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WO/2018/067153A1 |
A system for control using a hydraulic fluid includes a hydraulic control line for flowing the hydraulic fluid, a fluid line in fluid communication with the hydraulic control line, a flow controller configured to regulate a flow of the h...
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WO/2018/068054A1 |
A hydraulically- actuated device comprises a self-contained fluid reservoir comprising a tank for receiving a fluid, a reservoir port, and a flexible diaphragm. An actuation member comprises a hydraulically actuated piston in a cylinder....
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WO/2018/058168A1 |
An apparatus for actuating a hydraulic cylinder comprising feed and return hydraulic hoses, extend and retract hoses, a hydraulic pump, a directional valve and control means. The feed and return hydraulic hoses are each removeabley conne...
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WO/2018/063055A1 |
The invention relates according to a first aspect to a multi-way valve comprising a control pressure channel (5), a first control fluid channel (12) extending between a first opening (13) and said control pressure channel (5), a second c...
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WO/2018/059727A1 |
1. Valve and valve device comprising a valve of that type. 2. The invention relates to a valve comprising a valve housing (33), which has at least one service connection (A, B), a pressure supply connection (P) and a return connection (T...
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WO/2018/064148A1 |
A selector control that is manually operable by a user for activating or deactivating a primary control or a secondary control. The selector control may include a first state for activating the primary control and deactivating the second...
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WO/2018/051240A1 |
A distributor device (14) is arranged for controlling a plurality of actuators (5), each of which is intended to open or close a corresponding mould (2). The distributor device (14) comprises a rotary part (15) rotatable about an axis (R...
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WO/2018/048291A1 |
A system for controlling construction machinery comprises: a hydraulic pump; first and second actuators respectively connected to the hydraulic pump through first and second parallel lines; first and second control valves for respectivel...
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WO/2018/044099A1 |
A system for controlling a construction machine comprises: a hydraulic pump; a first and a second actuator connected to the hydraulic pump through a first and a second parallel line, respectively; a first and a second control valve for c...
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WO/2018/041494A1 |
The invention relates to a method for retrofitting a turbine system with a control unit (1) that has a main actuating drive (2) which is provided for controlling the turbine rotational speed and which comprises a main piston (3), said ma...
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WO/2018/039791A1 |
A hydraulic system includes two or more linear hydraulic actuators and is operable in, and is switchable between, a hydrostatic operating mode and a non-hydrostatic operating mode.
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WO/2018/033697A1 |
A turbo pump vent assembly and method are disclosed. The turbo pump vent assembly comprises: a primary manual actuator operable to deliver an initial volume of air to a turbo pump; and a secondary manual actuator operable to deliver a se...
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WO/2018/032017A1 |
A hydraulic actuator control system performs pressure compensation in the system by monitoring the pressure differential across a meter-out device. A flow of fluid can be directed from a pump through a meter-in device to a chamber of an ...
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WO/2018/026184A1 |
The present invention relates to a fork movement control device. The fork movement control device comprises: a first control valve unit connected to a first head port of a first cylinder by a first channel line and connected to a first t...
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WO/2018/026437A1 |
A stepper motor driven actuator system is provided. The system includes a stepper motor, a cam, and a gearbox system. The gearbox system operatively connects the stepper motor to the cam. The cam rotates in response to stepping of the st...
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WO/2018/019741A1 |
It is to provide a control valve that can make the valve body smaller and the structure simplified and the hydraulic pressure system equipped therewith. [Solution Means] The plural number of parallel feeder oil paths (21, 22) that are re...
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WO/2018/012662A1 |
A pressure-compensated load transfer device (1) according to the present invention comprises: a plate (24) having a first shaft (10) vertically installed on one side thereof and a second shaft (14) vertically installed on the other side ...
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WO/2018/001388A1 |
A high-efficiency bending machine bending method, wherein an oil inlet of an oil pump (2) is connected to an oil tank (16), an oil outlet of the oil pump (2) is connected to a P port of a three-position four-way electromagnetic reversing...
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WO/2017/182511A3 |
The invention relates to an electronic execution unit (124) for controlling and regulating a pneumatic valve assembly (VS, V, VI, WV) for a pneumatic movement, said invention being characterised in that an application (A) for controlling...
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WO/2017/219876A1 |
Provided is a differential pressure unloading safety valve, comprising a valve body (1), a valve core (2), and a valve spindle (3). The valve body (1) is provided with a liquid inlet hole (17), a first cavity (1a) and a second cavity (1b...
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WO/2017/220193A1 |
A valve apparatus for influencing a flow of medium between a supply port (38) and a pressure port (40), having a valve device (10) which, in at least one closed position, blocks the connection between the supply port (38) and the pressur...
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WO/2017/218991A1 |
A servovalve system comprising a pilot stage valve in communication with an hydraulic stage valve, the hydraulic stage valve comprising a valve member movably mounted in a valve chamber to selectively meter fluid flow in a flow path from...
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WO/2017/215631A1 |
A hydraulic cushioning device is disclosed pertaining to the field of hydraulic parts. A signal device (X) is installed at a position close to an end of a cylinder stroke to control movement of slide valves (12, 18, 12a, 12b, 12c, 12d, 1...
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WO/2017/210386A1 |
A valve assembly has a port selection assembly with an inlet fluid path and a plurality of outlet fluid paths and a servo-driven barrel. The barrel includes a slot that is aligned with the inlet fluid path. The barrel also includes multi...
