Patents by Inventor Thomas Lischer
Thomas Lischer 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: 20200347850Abstract: The present invention relates to a flow-modifying device for a compressor of a charging apparatus. The flow-modifying device comprises a cylindrical housing portion, which defines an inner lateral surface and in the axial direction comprises a downstream end region and an upstream end region. The flow-modifying device furthermore comprises a plurality of pockets, which are arranged on the inner lateral surface, spaced-apart from one another in the peripheral direction. Each pocket is defined here by a longitudinal projection line and a depth projection line. In an orientation plane, which is formed by the longitudinal projection line and the depth projection line, there is arranged a downstream angle of entry ? of the pocket relative to the inner lateral surface and an upstream angle of entry ? of the pocket relative to the inner lateral surface. The downstream angle of entry ? defines a downstream opening region of the pocket and the upstream angle of entry ? defines an upstream opening region of the pocket.Type: ApplicationFiled: April 30, 2020Publication date: November 5, 2020Inventors: Tom HEUER, Sascha KARSTADT, Thomas LISCHER, Johannes BUEHLER, Sebastian LEICHTFUSS
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Patent number: 10119402Abstract: A compressor wheel (1) of a radial compressor (2) of an exhaust-gas turbocharger (3), having a hub (8); and having two blade rows (9, 10) which are arranged adjacent to one another on the hub (8), a first blade row (9) forming the leading blade row, and the adjacent, second blade row (10) forming the trailing blade row, wherein the number of blades (11) of the first blade row (9) is equal to the number of blades (12) of the second blade row (10).Type: GrantFiled: November 14, 2013Date of Patent: November 6, 2018Assignee: BorgWarner Inc.Inventors: Alessio Scheri, Aleksandra Dimova, Thomas Lischer, Henning Scheel
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Patent number: 10119411Abstract: An exhaust-gas turbocharger (1) comprising a housing (2), a turbine wheel (5) with blades (6), a compressor wheel (4) with blades (6), and a shaft (3) which is mounted in the housing (2) and which connects the turbine wheel (5) and compressor wheel (4), wherein, in a gap (7) between the housing (2) and at least one blade (6), a contactless labyrinth seal (8) is formed on the blade (6) and on the housing (2), wherein the labyrinth seal (8) comprises at least one combination of a groove (13) and a projection (14).Type: GrantFiled: June 20, 2013Date of Patent: November 6, 2018Assignee: BorgWarner Inc.Inventors: Aleksandra Dimova, Thomas Lischer
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Patent number: 9932896Abstract: The invention relates to an exhaust-gas turbocharger (1) having a compressor housing (3), having a bearing housing (28) which can be connected at one end to the compressor housing (3) by means of a first fastening device (19), and having a turbine housing (2) which can be connected to the bearing housing (28) at the other end of the latter by means of a second fastening device (20), with the compressor housing (3), the bearing housing (28) and the turbine housing (2) extending along an exhaust-gas turbocharger longitudinal axis (R), wherein the first fastening device (19) is designed as a plug-and-twist connecting device.Type: GrantFiled: December 3, 2010Date of Patent: April 3, 2018Assignee: BorgWarner Inc.Inventor: Thomas Lischer
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Patent number: 9896967Abstract: A turbocharger (1) in which the bearing-housing-side diffuser wall is thermally decoupled in order to reduce the heat introduction at the bearing housing cover (5). The turbocharger (1) includes a turbine (2), a compressor (3) which has a diffuser, and a bearing housing (4) which is arranged between the turbine (2) and the compressor (3) and which has the bearing housing cover (5). The bearing housing cover (5) is composed of a material with a low thermal conductivity of at most 5 W/mK, for example a temperature-resistant plastic.Type: GrantFiled: May 17, 2010Date of Patent: February 20, 2018Assignee: BorgWarner Inc.Inventor: Thomas Lischer
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Patent number: 9528527Abstract: A compressor (1) of an exhaust-gas turbocharger (ATL), having a compressor wheel (2) and a compressor housing (3) which has a housing longitudinal axis (A). The compressor wheel (2) is arranged in the housing. An inlet duct (5) runs from a compressor inlet (4) to the compressor wheel (2). A recirculation duct (6) has a compressor-wheel-side inflow opening (7) and a compressor-inlet-side return flow opening (8). The inflow opening (7) and the return flow opening (8) can be opened and closed.Type: GrantFiled: April 26, 2012Date of Patent: December 27, 2016Assignee: BorgWarner Inc.Inventors: Aleksandar Sekularac, Thomas Lischer
