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WO/2019/028535A1 |
A structural arrangement for fluid-separating equipment in a hydraulic press is described, which comprises a system composed of two separator cylinders, a larger cylinder (10) and another, smaller cylinder (30), each with two individual ...
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WO/2019/029901A1 |
The invention relates to a device (22) for controlling and regulating a required pressing force from a current collector (12) of a vehicle (10) on an overhead line (20), a method for using such a device (22) and a vehicle (10) having at ...
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WO/2019/029902A1 |
The invention relates to a device (22) for controlling a required pressing force from a current collector (12) of a vehicle (10) on an overhead line (20), a method for using such a device (22) and a power car (10) having at least one suc...
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WO/2019/028696A1 |
A digit hydraulic control system for solar thermal power generation reflector. The system comprises: a hydraulic auxiliary element (1), a hydraulic power element (2), a digital hydraulic cylinder (3), and a reflector motion mechanism (4)...
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WO/2019/029957A1 |
The invention relates to a large manipulator for concrete pumps having a boom pedestal which is arranged on a chassis and can be rotated about a vertical axis of rotation, having an articulated boom which is composed of at least two boom...
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WO/2019/026892A1 |
This hydraulic drive device is provided with: an electric motor; a variable capacity pump which is driven by the electric motor and which has a pair of pump ports of which a discharge side and a suction side switch in accordance with the...
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WO/2019/025491A1 |
An apparatus according to the present invention is an electro-hydrostatic drive for realizing a rapid movement during a rapid movement phase, a force-building movement during a force-building movement phase. The apparatus comprises a hyd...
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WO/2019/022164A1 |
A shovel according to an embodiment of the present invention is provided with: a lower travelling body; an upper turning body turnably mounted on the lower travelling body; a hydraulic pump mounted on the upper turning body; a hydraulic ...
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WO/2019/021495A1 |
The present invention achieves an outboard motor hoist that can automatically modify the lifting and lowering speed depending on the state of the outboard motor. An outboard motor hoist (1) comprises: a first oil passage which connects a...
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WO/2019/020617A1 |
Disclosed is a swiveling unit for swiveling objects, comprising a housing and at least one piston which delimits at least two chambers, further comprising an adjustable element which can be moved in different movement phases according to...
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WO/2019/022029A1 |
An excavator according to an embodiment of the present invention is provided with: a hydraulic motor for rotation; a hydraulic pump for supplying hydraulic oil to the hydraulic motor for rotation; a rotation control valve provided in a p...
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WO/2019/022001A1 |
A shovel according to an embodiment of the present invention comprises: a lower traveling body; an upper turning body turnably mounted on the lower traveling body; a hydraulic pump mounted on the upper turning body; a hydraulic actuator ...
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WO/2019/017318A1 |
Provided is a hydraulic drive device that makes it possible to operate a hydraulic actuator in accordance with operation of an operation device, even when there has been a failure in an electromagnetic proportional control valve or a wir...
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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/2019/012827A1 |
A hydraulic circuit 60 is used for a snap flask molding machine 1. The snap flask molding machine 1 is provided with: an upper molding flask 15; a lower molding flask 17; a lower raised flask 41; an upper plate 25 which can be placed int...
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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/2019/007208A1 |
A lifter control device, comprising an oil-absorbing filter (1), a gear pump (2), a high-pressure oil filter (3), a hydraulic output valve group (5), an electric control valve group (4), an oil path conversion valve (9), a control mechan...
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WO/2019/009198A1 |
An excavator according to an exemplary embodiment of the present invention is provided with: a lower traveling body (1); an upper revolving body (3) mounted on the lower traveling body (1); a main pump (14) mounted on the upper revolving...
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WO/2019/001401A1 |
An advance and retreat automatic control method based on hydraulic sensing conversion and an advance and retreat automatic control system based on hydraulic sensing conversion. The advance and retreat automatic control system based on hy...
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WO/2018/233649A1 |
A synchronous control method based on a synchronous control system for lifting hydraulic cylinders of a tundish in continuous casting. In the method, a position deviation that is beyond a set range and that is located between a driving h...
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WO/2018/234340A1 |
[PROBLEM] To achieve the improvement of recovery efficiency from a rod end oil chamber to a head end oil chamber during extending operation of a stick cylinder, and at the same time, to prevent an operation speed of the stick cylinder fr...
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WO/2018/234339A1 |
[PROBLEM] To be capable of dealing with a machine body lifting operation or a sudden operation, while improving energy efficiency, during a boom-lowering operation, and achieving the reduction of the number of parts, in a construction ma...
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WO/2018/230642A1 |
This hydraulic system comprises: an operating device which outputs an operating signal according to a control variable with respect to the operating part; a pump which supplies hydraulic oil to a hydraulic actuator via a control valve; a...
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WO/2018/230636A1 |
This hydraulic system comprises: an operating device which outputs an operation signal according to a control variable with respect to an operating part; a variable-capacity pump which supplies hydraulic oil to a hydraulic actuator; a co...
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WO/2018/224370A1 |
The invention relates to a pressure supply device for prioritised volume flow splitting, in particular in mobile working machines, comprising at least one adjusting pump (2) controllable by means of an LS signal as main pump, a constant-...
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WO/2018/211837A1 |
The present invention allows the number of components to be reduced and assembly work to be easily performed. A cylinder drive manifold device (10) that constitutes a cylinder drive apparatus (12) is provided with a block-shaped manifold...
