31
Gregory I Rozman, Jacek F Gieras: Electric motor for fuel pump with improved shutdown features. Hamilton Sundstrand Corporation, Carlson Gaskey & Olds PC, June 26, 2012: US08209107 (1 worldwide citation)

An electric motor for a fuel pump is provided with a shutdown switch positioned intermediate an inverter, and its control coil. In this location, the shutdown function can be achieved without heavy components. In another feature, when the fuel pump is shut down, a signal is sent upstream to a voltag ...


32
Jacek F Gieras, Gregory I Rozman: Transverse regulated flux machine. Hamilton Sundstrand Corporation, Carlson Gaskey & Olds PC, October 30, 2012: US08299677 (1 worldwide citation)

A machine has a rotor to be associated with a shaft. The rotor is provided with permanent magnets. A stator has pole pieces, including a main winding and flux diverters separating the main winding from a control coil. Control is provided for controlling the power passing through the control coil. Th ...


33
Lubomir A Ribarov, Jacek F Gieras: Coaxial contra-rotating motors for differential landing gear steering. JHamilton Sundstrand Corporation, Carlson Gaskey & Olds PC, December 2, 2014: US08899516 (1 worldwide citation)

A landing gear for an aircraft has a pair of spaced wheels, and a drive and steering arrangement operable to drive each of the wheels in either rotational direction. The drive and steering arrangement includes two permanent magnet rotors, with each of the permanent magnet rotors connected to rotate ...


34
Gregory I Rozman, Jacek F Gieras: Hybrid planar common-mode choke. Hamilton Sundstrand Corporation, Kinney & Lange P A, April 19, 2016: US09318253 (1 worldwide citation)

A common-mode choke includes a plurality of hybrid core inductors and a printed circuit board. Each of the plurality of hybrid core inductors includes a first core made of a first material, a second core made of a second material, and at least one common coil configured to generate a magnetic field ...


35
Jacek F Gieras, Gregory I Rozman: Transverse regulated flux alternator. Hamilton Sundstrand Corporation, Carlson Gaskey & Olds, June 11, 2013: US08461732 (1 worldwide citation)

An alternator has a rotor to be associated with a prime mover shaft and driven for rotation. The rotor is provided with permanent magnets. A stator has pole pieces, including a main winding and flux diverters separating the main winding from a control coil. Control is provided for controlling the po ...


36
Gregory I Rozman, Jacek F Gieras: Rotating transformers for electrical machines. Rosemount Aerospace, Locke Lord, Scott D Wofsy, Christopher J CilliƩ, October 17, 2017: US09793046 (1 worldwide citation)

A rotary transformer for an electrical machine includes a rotary printed circuit board and a stator printed circuit board. The rotary printed circuit board is operatively connected to the stator printed circuit board for relative rotation with respect to the stator printed circuit board. A conductor ...


37
Gregory I Rozman, Vietson M Nguyen, Jacek F Gieras, Sastry V Vedula: Power generating system with flux regulated generator. Hamilton Sundstrand Corporation, Stephen G Mican, April 30, 2013: US08432137 (1 worldwide citation)

A method for generating and controlling power by means of at least one controlled permanent magnet machine (PMM) with a permanent magnet (PM) rotor and a stator with a magnetic flux diverter circuit for controlling the output of the PMM, comprises the steps of: rotating the PM rotor at a velocity su ...


38
Jacek F Gieras, Pei Yuan Peng, Bryan Siewert: Magnetic door coupling device for an elevator system. Otis Elevator Company, Carlson Gaskey & Olds PC, June 19, 2012: US08201665 (1 worldwide citation)

An exemplary magnetic coupling device (30) useful for coupling elevator doors includes a core (40) having an exterior surface. An active portion (48) of the surface is configured to direct a magnetic flux associated with the core in a desired direction for facilitating elevator door coupling. An int ...


39
Jacek F Gieras, Gregory I Rozman: Compact electromechanical actuator. Hamilton Sundstrand Corporation, Carlson Gaskey & Olds PC, March 5, 2013: US08390160 (1 worldwide citation)

An electromechanical actuator for controlling the position of an aircraft component has a linear actuator to be driven to position a component. A transverse flux motor drives the linear actuator to move in a linear direction and control the position of the component.


40
Gregory I Rozman, Jacek F Gieras, Steven J Moss: Electric power generating system with a synchronous generator and tunable filter. Hamilton Sundstrand Corporation, Snell & Wilmer L, May 29, 2018: US09985562 (1 worldwide citation)

A synchronous generator may comprise a rotor and a stator. The stator may comprise a first armature winding configured to output a first three-phase voltage, a second armature winding configured to output a second three-phase voltage, and a first variable inductor, wherein the first variable inducto ...