公开(公告)号：EP3311011A1

公开(公告)日：2018-04-25

申请号：EP16727955.3

申请日：2016-06-02

Applicant: MTU Friedrichshafen GmbH

Inventor： RUSCH, Klaus ,  LEOPOLD, Raphael-David ,  WOLMAN, Hilmar ,  ZITZLER, Günter ,  SCHNEIDER, Alexander ,  SPÄDER, Tim ,  PROSPERO, Andrea ,  MARKERT, Norbert ,  NEUSCHELER, Michael ,  MANTAJ, Viktor ,  RAUTER, Michael ,  MALETIC, Boban ,  SCHOLZ, John ,  CHATTERJEE, Daniel

IPC: F01N3/023

CPC classification number: F01N3/0232 ,  F01N3/0222 ,  F01N9/002 ,  F01N2900/1606 ,  F01N2900/1611 ,  Y02T10/47

Abstract: A method for execution with an exhaust-gas particle filter (9) which is operated with an exhaust-gas aftertreatment system (5), wherein the exhaust-gas particle filter (9) has a filter wall (13) along which exhaust gas is conducted for filtering purposes; wherein the method comprises a regeneration phase with the steps: a) setting a soot load on the exhaust-gas particle filter (9), wherein the set soot load effects the formation of a soot layer on ash deposited on the filter wall (13); and b) subsequently mobilising the deposited ash by burning off the formed soot layer during the course of an active regeneration of the exhaust-gas particle filter (9).

公开(公告)号：EP2981692B1

公开(公告)日：2018-02-28

申请号：EP13731488.6

申请日：2013-04-03

Applicant: VOLVO LASTVAGNAR AB ,  Volvo Truck Corporation

Inventor： IOJOIU, Eduard Emil ,  POURRET, Raphaël ,  PETERSSON, Martin ,  HÄGGENDAL, Björn ,  DAHL, Johan

IPC: F01N9/00 ,  F02D41/02 ,  F01N3/023 ,  F01N3/027

CPC classification number: F01N3/2006 ,  F01N3/023 ,  F01N3/0231 ,  F01N3/0232 ,  F01N3/027 ,  F01N3/035 ,  F01N3/103 ,  F01N3/2066 ,  F01N9/002 ,  F01N9/005 ,  F01N13/009 ,  F01N2240/16 ,  F01N2900/0412 ,  F01N2900/0418 ,  F01N2900/0422 ,  F01N2900/0601 ,  F01N2900/0602 ,  F01N2900/08 ,  F01N2900/1404 ,  F01N2900/1602 ,  F01N2900/1606 ,  F01N2900/1621 ,  F02D41/029 ,  F02D41/1467 ,  F02D2041/1433 ,  F02D2200/0812 ,  Y02T10/47

Abstract: A process for regenerating an exhaust gas after-treatment device adapted to be fitted in an exhaust line of an internal combustion engine arrangement, wherein the exhaust gas after-treatment device comprises a particle filter, characterized in that the process comprising the steps of : a) setting the temperature of the exhaust gases at the particle filter within a first temperature range comprised between 420 and 550 degrees Celsius; b) maintaining the temperature of the exhaust gases at the particle filter at the first temperature range during a first period of time; c) after the first period of time, further gradually increasing the temperature at the particle filter to a second temperature range which is over 550° degrees Celsius. The temperature at the particle filter is increased at a controlled rate of temperature increase over time. The temperature at the particle filter is increased at a rate of temperature increase over time which decreases over time.

公开(公告)号：EP3283740A1

公开(公告)日：2018-02-21

申请号：EP16717779.9

申请日：2016-04-11

Applicant: Illinois Valley Holding Company

Inventor： BAILEY, Brett

IPC: F01N3/021 ,  F01N3/023 ,  F01N3/035 ,  F01N3/08 ,  F01N3/20 ,  F01N13/00

CPC classification number: F01N3/035 ,  F01N3/021 ,  F01N3/0232 ,  F01N3/0233 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/2006 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/0097 ,  F01N2570/14 ,  F01N2900/1602 ,  Y02A50/2325 ,  Y02T10/24

Abstract: An engine system includes a compression ignition diesel engine connected with an aftertreatment system. A source of diesel fuel, which may have a high sulfur content, is fluidly connected to the engine. The aftertreatment system includes a particle trap fluidly positioned between the engine and the tailpipe, and an SCR catalyst fluidly positioned on the particle trap or between the particle trap and the engine. The SCR catalyst is a sulfur tolerant SCR catalyst. A non-thermal particle trap regeneration system includes a valve fluidly positioned between a particulate volume and an inlet to the particle trap. A reductant system has a doser positioned, possibly in the exhaust manifold, to deliver a reductant into the aftertreatment system upstream from the SCR catalyst.

