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公开(公告)号：US11725568B2
公开(公告)日：2023-08-15
申请号：US16952778
申请日：2020-11-19
申请人： Purem GmbH
发明人： Benjamin Röhr , Elke Preisser
IPC分类号： F01N13/18
CPC分类号： F01N13/1838 , F01N13/1805 , F01N2450/20 , F01N2450/22
摘要： A connection unit for connecting two exhaust gas-carrying assembly units of an exhaust system of an internal combustion engine, includes a ring washer-shape connection element (26) with a connection side (42), which is to be positioned to face a counter-connection element (24) to be connected to the connection element (26) or/and in contact with the counter-connection element (24). A passage opening (28), bordered by an inner circumferential surface (36) of the connection element (26), receives a connection pipe (30), which is inserted into the passage opening (28) and extends in the direction of a pipe longitudinal axis (L). The connection pipe (30) is connected to the connection element (26) in the area of the inner circumferential surface (36) by welding, or/and the connection pipe (30) projects with a centering section (40) on the connection side (42) of the connection element (26).
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公开(公告)号：US11702974B2
公开(公告)日：2023-07-18
申请号：US17723125
申请日：2022-04-18
申请人： Purem GmbH
发明人： Peter Kast , Heike Többen , Philipp Weinmann , Oleksander Vyelyayev , Tobias Wolf , Mathias Rothfuss
CPC分类号： F01N3/2892 , F01N3/035 , F01N3/2066 , F01N2240/20 , F01N2250/02 , F01N2260/06 , F01N2610/02 , F01N2610/1453
摘要： 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.
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公开(公告)号：US20230137839A1
公开(公告)日：2023-05-04
申请号：US18050823
申请日：2022-10-28
申请人： Purem GmbH
发明人： Holger Brenner
摘要： A terminal pin, in particular for a terminal unit for the electrical contacting of a heating conductor of an exhaust-gas heater of an exhaust-gas system of an internal combustion engine, includes a pin body which is elongate in the direction of a pin body longitudinal axis and which has an outer connection region for the connection of a voltage supply line to the terminal pin, a cooling region, a leadthrough region for the electrically insulated leadthrough of the pin body through a pin support of a terminal unit, and an inner connection region for the connection of the terminal pin to a heating conductor of an exhaust-gas heater, a cooling surface formation being provided in the cooling region.
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公开(公告)号：US20230136357A1
公开(公告)日：2023-05-04
申请号：US18050830
申请日：2022-10-28
申请人： Purem GmbH
发明人： Gerd Gaiser
摘要： A heating unit for an exhaust-gas system of an internal combustion engine includes a heating-unit housing for conducting an exhaust-gas in a main flow direction. A plurality of heating elements are arranged in the heating-unit housing and are shaped in a meandering manner. Each heating element has a plurality of plate-like heating sections which follow one another in a heating-element longitudinal direction. The heating sections of each heating element are connected to one another via respective connecting sections. Each heating element has two connection regions which are arranged at a distance from one another. In each connection region, the heating elements are electrically conductively connected to a connection region of a further heating element.
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公开(公告)号：US11603803B2
公开(公告)日：2023-03-14
申请号：US17579394
申请日：2022-01-19
申请人： Purem GmbH
发明人： Matthias Grün , Markus Birgler , Markus Lory , Andreas Wacker , Annika Zeumer , Ralph Schenk , Miljenko Novosel
摘要： A coupling arrangement is disclosed for the rotational coupling of a drive element of a pivoting drive of an exhaust-gas flap for the exhaust-gas flow of a combustion engine to a pivot shaft rotatable about a pivot axis. A first coupling element has a coupling region coupled to a pivot shaft for rotation about the pivot axis. A preload element generates a force acting on the first coupling element and the second coupling element in a peripheral direction with respect to one another and generates a force acting in an axial direction between the coupling elements. One of the coupling elements includes two radially outwardly extending rotational coupling projections and the other coupling element includes a rotational coupling cutout receiving the projection. The one coupling element is held axially on the other coupling element by the preload element to prevent the projections from moving out of the cutouts.
