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Class 60/300 - Having a means for heating the catalyst


Subclass of Class 60 - Power plants
Definition: Apparatus with an external means for supplying heat to the
No. of patents: 443
Last issue date: 02/14/2012


1                      
NumberTitleIssue Date
8112990Low exhaust temperature electrically heated particulate matter filter system
A system includes a particulate matter (PM) filter, a sensor, a heating element, and a control module. The PM filter includes with an upstream end that receives exhaust gas, a downstream end and multiple zones. The sensor detects a temperature of the exhaust gas. Th...
02/14/2012
8082732Device for admixing a reducing agent into an exhaust gas flow of an internal combustion engine
A device is provided for admixing a reducing agent into an exhaust gas flow of an internal combustion engine having an exhaust system and a dosing device for feeding the reducing agent into the exhaust system. At least one heating rib, heatable by the exhaust gas an...
12/27/2011
7810320Atmospheric temperature detecting apparatus and exhaust emission purification apparatus
An intake air temperature detected by an airflow sensor is corrected based on a rotation speed of an engine and a fuel supply amount to thereby estimate an atmospheric temperature. The atmospheric temperature is estimated by calculating a dynamic temperature error c...
10/12/2010
7523606Parasitic load control system for exhaust temperature control
A parasitic load control system is provided. The system may include an exhaust producing engine and a fuel pumping mechanism configured to pressurize fuel in a pressure chamber. The system may also include an injection valve configured to cause fuel pressure to buil...
04/28/2009
7442346Device for the purification of exhaust gas
As a device for the purification of exhaust gas, a three-way catalyst A purifying hydrocarbon, carbon monoxide and nitrogen oxide in the vicinity of theoretical air-fuel ratio is disposed at an upstream side of the exhaust gas and an adsorption catalyst B provided w...
10/28/2008
7421839Exhaust emission control device
Attained is a heat generative exhaust emission control device with less electric power consumption and with no harmful gas discharged to atmosphere. A porous filter body 7 for capturing particulates in exhaust gas 2 through passing of the exhaus...
09/09/2008
7412821Control apparatus for internal combustion engine
An engine ECU executes a program including the step of performing an operation for rapid catalyst warm-up, under the conditions that an engine is started and rapid catalyst warm-up is necessary, by setting the ratio of fuel injection by an in-cylinder injector to be...
08/19/2008
7407036Muffler for compact combustion engines
To provide a muffler for a compact combustion engine, which is simple in structure and effective to sufficiently reduce the temperature of exhaust gases while avoiding contact with an external air, an exhaust guide passage 7 for communicating the exhaust gase...
08/05/2008
7399452Meander-type catalytic converter
To provide an exhaust system (100) for an internal combustion engine having a housing (10) in which there are provided at least one exhaust inlet port (15b) and another exhaust discharge port (15a), and a catalyst element (
07/15/2008
7398644System and method for reducing NOx emissions in an apparatus having a diesel engine
In a mechanical apparatus having a diesel engine including a combustion chamber, the mechanical apparatus also having an aftertreatment device configured to treat emissions from the diesel engine and an intake valve for passing air into the combustion chamber, a met...
07/15/2008
7380637Exhaust-gas muffler
The invention is directed to an exhaust-gas muffler (1) of a handheld work apparatus driven by an internal combustion engine. The exhaust-gas muffler (1) includes a muffler housing (2) which includes an engine-end wall (3) having an inlet...
06/03/2008
7377102Device and method for heating exhaust gas
A device and method for heating exhaust gas from the combustion of fossil fuel upstream of an emissions control device, especially a diesel particulate filter. A conduit receives an exhaust gas flow, and is in fluid communication with the emissions control device fo...
05/27/2008
7370470Method for increasing the exhaust gas temperature of internal combustion engines
A method for increasing the exhaust gas temperature of internal combustion engines, particularly for driving a motor vehicle under load in order to reach the necessary regeneration temperature of at least one component of an exhaust gas post-treatment system, has th...
