CN219711626U - High-pressure vehicle urea solution supply module integrated with urea metering device - Google Patents
High-pressure vehicle urea solution supply module integrated with urea metering device Download PDFInfo
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- CN219711626U CN219711626U CN202321016179.0U CN202321016179U CN219711626U CN 219711626 U CN219711626 U CN 219711626U CN 202321016179 U CN202321016179 U CN 202321016179U CN 219711626 U CN219711626 U CN 219711626U
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- urea
- metering device
- urea solution
- supply module
- metering valve
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 261
- 239000004202 carbamide Substances 0.000 title claims abstract description 261
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 69
- 238000000034 method Methods 0.000 description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to a urea solution supply module for a high-pressure vehicle integrating a urea metering device, which comprises the following components: the top surface of the flange is fixedly connected with a urea solution pipe connected with a urea solution filter; the urea metering device comprises a urea metering valve fixedly connected to the top surface of the flange plate and communicated with the urea solution pipe. The urea solution supply module for the high-pressure vehicle integrates a urea metering device, and the arrangement of the urea metering device needs to consider the working temperature of the urea metering device and the problems of water resistance and convenience in after-sales maintenance. The urea metering device is arranged on the high-pressure vehicle urea liquid supply module, so that the urea heating pipe is arranged on the high-pressure vehicle urea liquid supply module, the urea metering device can be maintained to work at a proper temperature, a separate heat insulation or heating device is not required, and the protection, disassembly and maintenance of the urea metering device are very convenient to carry out on the high-pressure vehicle urea liquid supply module.
Description
Technical Field
The utility model relates to the technical field of engine exhaust emission treatment, in particular to a high-pressure urea solution supply module for a vehicle, which integrates a urea metering device.
Background
With the increasing prominence of environmental problems, energy conservation and emission reduction have become ever-endless demands for vehicles and engines, and for this reason, a series of vehicle emission standards are being put out in various countries, and are becoming more and more strict. For this purpose, internal combustion engine powered vehicles require the installation of an exhaust aftertreatment system in order to meet the emission requirements. For example, SCR (Selective Catalytic Reduction) technology, which is mainly used for catalytic treatment of pollutants such as NOx in diesel engine exhaust gas, has become a technology that is required for diesel vehicles and the like.
SCR technology requires the quantitative injection of NOx reduction reagent into the diesel exhaust, which has a 32.5% strength by weight aqueous urea solution (also called diesel exhaust treatment solution def= Diesel Exhaust Fluid, or blue addition solution AdBlue), or ammonia. In the catalytic treatment process of SCR exhaust, DEF treatment liquid is quantitatively injected into diesel engine exhaust, and is decomposed into ammonia gas at high temperature through the exhaust, and the ammonia gas is mixed with the exhaust and then enters an SCR catalytic converter, and under the action of a catalyst, the ammonia gas and NOx and the like in the engine exhaust are subjected to catalytic reduction reaction, so that the NOx is decomposed into harmless N2 and H2O. If the amount of DEF injected does not match the NOx content in the exhaust gas or the urea solution quality is not satisfactory, either the NOx cannot be fully reduced and decomposed, the emission is increased, or a large amount of ammonia remains to be discharged to the atmosphere, causing secondary pollution.
The urea solution supply module must accurately meter the amount of urea provided into the engine exhaust pipe, and at the same time effectively atomize the liquid urea to enhance the mixing and heat exchange of the urea and the engine exhaust gas, and generate pyrolysis ammonia gas which is uniformly distributed in the engine exhaust gas as much as possible for the SCR catalyst to reduce NOx in the exhaust gas.
The urea injection method of the existing SCR system is divided into a direct injection nozzle injection method and an air-assisted nozzle injection method. The direct injection nozzle consists of a urea metering valve and an adapter wrapping the urea metering valve, the nozzle is directly arranged on an engine exhaust pipe through a mounting hole on the adapter, and urea solution metered by the urea metering valve is directly injected into the exhaust pipe. The atomization effect of the urea solution is mainly realized by the front-rear pressure difference of the urea metering valve because the compressed air is not used for assisting. The disadvantages of this approach are: because the direct injection nozzle is directly arranged on the exhaust pipe, the temperature of the exhaust pipe is higher, so that the working temperature of the direct injection nozzle is higher, and the damage to parts, particularly the urea metering valve, is larger.
