Abstract: The electromagnet includes a valve-opening side coil portion supplied with a current to thereby generate a first magnetic flux and generate electromagnetic force in a direction moving the valve-opening side moving element toward a valve-opening position, and a valve-closing side coil portion supplied with a current to thereby generate a second magnetic flux and generate electromagnetic force in a direction moving the valve-closing side moving element toward the valve-closing position. The valve-opening side coil portion and the valve-closing side coil portion are constituted of an identical connection. The electromagnet further has a sub-coil constituted of a separate connection from the valve-opening side coil portion and the valve-closing side coil portion. By the current supply to the sub-coil, a third magnetic flux reducing at least one of the first magnetic flux and the second magnetic flux is generated.

Abstract: An actuator arrangement for use in a fuel injector of an internal combustion engine includes an inner core (30) comprising a plurality of laminates (30a) and a first outer pole (32) for receiving at least a part of the inner core (30), wherein the inner core (30) and the outer pole (32) together define a first volume (46) for receiving a first electromagnetic winding. An injector is provided in which the actuator arrangement controls a valve arrangement, either a spill valve or a nozzle control valve, or both, so as to control injection by the injector.

Abstract: A fuel injector includes an inductive heater that generates heat inductively in a structure to rapidly heat fuel within the fuel injector. Wires are connected to the inductive heater and are arranged outside of a fuel flow path.

Abstract: A fuel injector assembly includes a first coil that induces a time varying magnetic field into a second coil that is utilized to heat fuel flowing through the fuel injector. A first coil receives a first signal from a driver to generate a first magnetic field that moves an armature between an open and closed position. The second coil generates a second magnetic field generated by a current induced by the first coil into the second coil. The induced current is generated by an alternating current signal that is interposed onto a direct current signal sent to the first coil. The alternating current signal produces a time varying second magnetic field that induces heating of a magnetically active component with the fuel flow that in turn heats the fuel.

Abstract: A valve actuator for an internal combustion engine is described having a core having a wound coil located therein, said core further having at least one permanent magnet located at least partially inside or outside said coil and positioned at an angle relative to a direction of movement of an armature. Further, various recesses, indentations, chamfers, bevels, and/or depressions may be included to affect flux leakage, and/or force generation.

Abstract: The injector has a cylindrical body, which houses an injection nozzle regulated by an injection valve provided with a moveable pin, a fuel supply line, an injection chamber communicating with the supply line, housing a lower portion of the pin and delimited below by a valve seat of the injection valve, a control chamber communicating with the supply line and housing an upper portion of the pin, and a control valve, which is capable of putting the control chamber in communication with a drain for the low-pressure fuel and is controlled by an electromagnetic actuator provided with a pair of electromagnets identical with each other and arranged mechanically in series with each other so that their respective thrust forces are added together.

Abstract: An electrically-operating liquid dispenser having an U-shaped pole. Windings of an electromagnetic coil are wound about the legs of the U-shaped pole and are energized selectively for moving an armature relative to the pole to open and close the dispenser. The U-shaped configuration of the pole conserves space within the dispenser and contributes to a narrow geometrical configuration for the dispenser, which allow more compact side-by-side arrangements of multiple dispensers. In certain embodiments, the windings may be divided into sets capable of being individually energized.

Abstract: A valve actuator for an internal combustion engine is described having a core having a wound coil located therein, said core further having at least one permanent magnet located at least partially inside said coil and positioned at an angle relative to a direction of movement of an armature.

Abstract: A coupling solenoid valve having a main valve unit and a solenoid operating unit, of which both side faces in the valve-width direction correspond to a first coupling face and a second coupling face for coupling another solenoid valve, wherein pilot valves are detachably attached to the top and bottom faces of a center base extending from an adapter block, electroconductive fittings for electrically connecting between coil terminals and board terminals of each pilot valve, and folding-type elastic terminal portions are provided on both ends, these elastic terminal portions are flexibly in contact with the coil terminals and the board terminals from the side-face direction.

