Patents by Inventor Martin Balliel
Martin Balliel 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: 10087765Abstract: A rotating blade for a gas turbine includes an airfoil extending in a longitudinal direction and having a leading edge and a trailing edge, whereby the airfoil is bordered at its outer end by a tip shroud, whereby the airfoil includes two or more internal passages, which run in longitudinal direction and are separated by solid webs, and whereby a plurality of shroud fins is arranged on top of the tip shroud to improve gas sealing against a corresponding stator heat shield. The stability and life time of the blade can be enhanced by selecting a position of each of the shroud fins to be exclusively above one of the webs and/or a leading edge wall.Type: GrantFiled: December 16, 2015Date of Patent: October 2, 2018Assignee: ANSALDO ENERGIA SWITZERLAND AGInventors: Martin Balliel, Stefan Andreas Retzko, Frank Gersbach, Igor Tsypkaykin, Julien Nussbaum, Marco Lamminger, Cornelia Santner
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Patent number: 10036284Abstract: A rotating gas turbine blade is disclosed which includes an airfoil with a suction side and a pressure side, the airfoil extending in a radial direction from a blade root to a blade tip. The blade tip includes a tip shroud, the airfoil having internal cooling passages for a cooling medium, which extend through the tip shroud. Outlet ports are provided above a selected internal airfoil cooling passage for the cooling medium to be ejected above the tip shroud in a direction of the blade's pressure side. Dust accumulation is avoided at the tip end of the selected internal cooling passage.Type: GrantFiled: December 9, 2015Date of Patent: July 31, 2018Assignee: ANSALDO ENERGIA SWITZERLAND AGInventors: Martin Balliel, Frank Gersbach, Stefan Andreas Retzko, Marco Lamminger
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Publication number: 20170167008Abstract: A solution heat treatment method is disclosed for manufacturing metallic components of a turbo machine, which components provide a hot gas flow channel when assembled in the turbo machine after manufacturing, wherein the components are subjected to a time-temperature-cycle in a furnace. The method includes positioning the components in the furnace in a same principle as the component assembly in the turbo machine, but leaving flow areas and gaps between neighbouring components; then starting the time-temperature-cycle; and applying an inert gas during the solution heat treatment process so that the inert gas flows through flow areas and gaps for achieving a uniform temperature.Type: ApplicationFiled: December 8, 2016Publication date: June 15, 2017Applicant: ANSALDO ENERGIA SWITZERLAND AGInventors: Martin SCHNEIDER, Martin BALLIEL
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Publication number: 20160169006Abstract: A rotating blade for a gas turbine includes an airfoil extending in a longitudinal direction and having a leading edge and a trailing edge, whereby the airfoil is bordered at its outer end by a tip shroud, whereby the airfoil includes two or more internal passages, which run in longitudinal direction and are separated by solid webs, and whereby a plurality of shroud fins is arranged on top of the tip shroud to improve gas sealing against a corresponding stator heat shield. The stability and life time of the blade can be enhanced by selecting a position of each of the shroud fins to be exclusively above one of the webs and/or a leading edge wall.Type: ApplicationFiled: December 16, 2015Publication date: June 16, 2016Applicant: General Electric Technology GmbHInventors: Martin BALLIEL, Stefan Andreas RETZKO, Frank GERSBACH, Igor TSYPKAYKIN, Julien NUSSBAUM, Marco LAMMINGER, Cornelia SANTNER
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Publication number: 20160169052Abstract: A rotating gas turbine blade is disclosed which includes an airfoil with a suction side and a pressure side, the airfoil extending in a radial direction from a blade root to a blade tip. The blade tip includes a tip shroud, the airfoil having internal cooling passages for a cooling medium, which extend through the tip shroud. Outlet ports are provided above a selected internal airfoil cooling passage for the cooling medium to be ejected above the tip shroud in a direction of the blade's pressure side. Dust accumulation is avoided at the tip end of the selected internal cooling passage.Type: ApplicationFiled: December 9, 2015Publication date: June 16, 2016Applicant: General Electric Technology GmbHInventors: Martin BALLIEL, Frank GERSBACH, Stefan Andreas RETZKO, Marco LAMMINGER
