Abstract: A battery compartment assembly includes a housing and a lid configured to be removably attached to the housing. The lid includes a pair of hinges that engage a corresponding pair of openings in the housing, and a latch that engages a ridge on the housing when the lid is in the closed position. The lid also includes a pair of contacts that extend from the lid to mate with connectors of a control unit to be powered by the batteries in the assembly. A spring is included in the housing for connecting to a positive terminal of a first battery and a negative terminal of a second battery.

Abstract: A method to improve the performance of an electrically operable actuator is described. The method demagnetizes at least the core of an electromagnet to improve operation of the electrically operable actuator.

Abstract: A heated valve that has particular application for one or more of a drain valve, a pressure release valve and a bleed valve in an anode outlet unit of a fuel cell system. The valve includes a divided solenoid having at least two coils. During a normal operation of the valve, current is applied to both coils. During a heat-up operation of the valve, current is applied to only one of the coils so that the reduced resistance of a single coil provides increased heat.

Abstract: A valve actuator includes a motor which drives a gear assembly for selectively imparting motion to a valve member. The valve actuator includes a reed switch for use in controlling a pump or control system for a plurality of pumps in response to initialization of the valve actuator. The motion of the gear assembly causes a magnetic field to come into contact with the reed switch and either engage or disengage the reed switch.

Abstract: A multi-force actuator valve invention including a radially polarized permanent magnet, a pair of associated electromagnetic coils, a movable magnetically operated armature member, a valve located to be actuated by movement of the armature member, and mechanical force exerting means located and positioned to exert a force on the movable magnetically operated armature member. The multi-force actuator valve invention has electrical current control input means for supplying and controlling electrical current to the electromagnetic coils for controlling the movable magnetically operated armature member. The electrical current control input means for supplying and controlling electrical current to the electromagnetic coils for controlling the movable magnetically operated armature member has a plurality of types of controls that allow the multi-force actuator valve invention to operate or function as a plurality of types of valves such as a latching valve or a modulating valve.

Abstract: A valve is provided. The valve includes a plunger, a chamber having a first region and a second region where the plunger moves back and forth, a first electromagnet and a second electromagnet which are located around the first region and the second region to apply a magnetic field to the plunger, a fluid inlet through which a fluid enters into the chamber, located between the first region and the second region of the chamber, and a second fluid outlet located on a vertical end part of the second region away from the first region.

Abstract: An electrically controlled valve, in particular for the variable adjustment of the damper characteristic curve of a vibration damper, comprising a magnetic drive for actuating a valve slide that is guided in a housing in one moving direction, as well as a passage arranged in the housing between a valve inlet and a valve outlet for the variable volume flow control, the passage cooperating with a control edge of the valve slide. The moving direction of the valve slide is electrically reversible, thereby resulting in a comparatively simple mechanical layout for the valve for variably controlling the characteristic curve of the valve.

Abstract: A guide body for an electromagnetic valve device is provided. The device includes a coil assembly surrounding the guide body, a plunger driven by magnetic force and slidably disposed inside the guide body. The guide body slidably guides the plunger in an open/close direction of the valve body along a guide face thereof. The guide body includes a first nonmagnetic section that supports a pole body and a part of the plunger at which the pole body and the plunger oppose each other, a second nonmagnetic section that supports the valve body, and extends at least throughout a sliding range of the valve body, and a magnetic section intermediate the first and second sections so that a portion of the lines of magnetic force passes therethrough. The guide face is formed so as to coaxially support the plunger and the valve body displaceable in the open/close direction.

Abstract: In a Valve, grid-patterned, fixed wall(s) and movable gate plate/plug are built in the hub to control the conduction area. Adjustable spring is applied to push the gate/plug firmly against the fixed wall(s). The structure alteration reduces the travel length required to switch the valve between open and closed states. Since the open/close state is self-sustaining at its last switched state due to friction, no holding energy is required in the actuator. Consequently, a small linear operation solenoid can be used in impulse mode to operate the valve. Due to its low cost, separate solenoids are used to respectively pull open and close the valve in lieu of applying an auto-direction-conversion mechanism. A bimetallic strip contact in series with a resister, packaged together in a thermal isolating tube, is used to prevent the low-duty solenoid from excessive stress-time.

