Patents by Inventor Rolf Sauerstein

Rolf Sauerstein 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).

  • Patent number: 11371531
    Abstract: Compressor for charging a combustion engine, comprising a compressor housing (1) with a volute (2), a compressor wheel (3) being arranged in the compressor housing (1), the compressor wheel (3) turning about an axis (A) and transporting gas into the volute (2), and an inlet channel (4), at least an end portion of the inlet channel (4) being oriented in the direction of the axis (A) in order to direct gas towards the compressor wheel in the axial direction, wherein an exhaust gas channel (5) terminates into the inlet channel (4) upstream of the compressor wheel (3), and wherein the exhaust gas channel (5) can be shut off by means of a valve (6), wherein a housing (8) of a driving device (7) of the valve (6) is integrally formed with the compressor housing (1).
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: June 28, 2022
    Assignee: BorgWarner Inc.
    Inventors: Steffen Meyer-Salfeld, Rolf Sauerstein, Iago Gonzalez
  • Publication number: 20210355961
    Abstract: A compressor device of a supercharging device for an internal combustion engine (1), having an inlet channel (21) with a side wall (23), an exhaust-gas inlet (25) in the side wall (23), at which exhaust-gas inlet an exhaust-gas recirculation channel (27) opens into the inlet channel (21), and a flow barrier (29) in the inlet channel (21), which flow barrier at least partially spans the exhaust-gas inlet (25), is spaced apart from the exhaust-gas inlet (25) and is suitable for diverting exhaust gas which flows from the exhaust-gas inlet (25) into the inlet channel (21) at an angle with respect to an axial direction of the inlet channel (21) or with respect to the axis of a compressor (3).
    Type: Application
    Filed: May 12, 2021
    Publication date: November 18, 2021
    Inventor: Rolf Sauerstein
  • Publication number: 20200291958
    Abstract: Compressor for charging a combustion engine, comprising a compressor housing (1) with a volute (2), a compressor wheel (3) being arranged in the compressor housing (1), the compressor wheel (3) turning about an axis (A) and transporting gas into the volute (2), and an inlet channel (4), at least an end portion of the inlet channel (4) being oriented in the direction of the axis (A) in order to direct gas towards the compressor wheel in the axial direction, wherein an exhaust gas channel (5) terminates into the inlet channel (4) upstream of the compressor wheel (3), and wherein the exhaust gas channel (5) can be shut off by means of a valve (6), wherein a housing (8) of a driving device (7) of the valve (6) is integrally formed with the compressor housing (1).
    Type: Application
    Filed: March 13, 2020
    Publication date: September 17, 2020
    Inventors: Steffen MEYER-SALFELD, Rolf SAUERSTEIN, Iago GONZALEZ
  • Patent number: 10494990
    Abstract: An exhaust gas turbocharger (1) including a compressor housing (2), a bearing housing (3), a turbine housing (4) in which a turbine wheel (5) is arranged, which has a housing inlet (6), which has a turbine spiral (7) connecting to the housing inlet (6), which has a housing outlet (8), and which has a wastegate arrangement (9), which in the open state brings the housing inlet (6) into flow connection with the housing outlet (8) for guiding a wastegate mass flow. The wastegate insert part (10) is arranged in the turbine housing (4) between the turbine wheel (5) and the housing outlet (8) and the open wastegate arrangement (9) introduces the wastegate mass flow into the wastegate insert arrangement (9).
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: December 3, 2019
    Assignee: BorgWarner Inc.
    Inventors: Rolf Sauerstein, Philip Christoph Parma, Sean Rylance, Andrew Day
  • Patent number: 10309404
    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); and a compressor-side and/or turbine-side charge pressure regulating device (6) which has a shut-off element (7) which opens or closes a flow opening (9). The shut-off element (7) is in the form of a slide which is mounted on a guide (8) so as to be longitudinally displaceable along a longitudinal central line (LM8) of the guide (8), and the flow opening (9) is arranged at least substantially at a right angle (?) with respect to the longitudinal central line (LM8) of the guide (8).
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: June 4, 2019
    Assignee: BorgWarner Inc.
    Inventors: Michael Stilgenbauer, Gerald Schall, Rolf Sauerstein, Roman Koenig, Matthias Ruh
  • Publication number: 20180023459
    Abstract: An exhaust gas turbocharger (1) including a compressor housing (2), a bearing housing (3), a turbine housing (4) in which a turbine wheel (5) is arranged, which has a housing inlet (6), which has a turbine spiral (7) connecting to the housing inlet (6), which has a housing outlet (8), and which has a wastegate arrangement (9), which in the open state brings the housing inlet (6) into flow connection with the housing outlet (8) for guiding a wastegate mass flow. The wastegate insert part (10) is arranged in the turbine housing (4) between the turbine wheel (5) and the housing outlet (8) and the open wastegate arrangement (9) introduces the wastegate mass flow into the wastegate insert arrangement (9).
