Patents by Inventor Robert Jacek Zreda
Robert Jacek Zreda 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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Publication number: 20230016105Abstract: Various embodiments include a heat transfer device, a turbomachine casing and a related storage medium. In some cases, the device includes: a body having an outer surface and an inner cavity within the outer surface; at least one aperture extending through the body, the at least one aperture positioned to direct fluid from the inner cavity through the body to the outer surface; a first lip proximate a first end of the body, and a second lip proximate a second end of the body, the first lip and the second lip each extending radially outward from the outer surface relative to a direction of flow of the fluid through the inner cavity; and a plug coupled with the body, the plug for obstructing an end of the inner cavity, the plug positioned to redirect flow of the fluid from a first direction to a second, distinct direction.Type: ApplicationFiled: September 21, 2022Publication date: January 19, 2023Inventors: Robert Jamiolkowski, Karol Filip Leszczynski, Wojciech Grzeszczak, James William Vehr, Robert Jacek Zreda
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Patent number: 10704423Abstract: A diffuser for a turbine engine includes a first wall that extends circumferentially about a centerline axis of the turbine engine. The diffuser also includes a second wall that extends circumferentially about the centerline axis. At least a portion of the second wall is positioned radially outwardly from at least a portion of the first wall. A flow path is defined by the first wall and the second wall. The flow path extends from an inlet configured to receive an axial flow of a fluid, to a circumferentially extending outlet configured to emit the fluid in a substantially radial direction. The outlet extends asymmetrically about the centerline axis.Type: GrantFiled: August 12, 2015Date of Patent: July 7, 2020Assignee: General Electric CompanyInventors: Deepesh D. Nanda, Robert Jacek Zreda, Daniel Tomasz Ozga
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Patent number: 10287920Abstract: A system includes a diffuser section comprising an outer barrel, an outer aft plate, an inner barrel, an inner aft plate, and a plurality of poles, where the outer aft plate is disposed at a downstream end of the outer barrel, the inner aft plate is disposed at a downstream end of the inner barrel, the outer barrel and the inner barrel are disposed about a turbine axis, the diffuser section receives an exhaust gas from a gas turbine, the plurality of poles is circumferentially spaced about the turbine axis, and each pole of the plurality of poles couples a downstream end of the outer aft plate to a downstream end of the inner aft plate.Type: GrantFiled: November 24, 2015Date of Patent: May 14, 2019Assignee: General Electric CompanyInventors: Robert Jamiolkowski, Robert Jacek Zreda, Eric Yves Bracquemart, Daniel Tomasz Ożga
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Patent number: 10041377Abstract: A system includes a diffuser configured to receive exhaust gas from a turbine. The diffuser includes an outer barrel, an inner barrel, a seal interface, an outer aft plate, an inner aft plate, and poles. An upstream end of the outer barrel includes an upstream lip interfacing with a downstream lip of an outer wall of the turbine outlet, forming a lap joint. The outer barrel includes a plurality of axial segments disposed between the upstream end of the outer barrel and the outer aft plate, and the axial segments. The inner barrel includes a plurality of axial segments disposed between an upstream end of the inner barrel and the seal interface. The seal interface includes a groove configured to receive the inner aft plate. The poles are spaced about the turbine axis and couple an end of the outer aft plate to an end of the inner aft plate.Type: GrantFiled: November 24, 2015Date of Patent: August 7, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Deepesh Dinesh Nanda, Robert Jamiołkowski, Robert Jacek Zreda, Eric Yves Bracquemart, Daniel Tomasz Ożga
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Patent number: 10041365Abstract: A system includes a circumferential lap joint between a downstream end of an outer wall of a turbine outlet and an upstream end of an outer barrel of a diffuser section, where the circumferential lap joint facilitates axial movement of the outer barrel relative to the outer wall, an upstream lip of the outer barrel is disposed radially within a downstream lip of the outer wall, and both the turbine outlet and the diffuser section are configured to receive an exhaust gas.Type: GrantFiled: November 24, 2015Date of Patent: August 7, 2018Assignee: General Electric CompanyInventors: Robert Jamiolkowski, Robert Jacek Zreda, Daniel Tomasz Ożga
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Patent number: 10036283Abstract: A method includes inserting axially a radially interior surface of an aft plate assembly into a circumferential groove of an inner barrel of a diffuser section of a gas turbine, where the aft plate assembly is inserted into a first circumferential orientation relative to the circumferential groove, and the circumferential groove is disposed on a radially exterior surface of the inner barrel. The method includes rotating the aft plate assembly circumferentially within the circumferential groove from the first circumferential orientation to a second circumferential orientation, where the inner barrel is configured to axially retain the aft plate assembly when the aft plate assembly is disposed in the second circumferential orientation.Type: GrantFiled: May 11, 2016Date of Patent: July 31, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Deepesh Dinesh Nanda, Robert Jamiolkowski, Robert Jacek Zreda, Eric Yves Bracquemart, Daniel Tomasz Ozga
