WO2010128531A1 - Heating device for a solution of water and urea for vehicles - Google Patents
Heating device for a solution of water and urea for vehicles Download PDFInfo
- Publication number
- WO2010128531A1 WO2010128531A1 PCT/IT2009/000201 IT2009000201W WO2010128531A1 WO 2010128531 A1 WO2010128531 A1 WO 2010128531A1 IT 2009000201 W IT2009000201 W IT 2009000201W WO 2010128531 A1 WO2010128531 A1 WO 2010128531A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heating device
- flange
- duct
- heating
- urea
- Prior art date
Links
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
- F01N3/206—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
- 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
- F01N2610/1406—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
- F01N2610/1466—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
- F01N2610/1486—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
Definitions
- the present invention refers to a heating device for a solution of water and urea, in particular AdBlue®, contained inside a tank of a vehicle.
- AdBlue® is a solution of urea in water (32.5%) with high purity,) used in the motor-traction sector, to be injected in the flow of exhaust gases of commercial vehicles, supplied with diesel oil in order to chemically reduce the emissions of nitrogen oxides NOx contained in exhaust gases, by separating such oxieds into elementary nitrogen and steam.
- the obtained reduction of nitrogen oxide in exhaust gases allows optimising the engine efficiency, depending on particles emission and fuel consumption, though keeping the engine power efficiency unaltered.
- AdBlue® is contained inside a separate tank on the vehicle, from which it is withdrawn to be injected, in a batched way, inside the muffler catalyst, into hot exhaust gases.
- the tank containing AdBlue® is equipped with a heating device composed of a flange, connected to an opening of the tank itself, from which a duct departs, bend as a serpentine, immersed inside AdBlue® and inside which the hot liquid circulates for cooling the vehicle engine, that takes care of unfreezing and keeping an adequate temperature.
- the heating serpentine is solely made of stainless steel and is generally connected to the connecting flange, also made of steel, through welding.
- object of the present invention is solving the above prior art problems by providing a heating device for a solution of water and urea, in particular AdBlue®, equipped with a serpentine-type of heating duct, wholly made of an aluminium alloy externally coated with at least one layer of thermoplastic material, removing any problem of corrosion and interaction in contact with urea, resulting lighter that the prior art ducts and, consequently, less stressed by vibrations.
- Another object of the present invention is providing a heating device for a solution of water and urea, in particular AdBlue®, in which the mechanical connection between flange and serpentine-type heating duct is free from welding, doing without the problems of breaks due to vibration stresses and resulting more reliable than prior art devices.
- FIG. 1 shows a perspective view of a preferred embodiment of the heating device according to the present invention.
- FIG. 2 shows a side view of the heating device of FIG. 1.
- the heating device 1 for a solution of water and urea, in particular AdBlue®, contained inside a tank (not shown) of a vehicle, generally a commercial vehicle supplied with diesel oil, is composed of at least one connecting flange 3 from which at least one heating duct 5 departs, preferably comprising at least one portion configured as a serpentine 6, whose ends are connected, through respective inserts 8 of such a flange 3, to the cooling liquid plant of the vehicle engine in order to circulate such liquid inside such heating duct 5, such ends being obviously aimed for entering and exiting the circulating liquid inside the heating duct 5 itself:
- the heating duct 5 is made of an aluminium alloy and is externally coated, at least partially, along the surfaces adapted to get in contact with such AdBlue®, with at least one layer of a thermoplastic material.
- the heating device 1 is further equipped with at least one level and temperature sensor 9 of the solution of water and urea or of the AdBlue® contained inside the tank, of a type substantially known and equipped with at least one level-measuring floating head 4, coaxially arranged onto the serpentine-type heating duct 5 and connected through a respective electric connection insert 11 of the flange 3 to level- and temperature-controlling and managing means, substantially known in the field of motor-traction.
- the level and temperature sensor 9 can be equipped with at least one vibration-preventing pad 10 adapted to dampen the vibration stresses to which the device 1 is subjected and to centre the sensor 9 with respect to the serpentine-type portion 6 of the heating duct 5.
- the heating device 1 is further equipped with at least one withdrawing duct 13 for urea or AdBlue® adapted to allow withdrawing from the tank such unused urea or AdBlue® through the flange 3 by means of a suitable connection 15a.
- the heating device 1 is further equipped with at least one delivery opening for urea or AdBlue® through the flange 3 adapted to allow the backflow, inside the tank, of such urea or AdBlue® through a respective connection 15b.
- venting duct 17 can also be arranged, for possible non-obnoxious vapours or gases developed inside the tank: possibly, the venting duct 17 can be equipped with at least one filtering cartridge for such vapours or gases.
