Purem Gmbh

Fatih Uysal

Enver Kurpejovic

Dietmar Kuschel

Sandra Hoeckel

Sandra Höckel

Holger Prommersberger

Jürgen Häberle

Jochen Hammer

Krishna Kumar Vempati

Holger Brenner

Oleksandr Semenov

Vijaya Bhaskar Solipuram

Florian Friedrich

Fabian Frobenius

Dietmar Uebele

Klaus Tüber

An exhaust-gas heater for an exhaust-gas system of an internal combustion engine includes a carrier arrangement and a heating-conductor arrangement, which is carried on the carrier arrangement, and which has at least one heating conductor. The carrier arrangement includes an annular first carrier element, which surrounds an exhaust-gas-heater longitudinal axis, and a plurality of second carrier elements, which are formed separately from the first carrier element and are connected to the first carrier element in a first connecting region and to a coupling region of the heating-conductor arrangement in a second connecting region.

Exhaust-gas heater

An exhaust gas heater for an exhaust gas system of an internal combustion engine includes a carrier arrangement through which exhaust gas can flow in the direction of an exhaust gas heater longitudinal axis. The exhaust gas heater includes at least one heating conductor supported on the carrier arrangement. The at least one heating conductor is made with bent flat material for the provision of a heating conductor profile which is meandering at least in regions thereof. The heating conductor flat end faces are opposite one another and the heating conductor broad sides are opposite one another.

Exhaust gas heater

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.

Heating conductor for an exhaust gas heating arrangement

An exhaust gas heater for an exhaust gas system of an internal combustion engine includes a carrier arrangement and a heating conductor arrangement. The heating conductor arrangement is carried on the carrier arrangement and exhaust gas can flow therethrough in a main exhaust gas flow direction. The heating conductor arrangement includes at least two heating conductors arranged following one another in the main exhaust gas flow direction. The carrier arrangement includes at least one carrier element having a fixing region lying radially on the outside relative to an exhaust gas heater center axis and is configured for fixing to an exhaust gas guidance housing. The fixing region at least partially does not radially overlap a radially outer lying conductor region of at least one heating conductor of the heating conductor arrangement in at least one, preferably several circumferential regions.

An exhaust gas heater for an exhaust gas system of an internal combustion engine includes a carrier arrangement, a heating conductor arrangement which is supported on the carrier arrangement and has at least one current-carrying heating conductor, and a connecting arrangement for the fixed connection of the heating conductor arrangement to the carrier arrangement. The heating conductor arrangement is supported on the carrier arrangement in an electrically insulated manner via the connecting arrangement. The connecting arrangement includes a plurality of connecting elements, the heating conductor arrangement being supported on at least one connecting element via an insulating carrier unit in an electrically insulated manner with regard to the at least one connecting element.

Exhaust gas heater and method for making the same

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.

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

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

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.

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.

Connection unit for an exhaust gas heater

An exhaust gas heater, for an internal combustion engine exhaust system, includes a support () with an outer circumferential area (), arranged radially outside in relation to a heater longitudinal axis (A), and a central area (). A heating conductor () is carried at the support and includes a helically wound heating section () on a first axial side () 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 () 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.

A mixer for an exhaust system of an internal combustion engine includes a mixer housing () with an inflow opening central axis (LE) and with an outflow opening (). A first flow duct () following the inflow opening () in the mixer housing () and a second flow duct () lead parallel to one another to a third flow duct () and open into same. The third flow duct () leads to the outflow opening (). The first flow duct () and the second flow duct () are provided between an outer wall () of the mixer housing () and a flow divider wall () enclosed by the outer wall (), and the third flow duct () is enclosed by the flow divider wall ().

Mixer

A mixer is provided for mixing exhaust gas (A) flowing in an exhaust gas-carrying duct () of an internal combustion engine with reactant injected into the exhaust gas-carrying duct (). The mixer includes a mixing body () with a reactant-receiving duct (), an exhaust gas inlet opening device () with a plurality of exhaust gas inlet openings () leading to the reactant-receiving duct (), and at least one releasing duct () leading away from the reactant-receiving duct () with a releasing duct opening () for releasing a reactant/exhaust gas mixture from the mixer body (). An electrically energizable heater () is provided at the mixer body ().

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Plochingen, Germany

Fatih Uysal