CN215927520U - Urea solution supply device and vehicle - Google Patents
Urea solution supply device and vehicle Download PDFInfo
- Publication number
- CN215927520U CN215927520U CN202121123514.8U CN202121123514U CN215927520U CN 215927520 U CN215927520 U CN 215927520U CN 202121123514 U CN202121123514 U CN 202121123514U CN 215927520 U CN215927520 U CN 215927520U
- Authority
- CN
- China
- Prior art keywords
- power supply
- urea
- urea solution
- supply device
- supply line
- 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
Images
Classifications
-
- 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
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model belongs to the technical field of vehicle equipment, and particularly relates to a urea solution supply device and a vehicle with the same. The urea solution supply device comprises a urea tank, a heating element, a urea pump and a power supply, wherein a liquid storage cavity is formed in the urea tank, the heating element is arranged in the liquid storage cavity, the urea pump is communicated with the liquid storage cavity through a liquid inlet pipe, at least one part of the liquid inlet pipe is a metal pipe, a conductive coil is sleeved outside the metal pipe, the power supply is electrically connected with the heating element through a first power supply circuit, and the power supply is electrically connected with the conductive coil through a second power supply circuit. According to the urea solution supply device provided by the utility model, the crystallization phenomenon in the urea box and the pipeline for conveying urea can be effectively prevented, the normal operation of the vehicle post-treatment process is ensured, and the vehicle emission pollution is reduced.
Description
Technical Field
The utility model belongs to the technical field of vehicle equipment, and particularly relates to a urea solution supply device and a vehicle with the same.
Background
The existing diesel engine aftertreatment comprises an SCR (Selective Catalytic Reduction) system, urea aqueous solution is injected into an exhaust passage of a vehicle, and urea is hydrolyzed by using heat of exhaust gas to generate ammonia, and the ammonia is used as a reducing agent of a Selective Catalytic Reduction device to reduce nitrogen oxides in tail gas of diesel vehicles, so that exhaust pollution is reduced. However, the urea solution in the urea tank of the SCR system is easily crystallized at-11 ℃, so that the urea solution needs to be heated or kept warm in a low-temperature or cold environment.
At the present stage, when the temperature of the urea box is lower than minus 5 ℃ and the temperature of engine coolant reaches 55 ℃, the ECU opens the coolant electromagnetic valve, and hot coolant flows through the urea box to heat and unfreeze the urea. When the vehicle is used in cold regions, the temperature of the cooling liquid before starting is very low, and the vehicle needs to be heated for a period of time to reach 55 ℃. Under the condition, the urea can not be unfrozen, so that the emission of the whole vehicle is poor, and the urea crystallization failure rate is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that urea can be thawed after a vehicle needs to be heated for a period of time at least in a low-temperature environment. This object is achieved by:
a first aspect of the present invention provides a urea solution supply apparatus including:
the urea box is internally provided with a liquid storage cavity;
the heating element is arranged in the liquid storage cavity;
the urea pump is communicated with the liquid storage cavity through a liquid inlet pipe, at least one part of the liquid inlet pipe is a metal pipe, and a conductive coil is sleeved outside the metal pipe;
the power supply is electrically connected with the heating element through a first power supply line, and the power supply is electrically connected with the conductive coil through a second power supply line.
According to the urea solution supply device, the heating element is arranged in the liquid storage cavity and is electrically connected with the power supply through the first power supply line, when the power supply supplies power to the heating element through the first power supply line, the heating element can be electrified and heated under the action of the power supply, so that the urea solution in the urea tank is directly heated, the temperature of the urea solution is increased, the urea crystallization phenomenon in the urea tank and a pipeline for conveying the urea solution is prevented, the vehicle is not required to be preheated, meanwhile, at least one part of the liquid inlet pipe is arranged to be a metal pipe, a conductive coil is sleeved outside the metal pipe and is electrically connected with the power supply through the second power supply line, when the power supply supplies power to the conductive coil through the second power supply line, the conductive coil can generate an eddy magnetic field under the action of the power supply, and the metal pipe generates heat under the action of the eddy magnetic field, therefore, the urea solution in the liquid inlet pipe is heated, the temperature of the urea during emission is further improved, the crystallization phenomenon in a pipeline for conveying the urea is effectively prevented, the normal operation of the vehicle post-treatment process is ensured, and the vehicle emission pollution is reduced.
