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Exhaust Gas patents

      

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




 Nox concentration measurement system patent thumbnailNox concentration measurement system
A nox concentration measurement system has a nox sensor, a detection section, a nh3 concentration estimation section and a calculation section. The nox sensor measures a sum concentration c4 of a concentration of nox (a concentration c1 of combustion derived nox) in exhaust gas g, and a concentration of no (concentration c3 of derived no which has been derived from nh3) oxidized from nh3.
Denso Corporation


 Exhaust gas recirculation control device and exhaust gas recirculation control method patent thumbnailExhaust gas recirculation control device and exhaust gas recirculation control method
An exhaust gas recirculation control device controls an exhaust gas recirculation device that includes an exhaust gas recirculation passage adapted to circulate a portion of exhaust gas of an internal combustion engine from an exhaust passage downstream of a turbine of a turbo supercharger along an exhaust flow to an intake passage upstream of a compressor of the turbo supercharger along an intake flow and downstream of an air flow meter along the intake flow, and a recirculation control valve adapted to adjust an amount of exhaust gas circulated to the intake passage. Furthermore, the exhaust gas recirculation control device includes recirculation ratio setting means adapted to set a lower target recirculation ratio for a smaller intake air amount of the internal combustion engine..
Nissan Motor Co., Ltd.


 Method of reducing engine nox emissions patent thumbnailMethod of reducing engine nox emissions
A system and method for increasing engine heating rate to facilitate early introduction of exhaust gas recirculation after a cold start include operating an electric machine connect to the engine to apply a load to the engine. The electric machine may be operated as a generator to produce an increased engine torque demand and increase the rate of engine heating until an engine temperature and an exhaust temperature exceed corresponding thresholds.
Ford Global Technologies, Llc


 Method of operating an internal combustion engine patent thumbnailMethod of operating an internal combustion engine
A method is disclosed for operating an internal combustion engine equipped with an aftertreatment device. The internal combustion engine is equipped with a cylinder having an exhaust gas port intercepted by an exhaust valve, the exhaust valve being actuated by means of a variable valve actuation (vva) system, an aftertreatment device regeneration is detected, and the exhaust valve closure is anticipated using the variable valve actuation (vva) system during the aftertreatment device regeneration to provide an exhaust valve actuation profile having an anticipated exhaust valve closure with respect to a baseline exhaust valve actuation profile..
Gm Global Technology Operations Llc


 Determining the conversion efficiency of an exhaust gas catalytic converter patent thumbnailDetermining the conversion efficiency of an exhaust gas catalytic converter
In order to determine the conversion efficiency of at least one component of a catalytic converter box comprising at least one scr catalytic converter and an oxides of nitrogen storage catalytic converter for the aftertreatment of the exhaust gases of an internal combustion engine, wherein the catalytic converter box is associated at the downstream end with a nox sensor, at least for a limited period of time the internal combustion engine is operated such that a first of the two components does not affect the signal detected by means of the nox sensor and the conversion efficiency of the second component is determined depending on the signal of the nox sensor that is not affected by the first component.. .
Robert Bosch Gmbh


 Method of controlling a particulate filter patent thumbnailMethod of controlling a particulate filter
A method of controlling a particulate filter of an internal combustion engine is disclosed. A regeneration cycle of the particulate filter is initiated.
Gm Global Technology Operations Llc


 Method of protecting a diesel particulate filter from overheating patent thumbnailMethod of protecting a diesel particulate filter from overheating
A method for preventing overheating of a diesel particulate filter during regeneration when an engine is idling may include using an electric machine to apply a load to the engine and compensating for the increase in applied load by increasing an engine torque set point to reduce the concentration of oxygen in the exhaust gas flowing to the diesel particulate filter. Increased engine torque may be provided by adjusting air-fuel ratio by enriching an air-fuel mixture supplied to the engine and the diesel particulate filter.
Ford Global Technologies, Llc