公开(公告)号：EP2966277B1

公开(公告)日：2017-12-06

申请号：EP14760529.9

申请日：2014-03-05

Applicant: Isuzu Motors, Ltd.

Inventor： NAGAOKA Daiji ,  NAKADA Teruo ,  YUZA Hiroyuki

IPC: F01N3/36 ,  F01N3/023 ,  F01N3/08 ,  F01N3/20 ,  F01N3/10 ,  F01N9/00 ,  F01N11/00 ,  F01N3/025 ,  F01N13/00

CPC classification number: F01N9/002 ,  F01N3/023 ,  F01N3/0232 ,  F01N3/0253 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/0885 ,  F01N3/103 ,  F01N3/2066 ,  F01N3/2073 ,  F01N3/208 ,  F01N3/36 ,  F01N9/00 ,  F01N11/002 ,  F01N13/009 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2900/1602 ,  F01N2900/1606 ,  Y02T10/24 ,  Y02T10/47

Abstract: Provided is a method of controlling an exhaust gas aftertreatment device, which can properly control timing for returning to a rich state after S purge, and timing for spraying urea water after particulate matter (PM) regeneration. A DOC (25), a NOx occlusion reduction catalyst (26), and a DPF (27) are connected to an exhaust pipe (20) of an engine (E), downstream of an exhaust pipe injector (23) provided on the exhaust pipe (20). NOx in the exhaust gas is stored by the NOx occlusion reduction catalyst (26) when an air-fuel ratio is lean. The stored NOx is reduced and purified when the air-fuel ratio is rich. When a prescribed amount of PM has accumulated in the DPF (27), the exhaust gas temperature is raised to perform PM regeneration. The exhaust gas temperature is further raised to perform S purge to purge sulfur stored in the NOx occlusion reduction catalyst (26). The rich condition is prohibited during the PM regeneration period and the S purge period. When the S purge is completed, the rich condition prohibition continues until the difference between the inlet temperature of the DOC (25) and the outlet temperature of the NOx occlusion reduction catalyst (26) becomes equal to or less than a predetermined threshold.

公开(公告)号：EP2811128A4

公开(公告)日：2015-09-02

申请号：EP12867384

申请日：2012-12-05

Applicant: DOOSAN INFRACORE CO LTD

Inventor： YUN HONGCHEOL ,  CHOI YUNJUNG

IPC: F01N3/023 ,  B01D46/00 ,  F01N9/00

CPC classification number: F01N9/002 ,  B01D46/0057 ,  F01N3/0232 ,  F01N2900/1606 ,  Y02T10/47

公开(公告)号：EP2796681A1

公开(公告)日：2014-10-29

申请号：EP12861012.8

申请日：2012-12-04

Applicant: Doosan Infracore Co., Ltd.

Inventor： YU, Jin Hwan

IPC: F01N3/023 ,  F01N9/00

CPC classification number: F01N3/023 ,  F01N3/0232 ,  F01N9/002 ,  F01N2550/04 ,  F01N2590/08 ,  F01N2900/0402 ,  F01N2900/0412 ,  F01N2900/0418 ,  F01N2900/0421 ,  F01N2900/0422 ,  F01N2900/1606 ,  F01N2900/1611 ,  Y02T10/47

Abstract: An active regeneration control device for a diesel particulate filter (DPF) according to the present invention includes: an active regeneration determining unit judging an active regeneration time of the (DPF); an active regeneration signal generating unit generating an active regeneration signal according to the decision of the active regeneration determining unit; and an active regeneration inducing unit. The active regeneration inducing unit induces the active regeneration when the active regeneration is not performed after the active regeneration signal is generated.

