公开(公告)号：US11174776B2

公开(公告)日：2021-11-16

申请号：US15733992

申请日：2019-06-06

Applicant: FAURECIA SYSTEMES D'ECHAPPEMENT

Inventor： Jean François Perret ,  Catherine Guyard ,  Benoit Poutot ,  Thomas Brenckle

IPC: F01N3/28 ,  F01N13/14 ,  F01N13/00

Abstract: A purification component comprises at least one block for purifying exhaust gases, and a casing that defines a circulation channel for the exhaust gases extending along a longitudinal axis, and in which the purification block is housed. The casing comprises an inlet portion, an outlet portion, and a central portion arranged between the inlet portion and the outlet portion, and with the central portion surrounding the purification block. A thermal insulator covers the whole of the casing. The thermal insulator comprise a first part, having a first temperature resistance, arranged radially facing the purification block, and a second part, having a second temperature resistance greater than the first temperature resistance, covering at least the inlet portion of the casing.