 Mixing structure patent thumbnailMixing structure
A lattice board 7 is obliquely arranged in a bent portion 1a (a flow changing portion) halfway in an exhaust pipe 1 where exhaust gas 4 flows curvedly so as to substantially bisect an angle made by inflow and outflow directions (see arrows x and y in the figure) of the exhaust gas entered upstream of and discharged downstream of the bent portion 1a, respectively. An injector 3 is arranged in the outflow direction of the exhaust gas 4 to inject urea water 5 (additive) to an entry side of the lattice board 7 such that flow passage walls of the lattice board 7 on which hit is the exhaust gas 4 from upstream has rear surfaces on which hit is a spray of urea water 5 from the injector 3..
Hino Motors, Ltd.


 Exhaust gas mixer patent thumbnailExhaust gas mixer
Systems are provided for a mixer. In one example, the mixer may include intersecting tubes with a plurality of inlets and/or outlets located along an exhaust conduit..
Ford Global Technologies, Llc


 Exhaust gas housing for an exhaust gas system of an internal combustion engine patent thumbnailExhaust gas housing for an exhaust gas system of an internal combustion engine
An exhaust gas housing for an exhaust gas system of an internal combustion engine, including a rail system which is provided for receiving at least one rectangular canning and which forms an insert which has a direction of insertion which is transverse to the direction flow, and which is also provided to positively fix at least one canning on a plane perpendicular to the direction of insertion.. .
Mtu Friedrichshafen Gmbh


Exhaust gas purification an internal combustion engine

An amount of ammonia flowing out from an scr catalyst is reduced at the time of carrying out rich spike control to reduce an amount of nox stored in an nsr catalyst. The nsr catalyst and the scr catalyst are arranged in order in an exhaust passage of an internal combustion engine which is able to be operated at a lean air fuel ratio, wherein a target air fuel ratio of exhaust gas flowing into the nsr catalyst during the rich spike control is made higher within the range of a rich air fuel ratio, in the case where the outflow of ammonia from the scr catalyst in accompany with the rich spike control is estimated or detected, than in the case where it is not estimated or detected..
Toyota Jidosha Kabushiki Kaisha

Method for exhaust gas aftertreatment and combustion system

In a method for exhaust gas aftertreatment, in which an exhaust gas to be aftertreated, which is produced during combustion of a fuel, is treated with a reducing agent. A constituent of the fuel is hereby also used as a constituent of the reducing agent, with the constituent of the fuel which is also used as a constituent of the reducing agent being hydrogen.
Siemens Aktiengesellschaft

Exhaust purifying system

An exhaust purification system can prevent a nh3 slip caused by an excessive injection of urea water, and includes: an scr that purifies nox contained in an exhaust gas using ammonia, as a reducing agent, produced from urea water; a urea water injection device that injects the urea water into an exhaust passage upstream from the scr; an estimated-adsorption-amount calculation unit that calculates an estimated adsorption amount of the ammonia adsorbed in the scr; an injection control unit that executes an injection control of the urea water injection device based on the estimated adsorption amount; and an estimated-adsorption-amount change unit that changes the estimated adsorption amount used for the injection control into a value increased or decreased by a predetermined amount when a predetermined condition is established that can cause a difference between an actual adsorption amount of the ammonia adsorbed in the scr and the estimated adsorption amount.. .
Isuzu Motors Limited

Method and system for exhaust emissions control

A twin charged engine is provided comprising a catalytic converter; a first compressor which, when operated, increases engine load; a second compressor which extracts energy from the exhaust gases to increase the overall engine efficiency; and a controller configured to operate one of at least two modes. A first mode is a standard operating mode in which the system is configured to optimise the efficiency of running of the engine.
Ford Global Technologies, Llc

Method of operating an automotive system

A method is disclosed for operating an automotive system having an internal combustion engine equipped with an exhaust gas aftertreatment system including a lean nox trap (lnt) upstream of a selective catalytic reduction washcoated particulate filter (scrf). A lnt inlet temperature is monitored.
Gm Global Technology Operations Llc

Method and system for processing exhaust gas

A method of processing exhaust gas includes receiving incoming exhaust gas and cooling it in at least one heat exchanger to create cooled exhaust gas. The cooled exhaust gas is compressed in a compressor to liquefy co2 leaving a remaining exhaust gas.

