Patents by Inventor Ralf Christmann
Ralf Christmann 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: 20140103913Abstract: A position sensor module (1) for control capsules (2), having a base carrier (3) which base carrier (3) has a first receiving space (4) in which is arranged a sensor chip (5) and a second receiving space (6) in which is arranged a plug contact strip (7) of a plug contact arrangement (8) which is connected to chip contacts (9) of the sensor chip (5), and a cover part (10) which covers the first receiving space (4) and the second receiving space (6). The cover part leaves open an access opening (11) to the plug contact strip (7), and fixes the sensor chip (5) and the plug contact arrangement (8) to the base carrier (3).Type: ApplicationFiled: June 20, 2012Publication date: April 17, 2014Applicant: BorgWarner Inc.Inventor: Ralf Christmann
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Patent number: 8627714Abstract: A method for preventing the rupture of a compressor wheel and/or turbine wheel of an exhaust-gas turbocharger of a motor vehicle includes establishing loading limit values (n(G)) for the compressor wheel and/or the turbine wheel in bench tests. The method further includes determining loading variables (n) for the compressor wheel and/or turbine wheel during the operation of the exhaust-gas turbocharger in the motor vehicle. In addition, the method includes processing the determined loading variables (n) in order to establish a loading characteristic value (n(i)) which represents real exhaust-gas turbocharger operation. Further, the method includes comparing the loading limit value (n(G)) with the loading characteristic value (n(i)). The method also includes outputting a warning (W) if the comparison of the loading limit value (n(G)) with the loading characteristic value (n(i)) yields an exceedance of a predefinable safety margin.Type: GrantFiled: December 4, 2009Date of Patent: January 14, 2014Assignee: BorgWarner Inc.Inventor: Ralf Christmann
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Patent number: 8629675Abstract: A linear sensor is described with a casing (5), with a pin (7) which contains a permanent magnet (1) and which is mounted in the casing (5) in a linearly displaceable manner against the force of a spring (6), and with a magnetic field sensor (3) attached to said casing (5) for detecting of a displacement of the permanent magnet (1). The invention provides that the pin (7) is controlled by a first cylindrical guide (8) and a second cylindrical guide (8).Type: GrantFiled: December 12, 2008Date of Patent: January 14, 2014Assignees: BorgWarner BERU Systems GmbH, BorgWarner Inc.Inventors: Ralf Christmann, Stefan Leopold, Arno Marto, Wolfgang Schuele, Klaus-Juergen Wagner
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Publication number: 20130243572Abstract: An exhaust-gas turbocharger (1) having a compressor (2); a turbine (3) which has a turbine housing (4); a bearing housing (5) which has a compressor-side flange and a turbine-side flange (6); a VTG cartridge (7) which has an adjusting ring (8); and an adjusting shaft (9) which is guided through the turbine-side flange (6) of the bearing housing (5), which has an inner lever (10) which engages into the adjusting ring (8) of the VTG cartridge (7), and which has an outer lever (11, 11?, 11?, 11??) which is connected to an actuating element (12) of an actuator (13), wherein the outer lever (11, 11?, 11?, 11??) has an open rounded fastening receptacle (14) into which an associated shaft portion (15) of the adjusting shaft (9) engages.Type: ApplicationFiled: November 23, 2011Publication date: September 19, 2013Applicant: BORGWARNER INC.Inventors: Leif Heidingsfelder, Thomas Ramb, Ralf Christmann, Nermin Osmanovic
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Publication number: 20130216375Abstract: An exhaust-gas turbocharger (1) having a charger housing (2) which has a compressor housing (3), a turbine housing (4) and a bearing housing (5), and having a control capsule (6) which is fastened to the charger housing (2) and which has a housing lower part (7) and a housing upper part (8). The charger housing (2) has a fastening bracket (9), and the control capsule housing lower part (7) and housing upper part (8) are formed as individual parts which can be preassembled to form the control capsule (6) and which are separate from the charger housing (2) and which, in the mounted state of the control capsule (6), are connected to the fastening bracket (9).Type: ApplicationFiled: November 3, 2011Publication date: August 22, 2013Applicant: BorgWarner Inc.Inventor: Ralf Christmann
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Publication number: 20130202431Abstract: An exhaust-gas turbocharger (1) having a compressor (2) which has a compressor housing (3), a turbine (4) which has a turbine housing (5), a bearing housing (6) between the compressor housing (3) and the turbine housing (5), and a control capsule (7) which has a housing (8) on which is provided a retaining device (9) which interacts with a fastening device (10) on the turbocharger in order to fix the control capsule (6) to the compressor housing (3), the turbine housing (5) or the bearing housing (6). The retaining device (9) is arranged on an outer circumferential region (11) of the control capsule (7), and the fastening device (10) fixes the retaining device (9) in a non-positively locking manner.Type: ApplicationFiled: October 24, 2011Publication date: August 8, 2013Applicant: BorgWarner Inc.Inventors: Leif Heidingsfelder, Thomas Ramb, Thomas Fitting, Michael Stilgenbauer, Ralf Christmann