In addition, the urea solution supply apparatus according to the present invention may further have the following additional features:
in some embodiments of the present invention, the heating member includes a coil disk electrically connected to the power supply through the first power supply line, and a metal conductor provided on the coil disk and cutting a magnetic induction line generated by the coil disk in an energized state.
In some embodiments of the present invention, the number of the metal conductors is multiple, any one of the metal conductors is a closed ring structure, and the metal conductors of the plurality of ring structures are sequentially sleeved and arranged at intervals.
In some embodiments of the utility model, the heating element is an electromagnetic disc.
In some embodiments of the utility model, the heating element is tiled at the bottom of the reservoir.
In some embodiments of the present invention, a first actuator and a first inverter are disposed on the first power supply line, the first actuator is configured to control on/off of the first power supply line, and the first inverter is configured to convert a direct current of the power supply into an alternating current and output the alternating current.
In some embodiments of the present invention, a second actuator and a second inverter are disposed on the second power supply line, the second actuator is configured to control on/off of the second power supply line, and the second inverter is configured to convert a direct current of the power supply into an alternating current and output the alternating current.
In some embodiments of the utility model, the urea solution supply device further comprises a urea nozzle connected to the output of the urea pump via a liquid outlet pipe.
In some embodiments of the present invention, the urea solution supplying apparatus further includes a temperature sensor disposed in the reservoir chamber for detecting a temperature of the urea solution in the reservoir chamber.
Another aspect of the present invention also proposes a vehicle having the urea solution supply apparatus of any one of the above.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like parts are designated by like reference numerals throughout the drawings. Wherein:
fig. 1 is a schematic view of the overall configuration of a urea solution supply apparatus according to the present embodiment;
fig. 2 is a schematic sectional view of a portion of the heating element of fig. 1.
The reference numerals in the drawings denote the following:
1: a urea solution supply device;
10: urea box, 11: a liquid storage cavity;
20: heating element, 21: coil disk, 22: metal conductor, 23: first lead, 24: a second lead;
30: urea pump, 31: liquid inlet pipe, 311: metal pipe, 312: conductive coil, 32: liquid outlet pipe, 33: a liquid return pipe;
40: a power source;
50: first power supply line, 51: first actuator, 52: a first inverter;
60: second power supply line, 61: second actuator, 62: a second inverter;
70: a urea nozzle;
80: a temperature sensor;
90：ECU。
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the utility model are shown in the drawings, it should be understood that the utility model can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The utility model provides a vehicle having an SCR aftertreatment system. The SCR aftertreatment system comprises a DOC (oxidation catalyst) which is sequentially arranged in an exhaust pipe of a vehicle engine and can oxidize NO in exhaust gas into NO2, a DPF (particle trap which realizes the trapping of particles by alternately plugging an inlet and an outlet of carrier holes to force airflow to pass through a porous wall surface) and an SCR (selective catalytic oxidation system which injects urea in front of an SCR box to generate NH3 to react with NOx in the exhaust gas, thereby achieving the purpose of removing the NOx). The vehicle is provided with the urea solution supply device, and the urea solution is supplied to the SCR system through the urea solution supply device, so that exhaust pollution of the vehicle can be effectively reduced.
As shown in fig. 1, a urea solution supply apparatus 1 of the present embodiment includes a urea tank 10, a heating member 20, a urea pump 30, and a power source 40. A liquid storage cavity 11 is formed in the urea box 10, and NH is formed in the liquid storage cavity 113The urea solution of (4). The urea pump 30 is communicated with the liquid storage cavity 11 through a liquid inlet pipe 31, specifically, the liquid inlet pipe 31 is communicated with the bottom of the liquid storage cavity 11, so that the urea solution in the liquid storage cavity 11 can be pumped out to the maximum extent and participate in the reaction with NOx in the exhaust gas. The heating member 20 is arranged in the liquid storage cavity 11, and the power supply 40 is arranged outside the liquid storage cavity 11 and is electrically connected with the heating member 20 through a first power supply circuit 50. At least one part of the liquid inlet pipe 31 is a metal pipe 311, a conductive coil 312 is sleeved outside the metal pipe 311, and the power supply 40 is electrically connected with the conductive coil 312 through the second power supply line 60.
