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Reductant patents



      

This page is updated frequently with new Reductant-related patent applications.




Date/App# patent app List of recent Reductant-related patents
06/23/16
20160178804 
 Preparation methods and uses of doped vib group metal oxide nanoparticles or dispersions thereof patent thumbnailPreparation methods and uses of doped vib group metal oxide nanoparticles or dispersions thereof
The present invention is related to a method for preparing vib group metal oxide particles or dispersions, wherein the vib group metal is tungsten or molybdenum. The methods include: 1) providing precursors of vib group metal oxide, reductants and supercritical fluids.

06/23/16
20160177801 
 Exhaust system of an internal combustion engine with mixer for a liquid reductant patent thumbnailExhaust system of an internal combustion engine with mixer for a liquid reductant
An exhaust system for an internal combustion engine includes an injection nozzle for injecting a liquid reductant into exhaust gas streaming through the exhaust system. A mixer is arranged in the exhaust-gas stream for swirling and dispersing the liquid reductant in the exhaust-gas stream.

06/23/16
20160177799 
 Insulated reductant tank patent thumbnailInsulated reductant tank
An insulated reductant tank that is arranged so that it has an insulated upper portion and a tapered lower portion, the reductant tank configured to allow frozen reductant to move into the insulated upper portion and reduce the damage that frozen reductant can cause to a reductant tank when the frozen reductant expands. The insulated reductant tank can include at least one header configured to draw reductant from the reductant tank and supply the reductant to an exhaust aftertreatment system, an insulation layer lining an upper portion of the reductant tank, a tapered lower portion, and at least one baffle configured to control a flow of reductant..

06/23/16
20160177421 
 Technetium recovery from high alkaline solution patent thumbnailTechnetium recovery from high alkaline solution
Disclosed are methods for recovering technetium from a highly alkaline solution. The highly alkaline solution can be a liquid waste solution from a nuclear waste processing system.

06/23/16
20160175823 
 Catalyzed scr filter and emission treatment system patent thumbnailCatalyzed scr filter and emission treatment system
Provided is a catalyst article for simultaneously remediating the nitrogen oxides (nox), particulate matter, and gaseous hydrocarbons present in diesel engine exhaust streams. The catalyst article has a soot filter coated with a material effective in the selective catalytic reduction (scr) of nox by a reductant, e.g., ammonia..

06/23/16
20160175784 
 Mixing system for aftertreatment system patent thumbnailMixing system for aftertreatment system
A mixing system for an aftertreatment system is disclosed. The mixing system includes a mixing tube.

06/16/16
20160169074 
 Aftertreatment system implementing low-temperature scr patent thumbnailAftertreatment system implementing low-temperature scr
An aftertreatment system for an engine is disclosed. The aftertreatment system may include an exhaust passage configured to receive an exhaust flow from the engine, and an injector disposed in the exhaust passage and configured to inject reductant into the exhaust flow.
Caterpillar Inc.


06/09/16
20160160735 
 Exhaust elbow component with integrated mount patent thumbnailExhaust elbow component with integrated mount
An exhaust elbow component may be located upstream of a decomposition reactor pipe and/or may be integrated with decomposition reactor pipe. The exhaust elbow component includes a mounting area for mounting a dosing module to the exhaust elbow component.
Cummins Emission Solutions, Inc.


06/09/16
20160160728 
 Compact radial exterior exhaust assisted decomposition reactor pipe patent thumbnailCompact radial exterior exhaust assisted decomposition reactor pipe
Various embodiments provide for apparatuses and systems involving a reactor pipe configured to receive reductant from an injector into a flow of exhaust exiting an engine. The reactor pipe comprises an inlet portion, a plurality of louvers, an outlet portion, and a radial loop.
Cummins Emission Solutions, Inc.


06/09/16
20160160719 
 Multi-leg aftertreatment system patent thumbnailMulti-leg aftertreatment system
An apparatus is disclosed, including an exhaust conditions module structured to interpret a diesel particulate filter (dpf) delta pressure value, a flow balance correlation, a nox input value, and an exhaust flow rate value. A flow determination module is structured to determine a flow imbalance value in response to the dpf delta pressure value, the flow balance correlation, and the exhaust flow rate value.
Cummins Inc.


06/09/16
20160160469 

Reductant tank enclosure assembly for machines


A reductant tank enclosure assembly for a machine including a cab and a fender is provided. The enclosure assembly includes an enclosure, a cover assembly, a mounting assembly, and a reductant tank.
Caterpillar Inc.


