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WO/2011/157462A1 |
The invention relates to a piston-cylinder unit (100) in the form of a switchable stepped cylinder, comprising: a first piston (22) having a first piston rod (24), a second piston (23) having a second piston rod (31) in the form of a fir...
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WO/2011/150990A1 |
The invention relates to a device having a pneumatic actuating cylinder (1), wherein the actuating cylinder (1) has at least one pneumatic piston (2) and a brake element (15) which can be actuated in an arbitrary manner and which is conn...
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WO/2011/141423A1 |
The present invention relates to a method for operating a hybrid drive (30) and to such a hybrid drive. The hybrid drive comprises an electric motor (1), which is coupled to a hydraulic drive (2) having a double-acting hydraulic piston (...
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WO/2011/141090A1 |
The invention relates to a pressure medium cylinder having end-position damping, comprising a piston (3), which is arranged in a cylinder housing (1) and can be exposed to pressure medium at least on one side and bounds at least one pres...
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WO/2011/138102A1 |
A device (1) is described for determining an operating state of at least one bidirectionally actuable hydraulic adjusting device (2, 3) of a shifting element (4, 5) of a transmission device which can be subjected to hydraulic pressure (p...
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WO/2011/138553A1 |
The present invention relates to a triggered-stroke actuator (10) which comprises a body (12) housing a mobile assembly (18) including a piston (20) and a rod (22); means (24) for propelling said assembly in response to a triggering comm...
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WO/2011/138755A1 |
A method to determine a position of a piston (4) reciprocating inside a hydraulic cylinder or a pneumatic cylinder 81) between a first end position (5) and a second end position (6), the piston parts the hydraulic cylinder or the pneumat...
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WO/2011/138136A1 |
A camshaft adjuster (2) having a vane-type design comprises a stator (4) and a rotor (6), which can be rotated relative to the stator (4), and at least two pressure chambers (8a, 8b) formed between the stator (4) and the rotor (6). The p...
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WO/2011/135079A2 |
The present invention relates to an actuator system comprising one or more expansion chambers comprising one or more cylindrical chambers serially connected through a connection channel. The present invention further relates to the use o...
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WO/2011/135864A1 |
A valve actuator opens or closes a valve in such a way that a first spring seat (14) and a second spring seat (32) move close to, or away from, each other. The valve actuator is provided with a first coil spring (51), a second coil sprin...
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WO/2011/131195A1 |
In the use of a backhoe digger an indication of the precise depth of the bucket is required. This may be done by measuring the angles and extensions of the elements of the backhoe and calculating the result. This is commonly done by mean...
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WO/2011/130863A2 |
The invention relates to a hybrid working cylinder (1) which may be a hydraulic or pneumatic or electric working cylinder or rotary drive and a gas spring (8) assists the stroke (H) of a piston rod (5) in a power direction and, if requir...
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WO/2011/129642A2 |
A test for operation over an extended period was performed on a high-power swing pump in which an independent seal device was employed, and a swing vane pump of a high-efficiency, pendulum-type wave power generating system was applied to...
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WO/2011/128345A1 |
The invention relates to an assembly comprising an electropneumatic positioner (3), a shut-off device (1) and a pneumatic drive (5, 70). The shut-off device (1) is arranged in a "sandwich" design between the positioner (3) and the drive ...
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WO/2011/126378A1 |
A device for a valve actuator (1) is described, the valve actuator (1) being provided with a slide nut (5C) surrounding a portion of an actuator slide (3B) and being in engagement with an external threaded portion arranged on the actuato...
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WO/2011/124123A1 |
A composite oil cylinder includes a cylinder body (1), a first-stage piston rod assembly (2) and a second-stage piston rod assembly (3), wherein the first-stage piston rod assembly (2) separates an inner cavity of the cylinder body (1) i...
