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WO/2019/201665A1 |
A piston hydraulic device comprises a cylinder block having a plurality of cylinder assemblies and is rotatable about a first rotation axis. Each cylinder assembly comprises a cylinder and a piston. A port plate having a first port and a...
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WO/2019/201574A1 |
The invention relates to a swash plate-type axial piston pump, in particular for hydraulic systems, comprising a cylinder drum (3) which is rotated about a rotational axis (7) in a pump housing (1) and in which pistons (9) are arranged i...
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WO/2019/198305A1 |
This fluid control device (10) is provided with a piezoelectric pump (21), a piezoelectric pump (22), a valve (30), and a container (40). The piezoelectric pump (21) and the piezoelectric pump (22) repeatedly operate and stop according t...
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WO/2019/193920A1 |
[Problem] To improve safety after a vehicle collision. [Solution] The present invention comprises: a compressor 11 that is mounted in a vehicle and that is driven by a built-in electric motor; a control circuit 55 that is provided to the...
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WO/2019/194942A1 |
Systems and method for operating a gas compressor (100) are disclosed herein. A compressor can have one or more dry gas seals (220, 222, 230, 232) surrounding the central axle of the compressor. The dry gas seals can each be pressurized ...
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WO/2019/187526A1 |
Provided is a control device that performs protection control of a compressor without malfunction. The control device activates protection control on a compressor that has a refrigerant circuit on the basis of a pressure value detected b...
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WO/2019/188762A1 |
Provided is a piston compressor configured so that loss in discharge pressure can be suppressed, a structure can be simplified, and the piston compressor can realize an air conditioning device capable of exhibiting excellent control perf...
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WO/2019/186861A1 |
The present invention achieves a power reduction effect while keeping a following property with respect to a pressure variation. Provided is a gas compressor having: a compressor main body for inhaling gas and exhaling compressed gas; a ...
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WO/2019/190376A1 |
A fluid system comprises a pump (7) for feeding fuel to at least one injector (3), a conduit (8) connecting the pump to the injector and an electronic pressure regulator (9) controlling the pump. A control unit (10) controls the pump to ...
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WO/2019/186288A1 |
The invention describes a valve unit (125) for pumps (100) comprising: a first chamber (130) communicating with an inlet conduit (135) and with a discharge conduit (215), a second chamber (140) communicating with the first chamber (130) ...
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WO/2019/180003A1 |
The present invention provides a method for analyzing, monitoring, optimizing and/or comparing energy used for producing a unit of mass or volume of compressed gas (Specific Energy Consumption) in relation to a common output flow in a mu...
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WO/2019/179997A1 |
The present invention describes a method for gauging energy used for producing a unit of mass or volume of compressed gas (Specific Energy Consumption) in relation to a common output flow in a multiple compressor system, said method comp...
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WO/2019/183383A1 |
Non-limiting exemplary embodiments of a pumping system and methods for operating the pumping system in a region of high pressure or a region of high flow are disclosed. The pumping system includes a piston disposed within a piston cylind...
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WO/2019/183407A1 |
Embodiments are disclosed for the control of downhole pumping systems that can perform a controlled draining operation of the downhole pumping system in the event of an interruption of a drive. Such embodiments include a zero power facto...
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WO/2019/176513A1 |
Provided is a cooling device capable of surely stopping the operation of a compressor when stopping the operation of the compressor is required. A cooling device (1) comprises: a motor (17) for driving a compressor (15) that constitutes ...
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WO/2019/170553A1 |
The invention relates to a drive device for a diaphragm fluid pump, comprising: a service pump, the service pump being connected to the diaphragm fluid pump by means of a pressure line in order to drive the diaphragm fluid pump, and the ...
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WO/2019/170770A1 |
The invention relates to an assembly (3), comprising a high-pressure pump (5) and a control device (7) arranged upstream of the high-pressure pump, the assembly (3) having a fuel channel (29), which is formed between an inflow side of th...
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WO/2019/172008A1 |
An air conditioner (100) serving as a refrigeration cycle device includes a protection device (200). If the current value of an input current of an electric motor of a compressor (103) exceeds a first prescribed value set to at least thr...
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WO/2019/170255A1 |
The invention relates to a control method for a high-pressure cleaning appliance (10) having a pump (16), an electric motor (14) and a control device (18). In order to easily adjust the speed of the electric motor (14) when a nozzle (30)...
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WO/2019/169366A1 |
A suction cover assembly for a frac pump includes a suction cover having an annular base flange defining a sealing interface proximate to the base flange. The suction cover is dimensioned to be accommodated within a bore well of a fluid ...
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WO/2019/166955A1 |
Vibration pump comprising: a core (2) at least partially made of ferromagnetic material; a solenoid (4) for actuating the core (2); a cylinder (6) comprising a work chamber (7) in which the core (2) can slide; an inlet duct (8) and an ou...