06/02/16
20160152473 

Raw material of composite pellets used in kiln phosphoric acid process, and forming method therefor


Disclosed is a composite pellet used as a raw material in a kiln process for the production of phosphoric acid, which is of a core-shell structure with an inner ball encapsulated with a shell, the inner ball mainly consists of a inner ball material and a binding agent, and the shell mainly consists of a cladding material and a binding agent; the inner ball material mainly consists of a carbonaceous reductant powder, and phosphate ore powder and silica powder, the inner ball is combined with the shell through the binding agent to form the core-shell shaped structure. The preparation of the composite pellets comprises the steps of preparing the inner ball, preparing the cladding material, forming, drying and solidifying composite green pellets etc.
Sichuan Ko Chang Technology Co., Ltd


06/02/16
20160152472 

Method for mass production of phosphoric acid with rotary kiln


A method for mass production of phosphoric acid with a rotary kiln, comprising the following steps: pretreating raw materials a carbonaceous reductant; preparing the pre-treated carbonaceous reductant powder; then evenly mixing the carbonaceous reductant powder and the silica powder to obtain a cladding material; mixing the cores and the cladding material for cladding treatment, drying and solidifying same to obtain composite pellets; sending the composite pellets into a rotary kiln for a reduction reaction; sending the high-temperature slag balls exiting the rotary kiln to a cooling device for comprehensive utilisation; introducing the fume containing p2o5 and fluorine exiting the kiln into a hydration tower for absorbing phosphorus by hydration, then passing same through a phosphoric acid mist capturing tower and a mist removing and separating tower successively, and the fluorine-containing fume discharged from the mist removing and separating tower entering a subsequent fluorine recovery procedure.. .
Sichuan Ko Chang Technology Co., Ltd


05/26/16
20160146080 

Method and monitoring fluid reductant for internal combustion engine exhaust


A method and means of determining the quality of a fluid reductant used in selective catalytic reduction to reduce nox emissions from an internal combustion engine. Short and long term average of nox conversion efficiency are compared with thresholds, in order to determine if failure of selective catalytic reduction is due to incorrect reductant, or to failure of the catalyst device..
Jaguar Land Rover Limited


05/19/16
20160136376 

Method and generating nitric oxide for medical use


A method and system for generating and delivering nitric oxide directly to a patient. A reaction chamber is provided that is located at or in close proximity to the patient and reactants within the reaction chamber react together to produce a predetermined amount of nitric oxide.
Ino Therapeutics Llc


05/12/16
20160131010 

Apparatus, method, and system for diagnosing reductant deposits in an exhaust aftertreatment system


An exhaust gas treatment system for an internal combustion engine may have a reductant delivery system that delivers reductant to an exhaust stream in an exhaust aftertreatment system. A temperature sensor may be positioned in or near the flow of reductant and exhaust to measure the temperature of the reductant and exhaust.
Cummins Ip, Inc.


05/05/16
20160123201 

Compression ignition engine system with improved regeneration via controlled ash deposits


An engine system includes an electronically controlled compression ignition engine configured to burn diesel fuel and a high ash oil to produce an exhaust with a temperature and nox to soot ratio as well as a controlled level of ash deposits on the particulate filter of the system. An aftertreatment system is fluidly connected to the engine and includes a diesel oxidation catalyst, a reductant supply, and a diesel particulate filter coated with a nox reduction catalyst.
Caterpillar Inc.


05/05/16
20160121275 

Flow device for an exhaust system


A flow device for an exhaust system includes a body that defines an interior cavity. An exhaust inlet passage is disposed in the interior cavity.
Donaldson Company, Inc.


04/28/16
20160115838 

Systems and methods for managing diesel exhaust fluid stratification


A method for an exhaust system is provided, comprising adjusting reductant injection responsive to a reductant concentration, the reductant concentration based on concentration sensor readings and vehicle motion. If the reductant freezes, the reductant may stratify, leading to inaccurate concentration sensor readings.
Ford Global Technologies, Llc


04/21/16
20160108789 

Constant mass flow injection system


Exhaust aftertreatment assemblies and methods of manufacturing and operating exhaust aftertreatment assemblies. The exhaust aftertreatment assembly includes a reductant delivery device, a reductant source fluidly coupled to the reductant delivery device, a mixing chamber positioned between the reductant delivery device and the reductant source and thereby fluidly coupling the reductant source to the reductant delivery device, and a compressed air source fluidly coupled to the mixing chamber upstream of the mixing chamber with respect to the reductant delivery device.

03/31/16
20160091453 

Method for measuring hematocrit value of blood sample, measuring concentration of analyte in blood sample, sensor chip and sensor unit


Provided is a sensor chip for electrochemically measuring a concentration of an analyte in a blood sample. In one embodiment of the sensor, the sensor chip includes a substrate, and a preliminary measurement analyzer and a hematocrit value analyzer disposed on the substrate.
Panasonic Healthcare Holdings Co., Ltd.


03/31/16
20160090887 

Integrative reductant system and method using constant volume injection


Various embodiments relate to a selective catalytic reduction system for treating exhaust gases of an internal combustion engine. The system includes an inlet section that receives exhaust gases from the engine.
Cummins Emission Solutions, Inc.


03/24/16
20160084135 

Catalyst protection against hydrocarbon exposure


A system to protect an after treatment system from the effects of hydrocarbon accumulation on a catalyst. An engine system microprocessor using software estimates the amount of hydrocarbon accumulation on the after treatment system based on engine system parameters and other parameters.
Caterpillar Inc.


03/24/16
20160084131 

Systems and techniques for nozzle cooling of diesel exhaust fluid injection systems


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.
Cummins Emission Solutions Inc.


03/24/16
20160084129 

Liquid cooled reductant dosing unit


A liquid cooled reduction unit includes a diesel exhaust fluid (def) injection valve. The valve includes a housing that forms an elongated chamber therein.
Continental Automotive Systems, Inc.


