Patents by Inventor Jaroslaw KIERAT

Jaroslaw KIERAT 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: 11560831
    Abstract: An exhaust gas conduction system for a gasoline engine comprises an exhaust gas line and an intake line which can be connected to an intake manifold, a charge air compressor arranged in the intake line, and a turbine arranged in the exhaust gas line. The exhaust gas line has at least one bypass line with a bypass throttle valve. At least one exhaust gas recirculation line with an EGR throttle valve is provided. At least one particle filter is arranged in the bypass line and an exhaust gas valve is provided in the exhaust gas line.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: January 24, 2023
    Assignee: Tenneco GmbH
    Inventors: Philipp Kreutziger, Michael Fischer, Jaroslaw Kierat
  • Patent number: 11306688
    Abstract: The disclosure relates to a gasoline engine comprising an exhaust gas line which can be connected to an exhaust manifold of the gasoline engine, an intake line which can be connected to an intake manifold of the gasoline engine, a charge air compressor which is arranged in the intake line, and a turbine which is arranged in the exhaust gas line. The exhaust gas line has at least one bypass line with a bypass throttle valve, said line branching off from the exhaust gas line at a branch upstream of the turbine and branching back into the exhaust gas line at an opening downstream of the turbine.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: April 19, 2022
    Assignee: TENNECO GMBH
    Inventors: Philipp Kreutziger, Michael Fischer, Jaroslaw Kierat
  • Publication number: 20220106905
    Abstract: An exhaust gas conduction system for a gasoline engine comprises an exhaust gas line and an intake line which can be connected to an intake manifold, a charge air compressor arranged in the intake line, and a turbine arranged in the exhaust gas line. The exhaust gas line has at least one bypass line with a bypass throttle valve. At least one exhaust gas recirculation line with an EGR throttle valve is provided. At least one particle filter is arranged in the bypass line and an exhaust gas valve is provided in the exhaust gas line.
    Type: Application
    Filed: December 15, 2021
    Publication date: April 7, 2022
    Inventors: Philipp Kreutziger, Michael Fischer, Jaroslaw Kierat
  • Patent number: 11236664
    Abstract: The disclosure relates to an exhaust gas conduction system for a gasoline engine, comprising an exhaust gas line which can be connected to an exhaust manifold of the gasoline engine, an intake line which can be connected to an intake manifold of the gasoline engine, a charge air compressor which is arranged in the intake line, and a turbine which is arranged in the exhaust gas line. The exhaust gas line has at least one bypass line with a bypass throttle valve, said line branching off from the exhaust gas line upstream of the turbine and branching back into the exhaust gas line at an opening downstream of the turbine. At least one exhaust gas recirculation line with an EGR throttle valve is provided, said line opening into the intake line, wherein the exhaust gas recirculation line branches off from the bypass line at a branch, and the bypass throttle valve is arranged upstream of the branch of the exhaust gas recirculation line.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: February 1, 2022
    Assignee: Tenneco GmbH
    Inventors: Philipp Kreutziger, Michael Fischer, Jaroslaw Kierat
  • Publication number: 20210140394
    Abstract: The disclosure relates to a gasoline engine comprising an exhaust gas line which can be connected to an exhaust manifold of the gasoline engine, an intake line which can be connected to an intake manifold of the gasoline engine, a charge air compressor which is arranged in the intake line, and a turbine which is arranged in the exhaust gas line. The exhaust gas line has at least one bypass line with a bypass throttle valve, said line branching off from the exhaust gas line at a branch upstream of the turbine and branching back into the exhaust gas line at an opening downstream of the turbine.
    Type: Application
    Filed: February 28, 2019
    Publication date: May 13, 2021
    Inventors: Philipp KREUTZIGER, Michael FISCHER, Jaroslaw KIERAT
  • Publication number: 20200408141
    Abstract: The disclosure relates to an exhaust gas conduction system for a gasoline engine, comprising an exhaust gas line which can be connected to an exhaust manifold of the gasoline engine, an intake line which can be connected to an intake manifold of the gasoline engine, a charge air compressor which is arranged in the intake line, and a turbine which is arranged in the exhaust gas line. The exhaust gas line has at least one bypass line with a bypass throttle valve, said line branching off from the exhaust gas line upstream of the turbine and branching back into the exhaust gas line at an opening downstream of the turbine. At least one exhaust gas recirculation line with an EGR throttle valve is provided, said line opening into the intake line, wherein the exhaust gas recirculation line branches off from the bypass line at a branch, and the bypass throttle valve is arranged upstream of the branch of the exhaust gas recirculation line.
