Patents by Inventor Jan Ehrhard
Jan Ehrhard 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: 11959413Abstract: An exhaust gas turbocharger with an integrated catalyst substrate block and a hybrid vehicle having such a turbocharger are described. The exhaust gas turbocharger has a turbine housing, a turbine wheel and upstream ahead of the turbine wheel a hollow body-shaped catalyst substrate block, which is integrated in the exhaust gas ring duct of the turbine housing of the exhaust gas turbocharger. As a result of the upstream disposal of the turbine wheel and the integration in the exhaust gas ring duct of the turbine housing, particularly good emission values of an associated internal combustion engine can be achieved with a compact construction mode.Type: GrantFiled: November 24, 2021Date of Patent: April 16, 2024Assignee: VITESCO TECHNOLOGIES GMBHInventors: Sasa Slavic, Jan Ehrhard
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Publication number: 20240026811Abstract: An exhaust gas turbocharger with an integrated catalyst substrate block and a hybrid vehicle having such a turbocharger are described. The exhaust gas turbocharger has a turbine housing, a turbine wheel and upstream ahead of the turbine wheel a hollow body-shaped catalyst substrate block, which is integrated in the exhaust gas ring duct of the turbine housing of the exhaust gas turbocharger. As a result of the upstream disposal of the turbine wheel and the integration in the exhaust gas ring duct of the turbine housing, particularly good emission values of an associated internal combustion engine can be achieved with a compact construction mode.Type: ApplicationFiled: November 24, 2021Publication date: January 25, 2024Inventors: Sasa SLAVIC, Jan EHRHARD
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Patent number: 11168579Abstract: A turbocharger device includes an annular spring element for axially clamping a guide device of a variable turbine geometry against a turbine housing. The annular spring element rests radially outwardly on the bearing housing and radially inwardly on a component of the guide device. The spring element has an annular radial outer flange in contact with the bearing housing, and a plurality of tabs which extend from the outer flange radially inwardly in the direction of the guide device and come into contact with a component thereof. An annular spring element for such a turbocharger is also provided.Type: GrantFiled: September 10, 2018Date of Patent: November 9, 2021Assignee: Vitesco Technologies GmbHInventors: Jan Ehrhard, Holger Faeth, Daniel Kraus, Lukasz Przada, Benjamin Adler, Hildegard Lang, Simon Pflaum
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Patent number: 10774732Abstract: An exhaust-gas turbocharger for an internal combustion engine includes an intake duct for air, an exhaust-gas duct, a turbine arranged in the exhaust-gas duct, and a compressor impeller arranged in the intake duct, which turbine and compressor impeller are both arranged on a common shaft, wherein the exhaust-gas duct has a spiral housing which coaxially surrounds the turbine, and wherein, between the spiral housing and the turbine, a ring-shaped gap is provided through which the exhaust-gas flow flows circumferentially to the turbine, and wherein, in the ring-shaped gap, guide vanes are arranged which are rotatable about an adjustment axis by an adjustment mechanism for controlling the flow resistance. To compensate thermal expansions and shrinkages of the guide vanes under different operating conditions, the adjustment mechanism additionally has a displacement mechanism for displacing the guide vanes in the ring-shaped gap. The displacement mechanism is directly coupled to the adjustment mechanism.Type: GrantFiled: December 29, 2017Date of Patent: September 15, 2020Assignee: VITESCO TECHNOLOGIES GMBHInventors: Jan Ehrhard, Ralf Böning
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Publication number: 20200248578Abstract: A turbocharger device includes an annular spring element for axially clamping a guide device of a variable turbine geometry against a turbine housing. The annular spring element rests radially outwardly on the bearing housing and radially inwardly on a component of the guide device. The spring element has an annular radial outer flange in contact with the bearing housing, and a plurality of tabs which extend from the outer flange radially inwardly in the direction of the guide device and come into contact with a component thereof. An annular spring element for such a turbocharger is also provided.Type: ApplicationFiled: September 10, 2018Publication date: August 6, 2020Inventors: JAN EHRHARD, HOLGER FAETH, DANIEL KRAUS, LUKASZ PRZADA, BENJAMIN ADLER, HILDEGARD LANG, SIMON PFLAUM
