公开(公告)号：US20150107231A1

公开(公告)日：2015-04-23

申请号：US14313472

申请日：2014-06-24

Applicant: Donaldson Company, Inc.

Inventor： John Hiemstra ,  Eivind Stenersen ,  Wenzhong Zhang ,  Allan T. Hovda ,  Gary Dale Reeves ,  Josh Kundert ,  Wayne M. Wagner ,  Todd R. Taubert

IPC: F01N9/00 ,  F01N3/32 ,  F02D41/02 ,  F01N3/027

CPC classification number: F01N9/002 ,  F01N3/027 ,  F01N3/22 ,  F01N3/32 ,  F01N2560/08 ,  F01N2900/0422 ,  F01N2900/08 ,  F02D41/029 ,  F02D41/1448 ,  F02D41/222 ,  F02D2200/0812 ,  Y02T10/47

Abstract: This disclosure relates to a method for controlling a system for regenerating a diesel particulate filter. The method includes monitoring an engine run time that has lapsed since a previous regeneration event. The method also includes monitoring backpressure behind the diesel particulate filter. The method further includes triggering a regeneration flag if the engine run time that lapsed since the previous regeneration event reaches a predetermined time limit and the backpressure exceeds a minimum value.

Abstract translation: 本公开涉及一种用于控制用于再生柴油微粒过滤器的系统的方法。 该方法包括监视从先前再生事件以来已经失效的发动机运行时间。 该方法还包括监测柴油机微粒过滤器背后的背压。 该方法还包括如果从先前的再生事件到达预定的时间限制并且背压超过最小值的情况下发生的发动机运行时间，则触发再生标志。

公开(公告)号：US11840952B2

公开(公告)日：2023-12-12

申请号：US17626336

申请日：2020-06-30

Applicant: Donaldson Company, Inc.

Inventor： Matthew S. Whitten ,  Todd R. Taubert ,  Derek M. Larsen ,  Korneel De Rudder ,  Mark Thomas Brandl

IPC: F01N3/20 ,  F01N3/28 ,  F01N13/08

CPC classification number: F01N3/206 ,  F01N3/28 ,  F01N13/08

Abstract: An aftertreatment device includes flow guides disposed within a dosing conduit. Exhaust enters through a perforated region of the dosing conduit and passes through the flow guides. The flow guides induce swirling or other turbulence to mix injected reactant with the exhaust gas. Various types of flow guides include cantilevered vanes, guide passageways, and louvered openings of a second conduit. Some types of flow guides induce localized mixing to inhibit deposit formation at the doser mounting unit. Other types of flow guides induce mixing downstream of the dosing conduit.

公开(公告)号：US09273585B2

公开(公告)日：2016-03-01

申请号：US14313472

申请日：2014-06-24

Applicant: Donaldson Company, Inc.

Inventor： John Hiemstra ,  Eivind Stenersen ,  Wenzhong Zhang ,  Allan T. Hovda ,  Gary Dale Reeves ,  Josh Kundert ,  Wayne M. Wagner ,  Todd R. Taubert ,  Derek Hiemstra ,  Scott Peters

IPC: F01N3/00 ,  F01N9/00 ,  F01N3/027 ,  F01N3/22 ,  F01N3/32 ,  F02D41/02 ,  F02D41/14 ,  F02D41/22

CPC classification number: F01N9/002 ,  F01N3/027 ,  F01N3/22 ,  F01N3/32 ,  F01N2560/08 ,  F01N2900/0422 ,  F01N2900/08 ,  F02D41/029 ,  F02D41/1448 ,  F02D41/222 ,  F02D2200/0812 ,  Y02T10/47

Abstract: This disclosure relates to a method for controlling a system for regenerating a diesel particulate filter. The method includes monitoring an engine run time that has lapsed since a previous regeneration event. The method also includes monitoring backpressure behind the diesel particulate filter. The method further includes triggering a regeneration flag if the engine run time that lapsed since the previous regeneration event reaches a predetermined time limit and the backpressure exceeds a minimum value.

Abstract translation: 本公开涉及一种用于控制用于再生柴油微粒过滤器的系统的方法。 该方法包括监视从先前再生事件以来已经失效的发动机运行时间。 该方法还包括监测柴油机微粒过滤器背后的背压。 该方法还包括如果从先前的再生事件到达预定的时间限制并且背压超过最小值的情况下发生的发动机运行时间，则触发再生标志。