Patents by Inventor Mehmet Demiroglu
Mehmet Demiroglu 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: 7752726Abstract: A fixture assembly and inspection method by which the internal diameter and/or concentricity of a segmented annular seal can be readily inspected and optionally measured prior to final installation. The fixture assembly has at least two fixture segments supported on a base, by which an annular fixture housing is defined having an outer rim and a groove with a cross-sectional shape corresponding to a cross-sectional shape of the annular seal. The fixture assembly further includes a device or apparatus for assessing at least one dimensional characteristic of the annular seal when installed in the groove of the fixture housing and as the assessing device/apparatus travels along the interior circumference of the fixture housing.Type: GrantFiled: November 30, 2005Date of Patent: July 13, 2010Assignee: General Electric CompanyInventors: Anthony Constantine Thermos, Ronald Ralph Cairo, Mehmet Demiroglu, Nitin Bhate
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Publication number: 20090085305Abstract: An apparatus for sealing gas path leakage within a turbomachine is provided. The apparatus may include at least one seal system, which may include at least one sealing shim, at least one spring; and at least one shim protection material. The seal system may be inserted between a first and a second structure of the turbomachine. The seal system may adjust for misalignments between the first and the second structures of the turbomachine.Type: ApplicationFiled: September 28, 2007Publication date: April 2, 2009Inventors: Mehmet Demiroglu, Christopher E. Wolfe, Patrick B. Melton, Edip Sevincer
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Publication number: 20070119042Abstract: A fixture assembly and inspection method by which the internal diameter and/or concentricity of a segmented annular seal can be readily inspected and optionally measured prior to final installation. The fixture assembly has at least two fixture segments supported on a base, by which an annular fixture housing is defined having an outer rim and a groove with a cross-sectional shape corresponding to a cross-sectional shape of the annular seal. The fixture assembly further includes a device or apparatus for assessing at least one dimensional characteristic of the annular seal when installed in the groove of the fixture housing and as the assessing device/apparatus travels along the interior circumference of the fixture housing.Type: ApplicationFiled: November 30, 2005Publication date: May 31, 2007Applicant: GENERAL ELECTRIC COMPANYInventors: Anthony Thermos, Ronald Cairo, Mehmet Demiroglu, Nitin Bhate
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Patent number: 7125223Abstract: An apparatus for providing active clearance control between blade tips and seals in a turbomachine comprising: a first stator carrier segment, with stator seals centripetally disposed on it; a second stator carrier segment located along a same circumference as the first stator carrier segment, also with stator seals centripetally disposed on it; a shell that adjustably houses the first stator carrier segment and the second carrier segment; at least one displacement apparatus in operable communication with at least one stator carrier segment and configured to position the at least one stator carrier segment to provide active clearance control to the stator seals disposed on the at least one stator carrier segment.Type: GrantFiled: September 30, 2003Date of Patent: October 24, 2006Assignee: General Electric CompanyInventors: Norman Arnold Turnquist, Hamid Reza Sarshar, Biao Fang, Mehmet Demiroglu, Bernard Arthur Couture, Clement Gazzillo, Edip Sevincer
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Patent number: 7066470Abstract: A seal assembly includes an annular hanger having a supporting ledge. An arcuate seal segment includes an outer rail mounted on the ledge and supporting an inner seal. An arcuate carrier is mounted between the hanger and the rail, and includes a piston mounted in a bore. The bore is selectively pressurized to deploy the piston between the hanger and rail for temporarily retracting the seal segment from an adjacent rotor component.Type: GrantFiled: July 31, 2003Date of Patent: June 27, 2006Assignee: General Electric CompanyInventors: Norman Arnold Turnquist, Biao Fang, Osman Saim Dinc, Hamid Reza Sarshar, Mehmet Demiroglu, Mark Edward Burnett, Frederick George Baily, Mahmut Faruk Aksit, Ahmad Safi, Richard Robert Larsen
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Publication number: 20050069406Abstract: An apparatus for providing active clearance control between blade tips and seals in a turbomachine comprising: a first stator carrier segment, with stator seals centripetally disposed on it; a second stator carrier segment located along a same circumference as the first stator carrier segment, also with stator seals centripetally disposed on it; a shell that adjustably houses the first stator carrier segment and the second carrier segment; at least one displacement apparatus in operable communication with at least one stator carrier segment and configured to position the at least one stator carrier segment to provide active clearance control to the stator seals disposed on the at least one stator carrier segment.Type: ApplicationFiled: September 30, 2003Publication date: March 31, 2005Inventors: Norman Turnquist, Hamid Sarshar, Biao Fang, Mehmet Demiroglu, Bernard Couture, Clement Gazzillo, Edip Sevincer
