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WO/2020/059293A1 |
A fluid machine system comprises: a fluid machine that pumps a fluid, a pipe connected to the fluid machine, a terminal load connected to the pipe, and a terminal pressure sensor that detects a terminal pressure of the pipe, wherein the ...
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WO/2020/053577A1 |
A prime mover and a plurality of hydraulic actuators, a hydraulic machine having a rotatable shaft in driven engagement with the prime mover and comprising a plurality of working chambers, a hydraulic circuit extending between a group of...
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WO/2020/054480A1 |
This constant-pressure liquid supply device is provided with: a pump unit (4) including a volumetric pump body (41) and an electric motor (42); an inverter (72); and a controller (71). The controller includes a table or a relational expr...
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WO/2020/048947A1 |
A method of detecting leakage in a pump (10) that has at least one displacement body (12) for displacing a medium to be pumped into a pressure line (20), characterized by the steps of: - closing-off the pressure line (20), - operating th...
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WO/2020/044231A1 |
Compressor or pump, comprising at least one compressor or pump element (2) for pressurised supply of a fluid to a network (3) of consumers (4) of such pressurised fluid; a motor (5) coupled with the compressor or pump element (2), wherei...
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WO/2020/043274A1 |
A system for generating air pressure in a hybrid vehicle, comprising an engine-driven air compressor (C1) configured to be selectively operated by an ICE engine, an electrically- driven air compressor (C2) configured to be operated by an...
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WO/2020/044100A1 |
A pump (10) includes a head (11) having an opening (15) and an injection port (14). The head is for holding content (21) to be forced through the injection port. A bladder (22) is within the head. The bladder is between the content and t...
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WO/2020/041577A1 |
Disclosed are new configurations of a rubidium elution system that offer several advantages. The rubidium elution systems of the present disclosure comprise an assembly including a 82Sr/82Rb generator, an activity detector, a waste conta...
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WO/2020/040684A1 |
The invention relates to a demolition robot having at least a hydraulically effective function, which demolition robot (1) comprises; an incoming supply line (P) for hydraulic flow, an outgoing return line (T) for hydraulic flow and an o...
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WO/2020/039467A1 |
In the device for controlling a pump system for a descaling apparatus pertaining to the present invention, a parameter value for estimating a degree of wear is calculated on the basis of an operating history for each of a plurality of pu...
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WO/2020/039404A1 |
A method of controlling a high-pressure system having an engine, and a hydraulic pump having a swashplate includes inputting a maximum discharge pressure, a maximum allowable equipment pressure, a pressure relief valve (PRV) setting, a f...
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WO/2020/039587A1 |
A power conversion device (100) is provided with: a power conversion unit (111) that outputs driving power to a driving motor (11) of a pump (20) for pressure-feeding a fluid; a speed control unit (112) that causes the power conversion u...
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WO/2020/035391A1 |
According to one embodiment of the invention the digital pump axis control system is a circuit being at least partially open. The circuit comprises: an electric engine, powering a first and a second hydraulic machine, wherein the first a...
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WO/2020/037283A1 |
A reciprocating pump assembly includes a fluid end section having a pressure chamber and a plunger bore that fluidly communicates with the pressure chamber. The reciprocating pump assembly includes a plunger configured to be held within ...
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WO/2020/034917A1 |
A pneumatic water pump drainage assembly (100) and a pneumatic water pump control method, the pneumatic water pump drainage assembly (100) comprising a controller (110), a plurality of pump bodies (131, 133) and a floating ball switch (1...
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WO/2020/033682A1 |
Apparatus, including a pump system, features a controller having a signal processor or processing module configured to: receive signaling containing information about a relationship between frequencies of pump vibration resonances detect...
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WO/2020/030350A1 |
A method for monitoring the functioning of a compressor (2) which can be shifted into a delivery mode, which compressor (2) when in the delivery mode delivers compressed air into at least one main supply line (26, 28) via a drier line (1...
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WO/2020/026699A1 |
[Problem] To simplify the structure of a second control valve for pressure relief of a crank chamber in a variable capacity compressor. [Solution] A second control valve 400 adjusts the opening degree of a discharge passage 146 according...
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WO/2020/028531A1 |
A reciprocating piston pump may include a fluid handling portion comprising a fluid inlet, a fluid outlet, and a pump chamber; a drive assembly portion comprising a piston drive assembly, a reciprocating piston, a drive assembly housing,...
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WO/2020/024836A1 |
An electric drive compressor system (1) comprising: a reciprocating compressor (2) having temperature and pressure sensors (83, 84) for sensing a pressure and temperature of gas prior to compression by the compressor (1) and for sensing ...
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WO/2020/026688A1 |
A compressor 1 according to the present invention comprises: a compressor body 3 that has a motor 2 and that compresses air; an aftercooler 5 for cooling compressed air supplied from the compressor body 3; a dryer 6 for dehumidifying the...
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WO/2020/023756A1 |
Disclosed embodiments include hydraulic systems (220; 238; 305) which provide power to lift, tilt and auxiliary (e.g., implement) functions, including high-flow auxiliary functions, with increased efficiency. Disclosed embodiments incorp...
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WO/2020/019642A1 |
Disclosed are a compressor control method, control apparatus and control system. The method comprises: receiving a cylinder switching instruction, and detecting running parameters of a compressor; determining whether a cylinder switching...
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WO/2020/023836A1 |
A well management system provides Internet-enabled monitoring, configuration, and control of a well system that includes a pump (120) and a pressure tank (130). A controller (110) is operatively coupled to the pump. The controller contro...
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WO/2020/018067A1 |
A valve unloader assembly (10) for a reciprocating compressor and method for manufacturing the valve unloader assembly are provided. A branched support structure (11) may be disposed about a longitudinal axis of the valve unloader assemb...
