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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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WO/2016/024501A1 |
This fluid control device (10) is provided with a container (13), a pump (11), a solenoid valve (12) and a capacitor. The pump (11) is driven by a primary power source and can pressurize or depressurize the container (13). The suction po...
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WO/2015/185252A1 |
The invention relates to a hydraulic drive (10) having at least one hydraulic machine (11, 12) in a hydraulic system (25) which has a low-pressure side (13) and a high-pressure side (16). In order to improve the protection of components ...
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WO/2015/185607A1 |
The invention relates to a hydraulic control device for a quick-acting valve of a steam turbine, comprising a module for reducing a hydraulic pressure by quickly opening an outlet valve and/or by unloading or loading an actuator for actu...
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WO/2015/174814A1 |
The invention relates to a safety valve for preventing the piston of hydraulic cylinders from falling, by retraction, as a result of pressure drops in the hopper lifting system of a compactor truck. The safety valve comprises: a valve bo...
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WO/2015/165561A1 |
The invention relates to a compressed-air system (1) having a safety function and to a method for operating such a compressed-air system (1). The compressed-air system (1) contains two working valves (2, 3), which each can selectively as...
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WO/2015/162229A1 |
The invention relates to a control system for a hydraulic work machine (10), comprising a plurality of hydraulic work circuits (12) for supplying actuators and/or drive units of movable machine parts with hydraulic fluid, and an emergenc...
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WO/2015/153692A1 |
An illustrative embodiment of a safety block may include an actuator bracket pivotally engaged with a pivot arm. The actuator bracket may be configured to engage a master actuator having a first end moveable with respect to a second end....
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WO/2015/151895A1 |
This invention, which improves responsiveness leading up to the actuation of a brake that applies braking to a motor, includes a motor, a brake that applies braking to said motor by reducing oil pressure and releases said breaking by inc...
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WO/2015/139910A1 |
The invention relates to a hydraulic drive comprising at least one hydraulic machine (11, 12) in a hydraulic system (25), which has a high pressure side (16) and a low pressure side (13). In order to simplify the operation of a hydraulic...
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WO/2015/107662A1 |
This work machine is provided with: a pneumatic pump (5A); a pneumatic drive device; a pneumatic control valve (50); a communicatively connected first control device (81) and second control device (82); a work tool (60); a first operatio...
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WO/2015/064044A1 |
This hydraulic drive unit (1) drives actuators (7, 9, 10) by supplying said actuators (7, 9, 10) with a hydraulic oil discharged from a hydraulic pump (11). The hydraulic drive device (1) is provided with operation valves (13, 14), a flo...
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WO/2015/053094A1 |
A control system (100) for a hybrid construction machine, said control system being equipped with: a first and a second main pump (MP1, MP2) that supply operating oil; a boom cylinder (BC), which extends and thereby raises a boom when op...
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WO/2015/045891A1 |
A control system of a hybrid construction machine is provided with a regeneration motor that rotates through a working fluid introduced from a turning circuit, a pressure detector that detects turning pressure of the turning motor or bra...
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WO/2015/012340A1 |
The present invention improves energy regeneration efficiency by allowing the actuator oil paths and the regenerative hydraulic motor to communicate with little pressure loss during regeneration without affecting the operation of the hyd...
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WO/2015/007318A1 |
There is presented an on-off pilot stage valve arrangement (20) for controlling at least one main stage valve (9a, 9b, 9c, 9d). The on-off pilot stage valve arrangement comprises a first pilot valve (18) discretely operable between two s...
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WO/2015/004003A1 |
A safety valve (100) with a pressure supply port (122), an actuator port (124), and a tank port (126) is provided. The safety valve (100) comprises a valve assembly (110) fluidly coupled to the pressure supply port (122), the actuator po...
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WO/2014/200355A1 |
An actuator assembly (100), the actuator assembly (100) including : - a first actuator (5), the first actuator (5) comprising an actuator housing (51), a piston (53) in the actuator housing (51) and an actuator rod (53); and - a hydrauli...
