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WO/2019/054365A1 |
This hydraulic drive system for a construction machine comprises: a boom control valve that is coupled to a boom cylinder by a boom lifting supply line and a boom lowering supply line; a pump that takes in a working oil through an intake...
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WO/2019/054366A1 |
This hydraulic drive system for a construction machine comprises: a bidirectionally tiltable pump connected to a turning motor; a regulator that adjusts the tilting angle of the bidirectionally tiltable pump; a main pump coupled to the b...
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WO/2019/049435A1 |
In the present invention a hydraulic circuit (11) in a hydraulic shovel (1) comprises: a main hydraulic circuit (11A) that includes a boom cylinder (5D); a pilot hydraulic circuit (11B) for operating the boom cylinder (5D); and an oil re...
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WO/2019/049434A1 |
A fluid circuit (10) for air cylinders is provided with a switching valve (14), an air supply source (16), an exhaust port (18), and a check valve (20). When the switching valve is in a first position, one cylinder chamber (32) is connec...
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WO/2019/049436A1 |
According to the present invention, a controller (45) is provided with: an elapsed time measurement unit (47A) which, by means of a reset signal from a reset switch (44), measures the time (tx) elapsed since the initial use of an accumul...
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WO/2019/046927A1 |
The application of fluidic systems to a variety of consumer devices would typically exploit fluidic structures of a few millimeters to a centimeter or so that are between the common fluidic realms of microfluidics and macrofluidics. For ...
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WO/2019/044808A1 |
A cylinder device (C1) according to the present invention comprises: a cylinder (2); a rod (4) inserted into the cylinder (2); a piston (3) that is slidably inserted into the cylinder (2), is connected to the rod (4) and partitions the i...
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WO/2019/039286A1 |
The purpose of the present invention is to enable air in a closed-circuit oil-hydraulic drive unit to be easily bled. This hydraulic drive unit (1) is provided with a pump (12), a pair of supply and discharge lines (13a, 13b), a valve bl...
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WO/2019/034551A1 |
A drive train module (10) for a motor vehicle is described, which drive train module (10) comprises a clutch (12) with an input region (14) and with an output region (16), wherein mutual rotational driving of the input region (14) and of...
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WO/2019/034341A1 |
The invention relates to a compressed air maintenance unit (1) that has at least two maintenance devices (2, 3) with a respective device housing (12) through which a device channel (18) passes. The maintenance devices (2, 3) are connecte...
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WO/2019/015109A1 |
The present invention belongs to the field of mechanical apparatuses, and provides a duplex oil cylinder, a crossbeam opening and closing device, a crossbeam opening and closing method, and a crossbeam opening and closing control system....
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WO/2019/011860A1 |
The present invention relates to a hydraulic valve control unit for an open center hydraulic system, the open center hydraulic system comprising a pump, a shunt valve and one or more actuator valves coupled to the shunt valve, wherein ea...
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WO/2019/011859A2 |
The present invention relates to An open center hydraulic system (100), the open center hydraulic system (100) comprising a tank configured to hold hydraulic fluid, a pump configured to provide pressurized hydraulic fluid from the tank, ...
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WO/2017/076728A9 |
The invention relates to a compressed air preparation device (10) for rail vehicles or utility vehicles, comprising a compressed air inlet (12), to which an air compressor (14) can be connected, a compressed air outlet (18), which is con...
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WO/2019/004156A1 |
This hydraulic drive system is provided with: a hydraulic motor; a bi-directional pump connected to the hydraulic motor so as to form a first closed loop and driven by an engine to supply hydraulic oil to the hydraulic motor; a first reg...
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WO/2019/000251A1 |
An intelligent adjustable high-pressure pump station system, comprising an oil tank (1), energy accumulators (2), and oil pumps. The oil tank (1) is connected to at least two oil pumps by means of pipelines; an energy accumulator (2) is ...
