Patents by Inventor Christoph Cernay
Christoph Cernay 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: 10436052Abstract: A leaf seal for sealing off a shaft rotating around an axis, particularly in a gas turbine, is disclosed. The leaf seal includes a plurality of leaves arranged spaced apart from one another, where the leaves are produced integrally with a basic element supporting the leaves by a generative production process. A process for producing a leaf seal for sealing off a shaft rotating around an axis is also disclosed.Type: GrantFiled: July 30, 2015Date of Patent: October 8, 2019Assignee: MTU Aero Engines AGInventors: Julian Weber, Christoph Cernay, Thomas Hess
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Patent number: 10201845Abstract: The invention relates to a device and a corresponding method for manufacturing brush seals with obliquely positioned bristles. The method comprises the following steps: As the first step, a metal filament or wire (50) comprising a material for bristles is wound over two wire cores (42, 46) disposed at a distance from and running parallel to one another, to form a tightly packed metal filament or wire package (48). As the next step, the metal filament or wire package (48) is fastened to at least one wire core (42, 46). Then the region around at least one of the two wire cores (42, 46) is locally heated. Subsequently, at least one of the two wire cores (42, 46) is displaced.Type: GrantFiled: April 18, 2016Date of Patent: February 12, 2019Assignee: MTU Aero Engines AGInventors: Alexander Gindorf, Roland Huttner, Martin Fessler-Knobel, Julian Weber, Christoph Cernay
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Patent number: 10100655Abstract: The invention relates to a brush seal, in particular for the sealing of gaps occurring in turbomachines, including a plurality of individual fibers, individual wires or bundles of individual fibers or wires, wherein, in each case, at least two individual fibers or wires, and/or at least two fiber bundles or wire bundles are braided or twisted into a fiber or wire package. In addition, the invention relates to a method for producing a brush seal.Type: GrantFiled: September 18, 2014Date of Patent: October 16, 2018Assignee: MTU AERO ENGINES AGInventors: Christoph Cernay, Stephan Prostler, Wolfgang Schmidmayr, Julian Weber, Benjamin Grobkurth, Stefan Beichl
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Patent number: 9920838Abstract: A brush seal for a gas turbine, in particular an aircraft engine, is disclosed. The brush seal includes a support ring which has a support plate and a support structure, where the support structure is arranged downstream with respect to the support plate. The brush seal also includes bristles which are arranged upstream with respect to the support ring, where ends of the bristles protrude radially inward beyond the support plate. The support structure yields when a scraping force acting radially outward occurs on a first lateral surface of the support structure, where the first lateral surface is directed radially inward, and the support structure does not yield when an axial operating force occurs on a second lateral surface of the support structure.Type: GrantFiled: July 2, 2015Date of Patent: March 20, 2018Assignee: MTU Aero Engines AGInventors: Stephan Klaen, Julian Weber, Frank Stiehler, Christoph Cernay, Thomas Hess
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Publication number: 20160327160Abstract: The invention relates to a device and a corresponding method for manufacturing brush seals with obliquely positioned bristles. The method comprises the following steps: As the first step, a metal filament or wire (50) comprising a material for bristles is wound over two wire cores (42, 46) disposed at a distance from and running parallel to one another, to form a tightly packed metal filament or wire package (48). As the next step, the metal filament or wire package (48) is fastened to at least one wire core (42, 46). Then the region around at least one of the two wire cores (42, 46) is locally heated. Subsequently, at least one of the two wire cores (42, 46) is displaced.Type: ApplicationFiled: April 18, 2016Publication date: November 10, 2016Inventors: Alexander Gindorf, Roland Huttner, Martin Fessler-Knobel, Julian Weber, Christoph Cernay
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Patent number: 9334747Abstract: The invention relates to an apparatus (10) for securing sealing elements (12, 14) in a recess (16), more particularly in an installation slot in a turbomachine, having at least one sealing support element (18) comprising at least one sealing element (12, 14). At least one fixing piece (20) is fitted between the sealing support element (18) and a clamping piece (22) associated with the sealing support element (18), and the fixing piece (20) is integrally joined to the sealing support element (18) and the clamping piece (22) by strut-like connections (24) that can be broken by the application of force. The invention also relates to a securing method and to a method for manufacturing the claimed apparatus (10).Type: GrantFiled: April 4, 2014Date of Patent: May 10, 2016Assignee: MTU AERO ENGINES AGInventors: Christoph Cernay, Wolfgang Schmidmayr, Thomas Hess, Julian Weber
