CN204283565U - Urea feeding mechanism, automotive SCR system and vehicle - Google Patents
Urea feeding mechanism, automotive SCR system and vehicle Download PDFInfo
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- CN204283565U CN204283565U CN201420677445.9U CN201420677445U CN204283565U CN 204283565 U CN204283565 U CN 204283565U CN 201420677445 U CN201420677445 U CN 201420677445U CN 204283565 U CN204283565 U CN 204283565U
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- urea
- feeding mechanism
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- tank
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- 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
Abstract
The utility model discloses a kind of urea feeding mechanism, automotive SCR system and vehicle, urea feeding mechanism comprises and holds the urea tank (1) of urea liquid and the urea pump (2) of this urea liquid of pumping, and wherein said urea pump (2) is fitted in the urea receiving cavity in described urea tank (1).Owing to urea pump being fitted in the urea tank of accommodation urea, therefore, without the need to arranging absorption, circuit lines between, thus make the convenient layout of this urea feeding mechanism, space availability ratio is high, and does not need to arrange the heating equipment on pipeline again, and cost is lower.
Description
Technical field
The utility model relates to the urea supply field of vehicle SCR systems, particularly, relates to a kind of urea feeding mechanism, uses the vehicle SCR systems of this device and use the vehicle of this system.
Background technique
Along with the upgrading controlling vehicular discharge, automotive SCR system (Selective Catalytic Reduction, selective catalytic reduction) application get more and more, ammonification gas is decomposed when it mainly relies on urea liquid to heat, with the nitrogen oxide generation reduction reaction in vehicle exhaust, be reduced to nitrogen discharge in air, thus reached the object reducing discharge.Due to the necessary raw material that urea is reprocessing reaction, therefore car load needs the urea tank of subsidiary stored urea solution and the urea pump device of pumping urea liquid.
Wherein, the function class of urea tank is similar to fuel tank, is used to the container of stored urea solution, is provided with liquid level, temperature transducer, the device such as vent valve and weep hole on its body simultaneously.Urea pump then extracts urea liquid and decomposes in pipe to be ejected into reprocessing in urea tank.In addition, because urea liquid produces crystallization when comparatively low temperature, affect the injection of urea, cause discharging not up to standard.Therefore, all need to be with heating function at urea absorption, urea return line.In prior art, urea tank and urea pump are arranged separately and are connected by absorption, return line, and wherein urea pump is fixed on urea tank support more, and from car load power taking heating, and urea tank is heated by engine coolant, passes through electromagnetic valve.
But, because needs heat urea.Need heating function be with at urea absorption, return line, cause cost to increase.Urea in urea tank also needs heating, need be equipped with the parts such as solenoid valve, cooling liquid water pipe, and like this, pipeline causes car load pipeline to move towards mixed and disorderly more, and system layout is difficult and cost is high.
Model utility content
An object of the present utility model is to provide a kind of urea feeding mechanism, and this urea feeding mechanism is rational in infrastructure ingenious, and arrangement convenience space availability ratio is high.
Another object of the present utility model is to provide a kind of automotive SCR system, and this automotive SCR system comprises the urea feeding mechanism that the utility model provides.
Another object of the present utility model provides a kind of vehicle, the automotive SCR system that this vehicle uses the utility model to provide.
To achieve these goals, according to an aspect of the present utility model, provide a kind of urea feeding mechanism, comprise and hold the urea tank of urea liquid and the urea pump of this urea liquid of pumping, described urea pump is fitted in the urea receiving cavity in described urea tank.
Preferably, described urea tank is formed with the opening be communicated with described urea receiving cavity, and described urea pump to be fitted in described urea receiving cavity by this opening and by this this opening of urea pump shutoff.
Preferably, described urea pump is provided with mounting flange, the end face of described opening is provided with shackle member, the outside of described mounting flange is also provided with chuck, mounting flange described in this chuck support and with described shackle member clamping.
Preferably, described shackle member is for circumferentially spaced multiple and be formed as hook formation respectively, described chuck is correspondingly arranged at intervals with multiple blocked hole along the circumference of described opening, this blocked hole has large aperture section circumferentially and small aperture section, the hook end of described shackle member to be entered in described blocked hole by described large aperture section and after circumferentially rotating hook lock in the section of described small aperture.
