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Reductant

Reductant-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Use of gas turbine heated fluid for reductant vaporization
General Electric Company
October 12, 2017 - N°20170292424

A system includes a gas turbine engine that may combust a fuel to generate power and an exhaust gas, an exhaust gas path in fluid communication with the gas turbine engine and that may receive the exhaust gas from the gas turbine engine, and a reductant skid fluidly coupled to the exhaust gas path. The reductant skid includes an injection ...
Emission control system and reductant injector
Ford Global Technologies, Llc
October 12, 2017 - N°20170292422

An emission control system for an engine is described herein. The emission control system includes a reductant injector extending into an exhaust conduit upstream of a catalyst, the reductant injector including a reductant passage receiving reductant from a reductant reservoir and a first exhaust gas inlet receiving exhaust gas from the exhaust conduit, a boundary of the first exhaust gas ...
Biological fuel cell and methods
Abbott Diabetes Care Inc.
September 28, 2017 - N°20170279146

A fuel cell has an anode and a cathode with anode enzyme disposed on the anode and cathode enzyme is disposed on the cathode. The anode is configured and arranged to electrooxidize an anode reductant in the presence of the anode enzyme. Likewise, the cathode is configured and arranged to electroreduce a cathode oxidant in the presence of the cathode ...
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Method of forming silver nanoparticles and a use thereof
King Abdulaziz University
September 14, 2017 - N°20170259341

A method of reducing silver(i) salts to silver nanoparticles employing a carbohydrate reductant in the presence of an inorganic base, a surfactant and optionally a polymer. The method is performed in an aqueous solution at a temperature up to 60° c. And for a duration of up to 40 minutes.
Backscatter reductant anamorphic beam sampler
Tintometer, Gmbh
August 31, 2017 - N°20170248795

Embodiments of the present invention include a backscatter reductant anamorphic beam sampler. The beam sampler can be implemented to measure a power of a reference beam generated by an electromagnetic radiation source in proportion to a power of a working beam. The beam sampler can provide astigmatic correction to a divergence of the working beam along one axis orthogonal to ...
Self-tuning circuit for controlling input pressure values for an aftertreatment system
Cummins Emission Solutions Inc.
August 24, 2017 - N°20170241314

A controller including a self-tuning circuit for controlling a pressure system to output an input pressure corresponding to an input pressure value using an adaptive fuzzy control system and updating dosing command values of a dosing command table for controlling a dosing unit of an aftertreatment system. The self-tuning circuit is configured to determine an input pressure value and generate ...
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Virtual reductant level sensor
Cummins Emission Solutions Inc.
August 17, 2017 - N°20170234200

An aftertreatment system comprises a reductant storage tank and a scr system fluidly coupled thereto. A reductant physical level sensor and a tank temperature sensor are operatively coupled to the reductant storage tank. A controller is communicatively coupled with each of the sensors and configured to: interpret a first level output value from the physical level sensor and a first ...
Method and apparatus for controlling an internal combustion engine coupled to an exhaust aftertreatment system
Gm Global Technology Operations Llc
August 17, 2017 - N°20170234199

An internal combustion engine fluidly coupled to an exhaust aftertreatment system includes a particulate filter device, a first selective catalytic reduction device disposed upstream relative to a second selective catalytic reduction device, and an injection system disposed to inject a reductant into the exhaust gas feedstream upstream relative to the first selective catalytic reduction device. A method for controlling the ...
Scr after-treatment of engine exhaust gas
International Engine Intellectual Property Company , Llc
August 17, 2017 - N°20170234189

Reductant is metered into an engine exhaust gas after-treatment system upstream of an scr catalyst at engine exhaust gas temperatures both less than and greater than a def dosing threshold temperature to render the catalyst effective in reducing nox without creating undesired reaction products which would impair effectiveness of the after-treatment system at engine exhaust gas temperatures less than the ...
Scr after-treatment of engine exhaust gas
International Engine Intellectual Property Company , Llc
August 17, 2017 - N°20170234188

Reductant is metered into an engine exhaust gas after-treatment system upstream of an scr catalyst at engine exhaust gas temperatures both less than and greater than a def dosing threshold temperature to render the catalyst effective in reducing nox without creating undesired reaction products which would impair effectiveness of the after-treatment system at engine exhaust gas temperatures less than the ...
System and method for exhaust treatment
General Electric Company
August 17, 2017 - N°20170234184

