Patents by Inventor Peter Kast
Peter Kast 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: 11702974Abstract: An exhaust gas/reactant mixing arrangement for an exhaust system of an internal combustion engine mixes exhaust gas and reactant. The mixing arrangement includes an exhaust gas guide housing defining a longitudinal axis and having a housing wall. An exhaust gas duct is surrounded by the housing wall and exhaust gas can flow therethrough. A mixing zone has a mixing chamber formed between an upstream end wall and a downstream end wall and a reactant dispensing arrangement is supported on the exhaust gas guide housing. The reactant dispensing arrangement dispenses reactant into the mixing chamber along a reactant dispensing line in a dispensing direction. A mixture flow path leads from an inflow opening to an outflow opening and is formed in the mixing chamber. The mixture flow path has two flow deflection regions, which follow one another in a mixture flow direction and have mutually opposite flow deflection directions.Type: GrantFiled: April 18, 2022Date of Patent: July 18, 2023Assignee: Purem GmbHInventors: Peter Kast, Heike Többen, Philipp Weinmann, Oleksander Vyelyayev, Tobias Wolf, Mathias Rothfuss
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Publication number: 20230160327Abstract: An exhaust gas treatment assembly for an exhaust system of an internal combustion engine includes a housing having a circumferential wall and at least one base wall which in an external circumferential region is connected to the circumferential wall. In a housing interior space, which is defined by the circumferential wall and the base wall, at least one exhaust gas treatment unit is positioned so as to be removable from the housing. At least one base wall is an interchangeable base wall which is releasably connected to the circumferential wall via a connection assembly. The connection assembly includes a first connection portion, a first axial support portion, and on the base wall includes a second connection portion which via at least one connection member is releasably connected to the first connection portion and a second axial support portion is supported on the first axial support portion.Type: ApplicationFiled: November 18, 2022Publication date: May 25, 2023Inventors: Gregor Krüger, Matthias Kauer, Frank Glaser, Kirill Karelin, Shengxiao Lin, Peter Kast
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Patent number: 11585256Abstract: An exhaust gas/reactant mixing arrangement is for an exhaust system of an internal combustion engine for mixing exhaust gas and reactant. The mixing arrangement includes an exhaust gas guide housing extending in the direction of a housing longitudinal axis and a housing wall. The housing wall surrounds and defines an exhaust gas duct accommodating a flow of exhaust gas. A mixing zone is formed between an upstream end wall and a downstream end wall arranged downstream of the upstream end wall. The mixing zone includes a first chamber and a second chamber as well as a reactant dispensing unit carried on the exhaust gas guide housing for dispensing reactant into the first chamber in a reactant main dispensing direction oriented substantially along a reactant dispensing line.Type: GrantFiled: March 9, 2022Date of Patent: February 21, 2023Assignee: Purem GmbHInventor: Peter Kast
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Patent number: 11536179Abstract: An exhaust gas treatment assembly unit for an exhaust system of an internal combustion engine includes a tubular outer housing (12) elongated in a direction of an outer housing longitudinal axis (LA), a tubular inner housing (14) elongated in the direction of an inner housing longitudinal axis (LI), an exhaust gas treatment unit (16) being carried in the inner housing (14), and a locking fixing device (24) detachably fixing the inner housing in the outer housing. The locking fixing device (24) includes a locking fixing element (26) held at the inner housing (14) in both axial directions with a radially outwards prestressed locking meshing area (28). In association with the locking meshing area (28), a locking receiving area (42) at the outer housing (12), interacts with the locking meshing area (28) for holding the inner housing (14) in the outer housing (12) in at least one axial direction.Type: GrantFiled: August 6, 2020Date of Patent: December 27, 2022Assignee: PUREM GMBHInventors: Wolfgang Datz, Markus Henzler, Peter Kast