03/24/16
20160083259 

Reductant storage


An assembly and method for storing a reductant, including ammonia, for use in the treatment of nox in an exhaust stream, is disclosed. The assembly comprises a cartridge having an interior space, a disk formed from compacted reductant adsorbing/desorbing material contained within a heat transfer material, and, an expandable element positioned within the interior space of the cartridge for receiving a plurality of disks within the interior space of the cartridge.
International Engine Intellectual Property Company, Llc


03/24/16
20160083255 

Raw material pre-treatment method and raw material pre-treatment process system suitable for kiln phosphoric acid process


Disclosed is a raw material pre-treatment process system suitable for a kiln phosphoric acid process, comprising a carbonaceous reductant, a phosphate ore and a silica pre-treatment system which are independent from one another, outlets of the carbonaceous reductant, phosphate ore pre-treatment system and silica pre-treatment system are all connected to an inner pellet material mixing device via a first delivery device, and outlets of the carbonaceous reductant and the silica pre-treatment system are both additionally connected to a shell material mixing device via a second delivery device. Also disclosed is a raw material pre-treatment process suitable for a kiln phosphoric acid process, i.e.
Sichuan Ko Chang Technology Co., Ltd


03/17/16
20160079591 

Siox/si/c composite material and process of producing thereof, and anode for lithium ion battery comprising said composite material


An siox/si/c composite material, includes siox/si composite particles and a carbon coating layer coated on the siox/si composite particles. The siox/si composite particles include nano-silicon crystallites embedded in an siox (0<x≦2) amorphous matrix phase.
Shanghai Jiaotong University


03/17/16
20160076424 

Coolant heating releasing reductant


A system and method for heating main unit containing host salt having ammonia that is used as reductant in an engine exhaust gas after-treatment system. Engine coolant is delivered from internal combustion engine to auxiliary heating device.
International Engine Intellectual Property Company, Llc


03/17/16
20160076420 

Ammonia generation system for an scr system


A system including a reductant source storing reductant, an ammonia generation system configured to generate gaseous ammonia via cavitation, and a gaseous ammonia delivery device in fluid communication with the ammonia generation system and an exhaust system. The system may selectively activate the ammonia generation system responsive to a detected temperature of an exhaust gas of an exhaust system being equal to or below a predetermined value.
Cummins Emission Solutions, Inc.


03/17/16
20160075615 

Stabilization of radiosynthetic intermediates


The present invention relates to a method for stabilizing radiosynthetic intermediates used in synthesis of 18f radiolabeled aromatic amino acid derivatives toward decomposition caused by beta and gamma radiations by the use of radical scavengers and/or reductants and/or antioxidants.. .
Trasis S.a.


03/10/16
20160069237 

Selective dosing module control system


Systems and methods to selectively control plurality of dosing modules may include receiving data indicative of an exhaust flow rate. An amount of reductant to be dosed may be determined based, at least in part, on the data indicative of the exhaust flow rate.
Cummins Emission Solutions, Inc.


03/03/16
20160064405 

Method for forming insulator film on metal film


According to one embodiment, forming a metal film on an underlying layer, and depositing an oxide film on the metal film using plasma of a mixed gas induced above the metal film. The mixed gas includes a gaseous material source, a gaseous oxidant, and a gaseous reductant..
Kabushiki Kaisha Toshiba


03/03/16
20160061079 

Aftertreatment system having dynamic independent injector control


An aftertreatment system is provided for an engine. The aftertreatment system may have at least one exhaust passage and a plurality of reductant injectors that are controllable to dose reductant into the at least one exhaust passage.
Caterpillar Inc.


03/03/16
20160060726 

Green process for the preparation of pure iron


The present invention relates to an eco-friendly and single step process for the preparation of high purity iron by using hydrogen plasma in a suitable smelting reactor furnace. Reduction of iron oxide in excess of 99% can be achieved by reducing the iron ore in hydrogen plasma smelting system.
Council Of Scientific And Industrial Research


03/03/16
20160059033 

Method for killing and tracing bacteria by coating same with self-assembled gold nanoshell layer and producing photothermal decomposition and cold light by means of laser


As an extremely simple and efficiency way to kill gram-positive, -negative, -multidrug resistant bacteria, and in particular methicillin-resistant staphylococcus aureus, gold nanoparticles were grown self-assembling to yield gold nanoshells on the surface of bacteria (bacteria coated with gold nanoshells or bacterial nanomaterials) by the solution contained gold ion but no adding reductant. The bacteria with gold nanoshells still kept their vitality and mobility for weeks.

02/25/16
20160053652 

Reductant delivery unit for automotive selective catalytic reduction with optimized fluid heating


A reductant delivery unit reduces nitrogen oxide (nox) emissions from a vehicle. The delivery unit includes a solenoid operated fluid injector having a fluid inlet and a fluid outlet.
Continental Automotive Systems, Inc.