According to various embodiments, an exhaust treatment system includes a catalyst that is in direct contact with an exhaust stream, at least one sensor that senses a system parameter and produces one or more signals corresponding to the system parameter, and a controller that is configured to receive the one or more signals and control catalyst performance based on the ...
Reductant tank as a heat storage device
Ford Global Technologies, Llc
August 10, 2017 - N°20170226904

A method for operating an engine system is provided. The method includes during a first operating condition, flowing oil from an oil sump to a heat exchanger attached to a reductant tank and transferring heat from oil flowing through the heat exchanger to reductant stored in the reductant tank. The method further includes during a second operating condition, flowing oil ...
System and method for purging reductant in a reductant dosing system
Caterpillar Inc.
August 03, 2017 - N°20170218819

A reductant supply system includes a pump having a suction side and a discharge side, and a tank that holds a reductant therein. A reductant supply passageway extends from the tank to the suction side of the pump so as to supply the reductant from the tank to the pump. Further, a reductant discharge passageway extends from the discharge side ...
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Synthesis of nanoparticles using ethanol
Brookhaven Science Associates, Llc
July 06, 2017 - N°20170194654

The present disclosure relates to methods for producing nanoparticles. The nanoparticles may be made using ethanol as the solvent and the reductant to fabricate noble-metal nanoparticles with a narrow particle size distributions, and to coat a thin metal shell on other metal cores. With or without carbon supports, particle size is controlled by fine-tuning the reduction power of ethanol, by ...
Orifice plate flow path stabilizer
Continental Automotive Systems, Inc.
July 06, 2017 - N°20170191400

An orifice plate for an injector is provided, which includes a base portion disposed along a base plane. An offset portion is unitarily formed with the base portion. The offset portion is at least partially disposed outside of the base plane. The offset portion defines a flow entry side and a flow exit side, and the offset portion defines a ...
Reductant apportionment for multi-dosing architectures
Cummins Emission Solutions Inc.
July 06, 2017 - N°20170191393

A system for apportioning reductant dosing amounts in multi-doser architectures includes an engine, an aftertreatment system in fluid communication with the engine, and a controller. The aftertreatment system includes a first doser configured to dose reductant into a first decomposition reaction member and a second doser configured to dose reductant into a second decomposition reaction member. The controller receives engine ...
Filter system and filtration method for fluid reservoirs
Caterpillar Inc.
July 06, 2017 - N°20170189837

A fluid reservoir for accommodating a fluid reductant used in an scr exhaust treatment process may include various styles or designs of bag filters to filter debris and contaminants from the reductant prior to being channeled out of the reservoir. To secure the bag filter to a header assembly accommodating the various inlet and outlet tubes, in one aspect, the ...
Method for smelting magnesium quickly and continuously
Northeastern University
June 29, 2017 - N°20170183760

A method for smelting magnesium quickly and continuously includes: preparing dolomite or magnesite with reductants and fluorite at a predetermined ratio, uniformly mixing the prepared ingredients to obtain pellets, and calcining the obtained pellets in an argon or nitrogen atmosphere; continuously feeding the high-temperature calcined pellets (without being cooled) under argon protection into a reduction furnace, and performing a high-temperature ...
Emissions control network for hybrid power plants
General Electric Company
June 22, 2017 - N°20170175610

A system, includes an emissions reduction system, including a catalyst system comprising an oxidation catalyst assembly and a selective catalytic reduction catalyst assembly. The system includes a diesel particulate fuel assembly, a first and a second sensor upstream of the catalyst system configured to measure emissions of the exhaust flow of the gas engine and a gas turbine before flowing ...
Systems and techniques for nozzle cooling of diesel exhaust fluid injection systems
Cummins Emission Solutions Inc.
June 22, 2017 - N°20170175608

A system is provided for delivery of diesel exhaust fluid or other reductant to an injector for release into an engine exhaust aftertreatment system. The injector includes a nozzle assembly that thermally shields the diesel exhaust fluid from the exhaust gas temperatures. A diesel exhaust fluid delivery procedure is also disclosed for nozzle cooling prior to operation of the injector ...
Methods and systems for introducing reductant into an exhaust passage
Ford Global Technologies, Llc
June 22, 2017 - N°20170175607

Methods and systems are provided for an exhaust passage having a plurality of catalysts. In one example, a method may include injecting reductant via one or more injectors of the exhaust passage and monitoring injection conditions by flowing exhaust gas to the engine.
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