Method for producing a variable turbine geometry of an exhaust gas turbocharger

A method for producing a variable turbine geometry for an exhaust gas turbocharger may include arranging a first and a second guide vane support ring coaxially and axially at a distance from each other. The method may also include creating, by a boring process, at least one first guide vane bore in the first guide vane support ring and at least one second guide vane bore in the second guide vane support ring and aligned with the at least one first guide vane bore.
Bosch Mahle Turbo Systems Gmbh & Co. Kg

Turbocharger turbine with variable nozzle

An exhaust gas turbocharger (1) includes a turbine section (2) having a turbine housing (11) and a turbine wheel (4) disposed in the turbine housing (11). The turbine housing (11) defines a fluid inlet (13), a fluid outlet (10), and a volute (9) that receives fluid from the fluid inlet (13).
Borgwarner Inc.

Exhaust gas purification system

The exhaust gas purification system includes a scr, an nox sensor which is provided on a downstream side of the scr, and an nox purifying controller which controls an amount of urea water being ejected to the scr and performs an abnormality diagnosis based on a detection value of the nox sensor, wherein the exhaust gas purification system includes an exhaust gas temperature sensor which acquires temperature of the exhaust gas flowing into the scr, a temperature increasing rate calculating unit which calculates a temperature increasing rate at which the exhaust gas temperature acquired by the exhaust gas temperature sensor reaches a second temperature from a predetermined first temperature, and a prohibiting unit which prohibits abnormality diagnosis by the nox purifying controller in a case in which the temperature increasing rate calculated by the temperature increasing rate calculating unit is higher than a predetermined determination threshold value.. .
Isuzu Motors Limited

Thermoelectric converter and manufacturing manufacturing thermoelectric converter

A thermoelectric converter includes a substrate and two thermoelectric elements that may include a flat portion and a concave portion. The thermoelectric elements each include one end that contacts with the thermoelectric element and an other end that contacts with thermoelectric element at a bottom surface of the concave portion.
Mitsubishi Electric Corporation

Method and system for the denitrification of flue gases by means of sncr (selective non-catalytic reduction) and downstream catalyst for ammonia decomposition

A method for denitrification of flue gases and a system, wherein flue gases generated in a rotary kiln are conveyed to a calcining zone for the deacidification of raw cement meal. Aqueous ammonia solution, ammonia, or ammonia-releasing substances for denitrifying the flue gases injected into the calcining zone according to the method of selective non-catalytic reduction (sncr), and the flue gas stream, together with an ammonia slip generated during the denitrification, is passed through a heat exchanger and through at least one dedusting device.
Khd Humboldt Wedag Gmbh

Method and systems for exhaust gas recirculation

Various methods and systems are provided for reducing cylinder-to-cylinder variation in exhaust gas recirculation. In one embodiment, a system comprises a first cylinder group of an engine having a first number of cylinders, a second cylinder group of the engine having a second number of cylinders that is not an integer multiple of the first number of cylinders, and an exhaust system coupled to the first cylinder group and the second cylinder group.
General Electric Company

Vapor destruction apparatus and method

This disclosure includes methods of improving the efficiency of a degassing operation and can include directing exhaust gases created by an internal combustion engine to a volatile organic compound storage tank to increase the pressure therein and can include imposing a variable load upon the internal combustion engine as it is typically used in the performance of degassing operations and can include coupling a crankshaft of the internal combustion engine to a secondary internal combustion engine.. .
Brb/sherline, Inc.

