CN203570429U - Automobile ternary catalytic reduction device - Google Patents
Automobile ternary catalytic reduction device Download PDFInfo
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- CN203570429U CN203570429U CN201320715390.1U CN201320715390U CN203570429U CN 203570429 U CN203570429 U CN 203570429U CN 201320715390 U CN201320715390 U CN 201320715390U CN 203570429 U CN203570429 U CN 203570429U
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- Prior art keywords
- steam
- automobile
- catalytic reduction
- reduction device
- element catalytic
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- 238000010531 catalytic reduction reaction Methods 0.000 title claims abstract description 46
- 238000004140 cleaning Methods 0.000 claims abstract description 89
- 230000009467 reduction Effects 0.000 claims abstract description 37
- 238000006722 reduction reaction Methods 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000003860 storage Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 20
- 238000010926 purge Methods 0.000 claims description 19
- 239000003599 detergent Substances 0.000 claims description 17
- 238000003384 imaging method Methods 0.000 claims description 16
- 230000005855 radiation Effects 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 239000010865 sewage Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000037452 priming Effects 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 14
- 239000003054 catalyst Substances 0.000 abstract description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 abstract description 4
- 239000011593 sulfur Substances 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 2
- 239000011574 phosphorus Substances 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 238000005406 washing Methods 0.000 description 17
- 239000003795 chemical substances by application Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000003018 phosphorus compounds Chemical class 0.000 description 2
- 239000012629 purifying agent Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 206010065954 Stubbornness Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
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- 238000005859 coupling reaction Methods 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to an automobile ternary catalytic reduction device. The automobile ternary catalytic reduction device comprises a cleaning system and a control system, and further comprises a steam reduction system and a vacuum negative pressure system connected with the tail end of an automobile exhaust outlet. Compared with the prior art, the automobile ternary catalytic reduction device can effectively remove stubborn carbon deposition, sulfur-containing and phosphorus-containing compounds on the surface of catalysts of a ternary catalyst, improves the cleaning effect and efficiency, enables the ternary catalyst to be restored to the good performance state and reduces emissions of tail gas, meanwhile, the device is further provided with the vacuum negative pressure system, and can effectively avoid influence of water steam generated in the cleaning process on an automobile engine.
Description
Technical field
The utility model relates to automobile mechanical technical field, relates in particular to a kind of automobile three-element catalytic reduction device that is used for cleaning automobile three-way catalysts.
Background technique
The ternary catalyzing unit of automobile is to improve motor vehicle emission, reduce the vitals of automobile exhaust pollution, its outside utilizes double-deck stainless sheet metal to make tubular, in double-layer plate interlayer, thermoinsulation material is housed---asbestos fiber felt, and the inner purifying agent that is equipped with in the middle of netted dividing plate.When motor car engine is passed through outlet pipe exhaust, when tri-kinds of gases of CO, HC and NOx pass through the purifying agent in three-way catalytic converter, strengthened the activity of these three kinds of gases, be oxidized-reduce chemical reaction, wherein CO is at high temperature oxidized to colourless, nontoxic carbon dioxide (CO2) gas, and HC is at high temperature oxidized to water (HO2) and CO2, and NOx is reduced to nitrogen (N2) and oxygen (O2), three kinds of harmful gases become innocuous gas, and the tail gas of motor vehicle emission is purified.Increase along with service time, carbon distribution in vehicle exhaust, sulfur-bearing, phosphorous compound can deposit to the catalyst surface on three-way catalytic converter carrier, cause catalyst poisoning, catalytic efficiency declines, and greatly reduces the purifying effect of ternary catalyzing unit to vehicle exhaust.
In the machine at present ternary catalyzing unit being cleaned, major part is hanging bottle type, as disclosed a kind of device of cleaning ternary catalyzing unit of hanging bottle type in the notice of authorization number Chinese utility model patent < < hanging-bottle type ternary catalyzing device cleaner > > that is CN201588699U, this device comprises the pressure gauge of band hook, mixing arrangement and washing agent delivery pipe, the end of this washing agent delivery pipe is connected on engine vacuum tube, wherein mixing arrangement comprises body, ball valve, threeway and tolerance adjusting bolt.During use, washing agent delivery pipe is connected on engine vacuum tube, start the engine, vacuum tube produces suction, in a sub-vacuum environment of " three-element catalytic washing apparatus " inner formation, after ball valve is opened, the second joint will suck three-element catalytic washing agent from washing agent storage tank, be mixed with the air that the capillary tube on the 3rd joint of three-way valve enters, form foam, enter gas-liquid mixed chamber, the washing agent foam entering in gas-liquid mixed chamber is originated along pull of vacuum, by washing agent delivery pipe, enters engine vacuum tube, and three-element catalytic washing apparatus is cleaned.This cleaner structure is simple, and product cost is low, is conducive to improve the economic benefit of automobile maintenance enterprise, but its disadvantage is: hanging bottle type washing unit generally uses the flammable washing agent of oiliness, and this kind of washing agent is poor to the sediments cleaning performance of sulfur-containing, phosphorus-containing; In addition, the clean time of this kind of washing unit is longer, and the flow velocity of washing agent is wayward, and in use motor need to be in idling device, and consume fuel, causes secondary pollution to environment.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of cleaning performance good for prior art, automobile three-element catalytic reduction device easy to use.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of automobile three-element catalytic reduction device, comprise purging system and control system, it is characterized in that: also comprise a steam reduction system and the negative pressure of vacuum system being connected with automobile exhaust air outlet end.
