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Exhaust Gas patents

      

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




 Fuel cell module patent thumbnailFuel cell module
An object is to provide a highly efficient and small-sized fuel cell module. To achieve this object, a cell stack 10, a reformer 20, and an evaporator 30 are accommodated together in a casing 50.
Sumitomo Precision Products Co., Ltd.


 Continuous heating furnace patent thumbnailContinuous heating furnace
A continuous heating furnace includes one or a plurality of closed type gas heaters each having a combustion chamber, a guide section that guides an exhaust gas, a first radiation surface that extends in a direction perpendicular to a conveyance direction of a baking object, heated by combustion in the combustion chamber and heat from the guide section and transfers radiant heat to the baking object, and an exhaust hole that discharges the exhaust gas, and at least one of exhaust heat transfer unit juxtaposed with the gas heater in the conveyance direction, each having a second radiation surface that communicates with the exhaust hole and heated by the exhaust gas, and a heat transfer acceleration unit that accelerates heat transfer from the exhaust gas to the second radiation surface at one or the other end sides in a direction perpendicular to the conveyance direction of the second radiation surface.. .
Ihi Corporation


 Motor vehicle and air filter box patent thumbnailMotor vehicle and air filter box
A motor vehicle is provided which has an engine, an inlet air section for supplying the engine with inlet air, a compressor arranged in the inlet air section and a vortex generator arranged in the inlet air section upstream of the compressor. The vortex generator has at least one guide vane for generating a vortex in the inlet air and a vortex generator outlet having a first radius.
Ford Global Technologies, Llc


 Coherent-structure fuel treatment systems and methods patent thumbnailCoherent-structure fuel treatment systems and methods
Fuel efficiency in a combustion engine is increased by treating the fuel in a reaction chamber prior to delivering the fuel into the combustion chamber of the engine. The method includes the step of entraining a stream of exhaust gas to travel upstream through the reactor chamber in a first flow pattern.
Thrival Tech, Llc


 Powertrain for hybrid vehicle having dedicated egr patent thumbnailPowertrain for hybrid vehicle having dedicated egr
Various methods and systems may be used to provide recirculated engine exhaust to an engine of a hybrid powertrain. It is assumed that the engine is equipped with a dedicated egr loop.
Southwest Research Institute


 Exhaust gas recirculation (egr) system for internal combustion engines patent thumbnailExhaust gas recirculation (egr) system for internal combustion engines
An exhaust gas recirculation (egr) system for marine internal combustion engines and other variants is provided. An internal combustion engine is coupled to an electric power generator.
Cummins Power Generation Ip, Inc.


 System for the recirculation of exhaust gases patent thumbnailSystem for the recirculation of exhaust gases
A system for the recirculation of exhaust gases is disclosed. The system includes an air intake device for an internal combustion engine with intake ducts feeding air to the combustion cylinders, each combustion cylinder including an intake duct of its own, and the intake ducts include an exhaust gas inlet orifice for exhaust gases.
Valeo Systemes Thermiques


 Motor assembly patent thumbnailMotor assembly
A motor assembly for a motor vehicle includes an internal combustion engine that has an exhaust gas purification device and a heat engine. The heat engine has at least one closed working space that is filled with a gas.
Bayerische Motoren Werke Aktiengesellschaft


 System for recuperating heat from the exhaust gases in an internal combustion engine, with two heat exchangers on a gas recirculation circuit patent thumbnailSystem for recuperating heat from the exhaust gases in an internal combustion engine, with two heat exchangers on a gas recirculation circuit
A system and method for recuperating energy for a motor vehicle equipped with an internal combustion engine. The system includes a recirculation circuit for the partial recirculation of the engine exhaust gases; a first coolant circuit passing through the engine and passing through a first cooling exchanger configured to collect heat energy from the recirculation circuit; a second circuit through which there circulates a state-change fluid to mechanically drive an output shaft of an expansion machine of the second circuit; and a third coolant circuit comprising a second cooling exchanger to collect heat energy from the recirculation circuit.
Renault S.a.s.