Abstract: A hydraulic control valve system comprising a hydraulic valve block with a plurality of control valve segments arranged in a juxtaposed manner, each control valve segment comprising a first line, for example a pump line, a second line, for example a return line, and a displaceable valve rod adapted to open and close the first line, respectively close and open the second line to varying degrees depending on a position of the valve rod. The valve system further has a plurality of actuators arranged in a juxtaposed manner, one actuator for each valve segment, each actuator comprising an electrical motor connected to a respective said valve rod through a coupling mechanism.

Abstract: A digital valve assembly controls a reciprocating valve element. The valve assembly has two actuator valve spools that are activated selectively by three solenoids to either of two operating positions for each valve spool. Fluid flow metering areas for the valve spools are calibrated for desired reciprocating valve timing, lift rates and closing rates.

Abstract: A damper actuator motor device includes a fan brake device which is secured to a motor rotor shaft and is configured to reduce motor rotation speed in a preferential direction. Preferably, the fan brake device has an asymmetric configuration, and is adapted to gather air radially in an enclosed cavity and discharge it axially in one direction. The fan device preferably is adapted to project a size that takes up more than half of the space of the cavity. When the motor is back driven, the fan brake device causes differentially pressure and air resistance in a confined area, producing a drag and braking force that increases with motor speed. The invention can be applied to motor actuators used to control air dampers and other valves in gas or fluid delivery systems. The invention can also be used to reduce water hammer in water delivery systems.

Abstract: The present invention is a supplementary control valve device including a valve body, which may be reversibly displaced in a guide, in the direction of the longitudinal axis, between an opening solenoid and a closing solenoid. The magnetic yoke of the opening solenoid includes at least one extension, with direct contact with a web, connected to the guide on the end thereof facing away from the extension.

Abstract: A valve comprises an electromagnetic actuator including a solenoid. The solenoid includes at least one core, wherein the core is an “E” shaped core or a “U” shaped core and an anchor plate. The solenoid further comprises at least one coil disposed within the core and connected to a set of power electronics to supply current to the coils. The actuator further comprises a plunger connected to the anchor plate and at least one spring configured to guide the plunger. The opening and closing of the valve is controlled by passing current through the coil and the valve is used in acompressor.

Abstract: An actuator assembly comprised of: a first coil and a second coil, each with a bore and a producing a magnetic flux when subject to an electric signal; a tube extending through the bores such that coils are coaxial; a magnetic pole piece within the tube and generally between the first bore and the second bore; a magnetic ring set outside of the tube and between the coils, in which the magnetic flux paths both travel through the magnetic pole piece and the magnetic ring to complete their respective magnetic paths; and a first and second axially translatable movable member within the tube and wherein the movable members each axially translate towards the magnetic pole piece in the presence of the magnetic flux such that by controlling the electric signal, proportionality can be achieved.

Abstract: A common rail fuel injector comprises a three-way control valve that controls the flow of high-pressure fuel to a fuel cavity for fuel injection. Specifically, when the control valve is transitioning to a first, on position, from a second, off position, high-pressure fuel is provided to both the fuel cavity and to a check control cavity, thereby preventing fuel injection until the control valve seats in the first, on position. Once seated in the first, on position, the control valve only provides high-pressure fuel to the fuel cavity allowing fuel injection to occur. To stop injection, the control valve is moved from the first, on position to the second, closed position. Once again, while the control valve is in the transition location between the two positions, high-pressure fuel is provided to both the fuel cavity and to the check control cavity thereby terminating injection.

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 assembly for an internal combustion engine includes a stationary permanent magnet assembly having at least one permanent magnet for generating a permanent magnetic field with a radial component and a movable coil assembly having at least one coil of electrically conductive material for generating a magnetic field with an axial component that intersects the radial component when an electrical current is applied to the at least one coil to thereby move the coil assembly with respect to the permanent magnet assembly. A valve is connected to the coil assembly for movement therewith. Electronic control of the valve assembly together with engine modifications permits the engine to dynamically switch between two-cycle and four-cycle modes of operation.

Abstract: A position control actuator system includes a control element and first and second actuators. The first and second actuators are each comprised of magneto-active twinned material. The first actuator is configured to extend and drive the control element in a first direction when the first actuator is subjected to a magnetic field. The second actuator is configured to extend and drive the control element in a second direction when the second actuator is subjected to a magnetic field. A magnetic field source subsystem is configured to extend the first actuator to drive the control element in the first direction, and extend the second actuator to drive the control element in the second direction.