    Type: Application
    Filed: February 28, 2019
    Publication date: December 31, 2020
    Inventors: Philipp KREUTZIGER, Michael FISCHER, Jaroslaw KIERAT
  • Patent number: 10408228
    Abstract: A turbocharger (10) including variable turbine geometry has a turbine wheel (24) with a turbine axis of rotation (R1) that extends in an axial direction. The turbocharger (10) also has a plurality of guide vanes (34) that is selectively movable between a range of angular positions. Each one of the guide vanes (34) is supported for pivotal movement about a guide vane axis of rotation (R2) and each guide vane axis of rotation (R2) is non-parallel to the turbine axis of rotation (R1).
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: September 10, 2019
    Assignee: BorgWarner Inc.
    Inventors: David G. Grabowska, Jaroslaw Kierat, Olgierd Urbanczyk, Andrzej Mazurek
  • Patent number: 9745861
    Abstract: An exhaust-gas turbocharger (1) having a turbine (2) which has a turbine wheel (3) surrounded by an inflow duct (4), and having a VTG cartridge (5), which VTG cartridge has a disk and a vane bearing ring (7) which delimit the inflow duct, and which VTG cartridge has a multiplicity of vanes (6) which are arranged in the inflow duct (4) and which are mounted in the vane bearing ring (7) by way of rotatable vane shafts (9), which vane shafts are connected to vane levers (10), the lever heads (11) of which engage into associated grooves (12) in an adjusting ring (13). The adjusting ring (13) is guided by at least one bearing (8) which is arranged on one of the vane shafts (9).
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: August 29, 2017
    Assignee: BorgWarner Inc.
    Inventor: Jaroslaw Kierat
  • Patent number: 9488185
    Abstract: An exhaust gas turbocharger (1) with a compressor (2) which has a compressor wheel (3) arranged in a compressor housing (4); with a turbine (5) which has a turbine wheel (6) arranged in a turbine housing (7); and with a bearing housing (8) which is arranged between the compressor housing (4) and turbine housing (7); and which has a bearing (9) for a rotor shaft (10) which bears the turbine wheel (6) and the compressor wheel (3), wherein the bearing (9) has at least one ceramic insert (11, 12) which is on the bearing housing side and is under compressive prestress, and at least one ceramic insert (11, 12) which is on the motor shaft side and is under tensile prestress.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: November 8, 2016
    Assignee: BorgWarner Inc.
    Inventor: Jaroslaw Kierat
  • Patent number: 9488133
    Abstract: An exhaust-gas turbocharger (1) having a compressor (2); a turbine (5) which has a turbine wheel (6) with a radial flow region (11) and a semi-axial flow region (12) and which has a turbine housing (7) which has a spiral arrangement (9), surrounding the turbine wheel (6) at its outer circumference (8), for supplied exhaust gas; and a guide grate (10) for supplying exhaust gas to the turbine wheel (6). The guide grate (10) has a guide ring (13), which is axially movable in the charger axial direction (L) and is assigned to the radial flow region (11), and a closure sleeve (14), which is axially movable in the charger axial direction (L) and which is assigned to the semi-axial flow region (12).
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: November 8, 2016
    Assignee: BorgWarner Inc.
    Inventor: Jaroslaw Kierat
  • Publication number: 20150300246
    Abstract: An exhaust-gas turbocharger (1) having a turbine (2) which has a turbine wheel (3) surrounded by an inflow duct (4), and having a VTG cartridge (5), which VTG cartridge has a disk and a vane bearing ring (7) which delimit the inflow duct, and which VTG cartridge has a multiplicity of vanes (6) which are arranged in the inflow duct (4) and which are mounted in the vane bearing ring (7) by way of rotatable vane shafts (9), which vane shafts are connected to vane levers (10), the lever heads (11) of which engage into associated grooves (12) in an adjusting ring (13). The , wherein the adjusting ring (13) is guided by means of at least one bearing (8) which is arranged on one of the vane shafts (9).