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公开(公告)号：US20230067903A1
公开(公告)日：2023-03-02
申请号：US17822482
申请日：2022-08-26
申请人： Purem GmbH
发明人： Jürgen Häberle , Arnulf Spieth
摘要： An exhaust gas heater for an exhaust gas system of an internal combustion engine includes a carrier arrangement, a heating-conductor arrangement, carried on the carrier arrangement and having at least one heating conductor through which a current flows with at least one heating conductor being carried in an electrically insulated manner with respect to the carrier arrangement by at least one carrier-arrangement supporting unit and/or with at least one heating conductor being carried in an electrically insulated manner with respect to a further heating conductor by at least one heating-conductor supporting unit. A connecting arrangement securely connects the heating-conductor arrangement to the carrier arrangement and also a length-compensating arrangement for compensating for different thermal expansions of components of the exhaust gas heater.
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公开(公告)号：US20230067074A1
公开(公告)日：2023-03-02
申请号：US17893927
申请日：2022-08-23
申请人： Purem GmbH
发明人： Jochen Hammer , Holger Brenner
IPC分类号： F01N3/20
摘要： A connection unit for connecting an electrical supply line to an exhaust gas heater of an exhaust system of an internal combustion engine includes an electrically conductive connection element. The connection element has a heater connection region in a first end region and a supply line connection region in a second end region. A carrier has a receiving opening, wherein the connection element is arranged and has a support region. A first insulating element is arranged in the opening and surrounds the support region. A second insulating element is arranged on a first end face of the carrier. The connection element is supported with respect to the first end face via the second insulating element. A third insulating element is arranged on a second end face of the carrier. The connection element is supported with respect to this second end face via the third insulating element.
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公开(公告)号：US20230063358A1
公开(公告)日：2023-03-02
申请号：US17900036
申请日：2022-08-31
申请人： Purem GmbH
IPC分类号： F01N3/20
摘要： An exhaust system for an internal combustion engine includes an exhaust gas heater housing, an exhaust gas heater disposed in the exhaust gas heater housing and an exhaust gas treatment unit housing which, via an upstream end region, adjoins a downstream end region of the exhaust gas heater housing. At least one exhaust gas treatment unit is disposed in the exhaust gas treatment unit housing. At least one exhaust gas heater includes at least one connector element that, in the downstream direction toward the exhaust gas treatment unit housing, extends toward the exhaust gas heater and, in an exhaust gas primary flow direction, overlaps with the upstream end region of the exhaust gas treatment unit housing and/or with an exhaust gas treatment unit disposed in the upstream end region of the exhaust gas treatment unit housing.
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公开(公告)号：US20230060816A1
公开(公告)日：2023-03-02
申请号：US17822491
申请日：2022-08-26
申请人： Purem GmbH
发明人： Jochen Hammer
摘要： An exhaust gas heater for an exhaust gas system of an internal combustion engine includes a carrier arrangement and a heating conductor arrangement carried on the carrier arrangement. The heating conductor arrangement has at least one heating conductor. At least one carrier-arrangement supporting unit is provided for carrying the heating conductor in an electrically insulated manner with respect to the carrier arrangement. The carrier-arrangement supporting unit includes at least one of the following: an insulating coating applied to the carrier arrangement; and, an insulating coating applied to the heating conductor supported on the carrier arrangement via the carrier-arrangement supporting unit.
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公开(公告)号：US11578632B2
公开(公告)日：2023-02-14
申请号：US17469332
申请日：2021-09-08
申请人： Purem GmbH
发明人： Sandra Hoeckel , Fatih Uysal
摘要： An exhaust gas heater for an exhaust gas system of a combustion engine includes a carrier and at least one heating conductor through which a current flows. The heating conductor is mounted on the carrier. The heating conductor is provided via separation from a metal flat material blank. A method of making an exhaust gas heater includes a step of separating the heating conductor from the metal flat material blank.
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