02/25/16
20160053649 

Multi-function exhaust system for diesel and natural gas engines


A multi-functional exhaust system for diesel and natural gas engines includes a rectangular box housing, a selective catalytic reduction (scr) unit, at least one reductant injector, a plurality of sensors, and a mixing duct to mix the injected reductant and the exhaust gas. A portion of the mixing duct runs in parallel beside the scr unit reducing the overall length of the housing.
Safety Power, Inc


02/18/16
20160047288 

Reductant injection in an exhaust system


An engine exhaust system comprising an exhaust pipe routing an exhaust flow through a bend, and being in fluid communication with a catalyst downstream of the bend. An injector mounted to the exterior of the exhaust pipe, the injector with a tip disposed within the exhaust pipe at the bend, for injecting liquid reductant into the exhaust pipe.
Liebherr Machines Bulle Sa


02/18/16
20160047287 

Internal combustion engine having dedicated cylinder(s) for generation of both egr and exhaust aftertreatment reductant for nox-reducing catalyst


An exhaust gas recirculation (egr) system for an internal combustion engine having dedicated egr and operating at a lean air-fuel ratio. In such engines, one or more cylinders is operable as a dedicated egr cylinder, such that all of the exhaust produced by the dedicated egr cylinder(s) may be recirculated to the engine's main (non dedicated) cylinders.
Southwest Research Institute


02/11/16
20160040581 

Diagnosing system for reductant dosing system


An scr system may include a controller configured to diagnose errors with a dosing system. The controller may control a pump to compensate for a loss in pressure when dosing reductant and may maintain the pressure as close to a target pressure by modifying a parameter affecting the operation of the pump.
Cummins Emission Solutions, Inc.


02/11/16
20160040580 

Reductant tank sensor diagnostic method and system


A system for diagnosing a sensor of an exhaust aftertreatment system may include receiving a first tank level value from a sensor. A plurality of reductant dosing command values over a period of time are received.
Cummins Emission Solutions, Inc.


02/04/16
20160032805 

Reintroduction of air in delivery system accumulator


According to one embodiment, an apparatus for reintroducing air includes a bypass valve that reduces pressure in an accumulator that stores reductant to less than an air supply pressure of an air supply. The apparatus also includes a metering valve that fills the accumulator with air from the air supply at the air supply pressure, and a pump that pumps reductant into the accumulator..
Cummins Ip, Inc.


02/04/16
20160032801 

Aftertreatment system having multiple dosing circuits


An aftertreatment system is disclosed for use with a combustion engine. The aftertreatment system may have at least one exhaust passage, and a plurality of dosing circuits configured to inject reductant into the at least one exhaust passage.
Caterpillar Inc.


01/28/16
20160024988 

Exhaust treatment system that generates debounce duration for nox sensor offset


An exhaust treatment system configured to treat exhaust gas generated by an internal combustion engine includes a reductant delivery system that injects a reductant solution into an exhaust gas. A selective catalyst reduction (scr) device reacts with the reductant solution to reduce nox from the exhaust gas.
Gm Global Technology Operations Llc


01/21/16
20160020023 

Metal powder, producing the same, conductive paste including metal powder, and multilayer ceramic electronic component


A method for producing a metal powder that includes a first step of uniformly arranging a metal compound on a metal particle, and a second step of converting the metal compound uniformly arranged on the metal particle into a complex metal compound. In the first step, a solution that contains at least one metal element and at least one group 4 element different from the metal element is prepared, the solution being adjusted to have a ph of 5 or less.
Murata Manufacturing Co., Ltd.


01/14/16
20160010529 

Apparatus, method, and system for diagnosing reductant delivery performance


A system for diagnosing and/or determining the performance of a reductant delivery system may include determining a flow rate offset value for the reductant delivery system. A reduced reductant flow rate may be determined for a reductant dosing command value based, at least in part, on the determined flow rate offset when reductant dosing command is non-zero.
Cummins Ip, Inc.


01/07/16
20160003121 

Method for controlling the reductant buffer level in an exhaust gas aftertreatment device


A method for controlling a reductant buffer level in an exhaust gas after treatment device connectable downstream of an internal combustion engine includes performing a first reductant injection of a first amount upstream the exhaust gas after treatment device, performing a second reductant injection of a second amount upstream the exhaust gas after treatment device, which second amount is different to the first amount, evaluating the nox conversion resulting from the first and second reductant injections downstream the exhaust gas after treatment device to obtain a first and second result, controlling a further reductant injection in dependence of the first and second results from the first and second nox conversion evaluations.. .
Volvo Lastvagnar Ab


12/31/15
20150377111 

Pressure differentiated exhaust aftertreatment device


The disclosure relates to an exhaust gas aftertreatment device for purification of exhaust gas emissions. The exhaust gas aftertreatment device is arranged in an exhaust gas passage subsequently of an internal combustion engine and includes an encapsulating portion, a first catalytic substrate and a second catalytic substrate.
Volvo Car Corporation


12/31/15
20150377110 

Angled and compact exhaust gas aftertreatment device


An exhaust gas aftertreatment device for an internal combustion engine comprises a housing, first and second catalytic substrates arranged inside the housing such that the first catalytic substrate is arranged upstream of the second catalytic substrate, and a reductant injector arranged in between the first and second catalytic substrates. Further, the first and second catalytic substrates are arranged such that a fluid flow direction through the exhaust gas aftertreatment device is angled.
Volvo Car Corporation


12/31/15
20150377102 

System and controlling and diagnosing passive storage devices in exhaust aftertreatment systems


An internal combustion engine system includes an engine and an aftertreatment system that is connected to the engine to receive exhaust flow from the engine. The aftertreatment system includes a passive storage device for passively storing nox and/or hydrocarbons produced by the engine during cold start and low temperature operating conditions, and a nox reduction catalyst downstream of the passive storage device for receiving the nox released from the passive storage device when temperature conditions in the exhaust flow and/or nox reduction catalyst are above an effective temperature for nox reduction.
Cummins Inc.


