Aura Systems Inc.

Fernando B Morinigo

Keith O Stuart

Dennis C Bulgatz

Christopher K Sortore

Richard J Ulinski

Ethan Howard King

Stuart Reh Stampke

William C Blaire

Panajiotis Kotsianas

Carmi Goldstein

Richard Van Allen

A power generator system, including an inductive generator for producing a generator electrical signal. The inductive generator contains electrically conductive stator field coil windings and an electrically conductive ferromagnetic disk-shaped rotor. The inductive generator is configured for under-the-hood installation and includes an input crankshaft for being externally driven by a motor vehicle engine. The generator is electrically coupled to an electronic control unit which responds to amplitude and frequency variation of the electrical signal, due to fluctuations in vehicle engine speed, and produces an output power signal having substantially constant voltage, substantially constant frequency, and at least one phase. The electronic control unit includes a three-phase vector controller for regulating the generator electrical signal which charges a DC voltage bus, a processor for monitoring the voltage level of the DC voltage bus, and an AC inverter which receives the DC voltage bus voltage, converts it into the output power signal and supplies the signal to an output connector in order to accommodate the connection of electrical devices to the system. If the vehicle engine speed is idle, the system implements a throttle control mechanism, coupled to the vehicle engine throttle, to adjust the engine speed in order to provide an adequate output power signal. The system also employs a safety shut-down subsystem for terminating operations of the generator in the event of a fault condition, such as, for example, generator overheating, generator current overload, and system overload.

Mobile power generation system

A novel duel directional electromagnetic actuator includes a case, a core, an electrical current conductive coil and a field coil. The case includes a first case end, a second case end, and an interior wall extending between the first and second case ends. A chamber is defined by the interior wall. An electrical current conductive coil is disposed in the chamber coextensively adjacent the interior wall. The conductive coil has a first coil end disposed proximate the first case end, a second coil end disposed proximate the second case end, and a midpoint. The core has a first core end, a second core end, and an exterior wall extending between the first and second core ends. The exterior wall has a first region adjacent the first core end and a second region spaced from the first region and adjacent the second core end. The core is moveably received in the chamber with motion of the core occurring between the first and second case ends such that said first region traverses the conductive coil between the first coil end and the midpoint and the second region traverses the conductive coil between the second coil end and the midpoint. The conductive coil and the exterior wall are in a facing relationship with respect to each other. The field coil is in a spaced relationship to the conductive coil so that magnetic flux across the conductive coil between the first region and the interior wall is in a first direction and magnetic flux across the conductive coil between the second region and the interior wall is in an opposite direction. The field coil is arranged so that an electrical current in the conductive coil between the first coil end and the midpoint flows in an opposite direction than the current between the second coil end and the midpoint, whereby the flux current cross products of the flux in the first direction with the current and the flux current cross products of the flux in the second direction and said current are additive.

Dual-directional field coil actuator

An electromagnetically actuator is disclosed having an electromagnet, a core element, the core element having a normally biased initial spaced apart first position distal from the electromagnet when the electromagnet is off and a second stop position proximal from the electromagnet when the electromagnet is on, a first resilient member adapted to bias said core element in the normally biased first position, and a second resilient member adapted to bias the electromagnet away from the core. The first resilient member is more resilient than the second resilient member. Therefore, the core approaches the electromagnet when the electromagnet is on until the core reaches the fixed stop position, and the electromagnet subsequently approaches the core to the fixed stop position. The actuator may further include an adjustment member that engages the electromagnet so as to control the pressure of the electromagnet against the second resilient member, whereby the axial position of the electromagnet is controlled.

Electromagnetically actuated valve

An electromagnetically actuated valve is disclosed. The valve includes an upper electromagnetic element and a lower electromagnetic element in a mirrored and facing relationship to each other. The electromagnetic elements define a central channel that surrounds a vertical axis. The valve further includes an armature element that is disposed intermediate the upper and lower electromagnets. The armature element is pivotally mounted to an armature shaft. The armature shaft is perpendicular to the vertical axis. The valve further includes a coil disposed within the central channel of each of the electromagnetic elements.

Hinged armature electromagnetically actuated valve

An induction machine having ferromagnetic conducting material in the rotor is disclosed. The machine may be used as a motor, an alternator, a generator, or an alternator/starter. The machine includes a first stator and a second stator in a symmetrical mirrored relationship to the first stator such that a gap is defined intermediate the first and second stator. A disk-shaped rotor is disposed in the gap. The rotor is substantially comprised of ferromagnetic material electrically conducting in the radial direction and may include copper bars or rings embedded within the rotor.

Induction machine using ferromagnetic conducting material in rotor

A compact staggered electromagnetically actuated valve assembly is disclosed. The assembly includes a first electromagnetic actuator defining an upper horizontal surface and an outer circumference and a second electromagnetic actuator defining a vertical axis and a lower horizontal surface. The second actuator lower horizontal surface is located vertically above the first actuator upper horizontal surface and the second actuator vertical axis is disposed outside of the first actuator outer circumference. An electromagnetically actuator for a valve having a valve stem exhibiting thermal expansion is further disclosed. The actuated valve includes an electromagnet and an armature element, the armature element having a normally biased spaced apart first position distal from the electromagnet when the electromagnet is off and a second position proximal from the electromagnet when the electromagnet is on. The valve includes seating springs that carry the electromagnet. The seating springs have a degree of thermal expansion substantially equal to the degree of thermal expansion of the valve stem. The valve may further include an armature element adjustment member that interacts with the armature element such that adjustment of the armature element adjustment member causes an axial displacement of the first position.

