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Matches 1 - 50 out of 7,372

Document Document Title
WO/2019/092395A1
The present invention provides a liquid level sensor and an automatic calibration process which removes the need for prior manual calibration of the liquid level sensor, as this happens dynamically during installation and use of the pump...  
WO/2019/085001A1
A water drainage system and method. The water drainage system comprises: a water pump set (11, 21) provided with at least two water pumps, a control mechanism (12, 22) for controlling the operation of the water pump set (11, 21), and at ...  
WO/2019/084572A1
An integral motor pump module directs at least 90% of its rotor discharge over at least 50% of its motor housing surface, thereby cooling the motor with little or no need for a separate flow path. The discharge can flow through an annulu...  
WO/2019/081524A1
A method for maintaining a pumping system (2), that is part of a pumping station (1), in operational service (30), said pumping system (2) comprising a pump (20), a motor (21) driving the pump (20), and a pipe for discharging fluid by th...  
WO/2019/078865A1
A rotating machine (200) includes a housing (205), a shaft (230) supported in the housing (205) and having a bore (235) defined therein, and a sensor module (100) positioned in the bore (235). The sensor module (100) includes one or more...  
WO/2019/072420A1
A sensor (100) for detecting presence of water, for example within a submersible pump, includes a sleeve (102) that houses a contact element (204). A sensor (100) head is partially housed inside the sleeve (102), and encloses the contact...  
WO/2019/063593A1
The invention relates to a medical pump drive (100), at least comprising in each case at least: a housing (101) and a pump motor (103) provided in the housing (101); a rechargeable voltage source for storing electrical power, or a storag...  
WO/2019/058669A1
According to the present invention, an impeller (5) is provided with: a main plate (35) that is fixed to a rotating shaft (1); a shroud (37) that has a liquid inlet (30) and that faces the main plate (35); and a plurality of blades (38) ...  
WO/2019/053377A1
The subject matter of the present invention is a variable-delivery pump device comprising a pump body (2), an impeller (5) and a shut-off element (8) capable of translational movement and adjustably covering at least part of the outer pe...  
WO/2019/051577A1
A system for pumping fluid is provided, having two or more submersible pumps, each submersible pump having an inlet, an outlet, a pumping mechanism that pumps fluid from the inlet to the outlet, a fluid level sensor for measuring a fluid...  
WO/2019/051547A1
The present invention relates to the modulation of the flow rate of a body of water pumped through a conduit by a fixed speed pump. Pump control devices may comprise a drive converter to alter the operation of a pump drive driving the fi...  
WO/2019/042530A1
Coolant pumps for internal combustion engines having a drive shaft (18), a coolant pump impeller (20), which is arranged at least for conjoint rotation on the drive shaft (18) and via which coolant can be conveyed, a pump housing (10) an...  
WO/2019/042644A1
The invention relates to a mechanically driven coolant pump having a controllable delivery rate for a main delivery circuit from a first outlet and for a secondary delivery circuit from a second outlet of the coolant pump, said coolant p...  
WO/2019/040337A1
A hydrodynamic heater pump may include a housing and a stator fixed relative to the housing. A rotor may be coaxially aligned with and positioned adjacent the stator. The rotor and the stator define an interior region of a hydrodynamic c...  
WO/2019/036409A1
A multi-outlet fluid pump includes a housing, a motorized pump, an electrical power supply, and a self-locking thermal cutoff. In one form, the pump includes a first or primary thermal cutoff and a second or secondary thermal cutoff to p...  
WO/2019/034426A2  
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...  

Matches 1 - 50 out of 7,372