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WO/2018/210550A1 |
The invention relates to a control apparatus for supplying at least one hydraulic consumer with fluid having a variable displacement pump (10) which may be controlled by means of a loadsensing pressure (LS), characterized in that, for a ...
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WO/2018/211022A1 |
The invention relates to a sawing system (Sg) for mounting in a machine for cutting a slice of a material, comprising a cradle (Bc) on which at least one double-acting hydraulic cylinder (V) coupled to a corresponding saw (Sc) is mounted...
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WO/2018/207268A1 |
A work machine provided with: a regulator (42) for controlling the pump capacity of a variable capacity hydraulic pump (41) on the basis of a pump control signal generated according to the operation amount of an operation lever device (5...
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WO/2018/203460A1 |
In order to form a speed controller which is applicable to a short-stroke cylinder with a simple configuration, a speed controller (1) is provided with: a first channel (15) and a second channel (16) which allow flow passage of a pressur...
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WO/2018/198535A1 |
A pressure booster (10) constituting a cylinder apparatus (12) is provided with a first piston (90) and a second piston (94) that are coupled to each other by a rod (96). A connection member (160) provided to the second piston (94) is co...
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WO/2018/199301A1 |
When a vibration-suppressing control is off, a signal pressure supply control valve stops the supply of a first signal pressure, a pressure adjustment valve is positioned in a first position connecting a supply/discharge port to a pump p...
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WO/2018/194110A1 |
In a hydraulic machine such as an excavation/turning work machine utilizing a load-sensing pump control system, the multiplexity of error factors results in a significant variation in the pump control characteristic among multiple hydrau...
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WO/2018/193741A1 |
This fluid pressure control device (100, 200) is provided with: a first control valve (30) which controls the flow rate of a hydraulic oil supplied to a lift cylinder (15); a second control valve (40) which controls the flow rate of the ...
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WO/2018/193740A1 |
This fluid pressure control device (100) is provided with: a first control valve (30) which controls the flow rate of a hydraulic oil supplied to a lift cylinder (15); a second control valve (40) and a third control valve (50) which cont...
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WO/2018/193807A1 |
This fluid pressure control device (100) is provided with a supply passage (21), a discharge passage (22), actuator control valves (30, 40) which control the flow of a hydraulic oil supplied to and discharged from actuators (15, 16), a s...
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WO/2018/194091A1 |
A hydraulic system equipped with: an electromagnetic proportional valve connected to a regulator via a secondary pressure line and connected to an auxiliary pump via a primary pressure line; an emergency line that branches from the prima...
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WO/2018/190615A1 |
A hydraulic system of construction machinery according to an embodiment of the present invention comprises: a boom cylinder; a first boom hydraulic line; a second boom hydraulic line; a regenerative line; a circulation line; an accumulat...
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WO/2018/190295A1 |
When a hydraulic machine such as an excavating revolving work machine works in an environment in which the engine output is reduced, such as in a low-pressure atmosphere at a high altitude, there is a problem in that noise is generated w...
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WO/2018/190756A1 |
The present invention regards a fluid actuator arrangement and a method of moving a first piston rod of the fluid actuator arrangement comprising a first piston (P1) comprising a first clamping device (K1), the first piston (P1) is arran...
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WO/2018/191710A1 |
A fluidic exoskeleton system. The system can include one or more fluidic actuator units that have: a joint; a first and second arm coupled to the joint; an inflatable bellows actuator extending between a first and second plate associated...
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WO/2018/178189A1 |
The invention relates to a positioning device (14) comprising a pneumatically actuatable positioning element (22) for moving a mechanical actuation element (16), and comprising a holding mechanism for maintaining the actuation element (1...
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WO/2018/179863A1 |
[Problem] To provide a construction machine equipped with a hydraulic closed circuit system which can inhibit unintended operation of a hydraulic actuator and continue the operation of a machine body even when a switching valve is stuck ...
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WO/2018/180512A1 |
Provided is construction machinery in which, when the rotational speed of a motor is set to be lower than a rated rotational speed and the discharge flow rate of a hydraulic pump is reduced, the operational range of a lever for varying t...
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WO/2018/177640A1 |
Apparatus for controlling a hydraulic machine, e.g. a turbine, a pump or a pump-turbine, using constant-displacement pumps that are driven at variable rotational speeds, said apparatus comprising a device for performing an emergency clos...
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WO/2018/177641A1 |
Apparatus for controlling a hydraulic machine, e.g. a turbine, a pump or a pump-turbine, using constant-displacement pumps that are driven at variable rotational speeds, said apparatus comprising a device for performing an emergency clos...
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WO/2018/177802A1 |
The invention relates to an actuator (1) for an automated or automatic transmission, having a cylinder housing (3), a piston unit (2), and a piston rod (13). The piston unit (2) is coupled to the piston rod (13) and is arranged in the cy...
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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/2018/178961A1 |
This hydraulic system comprises: a first proportional solenoid valve and a second proportional solenoid valve that, the larger the operation signal output from a first operation device and a second operation device, output a higher secon...
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WO/2018/180323A1 |
Provided is a hydraulic drive device for a working vehicle, the hydraulic drive device being configured to reduce impact on an operator who operates an actuator. This hydraulic drive device for a working vehicle comprises: a variable dis...
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