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Patent number: 10526955Abstract: A supercharging device is disclosed for an internal combustion engine having an exhaust-gas turbocharger and a fresh-air compressor. The supercharging device includes a recuperation charger which has a compressor-turbine with a high-pressure side and a low-pressure side and which has an electromechanical motor-generator coupled to the compressor-turbine. The compressor-turbine is operable at least firstly when the supercharging device is configured in a booster operating mode in a manner driven by the motor-generator as a compressor for increasing the pressure of charge-air mass flow to the intake tract of the engine, and secondly when the supercharging device is configured in a recuperation operating mode in a manner driven by the charge-air mass flow as a turbine for energy recovery by the motor-generator.Type: GrantFiled: May 10, 2017Date of Patent: January 7, 2020Assignee: Vitesco Technologies GmbHInventors: Jan Ehrhard, Nisar Al-Hasan, Hong Zhang
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Patent number: 10513972Abstract: A supercharger device for an internal combustion engine, including an exhaust gas turbocharger and a recuperation charger having a compressor turbine and an electromechanical motor-generator coupled thereto. The compressor turbine is connectable on the low-pressure side thereof to a charge air supply line and on the high-pressure side of the compressor turbine to both the charge air supply line and an exhaust gas tract of the engine. The recuperation charger is able to be switched at least between a booster operative mode and a recuperation operative mode. The recuperation charger may be operated as a compressor driven by the motor-generator for increasing pressure in the charge air supply line in the booster operative mode, or driven by at least a portion of a charge air mass flow, the exhaust gas mass flow, or both, and operated as a turbine so as to recover energy by the motor-generator.Type: GrantFiled: May 31, 2017Date of Patent: December 24, 2019Assignee: Vitesco Technologies GmbHInventors: Jan Ehrhard, Nisar Al-Hasan, Hong Zhang
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Patent number: 10451107Abstract: A method for mounting a rolling bearing arrangement onto a rotor and into the bearing housing of a turbocharger is provided. The method includes inserting a component, which is deformable under the exertion of pressure, into the intermediate space between two rolling bearings of the rotor assembly. The rotor assembly includes a rotor shaft, inner bearing rings which are fastened to the rotor shaft or integrated into the rotor shaft and which have a spacing to one another, rolling elements which are inserted into the inner bearing rings, and outer bearing rings which likewise have a spacing to one another. The method also includes deforming, by exertion of pressure, the component that has been inserted into the intermediate space between the two rolling bearings, to set a desired axial preload between the two rolling bearings.Type: GrantFiled: February 18, 2018Date of Patent: October 22, 2019Assignee: CPT Group GmbHInventor: Jan Ehrhard
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Publication number: 20180180094Abstract: A method for mounting a rolling bearing arrangement onto a rotor and into the bearing housing of a turbocharger is provided. The method includes inserting a component, which is deformable under the exertion of pressure, into the intermediate space between two rolling bearings of the rotor assembly. The rotor assembly includes a rotor shaft, inner bearing rings which are fastened to the rotor shaft or integrated into the rotor shaft and which have a spacing to one another, rolling elements which are inserted into the inner bearing rings, and outer bearing rings which likewise have a spacing to one another. The method also includes deforming, by exertion of pressure, the component that has been inserted into the intermediate space between the two rolling bearings, to set a desired axial preload between the two rolling bearings.Type: ApplicationFiled: February 18, 2018Publication date: June 28, 2018Applicant: CONTINENTAL AUTOMOTIVE GMBHInventor: Jan Ehrhard
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Publication number: 20180119609Abstract: An exhaust-gas turbocharger for an internal combustion engine includes an intake duct for air, an exhaust-gas duct, a turbine arranged in the exhaust-gas duct, and a compressor impeller arranged in the intake duct, which turbine and compressor impeller are both arranged on a common shaft, wherein the exhaust-gas duct has a spiral housing which coaxially surrounds the turbine, and wherein, between the spiral housing and the turbine, a ring-shaped gap is provided through which the exhaust-gas flow flows circumferentially to the turbine, and wherein, in the ring-shaped gap, guide vanes are arranged which are rotatable about an adjustment axis by an adjustment mechanism for controlling the flow resistance. To compensate thermal expansions and shrinkages of the guide vanes under different operating conditions, the adjustment mechanism additionally has a displacement mechanism for displacing the guide vanes in the ring-shaped gap. The displacement mechanism is directly coupled to the adjustment mechanism.Type: ApplicationFiled: December 29, 2017Publication date: May 3, 2018Applicant: CONTINENTAL AUTOMOTIVE GMBHInventors: Jan Ehrhard, Ralf Böning
