Patents by Inventor Michael Hötger
Michael Hötger 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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Publication number: 20180045171Abstract: An axial piston machine may include a rotor having a shaft rotatably mounted in a housing. A plurality of cylinders may be arranged annularly around the rotor. A plurality of pistons may each be disposed within each of the plurality of cylinders and may be constructed and arranged to selectively translate within each of the plurality of cylinders. Each of the plurality of cylinders may be disposed within a cylinder head and may be in operative communication with an inlet opening defined in the cylinder head and at least one outlet opening defined in the housing. An auxiliary outlet rotary slide valve may be operatively connected to the shaft in a rotationally fixed manner. The auxiliary outlet rotary slide valve may comprises an auxiliary outlet rotary opening constructed and arranged to connect to a vent duct of one of the plurality of cylinders based on an angle of rotation, and may vent the one of the plurality of cylinders.Type: ApplicationFiled: March 2, 2016Publication date: February 15, 2018Inventors: Michael Bucher, Christoph Fiala, Mirko Guenther, Michael Hoetger, Hannes Marlock, Falk Schneider
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Publication number: 20180045172Abstract: An axial piston machine may include a rotor with a shaft. A plurality of cylinders may be arranged in an annular manner about the shaft. A plurality of pistons may each be positioned within each of the plurality of cylinders and may be constructed and arranged to move translationally within the plurality of cylinders. A cylinder head may include a plurality of inlet openings and may be in operative communication with the plurality of cylinders. A sealing washer having a plurality of passage openings may be disposed on the cylinder head so that the plurality of passage openings and the plurality of inlet openings may be flush with one another. A number of the plurality of inlet openings may correspond to a number of the plurality of passage openings. A valve plate may be connected to the shaft in a rotationally fixed manner and may be constructed and arranged to be brought into congruence with the plurality of passage openings of the sealing washer based on a rotary angle.Type: ApplicationFiled: February 17, 2016Publication date: February 15, 2018Inventors: Michael Bucher, Christoph Fiala, Mirko Guenther, Michael Hoetger, Falk Schneider
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Patent number: 9856756Abstract: The invention relates to the use of a working medium in steam power plants having a steam generator for generating working medium vapor, a pump for generating an increased pressure in the working medium vapor, an expansion machine for generating mechanical and/or electrical work by expansion of the working medium from an elevated pressure to a lower pressure level under working conditions and a condenser for condensing the working medium, wherein the working medium contains a lubricant. The invention is characterized in that the working medium contains acetone and a lubricant.Type: GrantFiled: September 2, 2013Date of Patent: January 2, 2018Assignee: MAHLE INTERNATIONAL GMBHInventors: Michael Hoetger, Jörg Collisi
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Publication number: 20150240668Abstract: The invention relates to the use of a working medium in steam power plants having a steam generator for generating working medium vapor, a pump for generating an increased pressure in the working medium vapor, an expansion machine for generating mechanical and/or electrical work by expansion of the working medium from an elevated pressure to a lower pressure level under working conditions and a condenser for condensing the working medium, wherein the working medium contains a lubricant. The invention is characterized in that the working medium contains acetone and a lubricant.Type: ApplicationFiled: September 2, 2013Publication date: August 27, 2015Applicant: AMOVIS GMBHInventors: Michael Hoetger, Jörg Collisi
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Patent number: 8931545Abstract: A heat exchanger arrangement is provided for an internal-combustion engine having a heat engine, which converts hot steam of a working medium by way of an expansion device to kinetic energy. The working medium, that can be delivered by a pump, can be heated in a first heat exchanger by a coolant and in a second heat exchanger by an exhaust gas of the internal-combustion engine. In the delivery direction, the working medium first flows through the first heat exchanger and, subsequently, through the second heat exchanger. The exhaust gas can flow through the first heat exchanger.Type: GrantFiled: March 18, 2009Date of Patent: January 13, 2015Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Raymond Freymann, Wolfgang Strobl, Walter Huebner, Andreas Obieglo, Peter Doemeland, Norbert Kraus, Juergen Becker, Michael Hoetger, Christian Goebel, Goeran Gensicke
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Patent number: 8307651Abstract: The invention relates to an arrangement for exhaust gas heat utilization comprising a steam generator arrangement (20) to which exhaust gas is applied, in which heat contained in the exhaust gas can be transferred to a working medium for further utilization, characterized by a heat accumulator (38) to which the exhaust gas can be applied, and control means for controlling exhaust gas partial flows according to a value representing the available heat energy of the exhaust gas by the heat accumulator and the steam generator arrangement.Type: GrantFiled: June 6, 2008Date of Patent: November 13, 2012Assignees: AMOVIS GmbH, Voith Turbo GmbH & Co KGInventors: Michael Hoetger, Jorg Collisi, Jurgen Berger, Stephan Bartosch
