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WO/2021/231919A1 |
Disclosed herein are hydraulic adapters capable of converting the low torque energy provided by conventional cordless drills to applications of high pressure hydraulic operations. Hydraulic adapters allow accessories that have convention...
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WO/2021/231276A1 |
Universal control circuitry (500) for an electro-hydraulic valve actuator system (105, 105', 105'') includes logic gate circuitry to control one or more of a closing solenoid valve (6), an opening solenoid valve (5), an emergency shutdow...
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WO/2021/228431A1 |
To perform a work with the same operability under a dead weight of a front work equipment (4) in any of a float work and a normal work, when a bucket (7) descends in the air, and after contacting the ground, to perform a work with the op...
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WO/2021/221768A1 |
Methods and apparatus for quantifying pneumatic volume usage via valve controllers are disclosed. An example apparatus includes a valve controller operatively couplable to a pneumatic actuator, the pneumatic actuator being operatively co...
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WO/2021/213356A1 |
An electronically controlled hydraulic system (200) and an agricultural machine having same. The electronically controlled hydraulic system (200) comprises a hydraulic assembly (10), a power output device (40), a fluid (50) that can be t...
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WO/2021/212714A1 |
Disclosed are a pressure coupling hydraulic hybrid power driving circuit and a control method therefor, and an excavator. The pressure coupling hydraulic hybrid power driving circuit comprises a three-way pressure matcher, wherein a firs...
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WO/2021/213400A1 |
An electric control hydraulic system (200) and a hydraulic drive method; the electric control hydraulic system (200) comprises a hydraulic assembly (10), a power output device (40), oil (50) capable of being transmitted between the hydra...
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WO/2021/215772A1 |
The present invention relates to a module that is for diagnosing the integrity of an actuator and has an oil cleaning function, wherein not only can the module be coupled at a valve position of the actuator to perform an oil cleaning fun...
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WO/2021/213399A1 |
Disclosed is an electronically controlled hydraulic system, comprising a hydraulic assembly (10), a power output device (40), oil fluid (50) capable of being transmitted between the hydraulic assembly and the power output device, a hydra...
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WO/2021/198174A1 |
The present invention relates to devices and methods which prevent an infiltration of liquid (F) into a pressure-guiding part (16) of a pneumatic device (1). A pneumatic device (1) according to the invention has at least one ventilation ...
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WO/2021/191494A1 |
A load sensing control system for controlling a hydraulic system comprises at least one pressure sensor (101-106) configured to measure pressure of at least one hydraulic cylinder (111-113) of the hydraulic system, a torque controlled el...
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WO/2021/193157A1 |
Provided is a work machine capable of maintaining the control accuracy of an actuator irrespective of the temperature fluctuation of hydraulic oil passed through a flowrate control device that controls a supply flowrate to the actuator. ...
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WO/2021/193156A1 |
In the present invention, a wheel loader (1) comprises: a direction control valve (32); a pilot pump (40) which supplies pilot pressure oil to the directional control valve (32); a first electromagnetic proportional control valve (41) an...
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WO/2021/186808A1 |
An EHA system (10) for lifting/lowering landing gear is provided with: a hydraulic circuit (101) comprising a hydraulic actuator (hydraulic cylinder 2) for lifting/lowering landing gear of an aircraft, at least one electric hydraulic pum...
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WO/2021/187132A1 |
This control device for controlling movement of a valve body of a valve device, has: a flow rate acquisition unit that acquires the flow rate of the valve device; a flow state determination unit that determines whether or not the flow of...
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WO/2021/186998A1 |
A control device controls the motion of a valve body of a valve device provided in a hydraulic system, wherein: the control device has a stroke command calculation unit that calculates a stroke command for the valve body on the basis of ...
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WO/2021/188221A1 |
An electrostatic zipping actuator (132, 232) includes a primary electrode (120, 220), a secondary electrode (130, 230) overlying the primary electrode, a dielectric layer (120; 220, 270) located between and abutting at least a portion of...
