GB2567170A - SCR system and SCR doser - Google Patents

SCR system and SCR doser Download PDF

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Publication number
GB2567170A
GB2567170A GB1716190.2A GB201716190A GB2567170A GB 2567170 A GB2567170 A GB 2567170A GB 201716190 A GB201716190 A GB 201716190A GB 2567170 A GB2567170 A GB 2567170A
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GB
United Kingdom
Prior art keywords
doser
reagent
scr
outlet
spray
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB1716190.2A
Other versions
GB201716190D0 (en
Inventor
A P Sykes Martin
R Craig Andrew
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Delphi Technologies IP Ltd
Original Assignee
Delphi Technologies IP Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Delphi Technologies IP Ltd filed Critical Delphi Technologies IP Ltd
Priority to GB1716190.2A priority Critical patent/GB2567170A/en
Publication of GB201716190D0 publication Critical patent/GB201716190D0/en
Publication of GB2567170A publication Critical patent/GB2567170A/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/02—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/02—Exhaust treating devices having provisions not otherwise provided for for cooling the device
    • F01N2260/024—Exhaust treating devices having provisions not otherwise provided for for cooling the device using a liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/20—Exhaust treating devices having provisions not otherwise provided for for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/01—Adding substances to exhaust gases the substance being catalytic material in liquid form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/11—Adding substances to exhaust gases the substance or part of the dosing system being cooled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1433—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
    • F01N2610/146—Control thereof, e.g. control of injectors or injection valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

A Selective Catalytic Reduction (SCR) doser 16 that sprays a reagent R in an exhaust pipe of an internal combustion engine comprises a body 42 extending along a main axis X. A reagent spray path 50 extends from a reagent inlet 22 to a reagent spray outlet 48 controlled by an electro-driven valve member 44. A cooling path 52 is in fluid connection with the reagent inlet. The cooling path may define an annular gallery 54 surrounding the valve member. The cooling path may be in fluid connection with a reagent outlet 24. SCR equipment arranged on an internal combustion engine comprises a tank (12, fig 1), a pump (14, fig 1), a first doser and a second doser (30, fig 1) in series connection. All the reagent flow from the pump is delivered to the reagent inlet of the first doser. A portion of the flow exits the first doser via the reagent outlet and flows to the second doser.