- this latter one is equipped with at least one pair of through- seats, each one of which adapted to be crossed by a respective end of the heating duct 5 and corresponding to a related insert 8, each one of such ends being connected inside the respective through-seat by means of holding means, preferably made as at least one bush- 7, operating on at least one perimetric abutment neck of the through- seat itself and through which such end is passing.
- the flange 3 can be externally equipped with at least one sealing gasket 19 cooperating with the tank opening edge inside which the heating device 1 according to the present invention is inserted.
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- 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
A heating device (1) for a solution of water and urea contained inside a vehicle tank is described, composed of at least one connecting flange (3) from which at least one heating duct (5) departs, inside which cooling liquid of the vehicle engine circulates, such heating duct (5) being made of an aluminium alloy and being, at least partially, externally coated with at least one layer of a thermoplastic material.
Description
HEATING DEVICE FOR A SOLUTION OF WATER AND UREA FOR VEHICLES
The present invention refers to a heating device for a solution of water and urea, in particular AdBlue®, contained inside a tank of a vehicle.
As known, AdBlue® is a solution of urea in water (32.5%) with high purity,) used in the motor-traction sector, to be injected in the flow of exhaust gases of commercial vehicles, supplied with diesel oil in order to chemically reduce the emissions of nitrogen oxides NOx contained in exhaust gases, by separating such oxieds into elementary nitrogen and steam. The obtained reduction of nitrogen oxide in exhaust gases, in fact, allows optimising the engine efficiency, depending on particles emission and fuel consumption, though keeping the engine power efficiency unaltered.
Generally, AdBlue® is contained inside a separate tank on the vehicle, from which it is withdrawn to be injected, in a batched way, inside the muffler catalyst, into hot exhaust gases.
Since under extremely cold conditions, AdBlue®
assumes a gel-like consistency, thereby consequently resulting unusable, the tank containing AdBlue® is equipped with a heating device composed of a flange, connected to an opening of the tank itself, from which a duct departs, bend as a serpentine, immersed inside AdBlue® and inside which the hot liquid circulates for cooling the vehicle engine, that takes care of unfreezing and keeping an adequate temperature.
Taking into account that AdBlue® corrodes copper and aluminium, and the urea contained therein can generate reactions with such metals, the heating serpentine is solely made of stainless steel and is generally connected to the connecting flange, also made of steel, through welding.
Such known heatin devices, however, also due to the relatively high weight of the steel serpentine, often have breaks in welding spots between serpentine and flange, generated by vibration stresses to which they are subjected, with consequent severe operating problems of the heating device, often determining its unavoidable replacement .
Therefore, object of the present invention is solving the above prior art problems by providing a heating device for a solution of water and urea, in particular AdBlue®, equipped with a serpentine-type of
heating duct, wholly made of an aluminium alloy externally coated with at least one layer of thermoplastic material, removing any problem of corrosion and interaction in contact with urea, resulting lighter that the prior art ducts and, consequently, less stressed by vibrations.
Another object of the present invention is providing a heating device for a solution of water and urea, in particular AdBlue®, in which the mechanical connection between flange and serpentine-type heating duct is free from welding, doing without the problems of breaks due to vibration stresses and resulting more reliable than prior art devices.
The above and other objects and advantages of the invention, as will result from the following description, are reached with a heating device for a solution of water and urea, in particular AdBlue®, as described in claim 1. Preferred embodiments and non-trivial variations of the present invention are the subject matter of the dependent claims .
It will be immediately obvious that numerous variations and modifications (for example related to shape, sizes, arrangements and parts with equivalent functionality) can be made to what is described, without departing from the scope of the invention as appears from
the enclosed claims.
The present invention will be better described by some preferred embodiments thereof, provided as a non- limiting example, with reference to the enclosed drawings, in which:
FIG. 1 shows a perspective view of a preferred embodiment of the heating device according to the present invention; and
FIG. 2 shows a side view of the heating device of FIG. 1.
With reference to the Figures, it is possible to note that the heating device 1 for a solution of water and urea, in particular AdBlue®, contained inside a tank (not shown) of a vehicle, generally a commercial vehicle supplied with diesel oil, is composed of at least one connecting flange 3 from which at least one heating duct 5 departs, preferably comprising at least one portion configured as a serpentine 6, whose ends are connected, through respective inserts 8 of such a flange 3, to the cooling liquid plant of the vehicle engine in order to circulate such liquid inside such heating duct 5, such ends being obviously aimed for entering and exiting the circulating liquid inside the heating duct 5 itself: advantageously, the heating duct 5 is made of an aluminium alloy and is externally coated, at least
partially, along the surfaces adapted to get in contact with such AdBlue®, with at least one layer of a thermoplastic material.
