74 results about "Magnetic actuation" patented technology

A system for connecting a coupling cover with a hull shell can include a magnetic actuated latch. The system can include a shell architecture positioned within the hull shell. The shell architecture can include a chassis extending within the hull shell and a chassis clasp extending from the chassis. The magnetic actuated latch 205 can also include a locking plate configured to be movably coupled with the coupling cover. The locking plate can include a locking catch recess formed in the locking plate and the locking catch recess is configured to receive the chassis clasp and a magnetically responsive actuator coupled with the locking plate.

The invention relates to the technical field of medical equipment electromagnetic compatibility performance detection, in particular to a hand controller electromagnetic environment pressing experiment device which comprises a control box, a Z-axis driving mechanism, a pressing device, an X-axis driving mechanism and a Y-axis driving mechanism. Control hardware is arranged in the control box; the two X-axis driving mechanisms are symmetrically arranged, the Y-axis driving mechanisms are arranged at the output ends of the two X-axis driving mechanisms, and the Z-axis driving mechanisms are arranged at the output ends of the Y-axis driving mechanisms; and the pressing device is arranged on the output end of the Z-axis driving mechanism and is used for realizing simulated pressing operation of the hand controller key. By adopting a completely non-magnetic material and a non-magnetic actuation principle, stable operation of the detection device in an electromagnetic environment is realized, the device not only can accurately position a key of the hand controller, but also can simulate a pressing operation in a real use scene, provides reliable technical guarantee for anti-interference performance detection of the hand controller, and is suitable for popularization and application. And the blank of the application of the existing detection technology in the electromagnetic environment is effectively filled.

An electromagnetic-actuator (EA) including a coil-element (CE) having a coil-core (CC) / coil arranged about the CC-circumference. The CC has a symmetrical first-region (FR) having an axis-of-symmetry (AOS), the CC being surrounded by the coil, and a movable-magnetic-armature-body (MM AB) as a movable-actuator-element (MAE) interacts with the CE to produce an AB activation-movement, and is supported in the actuator by a bearing-device (BD) and movable from a first / second-position by activating the CE. The BD is radially-offset to the CC AOS, and the AB extends from the BD radially over the CC from a first / second-side of the CC, which has a second-region (SR) extending radially beyond the FR and is on second-side (SS) of the CC between the coil / AB in the direction of AOS such that an air-gap between CC / AB in direction of the AOS is smaller on the SS of the CC than on first-side when the AB is in first-position.

Various embodiments of a multifunctional ferromagnetic fiber robot (MFFR) are described. According to one embodiment, the MFFR includes a central core and a ferromagnetic layer around the central core. The central core can include a waveguide, an electrode, and a hollow channel in one example. The ferromagnetic layer can include magnetic microparticles distributed in a thermoplastic elastomer. The waveguide can include silica or polymer waveguides. The electrode can include high-melting-point or low-melting-point metal electrodes. The MFFR includes or exhibits magnetic actuation properties that are activated in response to an external magnetic field. The magnetic actuation properties are adjustable based on a cross-sectional geometry of the central core and a particle loading concentration of the magnetic microparticles.

Embodiments in accordance with the present disclosure relate to devices, systems, and methods for controlling the speed of a movable component in an electronic relay. In a particular embodiment, an electronic relay assembly is disclosed that includes at least one fixed contact and a movable assembly that includes a movable contact coupled to a shaft that is coupled to a plunger. In an embodiment, a plunger is disposed in an actuation channel defined by a magnetic actuation assembly and is configured to move along an actuation path. The electronic relay also includes a magnetic bridge surrounding a portion of the actuation path of the plunger.

The invention provides a mechanical safety lock. The mechanical safety lock comprises a shell; the switching mechanism is arranged in the shell and is used for being electrically connected with electrical equipment; the button component is connected with the shell, the button component can move between a stopping position and a starting position relative to the shell under the action of external force, and when the button component is located at the starting position, the button component triggers the switching mechanism and changes the electrical state of the electrical equipment; the blocking component is connected with the shell and can move between a first position and a second position relative to the shell; when the blocking component is located at the first position, the blocking component is located on a trigger path of the button component moving from the stop position to the start position, and when the blocking component is located at the second position, the blocking component is located outside the trigger path; and the starting key can extend into the shell and switch the blocking component from the first position to the second position. In the process, only mechanical motion is relied on, magnetic actuation is not needed, and therefore cost is low, and reliability is high.

