Patents by Inventor Mats Laurell
Mats Laurell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11879373Abstract: An exhaust after treatment system for a vehicle includes an exhaust outlet pipe, having a first end that is connectable to a vehicle engine, for receiving exhaust gases from said vehicle engine, and having an outlet opening at a second end, arranged to eject the outlet gases, a catalytic converter, connected to the exhaust outlet pipe; and an electric heater element which is in heat conducting contact with the catalytic converter and adapted for pre-heating the catalytic converter. The heater element is positioned downstream of the catalytic converter with respect to the first end. Upon the vehicle being started, the heater element is switched on and gases are flowed from the second end, in the direction of the first end of the exhaust outlet pipe, through the catalytic converter for a pre-set period of time prior to passing exhaust gases from the engine towards the outlet opening at the second end.Type: GrantFiled: November 30, 2022Date of Patent: January 23, 2024Assignee: Volvo Car CorporationInventors: Peter Sandberg, Mats Laurell, Niklas Löfgren
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Publication number: 20230175423Abstract: An exhaust after treatment system for a vehicle includes an exhaust outlet pipe, having a first end that is connectable to a vehicle engine, for receiving exhaust gases from said vehicle engine, and having an outlet opening at a second end, arranged to eject the outlet gases, a catalytic converter, connected to the exhaust outlet pipe; and an electric heater element which is in heat conducting contact with the catalytic converter and adapted for pre-heating the catalytic converter. The heater element is positioned downstream of the catalytic converter with respect to the first end. Upon the vehicle being started, the heater element is switched on and gases are flowed from the second end, in the direction of the first end of the exhaust outlet pipe, through the catalytic converter for a pre-set period of time prior to passing exhaust gases from the engine towards the outlet opening at the second end.Type: ApplicationFiled: November 30, 2022Publication date: June 8, 2023Inventors: Peter Sandberg, Mats Laurell, Niklas Löfgren
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Patent number: 10190466Abstract: 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. The second catalytic substrate may be of SCR type. The exhaust gas aftertreatment device includes a reductant injecting device, a pipe and an obstructing portion, where the reductant injecting device is arranged such that reductant is injectable within the pipe and the exhaust gas flow through the pipe can be controlled by the obstructing portion.Type: GrantFiled: July 10, 2018Date of Patent: January 29, 2019Assignee: Volvo Car CorporationInventors: Mats Laurell, Jan Dahlgren, Peter Sandberg, Marie Stenfeldt
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Publication number: 20180320575Abstract: 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. The second catalytic substrate may be of SCR type. The exhaust gas aftertreatment device includes a reductant injecting device, a pipe and an obstructing portion, where the reductant injecting device is arranged such that reductant is injectable within the pipe and the exhaust gas flow through the pipe can be controlled by the obstructing portion.Type: ApplicationFiled: July 10, 2018Publication date: November 8, 2018Applicant: Volvo Car CorporationInventors: Mats LAURELL, Jan DAHLGREN, Peter SANDBERG, Marie STENFELDT
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Patent number: 10107166Abstract: A catalytic converter for an internal combustion engine includes a tubular member which defines a volume within which a catalytic converter substrate is located, the volume communicates with an inlet portion for receiving exhaust gas emissions and with a first outlet portion for discharging emissions after catalytic conversion. The catalytic converter may also include a pipe member within the tubular member, which connects the inlet portion with the volume and guides emissions from the inlet portion in a first direction. The pipe member opens into a deflector member which deflects emissions into the volume in a second direction, and the catalytic converter includes a second outlet portion connected to the deflector member and a valve to control gas flow through the second outlet portion to guide emissions away from the pipe member and out of the catalytic converter prior to reaching the catalytic converter substrate when the valve is open.Type: GrantFiled: December 15, 2016Date of Patent: October 23, 2018Assignee: Volvo Car CorporationInventors: Mats Laurell, Jan Dahlgren
