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公开(公告)号：US10539250B2
公开(公告)日：2020-01-21
申请号：US15960743
申请日：2018-04-24
发明人： Deepak Pitambar Mahajan , Joseph Mintzer, III , Govind Yadav , Renukaprasad N , Varun Anand , Kevin A. K. Jones
摘要： A high vibration, high-cycle, pulse width modulated (PWM) solenoid actuated valve assembly includes a valve housing and a solenoid actuator. The solenoid actuator is coupled to the valve housing and includes a solenoid housing, a bobbin assembly, a coil, an armature, a glide structure, an actuation rod, and an anti-rotation guide structure. The glide structure is disposed at least partially within the armature and between the armature and the inner surface of the yoke. The actuation rod is coupled to, and is axially movable with, the armature, it also extends into the valve housing and has a ball valve integrally formed thereon. The anti-rotation guide structure is disposed within the valve housing and surrounds at least a portion of the actuation rod. At least the actuation rod and the anti-rotation guide each have structural features formed thereon that mate with each other and prevent rotation of the actuation rod and the armature.
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公开(公告)号：US11411485B2
公开(公告)日：2022-08-09
申请号：US17092507
申请日：2020-11-09
发明人： Ramakrishna Rao P.V , Varun Ananda , Subhashree Rajagopal , Govind Yadav , Renukaprasad N , Deepak Mahajan , Sivanagamalleswara Bavisetti , Jijo Thomas
IPC分类号： H02K41/06
摘要： A multi degree-of-freedom electromagnetic machine includes an outer case, an inner case, a stator, stator windings, a voice coil winding, a tilt magnet, a rotor, and rotor magnets. The inner case is disposed within an inner cavity of the outer case and is mounted to rotate relative to the outer case about one or more rotational axes. The stator is fixedly mounted within the inner case, and the stator windings are wound thereon. The voice coil winding is fixedly coupled to either the inner surface of the outer case or the outer surface of the inner case. The tilt magnet is fixedly coupled to either the outer surface of the inner case or the inner surface of the outer case. The rotor is rotationally mounted within the inner case and is operable to rotate, relative to the stator, about a rotational axis.
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公开(公告)号：US20210021187A1
公开(公告)日：2021-01-21
申请号：US16511419
申请日：2019-07-15
发明人： Deepak Pitambar Mahajan , Renukaprasad N , Ramakrishna Rao P.V , Subhashree Rajagopal , Govind Yadav
摘要： A multi-degree of freedom electromagnetic machine includes a spherical body, an outer structure, a plurality of magnets, and a plurality of windings. Each of the plurality of windings includes a flexible dielectric substrate and an electrical conductor. The flexible dielectric substrate has an inner surface and an outer surface, and the inner surface of the flexible substrate facies the outer surface of the spherical body. The electrical conductor is disposed on at least one of the inner or outer surfaces of the flexible dielectric substrate.
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公开(公告)号：US20190323623A1
公开(公告)日：2019-10-24
申请号：US15960743
申请日：2018-04-24
发明人： Deepak Pitambar Mahajan , Joseph Mintzer, III , Govind Yadav , Renukaprasad N , Varun Anand , Kevin A.K. Jones
摘要： A high vibration, high-cycle, pulse width modulated (PWM) solenoid actuated valve assembly includes a valve housing and a solenoid actuator. The solenoid actuator is coupled to the valve housing and includes a solenoid housing, a bobbin assembly, a coil, an armature, a glide structure, an actuation rod, and an anti-rotation guide structure. The glide structure is disposed at least partially within the armature and between the armature and the inner surface of the yoke. The actuation rod is coupled to, and is axially movable with, the armature, it also extends into the valve housing and has a ball valve integrally formed thereon. The anti-rotation guide structure is disposed within the valve housing and surrounds at least a portion of the actuation rod. At least the actuation rod and the anti-rotation guide each have structural features formed thereon that mate with each other and prevent rotation of the actuation rod and the armature.
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公开(公告)号：US20160161120A1
公开(公告)日：2016-06-09
申请号：US15045322
申请日：2016-02-17
发明人： Sunit Kumar Saxena , Deepak Pitambar Mahajan , Renukaprasad N , Srikant Varma Poosapati , Milan Rajne
IPC分类号： F23Q3/00
摘要： An ignition exciter system includes an igniter, a step-up transformer, a switch device, and a spark-sustain capacitor. The igniter has a spark gap across which a spark may be generated. The step-up transformer has a primary winding that is adapted to selectively receive direct current (DC) from a DC source, and a secondary winding that is coupled to the igniter. The switch device is coupled to the primary winding and is configured to selectively operate in an ON state, in which DC may flow through the primary winding, and an OFF state, in which DC may not flow through the primary winding. The spark-sustain capacitor is coupled to the igniter and is configured to charge from a DC source when the switch device is operating in the ON state, and at least selectively discharge across the spark gap when the switch device is operating in the OFF state.