Described purging system comprises cleaning solution storage pressure generator for storing cleaning solution, a radiation system and for delivery of the detergent line of cleaning solution, one end of this detergent line is connected with the liquid outlet of described cleaning solution storage pressure generator and the other end is provided with a liquid outlet, and cleaning solution sprays to ternary catalyzing unit from cleaning solution storage pressure generator by liquid outlet outflow by detergent line and cleans.
The flow container pressure gauge that a pressure regulator valve is set and is used for showing this cleaning solution storage pressure generator internal pressure on described cleaning solution storage pressure generator, the bottom of this cleaning solution storage pressure generator arranges a pedestal for placed.
Described steam reduction system comprises steam generator and for delivery of the reduction pipeline of steam, one end of this reduction pipeline is provided with the other end for steam ports is connected of described steam generator the steam reduction pipe that a band sprays vapour lock.
This automobile three-element catalytic reduction device also comprises video imaging system, this video imaging system comprises camera, display device and the connecting pipeline that connects above-mentioned each parts, the parallel installation of liquid outlet on wherein said camera and described scavenge pipe, can realize the visual of cleaning process like this, the video pictures simultaneously showing by display device can directly be observed the cleaning process of ternary catalyzing unit, and cleaning performance is directly assessed.
Described control system comprises cleaning control assembly, steam reduction control unit, video imaging control unit and display module, wherein: described cleaning control assembly comprises cleaning switch, heat radiation switch and purges switch, the able to turn on or off washing function of cleaning switch like this, by the able to turn on or off heat sinking function of heat radiation switch, and by purging switch, not only can change the fluid form of cleaning solution, and can after cleaning process finishes, blow out the raffinate in pipeline, to avoid raffinate accumulation, affect device performance; Described steam reduction control unit comprises for controlling the priming valve of described filler, is used for controlling the described steam supply valve for steam ports and the steam reduction switch that is used for opening and closing steam reduction function; Described video imaging control unit comprises Video Controller and opens and closes the camera switch of described camera; Described display module comprises steam pressure gauge, power supply indicator, lack of water tutorial light and burner on light.
Compared with prior art, the utility model has the advantage of: in this three-element catalytic reduction device, steam reduction system is set, high-temperature steam reduction is cleaned and is combined with cleaning solution, can effectively remove the carbon distribution, sulfur-bearing of catalyst surface stubbornness in ternary catalyzing unit, phosphorous compound, can make ternary catalyzing unit be returned to good performance state, reduce the discharge of tail gas, and this device is directly processed ternary catalyzing unit surface contaminants, cleaning process and steam reduction process all can be carried out effective quantified controlling, have improved clean efficiency; Also configure negative pressure of vacuum system, the impact that can effectively avoid the water vapour that produces in cleaning course to produce vehicle motor simultaneously; Further, this device configuration video imaging system, whole cleaning process Real time visible, is used conveniently, effectively avoids clean dead angle, improves cleaning effect.
Accompanying drawing explanation
Fig. 1 is the perspective view of automobile three-element catalytic reduction device in the present embodiment;
Fig. 2 is the perspective view of automobile three-element catalytic reduction device other direction in the present embodiment;
Fig. 3 is the partial exploded view of automobile three-element catalytic reduction device in the present embodiment;
Fig. 4 is the perspective view of cleaning solution storage pressure generator in the present embodiment;
Fig. 5 is the perspective view of steam generator in the present embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in Fig. 1～5, a kind of automobile three-element catalytic reduction device 1 that is used for cleaning automobile three-way catalysts, comprise purging system 2, control system, steam reduction system 3 and negative pressure of vacuum system (not shown), this negative pressure of vacuum system comprises negative pressure of vacuum device, during cleaning, negative pressure of vacuum device is connected to automobile exhaust air outlet end, and it always in running orderly in cleaning process is caused damage to motor car engine with the water vapour that prevents from producing in cleaning process.