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WO/2018/228705A1 |
A process control device (1) is proposed which has an electropneumatic control unit (2) which is used for activating a pneumatic actuating drive (3). The control unit (2) has a fastening module (36) by means of which it is fastened to a ...
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WO/2018/229442A1 |
A device for penetrating into a fluid, comprising at least one profile (10), a fluid injector (14), a means for measuring the separation of the flow (18) along the profile, downstream of the injector, and an injector activity controller ...
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WO/2018/224834A1 |
A fluidic control system (1) for controlling a vehicle, which includes a controller (2) and a closed fluidic circuit. The circuit includes a pump (3)for pressurising fluid in the circuit, valve means (40, 50, 60), an actuator (4, 5, 6) a...
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WO/2018/226388A1 |
A system includes a hydraulic energy transfer system configured to exchange pressures between a first fluid and a second fluid, wherein pressure of the first fluid is greater than pressure of the second fluid. The system also includes a ...
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WO/2018/221410A1 |
This hydraulic valve unit (53) is provided with a main oil path (54) which allows communication between a master cylinder side and a slave cylinder side, and a bypass oil path (55) which circumvents a valve mechanism (56) in the main oil...
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WO/2018/210084A1 |
An automatic-pressure-matching energy utilization system, comprising a synchronous motor (1), a control valve (2), a working pump (3), an energy accumulator (4), a pressure actuator (5), and corresponding oil path connections. A master o...
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WO/2018/206508A1 |
The invention relates to an end disk for filter material (10) for filtering a liquid, in particular a hydraulic oil, having a passage opening (11) for filtered liquid, which passage opening is surrounded by a sealing ring (20) for a conn...
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WO/2018/206316A1 |
The invention relates to a valve comprising a valve housing (2) which, for transport of a heatable fluid such as hydraulic oil, has at least one utility connection (A, B), at least one pressure supply connection (P), and at least one ret...
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WO/2018/202290A1 |
An electropneumatic controller (7) is proposed, which has an electropneumatic control unit (24) on which is provided an expansion interface (26), on which an expansion module arrangement (25) is fitted. In the expansion module arrangemen...
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WO/2018/202291A1 |
The invention relate to an electropneumatic control apparatus (3), which has a carrier module (38), on which a control unit (22), which is equipped with control electronics (34) and control valve elements (23), and an expansion module as...
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WO/2018/200700A1 |
A system for damping mass-induced vibrations in a machine having a long boom or elongate member, the movement of which causes mass-induced vibration in such boom or elongate member. The system comprises multiple pressure sensors operable...
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WO/2018/200689A1 |
A system for damping mass-induced vibrations in a machine having a long boom or elongate member, the movement of which causes mass-induced vibration in such boom or elongate member. The system comprises at least one motion sensor operabl...
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WO/2018/200696A1 |
A system for compensating for drift or movement of a hydraulic actuator connected to a machine's boom or similar elongate member that is caused, at least in part, by damping of mass-induced vibration. The system comprises a processing un...
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WO/2018/193914A1 |
The present invention is capable of preventing bubbles from forming on a liquid surface even when the height of the liquid surface changes and the liquid surface shakes significantly. The interior of a tank body for storing a liquid is p...
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WO/2018/191790A1 |
This disclosure relates to a system for reducing cavitation at a surface that moves relatively with respect to a first fluid. The system comprises a degasser configured to at least partially degas a second fluid. The system also comprise...
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WO/2018/179183A1 |
This working machine is provided with: a hydraulic cylinder 20 which drives a working implement 3; a control valve 22 which switches a discharge pipeline of a hydraulic pump 21 to be connected to a bottom oil chamber or a rod oil chamber...
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WO/2018/179070A1 |
The objective of the present invention is to provide a hydraulic control system for a working machine with which it is possible to detect an abnormality in a pump output switching device irrespective of the state of the abnormality of th...