According to the urea solution supply device 1 of the present invention, the heating element 20 is disposed inside the liquid storage cavity 11, the heating element 20 is electrically connected to the power source 40 through the first power supply circuit 50, when the power source 40 supplies power to the heating element 20 through the first power supply circuit 50, the heating element 20 can be electrically heated under the action of the power source 40, so as to directly heat the urea solution in the urea tank 10, increase the temperature of the urea solution, prevent the urea crystallization phenomenon in the urea tank 10 and the pipeline for conveying the urea solution, meanwhile, at least a part of the liquid inlet pipe 31 is disposed as the metal pipe 311, and the conductive coil 312 is sleeved outside the metal pipe 311, the conductive coil 312 is electrically connected to the power source 40 through the second power supply circuit 60, when the power source 40 supplies power to the conductive coil 312 through the second power supply circuit 60, the conductive coil 312 can generate an eddy magnetic field under the action of the power source 40, the metal pipe 311 generates heat under the effect of the eddy magnetic field, so that the urea solution in the liquid inlet pipe 31 is heated, the temperature of the urea solution during discharge is further increased, crystallization in a pipeline for conveying urea is effectively prevented, normal operation of a vehicle post-treatment process is guaranteed, and vehicle discharge pollution is reduced.
As shown in fig. 1 and 2, the heating element 20 of the present embodiment includes a coil panel 21 and a metal conductor 22, the coil panel 21 is electrically connected to a power source 40 through a first power supply line 50, and the coil panel 21 can generate an eddy-like magnetic field when the first power supply line 50 supplies power to the coil panel 21. The metal conductor 22 is arranged on the coil panel 21 and can cut the magnetic induction lines generated by the coil panel 21 in the power-on state, so that the metal conductor 22 generates current and generates heat, the heated metal conductor 22 can uniformly heat the urea solution in the liquid storage cavity 11, the temperature of the urea solution in the urea box 10 is increased, the urea crystallization phenomenon in the urea box 10 is effectively prevented, and the vehicle does not need to be preheated. Compared with a heating mode adopting a resistance wire, the magnetic induction wire generated by the coil panel 21 in the power-on state is cut by the metal conductor 22 in the embodiment, so that the metal conductor 22 generates current and generates heat, the temperature rise in the liquid storage cavity 11 is more uniform, the local temperature rise in the liquid storage cavity 11 is prevented from being too high, the measurement precision is influenced, meanwhile, the current generated by the power supply 40 does not directly act on the urea solution, but generates current and heats the urea solution through the metal conductor 22, the energy utilization rate is high, the sufficient conversion of electric energy and heat energy can be realized, and the use safety and reliability of equipment are further ensured. Wherein the first power supply wire 50 includes a first lead 23 and a second lead 24, the first lead 23 is used for connecting the positive pole of the power source 40 and the coil disk 21, and the second lead 24 is used for connecting the negative pole of the power source 40 and the coil disk 21, thereby forming an electric loop between the power source 40 and the coil disk 21. The power source 40 is also connected to the conductive coil 32 by two leads.
In the present embodiment, when the coil disk 21 is energized, an eddy current effect is generated between the metal conductor 22 and the coil disk 21. The eddy current effect is a phenomenon that a bulk metal conductor placed in a changing magnetic field or a bulk metal conductor serving as a magnetic line of cut in a magnetic field generates eddy current-like induced current in the bulk metal conductor.
Further, in order to ensure that the metal conductors 22 cut the magnetic induction lines more uniformly, the heating element 20 of the present embodiment includes a plurality of metal conductors 22, any one of the metal conductors 22 is a closed ring structure, and the metal conductors 22 of the plurality of ring structures are sequentially sleeved and arranged at intervals. As shown in fig. 2, the metal conductor 22 at the middle position in the present embodiment is a solid rectangular ring structure, and the metal conductor 22 sleeved outside is a hollow ring structure. In other examples of the present embodiment, the metal conductor 22 may also be a circular or other shaped annular structure. In other examples of the present embodiment, the heating member 20 may also be an electromagnetic disk, such as a prior art electromagnetic disk, directly disposed in the liquid storage chamber 11 and used for heating the urea solution.
Further, as shown in fig. 1, the heating member 20 of the present embodiment is laid on the bottom of the reservoir chamber 11, so that the urea solution in the reservoir chamber 11 can be heated more uniformly.
Further, in order to facilitate control of the operating state of the heating member 20, the first power supply line 50 of the present embodiment is provided with a first actuator 51 and a first inverter 52. The first actuator 51 is used for controlling on/off of the first power supply line 50, and the first inverter 52 is used for converting direct current of the power supply 40 into alternating current and outputting the alternating current. The coil panel 21 can form a changing magnetic field under the action of alternating current, so that the metal conductor 22 moves relative to the changing magnetic induction line of the coil panel 21, the magnetic induction line is cut and current is generated, the temperature of the metal conductor 22 is increased, the urea solution in the liquid storage cavity 11 is heated, and the urea crystallization phenomenon in the liquid storage cavity 11 is prevented. The first inverter 52 may adjust the frequency and magnitude of the output current on the first power supply line 50 according to the detected temperature of the urea solution in the reservoir 11, so as to adjust the heat generation amount of the metal conductor 22, so as to make the temperature of the urea solution in the reservoir 11 reach the target value quickly.