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Publication number: 20220333521Abstract: An exhaust gas/reactant mixing arrangement for an exhaust system of an internal combustion engine mixes exhaust gas and reactant. The mixing arrangement includes an exhaust gas guide housing defining a longitudinal axis and having a housing wall. An exhaust gas duct is surrounded by the housing wall and exhaust gas can flow therethrough. A mixing zone has a mixing chamber formed between an upstream end wall and a downstream end wall and a reactant dispensing arrangement is supported on the exhaust gas guide housing. The reactant dispensing arrangement dispenses reactant into the mixing chamber along a reactant dispensing line in a dispensing direction. A mixture flow path leads from an inflow opening to an outflow opening and is formed in the mixing chamber. The mixture flow path has two flow deflection regions, which follow one another in a mixture flow direction and have mutually opposite flow deflection directions.Type: ApplicationFiled: April 18, 2022Publication date: October 20, 2022Inventors: Peter Kast, Heike Többen, Philipp Weinmann, Oleksander Vyelyayev, Tobias Wolf, Mathias Rothfuss
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Publication number: 20220290601Abstract: An exhaust gas/reactant mixing arrangement is for an exhaust system of an internal combustion engine for mixing exhaust gas and reactant. The mixing arrangement includes an exhaust gas guide housing extending in the direction of a housing longitudinal axis and a housing wall. The housing wall surrounds and defines an exhaust gas duct accommodating a flow of exhaust gas. A mixing zone is formed between an upstream end wall and a downstream end wall arranged downstream of the upstream end wall. The mixing zone includes a first chamber and a second chamber as well as a reactant dispensing unit carried on the exhaust gas guide housing for dispensing reactant into the first chamber in a reactant main dispensing direction oriented substantially along a reactant dispensing line.Type: ApplicationFiled: March 9, 2022Publication date: September 15, 2022Inventor: Peter Kast
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Patent number: 11441470Abstract: An internal combustion engine exhaust system mixer device includes a bottom element (12) includes a downstream rear side (22) and a front side (44). The bottom element has a reactant introduction opening (31), open to a reactant receiving volume (46), and expands therefrom radially from the reactant introduction opening toward the front side. Exhaust gas passage ducts (58), arranged following one another in the circumferential direction about the opening axis (A), open to the reactant receiving volume. A swirl generation element (20) is connected to the bottom element and encloses the opening axis. A mixing volume (64) adjoins the reactant receiving volume in the direction of the opening axis and is formed in the swirl generation element. A plurality of exhaust gas passage openings (66), following one another in the circumferential direction, about the opening axis are provided in the swirl generation element.Type: GrantFiled: September 29, 2020Date of Patent: September 13, 2022Assignee: Purem GmbHInventors: Peter Kast, Michael Dentler, Vincent Eder, Mathias Rothfuss
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Patent number: 11268432Abstract: An internal combustion engine exhaust system includes an exhaust gas treatment unit carried at a carrier. The carrier has a receiving opening (20), receiving the treatment unit, with a first sealing surface (28) enclosing the opening. The exhaust gas treatment unit has a second sealing surface (42), enclosing a treatment unit longitudinal axis, located opposite the first sealing surface. The exhaust gas treatment unit has a third sealing surface (44), enclosing the treatment unit longitudinal axis. A closing element (48), fixable with the exhaust gas treatment unit to the carrier, has a fourth sealing surface (50), located opposite the third sealing surface. A first sealing element (52) is arranged between the first sealing surface and the second sealing surface. A second sealing element (54) is arranged between the third sealing surface and the fourth sealing surface. The first sealing element and the second sealing element are of identical configuration.Type: GrantFiled: January 6, 2021Date of Patent: March 8, 2022Assignee: PUREM GMBHInventors: Peter Kast, Michael Dentler, Vincent Eder, Oliver Karabateas, Felix Neumann
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Publication number: 20210215087Abstract: An internal combustion engine exhaust system includes an exhaust gas treatment unit carried at a carrier. The carrier has a receiving opening (20), receiving the treatment unit, with a first sealing surface (28) enclosing the opening. The exhaust gas treatment unit has a second sealing surface (42), enclosing a treatment unit longitudinal axis, located opposite the first sealing surface. The exhaust gas treatment unit has a third sealing surface (44), enclosing the treatment unit longitudinal axis. A closing element (48), fixable with the exhaust gas treatment unit to the carrier, has a fourth sealing surface (50), located opposite the third sealing surface. A first sealing element (52) is arranged between the first sealing surface and the second sealing surface. A second sealing element (54) is arranged between the third sealing surface and the fourth sealing surface. The first sealing element and the second sealing element are of identical configuration.Type: ApplicationFiled: January 6, 2021Publication date: July 15, 2021Inventors: Peter KAST, Michael DENTLER, Vincent EDER, Oliver KARABATEAS, Felix NEUMANN