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Publication number: 20170306977Abstract: The disclosure relates to a compressor for an exhaust gas turbocharger. The compressor includes a compressor wheel, a compressor housing having a volute and a diffuser, and a device for modifying the diffuser width. The device for modifying the diffuser is configured to automatically alter the diffuser width as a function of one or more current operating parameters of the compressor.Type: ApplicationFiled: June 5, 2017Publication date: October 26, 2017Applicant: CONTINENTAL AUTOMOTIVE GMBHInventor: Jan Ehrhard
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Publication number: 20170260897Abstract: A supercharger device for an internal combustion engine, including an exhaust gas turbocharger and a recuperation charger having a compressor turbine and an electromechanical motor-generator coupled thereto. The compressor turbine is connectable on the low-pressure side thereof to a charge air supply line and on the high-pressure side of the compressor turbine to both the charge air supply line and an exhaust gas tract of the engine. The recuperation charger is able to be switched at least between a booster operative mode and a recuperation operative mode. The recuperation charger may be operated as a compressor driven by the motor-generator for increasing pressure in the charge air supply line in the booster operative mode, or driven by at least a portion of a charge air mass flow, the exhaust gas mass flow, or both, and operated as a turbine so as to recover energy by the motor-generator.Type: ApplicationFiled: May 31, 2017Publication date: September 14, 2017Applicant: CONTINENTAL AUTOMOTIVE GMBHInventors: Jan Ehrhard, Nisar Al-Hasan, Hong Zhang
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Patent number: 9759164Abstract: In a fluid energy machine, such as an exhaust gas turbocharger of an internal combustion engine of an automobile, with a casing accommodating a rotor wheel that is rotatable about a first axis of rotation extending in the axial direction of the casing, an inlet flow passage which extends generally in a flow direction at an angle relative to the axial and the radial directions to the housing, the flow passage is formed by spaced insertion elements with spherical sections that have a common center of curvature disposed on the first axis of rotation and guide vanes are supported between the spaced spherical wall sections of the insertion elements so as to be rotatable about a second axis of rotation which extends through the common center of curvature, and have opposite axial end walls also curved spherically with a center of curvature coinciding with the center of curvature of the insertion elements thereby to be pivotable between the two spaced spherical wall sections of the insertion elements with minimal cleType: GrantFiled: May 15, 2014Date of Patent: September 12, 2017Assignee: IHI CHARGING SYSTEMS INTERNATIONAL GMBHInventors: Tino Strauss, Jan Ehrhard
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Publication number: 20170241328Abstract: A supercharging device is disclosed for an internal combustion engine having an exhaust-gas turbocharger and a fresh-air compressor. The supercharging device includes a recuperation charger which has a compressor-turbine with a high-pressure side and a low-pressure side and which has an electromechanical motor-generator coupled to the compressor-turbine. The compressor-turbine is operable at least firstly when the supercharging device is configured in a booster operating mode in a manner driven by the motor-generator as a compressor for increasing the pressure of charge-air mass flow to the intake tract of the engine, and secondly when the supercharging device is configured in a recuperation operating mode in a manner driven by the charge-air mass flow as a turbine for energy recovery by the motor-generator.Type: ApplicationFiled: May 10, 2017Publication date: August 24, 2017Applicant: CONTINENTAL AUTOMOTIVE GMBHInventors: Jan Ehrhard, Nisar Al-Hasan, Hong Zhang
