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Patent Searching and Data


Matches 51 - 100 out of 7,471

Document Document Title
WO/2019/030658A1
A hybrid coolant pump assembly comprises a housing, a bearing shaft, and an impeller apparatus. The bearing shaft is rotatably supported within an internal cavity of the housing. A first clutch is disposed on the bearing shaft and is ope...  
WO/2019/031980A1
The invention relates to the field of mining, specifically to oil extraction using electric centrifugal pump units having a frequency-controlled electric motor, and serves to fully automate oil well operations using an electric centrifug...  
WO/2019/025525A1
The invention relates to a circulation pump assembly comprising a first inlet (84), an outlet (80), an electric drive motor (30) and at least one impeller (68; 100) driven by the drive motor (30) and which has at least one first flow pat...  
WO/2019/025526A1
The invention relates to a mixing device comprising a first (84) and a second (86) inlet and an outlet (80), wherein the first inlet (84) is connected to the outlet (80) via a first flow connection and the second inlet (86) is connected ...  
WO/2019/023139A1
An apparatus and method for sensing a rotational parameter of a rotating member of a downhole pumping system. The apparatus is capable of detecting motor rotation and pump operating conditions and includes control systems for methods uti...  
WO/2019/018816A1
A system includes a fluid pump and a first pressure sensor disposed on or near an inlet of the fluid pump. The system further includes a second pressure sensor disposed on or near an outlet of the fluid pump and a control system. The con...  
WO/2019/011854A1
The invention relates to a method for regulating the level in a container (10) to which liquid is fed by means of an inflow which, on average over time, does not drop below a certain minimum value. The regulation is performed by means of...  
WO/2019/008758A1
[Problem] To provide a fluid transfer system with which it is possible to suppress a deterioration in efficiency. [Solution] A pump system 1 comprises: a pump 3 for transferring a fluid; a motor 4 which is provided with a plurality of wi...  
WO/2019/005394A1
A method includes controlling a first power output to an electric machine during a transient event. Controlling the first power output includes measuring values of the first power output provided to the electric machine during the transi...  
WO/2018/236516A1
A fallback prevention valve apparatus, system and method is described. An electric submersible pump (ESP) fallback prevention system includes an ESP assembly positioned in a downhole well, the ESP assembly including production tubing ext...  
WO/2018/221766A1
Disclosed is a fluid device having a magnetic levitation impeller, the device comprising: a stator functioning as a housing while performing a function of a field magnet so as to provide magnetic flux; a rotor for simultaneously function...  
WO/2018/217984A1
A liquid sensing switch comprising an upper sensor plate linked to electronics, a lower sensor plate linked to the electronics, and a ground linked to the electronics, wherein a pump is activated when a liquid level rises above a positio...  
WO/2018/210740A1
The invention relates to a conveying apparatus having an electric drive (12) with a housing (1) with an inlet opening (3) and a plurality of outlet openings (2), having a conveying element (5), which is accommodated in a rotatable manner...  
WO/2018/213639A1
Design solutions to mitigate the following four fatal flaws in the conventional pump system design; namely, (1) surprised pump-failure in single pump design that can result in costly water damage; (2) the threat of fatal high voltage ele...  
WO/2018/205550A1
Disclosed is a pump capable of adjusting the pressure, comprising an electric motor (1), a pump body (3), a water outlet (4), an electric control case (5), a pressure adjusting seat (8), an adjusting screw (9) and a hole (10), wherein th...  
WO/2018/196007A1
A two-pump control circuit of a sewage pump. The two-pump control circuit controls two sets of drainage pump units; each set of drainage pump unit is correspondingly provided with a liquid level switch and different control liquid levels...  
WO/2018/197033A1
The invention relates to a method for detecting an abnormal operating state of a rotational-speed-controllable pump unit (1) operated at a specifiable rotational speed (n 0). A periodic excitation signal (fA(t)) of a certain frequency (f...  
WO/2018/200269A1
A method for controlling an ESP-lifted well in an optimal fashion using the ESP speed and choke opening as actuators subject to operational constraints.  
WO/2018/190239A1
Provided is a pump device configured so that, when fluid is caused to flow by an impeller driven by a motor, the impeller is prevented from being pulled toward a case body which defines a pump chamber. An impeller (7) is disposed in a pu...  
WO/2018/183273A1
The present invention pertains to an electric submersible pump (ESP) system. The system usually has one or more downhole devices comprising one or more pumps and one or more motors for operating the one or more pumps and surface equipmen...  
WO/2018/172520A1
The invention relates to a pumping and comminution device (1) comprising: at least one submersible pump (3) located in a container (2) that is suitable for receiving an inflow material (5) and a drive (4) for driving the submersible pump...  
WO/2018/174590A1
The present disclosure relates to a pump for transmitting washing water and generating steam and a dishwasher including the pump. The pump includes a housing; a washing water inlet pipe coupled to the housing to receive washing water; a ...  
WO/2018/173563A1
In an example embodiment, this pump system is provided with: a pump (10) for drawing a liquid at a first level up to a second level higher than the first level; a motor (20) for causing the pump to operate; a motor driving device (30) fo...  
WO/2018/167043A1
The invention relates to a centrifugal pump assembly having an electric drive motor (4, 6), an impeller (14) which is driven by the latter, and a pump housing (12) which surrounds the impeller and has at least two connectors (27, 32, 34)...  
WO/2018/166478A1
A water suction pump assembly, comprising a water suction pump (1), a water supply pipe (2) connected to an outlet of the water suction pump (1), and a water flow detecting apparatus (3) provided on the water supply pipe (2). The water f...  