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WO/2021/186069A1 |
The present application relates to a device for influencing, in particular reducing, vibrations in a fluid system, in particular a hydraulic system. The proposed device comprises a separation means (11) which has a side for delimiting a ...
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WO/2021/188808A1 |
An intrinsically safe (IS) multi-drop communication hub operable in a hazardous environment, including a power contact; a controller and a first signal input contact; a multiplexer communicatively connected to the controller; and a commu...
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WO/2021/188546A1 |
The subject matter of this specification can be embodied in, among other things, an electrohydraulic positioning control system that includes a shuttle valve configured to direct fluid flow between a selectable one of a first fluid port ...
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WO/2021/188531A1 |
The subject matter of this specification can be embodied in, among other things, a method that includes actuating a closure member at a predetermined first velocity a predetermined first number of cycles between a first configuration and...
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WO/2021/182964A1 |
The invention relates to an underwater-based, depth-compensable accumulator system which is adapted to produce hydraulic power for underwater operations, and which consists of one or more gas-free accumulator units. An accumulator unit a...
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WO/2021/183924A1 |
A device that performs wireless actuation by inductive heating. The device includes a bladder configured to expand or retract, so as to change the bladder's interior area. The device also includes a container, fluidly coupled to the blad...
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WO/2021/173940A1 |
An electric work vehicle includes a hydraulic actuator and a pump configured to supply hydraulic fluid to the hydraulic actuator, with the pump being operable within an operating speed range extending between a minimum operating speed va...
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WO/2021/173079A1 |
A gas-reservoir electrochemical pressure generator and a dual-gas-reservoir electrochemical pressure generator are provided. The electrochemical pressure generator includes an electrical power source, an electrochemical pressure generato...
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WO/2021/169175A1 |
An oilway structure for achieving precise control of a double-acting cylinder, comprising a double-acting cylinder (1), an oil inlet pipeline (2), an oil outlet pipeline (3), a first accumulator (71), and a second accumulator (72). One e...
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WO/2021/163812A1 |
A thermal actuator includes a piston slidingly within a cylinder. The piston cooperates with the cylinder to define a cavity. The piston also includes a rod extending away from the cavity. A magnetic field generator selectively imparts a...
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WO/2021/161229A1 |
A microfluidic sealing valve 1 comprises a primary channel 2, a valve channel 4, and a geometry that permits liquid in the primary channel 2 to flow into the valve channel 4 through an inlet 5. Liquid in the primary channel 2 is inhibite...
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WO/2021/162679A1 |
A fieldbus solenoid valve system has a solenoid operated control valve mounted and operated by a solenoid pilot. A direct current power source is connected to a coil of the solenoid pilot and a driver for actuating the coil. A resistive ...
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WO/2021/156047A1 |
The invention relates to a compressed-air module system for a utility vehicle, comprising a plurality of compressed-air components (46-58) and a mounting device (26) which can be attached to a vehicle frame (10) of the utility vehicle. T...
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WO/2021/118607A1 |
A hydraulic power unit ("HPU") with a submerged motor for moving hydraulic fluid between a first chamber and a second chamber of a hydraulic device is provided. The HPU may comprise a tank for storing hydraulic fluid, wherein the tank ho...
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WO/2021/115598A1 |
A hydraulic system (100) for a working machine, the system comprising: an electric machine (102) connected to a first hydraulic machine (104) and to a second hydraulic machine (108) via a common axle (150), an output side (110) of the se...
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WO/2021/109649A1 |
A liquid supply system for an emulsion pump station comprises a bottom support component (1). An accumulator (2), a liquid supply component (3), and a liquid collection component (4) are disposed on the bottom support component (10). A f...
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WO/2021/102397A1 |
The present disclosure provides a fluidic device including a first inlet, an outlet, and a channel positioned between the first inlet and the outlet. The channel is in fluid communication with the first inlet and the outlet. The fluidic ...
