Patents by Inventor Jeffrey W. DENTON
Jeffrey W. DENTON 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: 10711677Abstract: A mixer assembly for mixing an injected reductant with an exhaust gas output from a combustion engine comprises a mixer housing including a wall defining an exhaust passageway having a longitudinal axis. A tubular swirling device housing extends along a first axis substantially transverse to the longitudinal axis. The tubular swirling device includes a plurality of openings through which exhaust gas enters. The exhaust gas within the tubular swirling device swirls about the first axis and exits at an outlet end of the tubular swirling device. A mixing plate is positioned immediately downstream of the tubular swirling device. The mixing plate swirls the exhaust about a second axis extending parallel to the longitudinal axis.Type: GrantFiled: March 19, 2019Date of Patent: July 14, 2020Assignee: Tenneco Automotive Operating Company Inc.Inventors: Lawrence J. Noren, IV, Daniel J. Owen, Jeffrey W. Denton, Attila Kovacs, Eric A. Hein, Meng-Huang Lu, Manoj K. Sampath
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Patent number: 10427099Abstract: A mixing system for an exhaust system includes a first mixing device having a plurality of first auger blades and an inlet having a first cross-sectional area. A second mixing device is separate and downstream from the first mixing device and includes a second auger blade. The second mixing device includes an inlet having a second cross-sectional area greater than the first cross-sectional area. A flow path longitudinal centerline of the first mixing device extends at an angle to a flow path longitudinal centerline of the second mixing device. A flow path longitudinal centerline of the first mixing device intersects the second auger blade. The first mixing device is disposed within a first portion of an exhaust pipe and the second mixing device is disposed in a second portion of the exhaust pipe. The second portion has a larger cross-sectional area than the first portion.Type: GrantFiled: September 26, 2018Date of Patent: October 1, 2019Assignee: Tenneco Automotive Operating Company Inc.Inventors: Jeffrey W. Denton, Eric A. Hein, Attila Kovacs, Kevin R. Reeder, Jonar Mendoza, Gary R. Moore, Manoj K. Sampath, John R. Hardin
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Publication number: 20190211733Abstract: A mixer assembly for mixing an injected reductant with an exhaust gas output from a combustion engine comprises a mixer housing including a wall defining an exhaust passageway having a longitudinal axis. A tubular swirling device housing extends along a first axis substantially transverse to the longitudinal axis. The tubular swirling device includes a plurality of openings through which exhaust gas enters. The exhaust gas within the tubular swirling device swirls about the first axis and exits at an outlet end of the tubular swirling device. A mixing plate is positioned immediately downstream of the tubular swirling device. The mixing plate swirls the exhaust about a second axis extending parallel to the longitudinal axis.Type: ApplicationFiled: March 19, 2019Publication date: July 11, 2019Inventors: Lawrence J. NOREN, IV, Daniel J. OWEN, Jeffrey W. DENTON, Attila KOVACS, Eric A. HEIN, Meng-Huang LU, Manoj K. SAMPATH
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Patent number: 10273855Abstract: A mixer assembly for mixing an injected reductant with an exhaust gas output from a combustion engine comprises a mixer housing including a wall defining an exhaust passageway having a longitudinal axis. A tubular swirling device housing extends along a first axis substantially transverse to the longitudinal axis. The tubular swirling device includes a plurality of openings through which exhaust gas enters. The exhaust gas within the tubular swirling device swirls about the first axis and exits at an outlet end of the tubular swirling device. A mixing plate is positioned immediately downstream of the tubular swirling device. The mixing plate swirls the exhaust about a second axis extending parallel to the longitudinal axis.Type: GrantFiled: June 21, 2018Date of Patent: April 30, 2019Assignee: Tenneco Automotive Operating Company Inc.Inventors: Lawrence J. Noren, IV, Daniel J. Owen, Jeffrey W. Denton, Attila Kovacs, Eric A. Hein, Meng-Huang Lu, Manoj K. Sampath