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Publication number: 20210115829Abstract: An internal combustion engine exhaust system mixer device includes a bottom element (1) includes a downstream rear side (22) and a front side (44). The bottom element has a reactant introduction opening (31), open to a reactant receiving volume (46), and expands therefrom radially from the reactant introduction opening toward the front side. Exhaust gas passage ducts (58), arranged following one another in the circumferential direction about the opening axis (A), open to the reactant receiving volume. A swirl generation element (20) is connected to the bottom element and encloses the opening axis. A mixing volume (64) adjoins the reactant receiving volume in the direction of the opening axis and is formed in the swirl generation element. A plurality of exhaust gas passage openings (66), following one another in the circumferential direction, about the opening axis are provided in the swirl generation element.Type: ApplicationFiled: September 29, 2020Publication date: April 22, 2021Inventors: Peter KAST, Michael DENTLER, Vincent EDER, Mathias ROTHFUSS
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Publication number: 20210040874Abstract: An exhaust gas treatment assembly unit for an exhaust system of an internal combustion engine includes a tubular outer housing (12) elongated in a direction of an outer housing longitudinal axis (LA), a tubular inner housing (14) elongated in the direction of an inner housing longitudinal axis (LI), an exhaust gas treatment unit (16) being carried in the inner housing (14), and a locking fixing device (24) detachably fixing the inner housing in the outer housing. The locking fixing device (24) includes a locking fixing element (26) held at the inner housing (14) in both axial directions with a radially outwards prestressed locking meshing area (28). In association with the locking meshing area (28), a locking receiving area (42) at the outer housing (12), interacts with the locking meshing area (28) for holding the inner housing (14) in the outer housing (12) in at least one axial direction.Type: ApplicationFiled: August 6, 2020Publication date: February 11, 2021Inventors: Wolfgang DATZ, Markus HENZLER, Peter KAST
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Patent number: 10577997Abstract: An exhaust system for an internal combustion engine includes an exhaust gas flow duct (14), through which exhaust gas can flow in an exhaust gas main flow direction (A), and a reactant injection device (18) for injecting reactant in a reactant injection area (16) of the exhaust gas flow duct (14) in a reactant main injection direction (R). The reactant main injection direction (R) and the exhaust gas main flow direction (A) in the reactant injection area (16) are not parallel and not at right angles to one another.Type: GrantFiled: January 4, 2018Date of Patent: March 3, 2020Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Peter Kast, Tobias Wolf, Markus Henzler, Torsten Bucher
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Patent number: 10371038Abstract: A connection piece assembly unit, especially for an exhaust gas treatment device of an exhaust system of an internal combustion engine, includes a connection piece (30) with a base area (32) for fixing the connection piece (30) to a carrier assembly unit. A covering element (40) projects over an outside (42) of the connection piece (30).Type: GrantFiled: July 17, 2017Date of Patent: August 6, 2019Assignee: EBERSPÄCHER EXHAUST TECHNOLOGY GMBH & CO. KGInventors: Dan Liu, Peter Kast
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Patent number: 10113472Abstract: An exhaust gas treatment device, especially for an exhaust system of an internal combustion engine of a vehicle, includes a housing (12) elongated in a direction of a housing longitudinal axis (L). An exhaust gas treatment unit (18) is arranged in the housing (12). At least one first exhaust gas guiding device (24) is in flow connection with an axially open axial end area (16) of the housing (12). The first exhaust gas guiding device (24) provides a first flow path area (38) extending along an outer side (22) of the housing (12) as well as a second flow path area (47) connecting the first flow path area (38) with the axially open axial end area (16) of the housing (12).Type: GrantFiled: November 21, 2017Date of Patent: October 30, 2018Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Peter Kast, Jean Philippe Samnick, Charles Hossepied, Laurent Cazeneuve