05/13/2008
7367179Method and device for operating an internal combustion engine having a catalytic converter
A method and a device for operating an internal combustion engine having a catalytic converter are described making it possible to heat the catalytic converter more quickly. An additional load of the internal combustion engine is applied to heat the catalytic conver...
05/06/2008
7363906Control system for internal combustion engine
A control system for an internal combustion engine, which can determine just enough amounts of demanded combustion fuel and auxiliary fuel during execution of auxiliary fuel supply, for improvement of fuel economy and drivability and the emission-reducing capability...
04/29/2008
7354474Dry dust filter for using in operations endangered by gases
The invention related to dust filters (1) which are especially used in operations endangered by gases and comprise filter elements (10) rendered antistatic by means of derivative constituents such as carbon fibres, salts or special steel fibres (26,...
04/08/2008
7338642Exhaust gas purification device for engine
A main particulate filter having a relatively large volume is arranged in an exhaust passage of an engine, and an auxiliary particulate filter having a relatively small volume is arranged in the exhaust passage upstream of the main particulate filter. The main and a...
03/04/2008
7325392Control system for catalytic processes
The present invention provides methods and systems for controlling a catalytic process. The control system includes: an electroconductive support having a layer of a catalyst thereon; a first electrode in contact with said electroconductive support; a second electro...
02/05/2008
7323030Apparatus and method for an exhaust aftertreatment device
An internally insulated exhaust aftertreatment device with a converter body, an end cone assembly and a sealing device inserted in an annular area between the external shell and the substrate of the converter body. The sealing device is sealingly engaged between an ...
01/29/2008
7320778High-performance catalyst support
A catalyst support is formed of a monolith having corrugated metal leaves. The corrugations of each leaf are oblique relative to the edges of the leaf. Each leaf extends from an interior region to an exterior region, and has corrugations that are non-parallel to the...
01/22/2008
7293405Multi-cylinder internal combustion engine and method for operation thereof
In a multi-cylinder internal combustion engine and a method for operating a multi-cylinder internal combustion engine, cylinders are assigned an exhaust line and, in each case, a gas inlet valve and a gas outlet valve which are used for the charge cycle. At least on...
11/13/2007
7290627Extended range motor vehicle having ambient pollutant processing
A hybrid motor vehicle utilizing electric motor propulsion prior to cruise mode detection condition and internal combustion engine propulsion during cruise mode. The hybrid motor vehicle utilizing an information super highway for system diagnostics or operating mode...
11/06/2007
7284368Computer device to control operation during catalyst desulfurization to preserve catalytic function
A system is described for improving engine and vehicle performance by considering the effects of exhaust conditions on catalyst particle growth. Specifically, engine operation is adjusted to reduce operating in such conditions, and a diagnostic routine is described ...
10/23/2007
7284365Electric heated catalyst failure diagnostic device
It is an object to provide an electric heated catalyst failure diagnostic device that is compact, lightweight, inexpensive, and can accurately detect a disconnection of the heater and an abnormality in a circuit from the power supply to the heater with a simple conf...
10/23/2007
7284367Control apparatus of internal combustion engine
The ignition timing is sustained at an initial value during a predetermined time beginning at a start of an engine, and is retarded after the predetermined time is elapsed to heat a catalyst at an early time. The predetermined time ends when the negative pressure of...
10/23/2007
7261865Heatable honeycomb body with two different coatings
An electrically heatable honeycomb body, in particular for cleaning exhaust gas originating in an internal combustion engine. The honeycomb body has at least two zones arranged in series in the flow direction with different coatings. The honeycomb body preferably ha...
08/28/2007
7261086Fast warm-up of diesel aftertreatment system during cold start
Intake air is severely restricted during cold start of a diesel engine to provide high engine-out exhaust gas temperatures and quickly heat exhaust treatment devices. Cylinder pressures are maintained substantially below the pressure of the ambient atmosphere during...