The invention relates to a magnetic actuator (1) comprising: - a magnetic core (2), - a pilot coil (4), and - a housing (5), configured to form with at least the magnetic core (2) at least one magnetic circuit (6). This magnetic actuator (1) is particular in that the housing (5) has a movable section (7) that can be placed: - either in a closed position, in which the magnetic flux generated by the pilot coil (4) can be used to control the position of the magnetic core (2), - or in an open position, in which the magnetic core (2) is attracted and held in one of its extreme positions. The invention also relates to a method for disengaging a magnetic actuator (1) according to the invention, and an electrical disconnect device (12) incorporating a magnetic actuator (1) according to the invention. Figure for the abstract: Fig 5

To avoid increasing the size of the device and to protect the bearings during transportation. [Solution] The transport protection device 110 is a transport protection device 110 for a rotating machine 100, which houses a rotating body 20, bearings 35 and 36 that can contact and support the rotating body, and magnetic actuators 31a and 32a that can support the rotating body without contact by generating a magnetic attractive force that causes the rotating body to move away from the bearings, and comprises a current supply unit 201 that supplies current to the magnetic actuators when the rotating machine is being transported, thereby generating magnetic attractive forces F11 and F12 directed from the rotating body towards the bearings, and a control unit 210 that controls the current supply unit.

To provide a robot that does not pollute the environment with emitted gases, emitted particles, etc. in a vacuum.SOLUTION: A robot includes: a first device for supporting a substrate thereon; and a first transport mechanism to which the first device is connected. The first transport mechanism includes: rails or magnetic levitation guides; a magnetic system for vertically spacing the first device over the rails or magnetic levitation guide with a gap between the first device and the rails or magnetic levitation guides; and a linear actuator for moving the first device along the rails or magnetic levitation guides. The magnetic system includes: a first electromagnetic actuator at a first corner of a first side of the first device; a second electromagnetic actuator at a second corner on the first side of the first device; and a third electromagnetic actuator on an opposing second side of the first device where the third electromagnetic actuator is not positioned proximate a corner of three sides of the first device.SELECTED DRAWING: None

The present disclosure relates to a user borne device (100) for use with an electronic interactive display (200). The electronic interactive display (200) comprises a magnetically actuatable material (19A, 19B) and a plurality of magnetometers (230). The user borne device (100) comprises an elongate body (110), a magnetic object (120), and a flexible tip (130). The elongate body (110) defines a longitudinal axis (L) of the user borne device (100). The elongate body (110) comprises a proximal end (112) and a distal end (114). The magnetic object (120) is arranged between the proximal end (112) and the distal end (114). The magnetic object (120) is configured to create a magnetic field (123). The flexible tip (130) is arranged at the proximal end (112) and extends away from the proximal end (112) outside the elongate body (110). The flexible tip (130) comprises ferromagnetic material.

The present invention relates to a magnetic device with crossed magnetic fields for reducing the viscosity and deposition of crude oils and derivatives, for application in the oil sector, more specifically in the field of pipes and fluid networks. The proposed device uses permanent magnets located outside the tube, oriented in the "North-South" and "East-West" directions, with the advantage of operating with a radial magnetic flux oriented towards the centre of the tube, ensuring orthogonality between the fluid flow and the direction of the magnetic field. The magnetic cross-field actuation device (DMCC) comprises a central tube (1), preferably made of stainless steel; a casing (2), preferably made of stainless steel; and a plurality of magnets (3), preferably made of rare-earth metals.

The actuator comprises a movable armature (2) rotating relative to a stator (1) having flanges (3a, 3b) on which magnets (5a, 5b) are mounted, a coil (9a, 9b) being mounted around one of the flanges (3a). The magnets (5a, 5b) have an axial magnetization in the z-axis and are aligned in the x-axis. The movable armature (2) is arranged between the magnets (5a, 5b) in the x-axis. The movable armature (2) is mounted on a guide (11) rotating around a y-axis perpendicular to the x- and z-axes. The movable armature (2) is separated from the magnets (5a, 5b) by air gaps (6a, 6b). Each magnet (5a, 5b) forms a static magnetic circuit (8a, 8b) with one end (2a, 2b) of the movable armature (2) and one of the flanges (3a, 3b). The coil (9a, 9b) forms a dynamic magnetic circuit with the ends (2a, 2b) of the movable armature (2) and the flanges (3a, 3b).

