EP3504404A2 - Internal combustion engine with an aqueous urea injection solution in the exhaust tract - Google Patents
Internal combustion engine with an aqueous urea injection solution in the exhaust tractInfo
- Publication number
- EP3504404A2 EP3504404A2 EP17752287.7A EP17752287A EP3504404A2 EP 3504404 A2 EP3504404 A2 EP 3504404A2 EP 17752287 A EP17752287 A EP 17752287A EP 3504404 A2 EP3504404 A2 EP 3504404A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- internal combustion
- combustion engine
- water solution
- urea water
- 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- Withdrawn
Links
- 239000000243 solution Substances 0.000 title claims abstract description 52
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 36
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 239000004202 carbamide Substances 0.000 title claims abstract description 11
- 238000002347 injection Methods 0.000 title claims abstract description 5
- 239000007924 injection Substances 0.000 title claims abstract description 5
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 claims description 43
- 238000007872 degassing Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 238000013022 venting Methods 0.000 claims description 2
- 238000011001 backwashing Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
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]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0031—Degasification of liquids by filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0036—Flash degasification
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0063—Regulation, control including valves and floats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
- B01D2239/0208—Single-component fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0618—Non-woven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1216—Pore size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
- B01D29/904—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding directing the mixture to be filtered on the filtering element in a manner to clean the filter continuously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1615—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of natural origin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2003—Glass or glassy material
- B01D39/2017—Glass or glassy material the material being filamentary or fibrous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2027—Metallic material
- B01D39/2031—Metallic material the material being particulate
- B01D39/2034—Metallic material the material being particulate sintered or bonded by inorganic agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9431—Processes characterised by a specific 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
- F01N2610/02—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
-
- 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
- F01N2610/1426—Filtration means
-
- 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
- F01N2610/1466—Means for venting air out of conduits or tanks
-
- 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
- F01N2610/1473—Overflow or return means for the substances, e.g. conduits or valves for the return path
-
- 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
- F01N2610/148—Arrangement of sensors
Definitions
- the invention relates to an internal combustion engine with Urwasserwasserlö- sungseinspritzung in the exhaust system and a method for degassing and filtration.
- Degassing is the controlled removal of gases and other volatile substances from liquids and solids.
- the hydrogen embrittlement of steel, the spoilage of substances by oxidation, the hydrolysis by moisture, the corrosion of steam boilers, pipelines, etc. by oxygen and carbon dioxide in the liquid the failure of hydraulic systems by increased compressibility.
- the most common method for degassing is to expose the substance to be degassed to a vacuum. If ultrasound is introduced into a liquid, eg. B. via a sonotrode, a high-frequency alternating pressure field builds up in it. Due to the periodic short-term negative pressure cavities form. This effect is called cavitation.
- the cavities are formed, for example, by gas inclusions, which act as cavitation nuclei.
- the dissolved gas diffuses into the cavitation bubbles and prevents them from completely imploding again during the subsequent pressure increase:
- the bubbles grow with each oscillation process.
- the bubbles are forced to their nodes, where they unite (coalescence) and ultimately move to the surface through buoyancy.
- Degassing can also be achieved solely by increasing the temperature.
- the simplest option is energy supply at reduced pressure and is called boiling in a vacuum. This effect can be observed during normal cooking, here bubbles form in the water.
- Such devices are disclosed, for example, in WO 2013029950 A1, where air bubbles are collected by means of so-called gas traps, or in DE 102007012918 A1, where air bubbles are generated by high-frequency opening and closing of a liquid valve, which are retained in a filter.
- This is disadvantageous in that, as in the case of WO 2013029950 A1, the gas bubbles are more likely to linger at different locations. Or, as in DE 102007012918 A1, bubbles are generated instead of being removed.
- the object of the present invention is to avoid the above-mentioned disadvantages and to provide an apparatus and a method that reliably degas or filter a urea water solution.