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Patent number: 10036267Abstract: A system includes a diffuser section comprising an outer barrel, an inner barrel, a seal interface, and an aft plate, where the outer barrel and the inner barrel are disposed about a turbine axis, and the diffuser section is configured to receive an exhaust gas from a gas turbine. The seal interface is disposed at a downstream end of the inner barrel between the inner barrel and the aft plate. The seal interface includes a first circumferential groove configured to receive the aft plate, where the first circumferential groove opens in a first direction away from the turbine axis.Type: GrantFiled: November 24, 2015Date of Patent: July 31, 2018Assignee: General Electric CompanyInventors: Robert Jamiolkowski, Robert Jacek Zreda, Daniel Tomasz Ożga
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Publication number: 20180202319Abstract: A diffuser for a turbine engine includes a first wall that extends circumferentially about a centerline axis of the turbine engine. The diffuser also includes a second wall that extends circumferentially about the centerline axis. At least a portion of the second wall is positioned radially outwardly from at least a portion of the first wall. A flow path is defined by the first wall and the second wall. The flow path extends from an inlet configured to receive an axial flow of a fluid, to a circumferentially extending outlet configured to emit the fluid in a substantially radial direction. The outlet extends asymmetrically about the centerline axis.Type: ApplicationFiled: August 12, 2015Publication date: July 19, 2018Inventors: Deepesh D. NANDA, Robert Jacek ZREDA, Daniel Tomasz OZGA
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Publication number: 20170350597Abstract: Various embodiments include a heat transfer device, a turbomachine casing and a related storage medium. In some cases, the device includes: a body having an outer surface and an inner cavity within the outer surface; at least one aperture extending through the body, the at least one aperture positioned to direct fluid from the inner cavity through the body to the outer surface; a first lip proximate a first end of the body, and a second lip proximate a second end of the body, the first lip and the second lip each extending radially outward from the outer surface relative to a direction of flow of the fluid through the inner cavity; and a plug coupled with the body, the plug for obstructing an end of the inner cavity, the plug positioned to redirect flow of the fluid from a first direction to a second, distinct direction.Type: ApplicationFiled: December 5, 2016Publication date: December 7, 2017Inventors: Robert Jamiolkowski, Karol Filip Leszczynski, Wojciech Grzeszczak, James William Vehr, Robert Jacek Zreda
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Publication number: 20170145861Abstract: A system includes a diffuser section comprising an outer barrel, an outer aft plate, an inner barrel, an inner aft plate, and a plurality of poles, where the outer aft plate is disposed at a downstream end of the outer barrel, the inner aft plate is disposed at a downstream end of the inner barrel, the outer barrel and the inner barrel are disposed about a turbine axis, the diffuser section receives an exhaust gas from a gas turbine, the plurality of poles is circumferentially spaced about the turbine axis, and each pole of the plurality of poles couples a downstream end of the outer aft plate to a downstream end of the inner aft plate.Type: ApplicationFiled: November 24, 2015Publication date: May 25, 2017Inventors: Robert Jamiolkowski, Robert Jacek Zreda, Eric Yves Bracquemart, Daniel Tomasz Ozga
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Publication number: 20170145864Abstract: A method includes inserting axially a radially interior surface of an aft plate assembly into a circumferential groove of an inner barrel of a diffuser section of a gas turbine, where the aft plate assembly is inserted into a first circumferential orientation relative to the circumferential groove, and the circumferential groove is disposed on a radially exterior surface of the inner barrel. The method includes rotating the aft plate assembly circumferentially within the circumferential groove from the first circumferential orientation to a second circumferential orientation, where the inner barrel is configured to axially retain the aft plate assembly when the aft plate assembly is disposed in the second circumferential orientation.Type: ApplicationFiled: May 11, 2016Publication date: May 25, 2017Inventors: Deepesh Dinesh Nanda, Robert Jamiolkowski, Robert Jacek Zreda, Eric Yves Bracquemart, Daniel Tomasz Ozga