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WO/2020/018068A1 |
A system includes a first plurality of pumps connected to draw from a clean fluid supply junction. A second plurality of pumps is operatively connected to a dirty fluid supply. A first valve is connected between the clean fluid supply ju...
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WO/2020/013154A1 |
A capacity control valve is provided which has excellent operation efficiency while having fluid discharge function at start-up. This capacity control valve V is provided with: a valve housing 10 in which a discharge port 10, through whi...
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WO/2020/013156A1 |
A capacity control valve is provided which has excellent operation efficiency while having fluid discharge function at start-up. This capacity control valve V is provided with: a valve housing 10 in which a discharge port 12, through whi...
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WO/2020/013155A1 |
A capacity control valve is provided which has excellent operation efficiency while having fluid discharge function at start-up. This capacity control valve V is provided with: a valve housing 10 in which a discharge port 12, through whi...
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WO/2020/014679A1 |
A system attachable to a refrigeration circuit includes a recovery pump attachable to the refrigeration circuit to remove refrigerant. The recovery pump includes a pump, an electric motor, a battery pack, and a recovery pump controller f...
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WO/2020/011451A1 |
A jet pump unit (100) for controlling a gaseous medium, in particular hydrogen, having a pump housing (1) in which a bore (27) is formed. A nozzle element (97) is arranged in said bore (27), wherein the nozzle element (97) comprises a no...
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WO/2020/013816A1 |
A load sense pump can be used as a backup for a pressure-compensated pump in a wellbore operation. A pumping system can include a first pump, a second pump, a check valve, and a directional control valve. The first pump, which can be a l...
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WO/2020/007309A1 |
Disclosed are a monitoring, prevention and management method for preventing a drill pump (1) from pump suffocation and misoperation, and a pump pressure protection system therefor. The monitoring method may comprise: mounting a vertical ...
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WO/2020/004088A1 |
This perfusion device (1) has: a reservoir (30) in which a perfusion solution is retained; an influx pipe (41) through which the perfusion solution is allowed to flow from the reservoir (30) into an internal organ (9); a discharge pipe (...
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WO/2020/002612A1 |
An electric motor pump system includes a variable displacement pump (100), an electric motor connected to drive the variable displacement pump, a first control piston (120) configured to limit an output pressure characteristic of the pum...
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WO/2019/244659A1 |
A refrigeration device (10) is fitted with a bearing monitoring unit (23). The bearing monitoring unit (23) is configured to perform, if an anomaly condition is satisfied, an anomalous-event operation corresponding to a lubrication defec...
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WO/2019/238559A1 |
A hydraulic drive system (100) for a construction material pump (100) comprising: - a hydraulic circuit (101) for hydraulic fluid (HF); - a feed pump (2), which is designed to feed hydraulic fluid (HF) into the hydraulic circuit (101); -...
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WO/2019/239105A1 |
The invention relates to reciprocating pump (10) comprising actuating and discharge cylinders (12, 20); an actuating piston (14) mounted for reciprocating movement within the actuating cylinder (12); and a discharge piston (24) coupled t...
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WO/2019/235940A1 |
The invention broadly relates to a pneumatic pumping system to pump at least one fluid from one location to another and, in some forms, to mix fluids together. The system comprises a programmable electronic controller, a data source, a p...
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WO/2019/231203A1 |
The present invention relates to an oil detecting device for a compressor and a compressor, wherein a casing in which oil is received has a plurality of capillary tubes in an inner space of the casing, and a property of oil is detected o...
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WO/2019/226748A1 |
A surge suppressor includes a boost mechanism configured to balance pressures between a working fluid and a process fluid. The boost mechanism includes a boost member that is acted on by a charge pressure of the working fluid. A shaft ex...
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WO/2019/225628A1 |
Provided is a capacity control valve having good responsiveness to differential pressure. The capacity control valve V is provided with a valve housing 10, a main valve 50 which is opened and closed by the drive force of a solenoid 80, a...
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WO/2019/224236A1 |
The invention relates to a system (1) for detecting and remedying a partial or complete viscous material blockage (DSV) in a viscous material delivery line (10), said system (1) having: - a blockage detection device (20) which is designe...
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WO/2019/224239A1 |
The invention relates to a system (1) for preventing a viscous material blockage in a viscous material delivery line (10) when pumping viscous material (DS) in the viscous material delivery line (10), said system (1) having: - an actuata...
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WO/2019/206456A1 |
To provide the high accuracy calibration of a pump control table when the capacity variable control of a hydraulic pump is configured to be conducted based on a pump control table representing the relationship between the pump capacity a...
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WO/2019/206757A1 |
A piston hydraulic device is disclosed. The device comprises a cylinder block having a plurality of cylinder assemblies. The cylinder block being rotatable about a first rotation axis wherein each cylinder assembly comprises a cylinder a...
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WO/2019/208606A1 |
[Problem] To accurately control the ejection of chemicals and increase the safety of the ejection of the chemicals in an agricultural machine for spraying the chemicals. [Solution] This system, which is for controlling the ejection of ch...
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WO/2019/210257A1 |
A well service pump system supplies high pressure working fluid to a well. The pump system has a linear design which incorporates an electric motor (212), a variable frequency drive (VFD) (216), a pump drive (220), closed loop variable f...
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WO/2019/205757A1 |
A linear compressor sine wave control method, comprising a dynamic control mode, and comprising: during a mover of a linear compressor reciprocating between endpoint positions BDC and TDC, in a sine wave driving cycle, when the mover is ...
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WO/2019/210260A1 |
A well service pump system (10) supplies high pressure working fluid to a well. The pump system (10) includes: three or more working fluid pump assemblies (34), each comprising a working fluid end cylinder (46) having a plunger rod (50) ...
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