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Patent number: 9500119Abstract: The present invention relates to a turbocharger (1) for an internal combustion engine (2), having at least one low-pressure exhaust-gas recirculation line (3) which opens out via an exhaust-gas mixing-in opening (12) into an intake line (10) of the internal combustion engine (2); having a turbine (4) and having a compressor (5) which is drive-connected to the turbine (4) and which has a compressor wheel (6) which is arranged in a compressor housing (7) into which the intake line (10) opens out via a compressor inlet (11), and having a mixing device (18) for mixing recirculated exhaust gas (AG) and fresh air (FL), characterized in that the mixing device (18) has an inflow distributor (21) in which the exhaust-gas recirculation line (3), which extends at least substantially along the longitudinal axis (L) thereof, and the intake line (10), which extends at least substantially at right angles to the longitudinal axis (L), open out, and in that, as viewed in the flow direction (R) of the exhaust gases (AG), an imType: GrantFiled: February 1, 2011Date of Patent: November 22, 2016Assignee: BorgWarner Inc.Inventor: Thomas Lischer
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Patent number: 9482239Abstract: A compressor housing of an exhaust-gas turbocharger is formed as a pressure-die-cast housing to achieve cost reduction in relation to permanent-mold-cast housings. Since it is not possible in a pressure-die-cast housing to realize round transitions of the spiral in the direction of the housing rear side because this would prevent removal from a mold, the bearing-housing-side diffuser wall is formed as a separate component.Type: GrantFiled: December 3, 2010Date of Patent: November 1, 2016Assignee: BorgWarner Inc.Inventor: Thomas Lischer
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Patent number: 9181854Abstract: The present invention relates to a turbocharger (1) for an internal combustion engine (2) having at least one exhaust-gas recirculation line (3) which enters via an exhaust-gas mixing-in opening (12) into an intake line (10) of the internal combustion engine (2); having a turbine (4); and having a compressor (5); which is drive-connected to the turbine (4) and which has a compressor wheel (6) which is arranged in a compressor housing (7) into which the intake line (10) opens via a compressor inlet (11), having a mixing device (18) for mixing recirculated exhaust gas and fresh air, with the mixing device (18) having at least two guide plates (21, 22) in the shape of truncated cone shell segments which are arranged radially offset with respect to one another and which delimit in each case one inflow gap (23, 24) at their longitudinal edges arranged offset with respect to one another.Type: GrantFiled: February 23, 2010Date of Patent: November 10, 2015Assignee: BorgWarner Inc.Inventor: Thomas Lischer
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Publication number: 20150292333Abstract: A compressor wheel (1) of a radial compressor (2) of an exhaust-gas turbocharger (3), having a hub (8); and having two blade rows (9, 10) which are arranged adjacent to one another on the hub (8), a first blade row (9) forming the leading blade row, and the adjacent, second blade row (10) foaming the trailing blade row, wherein the number of blades (11) of the first blade row (9) is equal to the number of blades (12) of the second blade row (10).Type: ApplicationFiled: November 14, 2013Publication date: October 15, 2015Inventors: Alessio Scheri, Aleksandra Dimova, Thomas Lischer, Henning Scheel
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Publication number: 20150176422Abstract: An exhaust-gas turbocharger (1) comprising a housing (2), a turbine wheel (5) with blades (6), a compressor wheel (4) with blades (6), and a shaft (3) which is mounted in the housing (2) and which connects the turbine wheel (5) and compressor wheel (4), wherein, in a gap (7) between the housing (2) and at least one blade (6), a contactless labyrinth seal (8) is formed on the blade (6) and on the housing (2), wherein the labyrinth seal (8) comprises at least one combination of a groove (13) and a projection (14).Type: ApplicationFiled: June 20, 2013Publication date: June 25, 2015Inventors: Aleksandra Dimova, Thomas Lischer
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Patent number: 8944771Abstract: Turbochargers operate at extremely high speed, so balance of the rotating core is of the utmost importance to turbocharger life. A special frusto-conical, or frusto-spherical, centering geometry is added to the interface of the compressor nut and the nose of the compressor wheel to aid in keeping the wheel, nut, and stub-shaft centered on the turbocharger axis to reduce the degree of core unbalance.Type: GrantFiled: March 19, 2010Date of Patent: February 3, 2015Assignee: BorgWarner Inc.Inventors: Thomas Lischer, Denny King
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Publication number: 20140093354Abstract: A compressor (1) of an exhaust-gas turbocharger (ATL), having a compressor wheel (2) and a compressor housing (3) which has a housing longitudinal axis (A). The compressor wheel (2) is arranged in the housing. An inlet duct (5) runs from a compressor inlet (4) to the compressor wheel (2). A recirculation duct (6) has a compressor-wheel-side inflow opening (7) and a compressor-inlet-side return flow opening (8). The inflow opening (7) and the return flow opening (8) can be opened and closed.Type: ApplicationFiled: April 26, 2012Publication date: April 3, 2014Applicant: BorgWarner Inc.Inventors: Aleksandar Sekularac, Thomas Lischer