Internal combustion engine

An air-fuel ratio control device switches a target air-fuel ratio from a lean set air-fuel ratio to a rich set air-fuel ratio after judging that an air-fuel ratio of an outflowing exhaust gas has become a stoichiometric air-fuel ratio and an oxygen storage amount of an exhaust purification catalyst has become a switching reference storage amount, and makes an average value of the target air-fuel ratio the stoichiometric air-fuel ratio to less than the lean set air-fuel ratio, from after the estimated value of the oxygen storage amount has become the switching reference storage amount or more until judging that the air-fuel ratio of the outflowing exhaust gas has become the stoichiometric air-fuel ratio if the estimated value of the oxygen storage amount becomes the switching reference storage amount or more before judging that the air-fuel ratio of the outflowing exhaust gas has become the stoichiometric air-fuel ratio.. .
Toyota Jidosha Kabushiki Kaisha

Exhaust gas control apparatus and exhaust gas control internal combustion engine

An exhaust gas control apparatus and method for an engine includes a urea water supply mechanism that adds urea water to exhaust gas, a scr catalyst that adsorbs ammonia and removes nox in the exhaust gas by using the adsorbed ammonia, and a control device that controls a urea water addition amount based on a target adsorption amount for the ammonia adsorbed onto the scr catalyst. The control device executes an integration processing that acquires a temperature of the scr catalyst at a predetermined cycle and integrates the acquired temperature of the scr catalyst when equal to or higher than a threshold, and an initialization processing that decreases the amount of the ammonia adsorbed on the scr catalyst on a condition that an integrated value of the temperature of the scr catalyst calculated in the integration processing has become equal to or higher than a predetermined value..
Toyota Jidosha Kabushiki Kaisha

Dual catalyst heating system

Methods and systems are provided for an exhaust gas aftertreatment system for a combustion engine in a motor vehicle. In one example, the exhaust gas aftertreatment comprises at least two catalyst devices arranged in an exhaust tract, and a feed device for a reducing agent arranged between the two catalysts, and which furthermore comprises a first heat device at the inlet of the first catalyst and a second heat device downstream thereof, the system adapted for the reduction of nitrogen oxides..
Ford Global Technologies, Llc

System and determining location and value of peak firing pressure

A system includes a combustion engine having an intake manifold and an exhaust manifold, an exhaust gas recirculation (egr) system coupled to the combustion engine and configured to route exhaust generated by the combustion engine from the exhaust manifold to the intake manifold, and a first knock sensor coupled to the combustion engine and configured to measure vibrations of the combustion engine and output a first vibration signal. The system also includes a controller communicatively coupled to the combustion engine, the knock sensor, the egr system, or any combination thereof.
General Electric Company

Virtual variable displacement two-stroke internal combustion piston engine

A true two-stroke (power and exhaust) internal combustion piston engine combining direct injection of all combustion and working fluid elements with exhaust valve(s) that open early during the power stroke if cylinder pressure falls below exhaust manifold pressure, will operate efficiently from power levels produced by conventional four-stroke engines of a fraction of the displacement of the two-stroke engine to power levels attainable by conventional four-stroke engines of twice the two-stroke engine displacement. No additional external systems will be required to enhance performance or control emissions, as all such enhancements are equivalent to control of the combustion and working fluid components.

Modular exhaust gas treatment device for an exhaust gas system of an internal combustion engine

An exhaust gas treatment device for an exhaust gas system of an internal combustion engine, including a housing which has at least two equivalently formed receiving elements for arranging the agn modules, and at least one exhaust gas guide module which is inserted into one of receiving elements, and an exhaust gas guide module for an exhaust gas treatment device or this type.. .
Mtu Friedrichshafen Gmbh