    Type: Application
    Filed: November 7, 2013
    Publication date: October 22, 2015
    Inventor: Jaroslaw KIERAT
  • Patent number: 9145825
    Abstract: In an actuating structure for a valve, in particular for a waste gate of an exhaust gas turbocharger, comprising a lever element and a valve closure element which is movably supported by the lever element and has a sealing surface for sealing a valve opening wherein the lever element and the valve element cooperate via respective contact areas, which are curved at least with respect to a plane perpendicular to the axial direction of the valve, the curved contact areas are arranged concentrically with each other and have a common center of curvature which is arranged at least essentially at the level of the sealing surface of the valve closure element.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: September 29, 2015
    Assignee: IHI CHARGING SYSTEMS INTERNATIONAL GMBH
    Inventors: Jaroslaw Kierat, Hermann Burmester, Christian Winter
  • Patent number: 9022729
    Abstract: In an adjusting device for a charger device, in particular an exhaust gas turbocharger, with a holding ring on which a plurality of guide vanes is mounted in an operative connection with an actuating ring via a respective connecting element and whose respective angle of attack is adjustable by rotation of the actuating ring, the respective connecting elements are in an operative connection with the actuating element via at least one effective area which extends slant to the axial direction of the adjusting device so as to bias the connecting elements and the guide vanes associated therewith in a predetermined axial direction.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: May 5, 2015
    Assignee: IHI Charging Systems International GmbH
    Inventor: Jaroslaw Kierat
  • Publication number: 20150016968
    Abstract: A turbocharger (10) including variable turbine geometry has a turbine wheel (24) with a turbine axis of rotation (R1) that extends in an axial direction. The turbocharger (10) also has a plurality of guide vanes (34) that is selectively movable between a range of angular positions. Each one of the guide vanes (34) is supported for pivotal movement about a guide vane axis of rotation (R2) and each guide vane axis of rotation (R2) is non-parallel to the turbine axis of rotation (R1).
    Type: Application
    Filed: January 28, 2013
    Publication date: January 15, 2015
    Inventors: David G. Grabowska, Jaroslaw Kierat, Olgierd Urbanczyk, Andrzej Mazurek
  • Publication number: 20130323041
    Abstract: An exhaust-gas turbocharger (1) having a compressor (2); a turbine (5) which has a turbine wheel (6) with a radial flow region (11) and a semi-axial flow region (12) and which has a turbine housing (7) which has a spiral arrangement (9), surrounding the turbine wheel (6) at its outer circumference (8), for supplied exhaust gas; and a guide grate (10) for supplying exhaust gas to the turbine wheel (6). The guide grate (10) has a guide ring (13), which is axially movable in the charger axial direction (L) and is assigned to the radial flow region (11), and a closure sleeve (14), which is axially movable in the charger axial direction (L) and which is assigned to the semi-axial flow region (12).
    Type: Application
    Filed: November 18, 2011
    Publication date: December 5, 2013
    Applicant: BORGWARNER INC.
    Inventor: Jaroslaw Kierat
  • Publication number: 20130266425
    Abstract: An exhaust gas turbocharger (1) with a compressor (2) which has a compressor wheel (3) arranged in a compressor housing (4); with a turbine (5) which has a turbine wheel (6) arranged in a turbine housing (7); and with a bearing housing (8) which is arranged between the compressor housing (4) and turbine housing (7); and which has a bearing (9) for a rotor shaft (10) which bears the turbine wheel (6) and the compressor wheel (3), wherein the bearing (9) has at least one ceramic insert (11, 12) which is on the bearing housing side and is under compressive prestress, and at least one ceramic insert (11, 12) which is on the motor shaft side and is under tensile prestress.
    Type: Application
    Filed: November 23, 2011
    Publication date: October 10, 2013
    Applicant: BorgWarner Inc.
    Inventor: Jaroslaw Kierat
  • Publication number: 20120292547
    Abstract: In an actuating structure for a valve, in particular for a waste gate of an exhaust gas turbocharger, comprising a lever element and a valve closure element which is movably supported by the lever element and has a sealing surface for sealing a valve opening wherein the lever element and the valve element cooperate via respective contact areas, which are curved at least with respect to a plane perpendicular to the axial direction of the valve, the curved contact areas are arranged concentrically with each other and have a common center of curvature which is arranged at least essentially at the level of the sealing surface of the valve closure element.
    Type: Application
    Filed: August 2, 2012
    Publication date: November 22, 2012
    Inventors: Jaroslaw Kierat, Hermann Burmester, Christian Winter
  • Publication number: 20120243973
    Abstract: In an adjusting device for a charger device, in particular an exhaust gas turbocharger, with a holding ring on which a plurality of guide vanes is mounted in an operative connection with an actuating ring via a respective connecting element and whose respective angle of attack is adjustable by rotation of the actuating ring, the respective connecting elements are in an operative connection with the actuating element via at least one effective area which extends slant to the axial direction of the adjusting device so as to bias the connecting elements and the guide vanes associated therewith in a predetermined axial direction.
    Type: Application
    Filed: June 5, 2012
    Publication date: September 27, 2012
    Inventor: Jaroslaw KIERAT