Abstract: Fuel injectors and methods of fuel injection allowing direct control of the flow of fuel at an intensified pressure to the needle. A valve, typically a spool valve, is placed in the fuel passage between the intensifier actuation piston and the needle, and controlled by a control valve which may be independent of the control valve controlling the coupling of actuation fluid and a vent to the intensifier actuation piston. This allows achievement of intensification before initiating injection, and control of multiple injections in a single injection event while maintaining fuel intensification throughout the duration of the injection event. Various embodiments are disclosed, including embodiments having multiple intensifiers, having control of pressure over the needle, having two stage control valve systems for control of intensifier actuation fluid, and combining control of one of the intensifiers and the valve controlling flow of intensified fuel to the needle for injection.

Abstract: A lever electromechanical valve actuator assembly and arrangement of electromechanical valve actuators that creates a compact actuator assembly to increase ease of serviceability, provide space for engine components and eliminate interference between the actuators and components in the vehicle engine compartment.

Abstract: A purge valve includes an aperture, a member, and an actuator. The aperture defines a portion of a vapor flow path that extends between a first port that communicates vapor with a fuel vapor collection canister and a second port that communicates vapor with an intake manifold of an internal combustion engine. The member is displaced between a first configuration that occludes the aperture and a second configuration that permits vapor flow along the vapor flow path. The actuator, which displaces the member between the first and second configurations, includes a stator and an armature. The stator includes first and second windings that are spaced along an axis. The armature, which is coupled to the member, includes a permanent magnet that is axially positioned at least partially between the first and second windings.

Abstract: To provide a valve device in which a width of a valve body portion is minimized while suppressing reductions in responsiveness and a flow rate and in which a solenoid portion can produce a necessary output with a small width by using an open/close valve with a short stroke. A solenoid valve device for opening and closing an output flow path for pressurized fluid includes the solenoid portion, the valve body portion 3 in which valve seats are formed to be elongated in the direction of arrangement of the plurality of solenoids, and a movable valve made of a paramagnetic material to open and close the valve seats. The solenoid portion includes a plurality of solenoids having attracting faces which are at one ends of fixed cores and are arranged to be adjacent to each other on the same plane and a common magnetic frame covering the solenoids.

Abstract: A solenoid for use in valves used in evaporative emission control systems, such as canister purge valves or vent solenoid valves. The solenoid includes a housing having an inlet port and an outlet port. The housing further includes a guide element having a bobbin section. A valve shaft is slidably mounted to the guide element, wherein the valve shaft includes a permanent magnet and a valve element. The valve element is movable between a closed position wherein the inlet port is closed and an open position wherein the inlet port is opened. A coil is formed on the bobbin adjacent the magnet. In use, the coil generates directional magnetic fields oriented to cause the magnet to be repelled to move the valve element to the open position and oriented to cause a magnetic attraction with the magnet to move the valve element to the closed position.

Abstract: The present invention relates to a high-speed controlling device, suitable for displacing a switching element between two positions with very short switching times. Said device comprises two switchable electromagnets, between which an armature, with a driven coupling to the switching element, is arranged. According to the invention, said armature contacts the first electromagnet in the first position of the switching element and contacts the other electromagnet in the second position of the switching element. In order to obtain particularly short switching times for the switching element, the armature can be firmly secured to a shaft, which is rotatably mounted about its longitudinal axis and to which said switching element is also fixed in an axially offset manner in relation to the armature.

Abstract: A valve unit for controlling the delivery of a fuel gas through a delivery duct (3) comprises a valve seat (6) in the duct, a closure member (5) associated with the seat, a motor-driven actuator (7) acting on the closure member in order to control it so as to open/close the valve seat, as well as an electromagnetic unit (22) with a first portion (23) carrying a magnetizing winding (24) and a second portion (25) which can be fixed firmly to the first position by magnetization.

Abstract: In method and apparatus for controlling starting of a solenoid-operated valve for an internal combustion engine, when a request for a start of the solenoid-operated valve is generated, a provisional target position to which an armature is likely to be moved is determined, and the armature is moved to the determined provisional target position. If the provisional target position is difference from a predetermined target position, the armature is moved to the target position after being moved from the neutral position to the provisional target position.