 Method and system for combustion control for gas turbine system with exhaust gas recirculation patent thumbnailMethod and system for combustion control for gas turbine system with exhaust gas recirculation
In one embodiment, a system includes at least one sensor configured to communicate a signal representative of blower vane position, wherein the blower vane is disposed in a blower of an exhaust gas recirculation system receiving exhaust from a gas turbine system and recycling the exhaust gas back to the gas turbine system. The system further includes a controller communicatively coupled to the at least one sensor, wherein the controller is configured to execute a control logic to derive a reference value for the blower vane position, and wherein the controller is configured to apply a direct limit, an model-based limit, or a combination thereof, to the reference value to derive a limit-based value, and wherein the controller is configured to position the blower vane based on the limit-based value..
Exxonmobil Upstream Research Company


Erosion suppression system and method in an exhaust gas recirculation gas turbine system

In an embodiment, a method includes flowing an exhaust gas from a turbine of a gas turbine system to an exhaust gas compressor of the gas turbine system via an exhaust recirculation path; evaluating moist flow parameters of the exhaust gas within an inlet section of the exhaust gas compressor using a controller comprising non-transitory media programmed with instructions and one or more processors configured to execute the instructions; and modulating cooling of the exhaust gas within the exhaust recirculation path, heating of the exhaust gas within the inlet section of the exhaust gas compressor, or both, based on the evaluation.. .
Exxonmobil Upstream Research Company

Method and system for startup of gas turbine system drive trains with exhaust gas recirculation

In one embodiment, a system includes a drive train starter system. The drive train starter system includes a generator mechanically coupled to a drive train of a gas turbine system and an exciter system electrically coupled to the generator and configured to provide a magnetic field.
Exxonmobil Upstream Research Company

Exhaust flue

An exhaust flue (40) includes an exhaust chimney body (43), and an open end multi-hole area (51). The exhaust chimney body (43) is a passage for discharging exhaust gas.
Mitsubishi Heavy Industries, Ltd.

Reverse-flow core gas turbine engine with a pulse detonation system

The engine (10) includes a low spool (16) disposed aft of an air inlet (12) and a high spool (34) disposed aft of the low spool (16). An intake reverse-duct (44) is disposed radially outward of the high spool (34) and reverses direction of low pressure compressed air from the low spool (16) into a forward-flow high pressure compressor (40) of the high spool (34).
United Technologies Corporation

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

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

Dual fuel engine system

A dual fuel engine system is provided. The dual fuel engine system includes a dual fuel engine.
Caterpillar Inc.

Exhaust gas line section for supplying liquid additive

An exhaust gas line section, through which an exhaust gas can flow, includes a flow guiding structure, a feed unit configured to supply a liquid additive to the exhaust gas, and a permeable impingement structure, the flow guiding structure, the feed unit, and the permeable impingement structure being positioned one behind the other in the flow direction. The feed unit and the flow guiding structure are arranged and configured such that an impingement region of the liquid additive on the impingement structure overlaps the center of gravity of a flow distribution of the exhaust gas flowing through the impingement structure..
Continental Automotive Gmbh

Method for detecting, avoiding and/or limiting critical operating states of an exhaust gas turbocharger

C) if appropriate, executing control interventions as a function of the determined axial bearing load.. .