Further, in order to facilitate control of the operating state of the conductive coil 312, the second power supply line 60 of the present embodiment is provided with a second actuator 61 and a second inverter 62, the second actuator 61 is configured to control on/off of the second power supply line 60, and the second inverter 62 is configured to convert the direct current of the power source 40 into alternating current and output the alternating current. The conductive coil 312 can form a changing magnetic field under the action of alternating current, so that the metal pipe 311 moves relative to the changing magnetic induction line of the conductive coil 312, the magnetic induction line is cut, current is generated, the temperature of the metal pipe 311 rises, the urea solution in the liquid inlet pipe 31 is heated, and the urea crystallization phenomenon in the liquid inlet pipe 31 is prevented. The second inverter 62 can adjust the frequency and the magnitude of the output current on the second power supply line 60, so as to adjust the heat productivity of the metal pipe 311, and achieve the purpose of quickly adjusting the temperature of the urea solution in the liquid inlet pipe 31.
Further, the urea solution supply device 1 of the present embodiment further includes a urea nozzle 70, the urea nozzle 70 is connected to the output end of the urea pump 30 through the liquid outlet pipe 32, and the urea nozzle 70 injects the urea solution to the front end of the SCR to form NH3So as to react with NOx in the exhaust gas, thereby achieving the aim of removing the NOx. The urea solution supply apparatus 1 of the present embodiment further includes a return pipe 33, and the urea pump 30 pumps the urea solution that is not discharged from the urea pump 30 and the liquid outlet pipe 32 back to the urea tank 10 through the return pipe 33 for the next use.
Further, the urea solution supply apparatus 1 of the present embodiment further includes a temperature sensor 80, and the temperature sensor 80 is provided in the reservoir chamber 11 and detects the temperature of the urea solution in the reservoir chamber 11. The temperature sensor 80 is connected to an ECU90 of the vehicle, and the ECU90 is electrically connected to the first actuator 51 and the second actuator 52 respectively, so as to control the operating states of the first actuator 51 and the second actuator 52, and accordingly, the operating states of the heating element 20 and the conductive coil 312 can be controlled according to the temperature of the urea solution detected by the temperature sensor 80, so as to ensure the temperature of the urea solution. The temperature sensor 80 of the embodiment is a liquid level temperature sensor, and can detect the liquid level of the urea solution in the liquid storage cavity 11 while detecting the temperature of the urea solution, thereby ensuring the sufficiency of the urea solution and ensuring the smooth proceeding of the post-treatment process.
Specifically, in the urea solution supply apparatus 1 of the present embodiment, during normal use, the ECU90 determines the magnitude of the temperature T of the urea solution in the urea tank 10 and the required value T1(-5 ℃), based on the detection result of the temperature sensor 80 in the urea tank 10, and if T > T1(-5 ℃), this indicates that heating of the urea solution in the urea tank 10 is not necessary, the first actuator 51 cuts off the first power supply line 50, and the heater 20 in the urea tank 10 does not operate. If T is less than or equal to T1(-5 ℃), the first actuator 51 is controlled to conduct the first power supply circuit 50 and to enable the heating element 20 to work and release heat until T is more than T1(-5 ℃).
When T is more than T1(-5 ℃), judging the difference value between the temperature T of the urea solution and the optimal working temperature T2 of the urea solution, if T-T2 is more than or equal to 0, controlling to cut off the second power supply circuit 60 by the second actuator 61, and enabling the conductive coil 312 not to work; if T-T2 is less than 0, the second actuator 61 is controlled to conduct the second power supply line 60, the metal pipe 311 is electrified to generate heat, and real-time adjustment is carried out according to the temperature difference between T and T2, the urea injection amount and the like.