- an internal combustion engine with urea water solution injection in the exhaust line comprising at least one urea water solution tank, at least one pump, at least one suction line leading to the pump, at least one urea water solution metering valve connected to the pump by means of a pressure line, and at least one return line, which leads from the pump to the urea water solution tank and at the opposite end of the pump, a filter element is arranged, and at least one arranged in the urea water solution tank urea water solution sensor and a method for degassing and filtration of urea water solution, in particular for use in an internal combustion engine, solved.
- the urea water solution sensor measures the level of urea in the solution with water. This happens z. B. by density measurement by ultrasonic or infrared measurement. Bubbles in the measuring section of the sensor falsify the measurement result.
- Advantage of the invention is the avoidance or reduction of the entry of bubbles (which have formed, for example, in the pump or the lines) in the urea water solution tank, whereby suitable measurement conditions for the urea water solution sensor can be achieved.
- the filter is a precoat filter or a candle filter or a spatial filter or a laminated bed filter or a magnetic filter.
- the filter contains flexible filter media or rigid filter media or bulk layers.
- the filter material is a sieve or a paper filter or a glass fiber fleece or ceramic or sintered metal or needle felt.
- the pore size of the filter is less than 70 micrometers.
- the filter is a two-dimensional filter or a three-dimensional filter or a multilayer or a surface or a depth filter.
- An advantageous development provides that the urea water solution tank is under vacuum and / or provided with venting additives.
- the urea water solution tank has an ultrasound generator and / or a heater, wherein the ultrasound generator is arranged in the quality sensor.
- Figure 1 a schematic representation of the urea water solution tank to the injection valve
- Figure 2 a schematic representation of the internal combustion engine
- FIG. 1 shows a schematic representation of the urea water solution tank 7 in which urea water solution is contained and which contains a quality sensor 3.
- a suction pipe is arranged, at one end of which a filter is arranged and at the other end of which the urea water solution pump 6 is arranged.
- a return line is arranged, arranged at the opposite side of the pump, a filter 1, which retains air bubbles.
- FIG. 2 shows a schematic representation of the internal combustion engine with urea water solution tank 7, control unit (ECU), urea water solution pump 6 and metering valve 8 metering into the exhaust gas tract.
- ECU control unit
- the urea water solution tank 7 contains a filter 1 at the return to the bubble separation, a filter 2 on the suction line, a quality sensor 3, a level sensor 4 and a temperature sensor 5, all with the control unit (ECU) of the internal combustion engine (ICE).
- ECU control unit
- a suction line is arranged, at one end of a filter 2 is arranged and at the other end of the urine fabric water solution pump 6 is arranged.
- a return line is arranged, arranged at the pump 6 opposite side, a filter 1, which retains air bubbles.
- FIG. 3 shows a schematic representation of the internal combustion engine with urea water solution tank 7, control unit (ECU), urea water solution pump 6 and metering valve 8 metering into the exhaust gas tract.
- the urea water solution tank 7 contains a filter 1 at the return to the bubble separation, a filter 2 at the suction line, a quality - 3 level sensor, a level sensor 4 and a temperature sensor 5, all with the control unit (ECU) of the internal combustion engine (ICE).
- ECU control unit of the internal combustion engine
- a return line is arranged at the pump 6 opposite side of a filter 1 arranged, which retains air bubbles.
- a pressure line to urea Wasserantssdosierventil 8 which is metered into the exhaust gas urea water solution and also with the control unit (ECU) of the internal combustion engine (ICE) is controlled.
- ICE internal combustion engine
- ICE catalyst in the exhaust system of the internal combustion engine
- a pressure, a temperature and a NOx sensor are arranged, all with the control unit (ECU) of the internal combustion engine machine (ICE) are connected.
- a temperature and a NOx sensor are arranged, both of which are connected to the control unit (ECU) of the internal combustion engine (ICE).