Disclosure of Invention
The embodiment of the utility model provides a high-pressure vehicle urea solution supply module integrated with a urea metering device, which aims to solve the problem that a urea metering valve in the related art has higher working environment and is more damaged.
The embodiment of the utility model provides a urea solution supply module for a high-pressure vehicle integrating a urea metering device, which comprises the following components:
the top surface of the flange is fixedly connected with a urea solution pipe connected with a urea solution filter;
the urea metering device comprises a urea metering valve fixedly connected to the top surface of the flange plate and communicated with the urea solution pipe.
In some embodiments: the urea metering device further comprises a metering valve front mounting seat and a metering valve rear mounting seat, a liquid inlet of the urea metering valve is connected with the metering valve front mounting seat, and a liquid outlet of the urea metering valve is connected with the metering valve rear mounting seat.
In some embodiments: the front mounting seat of the metering valve is connected with a urea solution pipe, and the rear mounting seat of the metering valve is provided with a liquid outlet pipe;
the liquid inlet of the urea metering valve is in sealing connection with the front mounting seat of the metering valve through a sealing ring, and the liquid outlet of the urea metering valve is in sealing connection with the rear mounting seat of the metering valve through a sealing ring.
In some embodiments: the front mounting seat of the metering valve and the rear mounting seat of the metering valve are detachably and fixedly connected with the flange plate through bolts.
In some embodiments: the top surface of the flange plate is also fixedly connected with an inflation inlet, an exhaust outlet, a heating pipe inlet and a heating pipe outlet, wherein the heating pipe inlet and the heating pipe outlet are connected with a heating pipeline.
In some embodiments: the heating pipeline is of a U-shaped structure, and the bottom of the heating pipe is provided with a circular arc section which surrounds the periphery of the urea solution filter.
In some embodiments: the urea liquid level sensor is characterized by further comprising a urea liquid level sensor connected to the flange, and a sensor plug connected with the urea liquid level sensor is arranged at the top of the flange.
In some embodiments: the urea solution filter and the urea solution pipe are fixed in the urea box.
In some embodiments: the flange plate is in sealing connection with the top opening of the urea box through a sealing ring, and the periphery of the flange plate is fixedly connected with the urea box through a plurality of bolts.
In some embodiments: the urea quality sensor is positioned beside the urea solution filter.
The technical scheme provided by the utility model has the beneficial effects that:
the embodiment of the utility model provides a urea solution supply module for a high-pressure vehicle, which is integrated with a urea metering device, wherein a flange is arranged on the urea solution supply module for the high-pressure vehicle, and a urea solution pipe connected with a urea solution filter is fixedly connected to the top surface of the flange; the urea metering device comprises a urea metering valve fixedly connected to the top surface of the flange plate and communicated with the urea solution pipe.
Therefore, the urea solution supply module for the high-pressure vehicle integrates a urea metering device, and the arrangement of the urea metering device needs to consider the working temperature of the urea metering device and the convenience problems of water resistance and after-sales maintenance. And the urea metering device is arranged on the urea liquid supply module for the high-pressure vehicle, so that the urea metering device can be far away from the high-temperature environment of the post-processor, and the service life of the urea metering device is prolonged.
The urea heating pipe is arranged on the high-pressure vehicle urea liquid supply module, so that the urea metering device can be maintained to work at a proper temperature, a separate heat insulation or heating device is not required to be arranged, and the high-pressure vehicle urea liquid supply module is very convenient to protect, disassemble and maintain the urea metering device. And after the urea metering device is integrated and arranged, the urea nozzle can be a mechanical urea nozzle, a urea nozzle cooling pipeline can be omitted, the cost is reduced, the reliability is improved, and meanwhile, the urea nozzle is simpler, more convenient and easier to arrange.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a structure of an embodiment of the present utility model;
FIG. 2 is a left side view of the structure of an embodiment of the present utility model;
FIG. 3 is a perspective view of an embodiment of the present utility model;
fig. 4 is a structural cross-sectional view of an embodiment of the present utility model.
