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).
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Patent number: 11371531Abstract: 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: GrantFiled: March 13, 2020Date of Patent: June 28, 2022Assignee: BorgWarner Inc.Inventors: Steffen Meyer-Salfeld, Rolf Sauerstein, Iago Gonzalez
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Publication number: 20210355961Abstract: 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: ApplicationFiled: May 12, 2021Publication date: November 18, 2021Inventor: Rolf Sauerstein
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Publication number: 20200291958Abstract: 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: ApplicationFiled: March 13, 2020Publication date: September 17, 2020Inventors: Steffen MEYER-SALFELD, Rolf SAUERSTEIN, Iago GONZALEZ
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Patent number: 10494990Abstract: 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: GrantFiled: February 2, 2016Date of Patent: December 3, 2019Assignee: BorgWarner Inc.Inventors: Rolf Sauerstein, Philip Christoph Parma, Sean Rylance, Andrew Day
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Patent number: 10309404Abstract: 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: GrantFiled: March 25, 2014Date of Patent: June 4, 2019Assignee: BorgWarner Inc.Inventors: Michael Stilgenbauer, Gerald Schall, Rolf Sauerstein, Roman Koenig, Matthias Ruh
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Publication number: 20180023459Abstract: 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: ApplicationFiled: February 2, 2016Publication date: January 25, 2018Inventors: Rolf SAUERSTEIN, Philip Christoph PARMA, Sean RYLANCE, Andrew DAY
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Patent number: 9856785Abstract: 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: GrantFiled: November 21, 2013Date of Patent: January 2, 2018Assignee: BorgWarner Inc.Inventors: Michael Stilgenbauer, Mathias Weber, Rolf Sauerstein
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Publication number: 20160040678Abstract: 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: ApplicationFiled: March 25, 2014Publication date: February 11, 2016Inventors: Michael STILGENBAUER, Gerald SCHALL, Rolf SAUERSTEIN, Roman KOENIG, Matthias RUH
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Publication number: 20150377062Abstract: 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: ApplicationFiled: June 25, 2015Publication date: December 31, 2015Inventors: Philip Parma, Rolf Sauerstein, Christian Fritz
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Publication number: 20150300244Abstract: 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: ApplicationFiled: November 21, 2013Publication date: October 22, 2015Applicant: BorgWarner Inc.Inventors: Michael STILGENBAUER, Mathias WEBER, Rolf SAUERSTEIN
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Patent number: 9016060Abstract: 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: GrantFiled: September 1, 2010Date of Patent: April 28, 2015Assignee: BorgWarner Inc.Inventor: Rolf Sauerstein
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Publication number: 20120159946Abstract: 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: ApplicationFiled: September 1, 2010Publication date: June 28, 2012Applicant: BORGWARNER INC.Inventor: Rolf Sauerstein
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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