Abstract: A system for electronically actuating valves in an engine. The system includes first and second voltage sources, and a plurality of valve actuator subsystems coupled therebetween. Each valve actuator subsystem has a valve actuator and a switch configured to selectively control application of voltage to the valve actuator to thereby selectively control energization of the valve actuator. The system also includes a dissipation switch operatively coupled with the valve actuator subsystems, the dissipation switch being selectively operable to control dissipation of energy from any of the valve actuators.

Abstract: An electromagnetic valve assembly for controlling airbags, includes a single valve assembly joined by main valve bodies of two electromagnetic valves each having respective electromagnetic control coils. A ventilation opening of the joined single valve assembly is placed with a film further mounted with a ring-shaped loop; an upper cover of the valve is connected with an electromagnetic tube accommodated with a spring and an electromagnetic; a rhombus flange is utilized to press against a washer and the ring-shaped loop. The electromagnetic is placed with a coil thereon and a planar washer; a ventilation opening at a side of the valve cover is placed with a ring-shaped loop to keep being airtight with the main valve body by using a screw; and the main valve is provided with a stopper at a side thereof, and an L-shaped plate being capable of adjusting installed positions.

Abstract: A system for electronically actuating valves in an engine. The system includes a first voltage source, a second voltage source, and plural valve actuator subsystems coupled between the first voltage source and the second voltage source. Each valve actuator subsystem has a valve actuator and a switch. One of the actuator subsystems is configured so that current flows from the first voltage source through the valve actuator of the subsystem when the switch is in a first position, and when the switch is in a second position, current is permitted to flow from the valve actuator toward the second voltage source. Another of the valve actuator subsystems is configured so that current flows from the second voltage source through the valve actuator of the subsystem when the switch is in a first position, and when the switch is in a second position, current is permitted to flow from the valve actuator toward the first voltage source.

Abstract: Disclosed is a solenoid type electromagnetic operating device which needs a relatively large current only for a limited short period at an excitation start initial stage and is adapted to achieve the speeding up at an excitation start stage and an improvement in responsiveness as well as power saving without increasing a power load on each of a drive circuit and power supply.

Abstract: A system and method for controlling an internal combustion engine provide valve actuation that selectively couples an energy storage device to a launching coil to recover energy stored in the magnetic field and valve spring of the launching coil, decouples the energy storage device during a valve opening or closing event to control energy supplied to the catching coil, and couples the energy storage device to the catching coil to transfer energy from the storage device to the catching coil to provide a repeatable soft landing. A nonlinear feedback controller incorporates a feedforward system with an observer to control the rate of energy into the magnetic field of the catching coil while compensating for system losses and work to overcome gas forces within the combustion chamber. Feedback linearization techniques improve stability of the control system.

Abstract: 2.1. Existing valve control devices are set up in housings that feature also the complete yoke in addition to the valve spools. 2.2. In order to reduce the assembly effort required as well as the play of the valve domes on the inside of the spool, yoke arrangements are mounted externally on the housing. 2.3. Such valve control devices are suitable for antilock braking systems, anti-slip control systems, electronic brake servos, and electronic stabilizing programs in motor vehicles.

Abstract: A variable function voting solenoid-operated valve apparatus is provided having both high safety availability and high plant reliability that does not require a plant system to be bypassed during testing. Also provided is a variable function voting solenoid-operated valve apparatus wherein initiation of a safety action will occur only if each of a pair of operatively associated solenoid-operated valves in the apparatus are actuated, and wherein either of the solenoid valves can singly default to a pre-designated safety action without inadvertently actuating the process valve and isolating or venting the process fluid. Also provided is a variable function voting solenoid-operated valve apparatus wherein either a “1 out of 1 with hot stand-by” operational mode or a “2 out of 2 with high diagnostics” operational mode may be selected by an operator using a logic control system depending on the technical requirements of a given plant environment.

