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WO/2021/202712A1 |
A protector for an electric submersible pump includes a plurality of chambers, with adjacent or consecutive pairs of chambers coupled, e.g., fluidly coupled, via a series or parallel body. The body defines two separate hydraulic circuits...
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WO/2021/202689A1 |
An electrically operated displacement pump includes an electric motor (22) having a stator (28) and a rotor (30). The rotor (30) is connected to a fluid displacement member (20a; 20b) to drive axial reciprocation of the fluid displacemen...
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WO/2021/197556A1 |
The invention relates to a high pressure washer comprising a housing (15) with a front side, a pump, a water supply hose connected to a pump within the housing and a high pressure hose connected to the pump, so that the water supply hose...
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WO/2021/197994A1 |
The present invention relates to a pump (1) having a pump actuator (2) which comprises at least one electroactive polymer, wherein the at least one electroactive polymer is arranged in such a way that a deformation of the at least one el...
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WO/2021/202699A1 |
A fluid moving apparatus (12) includes an electric motor (24) having a rotor (42) and a stator (44) and a fluid displacement member (34). The rotor (42) rotates relative to the stator (44) on a common axis (CA) to generate a rotational o...
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WO/2021/186101A1 |
An electrohydraulic device comprises an electric machine (101), a hydraulic device (105), and a gear (102) that has a first shaft (103) attached to a rotor (104) of the electric machine, a second shaft (106) configured to drive the hydra...
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WO/2021/175334A1 |
A high-pressure cleaning machine motor pump unit suitable for internal meshing deceleration transmission, comprising a high-pressure pump assembly (100), an oil cylinder assembly (200) and a high-pressure cleaning machine motor unit (300...
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WO/2021/167565A1 |
The present invention is a device that pumps water by being driven from the stream and tidal currents, mainly consists of the following; cylindrical impeller (1) that is partially or completely submerged in water; impeller shaft (2) plac...
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WO/2021/168125A1 |
A buoyant hydrodynamic pump is disclosed that can float on a surface of a body of water over which waves tend to pass. Embodiments incorporate an open-bottomed tube with a constriction. The tube partially encloses a substantial volume of...
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WO/2021/151578A1 |
The invention relates to a device (20) for producing electrical energy in a conveyor belt (9) of a belt conveyor (1), wherein the device comprises a generator (35) for generating electrical energy and preferably a battery (41) for storin...
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WO/2021/152052A1 |
The device (100) for preventing gas leaks from a compressor (54) at the interface between two gas transportation networks comprises: - a compressor seal (55), - a gas engine (50) driving the compressor, - a pneumatic booster (30) provide...
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WO/2021/146726A1 |
A hydraulic fracturing spread system has modular high-pressure fracturing fluid manifold assemblies which couple to form a large trunk line for collecting and conveying high pressure fracturing fluid toward the well bore. Oil-hydraulic i...
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WO/2021/141362A1 |
A motor comprises: a housing including a partition wall for partitioning a first space and a second space; a stator arranged in the first space; a rotor arranged in the stator; a shaft rotating along with the rotor and having a sensor ma...
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WO/2021/138659A1 |
A peristaltic metering pump for aquariums, vivariums and terrariums, comprising an inlet port (36); an outlet port (38); a stator (18) having an internal surface (19); a tubing (30) having an inlet end (32) connected to the inlet port (3...
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WO/2021/128686A1 |
A pump head (100), a pressure pump (200), and a pressure pump control method. The pump head (100) comprises a pump body (110), a piston (120), a piston rod (130), and an expandable first pressure stabilizing tube (140). The piston (120) ...
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WO/2021/128037A1 |
A wear-resistant plunger slurry pump, comprising a transmission assembly (1), a plunger assembly (2), a sealed lubricating piece (3), and a pump body assembly (4); the plunger assembly (2) comprises: plunger wear-resistant sleeves (2-2),...
