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WO/2024/078774A1 |
The invention relates to a drive device with an electro-hydraulic drive (10) and a hydraulic auxiliary system (12) which generates an auxiliary torque which, if necessary, counteracts a main torque of the electro-hydraulic drive (10).
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WO/2024/067901A1 |
The invention relates to a method for detecting the correct rotational direction of a pump (100) of a hydraulic system of an actuator in a motor vehicle with a first switchable valve (300), which is actuated by means of energisation, and...
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WO/2024/062206A1 |
The invention relates to a hydraulic circuit for driving a bi-directional hydraulic actuator (200), comprising: - a hydraulic energy source (100), - a hydraulic actuator (200), - a pressure adaptation module (3000), - a first supply line...
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WO/2024/046697A1 |
The invention relates to an electrohydraulic actuator (1), comprising at least one bidirectionally operable hydraulic pump (2) for conveying hydraulic fluid, said hydraulic pump having two connection points (6a, 6b) which are designed to...
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WO/2024/023478A1 |
Disclosed is a system for driving a member (10) by means of a hydraulic circuit, comprising: a source (100) of hydraulic energy suitable for supplying a pressure in the hydraulic circuit; a driving member (200) comprising: a crankcase (2...
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WO/2023/243457A1 |
This hydraulic circuit control device comprises: a drive motor; a drive-side cylinder including a drive-side fluid chamber, and a drive-side piston moved by the drive motor; a driven-side cylinder including a driven-side fluid chamber, a...
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WO/2023/239305A1 |
The invention provides a seamless chamber actuator (100,100a,100b) which comprises a base layer (110,110a), a second layer (150,150a) and a substantially zero-volume actuation chamber (108) formed between the base and the second layers. ...
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WO/2023/239304A1 |
The invention provides a composite actuator suitable for soft robotics that performs motions which include any one of bending, twisting, and extending, or a combination thereof. The composite actuator comprises a bladder, and a skin that...
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WO/2023/222253A1 |
A hydraulic circuit for a construction machine having good energy efficiency is provided. Means for Resolution: A hydraulic circuit (2) includes a motor generator (4), a pump motor (6) connected to the motor generator (4), a boom cylinde...
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WO/2023/165929A1 |
The present invention relates to a power transmission device for continuous transmission of power comprising a pipe (12) which is filled with a gas (14) and which comprises, at the first end of the pipe, a first cylinder (7) in fluid con...
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WO/2023/165930A1 |
The present invention relates to a power transmission device for continuous transmission of power comprising a pipe (12) which is filled with a liquid fluid (14) and which comprises, at the first end of the pipe, a first cylinder (7) in ...
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WO/2023/147655A1 |
An apparatus and method for recirculating hydraulic fluid includes commanding a fluid switching valve to a first actuating position where pressurized hydraulic fluid moves a piston; detecting when the piston has completed a first stroke;...
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WO/2023/126614A1 |
The present invention relates to a hydromechanical device (102) for supplying each of two opposing active chambers (VR1CA1, VR1CA2) of a double-acting receiving cylinder (VR1) for servo-controlled operation of at least one first output r...
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WO/2023/106037A1 |
Provided is a small and low-cost hydraulic transmission.　When a fluid pressure is applied to a left driving pressure chamber 36, an internal piston 31 moves right, an operational fluid L2 in a right pressure chamber 35 is pushed out to...
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WO/2023/104478A1 |
The invention relates to a method (100) for ascertaining a reduced training data set (D 2 ) for a machine learning system assigned to a hydraulic cylinder of a working machine, in particular a mobile working machine. The machine learning...
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WO/2023/057176A1 |
The invention relates to a hydraulic compact axle (10) comprising an actuator assembly (40), a pump assembly (50; 50'), a motor assembly (80), and a volume compensation assembly (90), which are each arranged concentrically with respect t...
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WO/2023/051906A1 |
The invention relates to an actuator device (10), having two working chambers (12, 14) which are coupled to one another in such a way that a volume increase in a first of the working chambers (12, 14) is associated with a volume decrease...
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WO/2023/041473A1 |
The invention relates to a hydraulic drive system for operating a hydraulic cylinder in a first movement profile and in a second movement profile. The hydraulic drive system has a hydraulic cylinder comprising a first cylinder chamber an...
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WO/2023/041476A1 |
The invention relates to a hydraulic drive system for operating a hydraulic cylinder in a first movement profile and in a second movement profile. The hydraulic drive system contains: a hydraulic cylinder comprising a first cylinder cham...
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WO/2023/012344A1 |
The invention relates to a master piston (1) for a hydraulic vehicle brake (2), the master piston (1) comprising at least one piston element (4) and a seal which is molded onto the piston element (4). The invention further relates to a h...
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WO/2023/006454A1 |
The invention relates to a hydraulic unit (10) for providing a pressurized hydraulic fluid for driving a coupled hydraulic actuator (12), comprising: - a motor (30) which is disposed in a motor housing (28); - a hydraulic accumulator (40...
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WO/2022/248153A1 |
The invention relates to a hydraulic drive system, to a method for adjusting a delivery volume in a hydraulic drive system, and to the use of the hydraulic drive system for controlling a hydraulic cylinder. The hydraulic drive system acc...
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WO/2022/218818A1 |
The invention relates to a hydraulic drive, comprising a variable-rotational-speed drive machine (2) and a hydraulic machine (4), which is coupled to said drive machine and has a displacement volume which can be adjusted to zero and both...
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WO/2022/153687A1 |
[Problem] To provide a hydraulic control device for hydraulic work machines, a hydraulic control method for hydraulic work machines and a program which ensure sub-oil-pump responsiveness at the time of use. [Solution] A transmission cont...
