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Matches 1 - 50 out of 2,965

Document Document Title
WO/2017/199607A1
This liquid leakage detection device comprises: a sensor section (12) for detecting liquid present between a plurality of seals (8, 9) which are axially arranged on the inner periphery of a shaft support member (7) in which a shaft (2) i...  
WO/2017/195716A1
Provided is a crane 1 constituting a hydraulic system H that includes: actuators 25, 35, 45; direction switching valves 20, 30, 40 that switch the flow direction of an operating fluid for actuating the actuators 25, 35, 45; and proportio...  
WO/2017/186712A1
The invention relates to a hydraulic spindle comprising a cylinder which has a piston. The piston separates a first cylinder chamber from a second cylinder chamber. A pressure medium can be supplied to the piston in the retracting direct...  
WO/2017/187934A1
A monitoring device (10) has a first pressure sensor (50) that detects a first pressure value (P1) of a pressurized fluid in a first pipe (26), a second pressure sensor (52) that detects a second pressure value (P2) of a pressurized flui...  
WO/2017/178347A1
An electrohydraulic control circuit (1) for actuating a hydraulically activated drive assembly (2), by means of which a mast segment of a manipulator, in particular of a large-scale manipulator for truck-mounted concrete pumps, can be ad...  
WO/2017/175820A1
Provided is an emergency operation valve capable of alternatively switching between an open state and a closed state, wherein the emergency operation valve is configured so as to be provided with a valve box having a hollow valve chamber...  
WO/2017/175849A1
An air cylinder 50 is provided with a cylindrical cylinder 52 and a piston 51 that is moved by the pressure of a fluid fed to chambers 56, 57 disposed within the cylinder 52. A monitoring device 1 is provided with a heat flux sensor 10 a...  
WO/2017/175862A1
Provided is a crane that is capable of protecting a hydraulic cylinder by suppressing operation of the hydraulic cylinder when the hydraulic cylinder is in poor connection with a hydraulic circuit. A crane (1) provided with a derricking ...  
WO/2017/176568A1
The present disclosure relates to an electronic control system for pneumatic grips, using proportional air pressure control, as employed in the field of materials testing. The disclosed embodiments allow for variable gripping pressure th...  
WO/2017/171022A1
Provided is a failure detection device which is capable of automatically detecting failure of a hydraulic pilot circuit following a normal lever operation. The failure detection device is for a pilot circuit provided with: a pilot pressu...  
WO/2017/171021A1
Provided are: a hydraulic system which exhibits excellent safety, and which is capable of slowly driving an actuator during emergency operation; and an emergency operation method. This hydraulic system is provided with: a hydraulic pump;...  
WO/2017/167435A1
A control device is disclosed for at least one hydraulic working section (A, B), which can be connected to a pressure supply source (P) and a return flow (T) via a hydraulic supply circuit and a control valve (34) supplied with a pilot p...  
WO/2017/164371A1
Provided is a hydraulic system with which an operator can safely perform work during an emergency operation even in the event that an electromagnetic proportional valve has failed. This hydraulic system is provided with a hydraulic pump,...  
WO/2017/164370A1
Provided is a failure diagnosis device with which failure of an unloading circuit of a hydraulic system can be reliably discovered. The unloading circuit is provided with a pump oil passage that connects a hydraulic pump and a directiona...  
WO/2017/130404A1
The purpose of the present invention is to provide a spool valve device for a pneumatic cylinder, which is capable of adjusting the dead band during switching back and forth between an extension direction operation and retraction directi...  
WO/2017/129293A1
The invention relates to a hydraulic cylinder unit (1) having a hydraulic cylinder (2), a piston (3) which can be moved in the hydraulic cylinder (2), and a servo valve (7). The piston (3) separates working volumes (5A, 5B) of the hydrau...  
WO/2017/125247A1
The invention relates to a safety controller, which serves the purpose of the quick pressure relief of a hydraulic load, comprising at least one pair of control valves, which can be connected to each other in a fluid-conducting manner, c...  
WO/2017/125121A1
A circuit arrangement for at least one fluidic actuator (11) having a piston-rod unit (14) guided so as to be longitudinally movable in a housing (8), which unit divides the housing (8) into two working spaces (16, 18), which are each as...  
WO/2017/110177A1
According to the present invention, a back pressure control valve (40) is provided with: a switching valve (50) which opens/closes a connection path (13); and an emergency operation valve (60) which is provided to a branched path (14) an...  
WO/2017/110167A1
The present invention can achieve energy conservation by carrying out recycle control even when an abnormality occurs in a pressure sensor of a hydraulic actuator. The present invention is provided with: a hydraulic pump (41b) that suppl...  
WO/2017/112720A1
Apparatus for independently controlling the seating force in a rotary valve are described herein. An example apparatus includes a rotary valve having a flow control member and a dual-acting actuator operatively coupled to the rotary valv...  
WO/2017/091892A1
An apparatus for cutting involves a support configured to stably support the apparatus on a surface, an articulated boom rotatably mounted on the support proximate a first end of the boom, and a hydraulically operated end effector mounte...  
WO/2017/079792A1
A piston and cylinder system (10), the cylinder (12) including a closed end (14) and an open end (16). The piston (18) is movable in an axial direction within the cylinder (12) between a fully extended position and a fully retracted posi...  
WO/2017/077343A1
A valve system comprising: a first channel and a second channel in a parallel arrangement, each channel having an upstream end and a downstream end; an inlet valve arrangement connected to the upstream ends of the channels and configured...  
WO/2017/077786A1
This liquid leak detection device is configured by being provided with: a sliding member (S), which has an elastic section (10) and which slides on the outer circumference of a rod (2) that is capable of moving in the axial direction wit...  