Preferably, the heating device 1 is further equipped with at least one level and temperature sensor 9 of the solution of water and urea or of the AdBlue® contained inside the tank, of a type substantially known and equipped with at least one level-measuring floating head 4, coaxially arranged onto the serpentine-type heating duct 5 and connected through a respective electric connection insert 11 of the flange 3 to level- and temperature-controlling and managing means, substantially known in the field of motor-traction. At its lower end, the level and temperature sensor 9 can be equipped with at least one vibration-preventing pad 10 adapted to dampen the vibration stresses to which the device 1 is subjected and to centre the sensor 9 with respect to the serpentine-type portion 6 of the heating duct 5.
Preferably, the heating device 1 is further equipped with at least one withdrawing duct 13 for urea or AdBlue® adapted to allow withdrawing from the tank such unused urea or AdBlue® through the flange 3 by means of a suitable connection 15a. In parallel, the heating device 1 is further equipped with at least one delivery opening for urea or AdBlue® through the flange 3 adapted to allow
the backflow, inside the tank, of such urea or AdBlue® through a respective connection 15b.
Obviously, at least one venting duct 17 can also be arranged, for possible non-obnoxious vapours or gases developed inside the tank: possibly, the venting duct 17 can be equipped with at least one filtering cartridge for such vapours or gases.
Advantageously, in order to remove any connection welding between the heating duct 5 and the flange 3, this latter one is equipped with at least one pair of through- seats, each one of which adapted to be crossed by a respective end of the heating duct 5 and corresponding to a related insert 8, each one of such ends being connected inside the respective through-seat by means of holding means, preferably made as at least one bush- 7, operating on at least one perimetric abutment neck of the through- seat itself and through which such end is passing.
Moreover, the flange 3 can be externally equipped with at least one sealing gasket 19 cooperating with the tank opening edge inside which the heating device 1 according to the present invention is inserted.
Claims
1. Heating device (1) for a solution of water and urea contained inside a vehicle tank, composed of at least one connecting flange (3) from which at least one heating duct (5) departs, inside which cooling liquid of an engine of said vehicle circulates, characterised in that said heating duct (5) is made of an aluminium alloy and is, at least partially, externally coated with at least one layer of a thermoplastic material.
2. Heating device (1) according to claim 1, characterised in that said solution of water and urea is AdBlue®.
3. Heating device (1) according to claim 1, characterised in that heating duct (5) comprises at least one portion configured as a serpentine (6) .
4. Heating device (1) according to claim 1, characterised in that it is equipped with at least one level and temperature sensor (9) of said solution of water and urea contained inside the tank, said level and temperature sensor (9) being coaxially arranged onto said heating duct (5) and connected through an electric connection insert (11) of said flange (3) to controlling and managing means .
5. Heating device (1) according to claim 4, characterised in that said level and temperature sensor (9) e equipped with at least one vibration-preventing pad
(10) .
6. Heating device (1) according to claim 1, characterised in that it is equipped with at least one withdrawing duct (13) of said urea or AdBlue® from said tank by means of a connection (15a) through said flange (3) .
7. Heating device (1) according to claim 1, characterised in that it is equipped with at least one delivery opening of urea or AdBlue® through said flange (3) inside said tank through a connection (15b).
8. Heating device (1) according to claim 1, characterised in that it is equipped with at least one venting duct (17) through said flange (3) .
9. Heating device (1) according to claim 1, characterised in that said venting duct (17) is equipped with at least one filtering cartridge for vapours or gases .
10. Heating device (1) according to claim 1, characterised in that said flange (3) is equipped with at least one pair of through-seats, each one of which adapted to be crossed by a respective end of said heating duct (5) and corresponding to an insert (8) of said heating duct (5) of said flange (3) , each one of said ends being connected inside a respective through-seat by means of holding means operating on at least one perimetric abutment neck of said through-seat, said holding means being crossed by said end.