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Publication number: 20120328422Abstract: The invention relates to an exhaust-gas turbocharger (1) having a compressor housing (3), having a bearing housing (28) which can be connected at one end to the compressor housing (3) by means of a first fastening device (19), and having a turbine housing (2) which can be connected to the bearing housing (28) at the other end of the latter by means of a second fastening device (20), with the compressor housing (3), the bearing housing (28) and the turbine housing (2) extending along an exhaust-gas turbocharger longitudinal axis (R), wherein the first fastening device (19) is designed as a plug-and-twist connecting device.Type: ApplicationFiled: December 3, 2010Publication date: December 27, 2012Applicant: BORGWARNER INC.Inventor: Thomas Lischer
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Publication number: 20120297768Abstract: The present invention relates to a turbocharger (1) for an internal combustion engine (2), having at least one low-pressure exhaust-gas recirculation line (3) which opens out via an exhaust-gas mixing-in opening (12) into an intake line (10) of the internal combustion engine (2); having a turbine (4) and having a compressor (5) which is drive-connected to the turbine (4) and which has a compressor wheel (6) which is arranged in a compressor housing (7) into which the intake line (10) opens out via a compressor inlet (11), and having a mixing device (18) for mixing recirculated exhaust gas (AG) and fresh air (FL), characterized in that the mixing device (18) has an inflow distributor (21) in which the exhaust-gas recirculation line (3), which extends at least substantially along the longitudinal axis (L) thereof, and the intake line (10), which extends at least substantially at right angles to the longitudinal axis (L), open out, and in that, as viewed in the flow direction (R) of the exhaust gases (AG), an imType: ApplicationFiled: February 1, 2011Publication date: November 29, 2012Applicant: BORGWARNER INC.Inventor: Thomas Lischer
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Publication number: 20120269659Abstract: The invention relates to an exhaust-gas turbocharger (1) having a turbine (2), and having a compressor (3) which has a compressor housing (10), said compressor housing (10) being fastened to a bearing housing (4) and having a compressor spiral (13) and a bearing-housing-side diffuser wall (14), wherein the compressor housing (10) is formed as a pressure-die-cast housing, and the diffuser wall (14) is formed as a separate component which can be connected to the compressor housing (10) and which has an internal rounding (16) in the transition region to the inner wall of the compressor housing spiral (13).Type: ApplicationFiled: December 3, 2010Publication date: October 25, 2012Applicant: BorgWarner Inc.Inventor: Thomas Lischer
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Publication number: 20120057975Abstract: The invention relates to a turbocharger (1) in which the bearing-housing-side diffuser wall is thermally decoupled in order to reduce the heat introduction at the bearing housing cover (5). The turbocharger (1) comprises a turbine (2), a compressor (3) which has a diffuser, and a bearing housing (4) which is arranged between the turbine (2) and the compressor (3) and which has the bearing housing cover (5). Said bearing housing cover (5) is composed of a material with a low thermal conductivity of at most 5 W/mK, for example a temperature-resistant plastic.Type: ApplicationFiled: May 17, 2010Publication date: March 8, 2012Applicant: BORGWARNER INC.Inventor: Thomas Lischer
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Publication number: 20120023930Abstract: The present invention relates to a turbocharger (1) for an internal combustion engine (2) having at least one exhaust-gas recirculation line (3) which enters via an exhaust-gas mixing-in opening (12) into an intake line (10) of the internal combustion engine (2); having a turbine (4); and having a compressor (5); which is drive-connected to the turbine (4) and which has a compressor wheel (6) which is arranged in a compressor housing (7) into which the intake line (10) opens via a compressor inlet (11), having a mixing device (18) for mixing recirculated exhaust gas and fresh air, with the mixing device (18) having at least two guide plates (21, 22) in the shape of truncated cone shell segments which are arranged radially offset with respect to one another and which delimit in each case one inflow gap (23, 24) at their longitudinal edges arranged offset with respect to one another.Type: ApplicationFiled: February 23, 2010Publication date: February 2, 2012Applicant: Borg Warner Inc.Inventor: Thomas Lischer
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Publication number: 20120003093Abstract: Turbochargers operate at extremely high speed, so balance of the rotating core is of the utmost importance to turbocharger life. A special frusto-conical, or frusto-spherical, centering geometry is added to the interface of the compressor nut and the nose of the compressor wheel to aid in keeping the wheel, nut, and stub-shaft centered on the turbocharger axis to reduce the degree of core unbalance.Type: ApplicationFiled: March 19, 2010Publication date: January 5, 2012Applicant: BORGWARNER INC.Inventors: Thomas Lischer, Denny King