Patents by Inventor John K. HEICHELBECH
John K. HEICHELBECH 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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Publication number: 20240110499Abstract: An aftertreatment system includes: a first exhaust gas path comprising a heater; a second exhaust gas path comprising a first decomposition chamber configured to receive reductant and a first selective catalytic reduction catalyst downstream of the first decomposition chamber; a combined exhaust gas path downstream of the first exhaust gas path and the second exhaust gas path, the combined exhaust gas path configured to receive exhaust gas from both the first exhaust gas path and the second exhaust gas path; a selector valve configured to divert the exhaust gas between the first exhaust gas path and the second exhaust gas path based on a temperature of the exhaust gas; and a controller programmed to control the selector valve.Type: ApplicationFiled: December 5, 2023Publication date: April 4, 2024Applicant: Cummins Emission Solutions Inc.Inventors: Anand Srinivasan, John K. Heichelbech
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Patent number: 11867111Abstract: An aftertreatment system includes a first exhaust gas path, a second exhaust gas path, and a selector valve configured to divert exhaust gas between the first exhaust gas path and the second exhaust gas path based on a temperature of the exhaust gas. The aftertreatment system also includes a controller programmed to control the selector valve such that the selector valve diverts at least a portion of the exhaust gas to the first exhaust gas path when the temperature of the exhaust gas is equal to or less than a predetermined temperature threshold and the selector valve diverts the exhaust gas to the second exhaust gas path when the temperature of the exhaust gas is greater than the predetermined temperature threshold. The first exhaust gas path includes a heater configured to heat the exhaust gas received in the first exhaust gas path.Type: GrantFiled: May 9, 2019Date of Patent: January 9, 2024Assignee: Cummins Emission Solutions Inc.Inventors: Anand Srinivasan, John K. Heichelbech
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Publication number: 20230326264Abstract: Systems and apparatuses include a controller including at least one processor coupled to a memory storing instructions that, when executed by the at least one processor, causes the at least one processor to: receive data indicative of at least one of a current route or of a current performance of a vehicle; correlate at least one of the current route or the current performance to a control strategy; and determine at least one of a timing or a duration of an active regeneration event for an aftertreatment system based on the correlated control strategy.Type: ApplicationFiled: November 8, 2021Publication date: October 12, 2023Applicant: Cummins Inc.Inventors: John K. Heichelbech, J. Steven Kolhouse, Sun Shuai, Di Wang, Kai Wang, Yujun Wang
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Publication number: 20230241996Abstract: The present disclosure provides systems and methods for charging multiple electric vehicles. In particular, the present disclosure provides a system having a single charger configured to connect with a plurality of electric vehicles and methods for charging one or more electric vehicles using said system. The present disclosure further provides a method for bidirectional current flow between the grid and the one or more electric vehicles.Type: ApplicationFiled: January 31, 2023Publication date: August 3, 2023Inventors: Mark N. Bays, Chetan Ponnathpur, Erik L. Piper, John P. O'Brien, Joseph E. Paquette, Dilip Ramachandran, Omkar A. Harshe, Ravikanth Pulipaka, John K. Heichelbech
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Patent number: 11708775Abstract: A filtration assembly for removing particulate matter from exhaust gas produced by an engine, including: a first filter; a second filter positioned downstream of the first filter; and a valve including: a first ring defining a plurality of first openings, and a second ring defining a plurality of second openings, the second ring abutting the first ring. The valve is moveable between a closed position in which the plurality of first openings are misaligned with the plurality of second openings to prevent a fluid from flowing through the plurality of first and second openings, and an open position in which the second ring is rotated relative to the first ring such that the plurality of first openings are aligned with the plurality of second openings allowing the fluid to flow therethrough. A first end of the valve is positioned at an outlet of the first filter, and a second end of the valve is positioned at an inlet of the second filter.Type: GrantFiled: March 22, 2022Date of Patent: July 25, 2023Assignee: Cummins Emission Solutions Inc.Inventors: Yujun Wang, John K. Heichelbech, Changsheng C. Su