The urea solution supply device 10 of the present embodiment can ensure accurate control of the temperature of the urea solution in the post-treatment process and reduce energy consumption by controlling the temperature of the urea solution in the urea tank 10 and the temperature of the urea solution in the liquid inlet pipe 31, respectively.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A urea solution supply device characterized by comprising:
the urea box is internally provided with a liquid storage cavity;
the heating element is arranged in the liquid storage cavity;
the urea pump is communicated with the liquid storage cavity through a liquid inlet pipe, at least one part of the liquid inlet pipe is a metal pipe, and a conductive coil is sleeved outside the metal pipe;
the power supply is electrically connected with the heating element through a first power supply line, and the power supply is electrically connected with the conductive coil through a second power supply line.
2. The urea solution supplying apparatus according to claim 1, wherein the heating member includes a coil disk electrically connected to the power supply through the first power supply line, and a metal conductor provided on the coil disk and adapted to cut a magnetic induction line generated by the coil disk in an energized state.
3. The urea solution supply device according to claim 2, wherein the number of the metal conductors is plural, any one of the metal conductors has a closed annular structure, and the metal conductors having the plurality of annular structures are sequentially fitted and spaced apart from each other.
4. The urea solution supplying apparatus according to claim 1, wherein the heating member is an electromagnetic disk.
5. The urea solution supplying device according to claim 1, wherein the heating member is laid on a bottom of the reservoir chamber.
6. The urea solution supply device according to claim 1, wherein a first actuator and a first inverter are provided on the first power supply line, the first actuator is configured to control on/off of the first power supply line, and the first inverter is configured to convert direct current of the power supply into alternating current and output the alternating current.
7. The urea solution supply device according to claim 1, wherein a second actuator and a second inverter are provided on the second power supply line, the second actuator is configured to control on/off of the second power supply line, and the second inverter is configured to convert direct current of the power supply into alternating current and output the alternating current.
8. The urea solution supply device according to claim 1, further comprising a urea nozzle connected to an output end of the urea pump through a liquid outlet pipe.
9. The urea solution supply device according to claim 1, further comprising a temperature sensor disposed in the reservoir chamber for detecting a temperature of the urea solution in the reservoir chamber.
10. A vehicle characterized by having a urea solution supply device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121123514.8U CN215927520U (en) | 2021-05-24 | 2021-05-24 | Urea solution supply device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121123514.8U CN215927520U (en) | 2021-05-24 | 2021-05-24 | Urea solution supply device and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215927520U true CN215927520U (en) | 2022-03-01 |
Family
ID=80402228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121123514.8U Active CN215927520U (en) | 2021-05-24 | 2021-05-24 | Urea solution supply device and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215927520U (en) |
-
2021
- 2021-05-24 CN CN202121123514.8U patent/CN215927520U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6335995B2 (en) | Electric heating-assisted passive regeneration and active regeneration for efficient emission control of diesel engines | |
| KR102309229B1 (en) | Combustion engine | |
| EP2443327B1 (en) | Apparatus and method for reductant line heating control | |
| US9212582B2 (en) | Exhaust gas purification system and method for controlling the same | |
| CN110454259B (en) | Method for supplying power to a plurality of electric heaters by using single power supply | |
| US9222391B2 (en) | Exhaust gas purification system | |
| JP2010138883A (en) | Control device for exhaust emission control system | |
| CN110552769B (en) | Control method of tail gas aftertreatment system and tail gas aftertreatment system | |
| JP2010065581A (en) | Exhaust emission control system of internal combustion engine | |
| KR20220070516A (en) | Exhaust gas mixers, systems, and methods of use | |
| US20150330275A1 (en) | Exhaust Purification System for Internal Combustion Engine | |
| CN215927520U (en) | Urea solution supply device and vehicle | |
| WO2012163895A1 (en) | Method for heating an scr system using two resistive heating elements | |
| CN105697106A (en) | Urea heating device for efficient SCR, and use method thereof | |
| CN110617127B (en) | DOC rapid ignition heating device and method for diesel engine heat management system | |
| CN113924410B (en) | Aftertreatment system, control method for aftertreatment system, and vehicle | |
| CN114263517A (en) | Exhaust gas aftertreatment system, control method thereof and vehicle | |
| CN109339910A (en) | Steady state control system, after-treatment system and control method | |
| EP3650663B1 (en) | An aftertreatment system for a vehicle | |
| US9567917B2 (en) | Method for controlling an engine system | |
| US11248506B2 (en) | Dual purpose heating and cooling element for exhaust aftertreatment system | |
| US11225894B1 (en) | Exhaust aftertreatment system with thermally controlled reagent doser | |
| JP7002392B2 (en) | Exhaust gas purification device | |
| KR20180067120A (en) | Method for Increasing Urea Decomposing Resolution and Urea Dosing System thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |