Patents by Inventor Wayne Nigel Owen Turnbull
Wayne Nigel Owen Turnbull has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6720687Abstract: A gas cooled dynamoelectric machine is provided that is comprised of a rotor, a rotor winding comprising axially extending coils and concentric endwindings, and a plurality of spaceblocks located between adjacent endwindings thereby to define a plurality of cavities, each bounded by adjacent spaceblocks and adjacent endwindings. To enhance the heat transfer rate from the copper end turns of the field endwinding region, at least one spaceblock has a trailing edge or downstream wall contoured to reduce generated wake. In a preferred embodiment, the trailing edge has an aerodynamic contour to reduce the extent and strength of the generated wake.Type: GrantFiled: December 22, 2000Date of Patent: April 13, 2004Assignee: General Electric CompanyInventors: Samir Armando Salamah, Todd Garrett Wetzel, Christian Lee Vandervort, Emil Donald Jarczynski, Wayne Nigel Owen Turnbull
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Patent number: 6617749Abstract: A gas cooled dynamoelectric machine is provided that is comprised of a rotor, a rotor winding comprising axially extending coils and concentric endwindings, and a plurality of spaceblocks located between adjacent endwindings thereby to define a plurality of cavities, each bounded by adjacent spaceblocks and adjacent endwindings. To enhance the heat transfer rate from the copper end turns of the field endwinding region, the downstream wall of at least one spaceblock is contoured to lower a suction pressure developed at the trailing edge of the spaceblock. In a preferred embodiment, the downstream wall of the spaceblock has a re-entrant contour to enhance the rotating cavity cooling flow.Type: GrantFiled: December 22, 2000Date of Patent: September 9, 2003Assignee: General Electric CompanyInventors: Samir Armando Salamah, Todd Garrett Wetzel, Christian Lee Vandervort, Emil Donald Jarczynski, Wayne Nigel Owen Turnbull
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Patent number: 6495943Abstract: A gas cooled dynamoelectric machine is provided that is comprised of a rotor, a rotor winding comprising axially extending coils and concentric endwindings, and a plurality of spaceblocks located between adjacent endwindings thereby to define a plurality of cavities, each bounded by adjacent spaceblocks and adjacent endwindings. To enhance the heat transfer rate from the copper end turns of the field endwinding region, at least one scoop structure is provided adjacent the radially inner end of a cavity facing surface of at least one spaceblock for intercepting and redirecting coolant flow into the respective cavity. The spaceblock itself may have curved upstream and/or downstream surfaces for facilitating circulating coolant flow.Type: GrantFiled: December 19, 2000Date of Patent: December 17, 2002Assignee: General Electric CompanyInventors: Todd Garrett Wetzel, Emil Donald Jarczynski, Christian Lee Vandervort, Samir Armando Salamah, Wayne Nigel Owen Turnbull
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Patent number: 6465917Abstract: A gas cooled dynamoelectric machine is provided that is comprised of a rotor, a rotor winding comprising axially extending coils and concentric endwindings, and a plurality of spaceblocks located between adjacent endwindings thereby to define a plurality of cavities, each bounded by adjacent spaceblocks and adjacent endwindings. To enhance the heat transfer rate from the copper end turns of the field endwinding region, at least one flow deflector structure is provided on a cavity facing surface of at least one spaceblock for intercepting and redirecting circulating coolant flow towards a central region of the respective cavity.Type: GrantFiled: December 19, 2000Date of Patent: October 15, 2002Assignee: General Electric CompanyInventors: Todd Garrett Wetzel, Emil Donald Jarczynski, Christian Lee Vandervort, Samir Armando Salamah, Wayne Nigel Owen Turnbull