In the present embodiment, three-element catalytic reduction device 1 is long casing shape, and above-mentioned purging system 2, steam reduction system 3 and video imaging system 5 are arranged on this three-element catalytic reduction device 1 inside, particularly:
Steam reduction system 3 comprises the steam generator 31 being positioned on three-element catalytic reduction device 1 internal cavity bottom surface and the reduction pipeline that is used for delivering vapor, wherein steam generator 31 is the electric heating steam generator casing shape that is square, the upper end, left side of steam generator 31 is provided with filler 32 and supplies steam ports 33, lower end, left side is provided with sewage draining exit 34 and for controlling the blowdown valve 37 of this sewage draining exit 34, one end of reduction pipeline and being connected for steam ports 33 on steam generator 31, the other end is provided with spray vapour lock (not shown), during cleaning, high-temperature steam is by passing through reduction Pipeline transport for steam ports 33, finally by the spray vapour lock on steam reduction pipeline, ternary catalyzing unit is carried out to steam reduction.
Purging system 2 comprises for storing the cleaning solution storage pressure generator 21 of cleaning solution, radiation system (not shown), detergent line for delivery of cleaning solution, wherein cleaning solution storage pressure generator 21 is cylinder tank shape, by upper and lower two-part, by flange 24, connect and fixedly form by bolt 9, the top of this cleaning solution storage pressure generator 21 is provided with the liquid outlet 25 of output cleaning solution and is used for showing the flow container pressure gauge 26 of cleaning solution storage pressure generator 21 internal pressures, this liquid outlet 25 is connected with one end of detergent line, the other end of detergent line is provided with liquid outlet (not shown), during cleaning, cleaning solution is carried and finally by the liquid outlet on scavenge pipe, ternary catalyzing unit is cleaned by detergent line by liquid outlet, in the cleaning solution storage upper and lower two-part junction of pressure generator 21, be that flange 24 places arrange a pressure regulator valve 23, pressure regulator valve 23 upper ends arrange suction port 231, lower end arranges compressed air inlet pipe 232 and is communicated with the bottom of cleaning solution storage pressure generator 21, air enters pressure regulator valve 23 by suction port 231 like this, by pressure regulator valve 23 adjustings, forming pressurized air enters in cleaning solution storage pressure generator 21 along compressed air inlet pipe 232, thereby cleaning solution storage pressure generator 21 air pressure inside are increased obtain the wash liquid stream with certain hydraulic coupling to strengthen the cleaning performance to ternary catalyzing unit.One handle 27 across cleaning solution storage pressure generator 21 is set on flange 24, the convenient so conveniently placement that lifts to cleaning solution storage pressure generator 21, in the bottom of cleaning solution storage pressure generator 21, a pedestal for placed 28 is set simultaneously, cleaning solution storage pressure generator 21 can be placed on the end face of steam generator 31 by this pedestal for placed 28, not only make three-element catalytic reduction device 1 internal structure compacter and make in cleaning process steam generator 31 and cleaning solution storage pressure generator 21 not interfere with each other, thereby further optimize the performance of this automobile three-element catalytic reduction device.
Control system comprises cleaning control assembly, steam reduction control unit, video imaging control unit and display module.Wherein, cleaning control assembly comprises cleaning switch 45, heat radiation switch 43 and purges switch 44, the able to turn on or off washing function of cleaning switch 43 like this, and by the able to turn on or off heat sinking function of heat radiation switch 43, open purging switch 44 and can change the fluid form of cleaning solution and after cleaning finishes, blow out the raffinate in pipeline; Steam reduction control unit comprises for controlling the priming valve 36 of described filler 32, is used for controlling for the steam supply valve 35 of steam ports 33 and the steam reduction switch 41 that is used for opening and closing steam reduction function; Video imaging control unit comprises Video Controller 52 and opens and closes the camera switch 42 of camera; Display module comprises steam pressure gauge 46, power supply indicator 49, lack of water tutorial light 48 and burner on light 47.