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Patent number: 6840519Abstract: One embodiment of the present invention comprises an actuating mechanism for a turbine comprising a compliant member (meaning at least one compliant member) comprising a series of serpentine folds forming a plurality of fold sections and a central cavity (meaning at least one central cavity) interposed between the adjacent fold sections wherein the compliant member is movable between a first retracted position and a second extended position upon introduction of a pressurized medium into the central cavity and dispersion of the pressurized medium within the serpentine folds.Type: GrantFiled: October 30, 2001Date of Patent: January 11, 2005Assignee: General Electric CompanyInventors: Osman Saim Dinc, Mehmet Demiroglu, Hamid Reza Sarshar, Paul Gladen, Keith Hochhalter
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Publication number: 20040256807Abstract: A bearing assembly for supporting a rotating component of a rotary machine includes a bearing housing and a metallic clearance seal attached to the bearing housing. The metallic clearance seal having at least one tooth is configured to extend radially outward from the bearing housing spaced apart from the rotating component to define an envelope having a pre-determined cross-sectional shape. A non-metallic brush seal assembly is fixedly attached to the metallic clearance seal having a second pre-determined cross-sectional shape. The non-metallic brush seal assembly is adapted to the metallic clearance seal to extend through the envelope and terminate in substantially intimate contact with the rotating component. The non-metallic brush seal assembly comprises a plurality of fibers to substantially arrest leakage of a lubricant from the bearing housing to the envelope.Type: ApplicationFiled: June 23, 2003Publication date: December 23, 2004Inventors: Nitin Bhate, Mahmut Faruk Aksit, Mehmet Demiroglu, Anthony Constantine Thermos
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Patent number: 6786487Abstract: An actuated seal assembly for controlling flow in a fluid path in turbomachinery comprising a seal and a seal carrier coupled to the seal is provided. A displacement apparatus is coupled to the seal carrier for positioning the seal so as to control the flow in the fluid path. In addition, a drive system is provided for powering the displacement apparatus.Type: GrantFiled: December 5, 2001Date of Patent: September 7, 2004Assignee: General Electric CompanyInventors: Osman Saim Dinc, Norman Arnold Turnquist, Mehmet Demiroglu, Hamid Reza Sarshar, Ahmad Safi, Mahmut Faruk Aksit, Roger Neal Johnson, Anthony Holmes Furman, Imdad Imam, Gerald Burt Kliman, James Hopkins, Richard Robert Larsen, David Michael Prowse, Steven Wayne Russell
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Publication number: 20040100035Abstract: A seal assembly includes an annular hanger having a supporting ledge. An arcuate seal segment includes an outer rail mounted on the ledge and supporting an inner seal. An arcuate carrier is mounted between the hanger and the rail, and includes a piston mounted in a bore. The bore is selectively pressurized to deploy the piston between the hanger and rail for temporarily retracting the seal segment from an adjacent rotor component.Type: ApplicationFiled: July 31, 2003Publication date: May 27, 2004Inventors: Norman Arnold Turnquist, Biao Fang, Osman Saim Dinc, Hamid Reza Sarshar, Mehmet Demiroglu, Mark Edward Burnett, Frederick George Baily, Mahmut Faruk Aksit, Ahmad Safi, Richard Robert Larsen
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Patent number: 6655696Abstract: A seal carrier is provided for a rotary machine wherein the seal carrier comprises a packing ring coupled to a seal and wherein the packing ring comprises a channel disposed therein. In addition, a displacement apparatus is disposed in the channel for radially positioning the seal to control a flow of a fluid in a fluid path.Type: GrantFiled: June 28, 2002Date of Patent: December 2, 2003Assignee: General Electric CompanyInventors: Biao Fang, Norman Arnold Turnquist, Hamid Reza Sarshar, Mahmut Faruk Aksit, Mark Edward Burnett, Frederick George Baily, Mehmet Demiroglu
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Publication number: 20030102630Abstract: The present invention provides an actuated seal assembly for controlling flow in a fluid path in turbomachinery comprising a seal and a seal carrier coupled to the seal. A displacement apparatus is coupled to the seal carrier for positioning the seal so as to control the flow in the fluid path. In addition, a drive system is provided for powering the displacement apparatus.Type: ApplicationFiled: December 5, 2001Publication date: June 5, 2003Applicant: General Electric CompanyInventors: Osman Saim Dinc, Norman Arnold Turnquist, Mehmet Demiroglu, Hamid Reza Sarshar, Ahmad Safi, Mahmut Faruk Aksit, Roger Neal Johnson, Anthony Holmes Furman, Imdad Imam, Gerald Burt Kliman, James Hopkins, Richard Robert Larsen, David Michael Prowse, Steven Wayne Russell