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WO/2017/207130A1 |
The invention relates to an electromagnetic valve device, comprising armature elements (12, 14), which can be moved in an axial direction in response to energization of stationary coil elements (16) in order to actuate a valve slide asse...
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WO/2017/202485A1 |
The invention relates to a valve device with a pressure reducing function, consisting of at least one logic valve (V1), a blocking vale (V2) and a pressure reducing valve (V3).
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WO/2017/200450A1 |
A operator supporting electrohydraulic drive and control system based on, position sensors (8) (9), a electronic control unite ECU (2), a recovery, storing and re-use system for energy, and with actuator (3) (4) and the drive control val...
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WO/2017/193207A1 |
A pneumatic engine includes a plurality of pneumatic motors and an engine drive shaft. Each motor has a motor gas inlet, a motor gas outlet, and a rotor driven by gas flow between the motor gas inlet and the motor gas outlet. The engine ...
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WO/2017/191380A1 |
The security unit (9) ensures, by blocking the hydraulic flow, that the rod of a cylinder is held in position. It comprises two preferably twinned isolation devices (13), each mounted on one of the hydraulic lines supplying fluid to a ch...
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WO/2017/191855A1 |
The present invention provides an electrohydraulic valve apparatus for construction machinery, comprising: a valve block which comprises a first cylinder port connected to a large chamber of a cylinder and a second cylinder port connecte...
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WO/2017/186914A1 |
The invention relates to a hydraulic control module having at least two layers which are arranged on top of one another, at least one of the layers thereof having an offset. In this case, the offset layer is connected at least in some ar...
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WO/2017/186933A1 |
The invention relates to a mechatronic unit having a plurality of superimposed layers, in which at least one channel extends in a region, in which said channel runs parallel to the layers, in at least two of the layers.
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WO/2017/189551A1 |
An attachment for a tractor is disclosed, the attachment includes a rotary reducing component that includes a plurality of cutters and a hydraulic system having an activated state and a deactivated state. The hydraulic system includes an...
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WO/2017/185885A1 |
An energy-saving temperature difference energy-driven ocean profile dynamic system includes: a phase change chamber (1); a phase change hydraulic oil sac (3) disposed in the phase change chamber (1); an accumulator (16) connected with th...
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WO/2017/186930A1 |
The invention relates to a hydraulic system control plate having at least three layers, wherein an inner layer of the three layers is provided with at least one through-hole which is limited over at least a portion of its surface in the ...
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WO/2017/184651A1 |
Presented herein are systems and methods for attenuating flow ripple generated by a hydraulic pump. In certain aspects, a method and system for operating a hydraulic positive displacement pump according to a stabilized command profile ar...
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WO/2017/178272A1 |
An electropneumatic valve assembly (1) comprises an electropneumatic pilot stage with at least one pilot valve (P1) and comprises a pneumatic power stage which is actuated by the pilot stage. Here, each pilot valve switches at least two ...
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WO/2017/178546A1 |
In a load sensing hydraulic control circuit, a pressure compensator elaborates both a load sensing pressure signal to control a pump unit and a pressure compensated power flow for actuators, the power flow being either split or alternati...
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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...
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WO/2017/172746A1 |
A valve member having a supply pressure and a method of controlling the supply pressure in the valve member includes a valve body having a fluid inlet, a fluid outlet, and a controlled port. The valve member includes a spool moveable wit...
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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...
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WO/2017/168049A1 |
A fluid valve assembly (60) comprises a central bore (202) and a stem (203) axially-movable within the central bore and actuated by an axial pilot force (F_pil) and an axial counter force (F_sup). An inner supply pressure chamber (202E) ...
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WO/2017/156111A1 |
An injector control system for a coiled tubing unit includes a programmable logic controller arranged to receive a signal related to sensed parameters of a coiled tubing injection operation; a traction pressure control hydraulic circuit ...
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WO/2017/151618A1 |
A servovalve comprising a motor, a motor bias mechanism, a first stage valve having a first position, a second stage valve movable with movement of the first valve, a reference member in fluid communication with the second valve, a trans...
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WO/2017/148779A1 |
The invention relates to a device (100) for maintaining a hydraulic pressure (p), which can be set by a pressure generator (50). Said device comprises an inlet (110) for coupling to the pressure generator (50); an outlet (120) for provid...
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WO/2017/140499A1 |
The invention relates to a synchronizing cylinder (1), preferably for an extrusion plant, comprising an outer cylinder (10), an inner cylinder (20) accommodated therein and arranged concentrically thereto, a double-acting working piston ...
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WO/2017/137544A1 |
The invention relates to a proportional valve (1), having a pilot control valve (2) that can be controlled by means of a control signal and having a booster valve (3) that can be actuated by means of the pilot control valve (2). The prop...
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WO/2017/135919A1 |
Hydraulic workover system having at least two sets of hydraulic cylinders coupled with a single load. A plurality of control valves transitionable between a closed position and an open position, the plurality of control valves having at ...
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WO/2017/136644A1 |
The present invention relates to a hydraulic component (2) comprising a piston (4) and a cylinder (6) with a piston receiving space (8) in which the piston (4) is displaceably arranged while defining a chamber (22), via which a pressure ...
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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...
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