The application provides an electromagnetic actuating device and a camshaft phase adjustment device. The electromagnetic actuating device comprises a housing (H) and at least one execution unit. The execution unit comprises an electromagnet (10) and a pin partially extending out of the housing (H) and used to reciprocate in an axial direction (A) under the drive of the electromagnet (10). The execution unit further comprises a magnetic element and a magnetic field detection device used to detect the position of the pin. The magnetic element and the magnetic field detection device are both arranged stationary relative to the housing (H). The pin is arranged axially spaced from the magnetic element during the movement away from or close to the magnetic element and affects the magnetic field around the magnetic element. The magnetic field detection device is used to detect the change of the magnetic field signal around the magnetic element so as to determine the position of the pin in the axial direction (A). The electromagnetic actuating device according to the application is simple in structure and high in reliability.

A control system for controlling a magnetic suspension system includes sensors configured to produce position signals indicative of a position of an object to be magnetically levitated, and a controller configured to control, in accordance with the position signals, electric currents supplied to magnetic actuators of the magnetic suspension system to magnetically levitate the object. The control system includes a computing system configured to maintain and update a computational model of the magnetic suspension system based on identification runs where identification run signals are supplied to the magnetic actuators of the magnetic suspension system and responses to the identification run signals are detected from the sensors and / or the magnetic actuators. The computing system is configured to compare quantities related to the computational model to quantities related to the magnetic suspension system to reveal deviations from the expected operational conditions of the magnetic suspension system.

Chain assemblies and related methods for the facilitation of installation, repair, and disassembly include clearance fits, instead of interference fits, with other retaining elements. Various types of retaining elements are contemplated, such as retaining rings, snap rings, threaded nuts, or locking mechanisms that may secure the pin in an axial position relative to the outer sidebars during operation. When disassembly is desired, the retaining elements may be removed to allow the pin to be withdrawn without requiring excessive force or specialized extraction tools. Some embodiments can provide outer bushings positioned within the outer sidebars. Other embodiments may provide a locking mechanism including a biasing element that urges a retaining member into engagement with the outer bushing to secure the axial position of the pin. Still other embodiments can provide a detent pin that may be directionally magnetized to allow magnetic actuation by an external magnetic tool.

A hydraulic system includes an outer magnetic coupler positioned about an inner magnetic coupler, a motor having a shaft configured to rotate the outer magnetic coupler, and a drive shaft longitudinally movable via rotation of the inner magnetic coupler. A poppet valve is configured to unseat from a sealed state in response to longitudinal movement of the drive shaft. The rotation of the outer magnetic coupler causes rotation of the inner magnetic coupler.

The present invention relates to a method for controlling a fuel injector (1) of an internal combustion engine with a magnetic actuator (10) for actuating an outwardly opening valve element (4, 6), wherein the magnetic actuator (10) has a magnetic coil (3) and a magnetic armature (2) which is operatively connected to the valve element (4, 6), and the magnetic coil (3) is configured to be supplied with a current in order to open the valve element (4, 6), the method comprising determining a target control end and a target control duration of the magnetic actuator (10) based on a target control start of the magnetic actuator (10) and a target fuel quantity; determining a cylinder pressure expected to act on the valve element (4, 6) at the target control end of the magnetic actuator (10);Determining the expected stroke profile of the valve element (4, 6) during a holding current phase of the solenoid coil (3) as a function of the determined cylinder pressure expected to act on the valve element (4, 6) at the target actuation end. If the expected stroke profile exhibits a maximum stroke of the valve element (4, 6) during the entire holding current phase of the solenoid coil (3), the solenoid actuator (10) is actuated with the determined target actuation duration and the determined target actuation start time. If one or more values ​​of the expected stroke profile during the holding current phase of the solenoid coil (3) are less than the maximum stroke of the valve element (4, 6), the determined target actuation duration and / or the determined target actuation start time are adjusted, and the solenoid actuator (10) is actuated with the adjusted target actuation duration or the adjusted target actuation start time.

