公开(公告)号：US20220220878A1

公开(公告)日：2022-07-14

申请号：US17707312

申请日：2022-03-29

Applicant: CUMMINS INC.

Inventor： Lars Krister Henrichsen ,  Krishna P. Chilumukuru ,  Michael Haas ,  Matthew L. Anderson

IPC: F01N3/20 ,  B01D53/94 ,  F01N3/022 ,  F01N3/08 ,  F01N3/28

Abstract: An exhaust aftertreatment system includes a cross-flow selective catalytic reduction catalyst. The cross-flow selective catalytic reduction catalyst includes a housing and a substrate assembly. The substrate assembly includes a plurality of first substrate layers defining a plurality of first flow channels and a plurality of second substrate layers defining a plurality of second flow channels. The exhaust aftertreatment system includes a passive NOx adsorber. The passive NOx adsorber includes a housing. The housing includes an inlet in exhaust gas receiving communication with the plurality of first flow channels of the cross-flow selective catalytic reduction catalyst. The housing includes an outlet in exhaust gas providing communication with the plurality of second flow channels of the cross-flow selective catalytic reduction catalyst. The passive NOx adsorber includes a substrate positioned in the housing. The substrate includes a passive NOx adsorber washcoat.

公开(公告)号：US11773761B2

公开(公告)日：2023-10-03

申请号：US17090279

申请日：2020-11-05

Applicant: Cummins Inc.

Inventor： Jinyong Luo ,  Xiaobo Song ,  Colin L. Norris ,  Xing Jin ,  Matthew L. Anderson ,  Ying Yuan

IPC: F01N9/00 ,  F01N3/20

CPC classification number: F01N3/2013 ,  F01N3/2066 ,  F01N2900/104 ,  F01N2900/1404 ,  F01N2900/1411 ,  F01N2900/1602

Abstract: The enclosed disclosure relates to vehicle systems in which an engine, a particulate filter fluidly coupled with the engine, a selective catalytic reduction (SCR) system fluidly coupled with the engine downstream of the particulate filter, an electrical heating device implemented with the particulate filter, and a controller operatively coupled with the engine and the electrical heating device, are implemented. The controller can detect, when the engine is turned off, a condition for turning on the engine, detect a temperature of the particulate filter of the SCR system, activate the electrical heating device in response to the detected temperature being below a lower temperature threshold, and turn on the engine in response to the detected temperature being at or above the lower temperature threshold.

公开(公告)号：US20230392529A1

公开(公告)日：2023-12-07

申请号：US18235212

申请日：2023-08-17

Applicant: Cummins Inc.

Inventor： Jinyong Luo ,  Xiaobo Song ,  Colin L. Norris ,  Xing Jin ,  Matthew L. Anderson ,  Ying Yuan

IPC: F01N3/20

CPC classification number: F01N3/2013 ,  F01N3/2066 ,  F01N2900/1602 ,  F01N2900/1404 ,  F01N2900/1411 ,  F01N2900/104

Abstract: The enclosed disclosure relates to vehicle systems in which an engine, a particulate filter fluidly coupled with the engine, a selective catalytic reduction (SCR) system fluidly coupled with the engine downstream of the particulate filter, an electrical heating device implemented with the particulate filter, and a controller operatively coupled with the engine and the electrical heating device, are implemented. The controller can detect, when the engine is turned off, a condition for turning on the engine, detect a temperature of the particulate filter of the SCR system, activate the electrical heating device in response to the detected temperature being below a lower temperature threshold, and turn on the engine in response to the detected temperature being at or above the lower temperature threshold.

公开(公告)号：US20220136421A1

公开(公告)日：2022-05-05

申请号：US17090279

申请日：2020-11-05

Applicant: Cummins Inc.

Inventor： Jinyong Luo ,  Xiaobo Song ,  Colin L. Norris ,  Xin Jin ,  Matthew L. Anderson ,  Ying Yuan

IPC: F01N3/20

Abstract: The enclosed disclosure relates to vehicle systems in which an engine, a particulate filter fluidly coupled with the engine, a selective catalytic reduction (SCR) system fluidly coupled with the engine downstream of the particulate filter, an electrical heating device implemented with the particulate filter, and a controller operatively coupled with the engine and the electrical heating device, are implemented. The controller can detect, when the engine is turned off, a condition for turning on the engine, detect a temperature of the particulate filter of the SCR system, activate the electrical heating device in response to the detected temperature being below a lower temperature threshold, and turn on the engine in response to the detected temperature being at or above the lower temperature threshold.

公开(公告)号：US11598239B2

公开(公告)日：2023-03-07

申请号：US17707312

申请日：2022-03-29

Applicant: CUMMINS INC.

Inventor： Lars Krister Henrichsen ,  Krishna P. Chilumukuru ,  Michael Haas ,  Matthew L. Anderson

IPC: F01N3/20 ,  B01D53/94 ,  F01N3/022 ,  F01N3/08 ,  F01N3/28 ,  F01N13/00

Abstract: An exhaust aftertreatment system includes a cross-flow selective catalytic reduction catalyst. The cross-flow selective catalytic reduction catalyst includes a housing and a substrate assembly. The substrate assembly includes a plurality of first substrate layers defining a plurality of first flow channels and a plurality of second substrate layers defining a plurality of second flow channels. The exhaust aftertreatment system includes a passive NOx adsorber. The passive NOx adsorber includes a housing. The housing includes an inlet in exhaust gas receiving communication with the plurality of first flow channels of the cross-flow selective catalytic reduction catalyst. The housing includes an outlet in exhaust gas providing communication with the plurality of second flow channels of the cross-flow selective catalytic reduction catalyst. The passive NOx adsorber includes a substrate positioned in the housing. The substrate includes a passive NOx adsorber washcoat.