Patents by Inventor Gerhard Wydra
Gerhard Wydra 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: 7736732Abstract: A method for producing an erosion-resistant protective coating is disclosed. At least one lacquer material is provided wherein the lacquer material is a phosphate or silicate mixed with particles. Then, at least one layer of the lacquer material or each lacquer material is applied to a component that is to be protected from erosion. Then the applied lacquer layer or each applied lacquer layer is converted to a glass layer.Type: GrantFiled: June 19, 2004Date of Patent: June 15, 2010Assignee: MTU Aero Engines GmbHInventors: Erwin Bayer, Gerhard Wydra
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Publication number: 20070231586Abstract: A method is for producing a corrosion-resistant and oxidation-resistant coating, and a component part includes such a coating. According to the method, a component part made of a component part material and a slip material are made available, the slip material, besides a binding agent, including at least one metal powder, the metal powder being formed of at least 25 wt. % of at least one metal of the platinum group, and either being formed of jacketed powder cores, the powder cores being formed of at least one metal of the platinum group; and the jacketing of the powder cores being formed of a material based on the same material as the component part material, or being formed of a metal powder alloy which, besides the at least one metal of the platinum group includes at least one material based on the same material as the material of the component part. The slip material is applied at least from area to area onto the component part while forming a slip layer. The slip layer is then cured and dried.Type: ApplicationFiled: November 4, 2004Publication date: October 4, 2007Inventors: Anton Albrecht, Gerhard Wydra
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Publication number: 20060269759Abstract: A method for producing an erosion-resistant protective coating is disclosed. At least one lacquer material is provided wherein the lacquer material is a phosphate or silicate mixed with particles. Then, at least one layer of the lacquer material or each lacquer material is applied to a component that is to be protected from erosion. Then the applied lacquer layer or each applied lacquer layer is converted to a glass layer.Type: ApplicationFiled: June 19, 2004Publication date: November 30, 2006Inventors: Erwin Bayer, Gerhard Wydra
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Patent number: 7101448Abstract: The invention relates to a process for producing a cladding for a metallic component, such as for example a tip of a turbine blade, which cladding is provided on that surface of the component which is to be clad, the process being simple and inexpensive to carry out in terms of manufacturing technology and involving the following steps: producing a slip by mixing a powder, which contains at least one of the elements Ni, Cr or Ce, with a binder; applying the slip to the surface which is to be clad; adding ceramic particles before or after the slip is applied; drying the slip at a temperature of from room temperature to 300° C.; and alitizing the layer of slip.Type: GrantFiled: January 21, 2003Date of Patent: September 5, 2006Assignee: MTU Aero Engines GmbHInventor: Gerhard Wydra
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Patent number: 6709711Abstract: The invention is directed to a method for producing a corrosion-resistant and oxidization-resistant layer that is applied onto a component part, whereby the method can be simply and cost-beneficially implemented in fabrication-oriented terms and comprises the steps: a) producing a slip by mixing powder containing at least one of the elements Cr, Ni or Ce with a binding agent; b) applying the slip onto the component part; c) drying the slip at temperatures from room temperature through 300° C.; and d) alitizing the slip layer.Type: GrantFiled: April 19, 2000Date of Patent: March 23, 2004Assignee: MTU Motoren-und Turbinen-Union München GmbHInventors: Gerhard Wydra, Martin Thoma, Horst Pillhoefer
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Publication number: 20030111140Abstract: The invention relates to a process for producing a cladding for a metallic component, such as for example a tip of a turbine blade, which cladding is provided on that surface of the component which is to be clad, the process being simple and inexpensive to carry out in terms of manufacturing technology and involving the following steps: producing a slip by mixing a powder, which contains at least one of the elements Ni, Cr or Ce, with a binder; applying the slip to the surface which is to be clad; adding ceramic particles before or after the slip is applied; drying the slip at a temperature of from room temperature to 300° C.; and alitizing the layer of slip.Type: ApplicationFiled: January 21, 2003Publication date: June 19, 2003Applicant: MTU AERO ENGINES GmbH.Inventor: Gerhard Wydra
