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1. WO2022005985 - AQUEOUS FLUID SYSTEM AND METHOD FOR CLEANING AND REMANUFACTURING OF AFTERTREATMENT SYSTEM COMPONENTS

Publication Number WO/2022/005985
Publication Date 06.01.2022
International Application No. PCT/US2021/039396
International Filing Date 28.06.2021
IPC
F01N 3/023 2006.1
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
023using means for regenerating the filters, e.g. by burning trapped particles
F01N 3/035 2006.1
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
033in combination with other devices
035with catalytic reactors
F01N 3/10 2006.1
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
B01D 29/62 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/-B01D27/170;   Filtering elements therefor
62Regenerating the filter material in the filter
Applicants
  • CUMMINS INC. [US]/[US]
Inventors
  • PERRY, Justin Wyatt
  • ALLOTEY, Richard Adotey
  • GARRISON, Lauren
  • WIELAND, Todd M.
  • VASQUEZ LOMBARDO, Rafael Ernesto
  • CHILUMUKURU, Krishna Pradeep
Agents
  • BROWN, Marshall J.
  • BRILL, Chase J.
  • RAWLINS, Andrew E.
Priority Data
63/046,37530.06.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) AQUEOUS FLUID SYSTEM AND METHOD FOR CLEANING AND REMANUFACTURING OF AFTERTREATMENT SYSTEM COMPONENTS
(FR) SYSTÈME DE FLUIDE AQUEUX ET PROCÉDÉ DE NETTOYAGE ET DE RÉUSINAGE D'ÉLÉMENTS DE SYSTÈME DE POST-TRAITEMENT
Abstract
(EN) A concentrated aqueous solution for cleaning a component of an aftertreatment system of an engine system includes an organic acid at a concentration between 25% and 50% mass per volume of the concentrated aqueous solution, and a biological growth inhibitor at a concentration between 0.1% and 1% mass per volume of the concentrated aqueous solution. The concentrated aqueous solution also includes a surface tension modifier at a concentration between 0.1% and 25% volume per volume of the concentrated aqueous solution, and a foam controlling agent at a concentration between 0.01% and 15% volume per volume of the concentrated aqueous solution.
(FR) Solution aqueuse concentrée destinée au nettoyage d'un élément d'un système de post-traitement d'un système moteur, ladite solution comprenant un acide organique à une concentration comprise entre 25 % et 50 % en masse par volume de la solution aqueuse concentrée, et un inhibiteur de croissance biologique à une concentration comprise entre 0,1 % et 1 % en masse par volume de la solution aqueuse concentrée. La solution aqueuse concentrée comprend également un modificateur de tension superficielle à une concentration comprise entre 0,1 % et 25 % en volume par volume de la solution aqueuse concentrée, et un agent de régulation de mousse à une concentration comprise entre 0,01 % et 15 % en volume par volume de la solution aqueuse concentrée.
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