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WO/2014/174262A1 |
A failsafe mechanism for a tool is described, such as a lifting or separating wedge, and optionally having a piston. An actuator rod (10) activates and deactivates the tool in response to a control mechanism, and has a deformation region...
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WO/2014/172375A1 |
A method of deactivating an underwater hydraulic device provides a hydraulic device that is capable of being operated under water, the device having a hydraulic cylinder with a pushrod and a piston. The device is lowered below a water su...
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WO/2014/165888A1 |
The invention relates to an electrohydraulic control circuit for controlling a hydraulically actuated control element (5.6), by means of which a segment (5.3) of a manipulator, in particular of a large manipulator for self-propelled conc...
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WO/2014/155767A1 |
A hydraulic device (100) is configured so as to prevent the breakage of a single-directional filter section adapted for high-pressure oil. The hydraulic device (100) is provided with an accumulator (106) which supplies oil from an oil ta...
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WO/2014/141961A1 |
An actuator controller detects the displacement of a piston (7) in a first actuator (5), controls the first actuator (5) through feedback control, measures individual forces generated in the first and second actuators (5, 4), corrects th...
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WO/2014/137250A1 |
The present disclosure relates to a pilot pressure control system (28) for controlling a pilot signal pressure at a pilot inlet (24; 26) of a control valve (22). The pilot pressure control assembly (28) comprises a pilot outlet (36) adap...
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WO/2014/129676A1 |
Disclosed is a hydraulic system for a construction machine, provided with a protection device, wherein a flow rate discharged from a hydraulic pump is controlled according to oil temperature and a driver can be informed of the informatio...
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WO/2014/105695A1 |
Methods for initiating and implementing fail operational modes in an electro-hydraulic system are disclosed. In one step, a plurality of valve assemblies is provided wherein each of the valve assemblies has a pressure sensor and a positi...
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WO/2014/104603A1 |
The present invention relates to a hydraulic circuit system for forced regeneration of a diesel particulate filter, and more particularly, to a hydraulic circuit system for forced regeneration of a diesel particulate filter, which preven...
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WO/2014/091685A1 |
Provided is a hydraulic circuit that makes it possible to switch the circuit state between a state in which a regenerative action operates and a state in which the regenerative action stops. The hydraulic circuit comprises: hydraulic pum...
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WO/2014/061834A1 |
Disclosed is an automatic pressure control device for a construction machine for constantly maintaining an initially set pressure of a main relief valve which sets a maximum pressure of a hydraulic system. According to the present invent...
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WO/2014/055731A1 |
A method for detecting and isolation a leak in a hydraulic system having a supply pump serving at least one control valve is disclosed. In one embodiment, the control valve has multiple work sections. In step of the method, the hydraulic...
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WO/2014/032086A1 |
A fluid isolator (10) comprising a primary outlet port (30) adapted to be coupled to a hydraulic device; a first line (26) in fluid communication with the primary outlet port (30) and the bleed valve (14); a first one way valve ( 40) inh...
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WO/2014/017401A1 |
A steering device for a ship is provided with: first and second electric motors; first and second liquid pumps which are configured to be connected to and driven by the first and second electric motors, respectively, and which are each p...
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WO/2013/189566A1 |
The invention relates to a hydraulic adjusting device, in particular for use in a power plant, in particular a wind power plant, which has an adjusting function for a working operation and for a special operation. To this end, a double-a...
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WO/2013/183461A1 |
The present invention is provided with operation devices (4a, 4b), a control valve (5a) for controlling a hydraulic cylinder (3a) on the basis of the operation signal from operation device (4a), an inverter device (13) for controlling an...
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WO/2013/179517A1 |
According to the present invention, when a lock member is switched from a locked position to a released position, a lock valve switcher switches a lock valve from a locked state to a released state. A misoperation observation part keeps ...
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