Abstract: An electromagnetic valve unit comprises a yoke of magnetic metal. The yoke includes upper and lower walls that are integrally connected by side walls. A slit is provided by the upper wall of the yoke. The slit extends along a longitudinal axis of the yoke between axially opposed ends of the yoke. A plurality of electromagnetic valves are abreast installed in the yoke in such a manner that the yoke constitutes outside magnetic paths of solenoid coils of the valves. Each of the solenoid coils has terminal members projected outward from the yoke through the slit.

Abstract: To provide a valve device in which a width of a valve body portion is minimized while suppressing reductions in responsiveness and a flow rate and in which a solenoid portion can produce a necessary output with a small width by using an open/close valve with a short stroke. A solenoid valve device for opening and closing an output flow path for pressurized fluid includes the solenoid portion 2, the valve body portion 3 in which valve seats 39A and 39B are formed to be long in an arranged direction of the plurality of solenoids, and a movable valve 4 made of a paramagnetic material to open and close the valve seats. The solenoid portion 2 includes a plurality of solenoids 21A and 21B having attracting faces 14A and 14B which are at one ends of fixed cores 10A and 10B and are arranged to be adjacent to each other on the same plane and a common magnetic frame 24 covering the solenoids.

Abstract: A fuel injector (1), especially an injector for fuel injection systems of internal combustion engines, includes a first solenoid coil (5), which cooperates with the first armature (9), a valve needle (13) in a force-locking connection with the first armature (9) for actuating a valve-closure member (14), which together with a valve seat surface (15) forms a sealing seat, and a second solenoid coil (6). In this context, the first armature (9) is acted upon in a closing direction by a first resetting spring (11). A second armature (10) cooperates with the second solenoid coil (6) such that, when the first solenoid coil (5) and the second solenoid coil (6) are supplied with current, a limit stop body (18) that is connected with the valve needle (13) strikes against the second armature (10).

Abstract: A booster actuator 10 may be positioned between the solenoid 12 and a valve 14, and increases the energy output from the solenoid to activate the valve. The booster actuator 10 may include a force input member 28 and a force output member 30 each linearly movable with respect to a body 20 from an initial position to an activated position. A coil spring 46 biases the input member to the initial input position, while a plurality of disk springs 48 bias the output member 30 to the activated output position. A plurality of linking members 32 each pivotable with respect to the body normally retain the force output member in the initial position, but upon movement of the input member to the activated position release the force output member in response to the disk springs.

Abstract: A system and method for increasing force density of a valve actuator particularly suited for use in actuation of intake and/or exhaust valves of an internal combustion engine include at least one electromagnet having a coil wound about a core, and an armature fixed to an armature shaft extending axially through the coil and the core, and axially movable relative thereto. The actuator includes a flux generator, such as at least one permanent magnet positioned between the coil and the armature, oriented so that magnetic flux of the generator travels in a direction opposite to magnetic flux produced by the coil through the core during coil energization to reduce saturation of the core, but in the same direction as the magnetic flux produced by the coil through the armature, to increase an attractive force between the armature and the electromagnet, resulting in an actuator with an increased force density.

Abstract: The present invention relates to a gas exchange valve drive for a valve-controlled combustion engine with a hollow cylindrical rotor (16) to be coupled with a valve member (12) and a stator (18), wherein the rotor (16) comprises permanent-magnetic rings (30) concentrically arranged one above the other, the stator (18) is at least partially constructed of a soft magnetic material and comprises at least one tooth (22) facing towards the rotor (16), the stator (18) comprises a radially inner magnetically conductive area (50) and a radially outer magnetically conductive area (52), with the rings (30) of the rotor (16) being arranged between the inner area (50) and the outer area (52) of the stator (18), and the outer area (52) of the stator (18) in at least one partial section (54) is designed with a C-shaped cross-section and comprises at least one stator coil (28).