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Patent number: 11480082Abstract: An aftertreatment system comprises a SCR system, a first filter, and a second filter disposed downstream of the first filter and a bypass conduit providing a flow path bypassing the second filter. A valve is operatively coupled to the bypass conduit and is moveable between a closed position in which the exhaust gas flows through the second filter, and an open position in which at least a portion of the exhaust gas flows through the bypass conduit. A controller is operatively coupled to the valve configured to adjust the valve based on a first filtration efficiency of the first filter to cause the exhaust gas expelled into the environment from the aftertreatment to have a particulate matter count meeting particulate matter emission standards.Type: GrantFiled: September 28, 2018Date of Patent: October 25, 2022Assignee: Cummins Emission Solutions Inc.Inventors: Yujun Wang, John K. Heichelbech, Changsheng C. Su
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Patent number: 11408321Abstract: An aftertreatment system comprises a first passageway having a first temperature and a second passageway having a second temperature different than the first temperature. A turbine is disposed downstream from the first passageway and upstream from the second passageway. The turbine is in fluidic communication with the first passageway and the second passageway. The turbine is structured to receive an exhaust gas from the first passageway, generate energy using the exhaust gas flowing through the turbine and communicate the exhaust gas to the second passageway. The aftertreatment system also includes an insertion device structured to insert an exhaust reductant into the first passageway. A selective catalytic reduction system is configured to receive the exhaust gas from the second passageway and treat the exhaust gas. The first temperature can be higher than the second temperature.Type: GrantFiled: June 29, 2021Date of Patent: August 9, 2022Assignee: Cummins Inc.Inventors: John K. Heichelbech, John G. Buechler, Richard J. Ancimer, Thomas M. Yonushonis
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Publication number: 20220220880Abstract: An aftertreatment system includes a first exhaust gas path, a second exhaust gas path, and a selector valve configured to divert exhaust gas between the first exhaust gas path and the second exhaust gas path based on a temperature of the exhaust gas. The aftertreatment system also includes a controller programmed to control the selector valve such that the selector valve diverts at least a portion of the exhaust gas to the first exhaust gas path when the temperature of the exhaust gas is equal to or less than a predetermined temperature threshold and the selector valve diverts the exhaust gas to the second exhaust gas path when the temperature of the exhaust gas is greater than the predetermined temperature threshold. The first exhaust gas path includes a heater configured to heat the exhaust gas received in the first exhaust gas path.Type: ApplicationFiled: May 9, 2019Publication date: July 14, 2022Applicant: Cummins Emission Solutions Inc.Inventors: Anand Srinivasan, John K. Heichelbech
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Publication number: 20220213822Abstract: A filtration assembly for removing particulate matter from exhaust gas produced by an engine, including: a first filter; a second filter positioned downstream of the first filter; and a valve including: a first ring defining a plurality of first openings, and a second ring defining a plurality of second openings, the second ring abutting the first ring. The valve is moveable between a closed position in which the plurality of first openings are misaligned with the plurality of second openings to prevent a fluid from flowing through the plurality of first and second openings, and an open position in which the second ring is rotated relative to the first ring such that the plurality of first openings are aligned with the plurality of second openings allowing the fluid to flow therethrough. A first end of the valve is positioned at an outlet of the first filter, and a second end of the valve is positioned at an inlet of the second filter.Type: ApplicationFiled: March 22, 2022Publication date: July 7, 2022Applicant: Cummins Emission Solutions Inc.Inventors: Yujun Wang, John K. Heichelbech, Changsheng C. Su
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Publication number: 20220034245Abstract: An aftertreatment system comprises a SCR system, a first filter, and a second filter disposed downstream of the first filter and a bypass conduit providing a flow path bypassing the second filter. A valve is operatively coupled to the bypass conduit and is moveable between a closed position in which the exhaust gas flows through the second filter, and an open position in which at least a portion of the exhaust gas flows through the bypass conduit. A controller is operatively coupled to the valve configured to adjust the valve based on a first filtration efficiency of the first filter to cause the exhaust gas expelled into the environment from the aftertreatment to have a particulate matter count meeting particulate matter emission standards.Type: ApplicationFiled: September 28, 2018Publication date: February 3, 2022Applicant: Cummins Emission Solutions Inc.Inventors: Yujun Wang, John K. Heichelbech, Changsheng C. Su