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Publication number: 20180187586Abstract: An exhaust system for an internal combustion engine includes an exhaust gas flow duct (14), through which exhaust gas can flow in an exhaust gas main flow direction (A), and a reactant injection device (18) for injecting reactant in a reactant injection area (16) of the exhaust gas flow duct (14) in a reactant main injection direction (R). The reactant main injection direction (R) and the exhaust gas main flow direction (A) in the reactant injection area (16) are not parallel and not at right angles to one another.Type: ApplicationFiled: January 4, 2018Publication date: July 5, 2018Inventors: Peter KAST, Tobias WOLF, Markus HENZLER, Torsten BUCHER
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Publication number: 20180149069Abstract: An exhaust gas treatment device, especially for an exhaust system of an internal combustion engine of a vehicle, includes a housing (12) elongated in a direction of a housing longitudinal axis (L). An exhaust gas treatment unit (18) is arranged in the housing (12). At least one first exhaust gas guiding device (24) is in flow connection with an axially open axial end area (16) of the housing (12). The first exhaust gas guiding device (24) provides a first flow path area (38) extending along an outer side (22) of the housing (12) as well as a second flow path area (47) connecting the first flow path area (38) with the axially open axial end area (16) of the housing (12).Type: ApplicationFiled: November 21, 2017Publication date: May 31, 2018Inventors: Peter KAST, Jean Philippe SAMNICK, Charles HOSSEPIED, Laurent CAZENEUVE
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Patent number: 9938877Abstract: An arrangement (6) of a pipe (5) on a funnel (4) has a pipe interior space (8) fluidically connected with a funnel interior space (9). The funnel has an integral connection piece (10) with two axial openings (12) in the circumferential direction (11). A connecting sleeve (14), which has a clamping collar (15), which tapers towards the funnel and is formed integrally in one piece with the connecting sleeve (14), is attached to the connection piece on the outside thereof. The pipe is attached to the connection piece with an end section (16) facing the funnel. The end section has a counterclamping collar (17), which is formed integrally in one piece therewith and tapers away from the funnel. A clamp connection (7) has a clamp (18) with a ring-shaped connecting body (19) extending over the clamping collar (15) and the counterclamping collar (17) and prestresses these axially towards one another.Type: GrantFiled: February 25, 2015Date of Patent: April 10, 2018Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventor: Peter Kast
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Publication number: 20180023451Abstract: A connection piece assembly unit, especially for an exhaust gas treatment device of an exhaust system of an internal combustion engine, includes a connection piece (30) with a base area (32) for fixing the connection piece (30) to a carrier assembly unit. A covering element (40) projects over an outside (42) of the connection piece (30).Type: ApplicationFiled: July 17, 2017Publication date: January 25, 2018Inventors: Dan LIU, Peter KAST
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Patent number: 9650931Abstract: A method for manufacturing an exhaust gas treatment device (1), which has at least one ceramic substrate body (3, 4) for exhaust gas treatment in a tubular housing (2), includes inserting the substrate body (3) axially into the housing (2). An axial support (13), which has a supporting ring (14) and a ring-shaped support element (15) held by the supporting ring (14), is inserted axially into the housing (2) and is positioned therein such that the axial support (13) transmits a predetermined axial force (28) to the substrate body (3) via the support element (15). The axial support (13) is fixed to the housing (2) with the axially prestressed (predetermined axial force) positioning, in which the supporting ring (14) is welded to the housing (2).Type: GrantFiled: February 25, 2015Date of Patent: May 16, 2017Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventor: Peter Kast
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Publication number: 20150240684Abstract: A method for manufacturing an exhaust gas treatment device (1), which has at least one ceramic substrate body (3, 4) for exhaust gas treatment in a tubular housing (2), includes inserting the substrate body (3) axially into the housing (2). An axial support (13), which has a supporting ring (14) and a ring-shaped support element (15) held by the supporting ring (14), is inserted axially into the housing (2) and is positioned therein such that the axial support (13) transmits a predetermined axial force (28) to the substrate body (3) via the support element (15). The axial support (13) is fixed to the housing (2) with the axially prestressed (predetermined axial force) positioning, in which the supporting ring (14) is welded to the housing (2).Type: ApplicationFiled: February 25, 2015Publication date: August 27, 2015Inventor: Peter KAST