Systems and methods for reductant delivery in aftertreatment systems for internal combustion enignes

A dosing lance assembly 200 for an engine exhaust aftertreatment component, such as a selective catalytic reduction (SCR) device, includes a housing and a delivery conduit 226. The housing includes an aerofoil shaped pipe 220, a plate 210 having a first channel 214, and an endcap 222 having a second...

Full description

Saved in:
Bibliographic Details
Main Authors Colin L Norris, Ronald Hale, Ken Hummel, Tyler Kent Lorenz, Snehal Shivaji Yesumali, Thakar Raghunath
Format Patent
LanguageEnglish
Published 23.06.2021
Subjects
BLASTING
ENGINE PLANTS IN GENERAL
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
Online AccessGet full text

Cover

More Information
Summary:A dosing lance assembly 200 for an engine exhaust aftertreatment component, such as a selective catalytic reduction (SCR) device, includes a housing and a delivery conduit 226. The housing includes an aerofoil shaped pipe 220, a plate 210 having a first channel 214, and an endcap 222 having a second channel 229. The pipe and delivery conduit each have a first end 230 coupled to the plate and a second end 232 coupled to the endcap, such that reductant can flow through the delivery conduit from the first channel to the second channel. When the housing is at an ambient temperature a length of the delivery conduit is greater than a first distance between a location at which the first end of the pipe is coupled to the plate and a location at which the second end of the pipe is coupled to the endcap. The delivery conduit may include a single bend, multiple bends or a single helix.
Bibliography:Application Number: GB20200019534