Reference numerals:
1. a flange plate; 2. a urea solution pipe; 3. a urea solution filter; 4. a urea metering device; 5. an inlet of the heating pipe; 6. a heating pipe outlet; 7. a heating pipeline; 8. an inflation inlet; 9. an exhaust port; 10. urea level sensor; 11. a sensor plug; 12. a urea metering valve; 13. a metering valve front mounting seat; 14. and a metering valve rear mounting seat.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment of the utility model provides a urea solution supply module for a high-pressure vehicle, which integrates a urea metering device, and can solve the problem that a urea metering valve in the related art has higher working environment and is more damaged.
Referring to fig. 1 to 4, an embodiment of the present utility model provides a urea solution supply module for a high-pressure vehicle integrated with a urea metering device, including:
the flange plate 1, this flange plate 1 is disc stainless steel flange plate, and the top surface fixedly connected with urea solution pipe 2 at flange plate 1, urea solution pipe 2 keep away from flange plate 1's one end and be connected with urea solution filter 3.
The urea metering device 4, the urea metering device 4 includes a urea metering valve 12 fixedly connected to the top surface of the flange plate 1 and communicated with the urea solution pipe 2, and the urea metering valve 12 is used for metering the urea solution discharged from the urea solution pipe 2 and supplying the urea solution to a urea nozzle in the post-processor.
The urea solution supply module for a high-pressure vehicle of the embodiment of the utility model integrates the urea metering device 4, and the arrangement of the urea metering device 4 needs to consider the working temperature thereof and the problems of water resistance and convenience in after-sales maintenance.
According to the utility model, the urea metering device 4 is arranged on the high-pressure vehicle urea liquid supply module, so that the arrangement requirement can be well met, and the high-pressure vehicle urea liquid supply module is provided with the urea heating pipe, so that the urea metering device 4 can be maintained to work at a proper temperature.
The urea metering device 4 is arranged on the high-pressure vehicle urea liquid supply module without separately arranging a heat insulation or heating device, and the protection, disassembly and maintenance of the urea metering device 4 are very convenient to carry out on the high-pressure vehicle urea liquid supply module.
And the urea metering device 4 is integrated and arranged behind the urea liquid supply module for the high-pressure vehicle, the urea nozzle can be a mechanical urea nozzle, a urea nozzle cooling pipeline can be omitted, the cost is reduced, the reliability is improved, and meanwhile, the urea nozzle is simpler, more convenient and easier to arrange.
In some alternative embodiments: referring to fig. 4, an embodiment of the present utility model provides a urea solution supply module for a high-pressure vehicle integrated with a urea metering device, where the urea metering device 4 of the urea solution supply module for a high-pressure vehicle further includes a metering valve front mount 13 and a metering valve rear mount 14. The liquid inlet of the urea metering valve 12 is connected with a metering valve front mounting seat 13, and the liquid outlet of the urea metering valve 12 is connected with a metering valve rear mounting seat 14.
The front mounting seat 13 of the metering valve is connected with the urea solution pipe 2, and the rear mounting seat 14 of the metering valve is provided with a liquid outlet pipe which is used for being connected with a urea spray head in the post-processor through a pipeline. The liquid inlet of the urea metering valve 12 is in sealing connection with the front metering valve mounting seat 13 through a sealing ring, and the liquid outlet of the urea metering valve 12 is in sealing connection with the rear metering valve mounting seat 14 through a sealing ring.
In order to facilitate replacement and maintenance of the urea metering valve 12, the metering valve front mounting seat 13 and the metering valve rear mounting seat 14 connected with the urea metering valve 12 are detachably and fixedly connected with the flange plate 1 through bolts.