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Publication number: 20130092863Abstract: The present invention relates to a valve control device (1) having a housing (2) which has a vacuum chamber (3) and an atmospheric pressure chamber (4) which are separated from one another in a gas-tight manner by a spring-loaded diaphragm (5); having a diaphragm plate (8) arranged on the diaphragm (5); and having a regulating rod (6) which, in the region of a regulating rod head (6A), is operatively connected to the diaphragm (5), wherein the diaphragm plate (8) is formed as a plastic injection-molded part.Type: ApplicationFiled: July 1, 2011Publication date: April 18, 2013Applicant: BorgWarner Inc.Inventor: Ralf Christmann
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Publication number: 20120266594Abstract: The present invention relates to an internal combustion engine (1), having an intake section (2) which has an intake line (3) in which a compressor (4) of an exhaust-gas turbocharger (5) is arranged; having an exhaust section (6) which has an exhaust line (7) in which a turbine (8) of the exhaust-gas turbocharger (5) is arranged; and having a low-pressure exhaust-gas recirculation device (9) which has an exhaust-gas recirculation line (10) which branches off from the exhaust line (7) downstream of the turbine (8) and which opens into the intake line (3) upstream of the compressor (4) and in which an exhaust-gas recirculation valve (11) is arranged. Here, a throttle device (12) is arranged in the intake line (3) upstream of the compressor (4).Type: ApplicationFiled: December 14, 2010Publication date: October 25, 2012Applicant: BORGWARNER INC.Inventor: Ralf Christmann
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Publication number: 20120055155Abstract: The invention relates to a wastegate (7) which is arranged externally with respect to the turbine housing on exhaust manifolds (3) integrated in the cylinder head (2). The internal combustion engine (1) comprises a cylinder head (2) which is provided with an integrated exhaust manifold (3); a turbocharger (4) which has a turbine (5) with a turbine housing (6); and a wastegate (7) which is arranged separately from the turbine housing (6).Type: ApplicationFiled: May 13, 2010Publication date: March 8, 2012Applicant: BORGWARNER INC.Inventors: Ralf Christmann, Rolf Sauerstein, Christian Haibt
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Publication number: 20110239647Abstract: A method for preventing the rupture of a compressor wheel and/or turbine wheel of an exhaust-gas turbocharger of a motor vehicle, having the following method steps: establishing loading limit values (n(G)) for the compressor wheel and/or the turbine wheel in bench tests; determining loading variables (n) for the compressor wheel and/or turbine wheel during the operation of the exhaust-gas turbocharger in the motor vehicle; processing the determined loading variables (n) in order to establish a loading characteristic value (n(i)) which represents real exhaust-gas turbocharger operation; comparing the loading limit value (n(G)) with the loading characteristic value (n(i)); and outputting a warning (W) if the comparison of the loading limit value (n(G)) with the loading characteristic value (n(i)) yields an exceedance of a predefinable safety margin.Type: ApplicationFiled: December 4, 2009Publication date: October 6, 2011Applicant: BORGWARNER INC.Inventor: Ralf Christmann
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Publication number: 20100308807Abstract: A linear sensor is described with a casing (5), with a pin (7) which contains a permanent magnet (1) and which is mounted in the casing (5) in a linearly displaceable manner against the force of a spring (6), and with a magnetic field sensor (3) attached to said casing (5) for detecting of a displacement of the permanent magnet (1). The invention provides that the pin (7) is controlled by a first cylindrical guide (8) and a second cylindrical guide (8).Type: ApplicationFiled: December 12, 2008Publication date: December 9, 2010Inventors: Ralf Christmann, Stefan Leopold, Arno Marto, Wolfgang Schuele, Klaus-Juergen Wagner
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Publication number: 20100101225Abstract: The present invention relates to a valve control device (1) having a housing (2), which comprises a first low pressure chamber (3) and a first atmospheric pressure chamber (4), which are separated from each other in a gas-tight manner by means of a spring-loaded first membrane (5); having a control rod (6) for controlling the position of a locking element of the bypass valve (7), wherein the control rod (6) is operatively connected to the first membrane (5), further having a second low pressure chamber (8), which is flow-connected to the first low pressure chamber (3), and having a second spring-loaded membrane (9), which is arranged in the second low pressure chamber (8) and is coupled to the first membrane (5), wherein the control rod (6) is mounted on the second membrane (9).Type: ApplicationFiled: October 24, 2007Publication date: April 29, 2010Applicant: BorgWarner INC.Inventor: Ralf Christmann
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Publication number: 20100058757Abstract: The invention relates to a regulating method for a turbocharger (1) with a turbine (4) which has a variable turbine geometry (VTG) provided with adjustable guide blades (5), having the following method steps: a) closing the guide blades (5) of the variable turbine geometry (VTG), as a function of the present operating point of the internal combustion engine which is turbocharged by means of the turbocharged (1), to the maximum possible closing position of the guide blades (5) for said operating point, and b) regulating the charge pressure (P2) by adjusting the position of the guide blades (5) in a closed regulating loop.Type: ApplicationFiled: October 24, 2007Publication date: March 11, 2010Applicant: BORGWARNER INC.Inventors: Volker Mueller, Ralf Christmann, Gerd Spinner