Exhaust gas purification internal combustion engine

A three-way catalyst, an nsr catalyst, and an scr catalyst are provided in this order for an exhaust gas passage, wherein the air-fuel ratio (afr) is set to a first afr which is a rich afr before the afr is switched from a theoretical afr to a lean afr, and then the afr is set to a second afr which is higher than the first afr and lower than the theoretical afr if a nox occlusion amount is less than a threshold value during a period until an nh3 adsorption amount of the scr catalyst becomes a predetermined adsorption amount, while the afr is set to a third afr which is higher than the first afr and lower than the second afr if the nox occlusion amount is not less than the threshold value.. .
Toyota Jidosha Kabushiki Kaisha

Turboprop engine assembly with combined engine and cooling exhaust

A turboprop engine assembly for an aircraft, including an internal combustion engine having a liquid coolant system, an air duct in fluid communication with an environment of the aircraft, a heat exchanger received within the air duct having coolant passages in fluid communication with the liquid coolant system and air passages air passages in fluid communication with the air duct, and an exhaust duct in fluid communication with an exhaust of the internal combustion engine. The exhaust duct has an outlet positioned within the air duct downstream of the heat exchanger and upstream of an outlet of the air duct, the outlet of the exhaust duct spaced inwardly from a peripheral wall of the air duct.
Pratt & Whitney Canada Corp.

Catalyst subassembly, device comprising same for purifying exhaust gases from an internal combustion engine, modular system for the subassembly, and manufacturing the subassembly

A catalyst subassembly for a device for purifying exhaust gases from an internal combustion engine, in particular a diesel engine, includes an scrf catalyst and an scr catalyst upstream of the scrf catalyst. The two catalysts are arranged in a common catalyst housing.
Bayerische Motoren Werke Aktiengesellschaft

Particulate sensor assembly

A particulate sensor assembly may include a particulate sensor and a sensor housing. The particulate sensor may be configured to measure a quantity of particulate matter in a stream of exhaust gas from a combustion engine.
Tenneco Automotive Operating Company Inc.

Impeller for an exhaust gas turbocharger

An impeller for an exhaust gas turbocharger may include a hub main body and blades arranged thereon. The hub main body may be configured as a polygon with a number of segments that may be tilted with respect to one another, the number of the segments corresponding to a number of the blades.
Bosch Mahle Turbo Systems Gmbh & Co. Kg

Cvd reactor chamber with resistive heating and substrate holder

A cvd reactor for single sided deposition of material on substrates, may comprise: an upper gas manifold and a lower gas manifold; a substrate carrier comprising a gas tight rectangular box open on upper and lower surfaces, a multiplicity of planar walls across the width of the box, the walls being equally spaced in a row facing each other and defining a row of channels within the box, the walls comprising mounting fixtures for a plurality of substrates and at least one electrically resistive heater element; and clamps within the vacuum chamber for making electrical contact to the at least one electrically resistive heater element; wherein the upper gas manifold and the lower gas manifold are configured to attach to the upper and lower surfaces of the substrate carrier, respectively, connect with upper and lower ends of the channels, and isolate gas flows in odd numbered channels from gas flows in even numbered channels, wherein the channels are numbered in order along the row, and wherein the gas flows comprise, for each of the gas manifolds, an exhaust gas flow and a process gas flow.. .
Crystal Solar Incorporated

Step structure of motorcycle

A motorcycle with a reduced number of parts for a step structure to achieve a compact and simple structure. The motorcycle includes an engine main body of an engine, which exerts power for driving a rear wheel.
Honda Motor Co., Ltd.

Vehicle having an internal combustion engine and a waste-heat collecting housing

A waste-heat collection system for a vehicle is provided. The vehicle includes an internal combustion engine and an exhaust manifold via which exhaust manifold hot exhaust gas coming from the internal combustion engine is introduced into an engine-side segment of an exhaust system.
Bayerische Motoren Werke Aktiengesellschaft

Use of clinker kiln dust for gas scrubbing

Methods and apparatus for reducing the content of controlled acidic pollutants in clinker kiln emissions are disclosed. The methods and apparatus include introducing bypass dust produced during production of clinker into one or more locations between the preheater exhaust and the inlet to a dust filter including into a gas conditioning tower.
Calportland Company