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Patent number: 6452294Abstract: A gas cooled dynamoelectric machine is provided that is comprised of a rotor, a rotor winding comprising axially extending coils and concentric endwindings, and a plurality of spaceblocks located between adjacent endwindings thereby to define a plurality of cavities, each bounded by adjacent spaceblocks and adjacent endwindings. To enhance the heat transfer rate from the copper end turns of the field endwinding region, cavity facing surface(s) of the endwinding and/or the spaceblock have a non-planar surface profile to increase surface area, improve turbulent mixing on the surface, and/or provide boundary layer breakup.Type: GrantFiled: December 19, 2000Date of Patent: September 17, 2002Assignee: General Electric CompanyInventors: Christian Lee Vandervort, Todd Garrett Wetzel, Emil Donald Jarczynski, Samir Armando Salamah, Wayne Nigel Owen Turnbull
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Patent number: 6417586Abstract: A gas cooled dynamoelectric machine is provided that includes a rotor having a body portion, axially extending coils, endwindings, and a plurality of spaceblocks disposed between the endwindings, so that a plurality of cavities are defined between mutually adjacent endwindings and spaceblocks. To cool the endwindings, at least one of the spaceblocks has a radially-extending duct with an outlet opening disposed to direct cooling gas flowing therethrough generally in the direction of the central region of the adjacent cavity.Type: GrantFiled: December 19, 2000Date of Patent: July 9, 2002Assignee: General Electric CompanyInventors: Emil Donald Jarczynski, Todd Garrett Wetzel, Christian Lee Vandervort, Samir Armando Salamah, Wayne Nigel Owen Turnbull
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Publication number: 20020079753Abstract: A gas cooled dynamoelectric machine is provided that is comprised of a rotor, a rotor winding comprising axially extending coils and concentric endwindings, and a plurality of spaceblocks located between adjacent endwindings thereby to define a plurality of cavities, each bounded by adjacent spaceblocks and adjacent endwindings. To enhance the heat transfer rate from the copper end turns of the field endwinding region, one or more of the spaceblocks are formed from or coated with a high thermal conductivity material to improve heat transfer from the endwindings engaged therewith.Type: ApplicationFiled: December 22, 2000Publication date: June 27, 2002Inventors: Wayne Nigel Owen Turnbull, Todd Garrett Wetzel, Christian Lee Vandervort, Samir Armando Salamah, Emil Donald Jarczynski
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Publication number: 20020079784Abstract: A gas cooled dynamoelectric machine is provided that is comprised of a rotor, a rotor winding comprising axially extending coils and concentric endwindings, and a plurality of spaceblocks located between adjacent endwindings thereby to define a plurality of cavities, each bounded by adjacent spaceblocks and adjacent endwindings. To enhance the heat transfer rate from the copper end turns of the field endwinding region, the downstream wall of at least one spaceblock is contoured to lower a suction pressure developed at the trailing edge of the spaceblock. In a preferred embodiment, the downstream wall of the spaceblock has a re-entrant contour to enhance the rotating cavity cooling flow.Type: ApplicationFiled: December 22, 2000Publication date: June 27, 2002Inventors: Samir Armando Salamah, Todd Garrett Wetzel, Christian Lee Vandervort, Emil Donald Jarczynski, Wayne Nigel Owen Turnbull
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Publication number: 20020079752Abstract: A gas cooled dynamoelectric machine is provided that is comprised of a rotor, a rotor winding comprising axially extending coils and concentric endwindings, and a plurality of spaceblocks located between adjacent endwindings thereby to define a plurality of cavities, each bounded by adjacent spaceblocks and adjacent endwindings. To enhance the heat transfer rate from the copper end turns of the field endwinding region, at least one spaceblock has a trailing edge or downstream wall contoured to reduce generated wake. In a preferred embodiment, the trailing edge has an aerodynamic contour to reduce the extent and strength of the generated wake.Type: ApplicationFiled: December 22, 2000Publication date: June 27, 2002Inventors: Samir Armando Salamah, Todd Garrett Wetzel, Christian Lee Vandervort, Emil Donald Jarczynski, Wayne Nigel Owen Turnbull