The invention discloses an electromagnetic valve and a shock absorber. The electromagnetic valve comprises a main valve element (19), a pilot valve element (11), a pilot overflow valve needle (12), a first elastic piece (16), a second elastic piece (17) and a magnetic actuator. The main valve element (19) is provided with an overflow channel (15) and a pilot channel (14). When the magnetic actuator is in a power-off state, the acting force of the magnetic actuator disappears, and the pilot valve element (11) moves in the direction away from the pilot overflow valve needle (12) under the elastic force effect of the second elastic piece (17). The displacement of the pilot overflow valve needle (12) is jointly acted by the medium pressure in the first elastic piece (16) and the pilot channel (14), and the acting force directions of the medium pressure in the first elastic piece (16) and the pilot channel (14) are opposite, so that when the medium pressure in the pilot channel (14) reaches a threshold value, the elastic force of the first elastic piece (16) can be overcome, the pilot overflow valve needle (12) is pushed to move to a second conduction position, and the pilot overflow valve needle (12) is stopped from moving. And therefore, the overflow channel (15) is communicated, the pressure in the control cavity is reduced, and the main valve core (19) is in an open state. The electromagnetic valve and the shock absorber work normally under the condition of power failure, and due to the fact that a side channel and a side armature do not need to be arranged, the structure is simplified.

The invention relates to a method for controlling a fuel injector of an internal combustion engine, a fuel system and a computer program for carrying out the method. The method comprises the following steps: determining a target control end time and a target control duration of the magnetic actuator based on a target control start time and a target fuel quantity of the magnetic actuator; determining a cylinder pressure acting on the valve element at a target actuation end time of the magnetic actuator; determining a valve element stroke according to the determined cylinder pressure; if the determined stroke of the valve element at the target actuation end time corresponds to its maximum stroke, the magnetic actuator is actuated with the determined target actuation duration and the determined target actuation start time, and if the determined stroke of the valve element at the target actuation end time is less than the maximum stroke of the valve element, the magnetic actuator is actuated with the determined target actuation duration and the determined target actuation start time. If so, adjusting the determined target control duration and / or the determined target control start time, and controlling the magnetic actuator with the adjusted target control duration or the adjusted target control start time.

The disclosure relates to a sample treatment apparatus (200). More particularly it relates to a sample treatment apparatus comprising a holder (204) configured to receive a sample vessel (300) containing a treatment body (500); and a magnetic actuator (400) configured to generate a moving magnetic field for manipulating the treatment body. Also described herein is, a treatment body for mechanical agitation of a sample and suitable for use in a sample treatment apparatus, and a sample treatment system (100) including the sample treatment apparatus.

A system for connecting a coupling cover with a hull shell can include a magnetic actuated latch. The system can include a shell architecture positioned within the hull shell. The shell architecture can include a chassis extending within the hull shell and a chassis clasp extending from the chassis. The magnetic actuated latch 205 can also include a locking plate configured to be movably coupled with the coupling cover. The locking plate can include a locking catch recess formed in the locking plate and the locking catch recess is configured to receive the chassis clasp and a magnetically responsive actuator coupled with the locking plate.

A keyswitch for a keyed device, the keyswitch comprising: a housing with an inner structure defining a cavity within; a plunger protruding from a top side of the housing and extending into the cavity, the plunger operable to be depressed and travel along a linear range of motion within the cavity of the housing; a slug comprised of magnetic material and configured at a bottom section of the cavity; and a conductive coil, wherein the conductive coil is operable to generate a magnetic field in response to receiving an electrical current, the magnetic field operable to magnetically move the slug within the cavity causing the slug to impact a portion of the housing or the plunger, wherein the impact causes a feedback effect that mechanically translates through the keyswitch.

