Patents by Inventor Moritz Bauer
Moritz Bauer 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: 8631915Abstract: Brake disk rings which have perforation holes perpendicular to the plane of the friction surfaces, characterized in that the perforation holes each have a distance from their nearest neighbors which is always at most 30 mm and on average is at least twice the average hole diameter.Type: GrantFiled: December 19, 2007Date of Patent: January 21, 2014Assignee: Audi, AGInventors: Jens Rosenlocher, Heino Sieber, Ralph Renz, Moritz Bauer
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Patent number: 7799250Abstract: Ceramic friction linings comprising a material consisting essentially of metal oxides which are present in the form of a sintered ceramic or in the form of ceramic particles bound by carbon and/or carbides, processes for producing them and their use in combination with ceramic friction bodies, in particular for high-performance brakes.Type: GrantFiled: February 16, 2006Date of Patent: September 21, 2010Assignee: Audi AGInventors: Ronald Huener, Moritz Bauer, Peter Winkelmann
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Patent number: 7767733Abstract: Clutch lings comprising fiber-reinforced ceramic materials which comprise carbon fibers and whose matrix material is selected from among inorganic polymers, oxidic ceramics, set cements, organoelement polymers and finely divided inorganic solids which are held together by an inorganic or organic binders.Type: GrantFiled: August 17, 2004Date of Patent: August 3, 2010Assignee: SGL Carbon AGInventors: Andreas Kienzle, Mario Krupka, Gustavo Cabello, Ronald Hüner, Moritz Bauer
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Patent number: 7445095Abstract: A brake system includes a friction coupling having organically or inorganically bound metal-containing, sintered-metal-containing and/or CFC-containing brake linings and a brake disc of fiber-reinforced C/SiC ceramic composite material. A friction layer and/or a surface of the brake disc subject to friction has a proportion of SiC greater than 65% and material compositions in a core region and a surface region of the brake disc are different. The brake system may be used in motor vehicles, rail vehicles or aircraft.Type: GrantFiled: June 14, 2002Date of Patent: November 4, 2008Assignee: AUDI AGInventors: Moritz Bauer, Udo Gruber, Michael Heine, Andreas Kienzle, Rainer Zimmermann-Chopin
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Patent number: 7419700Abstract: Carbon-ceramic brake discs, the remaining porosity in which, after infiltration with a carbide-forming element and reaction of this element with at least part of the carbon in the preliminary body of the carbon-ceramic brake disc to form carbides, is at least partly filled with particles whose average diameter is in the range from 0.5 nm to 20 nm, and a process for producing carbon-ceramic brake discs with reduced porosity, wherein carbon-ceramic brake discs are treated with a solution of organic compounds of boron, zirconium, titanium, silicon or aluminum or mixtures of such compounds, the cited organic compounds being present as sols in an organic solvent, after removal from the sol bath the brake discs treated in this way are dried in an oven at a heating rate of between 30 K/h and 300 K/h under air or protective gas and are then tempered at a final temperature of between 350° C. and 800° C.Type: GrantFiled: August 30, 2005Date of Patent: September 2, 2008Assignee: Audi AGInventors: Hans-Michael Güther, Jens Rosenlöcher, Moritz Bauer
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Publication number: 20080164110Abstract: Brake disk rings which have perforation holes perpendicular to the plane of the friction surfaces, characterized in that the perforation holes each have a distance from their nearest neighbors which is always at most 30 mm and on average is at least twice the average hole diameter.Type: ApplicationFiled: December 19, 2007Publication date: July 10, 2008Applicants: Audi AG, Dr. Ing. H.c. F. Porsche AGInventors: Jens Rosenlocher, Heino Sieber, Ralph Renz, Moritz Bauer
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Publication number: 20070237941Abstract: Carbon-ceramic brake discs, the remaining porosity in which, after infiltration with a carbide-forming element and reaction of this element with at least part of the carbon in the preliminary body of the carbon-ceramic brake disc to form carbides, is at least partly filled with particles whose average diameter is in the range from 0.5 nm to 20 nm, and a process for producing carbon- ceramic brake discs with reduced porosity, wherein carbon-ceramic brake discs are treated with a solution of organic compounds of boron, zirconium, titanium, silicon or aluminum or mixtures of such compounds, the cited organic compounds being present as sols in an organic solvent, after removal from the sol bath the brake discs treated in this way are dried in an oven at a heating rate of between 30 K/h and 300 K/h under air or protective gas and are then tempered at a final temperature of between 350° C. and 800° C.Type: ApplicationFiled: August 30, 2005Publication date: October 11, 2007Applicant: SGL CARBON AGInventors: Hans-Michael Guther, Jens Rosenlocher, Moritz Bauer
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Patent number: 7261846Abstract: A ceramic brake lining which is reinforced with carbon fibers and has a matrix which consists essentially of silicon carbide together with silicon and/or carbon, wherein the reinforcing fibers used are long fibers having a mean length of at least 10 mm which are aligned in the plane parallel to the friction surface, a process for its production and its use in combination with brake discs made of C/SiC or CFC or as lining in friction clutches.Type: GrantFiled: July 22, 2003Date of Patent: August 28, 2007Assignee: Audi AGInventors: Moritz Bauer, Ronald Huener, Peter Winkelmann