Method for monitoring a degree of clogging of the starting injectors of a turbine engine

A method for monitoring a degree of clogging of the starting injectors of a turbine engine, which includes: a combustion chamber into which at least one starting injector supplied with fuel leads, the starting injectors being suitable for initiating the combustion in the chamber by igniting the fuel; and a turbine rotated by the gases resulting from the combustion of the fuel in the chamber, the method including the steps involving: the measurement, during a phase of starting the turbine engine, of the temperature of the exhaust gases at the outlet of the turbine; and the determination, from the changes over time in the temperature thus measured, of a degree of clogging of the starting injectors. A system for monitoring a degree of clogging capable of implementing the method, and a turbine engine including such a system..
Turbomeca

Oxidation catalyst for a lean burn internal combustion engine

An apparatus is disclosed. The apparatus comprises a lean-burn internal combustion engine, engine management means and an exhaust system for treating exhaust gas of the engine.
Johnson Matthey Public Limited Company

Method and catalyst for the simultaneous removal of carbon monoxide and nitrogen oxides from flue or exhaust gas

A method and a catalyst, where flue gas or exhaust gas containing harmful carbon monoxide, organic compounds (voc) and nox is contacted with a layered catalyst in which a first layer comprises an oxidation catalyst and in an underlying layer a nh3-scr catalyst for the simultaneous removal of the carbon monoxide and nox.. .
Haldor Topsoe A/s

Catalytic converter

A catalytic converter 10 includes: a substrate 1 having a cell structure in which exhaust gas flows; and catalyst layers 3 that are formed on cell wall surfaces 2 of the substrate 1. The catalyst layers 3 include a first catalyst layer 4 disposed on an upstream side of the substrate 1 in an exhaust gas flow direction and a second catalyst layer 5 disposed on a downstream side of the substrate in the exhaust gas flow direction.

Nox storage reduction catalyst for purifying exhaust gas and exhaust gas purification method using said catalyst

The present invention is to provide a nox storage reduction catalyst for purifying exhaust gas capable of efficiently removing carbon monoxide (co), a hydrocarbon (hc), and a nitrogen oxide (nox), in particular nox, which are harmful components contained in exhaust gas. The nox storage reduction catalyst for purifying exhaust gas of the present invention is characterized by being obtained by using a complex oxide of strontium and cerium as a catalytic active component, in which the complex oxide of strontium and cerium adsorbs 1.0 ml or less of oxygen per gram in a 400° c.
Umicore Shokubai Japan Co., Ltd.

Precipitated and calcined composition based on zirconium oxide and cerium oxide

The present invention relates to compositions based on zirconium oxide and cerium oxide that exhibit a sufficiently high specific surface area after calcination and a low maximum reduction temperature of the oxide after calcination. Compositions of the present invention may be notably used in various catalytic systems, such as for the treatment of exhaust gases from internal combustion engines..
Rhodia Operations

Membrane-based exhaust gas scrubbing method and system

Various exemplary embodiments relate to a method and apparatus to reduce emissions of target emission gasses such as sulfur oxides, nitrogen oxides, and carbon oxides from combustion exhaust such as marine engine exhaust by gas membrane separation and liquid carrier chemical absorption. The membrane separation system consists of an absorption system containing semi-permeable hollow fiber membranes through which is circulated a liquid absorbent.
Ionada Incorporated

Exhaust gas treatment method, exhaust gas treatment device, and exhaust gas treatment system

An exhaust gas treatment system provided with an exhaust gas treatment device, the exhaust gas treatment system having: a reaction unit for causing a gas purification agent and an acidic gas to react, the reaction unit being provided with a gas purification agent addition means for adding a gas purification agent to an exhaust gas containing the acidic gas and having a temperature of at least 190° c.; and a removal unit provided with a bag filter for removing the reaction product obtained by the reaction unit from the exhaust gas; the gas purification agent containing slaked lime having a specific surface area as measured by the bet method of at least of 25 m2/g and a pore volume as measured by the nitrogen desorption bjh method of at least 0.15 cm3/g. In this exhaust gas treatment system, an exhaust gas purification catalyst may be supported on the bag filter..
Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd.

