Abstract: Actuators with printed actuator coils facilitate efficient manufacturing and reliable operation. The printed actuator coils are in coil segments on multiple layers on a multilayer printed circuit board, which may contain a printed actuator coil for one or more additional actuators, and/or electronic circuitry, such, as may be used for control of the actuator(s).

Abstract: The invention refers to a solenoid, comprising a coil and a connection region for a current source. At least one conducting pin is arranged at the connection region. The pin is connected by a welding joint with the coil connector. The coil connector is connected to the coil. The pin can be positioned by a positioning piece slid on the pin.

Abstract: A method of manufacturing a solenoidal magnet structure, includes the step of providing a collapsible accurate mold in which to wind the coils winding wire into defined positions in the mold, placing a mechanical support structure over the coils so wound, impregnating the coils and the mechanical support structure with a thermosetting resin, allowing the thermosetting resin to harden, and collapsing the mold and removing the resultant solenoidal magnet structure formed by the resin impregnated coils and the mechanical support structure from the mold as a single solid piece.

Abstract: An auto-aligning and connecting structure used to connect and align an electronic device and an accessory, wherein a plurality of first magnetic bodies are disposed on a first surface of the electrical device and a plurality of second magnetic bodies are disposed on a second surface of the accessory. The magnetic pole of the first magnetic bodies and the second magnetic bodies are appropriately arranged so the first magnetic bodies and the second magnetic bodies can attract each other when the first surface and the second surface approach each other. Then, the electronic device and the accessories are connected to each other when the first surface and the second surface connect.

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 switch has a unitary plastic body that can be formed by injection moulding or extrusion. The body has a base that holds a magnetic field sensor. The base is fastened to a support structure by a plurality of fasteners. The base is connected to an arm by an elastic U-shaped portion of the plastic body that acts as both a hinge and a biasing member. The arm positions an activation magnet over the base and the sensor. The arm does not block access to fasteners that mount the switch to the support structure.

Abstract: A magnet system having a magnet coil (41) surrounded by a magnet pot (40), the magnet coil (41) being electrically connected to contact prongs (32), an interspace being formed between the outside of the magnet coil (41) and the inside of the magnet pot (40), in which interspace a free-flowing compound is cast. The magnet coil (41) is surrounded by a thin-walled coil insulating frame (1, 20, 30) on which tubular contact guide elements (6, 7) are integrally molded. The thin-walled coil insulating frame (1, 20, 30) is made of a thermally stable plastic material mixed with mineral fillers.

Abstract: The electromagnet system has a yoke (1) and a round core 92) that has a cylindrical shaft and an outwardly expanded cone section (25) toward the fastening end. The core has its shaft plugged in advance into a round hole (13) of the yoke proceeding from the outside. The cone section (25) of the core also has a thread with which it is turned into the thread-free round hole (13) of the yoke (1) by being turned. In this way, the core can be exactly positioned and a good interference fit and a good magnetic coupling are achieved.

Abstract: In an electromagnet (1) in which a lead wire (21a) is extracted through a through hole (33) from an annular coil member (2) placed in an annular groove (32) of an annular core (3), a spacer (5) is provided to make the annular coil member have a first portion spaced from the through hole in an axial direction of the annular core. The through hole is formed to a closed bottom surface of the annular groove. A thermal fuse (4) is located at a second portion of the annular coil member on a surface facing opposite to the closed bottom surface of the annular groove. The electromagnet is for use in an electromagnetic clutch.

Abstract: A drive device with an electric motor with permanent magnets and a pole top more particularly for use with servo drives in motor vehicles. A relay is provided for switching the motor current with at least one electromagnet, which contains a relay coil and a relay armature, and with at least one relay contact. The relay is mounted in the pole top of the electric motor and the magnetic field lines of the electromagnets are closed through the permanent magnets and the pole top of the electric motor.

Abstract: A simplified solenoid assembly has a simplified construction that maintains the mechanical integrity and operating efficiency of the solenoid. The solenoid assembly includes a frame having first and second frame leg portions extending from a frame middle portion. The side region of the first frame leg portion includes an aperture, and the side region of the second frame leg portion defines a frame pole face generally opposite the aperture. A bobbin having first and second bobbin end portions and a generally cylindrical bobbin intermediate portion is "snap-fit" between the frame leg portions. A plunger receiving region formed in the bobbin is aligned with the aperture through the frame, and the second bobbin end portion extends across the plunger receiving region to form a fixed gap between the bobbin and the frame. A plunger is slidably received through the aperture in the frame and into the plunger receiving region within the bobbin.

Abstract: Apparatus for method of manufacture for a solenoid frame is disclosed. A preferred embodiment of the present invention utilizes a single piece configuration having interlocking tabs and a locking mechanism for securely fastening the frame end pieces, and further including coil-assembly-retention locks for securely engaging the solenoid coil.

Abstract: A method of fitting an overload coil for a circuit breaker onto a bobbin assembly. The overload coil is pre-formed into a helical coil with a pair of terminals and a coil sub-assembly is formed by attaching electrical leads to the terminals of the coil. Separate base and top halves of a split bobbin are assembled so that the pre-formed coil of the coil sub-assembly is held captive therebetween. A sensing tube is fitted through an aperture extending axially through the assembled split bobbin, and the sensing tube is mounted onto a magnetic cradle. Different top halves, such as a voltage coil top half and a high inrush top half may be fitted into a common base half. The invention extends to a bobbin assembly for a circuit breaker, as well as to an overload coil sub-assembly.

Abstract: The electromagnet system has a bent yoke and a round core which has a constant cross-section from a pole end towards a mounting end, and the core has an outwardly expanded tapered section at the mounting end. The core is inserted from the outside into a hole in the yoke, with the pole end being first, and the core is adjusted and fixed by means of pulse-like shocks. Thus, the core is joined to the yoke by a force fit which is a uniformly reliable firm seat.