Abstract: A solenoid-operated valve controller includes a first signal line and a second signal line, which are connected respectively to ends of a first solenoid coil and a second solenoid coil. The first solenoid coil and the second solenoid coil have other ends, which are electrically connected in common to a switch. One of the first and second solenoid coils, which corresponds to signal states of a plurality of input signals that are supplied respectively to the first and second signal lines, is selected, and the switch is turned on and off to control the selected one of the first and second solenoid coils.

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 electromagnetic valve actuating mechanism for an internal combustion engine has an axially displaceable control element with an armature plate, for opening or closing a valve. Two solenoids are arranged behind one another in the displacement direction and spaced with respect to one another. One solenoid is arranged on the side of the armature plate close to the valve and the other is on the side away from the valve. Two springs are arranged behind one another in the displacement direction, one of the springs being arranged on the side of the armature plate close to the valve and the other being arranged on the side away from the valve. The control element, which is held in a neutral position when the solenoids are currentless, is deflectable from its neutral position by energizing the solenoids.

Abstract: The invention relates to a device for electrohydraulic valve lift switching with a hydraulically activatable actuating element for bringing about valve lift switching, which is connected to an oil line, whereby the action of pressurized oil on the actuating element can be controlled by an on/off valve arranged in the oil line and connected to a control device. The invention has an oil pressure metering device arranged in the oil line, which is connected to the control device, and a device for detecting the time period between activation of the on/off valve by the control device and a characteristic change in the measured oil pressure.

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: An electromechanical valve actuator for internal combustion engines is equipped with a polarized electromagnet exerting a magnetic action on a magnetic plate that is subject to a mechanical restoring action, which action can compensate for the mechanical action and maintain the plate in a distant position from the electromagnet. The actuator ensures that the displacements of the plate are controlled solely by this electromagnet and the mechanical restoring action such that the plate performs shuttle movements beginning from the distant position.

Abstract: What is disclosed is a lifting magnet assembly for a servo valve or control valve comprising a proportional magnet which acts on a valve spool of the control valve or servo valve through a tappet. Between the spool and the proportional magnet a failsafe magnet is provided which is penetrated or encompassed by the tappet of the proportional magnet.

Abstract: The invention is directed to a method and an arrangement for controlling an internal combustion engine (20) which achieve an optimal efficiency in different operating states. An opening time of an inlet valve (5) of a cylinder (1) of the engine (20) is variably adjusted. Depending upon an operating variable, especially the engine speed, two operating states of the engine (20) are distinguished. In a first operating state, during an intake operation, an opening of the inlet valve (5) is delayed. In a second operating state, a closing of the inlet valve is delayed and carried out during a compression operation.

Abstract: A method of determining timing clearance between a valve stem and a moving member using an electromagnetic actuator comprising electromagnets, an electromagnet for moving the moving member from a closed position towards an open position and an electromagnet for moving the moving member from an open position towards a closed position, each electromagnet being controlled on the basis of a reference electrical characteristic, the method comprising: controlling an electromagnet to obtain a displacement speed for a moving member as the moving member moves from one of a closed position or an open position towards the other one of an open position or a closed position; obtaining values of a reference electrical characteristic for intermediate positions of the moving member; and detecting an intermediate position at which the reference electrical characteristic is subject to a sudden change.

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: The present invention pertains to a device for controlling a valve of an internal combustion engine, the device comprising an electromechanical actuator equipped with a magnet, and a processor controlling a defluxing current generating a magnetic field opposed to the magnetic field of the magnet, characterized in that it comprises means for controlling this defluxing current as a function of the open time of the valve and means for determining the rapidity of opening and/or closing of the valve from this open time, the controlled defluxing current ensuring the determined rapidity of opening and/or closing.

Abstract: A linear control valve is disclosed regulating the flow of fluid to hydraulically activated devices, preferably a fuel injector and an engine compression release brake. The valve includes a valve member that is moveable between a first position in which the fuel injector is, at least partially, activated, a second position in which neither the fuel injector nor the engine compression release brake is activated, and a third position in which the engine compression release brake is activated. An electrical actuator providing two permanent magnets and two oppositely wound solenoid coils moves the valve member between its three positions. The polarity of the permanent magnets are oriented such that when the solenoids are energized, one solenoid coil pulls the valve member while the other solenoid coil pushes the valve member in the same direction.