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Publication number: 20160047262Abstract: The invention relates to an apparatus (10) for securing sealing elements (12, 14) in a recess (16), more particularly in an installation slot in a turbomachine, having at least one sealing support element (18) comprising at least one sealing element (12, 14). At least one fixing piece (20) is fitted between the sealing support element (18) and a clamping piece (22) associated with the sealing support element (18), and the fixing piece (20) is integrally joined to the sealing support element (18) and the clamping piece (22) by strut-like connections (24) that can be broken by the application of force. The invention also relates to a securing method and to a method for manufacturing the claimed apparatus (10).Type: ApplicationFiled: April 2, 2014Publication date: February 18, 2016Inventors: Christoph Cernay, Wolfgang Schmidmayr, Thomas Hess, Julian Weber
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Publication number: 20160032749Abstract: A leaf seal for sealing off a shaft rotating around an axis, particularly in a gas turbine, is disclosed. The leaf seal includes a plurality of leaves arranged spaced apart from one another, where the leaves are produced integrally with a basic element supporting the leaves by a generative production process. A process for producing a leaf seal for sealing off a shaft rotating around an axis is also disclosed.Type: ApplicationFiled: July 30, 2015Publication date: February 4, 2016Applicant: MTU Aero Engines AGInventors: Julian WEBER, Christoph CERNAY, Thomas HESS
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Publication number: 20160003360Abstract: A brush seal for a gas turbine, in particular an aircraft engine, is disclosed. The brush seal includes a support ring which has a support plate and a support structure, where the support structure is arranged downstream with respect to the support plate. The brush seal also includes bristles which are arranged upstream with respect to the support ring, where ends of the bristles protrude radially inward beyond the support plate. The support structure yields when a scraping force acting radially outward occurs on a first lateral surface of the support structure, where the first lateral surface is directed radially inward, and the support structure does not yield when an axial operating force occurs on a second lateral surface of the support structure.Type: ApplicationFiled: July 2, 2015Publication date: January 7, 2016Applicant: MTU Aero Engines AGInventors: Stephan KLAEN, Julian WEBER, Frank STIEHLER, Christoph CERNAY, Thomas HESS
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Publication number: 20150084285Abstract: The invention relates to a brush seal (10), in particular for the sealing of gaps occurring in turbomachines, including a plurality of individual fibers (12), individual wires or bundles (14) of individual fibers or wires, wherein, in each case, at least two individual fibers (12) or wires, and/or at least two fiber bundles (14) or wire bundles are braided or twisted into a fiber or wire package (16). In addition, the invention relates to a method for producing a brush seal (10).Type: ApplicationFiled: September 18, 2014Publication date: March 26, 2015Inventors: Christoph Cernay, Stephan Prostler, Wolfgang Schmidmayr, Julian Weber, Benjamin Grobkurth, Stefan Beichl
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Patent number: 7909334Abstract: A sealing arrangement for a non-hermetic seal between a stator and a rotor includes a brush gasket having a plurality of bristles wound around a core element and affixed to the core element with a clamping element. The brush gasket is disposed at least partially in a receiving space delimited by a support element and by a cover element. The support element, the cover element, and the brush gasket are secured using at least one fitting element in at least one recess, especially in an axial groove or bore, in the stator. In addition to being positioned by using the at least one fitting element, the components may also be affixed to the stator using an attachment element.Type: GrantFiled: July 9, 2004Date of Patent: March 22, 2011Assignee: MTU Aero Engines GmbHInventors: Stefan Beichl, Christoph Cernay, Alfons Gail, Erhan Ücgül
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Patent number: 7862047Abstract: A brush seal for sealing off components movable relative to one another with respect to a pressure difference is disclosed. The brush seal having bristles which are arranged in a bristle housing which consists of two housing halves having free ends of legs which project into the area of the ends of the bristles, which legs carry mutually facing supporting surfaces for the bristles.Type: GrantFiled: October 17, 2008Date of Patent: January 4, 2011Assignee: MTU Aero Engines GmbHInventors: Stefan Beichl, Carsten Butz, Christoph Cernay