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WO/2022/148668A1 |
The invention relates to a transmission unit (1), having: - a housing (2) for the fluid-tight encapsulation of at least one part of the transmission unit (1), - a rack and pinion transmission (3) which is arranged in the housing (2) and ...
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WO/2022/003043A1 |
The invention relates to a device for filling a hydraulic circuit of an electro-hydrostatic system provided with a discharge valve and a filling valve. According to the invention, the device comprises: - a vacuum generator designed to be...
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WO/2021/259981A1 |
The invention relates to a method for operating a hydraulic drive (100a), comprising a hydraulic pump (120) driven by an electric motor (10) with a variable rotational speed and comprising a hydraulic consumer (130) connected to the hydr...
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WO/2021/228308A1 |
The invention relates to a master cylinder (1) for a hydraulic release system (2) of a clutch system (3) on a motor vehicle (4), comprising a master cylinder housing (5) having a master cylinder piston (6) which is accommodated to move l...
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WO/2021/231656A1 |
A system includes a float including a drivetrain, a reaction structure coupled to the drivetrain by a tendon, and an extension spring having a first end coupled to a fixed point on the tendon and a second end configured to be disposed at...
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WO/2021/219470A1 |
The invention relates to a hydrostatic linear drive comprising a hydraulic cylinder with a working piston, on one side of which there is disposed a first cylinder chamber and on the other side of which there is disposed a second cylinder...
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WO/2021/074315A1 |
An electro-hydrostatic actuation system and a method for driving a hydraulic actuator, e.g. a hydraulic cylinder, are described, wherein the system comprising a leakage branch, and wherein preferably an additional pump is arranged. The s...
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WO/2021/063825A1 |
The invention relates to a hydrostatic fast-acting control system comprising a hydraulic cylinder, the piston of which is loaded by a pressure equivalent in the direction of a working position and can be acted upon by a pressure medium c...
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WO/2020/260124A1 |
The invention relates to a hydraulic control block for controlling a pressure medium supply of a hydraulic cylinder of a hydraulic spindle. The invention also relates to a hydraulic spindle comprising said control block.
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WO/2020/260128A1 |
The invention relates to a hydraulic control block for a servo-hydraulic axle, in particular a linear axle, at least comprising hydraulic interfaces for hydraulically connecting a hydraulic actuator of the axle and comprising a first cav...
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WO/2020/225253A1 |
The hydraulic system according to the invention comprises: a hydraulic circuit with a low-pressure region and a high-pressure region; and a volume- and/or speed-variable hydraulic machine, which is driven by a first electric motor and wh...
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WO/2020/211936A1 |
The invention relates to a hydraulic transmission unit (5) for an actuator (1), which hydraulic transmission unit can be filled with a hydraulic fluid (7) and has a first and a second chamber (11a, 11b) which are hydraulically interconne...
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WO/2020/106291A1 |
Systems, methods and devices are described providing a selective hydraulic or electrically powered prime mover that is a bi-directional power unit system, including movement within a device used to compress and/or expand a fluid and prov...
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WO/2020/082179A1 |
A mechanical transmission system that transmits motions and forces from one location to another while allowing the relative position/orientation of the two locations to change continuously is disclosed. The system can be used to actuate ...
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WO/2020/048723A1 |
In order to be able to bring about a desired state of a system quickly and reliably, the invention provides an actuator device (10), which has: an output element (12), which is able to be acted on by a fluid and as a result is movable in...
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WO/2020/040736A1 |
An actuator operable to move a valve stem between an opened position and a closed position includes a cylinder including an open side and a close side, the cylinder coupled to the valve stem, a first pump connected to the cylinder and op...
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WO/2020/035398A1 |
An electrohydrostatic actuator system comprising: a volume- and/or speed-variable hydraulic machine which is driven by an electric motor, for providing a volumetric flow of a hydraulic fluid; a differential cylinder with a piston side an...
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WO/2019/245959A1 |
The invention generally relates a linear or roto-linear actuator comprising a combination of electrical and hydraulic actuator components for providing a combined electric and hydraulic- driving force.
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WO/2019/206522A1 |
The present invention relates to a hydraulic actuating device (1; 1') for actuating a shifting element (7; 8) of a transmission, having a hydraulic cylinder (2; 2'; 3) with a piston rod (5; 6) and a piston chamber (13; 13'; 14; 15; 15'; ...
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WO/2019/162063A1 |
The invention relates to an electrohydraulic actuator (1), comprising a hydraulic piston (13), which can be moved by an electric motor (2) by means of a spindle drive (24). In order to improve the electrohydraulic actuator functionally a...
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WO/2019/138166A1 |
The present invention relates to a hydraulic assembly, in particular for a declutching control of a motor vehicle. According to the invention, the hydraulic assembly comprises a deformable flexible casing (13) defining an expansion chamb...
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WO/2019/076849A1 |
The invention relates to an actuator device (1) which comprises a) a polymer actuator (10), b) an element (20), c) the polymer actuator (20) and the element (20) being coupled so as to move together, and d) the element (20) being designe...
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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...
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WO/2019/051582A1 |
A single-rod hydrostatic actuator or pump-controlled actuator, comprises a hydrostatic pump connected in a closed circuit to a single-rod hydraulic cylinder where the cylinder velocity is directly controlled by the pump flow, without the...
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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 ...
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WO/2019/046851A1 |
The disclosed apparatus, systems and methods relate to devices, systems and methods for the selective application of down pressure or downforce to a row unit. Each row unit has a dual-action actuator which is in fluidic communication wit...
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