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Patent Searching and Data


Matches 1 - 50 out of 27,586

Document Document Title
WO/2019/135900A1
A negative pressure wound therapy device includes at least one piezoelectric pump and a control circuit. The control circuit is configured to generate a first control signal to control operation of the at least one piezoelectric pump, th...  
WO/2019/127983A1
A water storage system control device and apparatus. The control device comprises a single-chip microcomputer (1), a ZigBee coordinator (2), a first ZigBee wireless transceiver (131), a first frequency converter (3), a water pump motor (...  
WO/2019/132953A1
A pump monitoring system for use in wellbore operations includes a strain gauge that can be positioned on a fluid end of a pump and at least one pressure transducer to measure relative pressure. A computing device can be connected to the...  
WO/2019/133306A1
The current subject matter provides a tool and user interface for estimating a velocity at which a plunger of a rod lift pump system will impact a fluid within a well when the rod lift pump system is altered to operate under various cond...  
WO/2019/130625A1
A liquid feeding device (1) is provided with: a plunger pump (2) which performs an operation of sucking a liquid into a pump chamber (4) and an operation of discharging the liquid from the pump chamber (4), and in which the pressure in t...  
WO/2019/123969A1
A compressor 1 is provided with: a compressor body 3 having a function of compressing air; an after-cooler 5 for cooling compressed air supplied from the compressor body 3; a dryer 6 for dehumidifying compressed air flowing out from the ...  
WO/2019/123545A1
This air conditioner is provided with: a drive circuit that controls the operation of a motor (6); a thermistor (4) that detects the temperature of the outer enclosure of the motor (6), and outputs a detection value based on the temperat...  
WO/2019/126167A1
The present disclosure relates to a pneumatically driven fluid pump apparatus having an outer pump housing for collecting liquid to be pumped, and a valve assembly in communication with liquid admitted through an inlet end of the outer p...  
WO/2019/119086A1
The present invention describes a system for supplying cold water in vertical buildings using a high-performance, low-cost plug & play kit. The smart pressurized pumping system draws water from the lower tank (b) and distributes it direc...  
WO/2019/053513A9
A pumpjack monitor includes a processor and memory, a communicator for communicating with other monitors and a server, a sensor module having at least a strain gauge and accelerometers for determining vibration and position of the monito...  
WO/2019/126742A1
A refueling method for supplying fuel to at least one piece of fracturing equipment by installing a main fuel source at a fractionation operation, connecting the main fuel source to fracturing equipment to provide downhole fluids to the ...  
WO/2019/116471A1
A power conversion device (500) converts direct current power into alternating current power, and applies the alternating current power to an electric motor mounted in a compressor (1). The power conversion device is provided with: an in...  
WO/2019/110455A1
A pump includes: a stator (4); a rotor (6) slidably and rotatably mounted at least partially in the stator, the rotor comprising a first axial extension (24) having a first diameter (Dl) and a second axial extension (26) having a second ...  
WO/2019/112554A1
Certain conditions or triggering events require preventing or throttling the discharge of a servicing fluid from a pump to a wellhead or a borehole. Powering down may not be desirable or may require a duration that allows the condition o...  
WO/2019/113036A1
An angle adjustment mechanism for a pump and a motor includes a base, two eccentric bushings and a fixed link. The base has a hinge disposed between a motor flange and a pump flange and a pair of spaced apertures disposed opposite the hi...  
WO/2019/110282A1
The invention relates to a fuel delivery system for cryogenic fuels, comprising a piston pump (1) for delivering the cryogenic fuel at high pressure, said piston pump (1) comprising a reciprocating pump piston (2) that delimits a compres...  
WO/2019/113147A1
A hydraulic fracturing system for fracturing a subterranean formation is described according to various embodiments. In an embodiment, the system can include a multi-plunger hydraulic fracturing pump (300) fluidly connected to a well ass...  
WO/2019/108177A1
To compensate for an event, equipment may require a power down sequence of a motor connected to a pump to prevent the pumping of servicing fluid at a high pressure, high pressure fluid may be required to be diverted to a reservoir or oth...  
WO/2019/108819A1
A system for a piston-driven fluid pump, including a plurality of electro-mechanical actuators, and a control system electrically connected to the actuators. Each actuator is configured to operatively couple with a piston of the fluid pu...  
WO/2019/106831A1
This working machine is provided with: first and second hydraulic motors; first and second hydraulic pumps provided to supply hydraulic oil to the respective corresponding first and second hydraulic motors; first and second swash plate a...  
WO/2019/106548A1
A system for noise and vibration management of a smoke evacuation system includes a pump that compresses air and produces a pressure differential within an airflow path. The pump may be a sealed, positive displacement pump. The system in...  
WO/2019/105101A1
An electromagnetic reciprocating compressor, comprising a piston permanent magnet assembly slider (1), a piston cylinder (14), an inlet valve (18), a vent valve (19), an air chamber (20), an air inlet (21), an air outlet (22), an electro...  
WO/2019/106546A1
A smoke evacuation device includes one or more cooling mechanisms and an exhaust mechanism to reduce velocity and noise of filtered air exiting the smoke evacuation system. The cooling mechanism includes ventilation openings and/or a rot...  
WO/2019/102812A1
Provided is a compressed gas production device with which it is possible to reduce maintenance cost in correspondence to the total operation time of a plurality of gas compressors. A control device 4 includes a total operation time estim...  
WO/2019/102631A1
