular sweep of the fluid being pumped. The end of passage for the upper cutwater is dimensioned with an upper cutwater passage area that is greater than and not equal to a corresponding lower cutwater passage area of the corresponding end of passage for the lower cutwater.

Abstract translation: 用于具有蜗壳或套管的泵的蜗壳具有用于接收被泵送的流体的泵入口，用于提供流体的泵排出口以及在其中形成双重蜗壳的蜗壳或套管叶片。 蜗壳具有较高的切割水，并且还具有较低的切割水。 上部切割水的喉部区域的尺寸大于并且不等于较低的切割水喉部区域，因此上切割水喉部区域和下切割水喉区域响应于上切割水和下切割水提供基本上相等的流速 正在泵送的流体的角度扫掠。 上部切割水的通道的末端的尺寸设计为具有大于并且不等于下部切割水的相应的通道末端的相应较低切割水通道面积的上部切割水通道面积。

公开(公告)号：EP3344878A1

公开(公告)日：2018-07-11

申请号：EP16843190.6

申请日：2016-09-06

Applicant: Fluid Handling LLC.

Inventor： RUZICA, Paul J.

IPC: F04D29/00 ,  F04D29/40 ,  F04D29/42 ,  F04D29/44

CPC classification number: F04D29/445 ,  F04D29/428

Abstract: A volute for a pump featuring a volute or casing having a pump inlet for receiving a fluid being pumped, a pump discharge for providing the fluid, and a volute or casing vane forming double volutes therein. The volute has an upper cutwater farthest from the pump discharge defining an upper cutwater throat area and an end of passage for the upper cutwater, and also has a lower cutwater closest to the pump discharge defining a lower cutwater throat and a corresponding end of passage for the lower cutwater. The upper cutwater throat area is dimensioned to be greater than and not equal to the lower cutwater throat area so the upper cutwater throat area and the lower cutwater throat area provide substantially equal flow velocity at both the upper cutwater and the lower cutwater in response to an angular sweep of the fluid being pumped. The end of passage for the upper cutwater is dimensioned with an upper cutwater passage area that is greater than and not equal to a corresponding lower cutwater passage area of the corresponding end of passage for the lower cutwater so that upper and lower cutwater passage areas at the pump discharge are balanced as a function of differing rates of flow of the fluid being pumped therein and so that the fluid being pumped from associated ends of the upper and lower cutwater passage areas meets at the pump discharge with a substantially equal velocity.

公开(公告)号：EP3345285A1

公开(公告)日：2018-07-11

申请号：EP16843194.8

申请日：2016-09-06

Applicant: Fluid Handling LLC.

Inventor： RUZICA, Paul J.

IPC: H02K5/22

CPC classification number: F04D25/0686 ,  H02K5/132 ,  H02K5/22 ,  H02K7/003 ,  H02K11/0094

Abstract: A submersible pump is provided featuring: a motor; run/start capacitors having run/start capacitor connectors; a housing having a motor housing portion and a run/start capacitor housing portion separated by a housing wall, the motor housing portion having a motor housing chamber to receive/contain the motor and oil for immersing the motor in an oil bath, the run/start housing portion having a run/start housing chamber, the housing wall having connection ports to allow sealed connections between electrical components in the motor housing portion and the run/start capacitor housing portion; a removable motor housing cover to couple/close the motor housing portion; a removable run/start capacitor housing cover to couple/close the run/start capacitor housing portion; and a capacitive cup having a side wall portion and a bottom wall portion, to be removeably arranged in the run/start capacitor housing chamber, the bottom wall portion to mount the run/start capacitors to be contained/surrounded by the side wall portion, the bottom wall portion having corresponding connection ports to allow the sealed connections between the run/start capacitor connectors and the electrical components in the motor housing portion in order to couple the run/start capacitors to the motor.