Exhaust system for an internal combustion engine and process for manufacturing an exhaust system

    公开(公告)号:US11566557B2

    公开(公告)日:2023-01-31

    申请号:US17088202

    申请日:2020-11-03

    申请人: Purem GmbH

    IPC分类号: F01N13/18

    摘要: An exhaust system for an internal combustion engine includes an exhaust gas-carrying component (16) with an outer wall (14), a heat conductor element (12) with a jacket (40) and with a heat conductor device (50) enclosed by the jacket (40). A pass-through device (22) provides a gastight passing of the heat conductor element (12) through the outer wall (14) of the exhaust gas-carrying component (16). The pass-through device (22) includes a pass-through opening (26) in the outer wall (14), which pass-through opening (26) is traversed by the heat conductor element (12), and a connection element (24), which is connected in a gastight manner to the heat conductor element (12), on the one hand, and to the outer wall (14), on the other hand.

    Exhaust gas heater
    2.
    发明授权

    公开(公告)号:US11492942B2

    公开(公告)日:2022-11-08

    申请号:US17237610

    申请日:2021-04-22

    申请人: Purem GmbH

    IPC分类号: F01N3/20

    摘要: An exhaust gas heater for an exhaust gas system of a combustion engine includes a carrier and a heating conductor supported on the carrier. The heating conductor includes a heating region arranged on an axial side of the carrier, wherein the heating conductor is electrically uninsulated in its heating region at least in part. A holding arrangement has at least one holding unit which holds the heating conductor on the carrier in its heating region. The holding unit includes at least one electrically conducting holding block which is in contact with the heating conductor in an electrically uninsulated region of the heating region. The holding block is electrically insulated with respect to the carrier.

    HEATING CONDUCTOR FOR AN EXHAUST GAS HEATING ARRANGEMENT

    公开(公告)号:US20220333517A1

    公开(公告)日:2022-10-20

    申请号:US17722067

    申请日:2022-04-15

    申请人: Purem GmbH

    IPC分类号: F01N3/20

    摘要: A heating conductor for an exhaust gas heating arrangement for an exhaust gas system for an internal combustion engine includes a plurality of heating conductor sections. At least one throughflow opening, preferably a plurality of throughflow openings through which exhaust gas can flow, is or are provided in at least one heating conductor section, preferably in a plurality of heating conductor sections or in each heating conductor section.

    MIXING SECTION FOR AN EXHAUST SYSTEM OF AN INTERNAL COMBUSTION ENGINE

    公开(公告)号:US20240200483A1

    公开(公告)日:2024-06-20

    申请号:US18543938

    申请日:2023-12-18

    申请人: Purem GmbH

    IPC分类号: F01N3/28 F01N3/20

    摘要: A mixing section is for an exhaust system of an internal combustion engine. The mixing section intermixes exhaust gas and reagent and includes a mixing-section housing, enclosing a mixing chamber with a housing base. At least one exhaust-gas inlet opening admits exhaust gas into the mixing chamber and is provided in the housing base. A reagent dispenser dispenses reagent into the mixing chamber substantially in a main dispensing direction. The mixing section also includes a reagent-receiving arrangement for receiving reagent dispensed into the mixing chamber and the reagent-receiving arrangement includes a plurality of reagent receivers succeeding one another in the main dispensing direction. Each reagent receiver defines a reagent-receiving area positioned facing toward the reagent dispenser.

    Connection unit for an exhaust gas heater

    公开(公告)号:US11486286B2

    公开(公告)日:2022-11-01

    申请号:US17241423

    申请日:2021-04-27

    申请人: Purem GmbH

    IPC分类号: F01N3/00 F01N3/20 F01N13/14

    摘要: A connection unit for an exhaust gas heater in an exhaust gas system of a combustion engine includes an electrically conducting connection element, elongated in the direction of a connection element longitudinal axis (L). The connection element has an inner connection region for connection to a heating conductor and an outer connection region for connection to an electrical supply. A carrier arrangement surrounds the connection element and an insulating arrangement insulates the connection element with respect to the carrier arrangement.

    Exhaust gas heater
    7.
    发明授权

    公开(公告)号:US11486285B2

    公开(公告)日:2022-11-01

    申请号:US16951816

    申请日:2020-11-18

    申请人: Purem GmbH

    IPC分类号: F01N3/20

    摘要: An exhaust gas heater, for an internal combustion engine exhaust system, includes a support (22) with an outer circumferential area (24), arranged radially outside in relation to a heater longitudinal axis (A), and a central area (26). A heating conductor (42) is carried at the support and includes a helically wound heating section (44) on a first axial side (34) of the support. The central area is axially offset in a direction of the first axial side of the support in relation to the outer circumferential area such that a radially outer end section of the heating section, which outer end section is located in the area of the outer circumferential area of the support, and a radially inner end section (48) of the heating section, which inner end section is located in the area of the central area of the support, are axially offset in relation to one another.