Abstract: An apparatus for performing high-speed interruption of high-speed fluid jets (30) of the type used to cut food, plastics, wood, metal, and other products. The water jet (30) is interrupted by a blocking bar (22) mounted on a housing (12). The blocking bar (22) is pivoted by actuators so that the bar is disposed away from the high-speed fluid jet (30) in the open position and blockingly intersects the high-speed fluid jet (30) when in the blocking position. At least one of the actuators is an electromagnet assembly (20) and (21) having a selectively energizable coil (78) such that energizing the coil (78) will induce a magnetic field. The blocking bar (22) has an area of high magnetic permeability (114), wherein the bar (22) may be pivoted by application of the magnetic field generated by the coil (78) upon the area of high magnetic permeability (114).

Abstract: In an electromagnetic fuel injector of an internal combustion engine, an electromagnetic coil for valve driving is to be wound on a bobbin, and the bobbin is constituted by a synthetic resin containing a filler having good heat conductivity. For example, the bobbin with the coil to be wound thereon is constituted by PPS containing iron oxide and/or alumina as a filler. Two types of electromagnetic coils different in characteristics are provided in the fuel injector. These coils are wound separately on one bobbin in an axial direction. Among them, one coil (hereinafter referred to as “first coil”) has a winding region near a movable unit with a valve element being the object of magnetic suction, and other coil (hereinafter referred to as “second coil”) has a winding region away from the movable unit.

Abstract: An electromagnetically driven valve device is formed by attaching a lower core assy, an armature, an upper core assy, and an upper case in that order from bottom, to a cylinder head of an engine. Each of the lower core assy and the upper core assy is unitarily formed so as to have a predetermined shape by resin-molding a core and a coil that form an electromagnet as well as an armature bearing, etc. The lower core assy is fastened together with the upper core assy to the cylinder head, and is thus attached to the mounting surface.

Abstract: A bi-directional piloted solenoid-operated valve which utilizes fluid pressure to provide both pressure-assisted sealing and pressure-assisted actuation to the main sealing disc in both flow directions. The valve may include a mechanical position indicator for providing visual confirmation of the position of the main disc.

Abstract: A bi-directional piloted solenoid-operated valve which utilizes fluid pressure to provide both pressure-assisted sealing and pressure-assisted actuation to the main sealing disc in both flow directions. The valve may include a mechanical position indicator for providing visual confirmation of the position of the main disc.

Abstract: 1.

Abstract: A method is for the manufacture of an electromagnetic actuator, e.g., for the actuation of a charge cycle valve of an internal combustion engine. The actuator includes a rotary armature movable back and forth by electromagnets and supported in an actuator frame The electromagnets are first inserted loosely into the actuator frame and then brought into a defined spatial position in relation to the rotary armature by passing a current through the magnet. Next, the electromagnets are fixed in the actuator frame, corresponding to selected operating positions. The electromagnet may be provided with studs, which protrude through openings in the actuator frame into the outer chamber of the actuator and at which the electromagnet is connected to the actuator frame, for example, by laser beam welding.

Abstract: Biased actuators having first and second magnetic members, a first electromagnetic coil, the first magnetic member being moveable relative to the second magnetic member between first and second positions, and being electromagnetically attracted to the first position by electrical excitation of the first electromagnetic coil, a first preloaded spring configured to apply a first spring force to the first magnetic member biasing the first magnetic member towards the second position only when the first magnetic member is in or between the first position and some fraction of its travel from the first position to the second position. Various embodiments are disclosed, including embodiments having a second spring acting as a return spring throughout the motion of the first magnetic member, and dual electromagnetic coil configurations. Exemplary embodiments are disclosed with respect to spool-type valves.

Abstract: In a gaseous fuel supply apparatus with a shut-off valve, the valve includes a valve housing provided in a gas flow unit for supplying gaseous fuel from a fuel tank to a combustion engine, a seal member surrounding a valve port between a first port connecting to the tank and a second port connecting the engine in the housing, a valve member movable between a closed position at which the valve member is in contact with the seal member to close the valve port and an open position at which the valve member separates from the seal member to open the valve port, and a drive unit for driving the movement of the valve member by electromagnetic force.