Abstract: Disclosed herein is an electromagnetic apparatus for automatically and selectively supplying and shutting off fluid. The electromagnetic apparatus includes a frame unit, a through unit, a coil unit, a rotor, a casing, a shaft and a casing. The frame unit is coaxially contained in the piping or a housing forming the flow path of a fluid. The through unit has one or more through holes to form one or more flow paths through the frame unit. The coil unit is placed in the frame unit to generate an electromagnetic force. The rotor is placed to face the frame unit to selectively open and close the flow paths through interaction with the electromagnetic force generated in the coil unit. The shaft supports the rotor, and a casing supports the frame unit and forms the appearance of the apparatus.

Abstract: The invention concerns a valve operating device for an internal combustion engine, comprising a means connected to the valve and able to be displaced on a course by which, at one end of this course, the valve is in the closed position and at the other end of the course this valve is in the open position. The displacement command is performed by means of a first and a second electromagnet and spring means such that the means is near to a first electromagnet for the closed position of the valve and near to the second electromagnet for the open position of the valve. The first electromagnet is of the polarized type with a permanent magnet permitting the means to be held in the position corresponding to the closed position of the valve in the absence of current in the winding of this first electromagnet. The second electromagnet is such that this position is maintained for a non-zero current in the winding of this second electromagnet.

Abstract: An electromagnetic actuator for actuating a gas-reversing valve on a piston internal combustion engine includes two electromagnets. Each electromagnet includes a one yoke body presenting a pole face. The pole faces of the two electromagnets face each other at a distance. Each yoke body has two parallel grooves that are open toward the pole face and form a coil window with a coil disposed in the coil window. An armature is arranged to move back and forth between the pole faces counter to the force of at least one restoring spring. The two electromagnets each have a different load profile.

Abstract: A method for initializing valves of an engine having a starting apparatus is disclosed. The engine may have electromechanically actuated cylinder valves. The method comprises moving at least a first valve away from a neutral position of the first valve before the engine is rotated by said starting apparatus; and moving at least a second valve away from a neutral position of the second valve after the engine is rotated by said starting apparatus.

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: An electronically controlled valve actuator having an armature, a valve, and a coupler for coupling the actuator to the valve with motion of the armature in a first direction moving the second piston in a second direction. The actuator includes an electromagnet, an armature disposed adjacent to the electromagnetic, and a fluid-containing chamber. The fluid-containing chamber includes a first piston providing a first wall portion of the chamber and a second piston providing a second wall portion of the chamber. The first piston is coupled to the armature and the second piston is coupled to a valve. Activation of the electromagnet moves the first piston in a first direction, such motion of the first piston in the first direction driving fluid in the chamber to move the second piston in an opposite direction.

Abstract: A control apparatus controls an electromagnetically driven valve, which includes at least one of an electromagnetically driven exhaust valve for opening or closing an exhaust valve and an electromagnetically driven intake valve for opening or closing an intake valve in an internal combustion engine. The control apparatus is provided with: a first judging device for judging whether or not the electromagnetically driven valve fails in seating for valve-opening; and a fail-safe device for controlling the electromagnetically driven valve to perform an operation of valve-opening again in a same stroke if it is judged by the first judging device that the electromagnetically driven valve fails in the seating for valve-opening.

Abstract: When an internal combustion engine including an electromagnetic valve drive mechanism driving a plurality of valves is to be stopped, application of current to at least one magnet for one valve or valve group is stopped at a different timing from another valve or valve group.

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: The invention is directed to a dose control apparatus for manipulating the dosage of one or more pharmaceutical solutions emanating from an implantable drug infusion pump. The dose control apparatus has a movable core that is held in a desired position by a magnet. The apparatus has at least one coil that, when activated, motivates the core to move to a new position. The core may be held in the second position by another magnet. The apparatus may have more that one coil provide various control options. In addition, the coils may be used to determine core position or the presence and strength of an externally applied magnetic field such as that produced in an MRI. The coils may also be used to produce a magnetic field counteracting the externally applied field or to produce a degaussing field.

Abstract: It is an object of the present invention to provide a drive unit for a direct-acting valve for internal combustion engines by which a quiet internal combustion engine can be obtained with noise suppressed. This system comprises an inlet valve 8 arranged slidably near an inlet port 4 of an internal combustion engine 12 for driving the inlet port to open and close, an electromagnetic actuator 1 that drives the inlet valve to open and close, and a current control unit 11 that controls a driving current supplied to the electromagnetic actuator. The current control unit continuously supplies the driving current, having a controlled variable value, to the electromagnetic actuator based on the operation condition of the internal combustion engine.