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Publication number: 20190022583Abstract: A mixing system for an exhaust system includes a first mixing device having a plurality of first auger blades and an inlet having a first cross-sectional area. A second mixing device is separate and downstream from the first mixing device and includes a second auger blade. The second mixing device includes an inlet having a second cross-sectional area greater than the first cross-sectional area. A flow path longitudinal centerline of the first mixing device extends at an angle to a flow path longitudinal centerline of the second mixing device. A flow path longitudinal centerline of the first mixing device intersects the second auger blade. The first mixing device is disposed within a first portion of an exhaust pipe and the second mixing device is disposed in a second portion of the exhaust pipe. The second portion has a larger cross-sectional area than the first portion.Type: ApplicationFiled: September 26, 2018Publication date: January 24, 2019Inventors: Jeffrey W. DENTON, Eric A. HEIN, Attila KOVACS, Kevin R. REEDER, Jonar MENDOZA, Gary R. MOORE, Manoj K. SAMPATH, John R. HARDIN
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Publication number: 20180298802Abstract: A mixer assembly for mixing an injected reductant with an exhaust gas output from a combustion engine comprises a mixer housing including a wall defining an exhaust passageway having a longitudinal axis. A tubular swirling device housing extends along a first axis substantially transverse to the longitudinal axis. The tubular swirling device includes a plurality of openings through which exhaust gas enters. The exhaust gas within the tubular swirling device swirls about the first axis and exits at an outlet end of the tubular swirling device. A mixing plate is positioned immediately downstream of the tubular swirling device. The mixing plate swirls the exhaust about a second axis extending parallel to the longitudinal axis.Type: ApplicationFiled: June 21, 2018Publication date: October 18, 2018Inventors: Lawrence J. NOREN, IV, Daniel J. OWEN, Jeffrey W. DENTON, Attila KOVACS, Eric A. HEIN, Meng-Huang LU, Manoj K. SAMPATH
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Patent number: 10086333Abstract: A mixing system for an exhaust aftertreatment system includes a first mixing device having a plurality of first auger blades and an inlet having a first cross-sectional area. A second mixing device is separate and downstream from the first mixing device and includes a second auger blade. The second mixing device includes an inlet having a second cross-sectional area greater than the first cross-sectional area. A plurality of flow paths created by the first mixing device are recombined into a single flow path between the first and second mixing devices. A longitudinal center line of the first mixing device is offset from a longitudinal center line of the second mixing device.Type: GrantFiled: February 23, 2016Date of Patent: October 2, 2018Assignee: Tenneco Automotive Operating Company Inc.Inventors: Jeffrey W. Denton, Eric A. Hein, Attila Kovacs, Kevin R. Reeder, Jonar Mendoza, Gary R. Moore, Manoj K. Sampath, John R. Hardin
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Patent number: 10047657Abstract: A mixer assembly for mixing an injected reductant with an exhaust gas output from a combustion engine comprises a mixer housing including a wall defining an exhaust passageway having a longitudinal axis. A tubular swirling device housing extends along a first axis substantially transverse to the longitudinal axis. The tubular swirling device includes a plurality of openings through which exhaust gas enters. The exhaust gas within the tubular swirling device swirls about the first axis and exits at an outlet end of the tubular swirling device. A mixing plate is positioned immediately downstream of the tubular swirling device and includes apertures through which the exhaust gas exiting the outlet end of the tubular swirling device flows. The mixing plate swirls the exhaust about a second axis extending parallel to the longitudinal axis.Type: GrantFiled: August 15, 2017Date of Patent: August 14, 2018Assignee: Tenneco Automotive Operating Company Inc.Inventors: Lawrence J. Noren, IV, Daniel J. Owen, Jeffrey W. Denton, Attila Kovacs, Eric A. Hein, Meng-Huang Lu, Manoj K. Sampath
