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WO/2023/038390A1 |
The present invention relates to a jump exercise device using pneumatic pressure, and more specifically, to a jump exercise device using pneumatic pressure that allows adjusting the position of a piston in a pneumatic cylinder to adjust ...
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WO/2023/036683A1 |
The invention relates to a hydraulic drive (1) for a mobile working machine, preferably an excavator with a swingable hydraulic machine (4) which is hydraulically connected to first load cylinders (44), drives same, and can regenerate po...
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WO/2023/035794A1 |
A hydraulic system for a rotary machine tool, comprising an oil tank, a main pump, a control valve, and a rotary motor. The oil tank is connected to an oil suction port of the main pump. An oil outlet of the main pump is connected to a p...
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WO/2023/035367A1 |
Disclosed are a fully-hydraulic automatic control system for use in a rope sawing machine and a pressure setting method therefor, and a rope sawing machine. The fully-hydraulic automatic control system comprises a feeding control portion...
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WO/2023/036000A1 |
A closed hydraulic control system is disclosed, comprising a closed main system (1), an oil replenishment system (2), and an oil discharge system (3). The oil replenishment system (2) is connected to the closed main system (1) and is use...
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WO/2023/035365A1 |
A hydraulic system of a wire saw machine and a wire saw machine are disclosed. The hydraulic system of a wire saw machine comprises a hydraulic pump (2), a priority flow distribution valve (6), a first hydraulic motor (9), a second hydra...
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WO/2023/035583A1 |
Disclosed is a hydraulic control system, comprising: a hydraulic pump (2), an oil tank (1), a lifting control valve (4) and a lifting cylinder (6), wherein the hydraulic pump (2) and the oil tank (1) communicate with the lifting cylinder...
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WO/2023/028731A1 |
A hydraulic device for a numerically controlled machine tool, which relates to the technical field of numerically controlled machine tools, and aims to solve the problem of reduced transmission efficiency caused by an insufficient automa...
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WO/2023/029292A1 |
An EHA hydraulic synchronization system, comprising at least two EHA hydraulic synchronous actuators (1), a control box (2), and control wire harnesses (3). Each EHA hydraulic synchronous actuator (1) is an independent control unit; a se...
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WO/2023/032576A1 |
In order to improve responsiveness, a throttle passage 226 that is always in communication with a pump port 111 is formed in a spool 220 of a valve body 20. In a case 10, supply pressure connection passages 124, 114, 125 are provided, wh...
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WO/2023/033080A1 |
Provided is a construction machine comprising a solenoid valve that reduces a boom-lowering pilot pressure applied to a second-direction control valve and a controller that controls the solenoid valve, wherein the controller calculates a...
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WO/2023/015577A1 |
A gas circulation device (40), a gas circulation method, a pneumatic device (60) and a semiconductor apparatus (150). The gas circulation device (40) is applied to the pneumatic device (60) comprising a solenoid valve device (601) and a ...
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WO/2023/017719A1 |
A load holding mechanism 20 comprises: a switching valve 22 that switches the operation of an operation check valve 21; and a relief valve 41 that opens when the pressure in a load-side pressure chamber 2a reaches a predetermined pressur...
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WO/2023/018125A1 |
A hydraulic system according to an embodiment of the present invention comprises: a main hydraulic pump for discharging a hydraulic fluid; a plurality of driving apparatuses operating by receiving the hydraulic fluid; a parallel flow pat...
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WO/2023/016840A1 |
A fluid-operated control device for double-acting actuators includes a valve body which integrates a first overcenter valve in which the inlet is connected to a distribution device by means of a first connecting branch and the outlet is ...
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WO/2023/014540A1 |
A hydraulic system may include a first actuator to control a first linkage member, a second actuator to control a second linkage member, a first primary hydraulic circuit and a first secondary hydraulic circuit that include the first act...
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WO/2023/014612A1 |
According to an embodiment of the present disclosure, there is provided a hydraulic power unit, HPU, for providing a pressurised hydraulic fluid to a material testing apparatus, the HPU comprising: a reservoir for storing a hydraulic flu...
