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Patent Searching and Data


Matches 1 - 50 out of 8,056

Document Document Title
WO/2019/210341A1
The invention relates to a hydraulic system, more particularly for a lifting device, comprising: - at least one piston-cylinder assembly (1) for applying a force to at least one movable component, the at least one piston-cylinder assembl...  
WO/2019/211084A1
The invention relates to a damping device for fluids affected by pressure pulsations, comprising at least one hydraulic reservoir (2), the reservoir housing (4, 6) of which contains a movable separating element (18), which separates a ga...  
WO/2019/202998A1
The purpose of the present invention is to quantitatively or qualitatively monitor bubbles included in hydraulic oil. This system for monitoring hydraulic oil is provided with: an image data obtainment unit (51) which obtains image data ...  
WO/2019/201374A1
The invention relates to a clutch slave cylinder (1) having a line (2) for supplying hydraulic medium from a clutch master cylinder or a pump, having a venting valve (3) in one of the components, wherein the venting valve (3) is held in ...  
WO/2019/198579A1
Provided is a low cost fluid pressure circuit which can, using a fixed displacement pump, smoothly control a fluid pressure actuator in response to an operation command, and which can effectively use energy. A fluid circuit (130) is prov...  
WO/2019/195351A1
A linear actuator system includes a linear actuator including an outer body, an inner body disposed within the outer body, a fluid chamber at least partially extending between the inner body and the outer body, a piston chamber extending...  
WO/2019/186483A1
A pressure regulator comprises an outlet pressure sensor (16), a loading electromagnetic valve (18), an unloading electromagnetic valve (20) and a regulator control circuit (30) operatively connected to the loading electromagnetic valve ...  
WO/2019/177279A1
An electrohydraulic control device for a construction machine comprises: a control valve, installed in a hydraulic line between a hydraulic pump and an actuator, for controlling an operation of the actuator according to the amount of dis...  
WO/2019/173227A1
Hydraulically-amplified, self-healing, electrostatic transducers that harness electrostatic and hydraulic forces to achieve various actuation modes. Electrostatic forces between electrode pairs of the transducers generated upon applicati...  
WO/2019/171547A1
Provided is a work machine capable of regenerating power from return hydraulic oil from a hydraulic actuator, and capable of preventing an increase in drag loss in a hydraulic pump and a regenerative hydraulic motor, and a decrease in th...  
WO/2019/163990A1
This hydraulic system is provided with: a running motor; a running pump connected to the running motor to form a closed-loop and driven by an engine; a working pump that is driven by the engine, suctioning suctions hydraulic oil from a t...  
WO/2019/130451A1
The purpose of the invention is to allow operability to be improved by controlling speed variations of an actuator into which a reclaimed flow flows regardless of fluctuations in the reclaimed flow due to changes in the orientation of a ...  
WO/2019/126095A1
In an exemplary method of monitoring performance of a fluid driven actuator for a valve, pressurized fluid is supplied through an actuator supply line to an inlet port of the actuator during a first time period to operate the actuator. C...  
WO/2019/115045A1
The invention relates to a compressed-air system (1) for a commercial vehicle and to a method for controlling same. Electropneumatic valves (16, 18) are controlled by at least one first electrical control signal (S1) and a second electri...  
WO/2019/115028A1
The invention relates to a compressed-air supply system for operating a pneumatic installation in a pneumatic system of a vehicle, comprising: a compressed-air feed; a compressed-air connection point to the pneumatic installation; a vent...  
WO/2019/107602A1
The present invention relates to an electrohydraulic valve actuator and, more particularly, to an electrohydraulic valve actuator having a vibration reduction device, which includes a packing between a housing and a control unit board an...  
WO/2019/108628A1
Various implementations include a fluidic oscillator having at least one control port. The at least one control port is for introducing a control fluid into the fluidic oscillator or suctioning the fluid stream from the fluidic oscillato...  
WO/2019/101601A1
The invention relates to an actuator device comprising at least one solid-state actuator (130) and a hydraulic unit (120) connected mechanically to the solid-state actuator (130) in series, wherein said hydraulic unit (120) comprises a h...  
WO/2019/101603A1
The invention relates to a switching device which comprises at least one electrical switching contact (60) and an actuator assembly (AE) designed for clamping and having a solid-state actuator (130) and a hydraulic unit (120) that is mec...  
WO/2019/103896A1
The tool assembly 10 vibrates a casing string or drill string in a wellbore. The tool assembly 10 includes a housing 20, an insert 30 mounted in the housing as a fluidic agitator, and a cover 26 fitted over the insert. The insert include...  
WO/2019/098116A1
A drive system for construction machinery comprising a control device that controls a fuel injection valve so that the actual engine speed is a set speed, a hydraulic circuit that includes a boom cylinder to which hydraulic fluid is supp...  
WO/2019/091553A1
The invention relates to a hydraulic system comprising a plurality of hydraulic units (1), which each have at least one hydraulic consumer (2) in each case having a first hydraulic connection (3) and a second hydraulic connection (4); a ...  
WO/2019/089487A1
A technique facilitates wellbore operations and utilization of wellbore equipment, e.g. equipment comprising actuation devices for downhole tools. According to an embodiment, the system comprises a pump solution for an electrically contr...  