Abstract: A hydraulic damper cylinder 270 is provided for an electromagnetic actuated internal combustion engine cylinder valve 20. The damper includes a piston 68 slidably mounted within the damper cylinder 270. The piston 68 bifurcates the cylinder 270 into a first control volume 74 and a second control volume 76. The first and second control volumes are fluidly connected by an inboard flow path 372. Along the extreme ends of travel, the flow path 372 is blocked by the piston 68 and damping occurs through fluid transfer through an outboard flow path 374.

Abstract: The invention is directed to a dose control apparatus. The apparatus has two armatures pressed against a valve seat by at least one spring. A coil induces a magnetic field that motivates the armatures against the force of the spring, thereby opening the valve. The armatures may move along a common axis in opposite directions. The apparatus may also include a core located between the armatures and a casing about the coil. The core and casing act to guide the magnetic field, reducing the power requirements for creating the field. Current may be periodically reversed in the coil to provide a degaussing field. In addition, a signal may be produced by the coil in the presence an externally applied magnetic field such as an MRI. An opposing magnetic field may be produced by the coil or the current provided to the coil may be adjusted.

Abstract: A pressure regulator has a magnet component group provided with a metal housing in which a winding and an armature are arranged, a flange composed of a synthetic plastic material and connected in an axial direction to the magnet component group, a metal guiding sleeve which is arranged in the flange for orientation and mounting of the magnet component group, a valve closing member which is actuated by the magnet component group and cooperates with a valve seat to separate a return side from a front side; a metal bushing which is connected with the housing through a metal connection and on which the valve seat is formed, the metal bushing having at least one discharge opening which leads to the return side.

Abstract: A main CPU determines whether or not there is a request for one valve driving based on an engine operating state such as an engine speed and a load factor, with reference to a control map. When it is determined that there is a request for one valve driving, it is determined whether or not there is an overlapping period between opening periods. When it is determined that there is no overlapping period, a high speed control is performed for controlling electromagnetically driven valves. When it is determined that there is no request for one valve driving, or when it is determined that there is the overlapping period, a low speed control is performed for controlling electromagnetically driven valves.

Abstract: An electromagnetic fuel injector of an internal combustion engine having a plurality of electromagnetic coils for valve driving wound separately on a bobbin in an axial direction. The bobbin has a step difference of the outer diameter so that the bobbin outer diameter in the region with the second coil to be wound thereon is smaller then the bobbin outer diameter in the region with the first coil to be wound thereon, and the bobbin inner diameter has a step difference in that the bobbin inner diameter in the region with the first coil to be wound thereon is made large partially so as to secure an annular space to interpose a seal ring therein.

Abstract: A rush adjuster which adjusts a relative position between a valve body and an armature in an axial direction so that a state of zero-rush is formed is arranged between an armature shaft and a valve shaft. At a time of starting an electromagnetic drive valve, a first starting current is applied to either one of an upper coil and a lower coil for generating electromagnetic forces for attracting the armature closer, whichever a distance with respect to the armature is shorter.

Abstract: A hydraulic damper cylinder 270 is provided for an electromagnetic actuated internal combustion engine cylinder valve 20. The damper includes a piston 68 slidably mounted within the damper cylinder 270. The piston 68 bifurcates the cylinder 270 into a first control volume 74 and a second control volume 76. The first and second control volumes are fluidly connected by an inboard flow path 372. Along the extreme ends of travel, the flow path 372 is blocked by the piston 68 and damping occurs through fluid transfer through an outboard flow path 374.

Abstract: A control unit controls an electromagnetically driven valve including a valve body, an electromagnetic drive portion and a spring so as to be opened and closed by an electromagnetic force of the electromagnetic drive portion and a spring force of the spring that is formed of a pair of gas pressure springs each urging the valve body towards a valve opening end position and a valve closing end position, respectively. The control unit includes a controller, when an operation of the valve body is stopped and held in a holding position that is one of the valve opening end position and the valve closing end position, decreases a gas pressure of one of the pair of gas pressure springs that urges the valve body towards a non-holding position opposite to the holding position so as to become lower than a gas pressure of the one of the pair of gas pressure springs that urges the valve body towards the non-holding position when the valve body is operated.