Finned coaxial cooler

A heat exchanger (100) suitable for use as a pre cooler in an internal combustion engine exhaust gas recirculation system comprises one or a plurality of rigid tubes (103), each having one or more internal cooling fins (111) to act as heat exchange surfaces to transfer heat from a gas to the walls of the rigid tubes. The rigid tubes are cooled by a liquid coolant surrounding the tubes and contained within an outer jacket (113) surrounding said tubes.
Senior Uk Limited

Method for controlling a corona ignition device

Disclosed is an inventive method for controlling a corona ignition device of an internal combustion engine. A corona discharge, which ignites fuel in a combustion chamber of the engine, is generated by applying a voltage to the corona ignition device.
Borgwarner Ludwigsburg Gmbh

Supercharger with exhaust gas recirculation

An engine, methods and systems are provided for supercharging charge air for internal combustion engines. The engine having an intake, and a blower with at least one impeller in the intake mounted on a rotatable shaft.
Ford Global Technologies, Llc

Over-fueling control based on oxygen sensor feedback

A method of controlling a concentration of hydrocarbons in exhaust gas from an internal combustion engine includes sensing an oxygen percentage of the flow of exhaust gas from the internal combustion engine and determining a concentration of hydrocarbons in the flow of exhaust gas. An engine control module may then adjust the sensed oxygen percentage of the exhaust gas based on the determined concentration of hydrocarbons in the flow of exhaust gas to define a corrected oxygen percentage.
Gm Global Technology Operations Llc

Abnormality diagnosis system of downstream side air-fuel ratio sensor

The abnormality diagnosis system comprises an air-fuel ratio control means which sets the target air-fuel ratio of exhaust gas to a first set air-fuel ratio set to a first side of a rich side or a lean side, then, when a downstream side output air-fuel ratio is at the first side, switches the target air-fuel ratio to a second set air-fuel ratio set to a second side at the opposite side from the first side. The abnormality diagnosis system calculates the time from when the target air-fuel ratio is switched to when the downstream side output air-fuel ratio starts to change toward the stoichiometric air-fuel ratio based on a differential value of the downstream side output air-fuel ratio and, when the calculated time is a predetermined time or more, judges that a dead time at the downstream side air-fuel ratio sensor is abnormal..
Toyota Jidosha Kabushiki Kaisha

Method and controlling internal-combustion engine

A method for controlling an internal-combustion engine includes detecting knocking in the internal-combustion engine. An egr gas quantity of egr gas is increased in a case where the knocking is detected.
Honda Motor Co., Ltd.

Physics based single cylinder charging model

A system includes a residual per cylinder calculation module that calculates an amount of residual (i.e., trapped exhaust gas) within an engine cylinder. A temperature calculation module calculates a temperature within the engine cylinder based on the amount of residual.
Gm Global Technology Operations Llc

Fuel property estimation device

This fuel property estimation device is used in an internal combustion engine that uses a mixed fuel of three kinds of fuel and includes a first sensor that outputs a signal responsive to a physical property of the fuel in a fuel route and a second sensor outputs a signal responsive to an oxygen concentration of exhaust gas. This device measures a physical property value of the mixed fuel based on a first sensor signal, and calculates an air-fuel ratio value at stoichiometric combustion state using feedback of a second sensor signal.
Toyota Jidosha Kabushiki Kaisha

Waste-gate valve device

To provide a waste-gate valve device with a good flow-rate controllability. A waste-gate valve device 1 includes: a turbine housing 3 provide with a waste-gate channel 2 through which exhaust gas bypasses a turbine; and a waste-gate valve 4 to open and close an outlet of the waste-gate channel 2.
Mitsubishi Heavy Industries, Ltd.