11. Heating device (1) according to claim 9, characterised in that said holding means is at least one bush (7).
12. Heating device (1) according to claim 1, characterised in that said flange (3) is externally equipped with at least one sealing gasket (19) cooperating with an edge of an opening of said tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IT2009/000201 WO2010128531A1 (en) | 2009-05-04 | 2009-05-04 | Heating device for a solution of water and urea for vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IT2009/000201 WO2010128531A1 (en) | 2009-05-04 | 2009-05-04 | Heating device for a solution of water and urea for vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010128531A1 true WO2010128531A1 (en) | 2010-11-11 |
Family
ID=41431940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IT2009/000201 WO2010128531A1 (en) | 2009-05-04 | 2009-05-04 | Heating device for a solution of water and urea for vehicles |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2010128531A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012155292A1 (en) * | 2011-05-16 | 2012-11-22 | 苏州派格力减排系统有限公司 | Integrated scr reducing agent storage device |
| WO2012155291A1 (en) * | 2011-05-16 | 2012-11-22 | 苏州派格力减排系统有限公司 | Integrated scr metering injection system |
| CN102979602A (en) * | 2011-07-18 | 2013-03-20 | 苏州派格丽减排系统有限公司 | Liquid heating system of reductive agent metering and storage device in selective catalytic reduction (SCR) system |
| CN105179054A (en) * | 2015-10-17 | 2015-12-23 | 浙江三叶机械有限公司 | Constant temperature electrical heating urea liquid inlet pipe |
| CN106593587A (en) * | 2016-12-07 | 2017-04-26 | 深圳华夏恒泰电子有限公司 | Integrated injection molding type urea liquid level sensor |
| WO2017137101A1 (en) * | 2016-02-09 | 2017-08-17 | Kautex Textron Gmbh & Co. Kg | System for storing an auxiliary liquid and supplying same to an internal combustion engine |
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| EP1662103A1 (en) * | 2003-09-05 | 2006-05-31 | Nissan Diesel Motor Co., Ltd. | Exhaust gas purification device of engine |
| EP1731882A1 (en) * | 2004-03-29 | 2006-12-13 | Nissan Diesel Motor Co., Ltd. | Structure for reducing agent container |
| EP1925354A1 (en) * | 2006-10-27 | 2008-05-28 | Robert Bosch Gmbh | Catalytic reduction device |
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2009
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| DE19935920A1 (en) * | 1999-07-30 | 2001-03-15 | Siemens Ag | Arrangement for heating reduction agent reservoir container of exhaust gas post-treatment system for internal combustion engine reliably prevents freezing of reduction agent |
| EP1662103A1 (en) * | 2003-09-05 | 2006-05-31 | Nissan Diesel Motor Co., Ltd. | Exhaust gas purification device of engine |
| EP1731882A1 (en) * | 2004-03-29 | 2006-12-13 | Nissan Diesel Motor Co., Ltd. | Structure for reducing agent container |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9279352B2 (en) | 2011-05-16 | 2016-03-08 | Suzhou Powergreen Emission Solution System Co., Ltd | Integrated SCR metering injection system |
| WO2012155291A1 (en) * | 2011-05-16 | 2012-11-22 | 苏州派格力减排系统有限公司 | Integrated scr metering injection system |
| CN103201473A (en) * | 2011-05-16 | 2013-07-10 | 苏州派格丽减排系统有限公司 | Integrated scr reducing agent storage device |
| CN103210191A (en) * | 2011-05-16 | 2013-07-17 | 苏州派格丽减排系统有限公司 | Integrated SCR metering injection system |
| CN103201473B (en) * | 2011-05-16 | 2015-06-03 | 苏州派格丽减排系统有限公司 | Integrated SCR reducing agent storage device |
| WO2012155292A1 (en) * | 2011-05-16 | 2012-11-22 | 苏州派格力减排系统有限公司 | Integrated scr reducing agent storage device |
| CN102979602A (en) * | 2011-07-18 | 2013-03-20 | 苏州派格丽减排系统有限公司 | Liquid heating system of reductive agent metering and storage device in selective catalytic reduction (SCR) system |
| CN105179054A (en) * | 2015-10-17 | 2015-12-23 | 浙江三叶机械有限公司 | Constant temperature electrical heating urea liquid inlet pipe |
| WO2017137101A1 (en) * | 2016-02-09 | 2017-08-17 | Kautex Textron Gmbh & Co. Kg | System for storing an auxiliary liquid and supplying same to an internal combustion engine |
| CN108603463A (en) * | 2016-02-09 | 2018-09-28 | 考特克斯·特克斯罗恩有限公司及两合公司 | System for storing auxiliary liquid and auxiliary liquid being supplied internal combustion engine |
| CN108603463B (en) * | 2016-02-09 | 2020-09-08 | 考特克斯·特克斯罗恩有限公司及两合公司 | System for storing and supplying an auxiliary liquid to an internal combustion engine |
| US10767598B2 (en) | 2016-02-09 | 2020-09-08 | Kautex Textron Gmbh & Co. Kg | System for storing an auxiliary liquid and supplying same to an internal combustion engine |
| CN106593587A (en) * | 2016-12-07 | 2017-04-26 | 深圳华夏恒泰电子有限公司 | Integrated injection molding type urea liquid level sensor |
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