In some alternative embodiments: referring to fig. 1 to 4, the embodiment of the utility model provides a high-pressure urea solution supply module for a vehicle, which is integrated with a urea metering device, wherein the top surface of a flange plate 1 of the high-pressure urea solution supply module for a vehicle is also fixedly connected with an air charging port 8 and an air discharging port 9, and a heating pipe inlet 5 and a heating pipe outlet 6 which are connected with a heating pipe 7.
When the urea tank needs to build pressure, gas enters the urea tank through the charging port 8. When the urea tank needs to be depressurized, the gas is discharged through the exhaust port 9. When the air pressure exists in the urea tank, the air pressure pushes urea solution in the urea tank to enter the urea solution pipe 2 from the urea solution filter 3, and then sequentially enters the front metering valve mounting seat 13, the urea metering valve 12 and the rear metering valve mounting seat 14.
The heating pipe inlet 5 and the heating pipe outlet 6, the heating pipeline 7 is welded on the flange plate 1 to form a heat exchange waterway, and circulating water is used for thawing urea solution in the urea tank. When urea solution freezes, cooling water passes through heating pipe import 5 and heating pipe export 6, and heating pipeline 7 circulation heats urea solution in the urea jar, and heating pipeline 7 is U-shaped structure, and the bottom of heating pipeline 7 is equipped with the circular arc section around the periphery at urea solution filter 3, guarantees that urea is first to defrost near urea solution filter 3.
In some alternative embodiments: referring to fig. 1 to 4, an embodiment of the present utility model provides a urea solution supply module for a high-pressure vehicle integrated with a urea metering device, which further includes a urea level sensor 10 connected to a flange 1, and a sensor plug 11 connected to the urea level sensor 10 is provided at the top of the flange 1. The urea level sensor 10 detects that the urea level is lower than a set value and sends out an alarm signal.
The urea solution filter device further comprises a urea box (not shown in the figure), wherein the flange plate 1 is in sealing connection with the top opening of the urea box, and the urea solution filter 3, the urea solution pipe 2 and the heating pipeline 7 are all fixed in the urea box. The flange plate 1 is in sealing connection with the top opening of the urea box through a sealing ring, and the periphery of the flange plate 1 is fixedly connected with the urea box through a plurality of bolts. A temperature sensor (not shown) for detecting the temperature of the urea solution and a urea quality sensor (not shown) for detecting the quality of the urea solution are also provided, and the urea quality sensor is located beside the urea solution filter 3. When the temperature of the urea solution reaches a set value, the temperature sensor sends out an alarm signal. The urea quality sensor is used for detecting the quality of the urea solution.
Principle of operation
The embodiment of the utility model provides a urea solution supply module for a high-pressure vehicle, which is integrated with a urea metering device, wherein the urea solution supply module for the high-pressure vehicle is provided with a flange plate 1, and the top surface of the flange plate 1 is fixedly connected with a urea solution pipe 2 connected with a urea solution filter 3; the urea metering device 4 comprises a urea metering valve 12 fixedly connected to the top surface of the flange plate 1 and communicated with the urea solution pipe 2.
Therefore, the urea solution supply module for high-pressure vehicles of the present utility model integrates the urea metering device 4, and the arrangement of the urea metering device 4 needs to consider the working temperature thereof, and also needs to consider the problems of water resistance and convenience of after-sales maintenance. The urea metering device 4 is arranged on the urea solution supply module for the high-pressure vehicle, so that the arrangement requirement can be well met.
The urea heating pipe is arranged on the high-pressure vehicle urea liquid supply module, so that the urea metering device 4 can be maintained to work at a proper temperature, a separate heat insulation or heating device is not required to be arranged, and the protection, disassembly and maintenance of the urea metering device 4 are very convenient to carry out on the high-pressure vehicle urea liquid supply module.
And the urea metering device 4 is integrated and arranged behind the urea liquid supply module for the high-pressure vehicle, the urea nozzle can be a mechanical urea nozzle, a urea nozzle cooling pipeline can be omitted, the cost is reduced, the reliability is improved, and meanwhile, the urea nozzle is simpler, more convenient and easier to arrange.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present utility model, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A high-pressure vehicular urea solution supply module integrating a urea metering device, characterized by comprising:
the urea solution filter comprises a flange plate (1), wherein the top surface of the flange plate (1) is fixedly connected with a urea solution pipe (2) connected with a urea solution filter (3);
the urea metering device (4), urea metering device (4) are including fixed connection at ring flange (1) top surface and with urea metering valve (12) of urea solution pipe (2) intercommunication.
