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1. 发明授权

US09938875B2 Urea injection systems valves 有权
公开(公告)号：US09938875B2
公开(公告)日：2018-04-10
申请号：US15213744
申请日：2016-07-19
申请人： Cummins Emission Solutions, Inc.
发明人： Andrew Myer , Chetan Ponnathpur , John Heichelbech , George Muntean , Stephen Holl , James F. Burke , John Anthis , Joydeep Chakrabarti , Brandon Simmons , Niklas Schmidt , Yogesh V. Birari
IPC分类号： F01N3/20 , F16K11/10 , F04B43/02 , F16K7/12
CPC分类号： F01N3/208 , F01N3/2066 , F01N2610/00 , F01N2610/02 , F01N2610/146 , F04B43/02 , F16K7/12 , F16K11/10 , Y02T10/24 , Y10T137/0391 , Y10T137/0396 , Y10T137/7836 , Y10T137/86815 , Y10T137/87676 , Y10T137/87684
摘要： Apparatuses and methods for urea dosing of an exhaust after treatment system are disclosed. Exemplary apparatuses include a chamber configured to receive pressurized gas at a first inlet, receive urea solution at a second inlet and provide a combined flow of pressurized gas and urea to an outlet, flow passage extending from the first inlet to a seating surface, and a valve member configured to move between an open position in which the valve member is spaced apart from the seating surface and a closed position in which the valve member contacts the seating surface. As the valve member moves from the open position to the closed position, the valve member contacts the seating surface at a first location and wipes an area of the seating surface extending from the first location in a direction toward the flow passage.

2. 发明申请

US20210079825A1 INLINE FILTER ASSEMBLY WITH PURGE VALVING 有权
公开(公告)号：US20210079825A1
公开(公告)日：2021-03-18
申请号：US16642714
申请日：2018-08-29
申请人： CUMMINS EMISSION SOLUTIONS INC.
发明人： Chetan Ponnathpur , Tushar Tej Dandu
IPC分类号： F01N3/20 , B01D53/94 , B01D35/147 , B01D29/66
摘要： An inline reductant filter assembly includes a filter housing, a filter media, and one or more valves. The filter housing is fluidly coupled to an upstream portion of a reductant line and a downstream portion of the reductant line. The filter media is positioned in the filter housing. The one or more valves are selectively movable from a first position to a second position. In the first position, the one or more valves permit fluid to flow along a first fluid flow path from the upstream portion of the reductant line, through the filter media, to the downstream portion of the reductant line. In the second position, the one or more valves prevent fluid from flowing along the first fluid flow path through the filter media.

3. 发明申请

US20160369677A1 REDUCTANT DOSING CORRECTION DURING NO DOSING PERIODS 审中-公开
标题翻译：在无任何剂量期间减少剂量校正
公开(公告)号：US20160369677A1
公开(公告)日：2016-12-22
申请号：US15184584
申请日：2016-06-16
申请人： Cummins Emission Solutions Inc.
发明人： Chetan Ponnathpur , Sarang S. Sonawane
IPC分类号： F01N3/20 , B01D53/94 , F01N11/00
摘要： A system may include a NOx sensor and a controller. The controller may be configured to interpret a value of a first parameter indicative of an amount of NOx measured by the NOx sensor and interpret a value of a second parameter for a NOx value from a look-up table. The controller may be further configured to determine a correction factor based on the value of the first parameter and the value of the second parameter and generate a dosing command based, at least in part, on the determined correction factor. In some implementations, the NOx value from the look-up table may be based on one or more operating conditions of an engine. In some implementations, the controller may be further configured to update a NOx value of the look-up table based on the determined correction factor.
摘要翻译：系统可以包括NOx传感器和控制器。控制器可以被配置为解释指示由NOx传感器测量的NOx的量的第一参数的值，并且从查找表中解释用于NOx值的第二参数的值。控制器还可以被配置为基于第一参数的值和第二参数的值来确定校正因子，并且至少部分地基于所确定的校正因子来生成计量命令。在一些实施方式中，来自查找表的NOx值可以基于发动机的一个或多个操作条件。在一些实施方案中，控制器还可以被配置为基于所确定的校正因子来更新查找表的NOx值。

4. 发明申请

US20160326929A1 UREA INJECTION SYSTEMS VALVES 有权
标题翻译： UREA注射系统阀
公开(公告)号：US20160326929A1
公开(公告)日：2016-11-10
申请号：US15213744
申请日：2016-07-19
申请人： Cummins Emission Solutions, Inc.
发明人： Andrew Myer , Chetan Ponnathpur , John Heichelbech , George Muntean , Stephen Holl , James F. Burke , John Anthis , Joydeep Chakrabarti , Brandon Simmons , Niklas Schmidt , Yogesh V. Birari
IPC分类号： F01N3/20 , F16K7/12 , F04B43/02
CPC分类号： F01N3/208 , F01N3/2066 , F01N2610/00 , F01N2610/02 , F01N2610/146 , F04B43/02 , F16K7/12 , F16K11/10 , Y02T10/24 , Y10T137/0391 , Y10T137/0396 , Y10T137/7836 , Y10T137/86815 , Y10T137/87676 , Y10T137/87684
摘要： Apparatuses and methods for urea dosing of an exhaust after treatment system are disclosed. Exemplary apparatuses include a chamber configured to receive pressurized gas at a first inlet, receive urea solution at a second inlet and provide a combined flow of pressurized gas and urea to an outlet, flow passage extending from the first inlet to a seating surface, and a valve member configured to move between an open position in which the valve member is spaced apart from the seating surface and a closed position in which the valve member contacts the seating surface. As the valve member moves from the open position to the closed position, the valve member contacts the seating surface at a first location and wipes an area of the seating surface extending from the first location in a direction toward the flow passage.
摘要翻译：公开了一种用于处理系统后排气的尿素给料装置和方法。示例性设备包括被配置为在第一入口处接收加压气体的室，在第二入口处接收尿素溶液，并且将加压气体和尿素的组合流提供给出口，从第一入口延伸到座面，流动通道阀构件构造成在阀构件与所述座表面间隔开的打开位置和阀构件接触所述座表面的关闭位置之间移动。当阀构件从打开位置移动到关闭位置时，阀构件在第一位置处接触就座表面，并且从朝向流动通道的方向擦拭从第一位置延伸的就座表面的区域。