Preferably, Sealing is provided with between the end face of described mounting flange and described opening.
Preferably, described opening is arranged on the bottom of described urea tank, and the top of described urea tank is also respectively arranged with filler and the vent valve of filling urea liquid.
Preferably, described urea pump is provided with the heating equipment stretched in described urea receiving cavity.
Preferably, described urea pump comprises the electric connection exposing to described urea tank
Preferably, described urea pump is provided with liquid level detection device and/or urea quality detection device and/or temperature-detecting device, this liquid level detection device and/or urea quality detection device and/or temperature-detecting device stretch into described urea receiving cavity.
According to another aspect of the present utility model, provide a kind of automotive SCR system, this automotive SCR system comprises urea feeding mechanism, the urea feeding mechanism that described urea feeding mechanism provides for the utility model.
According to one side more of the present utility model, provide a kind of vehicle, this vehicle comprises the automotive SCR system that the utility model provides.
By technique scheme, owing to urea pump being fitted in the urea tank of accommodation urea, therefore, without the need to arranging pipeline between, therefore, this urea feeding mechanism is convenient arranges, space availability ratio is high, and does not need to arrange the heating equipment on pipeline again, and cost is lower.
Other feature and advantage of the present utility model are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is the decomposition texture schematic diagram of the urea feeding mechanism that the utility model preferred implementation provides;
Fig. 2 be the utility model preferred implementation provide urea feeding mechanism combination after structural representation, band broken section;
Fig. 3 is the structure for amplifying schematic diagram in A portion in Fig. 1;
Fig. 4 is the structure for amplifying schematic diagram in B portion in Fig. 2;
Fig. 5 is the plan structure schematic diagram of the chuck that the utility model preferred implementation provides.
Description of reference numerals
1 urea tank 2 urea pump
3 electric connection 4 liquid level detection devices
11 opening 12 shackle member
13 filler 14 vent valves
21 mounting flange 22 Sealings
23 chuck 231 blocked holes
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
In the utility model, when not doing contrary explanation, the situation that the urea feeding mechanism that the noun of locality used normally provides at the utility model as " upper and lower, the end, top " normally works is undefined, particularly can with reference to the page shown in figure 1 and Fig. 2." inside and outside " then refers to the interior and outer of corresponding part profile.
As shown in Figures 1 to 4, the utility model provides a kind of urea feeding mechanism, uses the automotive SCR system of this urea feeding mechanism and use the vehicle of this system.Wherein, urea feeding mechanism comprises and holds the urea tank 1 of urea liquid and the urea pump 2 of this urea liquid of pumping, decomposes in pipe, complete the reduction reaction with tail gas spraying urea liquid can be mapped to reprocessing.In order to realize the purpose of this utility model, urea pump 2 is fitted in the urea receiving cavity in urea tank 1.Like this, without the need to arranging the pipelines such as absorption, backflow between urea pump and urea tank.Therefore, urea feeding mechanism that the utility model provides is convenient to be arranged, space availability ratio is high, and is also no longer necessary for the pipelines such as absorption, backflow and arranges heating equipment, and cost is lower.
It should be noted that, the aforesaid way that can realize above-mentioned technical conceive has multiple, this body structure and assembly structure each other etc. of such as urea pump and urea tank, therefore the utility model for convenience of description, introduce preferred implementation wherein at this, this preferred implementation is only not limited to the utility model for illustration of the utility model.
In preferred implementation of the present utility model, conveniently assemble urea pump 2, as depicted in figs. 1 and 2, preferably, urea tank 1 is formed with the opening 11 be communicated with urea receiving cavity, and urea pump 2 to be fitted in urea receiving cavity by this opening 11 and by this opening 11 of urea pump 2 shutoff.Like this; not only conveniently can realize the sealing that urea pump 2 is fitted in urea receiving cavity but also can ensures urea receiving cavity; in some mode of execution, overall urea pump 2 can also be placed in urea tank 1, also should drop in protection domain of the present utility model for this type of mode of texturing.