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Publication number: 20030080510Abstract: One embodiment of the present invention comprises an actuating mechanism for a turbine comprising a compliant member (meaning at least one compliant member) comprising a series of serpentine folds forming a plurality of fold sections and a central cavity (meaning at least one central cavity) interposed between the adjacent fold sections wherein the compliant member is movable between a first retracted position and a second extended position upon introduction of a pressurized medium into the central cavity and dispersion of the pressurized medium within the serpentine folds.Type: ApplicationFiled: October 30, 2001Publication date: May 1, 2003Inventors: Osman Saim Dinc, Mehmet Demiroglu, Hamid Reza Sarshar, Paul Gladen, Keith Hochhalter
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Patent number: 6505834Abstract: An embodiment providing a seal assembly for turbomachinery for controlling flow of a fluid medium in a fluid path comprises a casing having an internal pressure load path and a seal carrier chamber. A movable seal carrier is disposed within the seal carrier chamber and interposed between the pressure load path and an external flow path. In addition, a pressure selecting apparatus is coupled to the pressure load path to control flow therethrough. Moreover, the position of the movable seal carrier moves in response to a pressure differential determined by the pressure selecting apparatus between the pressure load path and the external flow path.Type: GrantFiled: November 2, 2001Date of Patent: January 14, 2003Assignee: General Electric CompanyInventors: Osman Saim Dinc, Mehmet Demiroglu
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Patent number: 6502823Abstract: A seal assembly is provided for a rotary machine wherein the rotary machine comprises a rotor and a casing. The rotor comprises a generally longitudinally-extending axis wherein the casing is generally coaxially aligned with the axis. The casing circumferentially surrounds and is radially spaced apart from the rotor wherein the casing comprises an inner circumferential channel generally coaxially aligned with the rotor. The seal assembly comprises a plurality of seal segments disposable in a circumferential array in the channel so as to be movable between radially inward and radially outward positions. In addition, the seal assembly comprises a plurality of displacement apparatuses comprising at least one fluid inlet and configured for urging apart the seal segments upon introduction of a fluid medium in the fluid inlet. Each of the seal segments comprises an end having at least one of the displacement apparatuses circumferentially disposed thereon.Type: GrantFiled: December 7, 2001Date of Patent: January 7, 2003Assignee: General Electric CompanyInventors: Norman Arnold Turnquist, Mehmet Demiroglu
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Patent number: 6378371Abstract: A brush seal segment is mounted within a pressure vessel and against an arcuate surface of an element to provide a seal between regions on opposite sides of the seal at different pressures. By vibrating the vessel through a range of frequencies, natural frequencies of the brush seal under pressure loading can be ascertained. Additionally, by adjusting interference between the arcuate surface and the bristle tips, natural frequencies of the brush seal under various interference loadings can likewise be ascertained. The pressure vessel has mounts for attaching the vessel to a shaker table to facilitate vibrating the vessel through the range of frequencies.Type: GrantFiled: September 29, 2000Date of Patent: April 30, 2002Assignee: General Electric CompanyInventors: Mahmut Faruk Aksit, Mehmet Demiroglu, Hamid Reza Sarshar, Osman Saim Dinc
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Patent number: 6116608Abstract: A brush seal is mounted between rotary and stationary components in a flow stream having solid particles. A gap is formed through the brush seal bristles and a deflector plate is disposed to catch and deflect solid particles on the upstream side of the brush seal to direct the particles through the gap to the downstream side of the brush seal. In this manner, the solid particles of the flow stream do not erode or otherwise deteriorate the brush seal bristles or ancillary parts of the brush seal. The deflector plates may be directed axially upstream, at an angle to a plane passing through the brush seal or may comprise an arcuate configuration directed upstream.Type: GrantFiled: November 12, 1998Date of Patent: September 12, 2000Assignee: General Electric Co.Inventors: Christopher Edward Wolfe, Martin Francis O'Connor, Mehmet Demiroglu, Lawrence Edward Rentz, Frederick George Baily
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Patent number: 5915697Abstract: A seal assembly having a flexible cloth seal which includes a shim assemblage surrounded by a cloth assemblage. A first tubular end portion, such as a gas turbine combustor, includes a longitudinal axis and has smooth and spaced-apart first and second surface portions defining a notch therebetween which is wider at its top than at its bottom and which extends outward from the axis. The second surface portion is outside curved, and a first edge of the cloth seal is positioned in the bottom of the notch. A second tubular end portion, such as a first stage nozzle, is located near, spaced apart from, and coaxially aligned with, the first tubular end portion. The second tubular end portion has a smooth third surface portion which surrounds at least a portion of the first tubular end portion and which is contacted by the cloth seal.Type: GrantFiled: September 22, 1997Date of Patent: June 29, 1999Assignee: General Electric CompanyInventors: Bharat Sampathkumar Bagepalli, Joseph Charles Taura, Mahmut Faruk Aksit, Mehmet Demiroglu, Daniel Ross Predmore