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Publication number: 20090288422Abstract: A component arrangement is provided which includes two component elements with portions pushed one into the other, leaving a gap and arranged statically with respect to one another. The component arrangement also includes a sealing element sealing off the gap. One of the component elements has a groove which runs in the region of the gap to be sealed off and is open towards the other component element. The component that has the groove has a side face. The sealing element includes a holding element with a first side face and with a second side face and is arranged at least partially in the groove. The first side face of the holding element can be pushed against the side face of the groove by a pressure difference. The side face of the groove and/or the first side face of the holding element include/includes at least one pressure relief depression.Type: ApplicationFiled: May 26, 2009Publication date: November 26, 2009Inventors: Christoph Cernay, Stefan Tschirren
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Publication number: 20090039604Abstract: A brush seal for sealing off components movable relative to one another with respect to a pressure difference is disclosed. The brush seal having bristles which are arranged in a bristle housing which consists of two housing halves having free ends of legs which project into the area of the ends of the bristles, which legs carry mutually facing supporting surfaces for the bristles.Type: ApplicationFiled: October 17, 2008Publication date: February 12, 2009Applicant: MTU Aero Engines GmbHInventors: Stefan Beichl, Carsten Butz, Christoph Cernay
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Patent number: 7165771Abstract: A brush seal assembly is provided for sealing components which move relative to one another. One of the components includes a recess or groove for accommodating a clamping sleeve which supports bristles. A support plate which is formed separately from the component and the clamping sleeve is pressed into the recess and abuts the recess wall surfaces and the clamping sleeve to hold the same in a predetermined working position.Type: GrantFiled: December 14, 2002Date of Patent: January 23, 2007Assignee: MTU Aero Engines GmbHInventors: Stefan Beichl, Carsten Butz, Christoph Cernay, Alfons Gail, Adriano Marchini, Alexander Rauschmeier
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Publication number: 20060249910Abstract: A brush seal for sealing off components movable relative to one another with respect to a pressure difference is disclosed. The brush seal having bristles which are arranged in a bristle housing which consists of two housing halves having free ends of legs which project into the area of the ends of the bristles, which legs carry mutually facing supporting surfaces for the bristles.Type: ApplicationFiled: April 24, 2004Publication date: November 9, 2006Inventors: Stefan Beichl, Carsten Butz, Christoph Cernay
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Publication number: 20050116423Abstract: A brush seal assembly is provided for sealing components which move relative to one another. One of the components includes a recess or groove for accommodating a clamping sleeve which supports bristles. A support plate which is formed separately from the component and the clamping sleeve is pressed into the recess and abuts the recess wall surfaces and the clamping sleeve to hold the same in a predetermined working position.Type: ApplicationFiled: December 14, 2002Publication date: June 2, 2005Inventors: Stefan Beichl, Carsten Butz, Christoph Cernay, Alfons Gail, Adriano Marchini, Alexander Rauschmeier
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Publication number: 20050006968Abstract: A sealing arrangement for a non-hermetic seal between a stator and a rotor includes a brush gasket having a plurality of bristles wound around a core element and affixed to the core element with a clamping element. The brush gasket is disposed at least partially in a receiving space delimited by a support element and by a cover element. The support element, the cover element, and the brush gasket are secured using at least one fitting element in at least one recess, especially in an axial groove or bore, in the stator. In addition to being positioned by using the at least one fitting element, the components may also be affixed to the stator using an attachment element.Type: ApplicationFiled: July 9, 2004Publication date: January 13, 2005Applicant: MTU Aero Engines GmbHInventors: Stefan Beichl, Christoph Cernay, Alfons Gail, Erhan Ucgul