WO/2018/169146A1
The present invention relates to a fluid coupling containing a power-free mechanical speed control unit for a pump wherein, in order to compensate for a discharging water pressure change in accordance with a change of a discharging rate ...  
WO/2018/169378A1
The present invention provides a water pump comprising: a body portion comprising a housing having an inlet and an outlet formed therein such that cooling water is introduced and discharged through the same, respectively, an impeller con...  
WO/2018/166971A1
The invention relates to a pump assembly having at least one rotationally driven impeller (14) and at least one valve element (18), which is rotatable about an axis of rotation (X) between at least two switching positions, wherein the va...  
WO/2018/167047A1
The invention relates to a centrifugal pump unit, comprising a drive motor, at least one impeller wheel (14) rotationally driven by said drive motor, and at least one valve device (32), which has a valve element (32) that can be moved by...  
WO/2018/166975A1
The invention relates to a pump assembly having an electric drive motor (4, 6), at least one impeller which is driven by the drive motor (4, 6), and at least one valve device (18) which lies in a flow path through the pump assembly and c...  
WO/2018/169377A1
The present invention provides a water pump comprising: a body portion comprising a housing, which has an inlet port and a discharge port through which a cooling water flows in or is discharged, an impeller, which is accommodated inside ...  
WO/2018/167031A1
The invention relates to a hydraulic structural unit having: a centrifugal pump aggregate which has an electric drive motor (4, 6) and at least one impeller wheel (14) driven by the drive motor; and at least one valve element (18) which ...  
WO/2018/166979A1
The invention relates to a centrifugal pump unit, comprising an electrical drive motor, at least one impeller wheel (14) driven thereby, and a pump housing (12), which surrounds the impeller wheel (14) and in which at least one valve ele...  
WO/2018/166639A1
The invention relates to a centrifugal pump aggregate having an electric drive motor and at least one impeller (38; 38') which is driven rotationally by said electric drive motor and is arranged in a pump housing (24; 24'), in which a fi...  
WO/2018/166967A1
The invention relates to a centrifugal pump aggregate having an electric drive motor (4, 6), an impeller (14) driven by said motor and at least one valve element (18), which can be moved by the electric drive motor (4, 6) directly or ind...  
WO/2018/166969A1
The invention relates to a pump assembly with an electric drive motor, at least one impeller (14) which is rotated by the electric drive motor, and a controller (17) which actuates the drive motor. The controller (17) is designed to sele...  
WO/2018/162291A1
The present invention relates to a method for operating a circulation pump, in particular a heating circulation pump, having a variable-speed pump drive, wherein the pump controller modifies the actual operating point of the pump in orde...  
WO/2018/162044A1
The present disclosure relates to the pump 100, 500. The pump 100, 500 includes a housing member 108, 508 having a first end portion 110, 510 and a second end portion 112, 512 distal to the first end portion 110, 510. The pump 100, 500 f...  
WO/2018/162290A1
The present invention relates to a method for operating a variable-speed circulation pump, in particular a heating circulation pump, wherein the pump controller detects by sensors at least one physical pump operating variable and indirec...  
WO/2018/162555A1
The present invention relates to a method for controlling the rotational speed of a centrifugal pump that is operated in an open hydraulic circuit, wherein the controller of the pump control calculates a desired rotational speed of the p...  
WO/2018/162547A1
The invention relates to a method for operating a circulation pump in a twin pump construction, wherein the circulation pump comprises at least two separate individual pumps, the pressure ports of which converge to form a common output p...  
WO/2018/157261A1
Method and system for determining the real-time flow into a wastewater pump station using analog level sensing technologies. An Accurate Level Generator mechanism supplies an accurate mean value out of multiple readings for each level us...  
WO/2018/158197A1
The invention relates to a circulation pump assembly (22) comprising an electric drive motor (10) and an electronic controller (12) for controlling the drive motor (10). The controller (12) is designed to control the rotational speed of ...  
WO/2018/154464A1
A pump assembly and a method for sensing rotary motion of the pump therein are disclosed. The pump assembly includes a pump, a controller, and an optional driven electric motor. The components may be axially aligned and mounted relative ...  
WO/2018/154099A1
In a fist aspect the invention relates to a method for controlling a pump (2) in connection with first activation of the individual pump (2) following a connection of the individual pump (2) to a power supply, said pump (2) being configu...  
WO/2018/150247A1
The invention relates to a pump assembly comprising a first liquid pump unit which has a first impeller that can be rotated in a first pump housing cavity and comprising a second liquid pump unit which is arranged downstream of the first...  
WO/2018/147027A1
Provided is a binary power generation system comprising: a working medium circulation path; an evaporator; an expander; an energy recovery device; a condenser; and a pump. The pump includes: a casing; a rotation shaft; and impellers. The...  
WO/2018/145000A1
A pump features a liquid sensing device (LSD) in combination with a housing. The LSD senses the level of a liquid collecting outside the pump and turns the pump on/off for pumping the liquid. The housing includes a housing wall to contai...  
WO/2018/141445A1
Flow-limiting valve (30) having a cage (60) which can be inserted into a fluid duct (112) and which has a first axial end and a second axial end, having a closure element (80) that is mounted on the cage so as to be able to move axially ...  
WO/2018/137019A1
A dual pump unit having a pair of pumps that provide parallel hydraulic paths, and are configured to operate concurrently in opposite rotational directions. The dual pump unit has a sealed casing which includes a suction flange, two volu...  

Matches 51 - 100 out of 7,471