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1. WO2020095259 - HYDROCARBON DOSING SYSTEM

Publication Number WO/2020/095259
Publication Date 14.05.2020
International Application No. PCT/IB2019/059609
International Filing Date 08.11.2019
IPC
F01N 3/28 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
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 3/36 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
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
36Arrangements for supply of additional fuel
Applicants
  • ROTEX AUTOMATION LIMITED [IN]/[IN]
Inventors
  • SHAH, Nirav
Agents
  • KHURANA & KHURANA, ADVOCATES & IP ATTORNEYS
Priority Data
20182104222009.11.2018IN
20182104909026.12.2018IN
20192104338824.10.2019IN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) HYDROCARBON DOSING SYSTEM
(FR) SYSTÈME DE DOSAGE D'HYDROCARBURES
Abstract
(EN)
The present disclosure relates to a hydrocarbon dosing system to control dosing of diesel fuel into an exhaust upstream of a vehicle's oxidation catalyst (VOC). The system 100 includes separate inlets (102,104) to allow inflow of a first fluid and the second fluid into the system, and an outlet 116. The first fluid configured to facilitate purging of the second fluid into the VOC through the outlet 116. The system 100 incorporates multiple valves (106, 108, 112) and pressure sensor 114 to control dosing and purging of the fluids. The system 100 provides an intrinsic non-return valve mechanism to restrict the flow of the first fluid into a fluid path of the second fluid, and vice versa. The system 100 provides intrinsic pressure relief mechanism for controlled release of pressure from system 100. The system 100 includes additional optional check valves 208 and filter screens 206 for redundancy purposes.
(FR)
La présente invention concerne un système de dosage d'hydrocarbures destiné à réguler le dosage d'un carburant diesel dans un échappement en amont d'un catalyseur d'oxydation de véhicule (COV). Le système (100) comprend des entrées séparées (102, 104) destinées à permettre l'entrée d'un premier fluide et du second fluide dans le système, et une sortie (116). Le premier fluide est conçu pour faciliter la purge du second fluide dans le COV à travers la sortie (116). Le système (100) intègre plusieurs vannes (106, 108, 112) et un capteur de pression (114) pour commander le dosage et la purge des fluides. Le système (100) fournit un mécanisme de clapet anti-retour intrinsèque destiné à restreindre l'écoulement du premier fluide dans un trajet de fluide du second fluide, et vice versa. Le système (100) fournit un mécanisme de relâchement de pression intrinsèque pour une libération contrôlée de pression à partir du système (100). Le système (100) comprend des clapets anti-retour facultatifs (208) et des tamis de filtrage (206) à des fins de redondance.
Also published as
EP2019839242
Latest bibliographic data on file with the International Bureau