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Publication number: 20210324778Abstract: An aftertreatment system comprises a first passageway having a first temperature and a second passageway having a second temperature different than the first temperature. A turbine is disposed downstream from the first passageway and upstream from the second passageway. The turbine is in fluidic communication with the first passageway and the second passageway. The turbine is structured to receive an exhaust gas from the first passageway, generate energy using the exhaust gas flowing through the turbine and communicate the exhaust gas to the second passageway. The aftertreatment system also includes an insertion device structured to insert an exhaust reductant into the first passageway.Type: ApplicationFiled: June 29, 2021Publication date: October 21, 2021Applicant: CUMMINS INC.Inventors: John K. Heichelbech, John G. Buechler, Richard J. Ancimer, Thomas M. Yonushonis
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Patent number: 11060434Abstract: An aftertreatment system comprises a first passageway having a first temperature and a second passageway having a second temperature different than the first temperature. A turbine is disposed downstream from the first passageway and upstream from the second passageway. The turbine is in fluidic communication with the first passageway and the second passageway. The turbine is structured to receive an exhaust gas from the first passageway, generate energy using the exhaust gas flowing through the turbine and communicate the exhaust gas to the second passageway. The aftertreatment system also includes an insertion device structured to insert an exhaust reductant into the first passageway. A selective catalytic reduction system is configured to receive the exhaust gas from the second passageway and treat the exhaust gas. The first temperature can be higher than the second temperature.Type: GrantFiled: July 2, 2019Date of Patent: July 13, 2021Assignee: Cummins, Inc.Inventors: John K. Heichelbech, John G. Buechler, Richard J. Ancimer, Thomas M. Yonushonis
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Patent number: 10605138Abstract: An exemplary embodiment includes a blending chamber having a urea inlet, a blending chamber gas inlet, and a blending chamber outlet. A urea source provides a pressurized urea solution to the urea inlet at a urea injection pressure, and a pressurized gas source transmits pressurized gas to the blending chamber gas inlet via a passageway. The passageway is configured to decrease pressure of the pressurized gas transmitted along its length from a first pressure of gas received from the pressurized gas source to a second pressure of gas provided to the blending chamber gas inlet. The first pressure of gas received from the pressurized gas source is greater than the urea injection pressure and the second pressure of gas provided to the blending chamber gas inlet is less than the urea injection pressure.Type: GrantFiled: February 13, 2018Date of Patent: March 31, 2020Assignee: Cummins Emission Solutions Inc.Inventors: George L. Muntean, Steve Holl, Joydeep Chakrabarti, John Anthis, Joshua D. Henry, Samuel Johnson, Andrew Myer, John K. Heichelbech
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Publication number: 20190323403Abstract: An aftertreatment system comprises a first passageway having a first temperature and a second passageway having a second temperature different than the first temperature. A turbine is disposed downstream from the first passageway and upstream from the second passageway. The turbine is in fluidic communication with the first passageway and the second passageway. The turbine is structured to receive an exhaust gas from the first passageway, generate energy using the exhaust gas flowing through the turbine and communicate the exhaust gas to the second passageway. The aftertreatment system also includes an insertion device structured to insert an exhaust reductant into the first passageway. A selective catalytic reduction system is configured to receive the exhaust gas from the second passageway and treat the exhaust gas. The first temperature can be higher than the second temperature.Type: ApplicationFiled: July 2, 2019Publication date: October 24, 2019Applicant: CUMMINS INC.Inventors: John K. Heichelbech, John G. Buechler, Richard J. Ancimer, Thomas M. Yonushonis
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Patent number: 10392994Abstract: An aftertreatment system comprises a first passageway having a first temperature and a second passageway having a second temperature different than the first temperature. A turbine is disposed downstream from the first passageway and upstream from the second passageway. The turbine is in fluidic communication with the first passageway and the second passageway. The turbine is structured to receive an exhaust gas from the first passageway, generate energy using the exhaust gas flowing through the turbine and communicate the exhaust gas to the second passageway. The aftertreatment system also includes an insertion device structured to insert an exhaust reductant into the first passageway. A selective catalytic reduction system is configured to receive the exhaust gas from the second passageway and treat the exhaust gas. The first temperature can be higher than the second temperature.Type: GrantFiled: December 2, 2015Date of Patent: August 27, 2019Assignee: Cummins, Inc.Inventors: John K. Heichelbech, John G. Buechler, Richard J. Ancimer, Thomas M. Yonushonis