Internal combustion engine, operating the same and control device for carrying out the method

An internal combustion engine includes: plural cylinders, a first exhaust gas turbocharger having a high-pressure turbine and a high-pressure compressor, a second exhaust gas turbocharger having a low-pressure turbine and a low-pressure compressor, and an scr catalytic converter positioned between the high-pressure turbine and the low-pressure turbine, via which exhaust gas leaving the high-pressure turbine is conducted upstream of the low-pressure turbine. The low-pressure compressor is assigned a power take-in, via which the low-pressure compressor can be driven when as a consequence of a relatively large exhaust gas temperature drop at the scr catalytic converter via the low-pressure turbine an adequate amount of energy required to supply the cylinders of the internal combustion engine with a desired quantity of charge air can no longer be provided..
Man Diesel & Turbo Se

Engine device

The engine device includes a first case for removing particulate matter in the exhaust gas of the engine and a second case for removing nitride oxides in the exhaust gas of the engine. The second case is connected to the first case via a urea mixing pipe.
Yanmar Co., Ltd.

Exhaust system for vehicle

An exhaust system for a vehicle includes a heat insulation coating layer formed on an inner wall surface of an exhaust gas flow tube through which exhaust gas passes. The heat insulation coating layer includes an inorganic binder including two or more silicon-based compounds and an aerogel dispersed in the inorganic binder, includes 5 to 50 parts by weight of the aerogel for 100 parts by weight of the inorganic binder, and has heat conductivity of at most 1.0 w/mk, measured by astm e1461..
Hyundai Motor Company

Abnormality diagnosis nox storage reduction catalyst

An apparatus according to the present invention is adapted to calculate an nox storage rate defined as the rate of the quantity of nox stored into the nsr catalyst to the quantity of nox flowing into the nsr catalyst, based on quantity of nox flowing into the nsr catalyst and the quantity of nox flowing out of the nsr catalyst in a state in which the amount of nox stored in the nsr catalyst is equal to or larger than the breakthrough start amount of a criterion catalyst and the flow rate of exhaust gas flowing through the nsr catalyst is equal to or higher than a predetermined lower limit flow rate. The apparatus diagnoses the nsr catalyst as normal if the nox storage rate thus calculated is equal to or higher than a predetermined threshold and as abnormal if the nox storage rate is lower than the predetermined threshold..
Toyota Jidosha Kabushiki Kaisha

Predictive control of ammonia storage in a selective catalytic reduction device using connectivity information

A method for controlling a selective catalytic reduction device in an exhaust aftertreatment system of a vehicle includes monitoring vehicle connectivity information, and controlling ammonia storage in the selective catalytic reduction device based on the monitored vehicle connectivity information. Vehicle connectivity information is used to predict vehicle operating conditions along an estimated path of vehicle travel.
Gm Global Technology Operations Llc

Arrangement of catalyzed teg systems

An exhaust aftertreatment system may include an aftertreatment component and thermoelectric generators. The aftertreatment component is disposed in an exhaust gas passageway.
Tenneco Automotive Operating Company Inc.

Method and operating a combustion machine

The disclosure relates to internal combustion engines in general, and teaches various methods and apparatus for operating engines with an exhaust-gas turbocharger. Some embodiments include a method for operating an internal combustion engine having a fresh-gas tract for the supply of fresh gas to a cylinder, and an exhaust tract for the discharge of exhaust gas.
Continental Automotive Gmbh

Device and impacting the amount of nitrogen oxides in exhaust gases from an internal combustion engine

A method and an exhaust treatment system are provided for treatment of an exhaust stream that comprises nitrogen oxides nox. The method comprises using a first slip-catalyst sc1, arranged at a first device to create a first impact on a first amount of nitrogen oxides nox_1 an nox-storing catalyst may store nitrogen oxides nox.
Scania Cv Ab

System and controlling coolant supply to an exhaust gas

A system may include an exhaust conduit configured to route an exhaust gas from an engine to a heat recovery steam generator (hrsg). The system may also include a coolant supply coupled to the exhaust conduit.
General Electric Company





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