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WO/2023/005475A1 |
A falling control method and system, and a crane. The falling control system is connected to a variable amplitude cylinder (610) of the crane, and a rod cavity of the variable amplitude cylinder (610) is connected to an electrical propor...
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WO/2023/008659A1 |
A structure assembly-shaped all-in-one volume booster of the present invention comprises: a housing comprising an input port receiving inflow of a fluid, an output port which allows the fluid to flow in an actuator, an exhaust port disch...
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WO/2023/006237A1 |
A hydraulic system can include a hydraulic actuator including a first port and a second port.; a hydraulic pump; a hydraulic reservoir; a first control valve operable to selectively control flow from the hydraulic pump to the first port;...
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WO/2023/003769A1 |
A hoist valve assembly for a work machine cylinder includes a main control valve, a counterbalance valve and a counterbalance shutoff valve. A main control valve raise position connects a head end of the cylinder with a pressurized fluid...
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WO/2023/000931A1 |
A rotary hydraulic system, engineering machinery, and a rotary control method. The rotary hydraulic system comprises: a first pipeline used for conveying hydraulic oil; a second pipeline used for conveying hydraulic oil; a motor (5), the...
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WO/2023/286276A1 |
A pump unit (1) comprises: a plurality of hydraulic pumps (12a, 12b) which are positive-displacement rotary pumps and each of which discharges a fixed-volume hydraulic fluid; a main oil passage (13) in which the hydraulic fluids discharg...
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WO/2023/286674A1 |
Provided is a compressed air supply device having a simple structure capable of supplying compressed air from the outside to a pneumatic device built into a moving device.　This compressed air supply device comprises: an air supply head...
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WO/2023/286530A1 |
A construction machine (100) comprises: a relief valve (40) that is opened so as to restrict a pressure in a pump discharge line (91) between a main pump (22) and a direction switching valve (31); a back pressure generating mechanism (67...
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WO/2023/279633A1 |
A vehicle end turning angle hydraulic device and a control method therefor. The device comprises a hydraulic pump device (10) and a plurality of servo hydraulic cylinder devices (20); the hydraulic pump device (10) is used for supplying ...
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WO/2023/274210A1 |
A hydraulic system capable of multi-stage pressure control and pressure speed regulation, and a working machine. The hydraulic system comprises a load-sensitive pump device (1), an electromagnetic reversing valve (3), and a regulation an...
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WO/2022/268361A1 |
The present disclosure is generally directed towards a machine (10) requiring separate control of a swing function, travel function and implements. The machine (10) comprises a swing-travel hydraulic system (30) for controlling swing and...
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WO/2022/270176A1 |
This hydraulic drive device drives a hydraulic cylinder by supplying and discharging a hydraulic fluid and comprises: a main pump which has first and the second pump ports and which suctions the hydraulic fluid from one pump port of the ...
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WO/2022/270178A1 |
This hydraulic drive device drives a hydraulic actuator by supplying and discharging a hydraulic fluid, and comprises: a hydraulic pump that discharges the hydraulic fluid; an electric motor that drives the hydraulic pump; a hydraulic ci...
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WO/2022/268228A1 |
A gas-liquid linkage actuating mechanism for a main-steam isolation valve of a nuclear power plant, suitable for three columns of independent safety-level power supply and instrument control systems, and comprising: a gas-liquid linkage ...
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WO/2022/257780A1 |
The present application provides a deviation correction method and apparatus for traveling of a working machine. The working machine comprises: a first pump, a second pump, a first motor, and a second motor. The first pump is connected t...
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WO/2022/252628A1 |
The present disclosure relates to a hydraulic control system, a tractor, and a hydraulic control method. The hydraulic control system comprises a hydraulic pump, a hydraulic cylinder, an execution element, a first electric control valve,...