12/31/15
20150375616 

Tank assembly for machines


A machine with a frame, a fuel tank, and a reductant tank is provided. The fuel tank includes a first l-shaped wall, a second l-shaped wall, and a peripheral wall assembly.
Caterpillar Inc.


12/24/15
20150367336 

Molecular sieve catalyst compositions, catalyst composites, systems, and methods


Described is a selective catalytic reduction material comprising a spherical particle including an agglomeration of crystals of a molecular sieve. The catalyst is a crystalline material that is effective to catalyze the selective catalytic reduction of nitrogen oxides in the presence of a reductant at temperatures between 200° c.
Basf Corporation


12/17/15
20150361849 

In-line decomposition reactor pipe with exhaust assist


An exhaust assisted pipe assembly including an outer portion having an opening for receiving dosed reductant from a dosing module and an inner portion disposed within the outer portion. The inner portion defines a main flow path for receiving a first portion of a fluid from an upstream source, and the inner portion and the outer portion cooperatively define a first flow path and a second flow path.
Cummins Emission Solutions, Inc.


12/17/15
20150361848 

Exhaust aftertreatment system for a compression-ignition engine


An exhaust aftertreatment system for purifying exhaust gases from a compression-ignition engine includes a first exhaust aftertreatment device including an oxidation catalyst and a particulate filter element fluidly coupled to an exhaust outlet of the engine. A second exhaust aftertreatment device includes an ammonia-selective catalytic reduction catalyst fluidly coupled to a downstream outlet of the first exhaust aftertreatment device.
Gm Global Technology Operations Llc


12/17/15
20150361847 

Valve assembly


A valve assembly for an aftertreatment system is disclosed. The valve assembly includes a coolant conduit.
Caterpillar Inc.


12/17/15
20150361845 

Feed-back for closed-loop selective catalytic reduction control


A system and method for using feed-back information, such as, for example, system-out nox levels, to provide for closed-loop selective catalytic reduction control. A reference generation module may adjust an ideal scr conversion value based on a quantity of reductant slippage from the engine system so as to provide an adjusted ideal scr conversion efficiency value.
Cummins Inc.


12/17/15
20150360175 

Air preheating and nox reduction integrated reactor and reaction method


An air preheating and denitration integrated reactor and reaction method. The reactor includes a rotary catalyst body, housing arranged outside the rotary catalyst body, and gas inlet and outlet channels on upper and lower surfaces of the housing; the gas inlet and outlet channel is in divided three, namely flue gas, reductant, and air inlet and outlet channels, the rotary catalyst body is cylindrical and includes a central shaft rotor and multiple circular catalyst layers rotate around the central shaft rotor, each circular catalyst layer is divided into air, flue gas and reductant zones by a radial sealing plate and axial sealing plate.
Shandong University


12/10/15
20150354476 

Engine adaptive control method to optimize exhaust gas recirculation and intake valve actuation events in low emission diesel engines


A power system may include an internal combustion engine, an exhaust gas recirculation system, a selective catalytic reduction system, and an engine control module. The internal combustion engine includes a plurality of combustion cylinders and a plurality of corresponding intake valves for controlling a flow of air from an intake into the cylinders.
Caterpillar Inc.


12/10/15
20150354425 

Heating element for reductant tank


A removable heating element is disclosed. The removable heating element includes a resistive filament.
Caterpillar Inc.


12/03/15
20150345356 

Reductant dosing system having staggered injectors


A mixer is disclosed for use in a reductant dosing system. The mixer may have an impingement floor located within an intended fluid injection path and generally parallel with a flow direction through the mixer.
Caterpillar Inc.


11/26/15
20150336997 

Manganese-based magnetic resonance contrast agents


Manganese coordination complexes with utility as magnetic resonance probes and as biological reductant sensors are disclosed. In one embodiment, ligands can stabilize both the mn2+ and mn3+ oxidation states.

11/26/15
20150336996 

Manganese-based magnetic resonance contrast agents


Manganese coordination complexes with utility as magnetic resonance probes and as biological reductant sensors are disclosed. In one embodiment, ligands can stabilize both the mn2+ and mn3+ oxidation states.
The General Hospital Corporation


11/26/15
20150336052 

Reductant supply system


A reductant supply system includes a reductant tank, an injector supply conduit fluidly connecting the reductant tank with an injector, a driving fluid source in fluid communication with the reductant tank via a dose driving conduit, a purge conduit in fluid communication with the driving fluid source and the reductant tank, and a valve in fluid communication with the reductant tank via the dose driving conduit and the purge conduit.. .
Caterpillar Inc.