Method and preventing corrosion of compressor impurity separation mechanism

An alkalinity control agent is sprayed upstream of a compressor in a first impurity separator to discharge impurities containing at least sulfur oxides in exhaust gas together with drain from an aftercooler in the first impurity separator.. .
Ihi Corporation

Chimney pipe, exhaust gas producing an exhaust gas system having such a chimney pipe

In order to be able to make length adjustments in a chimney pipe system as flexibly as possible, the chimney pipe has two opposite connection ends, which are connected to each other by a center part. The one connection end has a conical insertion region and the other connection end is cylindrical.
Jeremias Gmbh Fachgrosshandel FÜr Schornsteinbedarf

Pressurized incineration facility and pressurized incineration method

A pressurized incineration facility (100, 200) includes: a pressurized incinerator (1) which incinerates a processing object (p) under a pressure increased by compressed air (a); a turbocharger (5) which produces the compressed air by being rotationally driven by combustion exhaust gas (g) of the pressurized incinerator; and a seal device (5i) which jets seal gas (s) to a rear surface (5a1) of a turbine impeller (5a) of the turbocharger.. .
Sanki Engineering Co., Ltd.

Exhaust gas flow control system for an internal combustion engine

In an exhaust gas flow control system for an internal combustion engine, with a first exhaust gas duct and a second exhaust gas duct, through both of which exhaust gas from the internal combustion engine can flow to a turbine of an exhaust gas turbocharger with an exhaust gas recirculation line branching off the first exhaust gas duct, a shut-off element is provided which is adjustable between a closed position in which exhaust gas is prevented from flowing into the exhaust gas recirculation line and directing it via a communication passage into the second exhaust gas duct, and at least a first open position in which exhaust gas is directed out of the first exhaust gas duct into the exhaust gas recirculation line while blocking the communication passage between the first and second exhaust gas ducts and a second open position wherein both the first and the second exhaust gas ducts as well as the communication passage between the two ducts is open but the recirculation line is closed.. .
Daimler Ag

Engine

Provided is an engine that suppresses the occurrence of knocking or an accidental fire, which makes it possible to perform the operations of premixed compression self-ignition. Regarding the present invention, an engine includes a reforming cylinder, which is a fuel reforming device, and the reforming cylinder is connected to an intake pipe and an egr pipe via a supply pipe and connected to the intake pipe via an exhaust pipe, and a primary fuel injection device is provided that injects fuel to the mixture of intake air and exhaust gas supplied to the reforming cylinder through the supply pipe..
Yanmar Co., Ltd.

Control system of internal combustion engine

This control device for an internal combustion engine is equipped with: an air/fuel ratio sensor provided to the exhaust passage of an internal combustion engine; and an engine control device that controls the internal combustion engine on the basis of the sensor output current of the air/fuel ratio sensor. The air/fuel ratio sensor is equipped with: a gas chamber to be measured, into which exhaust gas flows; a reference cell for which the reference cell output current varies according to the air/fuel ratio of the exhaust gas inside the gas chamber to be measured; and a pump cell that, according to the pump current, pumps oxygen into or out of the exhaust gas in the gas chamber to be measured.
Toyota Jidosha Kabushiki Kaisha

Control device for internal combustion engine (as amended)

There is provided a control device for an internal combustion engine provided with a filter on the downstream side of a catalyst having an oxidation function, the device including: a control unit performing oxygen concentration reduction control for reducing the oxygen concentration of exhaust gas flowing into the catalyst based on an exhaust temperature increase request on the downstream side of the catalyst made when regeneration of the filter is performed, in which the control unit is provided with means for acquiring an s concentration value of a fuel combusted in the internal combustion engine, and in which the oxygen concentration is set based on the s concentration value. Accordingly, the white smoke resulting from combination between so3 and h2o can be suppressed while filter regeneration is performed..
Toyota Jidosha Kabushiki Kaisha

System and estimating the quantity of particulate accumulated in the particulate filter of a diesel engine

A diesel engine system comprises a particulate filter interposed in an exhaust line and a plurality of fuel injectors associated with an engine. When a quantity of particulate accumulated within said filter is estimated to be greater than a threshold, a control mode of the injectors is activated which causing an automatic regeneration of the filter, by increasing a temperature of exhaust gases fed to the filter sufficient for burning the particulate within the filter.
Fiat Group Automobiles S.p.a.