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Patent number: 10066529Abstract: 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. The second catalytic substrate may be of SCR type. The exhaust gas aftertreatment device includes a reductant injecting device, a pipe and an obstructing portion, where the reductant injecting device is arranged such that reductant is injectable within the pipe and the exhaust gas flow through the pipe can be controlled by the obstructing portion.Type: GrantFiled: June 22, 2015Date of Patent: September 4, 2018Assignee: Volvo Car CorporationInventors: Mats Laurell, Jan Dahlgren, Peter Sandberg, Marie Stenfeldt
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Publication number: 20170184001Abstract: A catalytic converter for an internal combustion engine includes a tubular member which defines a volume within which a catalytic converter substrate is located, the volume communicates with an inlet portion for receiving exhaust gas emissions and with a first outlet portion for discharging emissions after catalytic conversion. The catalytic converter may also include a pipe member within the tubular member, which connects the inlet portion with the volume and guides emissions from the inlet portion in a first direction. The pipe member opens into a deflector member which deflects emissions into the volume in a second direction, and the catalytic converter includes a second outlet portion connected to the deflector member and a valve to control gas flow through the second outlet portion to guide emissions away from the pipe member and out of the catalytic converter prior to reaching the catalytic converter substrate when the valve is open.Type: ApplicationFiled: December 15, 2016Publication date: June 29, 2017Inventors: Mats Laurell, Jan Dahlgren
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Patent number: 9376951Abstract: A compact exhaust gas aftertreatment device for an internal combustion engine comprises a catalytic converter, wherein the catalytic converter comprises an encapsulating member, a pipe member, an exhaust gas guiding means and two catalytic converter substrates. The exhaust gas aftertreatment device provides very good exhaust gas mixing properties. Additionally, the exhaust gas guiding means is configured to withstand thermal stress due to exposure to hot exhaust gas emissions.Type: GrantFiled: November 7, 2014Date of Patent: June 28, 2016Assignee: VOLVO CAR CORPORATIONInventors: Mats Laurell, Jan Dahlgren, Marie Stenfeldt, Peter Sandberg
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Patent number: 9341096Abstract: An exhaust gas treatment device includes at least a housing and a second exhaust gas treatment unit which is disposed at a distance from the housing and extends into the housing. The housing has an opening that is disposed laterally relative to the second exhaust gas treatment unit and extends laterally at least across 50% of the second exhaust gas treatment unit which extends into the housing. A motor vehicle having the exhaust gas treatment device is also provided.Type: GrantFiled: December 3, 2013Date of Patent: May 17, 2016Assignee: Emitec Gesellschaft fuer Emissiontechnologie mbHInventors: Rolf Brueck, Conny Johansson, Mats Laurell
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Publication number: 20150377111Abstract: 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. The second catalytic substrate may be of SCR type. The exhaust gas aftertreatment device includes a reductant injecting device, a pipe and an obstructing portion, where the reductant injecting device is arranged such that reductant is injectable within the pipe and the exhaust gas flow through the pipe can be controlled by the obstructing portion.Type: ApplicationFiled: June 22, 2015Publication date: December 31, 2015Inventors: Mats LAURELL, Jan DAHLGREN, Peter SANDBERG, Marie STENFELDT
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Publication number: 20150152767Abstract: A compact exhaust gas aftertreatment device for an internal combustion engine comprises a catalytic converter, wherein the catalytic converter comprises an encapsulating member, a pipe member, an exhaust gas guiding means and two catalytic converter substrates. The exhaust gas aftertreatment device provides very good exhaust gas mixing properties. Additionally, the exhaust gas guiding means is configured to withstand thermal stress due to exposure to hot exhaust gas emissions.Type: ApplicationFiled: November 7, 2014Publication date: June 4, 2015Inventors: Mats LAURELL, Jan DAHLGREN, Marie STENFELDT, Peter SANDBERG