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Patent number: 9475539Abstract: A steering stop for bicycle handlebars, comprising a first stop element adapted to be fixed to the head tube of a bicycle fork, and a second stop element cooperating with the first stop element to limit the steering angle. The second stop element is adapted to be mounted to the bicycle frame, in particular to the top tube of the bicycle frame.Type: GrantFiled: September 27, 2012Date of Patent: October 25, 2016Assignee: CANYON BICYCLES GMBHInventors: Jan Ehrhard, Lutz Scheffer
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Patent number: 9145827Abstract: In an exhaust gas charger bleed valve with a valve disk by which the flow cross-section of a bypass duct, via which exhaust gas flow volume bypassing an impeller of the exhaust gas turbocharger is adjustable, the valve includes a valve disk with the exhaust gas turbocharger is adjustable, the valve includes a valve disk with a front end valve face which is formed so as to be asymmetric with respect to the valve disk attachment to a lever arm on which the valve disk is mounted.Type: GrantFiled: July 28, 2013Date of Patent: September 29, 2015Assignee: IHi CHARGING SYSTEMS INTERNATIONAL GMBHInventors: Bernhardt Lueddecke, Hermann Burmester, Jan Ehrhard, Dietmar Filsinger, Nobuguki Ikeya, Christian Winter, Achim-Hans Hinkelmann
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Publication number: 20150240656Abstract: In an exhaust gas turbine with a guide section for the exhaust gas turbine comprising a flow-through duct for conducting exhaust gas through the exhaust gas guide section, wherein the flow-through duct includes a wheel chamber in which a turbine wheel is rotatably supported and wherein, downstream of the wheel chamber, the flow-through duct has an outlet portion and upstream of the wheel chamber, the flow-through duct has an inlet portion with a bypass duct being formed in the exhaust gas guide section for by-passing the wheel chamber, the by-pass duct forms an annular opening adjacent the turbine wheel for directing by-pass exhaust gas into the exhaust gas outlet portion in an annular flow pattern along the outlet portion duct wall.Type: ApplicationFiled: May 9, 2015Publication date: August 27, 2015Applicant: IHI CHARGING SYSTEMS INTERNATIONAL GMBHInventors: Jan EHRHARD, Dietmar FILSINGER, Manfred GUTHOERLE, Peter FLEDERSBACHER
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Publication number: 20140248134Abstract: In a fluid energy machine, such as an exhaust gas turbocharger of an internal combustion engine of an automobile, with a casing accommodating a rotor wheel that is rotatable about a first axis of rotation extending in the axial direction of the casing, an inlet flow passage which extends generally in a flow direction at an angle relative to the axial and the radial directions to the housing, the flow passage is formed by spaced insertion elements with spherical sections that have a common center of curvature disposed on the first axis of rotation and guide vanes are supported between the spaced spherical wall sections of the insertion elements so as to be rotatable about a second axis of rotation which extends through the common center of curvature, and have opposite axial end walls also curved spherically with a center of curvature coinciding with the center of curvature of the insertion elements thereby to be pivotable between the two spaced spherical wall sections of the insertion elements with minimal cleType: ApplicationFiled: May 15, 2014Publication date: September 4, 2014Applicant: IHI CHARGING SYSTEMS INTERNATIONAL GMBHInventors: Tino STRAUSS, Jan EHRHARD
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Publication number: 20140084563Abstract: A steering stop for bicycle handlebars, comprising a first stop element adapted to be fixed to the head tube of a bicycle fork, and a second stop element cooperating with the first stop element to limit the steering angle. The second stop element is adapted to be mounted to the bicycle frame, in particular to the top tube of the bicycle frame.Type: ApplicationFiled: September 27, 2012Publication date: March 27, 2014Inventors: Jan Ehrhard, Lutz Scheffer
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Publication number: 20130305711Abstract: In an exhaust gas charger bleed valve with a valve disk by which the flow cross-section of a bypass duct, via which exhaust gas flow volume bypassing an impeller of the exhaust gas turbocharger is adjustable, the valve includes a valve disk with the exhaust gas turbocharger is adjustable, the valve includes a valve disk with a front end valve face which is formed so as to be asymmetric with respect to the valve disk attachment to a lever arm on which the valve disk is mounted.Type: ApplicationFiled: July 28, 2013Publication date: November 21, 2013Applicants: AUDI AG, IHI CHARGING SYSTEMS INTERNATIONAL GMBHInventors: Bernhardt Lueddecke, Hermann Burmester, Jan Ehrhard, Dietmar Filsinger, Nobuguki Ikeya, Christian Winter, Achim-Hans Hinkelmann