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Patent number: 7219776Abstract: A friction disc, in particular a brake or clutch disc, includes carbon fiber-reinforced ceramic composite material with at least one top surface formed as a friction surface. At least part of the friction surface is formed of a different material, in particular of a carbon-containing material. The different material exhibits lower wear and oxidation resistance than that of the rest of the friction surface and a supporting zone of the friction disc. A visual, audible or mechanical signal is produced under operating conditions due to comparatively greater wear. The signal provides a warning that the service life of the friction disc is being exceeded. A process for producing the friction disc is also provided.Type: GrantFiled: April 18, 2002Date of Patent: May 22, 2007Assignee: Audi AGInventors: Moritz Bauer, Bodo Benitsch, Martin Christ, Udo Gruber, Michael Heine, Andreas Kienzle, Jens Rosenlöcher, Rainer Zimmermann-Chopin
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Patent number: 7138190Abstract: Composite which contains reinforcing fibers comprising carbon and whose matrix comprises silicon carbide, silicon and copper, with the mass fraction of copper in the composite being up to 55%, processes for producing it, in particular by liquid infiltration of C/C intermediate bodies with melts comprising Si and/or Cu and Si, and also its use as friction lining in a friction pairing with ceramic brake discs or clutch discs comprising C/SiC.Type: GrantFiled: March 19, 2003Date of Patent: November 21, 2006Assignee: SGL Carbon AGInventors: Moritz Bauer, Martin Christ, Ronald Huener, Andreas Kienzle, Rainer Zimmermann-Chopin
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Patent number: 7105111Abstract: Process for producing hollow bodies comprising fibre-reinforced ceramic materials, where cores whose shape corresponds to that of the hollow spaces are produced in a first step, a green body is produced in a second step by introducing the abovementioned cores and a press moulding compound into a mould, where the press moulding compound comprises carbon fibres and/or carbon threads and pitch and/or resins, the green body is cured in a third step by heating under pressure, and then carbonised in a fourth step by heating in the absence of oxidants to form a C/C body, which latter can be infiltrated with liquid metal with retention of its shape in a fifth step, with at least partial formation of carbides, where the cores comprise a material which is non-meltable but undergoes at least sufficient shrinkage above the curing temperature of the shaping by pressing of the press moulding compound for the shrunken core to be able to be taken out from the carbonised body; hollow bodies produced by this process and also tType: GrantFiled: September 26, 2002Date of Patent: September 12, 2006Assignee: SGL Carbon AGInventors: Moritz Bauer, Michael Heine, Udo Gruber, Ronald Huener, Andreas Kienzle, Andreas Rahn, Rainer Zimmermann-Chopin
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Publication number: 20060186565Abstract: Ceramic friction linings comprising a material consisting essentially of metal oxides which are present in the form of a sintered ceramic or in the form of ceramic particles bound by carbon and/or carbides, processes for producing them and their use in combination with ceramic friction bodies, in particular for high-performance brakesType: ApplicationFiled: February 16, 2006Publication date: August 24, 2006Inventors: Ronald Huener, Moritz Bauer, Peter Winkelmann
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Publication number: 20060071373Abstract: Process for producing hollow bodies comprising fibre-reinforced ceramic materials, where cores whose shape corresponds to that of the hollow spaces are produced in a first step, a green body is produced in a second step by introducing the abovementioned cores and a press moulding compound into a mould, where the press moulding compound comprises carbon fibres and/or carbon threads and pitch and/or resins, the green body is cured in a third step by heating under pressure, and then carbonised in a fourth step by heating in the absence of oxidants to form a C/C body, which latter can be infiltrated with liquid metal with retention of its shape in a fifth step, with at least partial formation of carbides, where the cores comprise a material which is non-meltable but undergoes at least sufficient shrinkage above the curing temperature of the shaping by pressing of the press moulding compound for the shrunken core to be able to be taken out from the carbonised body; hollow bodies produced by this process and also tType: ApplicationFiled: September 26, 2002Publication date: April 6, 2006Inventors: Moritz Bauer, Michael Heine, Udo Gruber, Ronald Huener, Andreas Kienzle, Andreas Rahn, Rainer Zimmermann-Chopin
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Patent number: 7011786Abstract: Process for producing shaped bodies comprising fiber-reinforced ceramic materials, where a green body is produced in a first step by introducing a press moulding composition into a mold, where the press moulding composition comprises carbon fibers and/or carbon filaments and pitch and/or resins which, when treated thermally and with the exclusion of oxidizing agents, form carbon-containing residues, the green body is cured in a second step by heating to a temperature of from 120° C. to 280° C. under pressure, the cured green body, also referred to as intermediate body, is carbonized in a third step by heating in a nonoxidizing atmosphere to a temperature of from about 750° C. to about 1100° C.Type: GrantFiled: December 23, 2002Date of Patent: March 14, 2006Assignee: SGL Carbon AGInventors: Moritz Bauer, Michael Heine, Andreas Kienzle, Ronald Huener, Rainer Zimmermann-Chopin, Andreas Rahn