WO/2019/083422A1
Air-drying device (1) for dehumidifying air, gas, gases or the like in containers in hydraulic systems in which a variable volume of liquid and air, gas or the like is stored. The air-drying device (1) comprising at least one cooling dry...  
WO/2019/076621A1
The invention relates to an air preparation device (1; 1') for motor vehicles with at least a first compressed air connector (2.1) and a second compressed air connector (2.2), and a first air preparation component (3.1), and a second air...  
WO/2019/072930A1
This valve (1) is intended to be mounted on a base for the purpose of controlling the distribution of a fluid, and comprises a housing (2) and a plurality of orifices (0), these orifices (0) being intended for the inflow or the outflow o...  
WO/2019/072715A1
The invention relates to an electrohydraulic system (7) with a hydraulic load (86) and at least one closed hydraulic circuit (42). The hydraulic circuit (42) comprises at least one control means (85), a hydraulic machine (25; 55), and a ...  
WO/2019/067202A1
Systems and methods may be provided to digitally control both position and crossover pressure in a double-acting pneumatic actuator, in view of constraints (e.g., a deadband range comprising a set point) set on the crossover pressure. Co...  
WO/2019/060136A1
A closed-loop hydraulic circuit (164) associated with a swing mechanism (105) of a machine is controlled to obtain both a pressure control during acceleration and deceleration of the swing mechanism (105) and a velocity control during co...  
WO/2019/058905A1
Provided is a parameter estimation method by which a physical quantity affecting the dynamic characteristics of a hydraulic system is estimated as a parameter, and which can be widely applied. This method is provided with: a step for sel...  
WO/2019/052872A1
The invention relates to a filter assembly, in particular functioning as a portable service assembly for hydraulic applications, at least consisting of a motor-pump unit (8), which is connected to a filter element (18) by an outlet (14) ...  
WO/2019/054365A1
This hydraulic drive system for a construction machine comprises: a boom control valve that is coupled to a boom cylinder by a boom lifting supply line and a boom lowering supply line; a pump that takes in a working oil through an intake...  
WO/2019/054366A1
This hydraulic drive system for a construction machine comprises: a bidirectionally tiltable pump connected to a turning motor; a regulator that adjusts the tilting angle of the bidirectionally tiltable pump; a main pump coupled to the b...  
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/2019/049436A1
According to the present invention, a controller (45) is provided with: an elapsed time measurement unit (47A) which, by means of a reset signal from a reset switch (44), measures the time (tx) elapsed since the initial use of an accumul...  
WO/2019/046927A1
The application of fluidic systems to a variety of consumer devices would typically exploit fluidic structures of a few millimeters to a centimeter or so that are between the common fluidic realms of microfluidics and macrofluidics. For ...  
WO/2019/044808A1
A cylinder device (C1) according to the present invention comprises: a cylinder (2); a rod (4) inserted into the cylinder (2); a piston (3) that is slidably inserted into the cylinder (2), is connected to the rod (4) and partitions the i...  
WO/2019/039286A1
The purpose of the present invention is to enable air in a closed-circuit oil-hydraulic drive unit to be easily bled. This hydraulic drive unit (1) is provided with a pump (12), a pair of supply and discharge lines (13a, 13b), a valve bl...  
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/2019/034551A1
A drive train module (10) for a motor vehicle is described, which drive train module (10) comprises a clutch (12) with an input region (14) and with an output region (16), wherein mutual rotational driving of the input region (14) and of...  
WO/2019/034341A1
The invention relates to a compressed air maintenance unit (1) that has at least two maintenance devices (2, 3) with a respective device housing (12) through which a device channel (18) passes. The maintenance devices (2, 3) are connecte...  
WO/2019/015109A1
The present invention belongs to the field of mechanical apparatuses, and provides a duplex oil cylinder, a crossbeam opening and closing device, a crossbeam opening and closing method, and a crossbeam opening and closing control system....  
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/2019/011859A2
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/2017/076728A9
The invention relates to a compressed air preparation device (10) for rail vehicles or utility vehicles, comprising a compressed air inlet (12), to which an air compressor (14) can be connected, a compressed air outlet (18), which is con...  
WO/2019/004156A1
This hydraulic drive system is provided with: a hydraulic motor; a bi-directional pump connected to the hydraulic motor so as to form a first closed loop and driven by an engine to supply hydraulic oil to the hydraulic motor; a first reg...  
WO/2019/000251A1
An intelligent adjustable high-pressure pump station system, comprising an oil tank (1), energy accumulators (2), and oil pumps. The oil tank (1) is connected to at least two oil pumps by means of pipelines; an energy accumulator (2) is ...  
WO/2018/228705A1
A process control device (1) is proposed which has an electropneumatic control unit (2) which is used for activating a pneumatic actuating drive (3). The control unit (2) has a fastening module (36) by means of which it is fastened to a ...  
WO/2018/229442A1
A device for penetrating into a fluid, comprising at least one profile (10), a fluid injector (14), a means for measuring the separation of the flow (18) along the profile, downstream of the injector, and an injector activity controller ...  

Matches 1 - 50 out of 8,056