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016010100.8A DE102016010100A1 (en) | 2016-08-24 | 2016-08-24 | Internal combustion engine |
PCT/EP2017/000958 WO2018036647A2 (en) | 2016-08-24 | 2017-08-07 | Internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3504404A2 true EP3504404A2 (en) | 2019-07-03 |
Family
ID=59631715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17752287.7A Withdrawn EP3504404A2 (en) | 2016-08-24 | 2017-08-07 | Internal combustion engine with an aqueous urea injection solution in the exhaust tract |
Country Status (5)
Country | Link |
---|---|
US (1) | US10934915B2 (en) |
EP (1) | EP3504404A2 (en) |
JP (1) | JP7083337B2 (en) |
DE (1) | DE102016010100A1 (en) |
WO (1) | WO2018036647A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021112195A1 (en) | 2021-05-11 | 2022-11-17 | Bayerische Motoren Werke Aktiengesellschaft | Method for reducing the accumulation of bubbles in a tank of a motor vehicle and exhaust gas aftertreatment device |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2746448B1 (en) | 1996-03-21 | 1998-04-30 | Snecma | FUEL SUPPLY CIRCUIT FOR DECONTAMINATION OF THE INJECTED DOSE FLOW |
JP2000129311A (en) * | 1998-10-28 | 2000-05-09 | Bridgestone Corp | Metallic fiber non-woven fabric sintered sheet |
DE10052077A1 (en) * | 2000-10-19 | 2002-05-02 | Hydraulik Ring Gmbh | Device for exhaust gas aftertreatment of diesel engines |
JP4214077B2 (en) * | 2004-04-08 | 2009-01-28 | 日野自動車株式会社 | Urea water storage device |
DE102007012918A1 (en) | 2007-03-19 | 2008-09-25 | Robert Bosch Gmbh | Controllable liquid valve operating method for increasing resistance of valve against freezing, involves initiating rest condition after delivery of liquid, and repeatedly opening and closing liquid valve at high frequency |
JP5629678B2 (en) | 2008-03-28 | 2014-11-26 | イナジー・オートモーティブ・システムズ・リサーチ・(ソシエテ・アノニム) | SCR system for purifying NOx exhaust gas |
DE102009000097A1 (en) | 2009-01-09 | 2010-07-15 | Robert Bosch Gmbh | Conveyor for an SCR system |
DE102009029400B4 (en) | 2009-09-11 | 2023-09-28 | Robert Bosch Gmbh | vehicle tank |
JP5381618B2 (en) * | 2009-10-27 | 2014-01-08 | スズキ株式会社 | Scooter type motorcycle |
EP2565412A1 (en) | 2011-08-29 | 2013-03-06 | Inergy Automotive Systems Research (Société Anonyme) | Supply system for a liquid |
EP2708710A3 (en) | 2012-09-13 | 2015-02-18 | TI Group Automotive Systems, L.L.C. | Fluid distribution system and components thereof |
US20140166126A1 (en) | 2012-12-17 | 2014-06-19 | Deere & Company | Reductant delivery system |
JP6024478B2 (en) * | 2013-01-28 | 2016-11-16 | いすゞ自動車株式会社 | Urea water pipe blockage detection device for urea SCR |
US9089791B2 (en) * | 2013-03-14 | 2015-07-28 | Cummins Ip, Inc. | Apparatus, method, and system for reductant filtration |
CN105189965B (en) | 2013-05-07 | 2018-01-26 | 天纳克汽车经营有限公司 | EGR gas treatment fluid system |
WO2016076830A1 (en) | 2014-11-10 | 2016-05-19 | Cummins Emission Solutions, Inc. | Exhaust fluid filter including hydrocarbon detection witness media |
-
2016
- 2016-08-24 DE DE102016010100.8A patent/DE102016010100A1/en active Pending
-
2017
- 2017-08-07 US US16/326,414 patent/US10934915B2/en active Active
- 2017-08-07 WO PCT/EP2017/000958 patent/WO2018036647A2/en unknown
- 2017-08-07 EP EP17752287.7A patent/EP3504404A2/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
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JP2019532207A (en) | 2019-11-07 |
JP7083337B2 (en) | 2022-06-10 |
US10934915B2 (en) | 2021-03-02 |
DE102016010100A1 (en) | 2018-03-01 |
WO2018036647A2 (en) | 2018-03-01 |
US20190186320A1 (en) | 2019-06-20 |
WO2018036647A3 (en) | 2018-04-19 |
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