This air compressor is provided with: a compressor main body that compresses air; a storage tank that stores a gas compressed by the compressor main body; a motor that drives the compressor main body by rotating a rotating shaft; and a c...  
WO/2019/096982A1
A cartridge hand pump is disclosed. The cartridge hand pump comprises a housing; a lever extending from the housing; a cylinder provided in the housing wherein the cylinder is connected to a supply passage for receiving hydraulic fluid a...  
WO/2019/099783A1
Systems and methods for an air compressor control system includes a user interface configured to receive a command from an operator, a sensor configured to measure one or more characteristics of the system, an electric inlet valve integr...  
WO/2019/094922A1
Power systems and methods of controlling an engine driven air compressor include an air compressor driven by an engine via a clutch. A first pressure sensor configured to sense a pressure level at an outlet of the air compressor. An inle...  
WO/2019/092122A1
This invention discloses a method for determining a current wear (w) of a hydrostatic pump (11), particularly of a radial piston pump, with a variable-speed drive (12), where the pump (11) is connected to a fluid passage (31, 32), in whi...  
WO/2019/093007A1
The present invention provides an air compressor in which a load torque upon starting is decreased. The compressor (1) is provided with: a compressor body (2); an electric motor (6) which drives the body (2); and a current supply circuit...  
WO/2019/090388A1
A system (3) for pumping fluid, including a sequence of two or more positive- displacement sub-systems (15A, 17A; 15B, 17B; 15C, 17C; 15D, 17D) each having a respective one-way inlet (21A, 21B, 21C, 21D). A respective one-way flow path (...  
WO/2019/085002A1
An intelligent water pump controller based on the Internet of things is provided with a microprocessor (1), and a water pump control circuit (2), a relay control circuit (3) and a keying control circuit (4) that are connected to the micr...  
WO/2019/086671A1
The invention relates to a system for pumping a compressible liquid, comprising at least two pumps, a first pump (10) and a second pump (20), of which the respective pump outlet lines (12, 22) are led together into a connecting piece (36...  
WO/2019/084620A1
A pump including one or more pumping chambers, one or more drive mechanisms for driving the one or more pumping chambers and a logic arrangement. The first pumping chamber of the one or more pumping chambers has a first inlet check valve...  
WO/2019/085155A1
A high-precision peristaltic pump flow rate control system, comprising a motor, a peristaltic pump, a rotational speed feedback assembly, a flow rate feedback assembly, and a controller. The motor is correspondingly connected to the peri...  
WO/2019/081113A1
The invention refers to a governor device (1) for controlling a compressor in a pressurized air system, said governor device (1) comprising: - a supply port (21) for receiving a supply pressure (p21), - a control port (20) for delivering...  
WO/2019/074251A1
The present specification relates to an apparatus for controlling a linear compressor and a method for controlling same, more specifically to an apparatus and a method for controlling a linear compressor in which the linear compressor is...  
WO/2019/070544A1
A universal monitoring system applicable to a variety of hydraulic fracturing equipment includes an accelerometer mounted on a housing of a positive displacement pump and configured to sense a vibration associated with the positive displ...  
WO/2019/071086A1
Embodiments include a method for monitoring a fracturing operation that includes positioning a pump (50) at a well site (12) where fracturing operations are being conducted. The method also includes arranging one or more sensors (34, 36)...  
WO/2019/068762A1
The present invention relates to a hydraulic system (1), wherein the system comprises a hydraulic device (10), a hydraulic pump (20) in fluid connection with the pressure chamber of the hydraulic device, an electric motor (30) arranged t...  
WO/2019/067816A1
Embodiments of apparatus for controlling the movement of matter, including but not limited to one-way fluid valves, are disclosed. The apparatus may include a transition nozzle, a funnel nozzle, and a reverse flow blocker arranged in ser...  
WO/2019/066127A1
The present invention relates to a method of controlling an air dehumidifier using a phase change material, and more particularly, to a method of controlling an air dehumidifier using a phase change material, wherein the phase change mat...  
WO/2019/066286A1
The present invention relates to a device for supplying lubricating oil having a structure in which a valve receives centrifugal force and thus receives force in the opening direction of a bypass hole, and a spring presses the valve in t...  
WO/2019/060227A1
A method includes receiving field measurement data of a plurality of well-pumps disposed respectively in a plurality of wells. The field measurement data are representative of speed data and run-time data, of the plurality of well-pumps....  
WO/2019/057276A1
The invention relates to a high-pressure cleaning device (10; 50) comprising an electric motor (12; 52) and a pump (14; 54) driven by the electric motor (12; 52), said pump having a pump inlet (16) for supplying cleaning liquid to be pre...  
WO/2019/060871A1
A high pressure threshold detection circuit (100) is provided. The high pressure threshold detection circuit includes a pressure transducer (110) for measuring a pressure of a medium at an outlet (104) of a compressor (102). The high pre...  
WO/2019/058221A1
A reciprocating compressor (1 ) comprises a cylinder (2), a piston (3), an intake duct (4), defining an intake space (4A), a discharge duct (6) defining a discharge space (6A), an intake valve (8) disposed in the intake duct (4), a disch...  
WO/2019/053513A1
A pumpjack monitor includes a processor and memory, a communicator for communicating with other monitors and a server, a sensor module having at least a strain gauge and accelerometers for determining vibration and position of the monito...  
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/2019/049987A1
The present invention relates to a compressed gas supply device capable of supplying a compressed gas discharged from a plurality of compressors. The device is provided with a plurality of compressors disposed in parallel, a load factor ...  

Matches 1 - 50 out of 27,586