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WO/2022/254403A1 |
A load sense hydraulic system includes pressure sensors that provide feedback to an electronic controller to monitor a pressure margin between a pump supply pressure and an actuator meter-in load pressure. Pre-collapse and collapse of th...
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WO/2022/253292A1 |
Disclosed are a two-gear four-wheel drive torque management system, and a vehicle, which relate to the technical field of vehicle engineering. The two-gear four-wheel drive torque management system comprises a housing, an input shaft, a ...
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WO/2022/254851A1 |
This control valve unit comprises: a pilot-operated type first operation valve 21 capable of being operated to a first closed position for cutting off a connection between a first oil passage 41 and a tank port 24, and to a first open po...
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WO/2022/248836A1 |
A hydraulic demultiplexer or multiplexer for providing hydraulic actuation of a plurality of robotic components wherein the hydraulic demultiplexer or multiplexer comprising an arrangement of hydraulically-controlled and hydraulically-op...
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WO/2022/247957A1 |
Disclosed are a hydraulic lifting apparatus, a hydraulic lifting system having same, and a lifting cargo carrying platform. The hydraulic lifting apparatus comprises a double-acting hydraulic cylinder, a lower support base disposed at a ...
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WO/2022/248249A1 |
A fluid control system for supplying fluid to a fluid consumer, comprising a valve module including a channel body to which a fluid switching valve, a fluid pressure regulator and a vacuum switching valve are attached, the channel body h...
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WO/2022/246268A1 |
A lift arm assembly (300) for a power machine (200) can include a lift arm (314), an implement carrier (306), a lift cylinder (330) that raises or lowers the lift arm, a levelling link (380), a tilt cylinder (376) that causes the impleme...
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WO/2022/233242A1 |
An adaptive seawater hydraulic system applied to a pendulum-type wave energy power generation device, which is sequentially provided with a seawater pump (1), a flow regulating valve (2), a high-pressure hose (3), a manual reversing valv...
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WO/2022/232953A1 |
A pneumatic double acting cylinder assembly is described where the air consumption is strongly reduced in comparison with a classical cylinder of a volume V. The proposed cylinder assembly is composed of two different chamber pairs or ch...
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WO/2022/234926A1 |
The present invention relates to an electrohydraulic system for heavy equipment and, more specifically, to an electrohydraulic system comprising: a hydraulic pump which is operated by a battery and a motor; a supply line which supplies w...
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WO/2022/228257A1 |
An integrated hydraulic system and a tire vulcanizing machine. The integrated hydraulic system comprises a hydraulic pump source, a control valve block and an execution mechanism. The execution mechanism comprises an integrated oil cylin...
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WO/2022/229387A1 |
The invention relates to a pneumatic actuator. According to one embodiment, the actuator has the following: a housing having a pressure chamber; a rod inserted into the pressure chamber of the housing from the outside; a rod seal which i...
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WO/2022/222574A1 |
A radial plunger hydraulic device using hydraulic control one-way valves for flow distribution, and a working method thereof. The radial plunger hydraulic device comprises a housing (200), several plunger assemblies, a spindle (300), fir...
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WO/2022/218818A1 |
The invention relates to a hydraulic drive, comprising a variable-rotational-speed drive machine (2) and a hydraulic machine (4), which is coupled to said drive machine and has a displacement volume which can be adjusted to zero and both...
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WO/2022/218619A1 |
In the method hydraulic fluid is carried via a supply line, in which three valves are arranged, to a hydraulic cylinder and the hydraulic cylinder raises and lowers a mechanical device with a tool, a lowering movement of the tool being a...
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WO/2022/218230A1 |
A vehicle, a hydraulic system (100) for a powertrain of a vehicle, and a control method therefor, the hydraulic system (100) for a powertrain for a vehicle comprising: an oil tank (10), a main cooling oil circuit (m), and a plurality of ...
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WO/2022/214638A1 |
The invention relates to an aerial work platform which comprises a chassis, a platform, a lifting structure moved by hydraulic actuators (41, 42) and a hydraulic system (S), controlled by a control unit (50) and including a circulation c...
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