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公开(公告)号：US20220014085A1
公开(公告)日：2022-01-13
申请号：US16999539
申请日：2020-08-21
摘要： A hybrid spherical motor includes a first gear box, a second gear box, a yoke arm, a brushless direct current (BLDC) motor, a spherical stator, and a spherical armature. The split armature, in response to the spherical stator being energized, rotates about a first rotational axis, thereby causing the first gear box input connection and the second gear box input connection to rotate about the first rotational axis, and the yoke arm rotates about the first rotational axis in response to the first gear box input connection and the second gear box input connection being rotated about the first rotational axis, whereby the BLDC motor rotates about the first rotational axis.
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公开(公告)号：US11171553B2
公开(公告)日：2021-11-09
申请号：US16518533
申请日：2019-07-22
发明人： Deepak Pitambar Mahajan , Sivanagamalleswara Bavisetti , Ramakrishna Rao P. V , Subhashree Rajagopal , Renukaprasad N
摘要： A stepper motor includes a rotor, a stator, a plurality of stator windings, and a plurality of permanent magnets. The permanent magnets are coupled to the outer surface of the rotor and are spaced apart from the plurality of stator poles, and each permanent magnet is shaped like an arc having an arc length and is circumferentially spaced apart from two adjacent permanent magnets by a spacing angle. In some instance, the arc length of each permanent magnet is equal, and the spacing angles are not all equal. In other instances, the arc length of two or more of the permanent magnets is unequal to the arc lengths of the other permanent magnets, and the spacing angles are not all equal.
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公开(公告)号：US20210234452A1
公开(公告)日：2021-07-29
申请号：US17092507
申请日：2020-11-09
发明人： Ramakrishna Rao P.V , Varun Ananda , Subhashree Rajagopal , Govind Yadav , Renukaprasad N , Deepak Mahajan , Sivanagamalleswara Bavisetti , Jijo Thomas
IPC分类号： H02K41/06
摘要： A multi degree-of-freedom electromagnetic machine includes an outer case, an inner case, a stator, stator windings, a voice coil winding, a tilt magnet, a rotor, and rotor magnets. The inner case is disposed within an inner cavity of the outer case and is mounted to rotate relative to the outer case about one or more rotational axes. The stator is fixedly mounted within the inner case, and the stator windings are wound thereon. The voice coil winding is fixedly coupled to either the inner surface of the outer case or the outer surface of the inner case. The tilt magnet is fixedly coupled to either the outer surface of the inner case or the inner surface of the outer case. The rotor is rotationally mounted within the inner case and is operable to rotate, relative to the stator, about a rotational axis.
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公开(公告)号：US10354788B2
公开(公告)日：2019-07-16
申请号：US15796999
申请日：2017-10-30
IPC分类号： H01F7/16
摘要： A universal solenoid actuator includes a housing, a flange, a single armature, a first rod, a second rod, a first coil, and a second coil. The housing defines a cavity that is devoid of permanent magnets. The flange comprises a magnetic material and divides the cavity into a first cavity portion and a second cavity portion. The single armature extends through, and is movable within, the armature opening. The first rod and second rods are coupled to opposite ends of the single armature and are moveable therewith. The first and second coils are wound such that: when the first coil is electrically energized, a first force is generated that causes the single armature to move in a first direction, and when the second coil is electrically energized, a second force is generated that causes the single armature to move in a second direction.
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公开(公告)号：US20230124875A1
公开(公告)日：2023-04-20
申请号：US17557798
申请日：2021-12-21
摘要： An axial flux motor may include a motor housing, a shaft rotatably mounted in the housing, and a stator mounted in the motor housing, and having a stator ring and a through-hole through which the shaft extends. Two rotors may be mounted on the shaft within the motor housing on opposing sides of the stator, each rotor having a plurality of magnets arranged radially on a stator-facing surface thereof. In addition, magnet wire may be wound on portions of the stator, the magnet wire comprising an inner coolant passage disposed within a copper tube, and a green glass coating on an outer surface of the copper tube, the green glass coating comprising glass solids, one or more of surfactants, solvents, and polymers.
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