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WO/2019/169176A1 |
Fluid charging system (1) can provide a higher inlet pressure than the ambient pressure for pumps intended to operated and comprises one or more subsea fluid reservoirs (10); charge pump (30) configured to provide an output pressure high...
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WO/2019/166326A1 |
The invention relates to a system, comprising a refrigerant compressor and an electronic control device (13) for the refrigerant compressor (1). The refrigerant compressor (1) at least comprises a drive unit (16) and a compression mechan...
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WO/2019/162795A1 |
Device for monitoring the quality of the compressed air in a supply line and calibrating a measuring device for measuring a specific type (A, B, C) of impurity in the compressed air, whereby the device is provided with: - a measuring lin...
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WO/2019/162872A1 |
Method for actuating a compressor system (1) in order to set a measured operating pressure (pw), which serves as a measure for the operating pressure (p) that the compressor system (1) supplies to a user network (14) at a flow rate (Q) d...
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WO/2019/158320A1 |
The present disclosure relates to a pump system (1) with a first (3) of at least one pump unit (3, 5) for pumping a fluid (11), wherein the first pump unit (3) comprises a pump, an electrical drive motor and a motor control, with a pump ...
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WO/2019/154494A1 |
The invention relates to a method for controlling a high-pressure cleaning appliance (10) comprising an electric motor (16), a high-pressure pump (20) driven by the electric motor (16), and a control device (30). The aim of the invention...
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WO/2019/154092A1 |
A stroke estimation method for a linear compressor. The linear compressor comprises a linear motor. The linear motor comprises a coil used for driving a rotor (3) to move linearly. The method comprises the following steps: obtaining coun...
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WO/2019/155272A1 |
Unloader for a compressor, said unloader (1) comprising a housing (2) with an inlet (3) and an outlet (4), and whereby the unloader (1) is further provided with a piston rod (5) which is arranged moveably in a reciprocating manner in the...
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WO/2019/155737A1 |
A control device comprising: a prediction unit for predicting a startup-possible time, which is the time until a compressor is capable of operating, on the basis of an outside temperature and a degree of dilution of refrigerant oil in th...
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WO/2019/151062A1 |
Provided is a liquid chromatograph in which a solvent can be quickly replaced in a liquid delivery pump. The liquid chromatograph is provided with a liquid delivery pump 1 that takes in and discharges a solvent, and the liquid delivery p...
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WO/2019/152140A1 |
A negative pressure wound therapy device includes a piezoelectric pump, a state detector configured to detect a state of the pump, and a control circuit configured to transmit a first control signal for a first period having a first RMS ...
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WO/2019/152359A1 |
An integrated, portable, battery-powered, variable-pressure electric liquid pump and power emergency station comprising a chassis; one or more wheels supporting the chassis; an electrically powered, variable-pressure liquid pump carried ...
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WO/2019/146965A1 |
The present invention relates to a control device for controlling the operation of a compressor, an electronic control valve used for the same, and a compressor comprising the same. Provided is a control device of a compressor, comprisin...
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WO/2019/147603A1 |
Changing a cumulative pumping rate of multiple pump units by adjusting individual pumping rates of the pump units, wherein each temporary dip or spike of an individual pumping rate of one of the pump units is automatically offset by a pr...
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WO/2019/142840A1 |
Provided is an air pressure system that controls an air compressor in real time for a plurality of terminals in accordance with the actual manner in which compressed air is used. Furthermore, when there is a sudden change in pressure los...
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WO/2019/141020A1 |
A vacuum pump automatic power-off device and a vacuum mixer; the vacuum pump automatic power-off device comprises: a vacuumizing device (1) and a metal probe (23); the vacuumizing device (1) comprises a shell (2), a vacuum valve seat (3)...
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WO/2019/141489A1 |
There is disclosed a peristaltic rotor unit (100) comprising a housing (102); a track (104) within the housing defining a pathway for a tube (2); a rotor (106) within the housing configured to compress a tube received along the pathway a...
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WO/2019/138502A1 |
This scroll compressor (S) is provided with: a compression mechanism portion (3) comprising a plurality of compression chambers (51) formed by an orbiting scroll (11) and a fixed scroll (12); a bypass port (41) providing communication be...
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WO/2019/136554A1 |
A monitoring and control apparatus communicates with an electrical drive of a subsurface artificial lift system to identify, predict and mitigate against failure of the artificial lift system. A monitoring and control apparatus: reads to...
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WO/2019/139132A1 |
A variable capacity compressor in which: when the pressure of a passage that is upstream of a switching valve 400 that is provided downstream of a control valve that adjusts the aperture of a supply passage that supplies refrigerant that...
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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...
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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 (...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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