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Patent number: 8721284Abstract: A hollow-cast casting is provided, which includes at least one core opening that is caused by the production technique and which has a closure device that closes the core opening. The closure device can be inserted into the core opening axially in relation to the core opening and provides at least one surface region which, in axial projection in relation to the core opening, can be made to abut a surface region of the casting that is facing toward the casting. The surface region lies radially outside a cross-sectional area predetermined by the core opening.Type: GrantFiled: September 9, 2010Date of Patent: May 13, 2014Assignee: Alstom Technology Ltd.Inventors: Martin Balliel, Christoph Didion, Thomas Duda, Marcel Koenig
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Publication number: 20110056648Abstract: A hollow-cast casting is provided, which includes at least one core opening that is caused by the production technique and which has a closure device that closes the core opening. The closure device can be inserted into the core opening axially in relation to the core opening and provides at least one surface region which, in axial projection in relation to the core opening, can be made to abut a surface region of the casting that is facing toward the casting. The surface region lies radially outside a cross-sectional area predetermined by the core opening.Type: ApplicationFiled: September 9, 2010Publication date: March 10, 2011Applicant: ALSTOM TECHNOLOGY LTDInventors: Martin BALLIEL, Christoph DIDION, Thomas DUDA, Marcel KOENIG
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Patent number: 7017646Abstract: A method of casting a directionally solidified (DS) or single crystal (SX) article with a casting furnace having a heating chamber (4), a cooling chamber (5), a separating baffle (3) between the both chambers includes a first step in which the shell mould (12) is filled with liquid metal (15), and the liquid metal (15) is directionally solidified by withdrawing the shell mould (12) from the heating to the cooling chamber (4, 5). An inert gas impinges from nozzles (8) arranged below the baffle (3) on the shell mould (12) and in steep transitions in outer surface area of the shell mould (12) the flow of the inert gas (9) is reduced or even stopped and when a protruding geometrical feature has passed the impingement area of the gas jets, the gas flow (9) is restored to a value adjusted to the geometry of the cast part presently passing the impingement area.Type: GrantFiled: November 8, 2004Date of Patent: March 28, 2006Assignee: Alstom Technology Ltd.Inventors: Martin Balliel, Dietrich Eckardt, Maxim Konter, Andreas Weiland
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Publication number: 20050103462Abstract: A method of casting a directionally solidified (DS) or single crystal (SX) article with a casting furnace having a heating chamber (4), a cooling chamber (5), a separating baffle (3) between the both chambers includes a first step in which the shell mould (12) is filled with liquid metal (15), and the liquid metal (15) is directionally solidified by withdrawing the shell mould (12) from the heating to the cooling chamber (4, 5). An inert gas impinges from nozzles (8) arranged below the baffle (3) on the shell mould (12) and in steep transitions in outer surface area of the shell mould (12) the flow of the inert gas (9) is reduced or even stopped and when a protruding geometrical feature has passed the impingement area of the gas jets, the gas flow (9) is restored to a value adjusted to the geometry of the cast part presently passing the impingement area.Type: ApplicationFiled: November 8, 2004Publication date: May 19, 2005Inventors: Martin Balliel, Dietrich Eckardt, Maxim Konter, Andreas Weiland
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Patent number: 6523599Abstract: A casting furnace (1) for producing castings which are directionally solidified in monocrystalline and polycrystalline form. The casting furnace (1) includes an upper heating chamber (2), which is equipped with a heating chamber wall (4) which contains at least one heater element, a lower cooling chamber (3), and contains a casting mold (11) which is moved by means of a conveyor device. Inside the heating chamber (4) there is an internal heater (6) which heats the inner surfaces of the casting pieces (11a), which are shielded from the casting mold (11), and thus prevents the solidification front from sloping inside the casting pieces (11a).Type: GrantFiled: April 24, 2000Date of Patent: February 25, 2003Assignee: Alstom (Switzerland) LtdInventor: Martin Balliel