Method for operating a gas turbine below the nominal power thereof

A method for operating a gas turbine below the nominal power includes: determining a lower power threshold value of the gas turbine which causes the gas turbine to leave a co-emission-compliant partial load range of the gas turbine; providing a specified threshold value for output gas turbine power, wherein the specified threshold value is less than the nominal power of the gas turbine; and operating the gas turbine at an output gas turbine power above the specified threshold value at a constant exhaust gas temperature, wherein the inlet guide blades of a compressor of the gas turbine are closed further in order to reduce the output gas turbine power. A sufficiently large valve is selected for the specified threshold value so that increases of the primary zone temperature, combustion temperature, and exhaust temperature extend over a co-emission-compliant partial load range of the gas turbine that is as large as possible..
Siemens Aktiengesellschaft

Method for recirculation of exhaust gas from a combustion chamber of a combustor of a gas turbine and gas turbine for doncuting said method

A method for recirculation of exhaust gas from a combustion chamber of a combustor of a gas turbine back to the supply side of the combustor provides a partial flow of the exhaust gas in the combustion chamber directly extracted from the combustion chamber and internally fed back to an entrance of the combustor through an internal channel of the combustor.. .
Alstom Technology Ltd

Method for increasing the power of a combined-cycle power plant, and combined-cycle power plant for conducting said method

The invention relates to a method for temporary increasing the power of a gas turbine, which is part of a combined-cycle power plant, wherein the exhaust gas of the gas turbine is used in a heat recovery steam generator to generate steam for a water/steam cycle including a steam turbine with a high pressure steam turbine, an intermediate pressure steam turbine and a low pressure steam turbine, whereby the method comprises the step of injecting steam from the water/steam cycle at a predetermined injection pressure into the gas turbine. The efficiency is improved by taking steam of a lower pressure than the predetermined injection pressure from the water/steam cycle, increasing the pressure of the steam taken from the water/steam cycle to the predetermined injection pressure by subjecting it in separate compressing means to a compression step, and injecting the compressed steam into the gas turbine..
Alstom Technology Ltd

Discharge valve and associated device

The invention concerns a discharge valve (17) intended to be fitted in a discharge duct of an apparatus designed to be driven by a fluid, in particular a turbocharger driven by the exhaust gases from an engine. The discharge valve (17) comprises a cavity (83) having a first (85), a second (87) and a third aperture (89), each intended to be connected to a respective duct, the discharge valve (17) also comprising first (91) and second (93) means for closing the first (85) and second (87) apertures, respectively, in order to control communication between the ducts..
Valeo Systemes De Controle Moteur

Engine device

An engine is disposed below an operator's seat in such a manner that a flywheel housing is located at the front of a traveling machine body. An exhaust gas purification device is disposed behind the engine and below a radiator.
Yanmar Co., Ltd.

Exhaust gas purification controlling the same

An exhaust gas purification system capable of preventing clogging of a reducing agent injection valve due to solidified urea aqueous solution to prevent a decrease in the exhaust gas purification efficiency of an internal-combustion engine. The exhaust gas purification system includes a diesel particulate filter, a reducing agent injection valve and an scr catalyst in this order from the exhaust upstream side.
Bosch Corporation

Method for controlling an oxygen concentration

A method is disclosed for controlling a concentration of oxygen that is measured by an oxygen sensor of an after-treatment system of an internal combustion engine when a regeneration of an after-treatment device is required. The method may be a computer-implement method, an oxygen sensor target value is lowered in a stepped phase as a function of an exhaust gas flow speed as the exhaust gas passes through the after-treatment system.
Gm Global Technology Operations Llc

Engine unit and work vehicle

Two sets of assemblies are arranged such that a diesel particulate filter device of the assembly, a selective catalytic reduction device of the assembly, a selective catalytic reduction device of the assembly, and a diesel particulate filter device of the assembly are located next to each other in this order. Exhaust tubes are provided to extend upward from gas outlets of the selective catalytic reduction device of the assembly and the selective catalytic reduction device of the assembly.
Komatsu Ltd.