Staggered electromagnetically actuated valve design

A compressor having an electromagnetically actuated valve is disclosed. The movement of the compressor's piston is controlled by an electromagnetically actuated valve. The valve includes an electromagnetic element having a core and a coil, and an armature. The core has a surface and an opening at the surface extending through the core. The surface also includes a continuous channel extending around the opening. The channel has a top portion of frustroconical cross-section and a bottom portion. The coil is disposed in the bottom portion. The armature element has a raised portion dimensioned to be received within the top portion of the channel. The valve shaft is disposed within the opening of the electromagnetic element and is connected to the armature. The compressor piston is connected to one end of the shaft. A support spring is disposed within the opening of the electromagnetic element, and extends from the retaining bar to the upper surface of the cylinder. Two lower springs extend from the armature element to a lower support surface. The springs bias the armature in a normally spaced apart relationship from the electromagnetic element. Therefore, applying current to the coil in the electromagnetic element causes the piston to move upward, and interrupting the current to the coil causes the piston to move downward.

Electromagnetically actuated compressor valve

A compressor is disclosed having an electromagnetic actuator for driving the piston in the compression cylinder. The actuator includes an electromagnetic element having a core and a coil. The core has an electromagnet surface and a channel extending through the core. The coil is disposed in the channel. An axially reciprocating armature element is interconnected with the piston. The armature element defines an axial stroke having a stroke midpoint and a stroke peak. The armature element also has an armature surface dimensioned to align with and correspond to the electromagnet surface at the stroke peak. The actuator also includes a primary spring disposed on one end of the armature element for biasing the armature from movement in an axial direction. A secondary spring is disposed on the opposing end of the armature element and biases the armature from movement in an opposite axial direction. The armature is biased by the springs to resonate at a pre-determined frequency. Applying current to the coil in the electromagnetic element when the armature surface passes through the stroke midpoint allows the armature to overcome losses due to friction and compression forces, and causes the armature to continue resonating at the predetermined frequency. Two actuators may be placed back-to-back to create a dual piston compressor.

Electromagnetically actuated reciprocating compressor driver

An improved electromagnetically actuated valve is disclosed. The improved valve design includes a layer of structurally stable, non-magnetic material, preferably Kapton or Chrome, disposed intermediate the core element and the electromagnetic element of the valve, and a core element and electromagnetic element fabricated from a high electrical resistive iron material. The layer of non-magnetic structurally stable material and high resistance core element serve to eliminate the hysteresis effect in the magnetic force of the valve. The core element may also include radially extending or axially extending perforations through the core element. The axial and radial perforations serve to reduce the weight of the core design and the axial perforations serve to reduce the effect of the air spring created in the gap as the core element approaches the electromagnetic element during operation of the valve.

Core design for electromagnetically actuated valve

An electromagnetic actuator is disclosed having a case fabricated of a ferromagnetic material and defining a central axis, a core disposed coaxial with the central axis, and being in slideable engagement within the case. The core includes a first end portion, a second end portion, and a central portion. The actuator further includes magnetic flux developing element mounted coaxial with the central axis and a first and a second electrical current conductor coil. The first coil is mounted in a facing relationship with the first end portion of the core and the second coil is mounted in a facing relationship with the second end portion of the core. The coils are fabricated from a ferromagnetic material and are coaxial with the central axis. The coils have a cross-sectional length in a direction perpendicular to the central axis and a width of insulating space between the turns of the coil in a direction parallel to the central axis. The length and width are selected such that the reluctance of the width of the insulating space is greater than the reluctance of the cross-sectional length of the coil wire adjacent the insulating space.

Ferromagnetic wire electromagnetic actuator

An electromagnetically actuated valve is disclosed having an upper electromagnetic element and a lower electromagnetic element, each of the elements having a toroidal configuration or an annular configuration with a U-shaped cross-section. The elements each define a central chamber and a central channel. The upper and lower electromagnetic elements are in a mirrored relationship to each other. The valve also includes a core element having an annular horizontal cross-section and is disposed intermediate the upper and lower electromagnetic elements. A coil is disposed within the central channel of each of the electromagnetic elements. A valve stem is disposed within the central chamber of the electromagnetic elements. A spring is disposed within the central chamber of the electromagnetic elements for biasing the electromagnetic elements in a neutral position. A connecting plate connects the core elements to the valve stem. Applying current to the coil in the upper electromagnetic element causes the valve to close, and interrupting the current to the coil in the upper electromagnetic element and applying current to the coil in the lower electromagnetic element causes the valve to open.

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Los Angeles, CA, United States of America

Fernando B Morinigo