90 results about "Solenoid actuator" patented technology

Systems and methods for controlling an implantable pump are provided. For example, the exemplary controller for controlling the implantable pump may only rely on the actuator's current measurement. The controller is robust to pressure and flow changes inside the pump head, and allows fast change of pump's operation point. For example, the controller includes, a two stage, nonlinear position observer module based on a reduced order model of the electromagnetic actuator. The controller includes an algorithm that estimates the position of the moving component of the implantable pump based on the actuator's current measurement and adjusts operation of the pump accordingly. Alternatively, the controller may rely on position measurements and / or velocity estimations.

The invention discloses an electromagnetic actuator with a rigidity compensation function. The end face of the inner side of a stator iron core of a C-shaped structure is provided with a trapezoidal slope notch, and the working face of a rotor is a slope matched with the notch of the stator iron core; the N pole and the S pole of the permanent magnet are attracted to the upper end arm of the stator core, the coil winding is wound on the yoke portion of the stator core, the flexible guide mechanism is connected with the rotor and the base, the lower end arm of the stator core is connected with the base through a fastener, and the fastener is screwed to adjust the relative distance between the end face of the stator core and the working face of the rotor. According to the invention, the rotor and the stator core form an inclined air gap, and the linear displacement of the rotor is not equal to the normal thickness of the air gap any more, but is amplified in geometrical relationship. The fundamental contradiction of strong coupling of the stroke and the thickness in a traditional plane air gap is overcome, on the premise that a small initial normal air gap is maintained, the macroscopic motion stroke several times of the thickness is achieved, and the problem that large stroke and high linearity are difficult to consider at the same time is solved from the structural principle.

A gas injector for injecting a gaseous fuel. The gas injector includes a solenoid actuator having an armature, an internal pole and a coil; a closing element, which unblocks and seals a gas path at a valve seat, the armature being connected to the closing element; a sealed lubricant chamber, which is filled with a lubricant, and in which the armature is situated, the lubricant ensuring lubrication of the armature; and a flexible sealing element, which seals the lubricant chamber with respect to the gas path, a damping device being situated in the lubricant chamber.

A composite valve sub assembly includes a tubular sleeve inserted into a single attachment hole of a body; an electromagnetic valve body housed in the sleeve; a solenoid actuator configured to move the electromagnetic valve body in the sleeve; a plug fixed at an end portion of the sleeve and disposed between the sleeve and a bottom surface of the attachment hole; and a check valve body disposed on the opposite side of the electromagnetic valve body from the plug. The plug has an internal flow path including a first opening connected to a first flow path of the body and opened and closed by the electromagnetic valve body, and a second opening connected to a second flow path of the body and opened and closed by the check valve body.

The application discloses a rotor stability control device and method with a spherical hinge, which mainly comprises a measurer, a controller, an electromagnetic actuator and a spherical hinge bearing support. The method mainly comprises the following steps: real-time monitoring and acquisition of vibration state data of a spherical hinge balance disc during rotation of a rotor; generation of a control signal by the controller according to the monitored and acquired vibration state data; output of an electromagnetic force by the electromagnetic actuator according to the control signal; application of the electromagnetic force to the spherical hinge balance disc, suppression of vibration of the balance disc and adjustment of equivalent angular stiffness, angular damping and angular mass of the spherical hinge bearing support; and application of the equivalent angular stiffness, the angular damping and the angular mass to the rotor through a controllable flexible foundation, so as to realize rotor stability control.

The utility model relates to an electromagnetic actuator. The electromagnetic actuator comprises an electromagnetic field generator, a permanent magnet, an armature, a front magnetic pole and a rear magnetic pole, the front magnetic pole and the rear magnetic pole are located at the two axial ends of the electromagnetic field generator respectively, and the armature is installed on the radial inner side of the electromagnetic field generator. The armature can be driven by electromagnetic force of the electromagnetic field generator to axially move between a first limit position and a second limit position, the armature abuts against the front magnetic pole at the first limit position and abuts against the rear magnetic pole at the second limit position, and the front magnetic pole and the rear magnetic pole can be magnetized by the permanent magnet to generate magnetic attraction force for attracting the armature. The electromagnetic actuator further comprises a front elastic buffering piece and / or a rear elastic buffering piece, when the armature is located at the first limit position, the armature and the front magnetic pole compress the front elastic buffering piece in the axial direction, and when the armature is located at the second limit position, the armature and the rear magnetic pole compress the rear elastic buffering piece in the axial direction. The electromagnetic actuator provided by the utility model has an improved structure.