5. 发明授权

US10801385B2 Reductant dosing correction during no dosing periods 有权
公开(公告)号：US10801385B2
公开(公告)日：2020-10-13
申请号：US15184584
申请日：2016-06-16
申请人： Cummins Emission Solutions Inc.
发明人： Chetan Ponnathpur , Sarang S. Sonawane
IPC分类号： F01N3/20 , F01N11/00 , B01D53/94 , B01D53/90
摘要： A system may include a NOx sensor and a controller. The controller may be configured to interpret a value of a first parameter indicative of an amount of NOx measured by the NOx sensor and interpret a value of a second parameter for a NOx value from a look-up table. The controller may be further configured to determine a correction factor based on the value of the first parameter and the value of the second parameter and generate a dosing command based, at least in part, on the determined correction factor. In some implementations, the NOx value from the look-up table may be based on one or more operating conditions of an engine. In some implementations, the controller may be further configured to update a NOx value of the look-up table based on the determined correction factor.

6. 发明授权

US09206723B2 NH3 emissions management in a NOX reduction system 有权
标题翻译： NOX还原体系中的NH3排放管理
公开(公告)号：US09206723B2
公开(公告)日：2015-12-08
申请号：US14141069
申请日：2013-12-26
申请人： Cummins Emission Solutions, Inc.
发明人： Chetan Ponnathpur
IPC分类号： F01N3/00 , F01N3/18 , F01N3/20 , F02D41/02 , F02D41/14 , F01N3/035
CPC分类号： F01N3/18 , F01N3/035 , F01N3/2066 , F02D41/0275 , F02D41/1446 , F02D2041/1468 , Y02T10/24
摘要： A system includes an internal combustion engine producing an exhaust gas, an aftertreatment system receiving the exhaust gas, the aftertreatment system including a particulate filter positioned upstream of an SCR catalyst component, and a urea injector operatively coupled to the aftertreatment system at a position upstream of the SCR catalyst component. The system further includes a controller that interprets an exhaust temperature value, an ambient temperature value, and a urea injection amount. The controller determines a urea deposit amount in response to the exhaust temperature value, the ambient temperature value, and the urea injection amount, and initiates a desoot regeneration event in response to the urea deposit amount. The desoot regeneration event includes operating the engine at a urea decomposition exhaust temperature.
摘要翻译：一种系统包括产生废气的内燃机，接收废气的后处理系统，所述后处理系统包括位于SCR催化剂组分上游的颗粒过滤器和在后处理系统的上游位置可操作地耦合到后处理系统的尿素喷射器 SCR催化剂组分。该系统还包括解释排气温度值，环境温度值和尿素喷射量的控制器。控制器响应于排气温度值，环境温度值和尿素喷射量来确定尿素沉积量，并且响应于尿素沉积量而启动除尘再生事件。除尘再生事件包括以尿素分解排气温度操作发动机。

7. 发明申请

US20140102080A1 NH3 EMISSIONS MANAGEMENT IN A NOX REDUCTION SYSTEM 有权
标题翻译： NH3排放管理在NOX还原系统
公开(公告)号：US20140102080A1
公开(公告)日：2014-04-17
申请号：US14141069
申请日：2013-12-26
申请人： Cummins Emission Solutions, Inc.
发明人： Chetan Ponnathpur
IPC分类号： F01N3/18
CPC分类号： F01N3/18 , F01N3/035 , F01N3/2066 , F02D41/0275 , F02D41/1446 , F02D2041/1468 , Y02T10/24
摘要： A system includes an internal combustion engine producing an exhaust gas, an aftertreatment system receiving the exhaust gas, the aftertreatment system including a particulate filter positioned upstream of an SCR catalyst component, and a urea injector operatively coupled to the aftertreatment system at a position upstream of the SCR catalyst component. The system further includes a controller that interprets an exhaust temperature value, an ambient temperature value, and a urea injection amount. The controller determines a urea deposit amount in response to the exhaust temperature value, the ambient temperature value, and the urea injection amount, and initiates a desoot regeneration event in response to the urea deposit amount. The desoot regeneration event includes operating the engine at a urea decomposition exhaust temperature.
摘要翻译：一种系统包括产生废气的内燃机，接收废气的后处理系统，所述后处理系统包括位于SCR催化剂组分上游的颗粒过滤器和在后处理系统的上游位置可操作地耦合到后处理系统的尿素喷射器 SCR催化剂组分。该系统还包括解释排气温度值，环境温度值和尿素喷射量的控制器。控制器响应于排气温度值，环境温度值和尿素喷射量来确定尿素沉积量，并且响应于尿素沉积量而启动除尘再生事件。除尘再生事件包括以尿素分解排气温度操作发动机。

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