Patent
Diesel exhaust aftertreatment device regeneration system
David L. Hilden,Chris C. Crellin +1 more
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TLDR
In this article, a diesel exhaust aftertreatment device regeneration system includes an exhaust conduit adapted to conduct exhaust gas to an exhaust gas after treatment device, and a low pressure bottom feed fuel injector having an inlet portion fully received within a chamber of an adaptor housing having a lower portion attached to the exhaust conduit.Abstract:
A diesel exhaust aftertreatment device regeneration system includes an exhaust conduit adapted to conduct exhaust gas to an exhaust gas aftertreatment device. The system further includes a low pressure bottom feed fuel injector having an inlet portion fully received within a chamber of an adaptor housing having a lower portion attached to the exhaust conduit. The housing is provided with fuel flow openings to allow low pressure fuel to circulate around and cool the fuel injector inlet portion within the chamber. Fuel injected into the exhaust conduit is preferably targeted toward a vaporization member, within the exhaust conduit, operative to absorb heat from the exhaust gas and vaporize fuel deposited thereon. A plurality of inwardly extending mixing baffles within the exhaust conduit intermediate the vaporization member and the aftertreatment device extend the mixing path to improve fuel vaporization for assisting regeneration of the device.read more
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Patent
Method for mixing an exhaust gas flow
Günther Palmer,Daniel R. Tomczak +1 more
TL;DR: In this article, a mixing element is coupled to a housing and includes a deflection element as well as a plurality of correction fins protruding at an angle from the deflection elements, and a second mixing element interconnects the first and second sidewalls and extends substantially parallel to the first mixing element.
Patent
Method of dispensing fuel into transient flow of an exhaust system
Xhixin Jason Hou,Wayne M. Wagner,Wenzhong Zhang,Edward A. Steinbrueck,Theodore G. Angelo,Ted J. Wiegandt,Mike D. Anderson +6 more
TL;DR: In this article, a mathematical model representative of the exhaust system is used to determine, based on operating conditions of an exhaust system, a rate of fuel delivery suitable for achieving a desired result.
Patent
Method and apparatus for posttreatment of an exhaust gas from an internal combustion engine
TL;DR: In this paper, a method of and an apparatus for posttreatment of an exhaust gas from an internal combustion engine, in which a substance to be mixed with the exhaust gas is sprayed in metered quantities into an exhaust manifold, through which the exhaust gases flows, is presented.
Patent
Particulate trap regeneration system and control strategy
Steven J. Funke,Jason K. Bloms,Andrew A. Knitt,Chandini M. Peoria Ammineni,Michael P. Withrow +4 more
TL;DR: In this article, a particulate trap regeneration system is described, which can remove one or more types of particulate matter from an exhaust flow of an engine and also include a regeneration device.
Patent
Method and device pertaining to cooling of dosing units of scr systems
TL;DR: In this article, a method pertaining to SCR systems for exhaust cleaning, comprising the steps of deciding about a need, after cessation of an exhaust flow, to cool a reducing agent dosing unit (250), which forms part of the SCR system, by means of reducing agent supplied to it, and of predicting a temperature pattern of said Dosing Unit (250) as a basis for deciding about said need, and predicting accordingly whether a predetermined temperature of the dosing Unit(250) will be reached after said cessation of exhaust flow.
References
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Patent
Expanded grid static mixer
TL;DR: In this paper, a static mixer in the exhaust emission control system of an excess-air-operated combustion engine is formed of an expanded grid with a plurality of openings formed between crossbars.
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TL;DR: In this article, the authors provided a black smoke eliminating device with a baffle member and a space portion to equalize the volume quantities and temperatures of exhaust gas flows flowing into these devices.
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TL;DR: A fluid-cooled mount for an injector, suitable for mounting an automotive fuel injector on a combustion exhaust system to inject an NOx reducing fluid into the exhaust system, was proposed in this paper.
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Exhaust emission control system for the exhaust gas of a diesel engine
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