Description

SCR SYSTEM AND SCR DOSER
TECHNICAL FIELD
The present invention relates to a self-cooled SCR doser and a SCR system comprising such doser in an in-line system architecture.
BACKGROUND OF THE INVENTION
Because of their proximity to the exhaust pipe of an internal combustion engine, the SCR dosers of a SCR system require specific cooling. Said cooled dosers are either air cooled or liquid cooled and, in the latter dosers are provided with a supplementary cooling path often defining an annular jacket having specific inlet and outlet wherein, in use, said liquid coolant flows. Said added coolant path complexifies the doser design and the SCR system operation.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to resolve the above mentioned problems in providing a Selective Catalytic Reduction (SCR) doser adapted to spray a reagent in an exhaust pipe of an internal combustion engine. Said doser, controlled by an electro-driven valve member, has a body extending along a main axis and provided with a reagent spray path extending from a reagent inlet to at least one reagent spray outlet.
Advantageously, the SCR doser further defines a cooling path in fluid connection with said reagent inlet.
Also, inside the body the reagent path divides downstream the reagent inlet in said spray path and said cooling path.
Also, said cooling path extends to the vicinity of the reagent spray outlet.
Also, said fluid path defines an annular gallery surrounding the valve member.
Also, the spray path connects in said gallery.
Also, the SCR doser further comprises a reagent outlet distinct from the spray outlet, the cooling path being in fluid connection with said reagent outlet which enables the reagent R to flow out of the doser.
The invention further extends to a SCR equipment adapted to be arranged on an internal combustion engine, said equipment comprising a tank, a pump, a first doser and a second doser arranged in series connection, wherein said first doser is as described above. All the reagent flow sent by the pump, in use, is delivered to the reagent inlet of said first doser, a portion of said flow exiting said first doser via the reagent outlet and flowing to the second doser.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention is now described by way of example with reference to the accompanying figures where:
Figure 1 is sketch a SCR system as per the invention and,
Figure 2 is a sketch of a SCR doser of the system of figure 1.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
A powertrain system comprises an internal combustion engine and an exhaust pipe wherein exhaust gases are filtered and chemically treated to remove pollutants prior to exiting the tailpipe. The powertrain system further comprises a selective catalytic reduction system 10, hereafter SCR system 10, adapted to spray a reagent R, such as urea fluid, at an injection point of the exhaust pipe.
Engines having two or more banks of cylinders, such as V6 engines, have several exhaust pipes and thus several reagent injection points. It is also common to have reagent injection in the hot part of the exhaust pipe, upstream a particulate filter and also, in the cold part of the pipe downstream said filter.
More in details in reference to the figure 1, the SCR system 10 comprises a tank 12 storing the reagent R and a pump 14 immersed in the reagent R. Said pump is arranged to suck said reagent R and deliver it to a first doser 16 adapted to spray the reagent R at a first injection point P16 of the exhaust pipe. To flow the reagent from the pump 14 to said first doser 16, a first feed pipe 18 is connected to the pump outlet and it extends to the first doser reagent inlet 22. Said first doser 16 is also provided with a reagent outlet 24 connected to another feed pipe 26 extending to the reagent inlet 28 of a second doser 30 adapted to spray the reagent R at a second injection point P30 of the exhaust pipe.
An electronic control unit 32, ECU, electrically connected to the dosers 16, 30 delivers command signals to said dosers. Also, to avoid freezing of the reagent R, or to thaw a frozen system, heater elements are arranged in several points of the system, in the tank and over the length of the feed lines. Also, the pump 14 represented immersed in the tank may be arranged outside the tank with a suction line from its inlet to the reagent R.
The SCR system 10 has an in-line architecture, the second doser 30 receiving reagent R from the first doser 16 rather than from the pump. The fluid connection is done by the first doser 16 that is provided with said reagent inlet 22 and with said reagent outlet 24. This in-line architecture advantageously simplifies and frees the system 10 from any flow dividing elements such as connection blocks, T-junction elements, manifold, distributors arranged away from the dosers between two in a feed pipe.
The first doser 16 is now further detailed in reference to the magnified figure 2. Said first doser 16 has an elongated body 42 extending along a main axis X and, in said body 42 is housed an valve member 44 driven by an actuator 46 receiving command signals from the ECU 32. Said valve member 44 cooperates with a seat in order to control an injection nozzle, or reagent spray outlet 48, shown in an open position. The body 42 further comprises said reagent inlet 22 and reagent outlet 24 that are both arranged at a rear end of the body 42 opposite the spray outlet 48.
Between said inlet 22, outlet 24 and spray outlet 48, are defined inside said body 42 a reagent spray path 50 and a cooling path 52.
In the example shown, the cooling path 52 defines an annular gallery 54 peripherally surrounding the valve member 44, said gallery 54 axially X extends from the rear end of the body, where are fluidly connected the inlet 22 and the outlet 24, to the vicinity of the spray outlet 48. In use, the incoming reagent flow from the pump enters the doser 16 via the inlet 22, fills and circulates within said annular gallery 54 before exiting via the outlet 24 wherefrom the reagent R flows toward the second doser 30. During said passage inside the first doser 16, a heat transfer has occurred where the doser has cooled and the reagent temperature has raised.
The spray path 50 connects to the cooling annular gallery 54 in close vicinity to the doser reagent inlet 22 and, it rapidly radially extends in the doser toward the spray outlet 48.
In an alternative not shown, instead of an annular gallery, the cooling path 52 defines a channel, or a plurality of channels, extending axially or coiled around the valve member.
For simplification reasons, the reagent inlet 22 and outlet 24 are both shown on the rear end of the doser 16 away from the spray nozzle while, in another arrangement said inlet and/or outlet can be radially arranged.
In a not shown alternative the doser 16 can be the only doser on the SCR system. In this case, the doser 16 does not have a reagent outlet and it is only provided with the cooling path and the spray path, all the reagent entering the doser via the inlet 22 is finally sprayed via the spray outlet 48 after circulating in the cooling path.