公开(公告)号：EP2640940A1

公开(公告)日：2013-09-25

申请号：EP11779160.8

申请日：2011-10-31

Applicant: Emitec Gesellschaft für Emissionstechnologie mbH

Inventor： SITTIG, Joachim ,  VOIT, Michael ,  KURTH, Ferdi ,  WIERES, Ludwig

IPC: F01N3/022 ,  F02M25/07

CPC classification number: B01D46/42 ,  F01N3/021 ,  F01N3/022 ,  F01N3/0232 ,  F01N3/0238 ,  F01N2330/02 ,  F01N2330/12 ,  F02M26/15 ,  Y02T10/121

Abstract: The invention relates to a particle separator (1) for treating the exhaust gases of an internal combustion engine (2), at least one metal layer (3) through which exhaust gas can flow being located in a housing (4) that comprises an inlet opening (5), an outlet opening (6) and a central axis (7). The housing is provided with at least one maintenance opening (8) that laterally penetrates the housing (4) and provides a passage (9) through to the metal layer (3). The invention discloses in particular a particle separator that can remain operational without having to be dismantled, or that autonomously remains fully open to a flow at all times.

公开(公告)号：EP2436434A3

公开(公告)日：2012-10-24

申请号：EP11183346.3

申请日：2011-09-29

Applicant: Deere & Company

Inventor： Nevin, Ryan M ,  Danan, Dou ,  Tuken, Taner ,  Triana, Antonio

IPC: B01D46/44 ,  B01D46/00 ,  F01N3/023

CPC classification number: B01D46/446 ,  B01D46/0086 ,  B01D2279/30 ,  F01N3/0232 ,  F01N2900/0422 ,  F01N2900/1611

Abstract: A method for determining the service life for a particulate filter (36) receiving products of combustion from and filter soot particles from an air breathing, fuel consuming internal combustion engine (12) including the steps of: determining normalized current pressure differential across the particulate filter (36); determining the normalized pressure differential across the particulate filter (36) for clean conditions; subtracting the clean pressure differential across the particulate filter (36) from the current pressure differential across the particulate filter (36) and dividing the time between regeneration to determine a current factor; and determining a maximum factor and comparing the current factor to the maximum factor for determining service life.

公开(公告)号：EP2128392A4

公开(公告)日：2011-02-23

申请号：EP08703199

申请日：2008-01-15

Applicant: ISUZU MOTORS LTD

Inventor： IWASHITA TAKURO ,  MURATA TETSUYA ,  SATOU HITOSHI ,  ONODERA TAKAO ,  MASHIKO TATSUO

IPC: F01N3/02 ,  B01D53/94 ,  F01N3/20 ,  F01N3/24 ,  F02D45/00

CPC classification number: F02D41/029 ,  B01D53/944 ,  B01D53/9495 ,  B01D53/96 ,  B01D2258/012 ,  F01N3/023 ,  F01N3/0232 ,  F01N9/002 ,  F01N2570/10 ,  F02D2041/228 ,  F02D2200/0812 ,  Y02T10/47

公开(公告)号：EP1702147B1

公开(公告)日：2007-09-12

申请号：EP04803226.2

申请日：2004-11-23

Applicant: DaimlerChrysler AG

Inventor： BOEGNER, Walter ,  HERTZBERG, Andreas

IPC: F01N9/00 ,  F01N3/025 ,  F02D41/02

CPC classification number: F01N3/0232 ,  F01N3/0253 ,  F01N9/002 ,  F01N13/009 ,  F01N2430/085 ,  F01N2550/04 ,  F01N2560/08 ,  F01N2560/14 ,  F02D41/029 ,  F02D2200/0812 ,  Y02T10/47

Abstract: The invention relates to a method for operating a particle filter (4) in the exhaust gas train of an internal combustion engine (1) of a motor vehicle, involving recurring soot combustion processes for the particle filter (4). According to the invention, the mass of non-combustible ash residues remaining after soot combustion is reduced in the particle filter (4) by supplying the particle filter (4) with a reducing substance along with the exhaust gas of the filter and is reacted with the ash residues such that the ash residues are chemically transformed and at least non-metal components of the ash residues are removed from the particle filter with the exhaust gas. Application: in passenger cars in particular.