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公开(公告)号：US09470129B2
公开(公告)日：2016-10-18
申请号：US14598925
申请日：2015-01-16
Applicant: Cummins Emission Solutions, Inc.
Inventor： Andrew Myer , John Heichelbech , Stephanie Apewokin , Stephen Holl , James F. Burke
CPC classification number: F01N3/2006 , F01N3/2066 , F01N2610/02 , F01N2610/105 , F01N2900/1811 , F01P2060/00 , Y02A50/2325 , Y02T10/24
Abstract: A reductant delivery system is provided for delivery of reductant to an engine exhaust aftertreatment system that is heated during cold temperature conditions. A heat exchange fluid flows through a heat exchange circuit that provides a flow path from the heat source to the doser, from the doser to the reductant storage tank, and from the reductant storage tank to the heat source. A control valve controls the flow of the heat exchange fluid in the heat exchange circuit so that at least one heat exchange cycle includes a circulation period that increases the temperature of the reductant in the doser and storage tank and a termination period where circulation is stopped until reductant temperature in the doser reaches a lower limit.
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Patent Agency Ranking
公开(公告)号：US09938875B2
公开(公告)日：2018-04-10
申请号：US15213744
申请日：2016-07-19
Applicant: Cummins Emission Solutions, Inc.
Inventor： Andrew Myer , Chetan Ponnathpur , John Heichelbech , George Muntean , Stephen Holl , James F. Burke , John Anthis , Joydeep Chakrabarti , Brandon Simmons , Niklas Schmidt , Yogesh V. Birari
CPC classification number: 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
Abstract: 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.
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公开(公告)号：US20150128569A1
公开(公告)日：2015-05-14
申请号：US14598925
申请日：2015-01-16
Applicant: Cummins Emission Solutions, Inc.
Inventor： Andrew Myer , John Heichelbech , Stephanie Apewokin , Stephen Holl , James F. Burke
IPC: F01N3/20
CPC classification number: F01N3/2006 , F01N3/2066 , F01N2610/02 , F01N2610/105 , F01N2900/1811 , F01P2060/00 , Y02A50/2325 , Y02T10/24
Abstract: A reductant delivery system is provided for delivery of reductant to an engine exhaust aftertreatment system that is heated during cold temperature conditions. A heat exchange fluid flows through a heat exchange circuit that provides a flow path from the heat source to the doser, from the doser to the reductant storage tank, and from the reductant storage tank to the heat source. A control valve controls the flow of the heat exchange fluid in the heat exchange circuit so that at least one heat exchange cycle includes a circulation period that increases the temperature of the reductant in the doser and storage tank and a termination period where circulation is stopped until reductant temperature in the doser reaches a lower limit.
Abstract translation: 提供还原剂输送系统用于将还原剂输送到在低温条件下被加热的发动机排气后处理系统。 热交换流体流过热交换回路，其提供从加热器到加料器的流动路径，从加料器到还原剂储罐以及从还原剂储罐到热源。 控制阀控制热交换回路中的热交换流体的流动，使得至少一个热交换循环包括增加加料器和储罐中的还原剂的温度的循环周期以及循环停止的终止时间，直至 加料器中的还原剂温度达到下限。
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公开(公告)号：US20140250873A1
公开(公告)日：2014-09-11
申请号：US13782061
申请日：2013-03-01
Applicant: Cummins Emission Solutions Inc.
Inventor： Andrew Myer , John Heichelbech , Stephanie Apewokin , Stephen Holl , James F. Burke
IPC: F01N3/20
CPC classification number: F01N3/2006 , F01N3/2066 , F01N2610/02 , F01N2610/105 , F01N2900/1811 , F01P2060/00 , Y02A50/2325 , Y02T10/24
Abstract: A reductant delivery system is provided for delivery of reductant to an engine exhaust aftertreatment system that is heated during cold temperature conditions. A heat exchange fluid flows through a heat exchange circuit that provides a flow path from the heat source to the doser, from the doser to the reductant storage tank, and from the reductant storage tank to the heat source. A control valve controls the flow of the heat exchange fluid in the heat exchange circuit so that at least one heat exchange cycle includes a circulation period that increases the temperature of the reductant in the doser and storage tank and a termination period where circulation is stopped until reductant temperature in the doser reaches a lower limit.
Abstract translation: 提供还原剂输送系统用于将还原剂输送到在低温条件下被加热的发动机排气后处理系统。 热交换流体流过热交换回路，其提供从加热器到加料器的流动路径，从加料器到还原剂储罐以及从还原剂储罐到热源。 控制阀控制热交换回路中的热交换流体的流动，使得至少一个热交换循环包括增加加料器和储罐中的还原剂的温度的循环周期以及循环停止的终止时段，直到 加料器中的还原剂温度达到下限。
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公开(公告)号：US08959903B2
公开(公告)日：2015-02-24
申请号：US13782061
申请日：2013-03-01
Applicant: Cummins Emission Solutions, Inc.
Inventor： Andrew Myer , John Heichelbech , Stephanie Apewokin , Stephen Holl , James F. Burke
CPC classification number: F01N3/2006 , F01N3/2066 , F01N2610/02 , F01N2610/105 , F01N2900/1811 , F01P2060/00 , Y02A50/2325 , Y02T10/24
Abstract: A reductant delivery system is provided for delivery of reductant to an engine exhaust aftertreatment system that is heated during cold temperature conditions. A heat exchange fluid flows through a heat exchange circuit that provides a flow path from the heat source to the doser, from the doser to the reductant storage tank, and from the reductant storage tank to the heat source. A control valve controls the flow of the heat exchange fluid in the heat exchange circuit so that at least one heat exchange cycle includes a circulation period that increases the temperature of the reductant in the doser and storage tank and a termination period where circulation is stopped until reductant temperature in the doser reaches a lower limit.
Abstract translation: 提供还原剂输送系统用于将还原剂输送到在低温条件下被加热的发动机排气后处理系统。 热交换流体流过热交换回路，其提供从加热器到加料器的流动路径，从加料器到还原剂储罐以及从还原剂储罐到热源。 控制阀控制热交换回路中的热交换流体的流动，使得至少一个热交换循环包括增加加料器和储罐中的还原剂的温度的循环周期以及循环停止的终止时间，直至 加料器中的还原剂温度达到下限。
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公开(公告)号：US20160326929A1
公开(公告)日：2016-11-10
申请号：US15213744
申请日：2016-07-19
Applicant: Cummins Emission Solutions, Inc.
Inventor： Andrew Myer , Chetan Ponnathpur , John Heichelbech , George Muntean , Stephen Holl , James F. Burke , John Anthis , Joydeep Chakrabarti , Brandon Simmons , Niklas Schmidt , Yogesh V. Birari
CPC classification number: 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
Abstract: 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.
Abstract translation: 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。
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