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1. EP3688289 - ACOUSTIC VOLUME IN HOT-END OF EXHAUST SYSTEMS

Office European Patent Office
Application Number 17926019
Application Date 25.09.2017
Publication Number 3688289
Publication Date 05.08.2020
Publication Kind A1
IPC
F01N 1/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
1Silencing apparatus characterised by method of silencing
02by using resonance
F01N 13/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
13Exhaust or silencing apparatus characterised by constructional features
CPC
F01N 1/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
1Silencing apparatus characterised by method of silencing
F01N 1/023
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
1Silencing apparatus characterised by method of silencing
02by using resonance
023Helmholtz resonators
F01N 3/021
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
F01N 3/28
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08for rendering innocuous
10by thermal or catalytic conversion of noxious components of exhaust
24characterised by constructional aspects of converting apparatus
28Construction of catalytic reactors
F01N 13/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
13Exhaust or silencing apparatus characterised by constructional features ; ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
F01N 1/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
1Silencing apparatus characterised by method of silencing
02by using resonance
Applicants FAURECIA EMISSIONS CONTROL TECHNOLOGIES USA LLC
Inventors LAGIER JEAN
EGAN JAMES
LARBI DJAFAR
GONZALEZ MARION
BLANCO-SOTELO FREDERIC
Designated States
Priority Data 2017053186 25.09.2017 US
Title
(DE) AKUSTISCHES VOLUMEN IM HEISSEN ENDE VON ABGASANLAGEN
(EN) ACOUSTIC VOLUME IN HOT-END OF EXHAUST SYSTEMS
(FR) VOLUME ACOUSTIQUE AU NIVEAU DE L'EXTRÉMITÉ CHAUDE DE SYSTÈMES D'ÉCHAPPEMENT
Abstract
(EN)
A vehicle exhaust system includes a component housing defining an internal cavity, a first exhaust gas treatment element positioned within the internal cavity, a second exhaust gas treatment element positioned within the internal cavity and axially spaced from the first exhaust gas treatment element by a gap, and a resonator volume in communication with the internal cavity.

(FR)
Dans la présente invention, un système d'échappement de véhicule comprend un boîtier de composant définissant une cavité interne, un premier élément de traitement de gaz d'échappement positionné à l'intérieur de la cavité interne, un second élément de traitement de gaz d'échappement positionné à l'intérieur de la cavité interne et espacé axialement du premier élément de traitement de gaz d'échappement par un espace, et un volume de résonateur en communication avec la cavité interne.