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Patent number: 8091360Abstract: The invention relates to a drive system for motor vehicles comprising a waste heat-producing internal combustion engine and a circuit for draining off at least partially said waste heat with a working fluid which is relievable in an expansion machine, wherein said working fluid comprises several components, wherein at least one component is transferable into a gas phase by absorbing heat of the internal combustion engine and/or another source inside the drive system which also comprises means for separating the liquid fraction from the working fluid prior to the expansion machine pressure removal. The internal combustion engine can be cooled by a first cooling circuit. A second cooling circuit can be used in such a way that the first cooling circuit is cooled thereby.Type: GrantFiled: July 31, 2006Date of Patent: January 10, 2012Assignee: Amovis GmbHInventor: Michael Hoetger
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Publication number: 20100212304Abstract: The invention relates to a drive system for motor vehicles comprising a waste heat-producing internal combustion engine and a circuit for draining off at least partially said waste heat with a working fluid which is relievable in an expansion machine, wherein said working fluid comprises several components, wherein at least one component is transferable into a gas phase by absorbing heat of the internal combustion engine and/or another source inside the drive system which also comprises means for separating the liquid fraction from the working fluid prior to the expansion machine pressure removal. The internal combustion engine can be cooled by a first cooling circuit. A second cooling circuit can be used in such a way that the first cooling circuit is cooled thereby.Type: ApplicationFiled: July 31, 2006Publication date: August 26, 2010Inventor: Michael Hoetger
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Publication number: 20100205950Abstract: The invention relates to an arrangement for exhaust gas heat utilization comprising a steam generator arrangement (20) to which exhaust gas is applied, in which heat contained in the exhaust gas can be transferred to a working medium for further utilization, characterized by a heat accumulator (38) to which the exhaust gas can be applied, and control means for controlling exhaust gas partial flows according to a value representing the available heat energy of the exhaust gas by the heat accumulator and the steam generator arrangement.Type: ApplicationFiled: July 17, 2007Publication date: August 19, 2010Applicants: AMOVIS GmbH, Voith Turbo GmbH & Co KGInventors: Michael Hoetger, Jorg Collisi, Jurgen Berger, Stephan Bartosch
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Publication number: 20090229786Abstract: A heat exchanger arrangement is provided for an internal-combustion engine having a heat engine, which converts hot steam of a working medium by way of an expansion device to kinetic energy. The working medium, that can be delivered by a pump, can be heated in a first heat exchanger by a coolant and in a second heat exchanger by an exhaust gas of the internal-combustion engine. In the delivery direction, the working medium first flows through the first heat exchanger and, subsequently, through the second heat exchanger. The exhaust gas can flow through the first heat exchanger. A very high efficiency can be achieved for the internal-combustion engine with the above-described heat engine.Type: ApplicationFiled: March 18, 2009Publication date: September 17, 2009Applicant: Bayerische Motoren Werke AktiengesellschaftInventors: Raymond FREYMANN, Wolfgang STROBL, Walter HUEBNER, Andreas OBIEGLO, Peter DOEMELAND, Norbert KRAUS, Juergen BECKER, Michael HOETGER, Christian GOEBEL, Goeran GENSICKE
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Patent number: 7520133Abstract: A thermodynamic engine converts the superheated steam of at least one working medium into kinetic energy using a decompression device. Said engine includes a low-temperature circuit, in which a first working medium is transported through a first heat exchanger and subsequently through the decompression device and a high-temperature circuit, in which a second working medium is transported through a second heat exchanger and subsequently through the decompression device. The first heat exchanger and the second heat exchanger are located in the exhaust system of an internal combustion engine, and the internal combustion engine a coolant circuit can be used to heat the working mediums in separate collection containers.Type: GrantFiled: June 20, 2005Date of Patent: April 21, 2009Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Michael Hoetger, Herbert Clemens, Tobias Haas, Gunnar Freitag, Michael Preis, Raymond Freymann, Andreas Obieglo
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Patent number: 7464550Abstract: Motor vehicle comprises a combustion engine with internal combustion of fuel and/or cold-flame product for driving the motor vehicle and thereby producing exhaust gas and an auxiliary power unit comprising an external burner and an expansion machine. A fuel tank with fuel provides energy to the burner and the combustion engine. The motor vehicle has a cold-flame-reactor with means for feeding the fuel from the fuel tank to the cold-flame reactor, and at least a portion of the fuel is pre-combusted to a cold-flame product in the cold-flame reactor.Type: GrantFiled: November 19, 2004Date of Patent: December 16, 2008Assignee: Amovis GmbHInventors: Michael Hoetger, Detlef Wüsthoff, Herbert Clemens
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Patent number: 7399538Abstract: A solid body tribological pairing for machine parts comprising a first slide element from a first basic material and a second slide element from a second basic material is characterized in that at least one of the slide elements comprises a lubricant in the form of a hydroxide compound introduced into the basic material before its use as a machine part.Type: GrantFiled: May 8, 2003Date of Patent: July 15, 2008Assignee: AMOVIS GmbHInventor: Michael Hoetger