11/19/15
20150329943 

Methods for reducing impurities in magnesium, purified magnesium, and zirconium metal production methods


A method for reducing impurities in magnesium comprises: combining a zirconium-containing material with a molten low-impurity magnesium including no more than 1.0 weight percent of total impurities in a vessel to provide a mixture; holding the mixture in a molten state for a period of time sufficient to allow at least a portion of the zirconium-containing material to react with at least a portion of the impurities and form intermetallic compounds; and separating at least a portion of the molten magnesium in the mixture from at least a portion of the intermetallic compounds to provide a purified magnesium, wherein the purified magnesium includes an increased level of zirconium compared to the low-impurity magnesium, wherein the purified magnesium includes greater than 1000 ppm zirconium, and wherein the purified magnesium includes a reduced level of impurities other than zirconium compared to the low-impurity magnesium. A purified magnesium including at least 1000 ppm zirconium and methods for producing zirconium metal using magnesium reductant also are disclosed..
Ati Properties, Inc.


11/19/15
20150329939 

Methods for reducing impurities in magnesium, purified magnesium, and zirconium metal production methods


A method for reducing impurities in magnesium comprises: combining a zirconium-containing material with a molten low-impurity magnesium including no more than 1.0 weight percent of total impurities in a vessel to provide a mixture; holding the mixture in a molten state for a period of time sufficient to allow at least a portion of the zirconium-containing material to react with at least a portion of the impurities and form intermetallic compounds; and separating at least a portion of the molten magnesium in the mixture from at least a portion of the intermetallic compounds to provide a purified magnesium, wherein the purified magnesium includes an increased level of zirconium compared to the low-impurity magnesium, wherein the purified magnesium includes greater than 1000 ppm zirconium, and wherein the purified magnesium includes a reduced level of impurities other than zirconium compared to the low-impurity magnesium. A purified magnesium including at least 1000 ppm zirconium and methods for producing zirconium metal using magnesium reductant also are disclosed..
Ati Properties, Inc.


11/19/15
20150329929 

An efficient process in the production of iron and steel from iron ore


The invention discloses a method of reducing iron oxide to recover iron from iron content mixture. The method includes the step of mixing a reductant containing at least one of a silicon carbide or ferro-silicon with iron content mixture and heating it at a temperature ranging from 600-1000° c.

11/12/15
20150322838 

Exhaust gas processing system independent to engine controls


A multi-functional apparatus and method for diagnosing issues in an engine system with a scr exhaust gas processing system and controlling reductant delivery to the scr system. The apparatus includes a venturi exhaust passage device with a reductant injector positioned on a transition from a low pressure passage to a downstream high pressure passage.

11/12/15
20150322546 

Method and device for producing crude copper


A method and device for producing a crude copper. The method comprises: mixing and reacting copper smelting molten slag (1), a carbon-containing reductant (2) and an inert gas (3) under pressure, the pressure of the inert gas (3) being 100 kpa to 800 kpa.
Xiang Guang Copper Co., Ltd.


11/12/15
20150321836 

Receiver for reductant tank


A receiver is disclosed. The receiver includes a housing.
Caterpillar Inc.


11/12/15
20150321145 

Internally heated urea reactor/injector for use with scr emissions control device


A method of treating nox-containing exhaust from an internal combustion engine of an automotive vehicle. Urea solution is stored on-board the vehicle and delivered to a reactor/injector unit.
Southwest Research Institute


11/05/15
20150315764 

Work vehicle


A hydraulic excavator includes a urea aqueous solution injection device, a urea aqueous solution tank, a pump, a first pipe, and a second pipe. The urea aqueous solution injection device is disposed in an engine compartment, and injects an aqueous solution of urea to clean exhaust gas.
Komatsu Ltd.


10/29/15
20150308315 

Techniques for thawing a reductant injector and reductant tank prior to an injection attempt


A method includes determining, at a controller having one or more processors, whether an ambient temperature is less than a predetermined temperature indicative of frozen reductant in an exhaust system of an engine. The method includes determining an injector thaw period for a reductant injector in the exhaust system when the ambient temperature is less than the predetermined temperature.

10/29/15
20150308314 

Reductant injector temperature model based on coil resistance


A method includes receiving, at a controller having one or more processors, one or more measured parameters, each measured parameter related to a temperature that affects a temperature of a reductant injector of an exhaust system of an engine. The method includes determining a resistance of a coil of the reductant injector.

10/29/15
20150307959 

Method and device for depleting copper smelting slag


A method and device for depleting copper smelting slag. The method comprises mixing copper smelting molten slag (1) with a reductant (2) and an inert gas (3) under pressure, and then depleting same.
Xiang Guang Copper Co., Ltd.


10/22/15
20150300228 

Reductant fill system


A method for delivering a reductant into a reductant tank through a fill conduit associated with the reductant tank is provided. The reductant tank is in selective fluid communication with an external source having a delivery conduit associated therewith.
Caterpillar Inc.


10/15/15
20150295264 

Biological fuel cell and methods


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.

10/08/15
20150283532 

Coating and lithiation of inorganic oxidants by reaction with lithiated reductants


A method for producing conductive carbon coated particles of an at least partially lithiated electroactive core material comprises the step of premixing an oxidant electroactive material with a metallated reductant followed by chemically reacting the oxidant electroactive material with the metallated reductant, said reductant being a coating precursor, said metal being at least one alkaline and/or at least one alkaline earth metal, and said chemically reacting being performed under conditions allowing reduction and metallation of the electroactive material via insertion/intercalation of the alkaline metal cation(s) and/or the alkaline earth metal cation(s) and coating formation via a polymerisation reaction like polyanionic or radicalic polymerisation of the reductant.. .