A circuit interrupter includes a housing; line conductors; load conductors; an isolation switch assembly including isolation switches disposed within the housing, one solenoid actuator disposed external to the housing and between two line conductors, the one solenoid actuator structured to actuate the isolation switches to be open or closed based on a command signal, and an insulating connector connecting the isolation switches and the one solenoid actuator; and a power electronic module disposed within the housing and including a controller and electronic interrupters connected to the controller, the isolation switches and the load conductors, the controller structured to generate and transmit a control signal comprising the command signal to the electronic interrupters or the solenoid actuator, the electronic interrupters structured to allow the current to flow during normal operation and interrupt the current from flowing to the load in the event of a fault based on the control signal.

The invention relates to the technical field of high-pressure valves, in particular to a low-power-consumption bistable electromagnetic actuator for a valve, which comprises a casing main body for accommodating other parts of the electromagnetic actuator, introducing a control wire and allowing an output component to penetrate out; the stator assembly comprises annular coil devices which are symmetrically arranged in the axial direction and generate armature magnetic flux to control an output component to move transversely, and control wiring to control the time sequence of the armature magnetic flux generated by the coil devices. The middle iron core assembly comprises a permanent magnet device capable of generating permanent magnetic flux, and the permanent magnet device is located in the symmetrical middle of the symmetrically-arranged annular coil device and used for conducting electromagnetic fixing on the output component after transverse movement is finished. The armature assembly is used for driving the output component to retract into or penetrate out of the machine shell body under the action of armature magnetic flux to execute valve switch control action, and the armature assembly is arranged in the stator assembly and penetrates through the middle iron core assembly. According to the invention, a novel composite magnetic circuit under the dual action of a constant magnetic source and an electromagnetic field is constructed, so that bidirectional active switching between steady-state positions is realized.

The application discloses a linear electromagnetic actuator integrating sensing and executing, which comprises a rotor, a guide rail and a stator; the guide rail is installed on the stator; the guide rail is provided with a movable groove, and the rotor can move in the movable groove. The stator comprises a stator base plate, an inductor coil and a driving coil; the inductor coil is integrated on the back of the stator base plate, and the driving coil is installed on the front of the stator base plate. The inductor coil and the magnetically conductive rotor base plate form an inductor system, when the rotor moves under the action of the driving coil, the inductance will periodically change with the position of the rotor. The position detection of the motor can be carried out based on the periodic change of the inductance, and the speed feedback control of the electromagnetic actuator is facilitated.

A solenoid actuator has a coil at least partially surrounding an axis and an armature sleeve at least partially extending through the coil. The armature sleeve includes a longitudinally extending wall extending substantially parallel to the axis and an end portion extending inwardly at an end of the longitudinally extending wall. The armature is slidably supported in the armature sleeve for movement along an axis between at least a first actuation position and a second actuation position. The armature has an armature body having an outer longitudinal surface facing the longitudinally extending wall and an end surface facing the end portion of the armature sleeve. The longitudinally extending wall is in sliding fit with an outer longitudinal surface of the armature. On the armature, an oil storage space is formed in an intersection region between an outer longitudinal surface and an end surface of the armature.

The invention discloses a wind tunnel magnetic suspension balance control system and control method. The system comprises a multi-axis synchronous controller, an eddy current displacement sensor array, a power amplifier and an electromagnetic actuator array. The eddy current displacement sensor array is used for acquiring each degree-of-freedom position of the model; the electromagnetic actuator array and the power amplifier are used for generating electromagnetic force so as to control model displacement; the eddy current sensors and the electromagnetic actuators are arranged in an independent differential mode, electromagnetic force and displacement coupling between components can be reduced, linear control is improved, and therefore the aerodynamic force measurement precision is improved; the multi-axis synchronous controller takes the control target of maintaining the model at the absolute geometric center of each electromagnet group, adopts a composite decoupling control strategy, solves aerodynamic force by monitoring the current variation of a power amplifier, supports online reconfiguration of control parameters, and realizes wide-range and high-precision measurement. According to the invention, low-coupling and high-precision control of the balance system in the wind tunnel based on differential active magnetic suspension is realized.