Reducing agent supplying device

A reducing agent supplying device is for a fuel combustion system that includes a nox purifying device with a reducing catalyst arranged in an exhaust passage to purify nox contained in exhaust gas of an internal combustion engine. The reducing agent supplying device supplies a reducing agent into the exhaust passage at a position upstream of the reducing catalyst.
Denso Corporation

Reverse flow hydrocarbon trap

A reverse flow hydrocarbon trap is provided that improves the conversion of hydrocarbons present in the exhaust gases of a vehicle to more environmentally benign compounds during cold engine starts. The trap includes a substrate having at least one exhaust gas passage therethrough, with the walls of the exhaust gas passage including a hydrocarbon trapping material and an oxidative catalyst.
Ford Global Technologies, Llc

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

Described is a selective catalytic reduction catalyst comprising a zeolitic framework material of silicon and aluminum atoms, wherein a fraction of the silicon atoms are isomorphously substituted with a tetravalent metal. The catalyst can include a promoter metal such that the catalyst effectively promotes the reaction of ammonia with nitrogen oxides to form nitrogen and h2o selectively over a temperature range of 150 to 650° c.
Basf Corporation

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

Exhaust gas purification catalyst and exhaust gas purification method using said catalyst

As a way to suppress deterioration of catalytic performance in an exhaust gas purification catalyst even after being exposed to an exhaust gas containing a phosphorus compound, an exhaust gas purification catalyst is provided. The catalyst purifies an exhaust gas containing a phosphorus compound, and the catalyst includes a catalyst layer containing rhodium (rh), palladium (pd), and either a ceria-zirconia-lanthana complex oxide or a ceria-zirconia-lanthana-yttria complex oxide as catalyst active components.
Umicore Shokubai Japan Co., Ltd.

Exhaust gas treatment apparatus

An exhaust gas treatment apparatus which can reduce nox (nitrogen oxide) produced as a by-product at the time of treating an exhaust gas by applying a three-way catalytic process is disclosed. The exhaust gas treatment apparatus has an oxidative decomposition unit configured to oxidatively decompose an exhaust gas and an exhaust gas cleaning unit configured to clean the exhaust gas after oxidative decomposition.
Ebara Corporation

Emissions reduction for co2 capture

Systems and processes for reducing carbon capture emissions are described. The process involves introducing a radical species into a decarbonized combustion gas.
Fluor Technologies Corporation

Fuel cell module

A fuel cell module includes a fuel cell stack, a reformer, and an exhaust gas combustor. The fuel cell stack has an oxygen-containing exhaust gas channel and a fuel exhaust gas channel at one end in a stacking direction of fuel cells.
Honda Motor Co., Ltd.

Flow deflector

The present invention relates to a device for deflecting coolant fluid flow in a heat exchanger, particularly a heat exchanger of an egr (exhaust gas recirculation) system, better cooling of the fluid to be cooled and flowing through the bundle of tubes of said heat exchanger being obtained.. .
Borgwarner Emissions Systems Spain, S.l.u.