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Patent number: 7011888Abstract: Process for protecting fiber-reinforced, carbon-containing composites whose matrix comprises, at least in the outer layer, silicon carbide (SiC) and also silicon (Si) and/or silicon alloys against oxidation, which comprises the steps a) impregnation of the composite with an aqueous, phosphate-containing solution, b) drying, c) heat treatment at a temperature which is at least sufficient to convert the dried solution into insoluble compounds which are suitable for forming a self-healing glass, wherein the composite is treated oxidatively to form silicon oxide (SiO2) either prior to step a), between steps a) and b) or during or after step b) and/or c).Type: GrantFiled: December 6, 2002Date of Patent: March 14, 2006Assignee: SGL Carbon AGInventors: Moritz Bauer, Martin Christ, Udo Gruber, Andreas Kienzle, Jens Rosenlöcher, Rainer Zimmerman-Chopin
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Patent number: 7011785Abstract: Process for producing hollow bodies comprising fiber-reinforced ceramic materials, where mold cores whose shape corresponds to that of the hollow spaces are produced in a first step, at least one mold core together with a press moulding composition or formable fiber composition are introduced into a mold, where the press moulding composition comprises carbon fibers and/or carbon filaments and thermally curable carbonizable binders, in such a way that the position of the cores corresponds to the desired position of the hollow spaces to be formed in a second step, the composition is cured in a third step by heating to a temperature of from 120° C. to 280° C., to give a green body, the strengthened green body is carbonized and or graphitized in a fourth step by heating in a nonoxidizing atmosphere to a temperature of from about 750° C. to about 2400° C.Type: GrantFiled: December 23, 2002Date of Patent: March 14, 2006Assignee: SGL Carbon AGInventors: Moritz Bauer, Michael Heine, Andreas Kienzle, Ronald Huener, Andreas Rahn, Rainer Zimmermann-Chopin
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Patent number: 6936341Abstract: Process for a fiber-reinforced ceramic material whose reinforcing fibers are present in the form of at least one of woven fabrics, short fibers and long fibers, wherein the mass ratio of the fibers in the form of woven fabrics, short fibers and long fibers is 0-35:25-80:0-45 and at least a part of the reinforcing fibers has at least one protective layer of carbon produced by pyrolysis of resins or pitches, boron compounds or phosphorus compounds or combinations thereof which have been deposited thereon, a process for producing it and its use as material for brake liningsType: GrantFiled: March 12, 2004Date of Patent: August 30, 2005Assignee: SGL Carbon AGInventors: Ronald Hüner, Moritz Bauer, Peter Winkelmann
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Publication number: 20050179152Abstract: Process for producing shaped bodies comprising fiber-reinforced ceramic materials, where a green body is produced in a first step by introducing a press moulding composition into a mold, where the press moulding composition comprises carbon fibers and/or carbon filaments and pitch and/or resins which, when treated thermally and with the exclusion of oxidizing agents, form carbon-containing residues, the green body is cured in a second step by heating to a temperature of from 120° C. to 280° C. under pressure, the cured green body, also referred to as intermediate body, is carbonized in a third step by heating in a nonoxidizing atmosphere to a temperature of from about 750° C. to about 1100° C.Type: ApplicationFiled: December 23, 2002Publication date: August 18, 2005Inventors: Moritz Bauer, Michael Heine, Andreas Kienzle, Ronald Huener, Rainer Zimmermann-Chopin, Andreas Rahn
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Patent number: 6926127Abstract: Friction members are composed of a ceramic composite material. The friction members can be used for motor vehicles as a clutch disk for friction clutches, for transmitting motive power, or as a brake disk. A friction zone of the friction member is composed of ceramic, in particular of Si and SiC. A core zone of the friction member is made from fiber-reinforced C/SiC, in particular of long fiber woven fabric-reinforced and short fiber-reinforced C/SiC.Type: GrantFiled: November 25, 2002Date of Patent: August 9, 2005Assignee: SGL Carbon AGInventors: Moritz Bauer, Michael Heine, Andreas Kienzle, Ingrid Krätschmer, Rainer Zimmermann-Chopin
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Patent number: 6908660Abstract: The present invention relates to shaped bodies made of fiber-reinforced ceramic composites and comprising a core zone and at least one covering layer which has a coefficient of thermal expansion which is higher than that of the core zone. The covering layer is an SiC-rich covering layer and is divided into segments which are separated from the adjacent segments by gaps or bridging zones of a material which is different from the material of the segments. The invention also relates to a process for producing such shaped bodies by infiltration of an intermediate body with molten silicon and their use for friction disks, in vehicle construction or as protective plates.Type: GrantFiled: November 22, 2002Date of Patent: June 21, 2005Assignee: SGL Carbon AGInventors: Moritz Bauer, Nadine Hander, Andreas Kienzle, Rainer Zimmermann-Chopin