A heat pump system for a vehicle, comprising: a compressor (1a), compressing a refrigerant; a refrigerant circuit, forming a closed-loop flow path of the refrigerant; a plurality of switching valves, comprising at least one of a 2 / 2-way valve, a 3 / 2-way valve, and a 4 / 2-way valve, wherein the 2 / 2-way valve is configured to be controlled to block or open the flow path, the 3 / 2-way valve is configured to be controlled to switch the flow path, and the 4 / 2-way valve is configured to be controlled to reverse heat exchange; and a first pilot valve (19), simultaneously controlling at least two of the plurality of switching valves. By using the heat pump system, the total number of solenoid actuators and the number of valves can be decreased. Thus, the mounting space is reduced, and the workload for wiring and controller calibration is reduced.

1. The name of the design product: low-power electromagnetic actuator (A08C actuator). 2. The use of the design product: electromagnetic actuator for fuel injection quantity adjusting device of diesel engine. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

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.

Electromagnetic actuator for a hydraulic directional control valve, comprising: - a housing (08) with which the actuating unit can be attached opposite the directional control valve, - a coil (01) arranged in a coil former (03), - an anchor (09) which is arranged to be axially displaceable in the actuating unit, - and a seal (13, 24) between the housing (08) and the coil body (03), which has a circumferential circular groove (27) for receiving the seal (24), characterized in that the coil body (3) has a holder (26, 28) for holding the seal (24) during assembly of the actuating unit, wherein: - the holder (26, 28) is formed by an undercut (28) of an inner wall of the groove (27), into which the seal (24) can be inserted by elastic deformation, - the coil body (03) has a hollow cylindrical basic shape (21) and the support (26, 28) is formed on a base surface of the hollow cylindrical basic shape (21), - the anchor (09), a yoke (04) and a pole core (07) are arranged in the cavity of the hollow cylindrical base form (21), - and the inner wall of the groove (27) is formed segmentally with respect to its direction of rotation.

The electromagnetic actuator assembly (101) comprises at least one first electromagnetic actuator (BV), the first coil assembly (201) having at least one first coil core (202) and first coils (203, 204), and a movable magnetic first armature body (208), the first armature body (208) being movable from a first position to a second position (149) by a magnetic field generated by the first coil assembly (201), in which the first armature body (208) is attracted towards a first surface (205) arranged opposite the first armature body (208) and in contact with the first coil core (202). (BV), and at least one second electromagnetic actuator (EV, AV), comprising a second coil assembly (301) having at least one second coil core (302) and second coils (303, 304), and a movable magnetic second armature body (308), the second armature body (308) having a damping device (309) provided on the second armature body (308), movable from a first position to a second position (149) by a magnetic field generated by the second coil assembly (301), in which the second armature body (308) is attracted towards a second surface (305) and abuts against the second surface (305) by the damping device (309). In this case, the first surface (205) and the second surface (305) are formed to have the same structure.

The utility model discloses a novel electric unlocking glove box driving mechanism and a glove box. The novel electric unlocking glove box driving mechanism comprises a lock rod rotating disc, a left side lock rod, a right side lock rod and an electric unlocking component. The lock rod rotating disc is installed on the glove box frame and provided with a base plate, a rotating disc limiting rib and symmetrical rotating bosses at the two ends. One end of the left lock rod and one end of the right lock rod are connected to the rotating boss, and the other ends are provided with lock tongues. The glove box frame is correspondingly provided with lock tongue matching holes. The electric unlocking component comprises an electromagnetic actuator and a magnet part, the left lock rod is provided with the magnet part, the electromagnetic actuator is installed on the glove box frame, an electromagnetic part faces the magnet part, and an abnormal sound prevention rubber part is arranged in the middle. When the electromagnetic part is powered on, the electromagnetic part and the magnet part repel to push the left side lock rod to move leftwards, the left side lock rod drives the right side lock rod to move rightwards through the lock rod rotating disc, the spring bolt is separated from the spring bolt matching hole, and unlocking of the glove box is achieved. And the stability of the driving mechanism is improved.

