(19)
(11) EP 4 158 163 A1

(12)

(43) Date of publication:
05.04.2023 Bulletin 2023/14

(21) Application number: 21734497.7

(22) Date of filing: 28.05.2021
(51) International Patent Classification (IPC): 
F01N 1/04(2006.01)
F01N 1/24(2006.01)
 F01N 1/10(2006.01)
F01N 13/18(2010.01)
(52) Cooperative Patent Classification (CPC):
F01N 1/04; F01N 1/10; F01N 1/24; F01N 2310/02; F01N 13/18
(86) International application number:
PCT/IB2021/054706
(87) International publication number:
WO 2021/240466 (02.12.2021 Gazette 2021/48)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 28.05.2020 IT 202000012727

(71) Applicant: So.La.Is. - Societa' Lavorazione Isolanti - S.r.l. Con Unico Socio
31020 Refrontolo (TV) (IT)

(72) Inventor:
  • ZARA, Michele
    31020 Refrontolo (TV) (IT)

(74) Representative: Studio Torta S.p.A. 
Via Viotti, 9
10121 Torino
10121 Torino (IT)

   


(54) METHOD FOR PRODUCING A FIBER MUFFLER INSERT FOR AN INTERNAL COMBUSTION ENGINE OF MOTOR-VEHICLES