Holder for an electric heating disk in an exhaust gas aftertreatment device

Patent metadata

Field	Value
Publication number	US-2022251991-A1
Application number	US-202217669041-A
Country	US
Kind code	A1
Filing date	Feb 10, 2022
Priority date	Feb 11, 2021
Publication date	Aug 11, 2022
Grant date	—

Abstract

An exhaust gas treatment device for arranging in an exhaust gas section of a motor vehicle that includes a heating disk which is assigned to an exhaust gas aftertreatment component. The heating disk is configured by way of a flat heating element and a holder which is coupled to the former. The holder extends over the cross-sectional area of the heating element, and the holder itself is of disk-shaped configuration. The inner face of the heating disk is configured by way of arcuate spokes which are coupled irregularly to one another.

First claim

1 - 11 . (canceled)

12 . An exhaust gas treatment device in an exhaust gas section of a vehicle, comprising:
a heating disk configured to heat an exhaust gas aftertreatment component, wherein the heating disk comprises a heating element, and a holder coupled to the heating element, the holder extends over a cross-sectional area of the heating element, the holder is disk-shaped, the holder comprises a lattice-like structure, and the lattice-like structure comprises a plurality of arcuate spokes coupled irregularly together.

13 . The exhaust gas treatment device according to claim 12 , wherein the holder comprises a metallic material.

14 . The exhaust gas treatment device according to claim 12 , wherein two adjacent spokes among the plurality of spokes have opposed arcuate shapes.

15 . The exhaust gas treatment device according to claim 12 , wherein each spoke of the plurality of spokes comprises at least one fastening point coupled to the heating element.

16 . The exhaust gas treatment device according to claim 12 , wherein the heating element is an electric heating element and comprises a honeycomb-like structure.

17 . The exhaust gas treatment device according to claim 12 , wherein the heating element comprises a corrugated foil material.

18 . The exhaust gas treatment device according to claim 12 , further comprising a spacer sleeve arranged between the heating element and the holder.

19 . The exhaust gas treatment device according to claim 12 , wherein the holder comprises two holders, which sandwich the heating element therebetween.

20 . The exhaust gas treatment device according to claim 18 , further comprising a pin, wherein the pin engages through the spacer sleeve and couples the holder to the heating element.

21 . The exhaust gas treatment device according to claim 20 , wherein the pin comprises two pins in the spacer sleeve, the two pins point toward one another in opposite directions, each of the two pins having a tip by which the two pins are coupled together.

22 . The exhaust gas treatment device according to claim 12 , wherein the holder comprises a peripheral portion configured to be coupled to a housing of the exhaust gas aftertreatment component, and the plurality of spokes are integrally connected to the peripheral portion and protrude inwardly in a radial direction from the peripheral portion.

23 . The exhaust gas treatment device according to claim 12 , wherein the exhaust gas aftertreatment component is a catalytic converter.

24 . The exhaust gas treatment device according to claim 12 , wherein the holder comprises a punched-out part or a cut-out part.

25 . The exhaust gas treatment device according to claim 12 , wherein each spoke of the plurality of spokes comprises at least two fastening points for coupling to the heating element.

26 . The exhaust gas treatment device according to claim 12 , wherein at least one spoke of the plurality of spokes comprises three or more fastening points for coupling to the heating element.

27 . The exhaust gas treatment device according to claim 12 , wherein the heating element comprises a perforated plate or wire mesh, the perforated plate or wire mesh being wound spirally.

28 . The exhaust gas treatment device according to claim 18 , wherein the spacer sleeve is ceramic.

29 . The exhaust gas treatment device according to claim 18 , wherein the spacer sleeve comprises a material that is electrically insulating and thermally resistant.

30 . The exhaust gas treatment device according to claim 12 , wherein the heating element is flat.

31 . The exhaust gas treatment device according to claim 20 , wherein the two pins are under tensile stress.

Assignees

• Benteler Automobiltechnik Gmbh

Inventors

• Grussmann Elmar
• Rusche Ulrich

Classifications

• F01N3/2013 Primary

  using electric or magnetic heating means · CPC title

• H05B2203/022

  Heaters specially adapted for heating gaseous material · CPC title

• H05B3/06

  Heater elements structurally combined with coupling elements or holders · CPC title

• F01N2900/1631

  Heat amount provided to exhaust apparatus · CPC title

• F01N2900/0602

  Electrical exhaust heater signals · CPC title