To provide an electromagnetic actuator capable of simplifying a structure, reducing frictional resistance or the like without increasing the number of components, and ensuring a desired operation by surely interlocking a shaft with a movable element.SOLUTION: The electromagnetic actuator includes a solenoid unit (U) including a movable member (70) configured to reciprocate along an axis (S), a stationary member (30405060) forming a magnetic path, and an exciting coil (80), a cylindrical shaft (90) configured to move integrally with the movable member (70), and a guide member (100) configured to reciprocatably guide the shaft (90), wherein the shaft (90) is made of a non-magnetic material and is connected to the movable member (70) with predetermined play margins (C1, C2, C3).SELECTED DRAWING: Figure 6

An electromagnetic actuator supports a body, and has an axial actuator target affixed to the body and a stationary axial control pole assembly. The pole assembly has first and second axial control poles both residing entirely radially outward from the body and both separated from the axial actuator target by radial air gaps. The axial control poles reside adjacent end-facing surfaces of the axial actuator target to communicate magnetic flux with the end-facing surfaces. The axial control poles are magnetically coupled with the axial actuator target to define an axial magnetic control circuit. The actuator has an axial control coil configured to induce an axial control magnetic flux in the axial magnetic control circuit when energized. A permanent magnet is affixed to the body to induce a bias magnetic flux between the axial actuator target and the axial control pole assembly.

To provide an electromagnetic actuator capable of reducing a cost and a resistance load, and ensuring a desired operation by surely interlocking a shaft with a movable element.SOLUTION: A linear motor includes a solenoid unit U including a mover 70 that reciprocates along an axis S, a stator 30,40,50,60 that forms a magnetic path, and an excitation coil 80, a housing H that houses the solenoid unit except for a part 60 of the stator, a front yoke 60 that forms a part of the stator and is joined to the housing, a shaft 90 that moves integrally with the mover, and a guide member 100 that is fixed to the front yoke and has a guide passage 102,104 that guides the shaft in a freely reciprocating manner. The front yoke 60 is a drawn product formed by drawing so as to define a cylindrical part, and the guide member 100 is a sintered product formed by sintering so as to be fixed to the cylindrical part.SELECTED DRAWING: Figure 7

Provided is a magnetic actuation system controlling a magnetic microrobot, a magnetic actuation catheter, or a guide wire by using a magnetic field, and more particularly, a magnetic actuation system compatible with a C-arm that is applied to the C-arm, which is a mobile X-ray fluoroscopy device, in order to enable control of the microrobot or a catheter treatment in a human body by using the C-arm.

Actuator arrangement (10) for an electromagnetically actuated valve (42, 66, 72), comprising: - a housing with a first housing wall (12) and a second housing wall (14) opposite the first housing wall (12), - a magnetic armature (16) arranged in the housing between the first housing wall (12) and the second housing wall (14), which is movable between the first housing wall (12) and the second housing wall (14) along an axis (18), wherein the magnetic armature (16) has a first axial armature end face (20) facing the first housing wall (12) and a second axial armature end face (22) facing the second housing wall (14), and the magnetic armature (16) is movable between a first position in which the first armature end face (20) contacts the first housing wall (12) and a second position in which the first armature end face (20) is detached from the first housing wall (12), - at least one damping element (24, 24A, 24B) made of an elastomeric material arranged on the second armature end face (22) and extending from the second armature end face (22) in the direction of the second housing wall (14), wherein the at least one damping element (24, 24A, 24B) contacts the second housing wall (14) both in the first position and in the second position of the magnet armature (16), and - a stop element (26) made of an elastomeric material, arranged on the second armature end face (22) and extending from the second armature end face (22) in the direction of the second housing wall (14), which stop element is detached from the second housing wall (14) in the first position of the magnet armature (16) and contacts the second housing wall (14) in the second position of the magnet armature (16), - wherein the second housing wall (14) has a fluid opening (56) extending through the second housing wall (14) and the stop element (26) in the second position of the magnet armature (16) contacts a sealing seat of the fluid opening (56) in a fluid-tight manner.

The invention relates to a gas injector for blowing gaseous fluids, comprising a valve housing, a closing element (2) for opening and closing a through-opening (3) to a sealing seat (4), a magnetic actuator (5) with a coil (52), an armature (50) and an inner pole (51), and an electrical contact assembly (6) which is designed as an electrical contact for the magnetic actuator (5), wherein the electrical contact assembly (6) has an electrical contact bridge (60), an attachment line (61) and an attachment plug with electrical plug contacts. According to the invention, in the region of the valve housing there is arranged a diffusion device, in particular a diffusion pin (62), which enables diffusion of the gas.