10/08/15
20150283508 

Reductant dosing system


A reductant dosing system for an engine is disclosed. The disclosed reductant dosing system includes a reservoir of reductant fluid that is connected to an inlet of a reductant pump.

10/01/15
20150275734 

Exhaust gas purification device for diesel engine


An exhaust gas purification device for a diesel engine in which a nox reduction and purification catalyst can be prevented from being broken by penetration of a reductant into a supporting member of the catalyst, while improving performance of the catalyst. The device includes a retainer on an inner surface of a connection pipe at a position between an injection nozzle for aqueous urea and an upstream end surface of a selective catalytic reduction catalyst and extends in a circumferential direction.
Isuzu Motors Limited


10/01/15
20150275732 

Coolant system for reductant tank


A coolant system for a reductant tank is disclosed. The coolant system includes a valve configured to control a coolant flow to the reductant tank.
Caterpillar Inc.


10/01/15
20150275730 

Systems and methods to reduce reductant consumption in exhaust aftertreament systems


Systems, apparatus and methods are provided for reducing reductant consumption in an exhaust aftertreatment system that includes a first scr device and a downstream second scr device, a first reductant injector upstream of the first scr device, and a second reductant injector between the first and second scr devices. Nox conversion occurs with reductant injection by the first reductant injector to the first scr device in a first temperature range and with reductant injection by the second reductant injector to the second scr device when the temperature of the first scr device is above a reductant oxidation conversion threshold..
Cummins Inc.


10/01/15
20150275323 

Production of pig iron


A method for producing pig iron by direct processing of iron-containing materials such as iron-containing sands, in which the iron-containing materials and carbonaceous reductant are mixed with a fluxing agent to form a mixture; briquettes or agglomerates are formed from the mixture; at least a portion of the agglomerates are preheated to a temperature of 750 to 1200° c. And are pre-reduced, then the preheated, pre-reduced agglomerates are introduced into the melting furnace; the agglomerates are melted at a temperature of from 1300 to 1760° c.
Hoffman & Sons Technologies, Llc


10/01/15
20150273395 

Reductant quality and scr adaption control system


An exhaust gas treatment system including a reductant delivery system configured to introduce reductant solution to an exhaust gas flowing through the exhaust gas treatment system. An amount of the reductant solution injected is based on an initial control parameter.
Gm Global Technology Operations Llc


09/24/15
20150266753 

Aqueous treatment apparatus utilizing precursor materials and ultrasonics to generate customized oxidation-reduction-reactant chemistry environments in electrochemical cells and/or similar devices


An electrochlorination and electrochemical system for the on-site generation and treatment of municipal water supplies and other reservoirs of water, by using a custom mixed oxidant and mixed reductant generating system for the enhanced destruction of water borne contaminants by creating custom oxidation-reduction-reactant chemistries with real time monitoring. A range of chemical precursors are provided that when acted upon in an electrochemical cell either create an enhanced oxidation, or reduction environment for the destruction or control of contaminants.
Global Water Holdings, Llc


09/17/15
20150260071 

Compact selective catalytic reduction system for nitrogen oxide reduction in the oxygen-rich exhaust of 500 to 4500 kw internal combustion engines


A compact selective catalytic reduction (scr) system comprising a gas flow inlet system, a vaporizer module and an scr reactor is described. The inlet flow system is configured to provide heat to the vaporizer module, to mix reductant with the exhaust gas and to provide an approximately uniform flow of the exhaust gas through the catalyst.
Johnson Matthey Catalysts (germany) Gmbh


09/17/15
20150260070 

Compact cylindrical selective catalytic reduction system for nitrogen oxide reduction in the oxygen-rich exhaust of 500 to 4500 kw internal combustion engines


A compact selective catalytic reduction (scr) system comprising a system inlet, a gas flow system and a plurality of catalyst clusters is described. The system inlet is configured to utilize heat of the cleaned exhaust to vaporize a solution of a reductant, or a precursor of a reductant, and to mix the vaporized reductant with exhaust gas to form a mixed gas.
Johnson Matthey Catalysts (germany) Gmbh


09/10/15
20150252709 

System and controlling dosing in selective catalytic reduction catalyst


An engine assembly includes an exhaust system having a first scr catalyst, a second scr catalyst in fluid communication with the first scr catalyst, and an injector configured to inject reductant into the exhaust system. A controller is configured to estimate a first amount of ammonia stored in the first scr catalyst and to estimate a second amount of ammonia stored in the second scr catalyst.
Gm Global Technology Operations Llc


09/10/15
20150251909 

Method for producing the lithium iron phosphate


The stated technical problem is solved due to the fact that in the process for producing the lithium iron phosphate comprising a mixing an iron compound with iron oxidation number in the range of +2.03÷+2.2 with the aqueous solution containing lithium and phosphate ions in the presence of carbonaceous reductant material, activating the mixture obtained to form a gel, and subsequent thermal treatment of the gel.. .