08/28/2007
7252806Flue gas conversion apparatus and method
An apparatus and method of converting flue gases produced by a fossil fuel burning furnace boiler is disclosed. The flue gas is separated into its constituent parts by cooling and filtering. Carbon dioxide, the main constituent, is then converted to carbon monoxide ...
08/07/2007
7247185Device for treatment of a gas flow
Device for treatment of a gas flow having at least one body (3) that is adapted to cause a conversion in the composition of the gas. The device is characterized in that the body (3) has a modular construction comprising a plurality of sections (26, ...
07/24/2007
7240481Engine load control for reduced cold start emissions
A control system for an engine that drives an alternator includes a first module that reduces an alternator load when the engine is cranked. A second module determines a desired exhaust energy rate (EER) of the engine. The first module regulates the alternator load ...
07/10/2007
7225608System for purging sulfate from a NOx trap located in an exhaust line of a motor vehicle diesel engine
A NOx trap is associated with oxidation catalyst-forming structure integrated in a common medium, and is located in an exhaust line of a motor vehicle diesel engine. The engine can be controlled at least with a rich mixture control strategy and with lean mixture con...
06/05/2007
7216638Control of exhaust gas stoichiometry with inducted secondary air flow
A method for operating a marine engine uses four valves to control the flow of secondary air that is inducted into each of the cylinders of an engine. An oxygen sensor is disposed in an exhaust passage downstream from the cylinders and upstream from a catalytic conv...
05/15/2007
7210363Scan testable filter housing assembly for exhaust applications
A filter housing assembly for exhaust applications and method of testing the same is provided. In one embodiment, the filter housing assembly includes a housing having a filter receiving aperture, a first air flow port configured to couple the housing to an exhaust ...
05/01/2007
7207323Catalytic core reactor for thermochemical heat recovery
A fuel conversion system having an exhaust gas generator, such as an engine or a furnace, having a heated exhaust gas outlet, a reactor vessel having a heated exhaust gas inlet in fluid communication with the heated exhaust gas outlet, having a cooled exhaust gas ou...
04/24/2007
7207170Warm-up method and warm-up system for internal combustion engine
A warm-up system is provided for an internal combustion engine equipped with a CO2 absorbing and releasing agent that absorbs CO2 at a temperature in a first temperature range and releases the CO2 at a temperature in a second tempera...
04/24/2007
7181904Exhaust purification device of compression ignition type internal combustion engine
An SOx trap catalyst (11) able to trap SOx contained in exhaust gas is arranged in an engine exhaust passage upstream of an NOx storing catalyst (12). When the SOx trap rate by the SOx trap catalys...
02/27/2007
7174708Method for managing particulate filter backwashing means
A method is provided for backwashing, by heating, a particulate filter to be purified of exhaust gases (G) of an internal combustion engine (M), in particular an internal combustion engine equipping a motor vehicle (V). The method includes controlling the start-up o...
02/13/2007
7171800Exhaust gas system and method of directing a flow of exhaust gas of a vehicular internal combustion engine
An exhaust gas system of a vehicular internal combustion engine comprises a plurality of exhaust gas catalytic converters having different working temperature ranges. Depending on the temperature of the exhaust gas the latter is directed to the one or those converte...
02/06/2007
7168238Method for heating up a catalyst in combustion engines with direct fuel injection
A method for heating up a catalytic converter in internal combustion engines having gasoline direct injection is presented and has the steps: shifting the ignition toward retard; checking whether the charge of the cylinders with air exceeds a pregiven threshold; and...
01/30/2007
7165392Exhaust gas purifying system for engine
An exhaust gas purifying system for an engine, including a HC trap catalyst disposed in an exhaust passage and operative to trap HC contained in the exhaust gas, and a control unit being programmed to: upon activating the HC trap catalyst after the engine is started...
01/23/2007
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