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WO/1996/022466A2 |
A hydraulic actuator (10) which controls the operation of a cylinder valve having a valve seat (11), and a valve element (12) which is linearly reciprocable between open and closed positions with respect to valve seat (11), a valve seal ...
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WO/1996/012108A1 |
Hydraulic operating device, in particular for the operation of a selector fork (40) of a gearbox, and gearbox provided with such an operating device. The device comprises a double-acting cylinder (1), which is coupled to the selector for...
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WO/1995/028588A1 |
A precompression valve for a hydraulic clutch actuating device in a motor vehicle has a first union (3) for a master cylinder and a second union (4) for a slave cylinder, in which, in the event of a pressure drop from the first (3) to th...
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WO/1995/028589A1 |
To fill a vehicle's hydraulic clutch actuator with hydraulic fluid, the actuator's pressure valve has a holding device that keeps a closure body (21) at a distance from its closure seat (19). To ensure repeated use of the holding device,...
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WO/1995/014174A1 |
A device for double-acting hydraulic systems with a slave cylinder (1) and a master cylinder (72) whose piston (76) can be moved to a position, wherein fluid can flow both ways between a master cylinder space (73, 74) and a reservoir (92...
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WO/1995/011139A1 |
A vehicle convertible top (16) is moved by hydraulic cylinders (29) between extreme raised and lowered positions. The cylinder ends are connected (26, 28) to ports (60, 60') in a reversible hydraulic pump (36) in one end of an elongated ...
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WO/1995/008715A1 |
The present invention relates to a hydraulic supply device for a double acting cylinder (1) comprising an electrohydraulic generator (5) supplying oil under pressure to the cylinder (1) through a line (15) and a distributor unit (12), ch...
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WO/1993/014963A1 |
A hydraulic master cylinder and reservoir assembly having a master cylinder body (11) with a fluid reservoir (12), and a master cylinder bore (18) with a piston assembly (35) sealingly reciprocal within the bore. The fluid reservoir (12)...
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WO/1992/008914A1 |
A gear shift device for gearboxes for vehicles, comprising at least one pair of mutually connected, double-acting hydraulic cylinders (1, 2), where the pair consists of a master cylinder (1) and a slave cylinder (21). The master cylinder...
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WO/1992/002732A1 |
The invention concerns a master cylinder for hydraulic systems, in particular brake systems. The aim of the invention is to reduce the return stroke of the piston (3) conditioned by a compensation aperture (7) in the cylinder wall (1). T...
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WO/1992/002107A1 |
An actuator having a linear current force characteristic comprises a moving coil transducer and a hydraulic lever. The moving coil (9) is capable of producing only a relatively low force but with a relatively large displacement. The coil...
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WO/1992/000460A1 |
Described is a device for driving a tool in the longitudinal direction to carry out an oscillatory back-and-forth motion, the tool working with high efficiency at high oscillation frequencies and being usable as an easy-to-handle hand to...
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WO/1991/011621A1 |
The master cylinder comprises a body (10) formed with a bore (13), a piston (19) slidable in the bore to discharge hydraulic working fluid from the bore and an annular reservoir (17) for communication with the bore (13) and which is conc...
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WO/1990/000994A1 |
Master and slave cylinders (10, 45) are provided interconnected by a conduit (46). The master cylinder (10) includes a piston (19) movable in a cylinder (11) which defines a pressure chamber (82) arranged to be placed under pressure by t...
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WO/1989/011040A1 |
The actuator comprises a clutch pedal lever (12) which is pivotally connected to a support (17). The pedal is integral with a cylinder (18) having a piston (20) therein which is connected to a hollow pushrod (28). The pushrod is also piv...
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WO/1989/002813A1 |
In a device for fastening perforating rules or blades on rolls (perforating cylinders) in printing machines, the perforating cylinder (26) has at least one receiver groove (25) for a perforating rule (11) in which a clamping strip (10) p...
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WO/1988/009734A1 |
The hydraulic actuator comprises a hydraulic master cylinder (12) having an outlet (12e) for connection to a slave cylinder (14) through a working fluid conduit (15) and an inlet port (12d) for connection to the outlet port (23) of a res...
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WO/1988/008801A1 |
The assembly comprises a piston (18) made of plastics material and which is slidable axially in a cylinder (16). The piston has an axially extending socket (18f) in an end thereof made of metallic material which locates a piston rod (21).
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WO/1988/008800A1 |
A master cylinder (12) includes a piston (30) slidable within a pressure chamber (28b) and a valve assembly (36) for permitting an inhibiting communication between the pressure chamber (28b) and a reservoir. The valve assembly (36) inclu...
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WO/1988/002322A1 |
The device comprises a manipulator (148) of which the body (149) houses position-emitting deformable pockets (155-157) connected each by means of a hydraulic circuit corresponding to a deformable pocket-type position receiver (130-132, 1...
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WO/1987/007927A1 |
Fluid transmission with primary working cylinders (1, 2) and secondary working cylinders (3, 4) in which are arranged working pistons (6, 7, 8, 9) that effect translatory movements. The working cylinders are connected in pairs via pressu...
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WO/1987/003850A1 |
A hydraulic master cylinder (10) formed by telescopically fastening together a pair of cylinder housings (30, 34) to form a cylinder. A piston (64) in the cylinder is operative to transfer hydraulic fluid to a slave cylinder (15) connect...