09/03/15
20150247439 

Reductant container


A reductant container having: a tank main body that accommodates a reductant; a heating member disposed in the tank main body and configured to generate heat so as to increase a temperature of the reductant; a covering member covering the heating member and having an inflow portion, the inflow portion allowing some of the reductant to flow into the covering member; a reductant supply pipe through which the reductant in the covering member is supplied to the outside of the tank main body; and a temperature measuring unit having a temperature sensor disposed in the covering member to sense a temperature of the reductant, the temperature measuring unit determining the temperature sensed by the temperature sensor, wherein the covering member has an upper wall covering the heating member from above, the upper wall having a lower surface that is inclined so as to be raised toward the temperature sensor.. .
Kobelco Construction Machinery Co., Ltd.


09/03/15
20150247435 

Systems, methods, and reductant dosing in an scr aftertreatment system


Systems, methods and apparatus disclosed that include an internal combustion engine and an exhaust system that includes an exhaust aftertreatment system with an scr catalyst. A nox sensor downstream of the scr catalyst is provided along with techniques for estimating an amount of nox and nh3 at the tailpipe to decouple the impact of cross-sensitivity of the nox sensor to nox and nh3.
Cummins Inc.


08/27/15
20150243553 

Method forming through-via using electroless plating solution


The present invention provides a method for forming a through-via, including the steps of (1) forming an alloy film as a diffusion-preventive layer that prevents diffusion of copper, in an area on a side wall of a hole formed in a substrate that extends from an entrance of the hole to a central part of the hole, by use of an electroless cobalt plating solution or an electroless nickel plating solution containing at least cobalt ion or nickel ion, a complexing agent, a reductant, and a ph adjusting agent; (2) forming an alloy film as a diffusion-preventive layer in an area on the side wall of the hole formed in the substrate that extends from the central part of the hole to a bottom of the hole, by use of an electroless cobalt plating solution or an electroless nickel plating solution containing at least the cobalt ion or the nickel ion, the complexing agent, the reductant, the ph adjusting agent, and an amino group-containing polymer; and (3) stacking a copper seed layer on the diffusion-preventive layer formed in each of steps (1) and (2) by use of an electroless copper plating solution.. .
Mitsubishi Gas Chemical Company, Inc.


08/27/15
20150240683 

Reductant supply system


A reductant supply system for an engine aftertreatment device is provided. The reductant supply system includes a tank configured to store a reductant.
Caterpillar Inc.


08/20/15
20150237739 

Pattern-forming composition and pattern-forming method using the same


The present invention relates to a pattern-forming composition used to form a conductive circuit pattern. The pattern-forming composition comprises cu powders, a solder for electrically coupling the cu powders, a polymer resin, a curing agent and a reductant.
Electronics And Telecommunications Research Institute


08/20/15
20150233316 

Method of diagnosing an exhaust gas sensor


Embodiments for an engine exhaust are provided. In one example, a method comprises categorizing each respective concentration of a plurality of exhaust gas constituents measured by a gas analyzer into one of oxidants or reductants, the gas analyzer receiving exhaust gas flow from an engine.
Ford Global Technologies, Llc


08/13/15
20150226135 

Controls for performance optimization of internal combustion engine systems


One illustrative embodiment is a method comprising operating an engine and an aftertreatment system by controlling a plurality of charge constituents provided the engine, iteratively perturbating one or more combustion inputs effective to vary operation of the engine, and determining fuel consumption and emissions information at the operating points effective to seek a weighted optimization of multiple parameters including fuel consumption and reductant consumption while also meeting a predetermined nox emissions criterion. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the description and figures..
Cummins Inc.


08/13/15
20150226102 

Techniques for control of an scr aftertreatment system


A selective catalytic reduction (scr) catalyst is disposed in an exhaust gas system of an internal combustion engine. A reductant injector is coupled to the exhaust gas stream at a position upstream of the scr catalyst, and first and second nox sensors provide nox measurements upstream of and downstream of the scr catalyst, respectively.
Cummins Inc.


08/06/15
20150218993 

Exhaust treatment system and method


An exhaust treatment system includes a catalytic device configured to receive an exhaust flow and an injector upstream of the catalytic device in an exhaust flow direction that injects a reductant into the exhaust flow. A controller is configured to determine a change in an amount of nox and a change in an amount of the reductant downstream of the catalytic device due to a change in an amount of the reductant injected by the injector.
Caterpillar Inc.


08/06/15
20150218990 

Diesel exhaust fluid filter permeability detection strategy and machine using same


A reductant dosing system for an exhaust aftertreatment system of a diesel engine includes a reductant tank with an inlet volume separated from an outlet volume by a sock filter. A filter permeability condition is detected by the electronic controller using a filter status algorithm that compares fluid level sensor data to expected data.
Caterpillar Inc.




Reductant topics: Internal Combustion Engine, Exhaust Gas, Scr Catalyst, Combustion, Selective Catalytic Reduction, Catalytic Reduction, Downstream, Nox Reduction, Nanoparticle, Hydrogen Sulfide, Regenerate, Hydrocarbon, Nitrogen Dioxide, Diesel Oxidation Catalyst, Conversion Efficiency

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