1
Gregory I Rozman, Albert L Markunas, Paul E Nuechterlein: Starter/generator system with variable-frequency exciter control. Sundstrand Corporation, Marshall O Toole Gerstein Murray & Borum, January 14, 1997: US05594322 (106 worldwide citation)

A control for a brushless generator is operable in a starting mode of operation to convert electrical power into motive power for starting a prime mover. The control applies AC power to an exciter field winding at a first frequency at the initiation of a start sequence and thereafter decreases the f ...


2
Gregory I Rozman, Albert L Markunas, James A Shippling: Control for a brushless generator. Sundstrand Corporation, Marshall O Toole Gerstein Murray & Bicknell, February 20, 1996: US05493200 (79 worldwide citation)

A control for a brushless generator operable in starting and generating modes supplies combined AC and DC power to an exciter field winding of the brushless generator during operation in the starting mode. The magnitude of a parameter of the AC power is decreased with increasing rotor speed during o ...


3
Kenneth R Carr, Gregory I Rozman, Albert L Markunas, Michael J Hanson, Leland E Weber, James A Shippling, Malcolm J McArthur, Vijay K Maddali, Paul E Nuechterlein, Alexander Cook, Vietson Nguyen, Mario R Rinaldi: Engine starting system utilizing multiple controlled acceleration rates. Sundstrand Corporation, Jeffery J Makeever, July 4, 1995: US05430362 (77 worldwide citation)

A control for operating an electromagnetic machine in a starting mode of operation wherein the main armature winding of the machine receives electrical power from a controllable power source during the starting mode of operation, comprises a circuit for detecting a magnitude of a parameter of power ...


4
Gregory I Rozman, Vijay K Maddali, Albert L Markunas: Rotor position detector with back EMF voltage estimation. Sundstrand Corporation, Marshall O Toole Gerstein Murray & Borun, January 24, 1995: US05384527 (77 worldwide citation)

A detector for detecting rotor position of a brushless generator having a motive power shaft and a main generator portion having a set of armature phase windings capable of receiving AC power and developing a back EMF voltage during operation in a starting mode, includes a circuit coupled to the set ...


5
Gregory I Rozman, Albert L Markunas, Leland E Weber: Rotor position detector. Sundstrand Corporation, Jeffery J Makeever, October 24, 1995: US05461293 (63 worldwide citation)

A detector for detecting rotor position of a brushless generator includes a shaft pulse encoder which develops a cycle pulse once per revolution of a motive power shaft and a circuit coupled to armature phase windings of a permanent magnet generator of the brushless generator for deriving a number o ...


6
Gregory I Rozman, Timothy F Glennon, Alexander Cook: Low voltage aircraft engine starting system. Sundstrand Corporation, Whitham & Marhoefer, October 8, 1991: US05055764 (61 worldwide citation)

In a system for starting an aircraft turbine from a low voltage direct current power supply, the low voltage power supply is coupled by an invertor to the turbine's a.c. generator. The generator operates as a motor during starting. The invertor is initially coupled directly to the generator during s ...


7
Gregory I Rozman, Albert L Markunas, Alexander Cook, Vietson Nguyen: Starter/generator system with DC link current control. Sundstrand Corporation, Jeffery J Makeever, December 3, 1996: US05581168 (54 worldwide citation)

A synchronous generator usable in both a starting mode of operation and a generating mode of operation includes a permanent magnet generator having a permanent magnet and an armature winding rotatable with respect to the permanent magnet, an exciter portion having an exciter armature winding and an ...


8
Gregory I Rozman, Albert L Markunas, Michael J Hanson, Leland E Weber: Position-and-velocity sensorless control for starter generator electrical system using generator back-EMF voltage. Sundstrand Corporation, Marshall O Toole Gerstein Murray & Bicknell, February 27, 1996: US05495162 (49 worldwide citation)

A detector for detecting rotor position of a brushless generator having a motive power shaft, a permanent magnet generator (PMG) having a set of armature phase windings and a main generator portion having a set of armature phase windings includes a circuit coupled to the armature phase windings of t ...


9
Gregory I Rozman, Albert L Markunas: Variable speed constant frequency start system with selectable input power limiting. Sunstrand Corporation, Wood Phillips Mason Recktenwald & Vansanten, August 14, 1990: US04949021 (41 worldwide citation)

The problem of providing an engine starting system from any one of a plurality of input power sources is solved with an engine start control apparatus operating a generator as a synchronous motor and employing input power limiting. The motor receives power from a main inverter and an excitation inve ...


10
Gregory I Rozman, Albert L Markunas, Michael J Hanson: Control for a brushless generator operable in generating and starting modes. Sundstrand Corporation, Marshall O Toole Gerstein Murray & Bicknell, February 27, 1996: US05495163 (40 worldwide citation)

A detector for detecting rotor position of a brushless generator having a motive power shaft, a permanent magnet generator (PMG) having a set of armature phase windings and a main generator portion having a set of armature phase windings includes a circuit coupled to the armature phase windings of t ...