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WO/2022/208694A1 |
This work machine comprises: a work device that includes a plurality of hydraulic cylinders which are driven by hydraulic fluid from a pump, and a plurality of driven members which are driven by the hydraulic cylinders; an operation devi...
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WO/2022/206957A1 |
A hydraulic active suspension flow control system, comprising a hydraulic oil tank (1), a variable displacement pump (2) having an oil suction port communicated with the hydraulic oil tank (1), and a one-way valve (4), a servo valve (8) ...
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WO/2022/208621A1 |
This gas supply control device for supplying gas to a processing chamber in which an object to be processed is processed, is provided with: a first port connected to a gas source of a purge gas; a second port connected to a gas source of...
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WO/2022/209968A1 |
Provided is a fluid circuit capable of continuously driving an amplifier with a simple configuration. The present invention comprises: a first switching valve 8 for switching between flow paths 70, 80 and first flow paths 80, 81 in acc...
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WO/2022/209969A1 |
Provided is a fluid circuit that can continuously drive an amplifying device with a simple configuration. The fluid circuit comprises a first selector valve 8 and a second selector valve 130. According to a change in a fluid pressure t...
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WO/2022/201792A1 |
This work machine comprises: a hydraulic pump which is driven by an engine and discharges pressure oil; a hydraulic actuator operated by the pressure oil discharged by the hydraulic pump; a pressure accumulation device which accumulates ...
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WO/2022/202898A1 |
An excavator (100) comprising: a pressure sensor for detecting the pressure of a hydraulic fluid in a hydraulic actuator that operates in accordance with an operation command; a meter-in valve corresponding to the hydraulic actuator; a m...
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WO/2022/204553A1 |
A return manifold includes a housing having a first workport, a second workport, a third workport, and a fourth workport, and defining a first chamber and a second chamber. The return manifold includes a back-pressure disk arranged betwe...
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WO/2022/203457A1 |
The present invention relates to a pneumatic control module. More specifically, the present invention relates to a pneumatic control module and an element handler having same, the pneumatic control module controlling air pressure for a p...
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WO/2022/196595A1 |
This work machine comprises a first pump and a second pump that are driven by an engine, a hydraulic actuator that is driven by hydraulic oil supplied from the first pump, a control valve that controls the flow of hydraulic oil supplied ...
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WO/2022/193998A1 |
A motor pump, comprising: a variable speed motor (1) provided with a motor controller (2) and a motor shaft (3); at least one variable displacement pump (4, 5) driven by the motor shaft; and a control unit (8) for obtaining the current o...
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WO/2022/196252A1 |
The purpose of the invention of the present application is to provide a hydraulic system capable of causing a control pressure output from a solenoid valve to quickly follow a control request value at the start of driving the solenoid va...
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WO/2022/195832A1 |
This work machine comprises a main circuit that supplies a working fluid from a pump to an actuator, a pilot circuit that guides some of the working fluid from the pump to a pilot-pressure-receiving part of a control valve, and a bleed-o...
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WO/2022/190491A1 |
The purpose of the present invention is to provide a work machine with which it is possible to ensure high operability by preventing an actuator from thrusting out or preventing a vehicle body from undergoing shock using a bleed-off func...
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WO/2022/175024A1 |
The invention relates to a controller (110) for a vehicle (100) with a steering device (102) comprising a pump device (104), which includes a pump (112) and an electric motor (118), further comprising a transmission device (106) and the ...
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WO/2022/176653A1 |
A boom cylinder (10) drives a boom (6) and comprises a head-side oil chamber (10h) and a bottom-side oil chamber (10b). A first valve (21) comprises a first opening (21c) through which oil from the head-side oil chamber (10h) is discharg...
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WO/2022/172637A1 |
A multi-control valve (1) has a housing (2) provided with a parallel passage (41) for an arm, an arm-drawing supply passage (43), an arm-pushing supply passage (44), a parallel passage (51) for a boom, a boom-raising supply passage (54),...
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WO/2022/172636A1 |
This hydraulic shovel drive system (1) includes an arm control valve (31) and an arm switching valve (41). The arm switching valve (41) is connected to an arm push supply line (34) by a rod-side line (42), and is connected to an arm pull...
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WO/2022/173350A1 |
A cylinder positioning system (1) comprising a control unit for a pneumatically driven cylinder (14) in a cylinder chamber is provided. The control unit comprising a controller configured to control a set of drive units of the cylinder p...
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WO/2022/168477A1 |
A pump control device (14) and a valve control device (13) each comprise: command calculators (2 to 7) which calculate a control command for operating a controlled subject (100) through use of the operation amount of an operation and at ...
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WO/2022/167151A1 |
Problem to be solved: To avoid a large size of a direction change-over valve and enable accurate supply flow control when providing a flow control valve at an upstream side of the direction change-over valve to change the relationship be...
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WO/2022/163303A1 |
This work machine comprises a machine body (2), a first hydraulic actuator (C3, AC1) mounted on the machine body, a first control valve (V2, AV) that controls the first hydraulic actuator, a control device (U1) that controls the first co...
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WO/2022/165116A1 |
A valve for controlling a hydraulic cylinder on a work machine may include a raising position configured for placing a pump in fluid communication with a cap end of the hydraulic cylinder. The valve may also include closed center positio...
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WO/2022/159945A1 |
A hydraulic implement, which may be configured for attachment to a hydraulic system having a pressure line and a return line, may include a motor, an anti -cavitation valve, and an adjustable flow control valve. The motor may be operably...
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WO/2022/143357A1 |
A bidirectional speed-adjustment hydraulic valve group, comprising a proportional speed-adjustment valve (2); an inlet of the proportional speed-adjustment valve (2) is connected to an inlet of an electromagnetic proportional overflow va...
