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1. WO2019059942 - ACOUSTIC VOLUME IN HOT-END OF EXHAUST SYSTEMS

Publication Number WO/2019/059942
Publication Date 28.03.2019
International Application No. PCT/US2017/053186
International Filing Date 25.09.2017
IPC
F01N 1/02 2006.01
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 2010.01
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 1/02
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 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 1/089
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
08by reducing exhaust energy by throttling or whirling
089using two or more expansion chambers in series
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 13/0097
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
009having two or more separate purifying devices arranged in series
0097the purifying devices are arranged in a single housing
Applicants
  • FAURECIA EMISSIONS CONTROL TECHNOLOGIES, USA, LLC [US]/[US]
Inventors
  • LAGIER, Jean
  • EGAN, James
  • LARBI, Djafar
  • GONZALEZ, Marion
  • BLANCO-SOTELO, Frederic
Agents
  • LABA, Kerrie A.
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(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.
Also published as
Latest bibliographic data on file with the International Bureau