Method and device for treating exhaust gases

The present invention relates to a method for treating exhaust gases containing nitrogen oxide from technical processes, such as fume gases, for the purpose of removing or precipitationg the nitrogen oxide and/or for the purpose of reducing the nitrogen oxide content, in particular by chemically reducing the nitrogen oxide.. .
Mehldau & Steinfath Umwelttechnik Gmbh

Combustion apparatus having intake air/exhaust air heat exchanger

The present invention relates to a combustion apparatus having an intake air/exhaust air heat exchanger. The combustion apparatus comprises: a burner for generating exhaust gas; a blower for supplying external air to the burner; a main heat exchanger for absorbing heat from the exhaust gas generated by the burner; an exhaust gas duct for discharging the exhaust gas having passed the main heat exchanger to the outside; an intake air duct for introducing external air to the blower; an intake air/exhaust air heat exchanger for exchanging heat between the external air introduced to the blower and the exhaust gas discharged through the exhaust gas duct using a thin film plate disposed therebetween; and an exhaust flue for discharging the exhaust gas having passed the intake air/exhaust air heat exchanger to the outside..
Kyungdong Navien Co., Ltd.

Multi-stage duct fired heat recovery steam generator and methods of use

A high efficiency multi-stage duct fired heat recovery steam generator (hrsg) is provided to generate steam for use in thermal enhanced oil recovery (eor) applications. The hrsg is equipped with a plurality of duct burners in series and a plurality of evaporators for transferring heat from the duct burners to the water to generate steam, with at least one evaporator corresponding to each of the duct burners.
Chevron U.s.a. Inc.

Systems and methods for boost control

Methods and systems are provided for reducing turbo lag in an engine system configured with a cylinder dedicated for exhaust gas recirculation and distinct turbines coupled to the dedicated egr cylinder and remaining engine cylinders. An air-fuel ratio of combustion in the dedicated cylinder is adjusted responsive to a tip-in event by providing blow-through air and additional fuel based on the amount of heat required to spin up a turbine coupled to the dedicated cylinder and provide the requested boost pressure.
Ford Global Technologies, Llc

Multi-stage turbocharger system

A turbocharger system comprises a first relatively small high-pressure (hp) turbocharger and a second relatively large low pressure (lp) turbocharger. The turbine of the lp turbocharger is connected in series downstream of the turbine of the hp turbocharger.
Cummins Turbo Technologies Limited

Exhaust gas recirculation control device and exhaust gas recirculation control internal combustion engine

When an egr control valve is fixed and a valve opening degree egrvo of the egr control valve is greater than a valve-opening threshold value egrvoth, a limit value qlim of the intake air amount is set to a prescribed amount qlim1. Conversely when the egr control valve is fixed and the valve opening degree egrvo of the egr control valve is less than or equal to the valve-opening threshold value egrvoth, the limit value qlim of the intake air amount is set to a prescribed amount qlim2..
Nissan Motor Co., Ltd.

Exhaust manifold with turbo support

An exhaust manifold includes an inner assembly that defines an exhaust gas passage and an outer housing assembly that surrounds the inner assembly. The outer housing assembly includes a first housing component configured for attachment to an engine and a second housing component configured for attachment to a turbocharger.
Faurecia Emissions Control Technologies, Usa, Llc

Dpf system with venturi exhaust passage devices

A dpf system including a venturi exhaust passage device, in which a temperature and a pressure in a high pressure passage are measured, together with a difference of pressures in the high pressure passage and a low pressure passage, while a pressure drop across a dpf is monitored. A pm amount and an exhaust flow rate, which are key parameters in dpf control, can be calculated with the measured values.

Heat exchange unit

A heat exchange unit (214) arranged to be used to recover energy from exhaust gas, the heat exchange unit (214) comprising a gas inlet duct (222) to which a heat exchange duct (216) is connected, wherein a heat exchange array (752, 754) of a heat exchange system is situated within the heat exchange duct (216) surrounding a maintenance duct and wherein the maintenance duct (226) is arranged to allow access for inspection and/or maintenance of at least part of the heat exchange system.. .
Heat Recovery Solutions Limited