Claims (7)

CLAIMS:
1. Selective Catalytic Reduction (SCR) doser (16) adapted to spray a reagent (R) in an exhaust pipe of an internal combustion engine, said doser (16) having a body (42) extending along a main axis (X) and provided with a reagent spray path (50) extending from a reagent inlet (22) to at least one reagent spray outlet (48) controlled by an electro-driven valve member (44) and wherein, said SCR doser (16) further defines a cooling path (52) in fluid connection with said reagent inlet (22).
2. SCR doser (16) as claimed in the preceding claim wherein inside said body (42) the reagent path divides downstream the reagent inlet (22) in said spray path (50) and said cooling path (52).
3. SCR doser (16) as claimed in the claim 2 wherein said cooling path (52) extends to the vicinity of the reagent spray outlet (48).
4. SCR doser (16) as claimed in claim 3 wherein said fluid path defines an annular gallery (54) surrounding the valve member (44).
5. SCR doser (16) as claimed 4 wherein the spray path (50) connects in said gallery (54).
6. SCR doser (16) as claimed in any one of the preceding claims further comprising a reagent outlet (24) distinct from the spray outlet (48), the cooling path (52) being in fluid connection with said reagent outlet (24) which enables the reagent (R) to flow out of the doser (16).
7. SCR equipment (10) adapted to be arranged on an internal combustion engine, said equipment (10) comprising a tank (12), a pump (14), a first doser (16) and a second doser (30) arranged in series connection, wherein said first doser (16) is as claimed in claim 6, all the reagent flow sent by the pump (14), in use, being delivered to the reagent inlet (22) of said first doser, a portion of said flow exiting said first doser via the reagent outlet (24) and flowing to the second doser (30).
GB1716190.2A 2017-10-04 2017-10-04 SCR system and SCR doser Withdrawn GB2567170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1716190.2A GB2567170A (en) 2017-10-04 2017-10-04 SCR system and SCR doser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1716190.2A GB2567170A (en) 2017-10-04 2017-10-04 SCR system and SCR doser

Publications (2)

Publication Number Publication Date
GB201716190D0 GB201716190D0 (en) 2017-11-15
GB2567170A true GB2567170A (en) 2019-04-10

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110266370A1 (en) * 2010-02-10 2011-11-03 Roessle Matthew L Pressure swirl flow injector with reduced flow variability and return flow
US20140116032A1 (en) * 2012-10-31 2014-05-01 Tenneco Automotive Operating Company Inc. Injector with Capillary Aerosol Generator
US20140360168A1 (en) * 2013-06-07 2014-12-11 Jeffrey Michael Broderick System and Method for Sequential Injection of Reagent to Reduce NOx from Combustion Sources
DE102014201816A1 (en) * 2014-01-31 2015-06-18 Mtu Friedrichshafen Gmbh System for dosing of reducing agent in an exhaust device of an internal combustion engine and internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110266370A1 (en) * 2010-02-10 2011-11-03 Roessle Matthew L Pressure swirl flow injector with reduced flow variability and return flow
US20140116032A1 (en) * 2012-10-31 2014-05-01 Tenneco Automotive Operating Company Inc. Injector with Capillary Aerosol Generator
US20140360168A1 (en) * 2013-06-07 2014-12-11 Jeffrey Michael Broderick System and Method for Sequential Injection of Reagent to Reduce NOx from Combustion Sources
DE102014201816A1 (en) * 2014-01-31 2015-06-18 Mtu Friedrichshafen Gmbh System for dosing of reducing agent in an exhaust device of an internal combustion engine and internal combustion engine

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COOA Change in applicant's name or ownership of the application

Owner name: DELPHI TECHNOLOGIES IP LIMITED

Free format text: FORMER OWNER: DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.A.R.L.

WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)