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1. (WO2017150513) EXHAUST GAS PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE

Pub. No.:    WO/2017/150513    International Application No.:    PCT/JP2017/007727
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Wed Mar 01 00:59:59 CET 2017
IPC: F01N 3/28
F01N 3/20
Applicants: ISUZU MOTORS LIMITED
いすゞ自動車株式会社
Inventors: KAWASHIMA Yukihiro
川島 幸博
Title: EXHAUST GAS PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE
Abstract:
This exhaust gas purification device 100 for an internal combustion engine 1 is provided with: an exhaust pipe 2; a post-treatment unit 3 which is provided with a plurality of catalysts 10 for purifying exhaust gas; a casing 4 in which the post-treatment unit 3 is accommodated; an inlet hole 46 which is provided in the casing 4, and through which an exhaust gas inlet pipe 31 of the post-treatment unit 3 is passed such that a gap S1 is provided therebetween; an outlet hole 47 through which an exhaust gas outlet pipe 32 of the post-treatment unit 3 is passed such that a gap S2 is provided therebetween; a heat-insulating material 5 provided on the inner peripheral surface of the casing 4; and heat-insulating seal members 6, 7 which are provided in the gaps S1, S2.