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Patent number: 8950175Abstract: An exhaust-gas aftertreatment device for an internal combustion engine includes a catalytic converter having a tubular member which defines a volume housing a catalytic converter substrate. The volume housing the catalytic converter substrate communicates with an inlet portion for receiving exhaust gas from the engine and with an outlet portion for discharging the exhaust gas after catalytic conversion thereof in the volume. The device further has a pipe member within the tubular member which connects the inlet portion with the volume in the tubular member and guides the exhaust gas from the inlet portion in a first direction of flow. The pipe member opens downstream into a deflector which deflects the exhaust gas into the volume of the tubular member in a second direction of flow other than the first direction of flow. Unburned liquid fuel contained in the exhaust gas is deposited on the deflector for later evaporation.Type: GrantFiled: November 8, 2011Date of Patent: February 10, 2015Assignee: Volvo Car CorporationInventors: Mats Laurell, Jan Dahlgren, Staffan Ovesson
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Patent number: 8713920Abstract: An exhaust gas treatment device includes at least a housing and a second exhaust gas treatment unit which is disposed at a distance from the housing and extends into the housing. The housing has an opening that is disposed laterally relative to the second exhaust gas treatment unit and extends laterally at least across 50% of the second exhaust gas treatment unit which extends into the housing. A motor vehicle having the exhaust gas treatment device is also provided.Type: GrantFiled: December 12, 2011Date of Patent: May 6, 2014Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbHInventors: Rolf Brück, Conny Johansson, Mats Laurell
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Publication number: 20140090364Abstract: An exhaust gas treatment device includes at least a housing and a second exhaust gas treatment unit which is disposed at a distance from the housing and extends into the housing. The housing has an opening that is disposed laterally relative to the second exhaust gas treatment unit and extends laterally at least across 50% of the second exhaust gas treatment unit which extends into the housing. A motor vehicle having the exhaust gas treatment device is also provided.Type: ApplicationFiled: December 3, 2013Publication date: April 3, 2014Applicant: EMITEC GESELLESCHAFT FUER EMISSIONSTECHNOLOGIE MBHInventors: ROLF Brück, CONNY JOHANSSON, MATS LAURELL
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Publication number: 20120198838Abstract: An exhaust gas treatment device includes at least a housing and a second exhaust gas treatment unit which is disposed at a distance from the housing and extends into the housing. The housing has an opening that is disposed laterally relative to the second exhaust gas treatment unit and extends laterally at least across 50% of the second exhaust gas treatment unit which extends into the housing. A motor vehicle having the exhaust gas treatment device is also provided.Type: ApplicationFiled: December 12, 2011Publication date: August 9, 2012Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBHInventors: ROLF BRÜCK, CONNY JOHANSSON, MATS LAURELL
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Publication number: 20120110989Abstract: An exhaust-gas aftertreatment device for an internal combustion engine is contemplated. The device may comprises a catalytic converter, wherein the catalytic converter comprises a tubular member which defines a volume within which a catalytic converter substrate is located, and wherein the volume with the catalytic converter substrate communicates with an inlet portion for receiving exhaust gas emissions from the internal combustion engine and with an outlet portion for discharging the exhaust gas emissions after catalytic conversion thereof in the volume.Type: ApplicationFiled: November 8, 2011Publication date: May 10, 2012Applicant: VOLVO CAR CORPORATIONInventors: Mats Laurell, Jan Dahlgren, Staffan Ovesson
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Patent number: 6119447Abstract: The invention relates to an arrangement for determining the oxygen buffer capacity in a catalytic converter (1) of an exhaust system. The arrangement includes an oxygen sensor (3, 32, 33) located downstream of at least one converter matrix (30, 31), where the sensor (3, 32, 33) supplies an input signal to a fuel injection control unit (4). The arrangement includes an analyzer circuit (13) for determining time information (TP) about the fluctuation of said input signal (25, 26), and calculating means for calculating the oxygen buffer capacity based on said time information (TP) when the downstream sensor is used to provide a primary control input signal (26). The invention also relates to a method of determining the buffer capacity.Type: GrantFiled: February 24, 1998Date of Patent: September 19, 2000Assignee: AB VolvoInventors: Soren Eriksson, Ronald Hedstrom, Ove Hjortsberg, Mats Laurell