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Patent number: 10022667Abstract: An aftertreatment system includes a first oxidation catalyst, a second oxidation catalyst, and a turbocharger. The first oxidation catalyst is upstream of the turbocharger and includes a first oxidation catalyst formulation. The second oxidation catalyst is downstream of the turbocharger and includes a second oxidation catalyst formulation different than the first oxidation catalyst formulation. The second oxidation catalyst formulation is configured to promote conversion of nitric oxide (NO) to nitrogen dioxide (NO2).Type: GrantFiled: July 28, 2017Date of Patent: July 17, 2018Assignee: Cummins Inc.Inventors: Yuhui Zha, John K Heichelbech, Michael J. Cunningham
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Publication number: 20180028966Abstract: An aftertreatment system includes a first oxidation catalyst, a second oxidation catalyst, and a turbocharger. The first oxidation catalyst is upstream of the turbocharger and includes a first oxidation catalyst formulation. The second oxidation catalyst is downstream of the turbocharger and includes a second oxidation catalyst formulation different than the first oxidation catalyst formulation. The second oxidation catalyst formulation is configured to promote conversion of nitric oxide (NO) to nitrogen dioxide (NO2).Type: ApplicationFiled: July 28, 2017Publication date: February 1, 2018Applicant: Cummins Inc.Inventors: Yuhui Zha, John K. Heichelbech, Michael J. Cunningham
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Publication number: 20170370263Abstract: An aftertreatment system comprises a first passageway having a first temperature and a second passageway having a second temperature different than the first temperature. A turbine is disposed downstream from the first passageway and upstream from the second passageway. The turbine is in fluidic communication with the first passageway and the second passageway. The turbine is structured to receive an exhaust gas from the first passageway, generate energy using the exhaust gas flowing through the turbine and communicate the exhaust gas to the second passageway. The aftertreatment system also includes an insertion device structured to insert an exhaust reductant into the first passageway. A selective catalytic reduction system is configured to receive the exhaust gas from the second passageway and treat the exhaust gas. The first temperature can be higher than the second temperature.Type: ApplicationFiled: December 2, 2015Publication date: December 28, 2017Applicant: Cummins, Inc.Inventors: John K. Heichelbech, John G. Buechler, Richard J. Ancimer, Thomas M. Yonushonis
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Patent number: 9441518Abstract: An example system includes a diaphragm pump having a suction port and a discharge port, a urea suction line fluidly coupling a urea supply to the suction port, and a urea discharge line fluidly coupled to the discharge port. A recirculation line fluidly couples the urea discharge line to the urea suction line, and has a flow regulator operationally coupled thereto. A controller is configured to interpret a prime loss condition of the diaphragm pump, and to provide a flow regulator command in response to the prime loss condition.Type: GrantFiled: August 8, 2014Date of Patent: September 13, 2016Assignee: Cummins Emission Solutions, Inc.Inventors: Srivardhan Chandrapati, Andrew Morgan Myer, Mugdha Naik, Shu Zhang, Xin Jin, Srinivasa Varadan Rajagopalan, John K. Heichelbech, Stephen M. Holl
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Patent number: RE48525Abstract: An exemplary embodiment includes a blending chamber having a urea inlet, a blending chamber gas inlet, and a blending chamber outlet. A urea source provides a pressurized urea solution to the urea inlet at a urea injection pressure, and a pressurized gas source transmits pressurized gas to the blending chamber gas inlet via a passageway. The passageway is configured to decrease pressure of the pressurized gas transmitted along its length from a first pressure of gas received from the pressurized gas source to a second pressure of gas provided to the blending chamber gas inlet. The first pressure of gas received from the pressurized gas source is greater than the urea injection pressure and the second pressure of gas provided to the blending chamber gas inlet is less than the urea injection pressure.Type: GrantFiled: September 18, 2019Date of Patent: April 20, 2021Assignee: Cummins Emission Solutions Inc.Inventors: George L. Muntean, Steve Holl, Joydeep Chakrabarti, John Anthis, Joshua D. Henry, Samuel Johnson, Andrew Myer, John K. Heichelbech