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).

  • Publication number: 20140103913
    Abstract: 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: Application
    Filed: June 20, 2012
    Publication date: April 17, 2014
    Applicant: BorgWarner Inc.
    Inventor: Ralf Christmann
  • Patent number: 8627714
    Abstract: 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: Grant
    Filed: December 4, 2009
    Date of Patent: January 14, 2014
    Assignee: BorgWarner Inc.
    Inventor: Ralf Christmann
  • Patent number: 8629675
    Abstract: 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: Grant
    Filed: December 12, 2008
    Date of Patent: January 14, 2014
    Assignees: BorgWarner BERU Systems GmbH, BorgWarner Inc.
    Inventors: Ralf Christmann, Stefan Leopold, Arno Marto, Wolfgang Schuele, Klaus-Juergen Wagner
  • Publication number: 20130243572
    Abstract: 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: Application
    Filed: November 23, 2011
    Publication date: September 19, 2013
    Applicant: BORGWARNER INC.
    Inventors: Leif Heidingsfelder, Thomas Ramb, Ralf Christmann, Nermin Osmanovic
  • Publication number: 20130216375
    Abstract: 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: Application
    Filed: November 3, 2011
    Publication date: August 22, 2013
    Applicant: BorgWarner Inc.
    Inventor: Ralf Christmann
  • Publication number: 20130202431
    Abstract: 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: Application
    Filed: October 24, 2011
    Publication date: August 8, 2013
    Applicant: BorgWarner Inc.
    Inventors: Leif Heidingsfelder, Thomas Ramb, Thomas Fitting, Michael Stilgenbauer, Ralf Christmann
  • Publication number: 20130092863
    Abstract: 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: Application
    Filed: July 1, 2011
    Publication date: April 18, 2013
    Applicant: BorgWarner Inc.
    Inventor: Ralf Christmann
  • Publication number: 20120266594
    Abstract: 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: Application
    Filed: December 14, 2010
    Publication date: October 25, 2012
    Applicant: BORGWARNER INC.
    Inventor: Ralf Christmann
  • Publication number: 20120055155
    Abstract: 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: Application
    Filed: May 13, 2010
    Publication date: March 8, 2012
    Applicant: BORGWARNER INC.
    Inventors: Ralf Christmann, Rolf Sauerstein, Christian Haibt
  • Publication number: 20110239647
    Abstract: 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: Application
    Filed: December 4, 2009
    Publication date: October 6, 2011
    Applicant: BORGWARNER INC.
    Inventor: Ralf Christmann
  • Publication number: 20100308807
    Abstract: 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: Application
    Filed: December 12, 2008
    Publication date: December 9, 2010
    Inventors: Ralf Christmann, Stefan Leopold, Arno Marto, Wolfgang Schuele, Klaus-Juergen Wagner
  • Publication number: 20100101225
    Abstract: 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: Application
    Filed: October 24, 2007
    Publication date: April 29, 2010
    Applicant: BorgWarner INC.
    Inventor: Ralf Christmann
  • Publication number: 20100058757
    Abstract: 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: Application
    Filed: October 24, 2007
    Publication date: March 11, 2010
    Applicant: BORGWARNER INC.
    Inventors: Volker Mueller, Ralf Christmann, Gerd Spinner