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1. (WO2018102108) INLET DIFFUSER FOR EXHAUST AFTERTREATMENT SYSTEM
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Pub. No.: WO/2018/102108 International Application No.: PCT/US2017/061240
Publication Date: 07.06.2018 International Filing Date: 13.11.2017
IPC:
F01N 3/28 (2006.01) ,F01N 3/10 (2006.01) ,F01N 3/021 (2006.01) ,F01N 3/08 (2006.01) ,F01N 3/20 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
10
by thermal or catalytic conversion of noxious components of exhaust
24
characterised by constructional aspects of converting apparatus
28
Construction of catalytic reactors
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
10
by thermal or catalytic conversion of noxious components of exhaust
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02
for cooling, or for removing solid constituents of, exhaust
021
by means of filters
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
10
by thermal or catalytic conversion of noxious components of exhaust
18
characterised by methods of operation; Regulation
20
specially adapted for catalytic conversion
Applicants:
CATERPILLAR INC. [US/US]; 100 N.E. Adams Street Peoria, IL 61629-9510, US
Inventors:
GIREESH, Guru; US
JUJARE, Arvind; US
TRUBNIKOV, Tim, T.; US
Agent:
MARTEY, Cynthia-Clare; US
CARTER, Janda, M.; US
BECKMAN, William, A.; US
EARLE, Kevin, C.; US
ANYASO, Uchendu, O.; US
Priority Data:
15/366,13601.12.2016US
Title (EN) INLET DIFFUSER FOR EXHAUST AFTERTREATMENT SYSTEM
(FR) DIFFUSEUR D'ENTRÉE POUR SYSTÈME DE POST-TRAITEMENT DES GAZ D'ÉCHAPPEMENT
Abstract:
(EN) An exhaust aftertreatment system (22) includes a housing (36) including first and second axial ends (38, 40). An exhaust inlet (24) is disposed adjacent the first axial end. An exhaust outlet (32) is disposed adjacent the second axial end. A catalytic converter (28) is disposed between the first and second axial ends. A diffuser (26) is disposed inside the housing between the first axial end and the catalytic converter. The diffuser includes a shell (54) in communication with the exhaust inlet. The shell includes proximal and distal portions (68, 70) and a front side (56) facing the catalytic converter. The proximal and distal portions are substantially equal in frontal area. The proximal portion is adjacent the exhaust inlet and includes a first plurality of front side openings (78, 80) totaling a first open area and the distal portion includes a second plurality of front side openings (82) totaling a second open area. The first open area is about 1.8-2.2 times the second.
(FR) L'invention concerne un système de post-traitement des gaz d'échappement (22) comprenant un boîtier (36) comportant des première et seconde extrémités axiales (38, 40). Une entrée d'échappement (24) est disposée de manière adjacente à la première extrémité axiale. Une sortie d'échappement (32) est disposée de manière adjacente à la seconde extrémité axiale. Un convertisseur catalytique (28) est disposé entre les première et seconde extrémités axiales. Un diffuseur (26) est disposé à l'intérieur du boîtier entre la première extrémité axiale et le convertisseur catalytique. Le diffuseur comprend une coque (54) en communication avec l'entrée d'échappement. La coque comprend des parties proximale et distale (68, 70) et un côté avant (56) faisant face au convertisseur catalytique. Les parties proximale et distale sont sensiblement égales dans la zone frontale. La partie proximale est adjacente à l'entrée d'échappement et comprend une première pluralité d'ouvertures latérales avant (78, 80) totalisant une première zone ouverte et la partie distale comprenant une seconde pluralité d'ouvertures latérales avant (82) totalisant une seconde zone ouverte. La première zone ouverte est d'environ 1,8 à 2,2 fois la seconde.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)