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Patent number: 6440499Abstract: A method for producing a corrosion-resistant and an oxidation-resistant coating on a component in which a slurry is formed by mixing a binder solution with (1) a base powder selected from the group consisting of (a) MCrAlY wherein M is Ni or Co or both, (b) NiCrAl and (c) mixtures of (a) and (b) with (2) an added powder of Al, Pt, Pd, Si or mixtures thereof, each of the said powders having a grain size between 5 and 120 &mgr;m. The slurry is applied onto a component made of a superalloy based on nickel or cobalt. The slurry is hardened on the component to form a hardened slurry coating by heating the slurry to a temperature between room temperature and 450° C., and the hardened slurry coating is heated, to produce diffusion thereof into the component, at a temperature between 750° C. and 1250° C.Type: GrantFiled: September 8, 2000Date of Patent: August 27, 2002Assignee: MTU Aero Engines GmbHInventors: Gerhard Wydra, Thomas Cosack, Wolfgang Hinreiner
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Patent number: 5700743Abstract: A structural component which consists of a fiber-reinforced, composite material is provided with a protective coating against erosion. The protective coating includes an adhesion-promoting, intermediate layer on the component, an electrically insulating baked, inorganic lacquer layer for protection against erosion and an electrically conducting covering layer, for protection against lightning strikes. The covering layer consists of a baked and compressed inorganic lacquer and the lacquer of the lacquer layer and of the covering layer is baked on the component below the temperature which causes damage to the structural component or below the softening or decomposition temperature of the component. The protective layer is advantageously used for the external components of propulsion units, such as housings, nose cones or fan blades.Type: GrantFiled: March 10, 1997Date of Patent: December 23, 1997Assignee: MTU Motoren-Und Turbinen-Union Munchen GmbHInventors: Franz Puchinger, Axel Rossman, Siegfried Sikorski, Gerhard Wydra
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Patent number: 5622474Abstract: Run-on linings for turbo-engines are arranged between the free ends of moving blades and a housing of a compressor or a turbine of a turbo-engine. The run-on linings are formed of a carrier and fiber bundles and are fastened on the circumference of the housing.Type: GrantFiled: September 14, 1995Date of Patent: April 22, 1997Assignee: MTU Motoren- Und Turbinen-Union Muenchen GmbHInventors: Klemens Werner, Paul Lottes, Hans-Juergen Schmuhl, Lothar Reisinger, Gerhard Wydra, Dietrich Schulte
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Patent number: 5270081Abstract: A structural component made of an iron-base alloy is protected against corrosion by a coating which is produced to have three layers. First, a primary coating or first layer is applied, and then a top coating or second layer is applied. An intermediate layer is formed by a reaction between the first and second layers. Specifically, the intermediate layer is formed after application of the primary coating and of the top coating, by a heat treatment within a reaction temperature range in which intermetallic nickel aluminum or cobalt aluminum compounds are formed. A fourth sealing coat is optional. The primary coating is a nickel or cobalt coating. The intermediate layer comprises intermetallic compounds of nickel aluminide or cobalt aluminide formed by the reaction. The top coating is an aluminum base or aluminum alloy base high-temperature lacquer including a binder. Such a combination coating is especially resistant to fretting, oxidation and etching corrosion.Type: GrantFiled: December 4, 1992Date of Patent: December 14, 1993Assignee: MTU Motoren-Und Turbinen-Union Muenchen GmbHInventors: Karl-Heinz Manier, Gerhard Wydra
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Patent number: 5236788Abstract: A structural component made of an iron-base alloy is provided with a corrosion inhibiting coating which has three layers, namely a primary coating or layer, an intermediate layer, and a top coating or layer. A fourth sealing coat is optional. The primary coating is a nickel or cobalt coating. The intermediate layer comprises intermetallic compounds of nickel aluminide or cobalt aluminide. The top coating is an aluminum base or aluminum alloy base high-temperature lacquer including a binder. Such a combination coating is especially resistant to fretting, oxidation and etch corrosion. The component is suitable especially for parts of gas turbine engine housings. The intermediate layer is formed after application of the primary coating and of the top coating, by a heat treatment within a reaction temperature range in which intermetallic nickel aluminum or cobalt aluminum compounds are formed.Type: GrantFiled: January 28, 1991Date of Patent: August 17, 1993Assignee: MTU Motoren- Und Turbinen-Union Muenchen GmbHInventors: Karl-Heinz Manier, Gerhard Wydra