Method for operating a drive device and corresponding drive device

A method for operating a drive device includes heating a hot air stream with a heating device integrated in a cylinder head of an internal combustion engine of the drive device, wherein the internal combustion engine is connected with an exhaust gas system; mixing the hot air stream upstream of a catalytic converter with a cold fresh air stream for adjusting a defined temperature of the hot air stream; and supplying the hot air stream having the adjusted defined temperature to the catalytic converter in at least one operating state of the internal combustion engine so as to heat the catalytic converter.. .
Audi Ag

Exhaust gas purification device

An exhaust gas purification device comprises a first channel member that forms an exhaust gas flow path leading to a catalyst and a second channel member that forms a reducing agent flow path guiding a reducing agent injected by an injector to the exhaust gas flow path upstream of the catalyst. The second channel member is inserted so as to penetrate a side wall of the first channel member to protrude into the exhaust gas flow path..
Futaba Industrial Co., Ltd.

Exhaust gas purification device

An exhaust gas purification device comprises a catalyst disposed to the exhaust-gas flow path, and an inhibiting member that is disposed downstream of the catalyst in the exhaust-gas flow path, and diminishes a bias in flow-rate distribution of exhaust gases that flow into the catalyst by inhibiting a partial flow of the exhaust gases that flowed out of the catalyst, wherein the inhibiting member comprises a concave part comprising a concave shape facing the catalyst, and inhibits, by the concave part, a partial flow of the exhaust gases that flowed out of the catalyst.. .
Futaba Industrial Co., Ltd.

Exhaust purification system of internal combustion engine

In an internal combustion engine, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged in an engine exhaust passage. As rich control for making the air-fuel ratio of the exhaust gas which flows into the exhaust purification catalyst (13) rich, cylinder rich control for generating rich air-fuel ratio combustion gas in the cylinder and exhaust rich control for feeding hydrocarbons from the hydrocarbon feed valve (15) to make air-fuel ratio of the exhaust gas rich are used.
Toyota Jidosha Kabushiki Kaisha

Reagent injection system for exhaust of turbine system

A reagent injection system for a catalytic emissions reduction assembly of a combustion turbine that includes an exhaust duct and at least one injector. The exhaust duct includes a first section including an entrance end and an exit end, wherein the entrance end is configured to be fluidly coupled to the combustion turbine to receive exhaust gases therefrom.
Lp Amina Llc

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

Abnormality detection system of internal combustion engine (as amended)

A straight-flow exhaust purification catalyst (13) and a hydrocarbon supply valve (15) are arranged in the engine exhaust passage of an internal combustion engine. A region which is a limited portion of the upstream-side end-surface peripheral part of the exhaust gas purification catalyst (13), where there is a possibility of clogging due to deposition oh fine particles in the exhaust gas, is predicted to be a fine particle deposition region, and an air-fuel ratio sensor (23) is arranged within an exhaust gas circulation region, which is downstream from the downstream-side end-surface peripheral part of the exhaust purification catalyst (13) and is downstream from the fine particle deposition region when viewed along the longitudinal axis of the exhaust purification catalyst.
Toyota Jidosha Kabushiki Kaisha

Method of operating an internal combustion engine

A method of regenerating an oxidation device (3) of an internal combustion engine (1), in particular a stationary internal combustion engine, wherein the oxidation device (3) is connected downstream of the internal combustion engine (1) and wherein a mixture of combustion gas and exhaust gas can be fed to the oxidation device (3) to increase a temperature in the oxidation device (3) and wherein exhaust gas can be passed around the oxidation device (3) by way of a bypass conduit (4), wherein the amount of exhaust gas passed around the oxidation device (3) by way of the bypass conduit (4) is controlled in open-loop or closed-loop control mode in dependence on an ascertained exhaust gas temperature downstream of the oxidation device (3).. .
Ge Jenbacher Gmbh & Co Og

Exhaust system for a vehicle

An exhaust system for a vehicle includes a passageway, a selective catalytic reduction system, a diesel particulate filter, a urea injection system, and a hydrolysis catalyst. The passageway is operable to direct a flow of exhaust gas emitted from an engine of the vehicle.





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