US 12,345,190 B2
Support unit for supporting a heating conductor of an exhaust gas heater on a carrier structure
Holger Brenner, Stuttgart (DE)
Assigned to Purem GmbH, Neunkirchen (DE)
Filed by Purem GmbH, Neunkirchen (DE)
Filed on Dec. 1, 2023, as Appl. No. 18/526,867.
Claims priority of application No. 10 2022 131 967.9 (DE), filed on Dec. 2, 2022.
Prior Publication US 2024/0183298 A1, Jun. 6, 2024
Int. Cl. F01N 3/20 (2006.01); B01D 53/94 (2006.01); F01N 3/027 (2006.01); F01N 3/28 (2006.01)
CPC F01N 3/2026 (2013.01) [B01D 53/94 (2013.01); B01D 2258/01 (2013.01); B01D 2259/40088 (2013.01); B01D 2259/40096 (2013.01); F01N 3/0275 (2013.01); F01N 3/204 (2013.01); F01N 3/2839 (2013.01); F01N 2240/04 (2013.01); F01N 2510/02 (2013.01); F01N 2550/22 (2013.01); F01N 2610/107 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A support unit for supporting a heating conductor of an exhaust gas heater on a carrier structure, the support unit comprising:
a supporting sleeve extending in a direction of a longitudinal axis and surrounding the longitudinal axis;
a supporting pin having a sleeve connecting area extending in said supporting sleeve and an exhaust gas heater connecting area projecting beyond said supporting sleeve;
at least one of said supporting pin, at least in an area of said sleeve connecting area and said supporting sleeve, on an inner surface surrounding said sleeve connecting area of said supporting pin, being coated with an insulating material; and,
said sleeve connecting area being held in the supporting sleeve by a force fit, wherein said force fit is provided by thermal treatment of at least one of said supporting sleeve and said supporting pin before insertion of said sleeve connecting area into said supporting sleeve, wherein at least one of said supporting sleeve is heated and said supporting pin is cooled before insertion of said sleeve connecting area into said supporting sleeve.