FR3087834B1 - INJECTOR FOR INJECTING A GAS REDUCING AGENT INTO A FLOW OF EXHAUST GAS FROM AN INTERNAL COMBUSTION ENGINE - Google Patents
INJECTOR FOR INJECTING A GAS REDUCING AGENT INTO A FLOW OF EXHAUST GAS FROM AN INTERNAL COMBUSTION ENGINE Download PDFInfo
- Publication number
- FR3087834B1 FR3087834B1 FR1859919A FR1859919A FR3087834B1 FR 3087834 B1 FR3087834 B1 FR 3087834B1 FR 1859919 A FR1859919 A FR 1859919A FR 1859919 A FR1859919 A FR 1859919A FR 3087834 B1 FR3087834 B1 FR 3087834B1
- Authority
- FR
- France
- Prior art keywords
- injector
- reducing agent
- injecting
- flow
- combustion engine
- 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.)
- Active
Links
- 239000003638 chemical reducing agent Substances 0.000 title abstract 2
- 238000002485 combustion reaction Methods 0.000 title 1
- 238000002347 injection Methods 0.000 abstract 4
- 239000007924 injection Substances 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 1
Classifications
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- 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
- 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
- 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
- F01N2240/16—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 an electric heater, i.e. a resistance heater
-
- 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
- F01N2260/08—Exhaust treating devices having provisions not otherwise provided for for preventing heat loss or temperature drop, using other means than layers of heat-insulating material
-
- 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
- F01N2510/00—Surface coverings
- F01N2510/02—Surface coverings for thermal insulation
-
- 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
- F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
-
- 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
- F01N2610/1486—Means to prevent the substance from freezing
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
L'injecteur (32) comprend une buse d'injection (34), un système de dosage (36) pour fournir un flux dosé de l'agent réducteur à la buse d'injection, et une conduite d'injection (38) reliant le système de dosage (36) à la buse d'injection (34). L'injecteur (32) comprend des moyens de chauffage agencés pour chauffer au moins une partie de l'injecteur (32).The injector (32) includes an injection nozzle (34), a metering system (36) for supplying a metered flow of the reducing agent to the injection nozzle, and an injection line (38) connecting the metering system (36) to the injection nozzle (34). The injector (32) comprises heating means arranged to heat at least part of the injector (32).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1859919A FR3087834B1 (en) | 2018-10-26 | 2018-10-26 | INJECTOR FOR INJECTING A GAS REDUCING AGENT INTO A FLOW OF EXHAUST GAS FROM AN INTERNAL COMBUSTION ENGINE |
DKPA201970655A DK181450B1 (en) | 2018-10-26 | 2019-10-21 | An injector for injecting a gaseous reducing agent into an exhaust gas stream of an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1859919A FR3087834B1 (en) | 2018-10-26 | 2018-10-26 | INJECTOR FOR INJECTING A GAS REDUCING AGENT INTO A FLOW OF EXHAUST GAS FROM AN INTERNAL COMBUSTION ENGINE |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3087834A1 FR3087834A1 (en) | 2020-05-01 |
FR3087834B1 true FR3087834B1 (en) | 2021-05-07 |
Family
ID=65444104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1859919A Active FR3087834B1 (en) | 2018-10-26 | 2018-10-26 | INJECTOR FOR INJECTING A GAS REDUCING AGENT INTO A FLOW OF EXHAUST GAS FROM AN INTERNAL COMBUSTION ENGINE |
Country Status (2)
Country | Link |
---|---|
DK (1) | DK181450B1 (en) |
FR (1) | FR3087834B1 (en) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1691046B1 (en) * | 2003-09-19 | 2013-04-24 | Nissan Diesel Motor Co., Ltd. | Exhaust emission purification apparatus for an internal combustion engine |
DE102006060314A1 (en) * | 2006-12-20 | 2008-06-26 | Robert Bosch Gmbh | Device for conveying fluid media at low temperatures |
DE102007022678A1 (en) * | 2007-05-11 | 2008-11-13 | Hydraulik-Ring Gmbh | Ammonia based exhaust gas re-treatment unit feeds gaseous ammonia directly into exhaust gas flow of internal combustion, preferably diesel, engine; exhaust gas flows through exhaust tract free of urea-water vapor and urea-water solution |
US7966811B2 (en) * | 2007-11-30 | 2011-06-28 | Perkins Engines Company Limited | Exhaust treatment system having a diverter valve |
US8122710B2 (en) * | 2008-12-01 | 2012-02-28 | International Engine Intellectual Property Company, Llc | Thermal management of urea dosing components in an engine exhaust after-treatment system |
FR2974848A1 (en) * | 2011-05-02 | 2012-11-09 | Peugeot Citroen Automobiles Sa | Exhaust line for use with nitrogen oxide selective catalytic reduction system in diesel engine of thermal vehicle, has non-return valve preventing increase of particles toward reservoir, and heat exchanger placed around valve to heat valve |
FR2994453B1 (en) | 2012-08-08 | 2014-09-05 | Snecma | LOW WEAR ASSEMBLY FOR AIRBORNE TURBOMACHINE AIRBORNE STATOR CURVED CROWN |
FR3022582B1 (en) * | 2014-06-19 | 2016-07-01 | Peugeot Citroen Automobiles Sa | CATALYTIC SELECTIVE REDUCTION SYSTEM HAVING INSERT HEATER ON ITS INJECTOR |
WO2016103417A1 (en) * | 2014-12-25 | 2016-06-30 | ボルボ トラック コーポレーション | Exhaust purification device for engine |
WO2018178849A1 (en) * | 2017-03-28 | 2018-10-04 | Johnson Matthey Public Limited Company | Egr urea hydrolysis |
-
2018
- 2018-10-26 FR FR1859919A patent/FR3087834B1/en active Active
-
2019
- 2019-10-21 DK DKPA201970655A patent/DK181450B1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DK181450B1 (en) | 2024-01-24 |
DK201970655A1 (en) | 2020-06-02 |
FR3087834A1 (en) | 2020-05-01 |
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