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WO/1985/000148A1 |
Hydraulic power transmission device (1) adapted to form part of a control system at which the pressure of a hydraulic fluid (6) is controlled at one or more points of the control system by fluid pressure actuated members and in which cha...
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WO/1985/000203A1 |
A valve system for gas or liquid, comprising a hydraulic power transmission (19) where the pressure of hydraulic fluid is controlled by fluid pressure actuated members (15) and the changes of the fluid pressure actuate operative members ...
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WO/1984/002302A1 |
Movable link device with a plurality of freedom degrees between a carrier element (manipulator arm or the like) and a carried element (tool, and particularly gripping tool). The device comprises a support frame (1) adapted to be secured ...
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WO/1983/003643A1 |
a) Hydraulic servo motor comprising a jack (1, 14) intended to be connected by its rod (31, 32, 151) to a moving member to be displaced and accurately positioned, said jack being completely filled with liquid; b) servo motor characterize...
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WO/1981/000599A1 |
A hydraulic circuit (32), for example, remotely controls a work element (14) and contains first apparatus (34), such as a master cylinder (42), which passes a fluid signal through a first or second fluid pathway (38, 40) in response to a...
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JP7443505B2 |
Aspects of the disclosure relate to methods, apparatus, and systems for actuating a soft robot. An actuation system includes a camshaft, a motor configured to drive the camshaft to rotate around a rotational axis, and an air bladder conf...
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JP7411123B2 |
A hydraulic control device for a hydraulic actuation machine including a main oil pump configured to supply oil to the hydraulic actuation machine, a sub oil pump configured to temporarily supply oil to the hydraulic actuation machine ba...
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JP7401373B2 |
To provide a hydraulic drive device capable of suppressing an oscillation phenomenon to perform stable position control.A hydraulic actuator 11 generates a thrust for moving a positioning target. Hydraulic oil supply systems 21, 22 suppl...
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JP7379644B2 |
In one aspect, an actuator for actuating a device comprises driving means adapted to be operatively connected to the device, and operable to receive a reaction element for engaging the device. The driving means further comprises an outpu...
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JP7372189B2 |
To provide a hydraulic drive position controller capable of shortening a time from start of control for controlling a positioning target to start of actual movement.A hydraulic actuator 11 generates a thrust for moving a positioning targ...
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JP7264591B2 |
A pressure generating device may comprise a piston-cylinder unit having a bilaterally acting piston with two effective surfaces defining two respective, separate working spaces in a sealing manner. Each working space is connected via a h...
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JP2022159168A |
To provide an artificial muscle and a method for actuating the artificial muscle.An artificial muscle includes: a housing having an electrode region and an expandable fluid region; a dielectric fluid accommodated in the housing; an elect...
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JP2022159157A |
To provide an artificial muscle drive unit, and a method for operating the artificial muscle drive unit.An artificial muscle drive unit comprises a base and an artificial muscle arranged on the base. The artificial muscle comprises an ex...
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JP6931386B2 |
{Technical Problem} Provided is fluid equipment capable of enhancing operability of a moving member in a container.{Solution to Problem} Fluid equipment 1 includes a container 2 capable of having first and second fluids F1, F2 housed the...
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JP6865990B1 |
To reduce the size and weight of a fluid actuator. It has a rubber shallow dish-shaped first elastic film body 3 and a second elastic film body 4, and also has a hard shallow dish-shaped first cup 1 and second cup 2. The first elastic fi...
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JP6831850B2 |
A hydraulic working occupation apparatus includes: a hydraulic forming mechanism; an output element; a ball elbow mechanism connected to the hydraulic forming mechanism; and an occupation piston sleeve (25) connected to the ball elbow me...
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JP6728145B2 |
An injection molding system, water jet cutting machine or other industrial system has a synthetically controlled variable displacement fluid working machine which outputs hydraulic fluid to one or more fluid consumers, such as rams or hy...
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JP2020051556A |
To prevent belt holding pressure from decreasing in a process of suppressing hydraulic vibration.A hydraulic control device according to the present invention is a hydraulic control device that suppresses hydraulic vibration generated in...
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JP2020051557A |
To detect hydraulic variation in its early stage.A hydraulic control device according to the present invention is configured to control hydraulic pressure of a hydraulic circuit to target hydraulic pressure, and comprises: a hydraulic de...
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JP6511010B2 |
A piston accommodated in an internal space of a cylinder and forming a pair of pressure chambers together with the cylinder, the piston being configured to move relative to the cylinder; a first actuator connected to one pair of pressure...
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JP6448764B2 |
The hydraulic actuator comprises: a hydraulic input cylinder having an input piston; a hydraulic output cylinder, which is hydraulically coupled to the input cylinder; and a pressure-limiting valve, which limits the output cylinder with ...
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JP6261715B2 |
The embodiments relate to an actuator device including a drive unit and an output unit. The output unit includes a first translation unit having a first output and a second translation unit, connected in a fluid manner to the first trans...
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JP6178716B2 |
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JP6000444B2 |
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JP5886621B2 |
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JP5129643B2 |
A hydraulic drive and fluid control system for a mechanism having at least two fluid actuated cylinder includes a bi-directional motor (38)/gear pump (42). A monolithic block manifold (36) has intersecting bores formed therein in which v...
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JP5126947B2 |
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JP2012247040A |
To provide a driving system of high energy efficiency, capable of restraining a facility cost from getting high, by utilizing an existing facility at the maximum.An air cylinder 10 is stored with a piston 102 in an inside of a cylinder 1...
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