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WO/2011/116702A1 |
Disclosed are tandem hydraulic cylinders and a stroke control device and a method thereof. The tandem hydraulic cylinders comprise a first hydraulic cylinder (12) having a piston rod (125) which is capable of moving reciprocatively and a...
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WO/2011/116877A1 |
The invention relates to a device for locking an axially movable component (2) of a hydraulic system, wherein the axially movable component (2) can be detachably fixed in a positively locking manner in at least one axial position by mean...
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WO/2011/113413A1 |
The invention relates to a polymer-based carrier system for flexible or rigid solar cells for self-sufficient and optimal current generation, with compressed air technology and sensor technology. According to the invention, by means of a...
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WO/2011/116054A1 |
A method of forming a position measurement system (10) includes melting a surface (20) of a substrate (12) formed from a first material, wherein the surface (20) defines at least one groove (22) therein and wherein the surface (20) is me...
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WO/2011/111488A1 |
A piston is housed in a cylinder tube, which has a central axis and an inner circumferential surface facing the central axis. The piston is configured from a first piston component and a second piston component, which join in the central...
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WO/2011/110426A1 |
The invention relates to a pneumatic brake booster for a motor vehicle brake system, having a booster housing (1) which is divided by at least one axially movable wall (3), which can be acted on with a pneumatic differential pressure, in...
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WO/2011/111090A1 |
Disclosed is a westgate actuator comprised of an actuator main body (3) and a motor main body (4), which are detachably connected by abutting the end face of an actuator shaft (1) to the end face of a motor shaft (2). The actuator main b...
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WO/2011/104831A1 |
Disclosed is an internal combustion engine control device which prevents damage to an actuator diaphragm at high temperatures and increases the heat resistance thereof. A valve actuator (30) is equipped with a communicating aperture (76)...
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WO/2011/105952A1 |
An arrangement for moving a piston (12) in a compressed air cylinder (10), which arrangement comprises: a compressed air cylinder (10); a valve device (17); a compressed air device; a control unit (30); and an aperture (20) in the cylind...
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WO/2011/098056A1 |
The aim of the invention was to create a principle structure of an actuator that corresponds to the motion behavior of a natural muscle in regard to elasticity and load dependence and that can be technically implemented with the least po...
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WO/2011/099402A1 |
A piston of a fluid pressure cylinder is provided with a seal ring which is fitted into a seal ring holding groove; piston rings each of which has a cut-off section, and which are fitted into piston ring holding grooves in a piston; and ...
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WO/2011/095350A1 |
The invention relates to a fluid-actuated actuating drive (1) on a valve, in particular a shut-off, safety or regulating valve, comprising a base unit (2) having control valves, two linear actuators (6, 7) which are located opposite of e...
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WO/2011/095230A1 |
The invention relates to an apparatus for controlling rolling movement of a cylindrical object (1). The apparatus comprises at least one flexible member (2) which is to be filled with a fluid, which has a first end (21) and a second end ...
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WO/2011/090063A1 |
Disclosed is a rotation drive device configured by comprising a plurality of rotation units each of which changes, by means of a fluid cylinder, the radial position of a weight with respect to the rotational axis, thereby obtaining a rot...
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WO/2011/086638A1 |
An abnormality determining means (104) for determining whether or not output measuring means (103, 8) are abnormal, is installed to determine abnormalities of the abnormality determining means. When either of the output measuring means i...
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WO/2011/081722A1 |
Apparatus to increase a force of an actuator having an override apparatus are described herein. An example fluid control system includes a first fluid control apparatus to fluidly couple a control fluid supply source to a control actuato...
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WO/2011/080200A1 |
The invention relates to a method for determining the position of a piston of a piston cylinder, wherein a microwave transmission signal is emitted in the direction of the piston, and microwaves reflected by the piston are detected, allo...
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WO/2011/072503A1 |
An integrated electro-hydraulic servo actuator comprises a hydraulic locking valve group with a position for locking a hydraulic cylinder, wherein two inlets of the hydraulic locking valve group are connected to two oil ports of a bidire...