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WO/2021/093300A1 |
Disclosed are an energy-saving control system and control method for an excavator boom. Said system comprises a boom hydraulic system and a boom potential energy recycling device; the boom potential energy recycling device comprises a po...
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WO/2021/093301A1 |
An energy recycling device, comprising a three-position seven-way reversing valve (7), a dual-oil source coupler (8), and an energy accumulator (6). The three-position seven-way reversing valve (7) comprises a middle position, an energy ...
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WO/2021/085016A1 |
A regeneration device comprising a regeneration valve for controlling the flow rate of a working liquid discharged from one port of a cylinder, a check valve for allowing a flow for regenerating the working liquid from the regeneration v...
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WO/2021/056659A1 |
An open hydraulic pump-controlled motor-driven rotary forging press machine, mainly comprising: pinions (1), racks (2), stop wheels (3), balance cylinders (4), a sliding block (5), guide rails (6), a main frame (7), and an electrohydraul...
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WO/2021/056107A1 |
A method for controlling an attachment provided to a boom of a vehicle, the method including: sensing a ground force on the attachment; determining if the ground force is outside a target deadband, wherein the target deadband is based on...
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WO/2021/049317A1 |
Provided is a work machine (100) capable of effectively discharging air from within the hydraulic circuit of a winch unit (10) capable of braking a winch drum (1) by receiving hydraulic oil. The work machine (100) comprises: a winch unit...
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WO/2021/046985A1 |
An electro-hydraulic servo actuator (100) for implementing long-path and high-frequency loading, and a control method. The actuator (100) comprises: a long cylinder and piston (1), a short cylinder and piston (2), a fixed end rod (3), lo...
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WO/2021/044526A1 |
Provided are a multiple valve device that enables the discovery of contaminants mixed into a working fluid, and a cargo handling device equipped with this multiple valve device. The multiple valve device (10) is provided with: a priority...
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WO/2021/031639A1 |
A winch potential energy real-time recycling system and a control method therefor. Said system comprises a main pump (2), an auxiliary pump (18), a main reversing valve (4), a potential energy recovery reversing valve (13) and a balance ...
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WO/2021/025170A1 |
Provided is an excavator that suitably uses hydraulic fluid that flows out from a boom cylinder during excavation.　The excavator comprises a boom, an arm, a boom cylinder that drives the boom, and an arm cylinder that drives the arm an...
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WO/2021/012434A1 |
Disclosed is a compound hydraulic double-cylinder synchronization control method. Firstly, a third-order mathematical reference model of a hydraulic double-cylinder system is established in an off-line state, and a closed-loop system is ...
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WO/2021/003761A1 |
A hydraulic tension system of a direct-pulling cold/warm rolling tester, relating to the technical field of hydraulic control. The hydraulic tension system comprises a constant-pressure oil source system (45), a left tension control unit...
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WO/2020/260124A1 |
The invention relates to a hydraulic control block for controlling a pressure medium supply of a hydraulic cylinder of a hydraulic spindle. The invention also relates to a hydraulic spindle comprising said control block.
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WO/2020/257925A1 |
Air microfluidics and minifluidics enabled active compression apparel enhances mobility and quality of life for individuals by minimizing risks of injuries, enhancing rehabilitation, and maximizing comfort. Balloon actuators, integrated ...
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WO/2020/260146A1 |
Disclosed is a hydraulic control block for controlling a pressure medium supply of a hydro-cylinder of an electro- or servo-hydraulic axle, having interior hydraulic interfaces via which piston surfaces of the hydro-cylinder can be fluid...
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WO/2020/260128A1 |
The invention relates to a hydraulic control block for a servo-hydraulic axle, in particular a linear axle, at least comprising hydraulic interfaces for hydraulically connecting a hydraulic actuator of the axle and comprising a first cav...
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