Abstract: An electromagnetic lock employs a pre-wound bobbin which is forced onto the E-shaped lamination stack of a magnetic core. The housing is configured in two longitudinal sections which are relatively pivotal to provide access for circuitry within the housing for both an outswinging and an inswinging door lock installation. The electromagnet also employs a circuit to sense the power supply to the electromagnet and to automatically select the operating voltage of the electrical coil.

Abstract: A magnet switch for a starter device includes a plunger on which a sufficient pull force can be exerted. The plunger drives a movable contact, and is guided by a sleeve so as to move therealong. An excited coil wound on a bobbin is provided around an outer periphery of the sleeve. The exciting coil is covered by a cylindrical frame of a magnetic material, and a bottom plate portion of the frame has an opening fitted on the outer periphery of the sleeve. A cushion spring is interposed between the bottom plate portion of the frame and the bobbin to hold the exciting coil in a predetermined position. The cushion spring has an annular portion disposed in contact with the bottom plate portion and the outer periphery of the sleeve, and a magnetic path can be formed between the annular portion and the plunger.

Abstract: The invention is directed to a connection that can be easily made, produced at little expense, and can carry heavy loads. A housing block has a receiving bore with undercut portions, embodied by a groove, that extend over circumferential regions of this bore. A magnet valve has primary flange segments formed onto the valve body, which along their end face which face toward the opening of the receiving bore of the housing block are conically limited in cross section. These flange segments which extend over circumferential regions of the magnet valve body engage the undercut portions, formed in accordance with the cross section of the flange segments, in the manner of a bayonet mount type of connection. The connection is particularly suitable for use in hydraulic vehicle brake systems, where particularly strong forces between the magnet valve and the housing block must be absorbed.

Abstract: In a coil for an electromagnetic relay, a delayed response is achieved by a short-circuit tube which carries the coil member and replaces a plastic tube which is otherwise used. The short-circuit tube is extrusion coated at its ends with the coil flanges so and a thin insulating layer is provided on the short-circuit tube under the winding in the region between the flanges. The dimensions of the winding and the core are not increased while a considerable delayed response for the relay is provided.

Abstract: A solenoid-operated valve has its body formed from a plain length of pipe substantially free of any machining or shoulders. The armature and seating are inside, with the armature moving axially, and the solenoid coil is slid over the outside of the pipe. There could be a by-pass and two valves, one with a by-pass and one without, could be mounted in series in a common length of pipe.

Abstract: An electromagnet is proposed which serves in particular for actuating a fuel injection valve for fuel injection systems of internal combustion engines. The electromagnet includes a housing and a magnetic coil mounted on a core. The supply of electric current to the magnetic coil is effected via contact prongs, which protrude via insulating inserts into the housing and whose ends are yieldingly surrounded by loops embodied on contact lugs. The contact lugs are disposed on the carrier body and on the other end are electrically conductively connected with the wire ends of the magnetic coil.

Abstract: A solenoid operated directional valve comprises a plug-in type solenoid which makes electrical connection with a terminal block on the valve body via plug-in type terminals. The plug-in type terminals are on a connector element which is selectively positionable on the solenoid to select either a portion of the solenoid winding which is for 60 hertz energizing current or a portion which is for 50 hertz current.

Abstract: An electrical relay assembly is shown having a mounting base carrying a plurality of electrical terminals extending from one side thereof (for connection to associated electrical circuits) and a relay winding and armature at the other side thereof; the ends of the relay winding are effectively isolated as to prevent breakage of the wire comprising the winding due to any vibrations or shock induced as into the mounting base; the armature is provided with bearing surfaces which effectively minimize and reduce frictional resistance to movement of the armature; and a housing is illustrated as being capable of being secured by various mounting apparatus to associated support structure.

Abstract: A three-way normally closed or open solenoid-actuated valve having the solenoid coil wound on a spool and therewith inserted uncoated through a side into a solenoid housing and in place encapsulated in an epoxy resin for protecting the coil and by wedging the spool against relative movement in the housing, enabling its cylindrical bore to act as a fixed guideway for receiving and guiding a reciprocable solenoid plunger. Upper and lower O-rings, the lower encapsulated with the spool and coil, seal against leakage of fluid from the solenoid housing.

Abstract: A method of oriented feeding of nonmagnetic current-conducting components is proposed, wherein an alternating magnetic field is set up, whose induction vector is normal to the desired direction of feeding. Components are introduced into this field, one by one, and at least one closed current-conducting loop is secured in the magnetic field so that its plane is normal to the induction vector of the field and offset with respect to the geometrical center of the component introduced into the field in the direction of feeding. Oriented feeding is effected under the action of electrodynamic forces induced in the alternating magnetic field as a result of the interaction of the overlapping current circuits induced by the magnetic field in the components and in the current-conducting closed loop. The device for carrying out the proposed method comprises a source of an alternating magnetic field and a sectional plate arranged in the working area of this field, each plate section including an electric coil.

Abstract: An armature adapted for use in a voice coil or linear motor and having a conductor winding and at least one stiffening layer coaxial and coextensive with, either inside or outside, the conductor winding. The stiffening layer is formed of a multiplicity of turns of a high elastic modulus, non-magnetic fiber such as graphite. The fiber and conductor turns are all firmly bonded into a rigid, composite unitary cylinder by a substance such as epoxy impregnating the entire composite cylinder. In a preferred embodiment, the conductor turns are located between interior and exterior layers. In a preferred method for manufacturing such an armature, the composite cylinder is formed layer by layer on a rotating mandrel, impregnating each layer with epoxy resin premixed for self-hardening.