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WO/2011/075034A1 |
Energy efficient hydraulic cylinder (1) including a cylinder housing (2), with a cylindrical inner chamber and in it a movably arranged first piston (3) which separates the hydraulic cylinder into at least one first chamber (9) and one s...
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WO/2011/072502A1 |
An integrated electro-hydraulic actuator comprises a hydraulic locking valve group with a position for locking a hydraulic cylinder, wherein two inlets of the hydraulic locking valve group are connected to two oil ports of a bidirectiona...
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WO/2011/072759A1 |
The invention relates to a locking device for hydraulic cylinders such as actuators for working equipment and/or working and/or auxiliary cylinders for vehicle steering systems, both ends of the piston of the cylinder adjoining pressure ...
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WO/2011/068580A1 |
A system, in certain embodiments, includes an accumulator (12). The accumulator includes a first cylinder (58) configured to receive a fluid within an internal volume of the first cylinder. The accumulator also includes a piston (56) con...
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WO/2011/066466A2 |
A fluid-powered rotary actuator having a body with a shaft disposed therein and having a linear-to-rotary torque transmitting member mounted for longitudinal movement within said body in response to the selective application of pressuriz...
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WO/2011/063321A2 |
An indicator device for a piston and cylinder assembly has an indicator pin with a distal end indicator section for extending out of a side wall of a piston cylinder assembly when the piston and rod assembly is not at the end of its retu...
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WO/2011/060876A1 |
The invention relates to a crust breaking device for metal melts, comprising a pneumatic cylinder (1) having a cylinder housing (2), a piston (3), which is axially displaceable within the cylinder housing (2), a piston rod (4), which is ...
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WO/2011/059052A1 |
Disclosed is a seal structure of a fluid device (1), said seal structure being provided with: a first member (2) which defines a hollow interior area (1a) of the fluid device (1); a second member (3) which, together with the first member...
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WO/2011/057542A1 |
A multi-way valve includes a plurality of parallel combination valves for controlling corresponding actuators (4-1-4-5). Each combination valve comprises a proportion throttle valve (2-1-2-5) and a reversing valve (3-1-3-5). An oil inlet...
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WO/2011/057493A1 |
A hydraulic system for a rotary drilling rig includes a main hydraulic circuit, which includes a hydraulic pump (3), a hydraulic execution component (140) and a reversing valve (9) connected between the hydraulic pump (3) and the hydraul...
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WO/2011/055750A1 |
Provided is a rotation actuator which can control rotation with high precision while maintaining the high torque property, specifically, a rotation actuator suitable for controlling the rotation of various kinds of valves. A rotation str...
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WO/2011/056818A1 |
A two-piece collar (10) is rigidly clamped onto the hydraulic driver shaft (12) via two shoulder bolts (14). The collar halves (16) engage a tightly toleranced groove feature (18) on the spool (20) that is assembled onto the linear senso...
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WO/2011/056245A1 |
A compact force multiplying actuator 10 and its associated valve 20 are disclosed. The actuator 10 and valve 20 include piston heads 31 and 32 and force multiplying load beams 52 and 53. Belleville springs 81 and 82 are disposed axially ...
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WO/2011/054394A1 |
A linear actuator 200 comprising a plurality of actuation cells 204 arranged between a first and a second attachment points 201, 202, each actuation cell 204 being configured to shorten when the volume of the actuation cell 204 is increa...
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WO/2011/053162A1 |
A protective device (20) is described, for use as a protective sleeve around a portion of a piston rod (5) which projects from a cylinder casing (3) of a fluid cylinder (1), the protective device (20) being provided with a first end port...
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WO/2011/050969A2 |
A fluid operated actuator (100) is provided. The fluid operated actuator (100) includes a body (101) forming a piston bore (201). A piston (111) is movable within the piston bore (201). The fluid operated actuator (100) also includes a v...
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