-
1.发明授权公开(公告)号：US11519310B2
公开(公告)日：2022-12-06
申请号：US17430645
申请日：2019-02-15
发明人： Changsheng C. Su , A. Carl McDonald, Jr. , Ramakrishna Gopal Dontha , Niklas M. Schmidt , Nathan A. Ottinger , Z. Gerald Liu , James C. Clerc , Yujun Wang
摘要： An exhaust aftertreatment system for increasing fractional efficiency of diesel or gasoline particulate filters includes a particulate filter that includes a housing and a filter substrate positioned in the housing. The filter substrate is pre-conditioned with an aqueous solution or suspension configured to decompose or evaporate in response to exposure to heat so as to precondition the filter substrate.
-
公开(公告)号：US10473013B2
公开(公告)日：2019-11-12
申请号：US14859755
申请日：2015-09-21
摘要： Various embodiments relate to a selective catalytic reduction system for treating exhaust gases of an internal combustion engine. The system includes an inlet section that receives exhaust gases from the engine. The system includes a tank storing diesel exhaust fluid (“DEF”), a pump, a valve, and an injector each in fluid communication with each other. The injector is coupled to the inlet exhaust pipe and configured to inject DEF into the exhaust gases flowing through the inlet exhaust pipe in a plurality of pulses. Each of the plurality of pulses injects a constant volume of DEF into the inlet exhaust pipe. The system further includes a controller configured to operate the pump and the valve such that a time interval between successive constant volume pulses of the plurality of pulses is varied based on a variable oxides of nitrogen content of the exhaust gases.
-
公开(公告)号：US11141696B2
公开(公告)日：2021-10-12
申请号：US16998117
申请日：2020-08-20
发明人： Randolph G. Zoran , Ryan M. Johnson , David M. Sarcona , A. Carl McDonald, Jr. , Kenneth R. Federle , John G. Buechler , Scott Lubenow , Arvind V. Harinath
摘要： A selective catalytic reduction system may include a single housing defining a single centerline axis. The selective catalytic reduction system may also include a diesel particulate filter disposed within the single housing and having a DPF center axis aligned with the single centerline axis. The selective catalytic reduction system may also include an SCR catalyst disposed within the single housing and having a center axis aligned with the single centerline axis. In some implementations, the diesel particulate filter may include one or more SiC filters. In some implementations, the SCR catalyst may include one or more extruded SCR catalysts.
-
公开(公告)号：US11286826B2
公开(公告)日：2022-03-29
申请号：US16572267
申请日：2019-09-16
摘要： Various embodiments relate to a selective catalytic reduction system for treating exhaust gases of an internal combustion engine. The system includes an inlet section that receives exhaust gases from the engine. The system includes a tank storing diesel exhaust fluid (“DEF”), a pump, a valve, and an injector each in fluid communication with each other. The injector is coupled to the inlet exhaust pipe and configured to inject DEF into the exhaust gases flowing through the inlet exhaust pipe in a plurality of pulses. Each of the plurality of pulses injects a constant volume of DEF into the inlet exhaust pipe. The system further includes a controller configured to operate the pump and the valve such that a time interval between successive constant volume pulses of the plurality of pulses is varied based on a variable oxides of nitrogen content of the exhaust gases.
-
公开(公告)号：US10786783B2
公开(公告)日：2020-09-29
申请号：US16750668
申请日：2020-01-23
发明人： Randolph G. Zoran , Ryan M. Johnson , David M. Sarcona , A. Carl McDonald, Jr. , Kenneth R. Federle , John G. Buechler , Scott Lubenow
摘要： A selective catalytic reduction system may include a single housing defining a single centerline axis. The selective catalytic reduction system may also include a diesel particulate filter disposed within the single housing and having a DPF center axis aligned with the single centerline axis. The selective catalytic reduction system may also include an SCR catalyst disposed within the single housing and having a center axis aligned with the single centerline axis. In some implementations, the diesel particulate filter may include one or more SiC filters. In some implementations, the SCR catalyst may include one or more extruded SCR catalysts.
-
公开(公告)号：US10576419B2
公开(公告)日：2020-03-03
申请号：US16124555
申请日：2018-09-07
发明人： Randolph G. Zoran , Ryan M. Johnson , David M. Sarcona , A. Carl McDonald, Jr. , Kenneth R. Federle , John G. Buechler , Scott Lubenow
摘要： A selective catalytic reduction system may include a single housing defining a single centerline axis. The selective catalytic reduction system may also include a diesel particulate filter disposed within the single housing and having a DPF center axis aligned with the single centerline axis. The selective catalytic reduction system may also include an SCR catalyst disposed within the single housing and having a center axis aligned with the single centerline axis. In some implementations, the diesel particulate filter may include one or more SiC filters. In some implementations, the SCR catalyst may include one or more extruded SCR catalysts.
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.012 秒)
