Duddeck
Michael Duddeck, Tucson, AZ US
Patent application number | Description | Published |
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20100123360 | CONNECTION METHOD FOR ROTATING RECTIFIERS ON A GENERATOR - An annular bus ring assembly for connecting main rotor windings of a generator to the exciter diodes includes a plurality of annular bus rings with tabs bent over forming plurality of pads mounted on either side of a dielectric hub. The pads of annular bus rings clocked at an angle to each other to generate a pattern of plurality of pads on a equal angle spacing on a diameter to connect to the diodes by wire rope leads and a pattern of two connection at 90° spacing to connect to main generator leads. | 05-20-2010 |
20110242710 | INTEGRAL CURRENT TRANSFORMER SHUNT RESISTOR - An electrical power system may comprise a power source, an electrical load and an interconnection path between the power source and the electrical load. At least one power-source current transformer may be positioned at the power source. At least one remote current transformer may be positioned remotely from the power-source current transformer so that a portion of the interconnection path is between the power-source and the remote current transformer. A control circuit may be interposed between the power-source and remote current transformers and may be responsive to current imbalance between the power-source and remote current transformers to disconnect the power source from the electrical load in the event of such imbalance. The at least one power-source current transformer may comprise a secondary winding having first and second ends, and a resistor connected across the first and second ends. This resistor may provide a path for current transformer secondary current to flow in the event of an open circuit failure in the control circuit or the interconnection path between the current transformer and the control circuit. Consequently voltage across the current transformer secondary may be limited to a level that will not damage the secondary windings. The control circuit may detect the open circuit failure and act to isolate the power source from the load with the minimum of time delay. The current transformer is thereby protected from open circuit failures. | 10-06-2011 |
Michael W. Duddeck, Tucson, AZ US
Patent application number | Description | Published |
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20080252155 | SPRAY COOLED V-WEDGE FOR AEROSPACE GENERATOR - A high speed generator cooling system directs a cooling oil spray through a chamber inside a coil support wedge assembly, which may be disposed adjacent to the generator coils. Heat from the generator coils may be conducted through the walls of the coil support wedge assembly and into the chamber where it is removed by the cooling oil spray passing through the chamber. The cooling oil passes through a generator rotor shaft and into a cooling passage in least one of the rotor laminations. | 10-16-2008 |
20090056498 | BALL SCREW RESETTABLE MECHANICAL DISCONNECT - A disengagement/disconnect assembly for disengaging a generator from a gear box includes an inner ball screw having an angled threading on an outer surface thereof and surrounding and operatively engaged to a rotating generator drive shaft to cause rotation of the inner ball screw, the inner ball screw having axial dog teeth engaged to corresponding teeth of the gear box drive shaft, an outer ball screw surrounding and normally rotating with the inner ball screw and having a spherical ball and an angled ball track between the inner and outer ball screws, a lock, and a brake for slowing or stopping rotation of the outer ball screw so that the inner ball screw rotates relative to the outer ball screw along the ball track and slides axially toward the lock thereby disengaging the generator from the gear box drive shaft. | 03-05-2009 |
20090184691 | DUAL PURPOSE PERMANENT MAGNET EXCITER - A permanent magnet rotor of a generator is used to excite a permanent magnet stator to generate electric power for the generator and to control a disengagement mechanism whereby the generator can disengage from an accessory, such as a gear box drive shaft, when the generator is not working properly. The permanent magnet is affixed to an outer ball screw which normally rotates with an inner ball screw that is operatively engaged to the accessory. An increased load to the permanent magnet stator slows or stops rotation of the permanent magnet rotor and outer ball screw, causing the inner ball screw to move axially from the outer ball screw and away from an accessory and toward a re-settable lock. | 07-23-2009 |
Volker W. Duddeck, Hamburg DE
Patent application number | Description | Published |
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20140281970 | Methods and apparatus for modifying audio information - A system receives audio information comprising at least one audio portion associated with an audio type, and provides a capability to modify the audio type. The system renders an amount of modification to the audio type, and renders the audio information resulting from the amount of modification to the audio type. The system provides a graphical user interface with which to render the audio information, and allows a user to modify the audio information, via the graphical user interface, by adjusting the audio type. | 09-18-2014 |