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Patent number: 5202163Abstract: A method for producing a surface coating provides protection of a structural component of metal against titanium fires that can be caused by flying and burning titanium droplets, e.g. in a propulsion unit. The protection against titanium fires of metal structural components is provided by embedding ceramic fibers in a matrix material of a high temperature lacquer having dispersed therein aluminum powder as a filler material. The high temperature resistant lacquer is formed of silicates as a vehicle in which the aluminum powder is dispersed.Type: GrantFiled: November 5, 1991Date of Patent: April 13, 1993Assignee: MTU Motoren-und Turbinen-Union Muenchen GmbHInventors: Thomas Uihlein, Gerhard Wydra
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Patent number: 5102697Abstract: A structural component of titanium or titanium alloy is provided with a protective coating made substantially of an oxidation resistant and diffusion inhibiting base layer (2), an intermediate layer (3) forming a titanium fire inhibiting layer, and a cover layer (4) forming a passivating sealing layer. These layers are applied by various methods.Type: GrantFiled: November 2, 1990Date of Patent: April 7, 1992Assignee: MTU Motoren- und Turbinen-Union Muenchen GmbHInventors: Richard Grunke, Lothar Peichl, Franz Puchinger, Gerhard Wydra
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Patent number: 5087512Abstract: A structural component of metal is protected against titanium fires that can be caused by flying and burning titanium droplets, e.g. in a propulsion unit. The protection against titanium fires of metal structural components is provided by a surface coating made of ceramic fibers embedded in a matrix material of a high temperature lacquer having dispersed therein aluminum powder as a filler material. The high temperature resistant lacquer is formed of silicates as a vehicle in which the aluminum powder is dispersed.Type: GrantFiled: December 11, 1990Date of Patent: February 11, 1992Assignee: MTU Motoren-und Turbinen-Union Muenchen GmbHInventors: Thomas Uihlein, Gerhard Wydra
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Patent number: 5006419Abstract: A structural component of titanium or titanium alloy is provided with a protective coating made substantially of an oxidation resistant and diffusion inhibiting base layer (2), an intermediate layer (3) forming a titanium fire inhibiting layer, and a cover layer (4) forming a passivating sealing layer. These layers are applied by various methods.Type: GrantFiled: February 26, 1990Date of Patent: April 9, 1991Assignee: MTU Motoren-und Turbinen-Union Muenchen GmbHInventors: Richard Grunke, Lothar Peichl, Franz Puchinger, Gerhard Wydra
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Patent number: 4859506Abstract: Synthetic material substrates are protected against erosion and corrosion by a lacquer type coating which is baked or bonded onto the substrate at relatively low temperatures below 200.degree. C. to protect the synthetic material substrate against damage. The coating is a dispersion of metal powder in an aqueous solution of about equal weight proportions of phosphorous acid and phosphoric acid with an optional weight proportion of not more than 5 percent of aluminum phosphate, and about 10 to 20 weight percent of chromic acid. The remainder is water.Type: GrantFiled: June 28, 1988Date of Patent: August 22, 1989Assignee: MTU Motoren-und Turbinen-Union Muenchen GmbHInventors: Franz Puchinger, Gerhard Wydra
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Patent number: 4838942Abstract: Synthetic material substrates are protected against erosion and corrosion by a lacquer type coating which is baked or bonded onto the substrate at relatively low temperatures below 200.degree. C. to protect the synthetic material substrate against damage. The coating is a dispersion of metal powder in an aqueous solution of about equal weight proportions of phosphorous acid and phosphoric acid with an optional weight proportion of not more than 5 percent of aluminum phosphate, and about 10 to 20 weight percent of chromic acid. The remainder is water.Type: GrantFiled: December 23, 1987Date of Patent: June 13, 1989Assignee: MTU-Motoren-und Turbinen-Union Muenchen GmbHInventors: Frans Puchinger, Gerhard Wydra