Particularly, as one assembling mode, urea pump 2 is provided with mounting flange 21, the end face of opening 11 is provided with shackle member 12, the outside of mounting flange 21 is also provided with chuck 23, this chuck 23 support mounting flange 21 and with shackle member 12 clamping.Namely, the quick assembling of urea pump 2 and urea tank 1 is realized by snap fit, wherein as shown in Figure 5, chuck 23 can be formed as ring structure, the main body of urea pump 2 through the center of this chuck 23 and by chuck 23 support mounting flange 21, can stablize support urea pump 2 with the clamping by chuck 23 and urea tank 1.
More specifically, as shown in Figures 3 to 5, shackle member 12 is spaced multiple and be formed as hook formation respectively along the circumference of opening 11, namely there is hook end, chuck 23 is correspondingly circumferentially arranged at intervals with multiple blocked hole 231, this blocked hole 231 has large aperture section circumferentially and small aperture section, like this, by the size relationship of the size and large aperture section and small aperture section that rationally arrange hook end, the hook end of shackle member 12 can be entered in blocked hole 231 by large aperture section and after circumferentially rotating hook lock in the section of small aperture, thus complete the clamping of chuck 23 and urea tank 1.And further, in order to ensure the sealing of urea receiving cavity, Sealing 22 can also be set between mounting flange 21 and the end face of opening 11, such as seal ring etc.
In other embodiments; urea pump 2 and urea tank 1 can also adopt the mode of other such as Flange joint to be removably connected; in addition; in the snap fit that the utility model provides, also can have various deformation, all should drop in protection domain of the present utility model for this type of mode of texturing.
In order to not affect the filling of urea liquid, as depicted in figs. 1 and 2, in preferred implementation of the present utility model, opening 11 is arranged on the bottom of urea tank 1, and the top of urea tank 1 is also respectively arranged with filling urea and is easy to filler 13 and vent valve 14.Wherein, filler 13 can have the sealing configurations such as sealing cover, and vent valve 14 can have gas-guide pipeline, to avoid at air pressure the impact in the filling of urea liquid and suction process.Wherein, filler 13 and vent valve 14 can for having various structure well known in the art, and the utility model does not limit this.
In preferred implementation of the present utility model, in order to ensure to produce to prevent crystallization the heating of urea liquid, preferably, urea pump 2 is provided with the heating equipment stretched in urea receiving cavity, this heating equipment is preferably Electric heating, such as adopt resistance wire or electric heating cover etc. as heating element, the utility model does not limit this, therefore, can also be heated the urea in urea receiving cavity by this heating equipment simultaneously, do not need to arrange heating equipment for urea tank 1 separately, structure is simple, and cost is lower.
Conveniently for the pumping mechanism of urea pump 2 and heating equipment are powered, preferably, urea pump 2 comprises the electric connection 3 exposing to urea tank 1, is connected on the overall wire sheaves of vehicle to facilitate, thus is powered.Therefore, the urea feeding mechanism that the utility model provides can be installed on vehicle easily, conveniently can either arrange the body of urea feeding mechanism, can conveniently be powered again, practical.
In addition, preferably, as shown in Figure 1, urea pump 2 is also provided with liquid level detection device 4 (such as liquid level sensor or level meter) and/or urea quality detection device (such as urea quality sensor, do not show) and/or the various detection device such as temperature-detecting device (such as temperature transducer, does not show), these detection devices all stretch in urea receiving cavity, thus do not need to arrange separately detection device for urea tank 1 again, further simplify structure.The model that the urea pump 2 wherein adopted in the utility model can be produced for " Emitec " (according to meter Tai Ke) company is the urea pump of GEN III-OX-24, as long as the distortion that wherein can realize the urea pump 2 of the utility model object all should drop in protection domain of the present utility model.
To sum up, the utility model, by urea tank 1 and urea pump 2 being become one, achieves modular assembling, facilitate arranging on car load of automotive SCR system, and cost is lower.Therefore, there is higher practicability and promotional value.
Below preferred implementation of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (11)
1. a urea feeding mechanism, comprise and hold the urea tank (1) of urea liquid and the urea pump (2) of this urea liquid of pumping, it is characterized in that, described urea pump (2) is fitted in the urea receiving cavity in described urea tank (1).
2. urea feeding mechanism according to claim 1, it is characterized in that, described urea tank (1) is formed with the opening (11) be communicated with described urea receiving cavity, and described urea pump (2) to be fitted in described urea receiving cavity by this opening (11) and by this opening of this urea pump (2) shutoff (11).