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WO/2021/122123A1 |
A pump arrangement is provided for a breast pump system having a pump motor assembly and a damping arrangement, providing a coupling between an outer surface of the pump motor assembly and an inner surface of a housing for the pump arran...
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WO/2021/126791A1 |
A system including an active cooling system is described. The active cooling system includes a cooling element in communication with a fluid and configured to use vibrational motion to direct a fluid toward a surface of heat-generating s...
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WO/2021/115524A1 |
The invention relates to an electric-motor-driven hydraulic pump actuator (1) with two plate-like housing bodies (3, 4) which are connected sealingly to one another with the interposition of an intermediate plate (5) in order to form a h...
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WO/2021/109758A1 |
A main machine assembly (100) of a cleaning machine (1000) and a cleaning machine (1000) with same. The main machine assembly (100) comprises: a shell assembly (10), wherein the shell assembly (10) is provided with a mounting cavity (11)...
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WO/2021/110202A1 |
The invention relates to a pump unit (100) and to a method for controlling same, in particular for actuating and/or providing a supply to at least one component of a drive train of a motor vehicle by means of at least one setpoint volume...
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WO/2021/104783A1 |
The invention proposes that an externally powered piston (4) of an electromechanical power brake pressure generator (24) is radially guided with a guiding sleeve (5) in an externally powered cylinder bore (3) of a hydraulic block (2) of ...
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WO/2021/103044A1 |
Disclosed are an active pressure compensation structure of a corer provided with an electric motor for boosting the pressure, and a method. The structure comprises a pressure compartment (1), a plunger pump, an electric motor (3) and a t...
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WO/2021/106218A1 |
The purpose of the present invention is to provide a power generation device and a power generation method that generate power by rotational motion and reciprocating motion to transfer a substance such as gas and liquid and achieve energ...
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WO/2021/104790A1 |
The invention proposes guiding an external-power piston (5) in an external-power cylinder bore (4) of a hydraulic block (2) of a hydraulic unit (1) of an externally powered hydraulic vehicle brake system in only one axially delimited gui...
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WO/2021/102036A1 |
A high pressure pump comprising a fluid end mechanically coupled to a power end. The power end is modular and comprises a crankshaft section, a crosshead section, and a connector section coupled together by a first set of stay rods. The ...
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WO/2021/099025A1 |
The invention relates to an electrohydraulic actuator for use under water, having: an electrically driven pump; at least one hydraulic cylinder that comprises at least one or two cylinder chambers and a slidable piston which delimits the...
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WO/2021/089757A1 |
A method for altering one or more properties of a dielectric fluid for use in an electrohydrodynamic, EHD, thermal management system (100), as well as the system, are provided. The system comprises at least one EHD pump unit (110) compri...
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WO/2021/083953A1 |
The invention relates to a method for determining operating properties of a drill-rod borehole pump (1), comprising a pump head (110), which is connected to a kinematics converter (120) via a drill rod (5, 10), and the kinematics convert...
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WO/2021/074315A1 |
An electro-hydrostatic actuation system and a method for driving a hydraulic actuator, e.g. a hydraulic cylinder, are described, wherein the system comprising a leakage branch, and wherein preferably an additional pump is arranged. The s...
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WO/2021/071773A1 |
A fluid transfer pump assembly is provided that includes an electronic device enclosure, a bore, and a vent pin. The electronic device enclosure includes a wall separating an interior from an exterior of the explosion-proof fluid transfe...
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WO/2021/067727A1 |
A hydraulic fracturing system includes a support structure (202) having a first area (228) at a first height (224) and a second area (230) at a second height (226). The system also includes an electric powered, multi-plunger pump (212) w...
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WO/2021/051394A1 |
A power drive system for a fracturing pump. The power drive system for a fracturing pump is driven by a turbine engine (1), and the turbine engine (1) is directly connected to an input end of a reduction gearbox (2) of the fracturing pum...
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WO/2021/051397A1 |
Disclosed is a five-cylinder plunger pump, comprising a power end assembly (1), a fluid end assembly (2) and a reduction gearbox assembly (3). One end of the power end assembly (1) is connected to the fluid end assembly (2), and the othe...
