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Matches 1 - 50 out of 33,359

Document Document Title
WO/2019/048455A1
The invention relates to a valve, in particular for use as a pressure balance (38) in lifting devices (2) that can be actuated hydraulically, comprising a valve housing (54) which has a control connection (40) and a fluid inlet (64) and ...  
WO/2019/049327A1
According to the present invention, a first torque control proportional electromagnetic valve (37) is connected to a third pressure-receiving chamber (32D) of a first torque control regulator (32) via a first torque control pipeline (41)...  
WO/2019/050064A1
A hydraulic machine may include an engine; a working fluid source driven by the engine to supply working fluid; an actuator; a flow control valve fluidly communicating with the working fluid source, wherein when signal pressure is applie...  
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...  
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...  
WO/2019/043958A1
An outboard motor raising/lowering device that can automatically change a raising/lowering speed in accordance with the state of an outboard motor. An outboard motor raising/lowering device (1) that comprises: a first oil passage that co...  
WO/2019/044006A1
This air cylinder fluid circuit (10) is formed by connecting a switching valve (14), which switches the supply and discharge of compressed air, and cylinder port parts (34, 36) of an air cylinder (12) by means of pipes (16, 18), wherein ...  
WO/2019/043957A1
The present invention makes it possible to perform complicated tilt trim control while reducing user labor. The present invention comprises a control unit (100) that controls the raising/lowering of an outboard motor (300) and the openin...  
WO/2019/039294A1
Provided is a hydraulic working machine that enables improvement of finishing accuracy in a horizontal leveling work, a slope face shaping work, and the like, by preventing sudden acceleration of an arm when excavation load is decreased ...  
WO/2019/038932A1
In order to achieve an outboard motor lifting device which can automatically change the speed of lifting depending on the state of the outboard motor, this outboard motor lifting device (1) is provided with a first oil path which connect...  
WO/2019/035016A1
A valve includes a bore within a valve body having a central axis. A plurality of galleries in the bore define flow paths for hydraulic fluid. A spool is positioned in the bore, and the spool is moveable along the central axis between a ...  
WO/2019/028695A1
A digit hydraulic control system for azimuth control of a heliostat. The system comprises: a hydraulic auxiliary element (1), a hydraulic power element (2), a digital hydraulic motor (3), and a heliostat azimuth motion mechanism (4). The...  
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 ...  
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 ...  
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...  
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)...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
WO/2019/011859A3
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, ...  
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, ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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-...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  

Matches 1 - 50 out of 33,359