Birdi
Balwinder S. Birdi, 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 |
Balwinder Singh Birdi, Tucson, AZ US
Patent application number | Description | Published |
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20130015729 | ENHANCED SPRAY COOLING TECHNIQUE FOR WEDGE COOLINGAANM Birdi; Balwinder SinghAACI TucsonAAST AZAACO USAAGP Birdi; Balwinder Singh Tucson AZ USAANM Waddell; SimonAACI Oro ValleyAAST AZAACO USAAGP Waddell; Simon Oro Valley AZ USAANM Scherzinger; WilliamAACI Oro ValleyAAST AZAACO USAAGP Scherzinger; William Oro Valley AZ US - A wedge cooling apparatus and method for cooling a rotating machine, such as a generator, disperses a spray of cooling fluid into the wedges of the generator via a pipe that runs along the length of each of the wedges. The pipe may include a plurality of spray delivery devices to spray cooling fluid from the pipe to the inside of the wedges. The spray cooling method results in a high heat transfer coefficient of about 2000-3000 W/m | 01-17-2013 |
20130015730 | ENHANCED SPRAY COOLING TECHNIQUE FOR WEDGE COOLINGAANM Waddell; SimonAACI Oro ValleyAAST AZAACO USAAGP Waddell; Simon Oro Valley AZ USAANM Scherzinger; WilliamAACI Oro ValleyAAST AZAACO USAAGP Scherzinger; William Oro Valley AZ USAANM Birdi; Balwinder SinghAACI TucsonAAST AZAACO USAAGP Birdi; Balwinder Singh Tucson AZ USAANM Pearson; WayneAACI Oro ValleyAAST AZAACO USAAGP Pearson; Wayne Oro Valley AZ USAANM Kane; DavidAACI Oro ValleyAAST AZAACO USAAGP Kane; David Oro Valley AZ USAANM Phielix; TomAACI TucsonAAST AZAACO USAAGP Phielix; Tom Tucson AZ US - A wedge cooling apparatus and method for cooling a rotating machine, such as a generator, disperses a spray of cooling fluid into the wedges of the generator. The spray cooling method results in a high heat transfer coefficient of about 2000-3000 W/m | 01-17-2013 |
20150022034 | GENERATOR ASSEMBLY FOR HIGH AXIAL VIBRATION INPUT - A generator assembly may include a bearing liner and a bearing retainer configured to reduce vibration response in a bearing assembly under high frequency operation of a rotor. The bearing liner may be configured to provide a clearance between the bearing assembly and an adjacent housing/bearing liner to prevent high vibration output from the bearing assembly on for example, the rotor shaft. The bearing retainer may include a recess to accommodate axial movement of the bearing assembly in response to rotation of the rotor. In some embodiments, the bearing retainer may include a dampener to dampen contact of the bearing assembly with the retainer. | 01-22-2015 |
Roy Singh Birdi, Taufkirchen DE
Patent application number | Description | Published |
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20140120919 | RADIO COMMUNICATION DEVICES, NETWORK DEVICES, METHODS FOR CONTROLLING A RADIO COMMUNICATION DEVICE, AND METHODS FOR CONTROLLING A NETWORK DEVICE - A radio communication device may be provided. The radio communication device may include a generator configured to generate a signal indicating that a radio communication network is to abort a serving cell change process. | 05-01-2014 |