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Publication number: 20170342888Abstract: A mixer assembly for mixing an injected reductant with an exhaust gas output from a combustion engine comprises a mixer housing including a wall defining an exhaust passageway having a longitudinal axis. A tubular swirling device housing extends along a first axis substantially transverse to the longitudinal axis. The tubular swirling device includes a plurality of openings through which exhaust gas enters. The exhaust gas within the tubular swirling device swirls about the first axis and exits at an outlet end of the tubular swirling device. A mixing plate is positioned immediately downstream of the tubular swirling device and includes apertures through which the exhaust gas exiting the outlet end of the tubular swirling device flows. The mixing plate swirls the exhaust about a second axis extending parallel to the longitudinal axis.Type: ApplicationFiled: August 15, 2017Publication date: November 30, 2017Inventors: Lawrence J. NOREN, IV, Daniel J. OWEN, Jeffrey W. DENTON, Attila KOVACS, Eric A. HEIN, Meng-Huang LU, Manoj K. SAMPATH
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Patent number: 9784163Abstract: An exhaust aftertreatment system may include an exhaust gas passageway and a mixer assembly. The exhaust gas passageway may receive exhaust gas output from a combustion engine. The mixer assembly may be disposed along the exhaust gas passageway and may receive the exhaust gas. The mixer assembly may include a mixer housing, a mixing bowl and an injector housing. The mixing bowl may be disposed within the mixer housing and may include an outer diametrical surface that engages an inner diametrical surface of a wall of the mixer housing. The injector housing may extend through the wall and into an aperture in the mixing bowl. The aperture may define a flow path through which at least a majority of the exhaust gas entering the mixer assembly flows. The mixing bowl may include an upstream end portion having contours directing the exhaust gas toward the injector housing.Type: GrantFiled: January 20, 2016Date of Patent: October 10, 2017Assignee: Tenneco Automotive Operating Company Inc.Inventors: Lawrence J. Noren, IV, Daniel J. Owen, Jeffrey W. Denton, Attila Kovacs, Eric A. Hein, Meng-Huang Lu
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Publication number: 20160243510Abstract: A mixing system for an exhaust aftertreatment system includes a first mixing device having a plurality of first auger blades and an inlet having a first cross-sectional area. A second mixing device is separate and downstream from the first mixing device and includes a second auger blade. The second mixing device includes an inlet having a second cross-sectional area greater than the first cross-sectional area. A plurality of flow paths created by the first mixing device are recombined into a single flow path between the first and second mixing devices. A longitudinal center line of the first mixing device is offset from a longitudinal center line of the second mixing device.Type: ApplicationFiled: February 23, 2016Publication date: August 25, 2016Inventors: Jeffrey W. DENTON, Eric A. HEIN, Attila KOVACS, Kevin R. REEDER, Jonar MENDOZA, Gary R. MOORE, Manoj K. SAMPATH, John R. HARDIN
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Publication number: 20160215673Abstract: An exhaust aftertreatment system may include an exhaust gas passageway and a mixer assembly. The exhaust gas passageway may receive exhaust gas output from a combustion engine. The mixer assembly may be disposed along the exhaust gas passageway and may receive the exhaust gas. The mixer assembly may include a mixer housing, a mixing bowl and an injector housing. The mixing bowl may be disposed within the mixer housing and may include an outer diametrical surface that engages an inner diametrical surface of a wall of the mixer housing. The injector housing may extend through the wall and into an aperture in the mixing bowl. The aperture may define a flow path through which at least a majority of the exhaust gas entering the mixer assembly flows. The mixing bowl may include an upstream end portion having contours directing the exhaust gas toward the injector housing.Type: ApplicationFiled: January 20, 2016Publication date: July 28, 2016Inventors: Lawrence J. NOREN, IV, Daniel J. OWEN, Jeffrey W. DENTON, Attila KOVACS, Eric A. HEIN, Meng-Huang LU