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Publication number: 20060277910Abstract: A steam cycle with a steam generator, adapted to have thermal energy transferred to an operating medium and a power engine adapted to convert the thermal energy comprised in the operating medium to mechanical energy, is characterized in that the operating medium contains at least one heterocyclic compound, especially a heterocyclic aromatic compound, for example 2-methyl pyridine, 3-methyl pyridine, pyridine, pyrrole and/or pyridazine. The operating medium can also contain one or more polymers which are mixable with water, for example polyethylene glycol or a polyphenyl, especially terphenyl, surfactant and/or other organic lubricants.Type: ApplicationFiled: May 26, 2004Publication date: December 14, 2006Inventor: Michael Hoetger
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Patent number: 7060199Abstract: The invention relates to a water-based biodegradable and non-toxic functional fluid for mechanical drives, preferably for use in steam engines. The object of providing such functional fluids for use in mechanical drives, particularly for the hydrodynamic lubrication of plain bearings, preferably for crankshafts of superheated steam engines, having customary bearing play which is not overly precise, is achieved. It should be capable of being used in closed power plant systems also at sump temperatures higher than 120° C., e.g. in the crankcase under a crank shaft, and should be water-based or water-dilutable. According to the invention, this is achieved by addition of a low percentage of polyaspartic acid to water or to water/glycol mixtures, preferably polyaspartic acid having a molar mass of from greater than 1 000 to 10 000 g/mol being used.Type: GrantFiled: December 22, 2004Date of Patent: June 13, 2006Assignee: TEA GmbH Technnologiezentrum, Emissionsfreie AntriebeInventors: Mathias Woydt, Michael Hötger, Jens Kleemann
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Publication number: 20060099434Abstract: A solid body tribological pairing for machine parts comprising a first slide element from a first basic material and a second slide element from a second basic material is characterized in that at least one of the slide elements comprises a lubricant in the form of a hydroxide compound introduced into the basic material before its use as a machine part.Type: ApplicationFiled: May 8, 2003Publication date: May 11, 2006Inventor: Michael Hoetger
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Publication number: 20060035190Abstract: A porous burner is configured for burning a fuel-air mixture and to generate a hot flue gas. The burner has a housing and porous material in the housing. The porous material is formed of silicone carbide that is resistant to high temperatures and facilitates combustion. The porous body in the housing is formed of a siliconized carbon fabric with a regular, uniform structure. The shape of the silicon carbide fabric deviates from a planar surface, for example with corrugations, and a plurality of such fabric sections are laid on top of one another.Type: ApplicationFiled: October 17, 2005Publication date: February 16, 2006Inventors: Michael Hoetger, Walter Thiele
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Publication number: 20050229595Abstract: A thermodynamic engine converts the superheated steam of at least one working medium into kinetic energy using a decompression device. Said engine includes a low-temperature circuit, in which a first working medium is transported through a first heat exchanger and subsequently through the decompression device and a high-temperature circuit, in which a second working medium is transported through a second heat exchanger and subsequently through the decompression device. The first heat exchanger and the second heat exchanger are located in the exhaust system of an internal combustion engine, and the internal combustion engine a coolant circuit can be used to heat the working mediums in separate collection containers.Type: ApplicationFiled: June 20, 2005Publication date: October 20, 2005Applicant: Bayerische Motoren Werke AGInventors: Michael Hoetger, Herbert Clemens, Tobias Haas, Gunner Freitag, Michael Preis, Raymond Freymann, Andreas Obieglo
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Patent number: 6941854Abstract: A pair of sliding elements for machine parts exposed to high-pressure and high-temperature steam, preferably piston-cylinder arrangements for steam engines. The first sliding element is produced from a synthetic, fired but not graphitized carbon material which comprises graphitized carbon black and/or natural graphite as significant filler and whose pores are filled with metal, metal alloy, a ceramic, synthetic resin and/or pitch which has been carbonized, preferably in the form of a piston and/or piston ring. The second sliding element, preferably in the form of a cylinder liner or guide bush, comprising an iron-containing, high-temperature-resistant material which is preferably alloyed with chromium and/or nickel and is provided at least on the surface layer with a nitride layer.Type: GrantFiled: May 29, 2002Date of Patent: September 13, 2005Assignees: SGL Carbon AG, TEA GmbH Technologiezentrum Emissionsfreie AntriebeInventors: Michael Hötger, Jens Kleemann, Axel Riepe, Walter Thiele
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Publication number: 20050167173Abstract: Motor vehicle comprises a combustion engine with internal combustion of fuel and/or cold-flame product for driving the motor vehicle and thereby producing exhaust gas and an auxiliary power unit comprising an external burner and an expansion machine. A fuel tank with fuel provides energy to the burner and the combustion engine. The motor vehicle has a cold-flame-reactor with means for feeding the fuel from the fuel tank to the cold-flame reactor, and at least a portion of the fuel is pre-combusted to a cold-flame product in the cold-flame reactor.Type: ApplicationFiled: November 19, 2004Publication date: August 4, 2005Inventors: Michael Hoetger, Detlef Wusthoff, Herbert Clemens