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Publication number: 20170145844Abstract: A system includes a diffuser section comprising an outer barrel, an inner barrel, a seal interface, and an aft plate, where the outer barrel and the inner barrel are disposed about a turbine axis, and the diffuser section is configured to receive an exhaust gas from a gas turbine. The seal interface is disposed at a downstream end of the inner barrel between the inner barrel and the aft plate. The seal interface includes a first circumferential groove configured to receive the aft plate, where the first circumferential groove opens in a first direction away from the turbine axis.Type: ApplicationFiled: November 24, 2015Publication date: May 25, 2017Inventors: Robert Jamiolkowski, Robert Jacek Zreda, Daniel Tomasz Ozga
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Publication number: 20170145843Abstract: A system includes a circumferential lap joint between a downstream end of an outer wall of a turbine outlet and an upstream end of an outer barrel of a diffuser section, where the circumferential lap joint facilitates axial movement of the outer barrel relative to the outer wall, an upstream lip of the outer barrel is disposed radially within a downstream lip of the outer wall, and both the turbine outlet and the diffuser section are configured to receive an exhaust gas.Type: ApplicationFiled: November 24, 2015Publication date: May 25, 2017Inventors: Robert Jamiolkowski, Robert Jacek Zreda, Daniel Tomasz Ozga
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Publication number: 20170145863Abstract: A system includes a diffuser configured to receive exhaust gas from a turbine. The diffuser includes an outer barrel, an inner barrel, a seal interface, an outer aft plate, an inner aft plate, and poles. An upstream end of the outer barrel includes an upstream lip interfacing with a downstream lip of an outer wall of the turbine outlet, forming a lap joint. The outer barrel includes a plurality of axial segments disposed between the upstream end of the outer barrel and the outer aft plate, and the axial segments. The inner barrel includes a plurality of axial segments disposed between an upstream end of the inner barrel and the seal interface. The seal interface includes a groove configured to receive the inner aft plate. The poles are spaced about the turbine axis and couple an end of the outer aft plate to an end of the inner aft plate.Type: ApplicationFiled: November 24, 2015Publication date: May 25, 2017Inventors: Deepesh Dinesh Nanda, Robert Jamiolkowski, Robert Jacek Zreda, Eric Yves Bracquemart, Daniel Tomasz Ozga
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Publication number: 20160109027Abstract: Disclosed are a valve seat apparatus and valve disc apparatus. The valve seat can include a substantially hollow seat interior. The substantially hollow seat interior can also define a substantially frusto-conical seat cavity with a radial axis. The substantially hollow seat interior can have first and second wall sections, with the second wall section being aligned at a smaller angle relative to the radial axis than the first wall section. The valve disc can include a substantially frusto-conical valve body with a radial axis. The valve body can include first and second disc surfaces each aligned at an angle relative to the radial axis. The second disc surface can have an angle relative to the radial axis that is smaller than that of the first disc surface.Type: ApplicationFiled: June 19, 2013Publication date: April 21, 2016Inventors: Axelle Le Jossec, Krzysztof Andrzej Woszczak, Robert Jacek Zreda
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Patent number: 8522820Abstract: A valve system is provided including a valve seat, an outlet passage and a stop valve. The valve seat has a crenulated portion. The crenulated portion has an annular recess and a plurality of teeth that are separated by a plurality of circumferential gaps. At least one of the teeth has an angled surface that borders between one of the plurality of circumferential gaps and the respective one of the plurality of teeth. The angled surface is oriented at an angle with respect to an axis that extends radially outwardly from a central axis of the valve seat. The outlet passage is located downstream of the valve seat for directing flow out of the valve assembly. The stop valve is located within the annular recess of the crenulated portion.Type: GrantFiled: September 16, 2011Date of Patent: September 3, 2013Assignee: General Electric CompanyInventors: Tomasz Waldemar Biwanski, Wiktor Jan Wojciechowski, Robert Jacek Zreda
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Publication number: 20130015387Abstract: A valve system is provided including a valve seat, an outlet passage and a stop valve. The valve seat has a crenulated portion. The crenulated portion has an annular recess and a plurality of teeth that are separated by a plurality of circumferential gaps. At least one of the teeth has an angled surface that borders between one of the plurality of circumferential gaps and the respective one of the plurality of teeth. The angled surface is oriented at an angle with respect to an axis that extends radially outwardly from a central axis of the valve seat. The outlet passage is located downstream of the valve seat for directing flow out of the valve assembly. The stop valve is located within the annular recess of the crenulated portion.Type: ApplicationFiled: September 16, 2011Publication date: January 17, 2013Applicant: General Electric CompanyInventors: Tomasz Waldemar Biwanski, Wiktor Jan Wojciechowski, Robert Jacek Zreda