3. urea feeding mechanism according to claim 2, it is characterized in that, described urea pump (2) is provided with mounting flange (21), the end face of described opening (11) is provided with shackle member (12), the outside of described mounting flange (21) is also provided with chuck (23), mounting flange (21) described in this chuck (23) support and with described shackle member (12) clamping.
4. urea feeding mechanism according to claim 3, it is characterized in that, described shackle member (12) is spaced multiple and be formed as hook formation respectively along the circumference of described opening, described chuck (23) is correspondingly circumferentially arranged at intervals with multiple blocked hole (231), this blocked hole (231) has large aperture section circumferentially and small aperture section, the hook end of described shackle member (12) to be entered in described blocked hole (231) by described large aperture section and after circumferentially rotating hook lock in the section of described small aperture.
5. urea feeding mechanism according to claim 3, is characterized in that, is provided with Sealing (22) between the end face of described mounting flange (21) and described opening (11).
6. urea feeding mechanism according to claim 2, it is characterized in that, described opening (11) is arranged on the bottom of described urea tank (1), and the top of described urea tank (1) is also respectively arranged with filler (13) and the vent valve (14) of filling urea liquid.
7. urea feeding mechanism according to claim 1, is characterized in that, described urea pump (2) is provided with the heating equipment stretched in described urea receiving cavity.
8. urea feeding mechanism according to claim 1, is characterized in that, described urea pump (2) comprises the electric connection (3) exposing to described urea tank (1).
9. urea feeding mechanism according to claim 1, it is characterized in that, described urea pump (2) is provided with liquid level detection device (4) and/or urea quality detection device and/or temperature-detecting device, this liquid level detection device (4) and/or urea quality detection device and/or temperature-detecting device stretch into described urea receiving cavity.
10. an automotive SCR system, this SCR system comprises urea feeding mechanism, it is characterized in that, described urea feeding mechanism is for according to the urea feeding mechanism in claim 1-9 described in any one.
11. 1 kinds of vehicles, is characterized in that, this vehicle comprises automotive SCR system according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420677445.9U CN204283565U (en) | 2014-11-13 | 2014-11-13 | Urea feeding mechanism, automotive SCR system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420677445.9U CN204283565U (en) | 2014-11-13 | 2014-11-13 | Urea feeding mechanism, automotive SCR system and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN204283565U true CN204283565U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420677445.9U Active CN204283565U (en) | 2014-11-13 | 2014-11-13 | Urea feeding mechanism, automotive SCR system and vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863791A (en) * | 2016-05-13 | 2016-08-17 | 安徽江淮汽车股份有限公司 | SCR reducer storage device |
| WO2018072557A1 (en) * | 2016-10-21 | 2018-04-26 | 天纳克（苏州）排放系统有限公司 | Urea pump module |
| CN108495981A (en) * | 2015-12-10 | 2018-09-04 | 大陆汽车有限公司 | Case system for reducing agent |
| CN108533370A (en) * | 2018-03-26 | 2018-09-14 | 安徽江淮汽车集团股份有限公司 | A kind of integrated system of urea tank and metering pump |
-
2014
- 2014-11-13 CN CN201420677445.9U patent/CN204283565U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108495981A (en) * | 2015-12-10 | 2018-09-04 | 大陆汽车有限公司 | Case system for reducing agent |
| CN105863791A (en) * | 2016-05-13 | 2016-08-17 | 安徽江淮汽车股份有限公司 | SCR reducer storage device |
| WO2018072557A1 (en) * | 2016-10-21 | 2018-04-26 | 天纳克（苏州）排放系统有限公司 | Urea pump module |
| CN108533370A (en) * | 2018-03-26 | 2018-09-14 | 安徽江淮汽车集团股份有限公司 | A kind of integrated system of urea tank and metering pump |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 102206, Beijing, Shahe, Changping District Town, Sha Yang Road, Lao Wan Village North Patentee after: Beiqi Futian Automobile Co., Ltd. Address before: 102206 Changping District City, Shahe, Sha Yang Road, Beijing Patentee before: Beiqi Futian Automobile Co., Ltd. |