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WO/2021/051395A1 |
Provided is a turbine fracturing apparatus, comprising a transporting device (2), a turbine engine (5), a reduction gearbox (6), a transmission mechanism (7) and a fracturing pump (8), the output end of the turbine engine (5) is connecte...
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WO/2021/051396A1 |
Disclosed is a turbine fracturing semitrailer, comprising a semitrailer body (3), a turbine engine (7), a reduction gearbox (8), a transmission mechanism and a plunger pump (10), wherein the turbine engine (7), the reduction gearbox (8),...
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WO/2021/053077A1 |
The invention relates to an electromotively driven assembly (1) for a vehicle, having at least one electric drive unit (2), the drive shaft (3) of which is mounted by means of at least one rolling bearing (4), the outer ring (5) of which...
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WO/2021/053354A1 |
The present invention relates to hand held apparatus which is for use in the provision of a supply of a liquid, such as water, which is emitted from the apparatus at a pressure which is greater than that at which it enters the apparatus ...
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WO/2021/051398A1 |
Disclosed is a semitrailer-mounted turbine fracturing apparatus, comprising a transportation device (200), an exhaust system, a turbine engine (500) and a plunger pump (600). The exhaust system is connected to an exhaust port of the turb...
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WO/2021/048405A1 |
Pump unit (10) comprising an electrically driven hydraulic pump (4) for pressurising a hydraulic actuating system. The pump unit (10) comprises a hydraulic pump (4) in pump chamber (110) of a pump housing (11). The pump (4) is driven by ...
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WO/2021/035520A1 |
A plunger pump driven by a linear motor. The plunger pump is driven by the linear motor, and a law of motion of the plunger pump is controlled by controlling a law of motion of the linear motor.
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WO/2021/035521A1 |
A linear electric motor-driven plunger pump, comprising a linear electric motor (1) and a hydraulic end assembly. The hydraulic end assembly comprises a plunger (2), a valve box (3), an upper valve (4), and a lower valve (5). A plunger h...
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WO/2021/035522A1 |
A linear motor plunger pump, comprising a linear motor (1) and a fluid end assembly. The linear motor (1) is connected with the fluid end assembly; the linear motor (1) is a single-action or double-action linear motor; the fluid end asse...
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WO/2021/030048A1 |
A hydraulic drive system is employed to transfer energy generated by a diesel engine to a frac pump. The hydraulic drive system includes a gearbox comprising a plurality of gears being coupled to and driven to produce rotational movement...
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WO/2021/007878A1 |
A miniature electromagnetic water pump, comprising a pump body (1), a magnetic core plunger device mounted inside the pump body (1), an electromagnetic device sleeved on the outside of the pump body (1), and a throttle valve device conne...
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WO/2021/009285A1 |
The invention relates to a device and a method for open-open or closed-loop control of a movement of a die cushion of a die cushion press. The device has an control value encoder (11), a speed controller (12), a current controller (13) a...
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WO/2021/006865A1 |
The disclosure provides a formation fluid pumping method and pump, and a wellbore system that in one example includes wellbore surface equipment connected to a downhole tool including a formation fluid container having a fluid input port...
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WO/2021/004846A1 |
A pump device (1), in particular for pumping water, comprises at least one first cylinder (2A) and one second cylinder (2B), in which in each case one piston (3) with a piston rod (4) connected thereto is guided displaceably. Each of the...
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WO/2021/001212A1 |
The invention relates to an electric machine (1) comprising a stator (2); a rotor (3) which is rigidly arranged on a rotor shaft (5) in a rotatable manner about a rotational axis (4), said rotor shaft (5) being at least partly designed a...
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WO/2020/264452A1 |
Basement sump control systems are disclosed. A controller may monitor an operational parameter of a sump pump, for example, a sump water level. The controller may override a switch associated with the sump pump to maintain operation of t...
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