The application provides an electromagnetic actuator, which comprises a ring-shaped electromagnetic assembly, a push ring is coaxially sleeved in the inner ring of the electromagnetic assembly, the push ring moves along the axial direction under the drive of the electromagnetic assembly, the outer wall of the push ring is attached to the inner wall of the inner ring, and the radial position of the push ring is determined by the inner wall of the inner ring when the push ring moves along the axial direction. The electromagnetic actuator provided by the application can keep the stability of the axial movement of the push ring by using the attachment and guidance of the inner wall of the push ring and the inner ring of the electromagnetic assembly. The radial position stability of the push ring can be kept without adding a coaxial sleeve part attached to the push ring and without relying on an external coaxial part, so that the electromagnetic actuator provided by the application is more integrated and smaller in structure.

The present utility model relates to a safety lock for emergency devices in transport vehicles, said safety lock comprising at least one solenoid actuator (1) connected to a blocking piece (2) fastened to the end of the solenoid shaft (11). Said solenoid (1) is enclosed by a casing (12) with orifices (121) for fastening. The upper portion of a fastening plate (3) is attached to the casing (12). The plate (3) contains holes (31) corresponding to the orifices (121) and the plate (3) is fastened to the casing (12) by means of a fastening element. The lower portion of said plate (3) also contains holes (32) corresponding to the orifices made in the structure (E) of the mechanism (M); thus, by means of fastening elements, the plate (3) attaches to the structure (E) and consequently fastens the solenoid (1) to the mechanism (M).

Operating a fuel injector in a fuel system for an engine includes energizing a first solenoid actuator to move a spill valve from a first position to a second, closed position, and energizing a second solenoid actuator to move a fuel injection valve in the fuel injector from a closed position to an open position. A pull-in tier of a waveform energizing the second solenoid actuator is generated via a first current produced by a boosted voltage power supply and a second current produced by a lower voltage power supply. Arrival timing of the valve at the open position is detected based on a property of the second current, such that a valve arrival timing error may be used to trim the fuel injector. Related methodology and control logic is also disclosed.

Adjustable damping valve device comprising an actuator with a solenoid coil and an axially movable armature, wherein a groove-rib profile connection is functionally provided between the armature and a component conducting a magnetic flux of the solenoid coil, which engages when the actuator is actuated, wherein the ribs have at least partially different immersion depths in the corresponding grooves when the actuator is actuated.

The application aims to provide a superheat control type ammonia fuel supply system based on fuel activity design, belonging to the field of fuel supply, comprising a liquid ammonia common rail type supply system, a diesel common rail type supply system, a fuel injection device, a superheat control unit and other components of an engine. Hydroxyl-rich gas is used as a combustion-supporting agent instead of pure hydrogen fuel. The safety of the system is ensured, the dynamic thermal management characteristics during engine operation are fully considered, ammonia fuel superheat control is performed, and the direct control form of the sleeve type valve rod strong magnetic force electromagnetic actuator is adopted for the ammonia fuel injection of the application, realizing high response and precise injection of the double fluid mixed gas. The electromagnetic actuator structure of the multi-hole valve rod is adopted to realize the rapid response of the control valve and the separation of the servo oil circuit and the supply oil circuit; the new valve rod structure is adopted to reduce the weight of the valve and the electromagnetic force demand, improve the response performance, and fundamentally avoid the cavitation problem caused by the traditional control valve structure.

Disclosed are various embodiments of an automated system for moving an input shaft associated with landing gear of a platform, for example, a trailer or ramp, along its longitudinal axis in order to switch gears. One such system, among others, has a controller that is electrically coupled to a gear shifter. The controller is capable of causing the gear shifter to move the landing gear input shaft in first and second opposing longitudinal directions in order to shift between the gears. The gear shifter may implement the longitudinal movement via a linear actuator, solenoid actuator, or other suitable device.