WO/2017/071584A1
An axle-locking hydraulic system of a two-way driving shuttle vehicle, comprising an axle-locking fluid tank (11), an axle-locking circuit, an axle-locking solenoid reversing valve (21), and a burst pipe emergency apparatus. The axle-loc...  
WO/2017/064398A1
The invention relates to a control system which comprises: a plurality of flow valves (2) on channels (54) of reaction fluid, which are i) in a closed position or ii) in an open position; a plurality of control pipes (4) connected to a s...  
WO/2017/065249A1
First, the pressure of the oil in an oil passage in a control valve device is measured. Then, on the basis of the measurement results obtained, amplitude and period of pressure fluctuations are detected and a diagnosis is made whether th...  
WO/2017/021080A1
The invention relates to a hydraulic drive (1) for executing a linear movement, having a motor (2), a pump (3), a lifting cylinder (4) that has a linearly movable piston (5) and a cylinder housing (6) having at least one first connection...  
WO2017009296A1
A hydraulic circuit comprising: a hydraulic input A, a hydraulic output B, a first directional control valve 12 arranged between the hydraulic input and hydraulic output, and a second directional control valve arranged between the hydrau...  
WO/2016/210397A1
An electro-pneumatic controller adapted to use a non-inert fluid as a control fluid includes a base portion and a cap portion removeably secured to the base portion. A non-intrinsically-safe process may be disposed within an interior of ...  
WO/2016/207741A1
The invention relates to a safe hydraulic drive system and a process for operating such a drive system, moving a piston rod (23) of at least one cylinder (2), comprising at least one first cylinder chamber (21) and a second, separate cyl...  
WO/2016/199654A1
A hydraulic drive system (100A) of an industrial machine is provided with a boom cylinder (4) (first hydraulic actuator), an arm cylinder (8) (second hydraulic actuator), a hydraulic pump device (51), a control valve (5), a regenerator (...  
WO/2016/199184A1
A compound electromagnetic valve (2) has multiple electromagnetic valves (24a and 24b), and an output port (22). The output port (22) supplies air to an air supply destination only when all of the multiple electromagnetic valves (24a and...  
WO/2016/194415A1
Provided is a work machine hydraulic energy reusing device with which brake pressure can be reliably maintained even when an electrical failure occurs in an electromagnetic valve, etc. and opening operation is erroneously initiated. The ...  
WO/2016/193065A1
The invention relates to a cylinder unit comprising a rod and a housing, the rod being guided on said housing so as to be displaceable along an actuation axis, a piston being secured to said rod and dividing the interior of the housing i...  
WO/2016/194783A1
Provided is a construction-machine hydraulic control device that can reduce meter-out pressure loss in accordance with changes in a negative load acting on a hydraulic actuator, and that can prevent a deterioration of operability even if...  
WO/2016/188906A1
The problem addressed by the invention is that of developing a hydrostatic control circuit (100), in particular as an auxiliary steering system in utility vehicles, comprising: a hydraulic pump (20), which has two connections (21, 22) an...  
WO/2016/169832A1
The invention relates to a system for controlling the pressure of an overpressure container having an inert gas atmosphere, comprising a container pressure control valve (1) a control device (12) for controlling the container pressure co...  
WO/2016/153384A1
´╗┐The invention relates to devices for protecting water hoses, including a protective casing and a means for affixing the protective casing, and may be used for capturing and redirecting, into a drain, water flowing out of torn water ho...  
WO/2016/139629A1
A hydraulic implement (100) comprises a support structure (1) connectable to a moving arm of an operating machine, at least on hydraulic motor (3) for the rotation of a working element (2), a feed pipe (31) connectable to a hydraulic cir...  
WO/2016/128106A1
The invention relates to a valve, having a control slide (4) guided in a valve housing (6) so as to be longitudinally movable, which control slide selectively connects a plurality of fluid connection points (P, T, A, B) in the valve hous...  
WO/2016/109084A1
A testing apparatus employs an interface module removably attached to a filter testing device. The interface module includes a first flowpath communicating with an outlet of the testing device and a housing of the filter device, a first ...  
WO/2016/096221A1
The invention relates to an actuating drive for a control valve, in particular a steam turbine control valve, comprising a working cylinder, which has a piston and a piston rod, which is connected to the piston and which forms an actuato...  
WO/2016/088764A1
Provided is a joint device which can be connected by quick and simple operation while being subjected to high-pressure high-flow-rate pressurized operating oil. The present invention comprises: a closed chamber 27 provided in a hydraulic...  
WO/2016/072333A1
This control valve device is provided with: a valve main body (B) in which is formed an actuator port (1) for connection to an actuator; a communication path (8) formed in the valve main body (B), for communication between the actuator p...  
WO/2016/061079A1
The subject matter of this specification can be embodied in, among other things, an apparatus that includes a valve (100) with a valve housing having an axial bore, a first inlet port, a first outlet port, and a piston (108) located with...  
WO/2016/037689A1
Disclosed is a device for relieving pressure in hydraulic lines, in particular in connecting lines that have coupling points (6, 8) and are located between attachments comprising hydraulically actuated actuators and working implements su...  
WO/2016/034582A1
The invention relates to a hydraulic device for driving an actuator to be hydraulically controlled or actuated, comprising a motor arranged in a motor housing, a compensating tank (31) for accommodating hydraulic fluid, and a hydraulic p...  
WO/2016/028646A1
A fluid pressure regulator has a high pressure side and a low pressure side separated by a plunger. The plunger is biased against fluid pressure on the low pressure side. The fluid pressure on the low pressure side in opposition to the b...  

Matches 1 - 50 out of 2,965