2. The urea solution supply module for a high-pressure vehicle integrated with a urea metering device according to claim 1, wherein:
the urea metering device (4) further comprises a metering valve front mounting seat (13) and a metering valve rear mounting seat (14), a liquid inlet of the urea metering valve (12) is connected with the metering valve front mounting seat (13), and a liquid outlet of the urea metering valve (12) is connected with the metering valve rear mounting seat (14).
3. The urea solution supply module for a high-pressure vehicle integrated with a urea metering device according to claim 2, wherein:
the front mounting seat (13) of the metering valve is connected with the urea solution pipe (2), and the rear mounting seat (14) of the metering valve is provided with a liquid outlet pipe;
the liquid inlet of the urea metering valve (12) is in sealing connection with the front mounting seat (13) of the metering valve through a sealing ring, and the liquid outlet of the urea metering valve (12) is in sealing connection with the rear mounting seat (14) of the metering valve through a sealing ring.
4. The urea solution supply module for a high-pressure vehicle integrated with a urea metering device according to claim 2, wherein:
the metering valve front mounting seat (13) and the metering valve rear mounting seat (14) are detachably and fixedly connected with the flange plate (1) through bolts.
5. The urea solution supply module for a high-pressure vehicle integrated with a urea metering device according to claim 1, wherein:
the top surface of the flange plate (1) is also fixedly connected with an air charging port (8) and an air discharging port (9), and a heating pipe inlet (5) and a heating pipe outlet (6) which are connected with a heating pipeline (7).
6. The urea solution supply module for a high-pressure vehicle integrated with a urea metering device according to claim 5, wherein:
the heating pipeline (7) is of a U-shaped structure, and an arc section surrounding the periphery of the urea solution filter (3) is arranged at the bottom of the heating pipeline (7).
7. The urea solution supply module for a high-pressure vehicle integrated with a urea metering device according to claim 1, wherein:
the urea liquid level sensor is characterized by further comprising a urea liquid level sensor (10) connected to the flange plate (1), and a sensor plug (11) connected with the urea liquid level sensor (10) is arranged at the top of the flange plate (1).
8. The urea solution supply module for a high-pressure vehicle integrated with a urea metering device according to claim 1, wherein:
the urea solution filter comprises a urea box, and is characterized by further comprising a urea box, wherein the flange plate (1) is in sealing connection with the top opening of the urea box, and the urea solution filter (3) and the urea solution pipe (2) are fixed in the urea box.
9. The urea solution supply module for a high-pressure vehicle integrated with a urea metering device according to claim 8, wherein:
the flange plate (1) is in sealing connection with the top opening of the urea box through a sealing ring, and the periphery of the flange plate (1) is fixedly connected with the urea box through a plurality of bolts.
10. The urea solution supply module for a high-pressure vehicle integrated with a urea metering device according to claim 1, wherein:
the urea solution filter also comprises a temperature sensor for detecting the temperature of the urea solution and a urea quality sensor for detecting the quality of the urea solution, wherein the urea quality sensor is positioned beside the urea solution filter (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321016179.0U CN219711626U (en) | 2023-04-28 | 2023-04-28 | High-pressure vehicle urea solution supply module integrated with urea metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321016179.0U CN219711626U (en) | 2023-04-28 | 2023-04-28 | High-pressure vehicle urea solution supply module integrated with urea metering device |
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| Publication Number | Publication Date |
|---|---|
| CN219711626U true CN219711626U (en) | 2023-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321016179.0U Active CN219711626U (en) | 2023-04-28 | 2023-04-28 | High-pressure vehicle urea solution supply module integrated with urea metering device |
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| Country | Link |
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| CN (1) | CN219711626U (en) |
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2023
- 2023-04-28 CN CN202321016179.0U patent/CN219711626U/en active Active
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