Abstract: Fluid in a chamber, through which a fuel control armature is moving, is used to dampen armature vibrations. This dampening effect is achieved by forming a passage through which the fluid flows as the actuator moves to a steady state position. This passage may be implemented in a control module for controlling fuel delivery in a fuel injector. The control module includes a control module housing defining the cavity. The armature is disposed at least partially within the cavity. The armature affects the flow of fuel in the injector by changing the area of a fuel port through which fuel passes. The fluid passage is formed as the armature moves towards a contact wall defining the cavity.

Abstract: A method for controlling a solenoid using a single coil solenoid for both course and fine adjustment. A resistor or series of resistors may be used in parallel/for current controlled solenoids or in series for voltage controlled solenoids for allowing course or finite control of the solenoids.

Abstract: When an inlet valve is opened or closed via a first mover, by the operation of a first linear actuator, energy accumulated by a first spring or a second spring is discharged by the operation of a second linear actuator, to transmit the energy to the inlet valve via a second mover and the first mover. As a result, the inlet valve can be opened or closed at a high speed, with higher energy efficiency and has an improved durability.

Abstract: The electromagnetic valve actuator has an armature (22) of ferromagnetic material fixed to the stem of the valve, springs are provided to hold the valve at rest in a middle position between a fully open position and a closed position, and a single coil (38) is mounted on a ferromagnetic circuit. In combination with the armature, the magnetic circuit presents two stable magnetic flux paths both of which correspond to an airgap of small size.

Abstract: The solenoid valve of this invention comprises an electromagnet with a rotator disposed in at least one side of the valve body. The shaft of the rotator is provided with the valve members to open or close the valve port. The solenoid valve has advantages such as high attraction force, less power, and is easy to continuously control.

Abstract: Using a control coil having a high response characteristic suited to the valve opening and a hold coil suited to a hold to be held a large force by a small large current, during the valve opening time a high voltage is applied to the control coil suited to the valve opening and during a valve opening hold time a low and stabilized voltage is applied to the hold coil suite to the holding, and then a valve body driven. In a fuel injection apparatus, a drive manner during a valve opening time and a hold time is optimized.

Abstract: An electromechanical engine valve actuation system 10 is provided including a control element 16, a first actuator 18, a second actuator 20, an armature element 26 and a motion detector 32. The control element 16 controls the first actuator 18 and the second actuator 20 in response to the motion detector 32 in order to reduce the impact of the armature element 26.

Abstract: The multiple actuator for an electromechanically actuated valve has a housing and a plurality of armature shafts extending through the housing. Each of the armature shafts carry an armature, and two electromagnets which both lie inside the housing. Two springs act on each armature, forcing it into a position of repose between the electromagnets. This configuration makes optimum use of the available basic area above a valve which is to be driven. The armature has a maximum surface area, and optimum dissipation of heat through thermal conduction is possible via the corresponding housing underside.

Abstract: The invention relates to a control unit for an injection system for fuel, having a control part movable between a valve seat and a stop face of a bore in the housing. A high-pressure line discharges into a bore that penetrates the housing and receives the control part. A control face of the control part opposite the valve seat acts in the higher rpm range as a throttle element for filling a pump chamber in the housing.

Abstract: An object of the present invention is to provide a control system and a control method for servo valve which can stably continue to control a servo valve when a break occurs in servo coils of a servo valve having a plurality of servo coils. In the present invention, voltages of a plurality of servo coils 3A, 3B, 3C are detected by wire break detecting means individually provided to servo amplifiers 2A, 2B, 2C. The servo amplifiers 2A, 2B, 2C performs wire break detection and wire break compensation.

Abstract: An electromagnetic drive device is proposed comprising an electromagnet (21) having a magnetizable core (22) with a plurality of limbs (23 and 24) and an energizable winding arrangement (35) surrounding at least one limb (23 and 24) of the core (22). Furthermore there is a magnetizable magnet armature (15) able to be moved in relation to the core ((22) by varying the winding arrangement current. The (22) core has at least one U arrangement and is formed essentially by a plurality of sheet metal elements (30) resting against each other and extending athwart the direction of the parallel limbs (23 and 24), the parallel limbs being respectively surrounded by one winding (33 and 34) of the winding arrangement (35).