The utility model relates to an electromagnetic actuator. The electromagnetic actuator comprises an electromagnetic field generator, a permanent magnet, an armature, a front magnetic pole, a rear magnetic pole and a push rod, the front magnetic pole and the rear magnetic pole are located at the two axial ends of the electromagnetic field generator respectively, and the armature is installed on the radial inner side of the electromagnetic field generator and can axially move relative to the electromagnetic field generator. The front magnetic pole and the rear magnetic pole can be magnetized by the permanent magnet to generate magnetic attraction force for attracting the armature, the push rod is fixed to the armature and comprises a first end, and the first end extends in the axial direction to be away from the armature and penetrates through the front magnetic pole. The support is fixedly arranged on the push rod and located on the side, away from the rear magnetic pole, of the front magnetic pole in the axial direction, the elastic piece elastically abuts against the position between the support and the front magnetic pole or the position between the support and a part fixed relative to the front magnetic pole in the axial direction, and therefore elastic force enabling the support to be away from the front magnetic pole can be applied. The electromagnetic actuator provided by the utility model has an improved structure.

The invention discloses an electromagnetic actuator, and relates to the field of actuators, the electromagnetic actuator comprises a cylinder body, the top of the cylinder body is connected with a front cover, the bottom end and the top end in the cylinder body are respectively provided with a lower electromagnetic pole and an upper electromagnetic pole, a piston ring is movably connected between the lower electromagnetic pole and the upper electromagnetic pole in the cylinder body, and the piston ring is made of iron. And one end of the piston ring is connected with an execution rod, and the execution rod movably penetrates through the middle neutral gear of the upper electromagnetic pole and movably penetrates out of the front cover. An electromagnetic attraction compound execution mode is adopted, the main execution mode is that an electromagnetic pole is installed at the top end of the bottom end, an iron piston ring is installed at the middle execution end and connected with an execution rod, when one end of the top end or the bottom end is magnetized, a magnetic field is attracted into the iron piston ring, and the execution rod stretches out or retracts back, and the mode is accurate in positioning and low in cost; and high-performance application is realized in a production environment with extremely high requirements or in a severe environment.

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

A gear shifting assembly includes a gear shifting unit and a solenoid actuation arrangement. The gear shifting unit includes a driving member and a driven member. The solenoid actuation arrangement includes a solenoid actuator, a transmission arm, and an engaging ring connected to the driving member and the transmission arm. The solenoid valve can be operated between a first state and a second state, wherein in the first state, the solenoid actuator is switched to drive the transmission arm to move the engaging ring to drive the driving member to engage with the driven member, such that the driving member and the driven member can be driven to rotate correspondingly. In the second state, the solenoid actuator is switched to drive the driving member to disengage from the driven member so as to allow the driving member and the driven member to rotate at different speeds.

The application aims to provide an ammonia fuel integrated injector based on hydroxyl-rich combustion-supporting, comprising a liquid ammonia supply control module, a liquid ammonia injection control module and a double-fluid injection module. The application designs an electromagnetic actuator structure with a porous valve rod, so that the pressure at the upper end of the control cavity is adjustable, the quick response of the control valve is realized, and the separation of the servo oil circuit and the supply oil circuit is realized. For the injection control of ammonia fuel, a strong magnetic force electromagnetic actuator with a sleeve valve rod is designed, a direct control form of the structure is adopted, and high-response precise injection of double-fluid mixed gas is realized. In addition, the application realizes large-flow injection of ammonia fuel by adopting hydroxyl-rich gas for double-fluid injection, mixing liquid ammonia with gas by the liquid ammonia injection module, and injecting the mixture into the cylinder, and ensures the combustion effect by combustion-supporting of the hydroxyl-rich gas.

To provide a solenoid actuator which attains predetermined electromagnetic characteristics while reducing manufacturing costs, and to provide a method of manufacturing the solenoid actuator.SOLUTION: A solenoid actuator 1 includes: a coil 3; a first stator 10 and a second stator 20 which are arranged forming an air gap 11 therebetween in an axial direction so as to form a magnetic path 4 around the coil 3; and a movable element 50 configured to move in the axial direction toward the second stator 20 from an original position radially inward of the first stator 10 by a magnetic force generated by energizing the coil 3. The second stator 20 includes: a second yoke 24; and a second press component 40 which is formed by a magnetic material and provided at the inner periphery side of the second yoke 24 so as to protrude from the second yoke 24 toward the first stator 10 in the axial direction.SELECTED DRAWING: Figure 1