    Type: Application
    Filed: February 2, 2016
    Publication date: January 25, 2018
    Inventors: Rolf SAUERSTEIN, Philip Christoph PARMA, Sean RYLANCE, Andrew DAY
  • Patent number: 9856785
    Abstract: An exhaust-gas turbocharger (1) having a compressor (2) which has a compressor housing (3); having a turbine (4) which has a turbine housing (5); and having a charge-pressure regulating device (6). The charge-pressure regulating device (6) has at least two flap arrangements (7, 8) and two bypass duct openings (9, 10) assigned to the flap arrangements (7, 8).
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: January 2, 2018
    Assignee: BorgWarner Inc.
    Inventors: Michael Stilgenbauer, Mathias Weber, Rolf Sauerstein
  • Publication number: 20160040678
    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); and a compressor-side and/or turbine-side charge pressure regulating device (6) which has a shut-off element (7) which opens or closes a flow opening (9). The shut-off element (7) is in the form of a slide which is mounted on a guide (8) so as to be longitudinally displaceable along a longitudinal central line (LM8) of the guide (8), and the flow opening (9) is arranged at least substantially at a right angle (?) with respect to the longitudinal central line (LM8) of the guide (8).
    Type: Application
    Filed: March 25, 2014
    Publication date: February 11, 2016
    Inventors: Michael STILGENBAUER, Gerald SCHALL, Rolf SAUERSTEIN, Roman KOENIG, Matthias RUH
  • Publication number: 20150377062
    Abstract: A method for detecting, avoiding and/or limiting critical operating states of an exhaust gas turbocharger which is operatively connected to a control unit, with the following method steps: a) estimating calculation of an axial thrust (FAX) on the basis of geometric variables of the exhaust gas turbocharger (1) and on the basis of signals and controlled variables of the control unit (2); b) determining a current load of an axial bearing (9) of a charger shaft (8) of the exhaust gas turbocharger (1) on the basis of the calculated axial thrust (FAX); and c) if appropriate, executing control interventions as a function of the determined axial bearing load.
    Type: Application
    Filed: June 25, 2015
    Publication date: December 31, 2015
    Inventors: Philip Parma, Rolf Sauerstein, Christian Fritz
  • Publication number: 20150300244
    Abstract: An exhaust-gas turbocharger (1) having a compressor (2) which has a compressor housing (3); having a turbine (4) which has a turbine housing (5); and having a charge-pressure regulating device (6). The charge-pressure regulating device (6) has at least two flap arrangements (7, 8) and two bypass duct openings (9, 10) assigned to the flap arrangements (7, 8).
    Type: Application
    Filed: November 21, 2013
    Publication date: October 22, 2015
    Applicant: BorgWarner Inc.
    Inventors: Michael STILGENBAUER, Mathias WEBER, Rolf SAUERSTEIN
  • Patent number: 9016060
    Abstract: An exhaust-gas supply device (1) of a turbine wheel (2) of an exhaust-gas turbocharger (3), having a two-channel turbine housing (4) and an exhaust manifold (7) which can be connected to an internal combustion engine (8), which exhaust manifold (7) has a first manifold channel (9) which connects first cylinders (Z1, Z4) of the internal combustion engine (8) so as to form a first manifold exhaust-gas path length, and a second manifold channel (10) which connects second cylinders (Z2, Z3) so as to form a second manifold exhaust-gas path length, to generate virtually identical overall exhaust-gas path lengths of the two channels.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: April 28, 2015
    Assignee: BorgWarner Inc.
    Inventor: Rolf Sauerstein
  • Publication number: 20120159946
    Abstract: An exhaust-gas supply device (1) of a turbine wheel (2) of an exhaust-gas turbocharger (3), having a two-channel turbine housing (4), and an exhaust manifold (7) which can be connected to an internal combustion engine (8), which exhaust manifold (7) has a first manifold channel (9) which connects first cylinders (Z1, Z4) of the internal combustion engine (8) so as to form a first manifold exhaust-gas path length, and a second manifold channel (10) which connects second cylinders (Z2, Z3) so as to form a second manifold exhaust-gas path length, to generate virtually identical overall exhaust-gas path lengths of the two channels.
    Type: Application
    Filed: September 1, 2010
    Publication date: June 28, 2012
    Applicant: BORGWARNER INC.
    Inventor: Rolf Sauerstein
  • 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