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WO/2022/142220A1 |
An emergency pumping control packet, a hydraulic system, and a pumping device. The emergency pumping control packet (1) comprises an emergency operation module (11) and a power supply interface module (12); the emergency operation module...
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WO/2022/142169A1 |
A dual-power tarpaulin driving system (100) and a vehicle. The dual-power tarpaulin driving system (100) comprises: a hydraulic motor (10), which is connected to a tarpaulin mechanism (120); a valve control assembly (20), which is connec...
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WO/2022/137872A1 |
This work machine comprises: a flow rate control valve for controlling the flow rate of a hydraulic oil being supplied to a hydraulic actuator; a center bypass line for guiding the hydraulic oil from a pump to a tank through a center byp...
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WO/2022/131422A1 |
The present invention provides a compressed air processing apparatus capable of efficiently controlling compressed air supply and regeneration operations thereof by means of an electronic control device. In particular, the present invent...
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WO/2022/131421A1 |
The present invention provides a compressed air processing device which can efficiently control the supply and regeneration of compressed air of the compressed air processing device by means of an electronic control unit. Particularly, t...
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WO/2022/131195A1 |
A valve unit (1) according to one embodiment of the present invention includes a valve device (3) and a control device (8). The valve device (3) includes: a spool valve (61) that switches the oil discharge direction of a working oil with...
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WO/2022/121506A1 |
Disclosed is a rear-mounted direct-drive type rotary mechanical arm, comprising a working arm, a power box mounted at the front end of the working arm, and a hydraulic rotary connection unit mounted at the rear end of the working arm; th...
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WO/2022/116567A1 |
A hydraulic control system and a mechanical device. The hydraulic control system comprises a pump (300), a first apparatus (100), a second apparatus (200), and a backflow control apparatus (400). The pump (300) comprises an output channe...
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WO/2022/111963A1 |
Such a hydraulic system (10) and vehicles (100) and containers (110) having such a hydraulic system are proposed. There is provision here that the hydraulic system (10) has at least two supporting cylinders (60A, 60B, 60C, 60D) for exten...
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WO/2022/108045A1 |
The present invention relates to a precise control means for a pneumatic actuator. Specifically, a precise control means for a pneumatic actuator (1) comprises: a precise location-based displacement control unit (100) for controlling the...
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WO/2022/107430A1 |
A multi-control valve according to the present invention includes: a plurality of spools (3) arranged side by side in a specific direction; and a housing (2) provided with a plurality of sliding holes (20) into which the spools (3) are r...
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WO/2022/107540A1 |
This air control circuit equipped with a safety feature is composed of only an air circuit. The circuit comprises a main air line (4) that controls an air device (3) by turning two external pilot–type solenoid valves (5a, 5b) on and ...
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WO/2022/107230A1 |
This air control circuit equipped with a safety feature is composed of only an air circuit. The circuit comprises a main air line (4) that controls an air device (3) by turning two external pilot–type solenoid valves (5a, 5b) on and ...
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WO/2022/102391A1 |
A speed compensation unit (54) of a construction machine (100) performs feedback control in which when a compound operation is performed and a preset load determination condition is satisfied, the speed compensation unit (54) calculates ...
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WO/2022/099220A1 |
Devices and methods for operating a diaphragm compressor. Embodiments of the present disclosure comprise an oil piston being driven to pressurize work oil against the diaphragm of the compressor. In embodiments, an injection pump provide...
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WO/2022/094121A1 |
A vessel braking control system for a marine vessel that utilizes one or more of the vessel's features and effectors to increase the drag on the vessel both through increased drag on the features and effectors themselves and by creating ...
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WO/2022/085645A1 |
The present invention provides a construction machine equipped with a pressure accumulation device that accumulates return oil from an actuator, and that can balance an improvement in fuel efficiency with an improvement in productivity. ...
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WO/2022/084173A1 |
The invention relates to a method for operating a hydraulic drive (100), which has a hydraulic consumer (130) with a positionable piston (134) in a cylinder (132), which is connected at one connection point (A) to a pressure-medium store...
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WO/2022/077913A1 |
A forklift tilt cylinder motion buffer control system and method based on angle compensation. The control system comprises a tilt cylinder (1) for controlling a forklift mast (2) to tilt forwards and backwards and a lift cylinder for con...
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WO/2022/080311A1 |
A directional/flow control valve (1) has a pump port (11), a first supply/discharge port (12), a second supply/discharge port (13), and a tank port (14), and includes: a housing (2) inside of which a first pilot chamber (41), a second pi...
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WO/2022/068681A1 |
A liquid path system (12), comprising a flow path selection valve (10), a pump assembly (14), and a fluid network (60). The fluid network (60) comprises a reservoir (64), a first flow passage, a second flow passage, and a reaction device...
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WO/2022/068661A1 |
A pressure-compensation controlled hydraulic pump, comprising an electric proportional pressure compensator (14), a hydraulic pump (11), a hydraulic control reversing valve (12) and a servo piston (13); the electric proportional pressure...
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WO/2022/064021A1 |
Control method for actuating a loader (WL) comprising an arm (B) to which a bucket (BK) is connected, the method comprising in cyclic execution checks (FB) that a first mono-stable button is depressed, if it is depressed, then execution ...
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WO/2022/057550A1 |
A positive-flow get-on and get-off composite stability control system, comprising: a first main pump (P1), a second main pump (P2), a first valve body (1), and a second valve body (2). The first valve body (1) is provided with a first ma...
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WO/2022/053171A1 |
A hydraulic system can include a pump having a load-sense control arrangement configured for variable displacement operation of the pump, a reservoir, a plurality of hydraulic actuators, and a sectional valve assembly including multiple ...
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