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Publication number: 20020074872Abstract: A gas cooled dynamoelectric machine is provided that is comprised of a rotor, a rotor winding comprising axially extending coils and concentric endwindings, and a plurality of spaceblocks located between adjacent endwindings thereby to define a plurality of cavities, each bounded by adjacent spaceblocks and adjacent endwindings. To enhance the heat transfer rate from the copper end turns of the field endwinding region, at least one scoop structure is provided adjacent the radially inner end of a cavity facing surface of at least one spaceblock for intercepting and redirecting coolant flow into the respective cavity. The spaceblock itself may have curved upstream and/or downstream surfaces for facilitating circulating coolant flow.Type: ApplicationFiled: December 19, 2000Publication date: June 20, 2002Inventors: Todd Garrett Wetzel, Emil Donald Jarczynski, Christian Lee Vandervort, Samir Armando Salamah, Wayne Nigel Owen Turnbull
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Publication number: 20020074873Abstract: A gas cooled dynamoelectric machine is provided that includes a rotor having a body portion, axially extending coils, endwindings, and a plurality of spaceblocks disposed between the endwindings, so that a plurality of cavities are defined between mutually adjacent endwindings and spaceblocks. To cool the endwindings, at least one of the spaceblocks has a radially-extending duct with an outlet opening disposed to direct cooling gas flowing therethrough generally in the direction of the central region of the adjacent cavity.Type: ApplicationFiled: December 19, 2000Publication date: June 20, 2002Inventors: Emil Donald Jarczynski, Todd Garrett Wetzel, Christian Lee Vandervort, Samir Armando Salamah, Wayne Nigel Owen Turnbull
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Publication number: 20020074869Abstract: A gas cooled dynamoelectric machine is provided that is comprised of a rotor, a rotor winding comprising axially extending coils and concentric endwindings, and a plurality of spaceblocks located between adjacent endwindings thereby to define a plurality of cavities, each bounded by adjacent spaceblocks and adjacent endwindings. To enhance the heat transfer rate from the copper end turns of the field endwinding region, at least one flow deflector structure is provided on a cavity facing surface of at least one spaceblock for intercepting and redirecting circulating coolant flow towards a central region of the respective cavity.Type: ApplicationFiled: December 19, 2000Publication date: June 20, 2002Inventors: Todd Garrett Wetzel, Emil Donald Jarczynski, Christian Lee Vandervort, Samir Salamah, Wayne Nigel Owen Turnbull
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Publication number: 20020074870Abstract: A gas cooled dynamoelectric machine is provided that is comprised of a rotor, a rotor winding comprising axially extending coils and concentric endwindings, and a plurality of spaceblocks located between adjacent endwindings thereby to define a plurality of cavities, each bounded by adjacent spaceblocks and adjacent endwindings. To enhance the heat transfer rate from the copper end turns of the field endwinding region, cavity facing surface(s) of the endwinding and/or the spaceblock have a non-planar surface profile to increase surface area, improve turbulent mixing on the surface, and/or provide boundary layer breakup.Type: ApplicationFiled: December 19, 2000Publication date: June 20, 2002Inventors: Christian Lee Vandervort, Todd Garrett Wetzel, Emil Donald Jarczynski, Samir Salamah, Wayne Nigel Owen Turnbull
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Patent number: 6392326Abstract: A gas cooled dynamoelectric machine is provided that includes a rotor having a body portion, axially extending coils, endwindings, and a plurality of spaceblocks disposed between the endwindings, so that a plurality of cavities are defined between mutually adjacent endwindings and spaceblocks. To increase endwinding cooling, at least one of the spaceblocks has a passage extending between first and second adjacent cavities to provide for cooling flow communication between the first and second cavities through the spaceblock. A flow deflector is preferably provided adjacent a radially inner end of one, the other, or both of the cavity facing surfaces of the spaceblock for directing flow into or out of the first and second cavities, respectively.Type: GrantFiled: December 22, 2000Date of Patent: May 21, 2002Assignee: General Electric CompanyInventors: Wayne Nigel Owen Turnbull, Todd Garrett Wetzel, Christian Lee Vandervort, Samir Armando Salamah, Emil Donald Jarczynski