US 11,746,683 B2
Durable heating member for a vehicle exhaust gas purification device
Thomas Sommier, Belfort (FR); Matthieu Riverain, Bavans (FR); Nicolas Tur, Thonon les Bains (FR); Sébastien Hanauer, Le Haut Soultzbach (FR); and Vincent Lebourgeois, Audincourt (FR)
Assigned to FAURECIA SYSTEMES D'ECHAPPEMENT
Appl. No. 17/439,046
Filed by FAURECIA SYSTEMES D'ECHAPPEMENT, Nanterre (FR)
PCT Filed Mar. 19, 2020, PCT No. PCT/EP2020/057556
§ 371(c)(1), (2) Date Sep. 14, 2021,
PCT Pub. No. WO2020/188016, PCT Pub. Date Sep. 24, 2020.
Claims priority of application No. 19 02950 (FR), filed on Mar. 21, 2019.
Prior Publication US 2022/0154617 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F01N 3/20 (2006.01)
CPC F01N 3/2013 (2013.01) [F01N 2240/16 (2013.01); F01N 2240/20 (2013.01); F01N 2260/18 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A heating member for a vehicle exhaust gas purification device, adapted to be arranged opposite and at a distance from an upstream or downstream face of the vehicle exhaust gas purification device, wherein said heating member comprises:
an electrically conductive peripheral frame having an inner edge with a geometric centre, a central support arranged substantially at the geometric centre, and a perforated heating grid, centered on the geometric centre and extending from the central support to the electrically conductive peripheral frame, said perforated heating grid being formed of a plurality of elongate heating elements each having first and second ends opposite one another, the first end being linked to the electrically conductive peripheral frame and the second end being linked to the central support, each elongate heating element occupying a respective angular sector of the perforated heating grid and being arranged in zigzag manner within that angular sector so as to form a succession of strands connected by nodes and being linked by said nodes to the plurality of elongate heating elements occupying neighbouring angular sectors, and wherein the strands form concentric rings centered on the geometric center.