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WO/2018/179574A1 |
This hydraulic control device comprises a pilot pressure control device (21) that variably controls pilot pressure supplied to a hydraulic pilot part of a directional control valve (14). The pilot pressure control device (21) includes fi...
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WO/2018/170951A1 |
Disclosed is a fixing device for a hydraulic valve, the fixing device comprising a fixing telescopic rod (1), a fixing telescopic rod transition plate (2), a fixing telescopic rod bottom disc (3), a fixing bolt (4), a fixing suction disc...
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WO/2018/175741A1 |
Hydraulically-amplified, self-healing, electrostatic actuators that harness electrostatic and hydraulic forces to achieve various actuation modes. Electrostatic forces between electrode pairs of the actuators generated upon application o...
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WO/2018/168236A1 |
Provided is a hydraulic drive device for a work machine that stores energy in a pressure accumulator and thereby recovers/reuses the energy, wherein operability corresponding to a change in the load on a front work machine due to the car...
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WO/2018/168847A1 |
The present invention enables initial air to be discharged externally by way of a pathway separate to that for a liquid. A lid covering an upper end surface of a case having a substantially bottomed cylindrical shape has provided therein...
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WO/2018/154035A1 |
The invention relates to a method for operating a reciprocating piston machine (10), particularly an internal combustion engine, having at least one piston rod (1a, 1b) that is hydraulically adjustable in length for setting a compression...
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WO/2018/156536A1 |
A pneumatic cylinder including a cylinder body and a piston. The cylinder body has a chamber that includes an open end of the cylinder body. The piston is slidably moveable within the chamber along an axis of the cylinder. The piston has...
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WO/2018/147491A1 |
Disclosed is a hydraulic breaker comprising: a cylinder having a plurality of hydraulic ports; a piston reciprocating inside the cylinder by means of a hydraulic pressure of a hydraulic fluid flowing in or discharged through the hydrauli...
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WO/2018/147261A1 |
Provided is a fluid pressure circuit that can smoothly control a rod of a cylinder device controlled according to an operation command. A fluid pressure circuit (52) comprises: a tank (8) that stores a fluid, a fluid pressure actuator (2...
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WO/2018/147223A1 |
The present invention is configured such that bubbles do not flow out of a tank with fluid during filtration and such that dust, etc. collected by filtration does not fall into the tank when a filter element is replaced. According to the...
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WO/2018/143081A1 |
This hydraulic drive system, in which a main circuit forms a hydraulic closed loop with a hydraulic actuator, is provided with: a hydraulic pump connected to the hydraulic actuator through two different pressurized fluid paths ; pressuri...
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WO/2018/131118A1 |
This fan drive system is provided with: a hydraulic pump; a hydraulic motor that rotates a fan on the basis of a hydraulic oil supplied from the hydraulic pump; a data acquisition unit that acquires the actual rotation speed of the fan; ...
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WO/2018/129232A1 |
Embodiments of the present disclosure describe both mechanically-operated and electrically-operated, locally-actuated partial stroke testing devices and systems for testing operation of an emergency isolation valve.
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WO/2018/122154A1 |
The invention relates to a hydraulic arrangement comprising a de-gassing device for a hydraulic pressure medium and comprising a container or line section which is connected fluidically to the de-gassing device and which is configured to...
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WO/2018/124891A1 |
The encapsulated RFID tag is formed by a casing containing a chip inside. The RFID tag is adhered to the external wall of the gas cylinder. The encapsulated RFID tag is positioned around the neck of the valve of the gas cylinder by means...
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WO/2018/117029A1 |
This hydraulic shovel driving system is provided with: a boom cylinder; a first boom control valve which is connected to the boom cylinder by a boom raising supply line and a boom lowering supply line, and which is connected to a first p...
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WO/2018/113837A1 |
The invention relates to a vibration damper (1) for a hydraulic system of a vehicle clutch. Said vibration damper (1) has a damping chamber (2) which is open to one side and which is essentially formed by an inner face (8) of an outer wa...
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