The oblique sunken inside in upper end of three-element catalytic reduction device 1 front surface and form a platform 11, the liquid crystal display 51 of video imaging system 5 is arranged on this platform 11 tops, be convenient to like this observe cleaning processes by liquid crystal display 51, and the operation such as platform 11 easy-to-operat persons record, observation.Cleaning switch 45 in cleaning control assembly, heat radiation switch 43 and purging switch 44, steam reduction switch 41 in steam reduction control unit, camera switch 42 in video imaging control unit and display module are arranged on the front surface of three-element catalytic reduction device 1, further, heat radiation switch 43 and purging switch 44 are knob style, cleaning switch 45 is push button, thereby can regulate the heat dissipating state of three-element catalytic reduction device inside by dispel the heat switch 43 of adjustment like this, and purge switch 44 by adjusting, can make the cleaning solution of liquid outlet ejection change as required fluid form, as spray state, spray pattern and purging state, can do more perfect cleaning to ternary catalyzing unit, cleaning simultaneously can purge switch 44 by adjustment after finishing, raffinate in detergent line is blown out, and then shift out scavenge pipe, can effectively avoid like this Liquid Residue of cleaning solution in detergent line to exert an influence to the performance of parts.The left surface of three-element catalytic reduction device 1 can be opened, the convenient like this operation conditions that checks three-element catalytic reduction device 1 inner each system, and conveniently by the filler 32 on steam generator 31, to steam generator 31, add water.The rear surface of three-element catalytic reduction device 1 is run through and is provided with 4 mounting holes 13, and detergent line, steam reduction pipeline, suction tude and power supply pipe pass three-element catalytic reduction device 1 by each mounting hole respectively and expose, thus easy-to-operat.For further facilitating use, cross setting one mounting table 14 before and after three-element catalytic reduction device 1 internal cavity top, some inner members of three-element catalytic reduction device can be positioned over this, as transformer 6, safety fuse cutout 7, timing controller 8, Video Controller 52 etc., can make so interior 1 topology layout of three-element catalytic reduction device more reasonable, improve the overall performance of whole device, at the place, four angles of three-element catalytic reduction device 1 bottom surface, one roller 15 is respectively set, this can conveniently move this three-element catalytic reduction device simultaneously.
Using method is as follows: the first step, before use, first confirm that whether three-element catalytic reduction device is in normal working state, it is the whether normally demonstration of steam pressure gauge 46, power supply indicator 49, lack of water tutorial light 48, burner on light 47, then negative pressure of vacuum device is connected on the exhaust air outlet end of pending automobile, open negative pressure of vacuum device, guarantee this negative pressure of vacuum device continuous firing in whole process.
Second step, opens heat radiation switch 43, and adjusts heat radiation switch 43 until have gas to blow out in the liquid outlet of detergent line, then opens camera switch 42, makes display video image on liquid crystal display panel 51.
The 3rd step, open front cover scavenge pipe is shifted to ternary catalyzing unit, observe the video image on liquid crystal display panel 51 simultaneously, when the inner grid of the clear demonstration ternary catalyzing unit of display screen, stop mobile, now open the cleaning switch 45 on control panel, by the video image of observing on display screen, ternary catalyzing unit is cleaned, in cleaning process, can adjust as required cleaning solution flow and fluid form, after finishing, cleaning closes cleaning switch 45, open and purge switch 44 by the raffinate discharge in detergent line, shift out detergent line.
The 3rd step, opens steam cock 41, when steam pressure gauge 46 shows working pressure, steam reduction pipeline is moved into ternary catalyzing unit front end, and high-temperature steam is entered, and after steam reduction number minute, removes steam tube, closes three-element catalytic reduction device.
The 4th step, recovers vehicle, ato unit, and idle running 2 minutes, treats that vehicle operating stablizes laggard walking along the street examination.
Claims (10)
1. an automobile three-element catalytic reduction device, comprises purging system and control system, it is characterized in that: also comprise a steam reduction system and the negative pressure of vacuum system being connected with automobile exhaust air outlet end.
2. automobile three-element catalytic reduction device according to claim 1, it is characterized in that: described purging system comprises cleaning solution storage pressure generator for storing cleaning solution, a radiation system and for delivery of the detergent line of cleaning solution, one end of this detergent line is connected with the liquid outlet of described cleaning solution storage pressure generator and the other end is provided with a liquid outlet.
3. automobile three-element catalytic reduction device according to claim 2, it is characterized in that: the flow container pressure gauge that a pressure regulator valve is set and is used for showing this cleaning solution storage pressure generator internal pressure on described cleaning solution storage pressure generator, the bottom of this cleaning solution storage pressure generator arranges a pedestal for placed.
4. automobile three-element catalytic reduction device according to claim 1, it is characterized in that: described steam reduction system comprises steam generator and for delivery of the reduction pipeline of steam, one end of this reduction pipeline and described steam generator for steam ports is connected, the other end is provided with a spray vapour lock.
5. automobile three-element catalytic reduction device according to claim 4, it is characterized in that: described steam generator is electric heating steam generator, the upper end of this steam generator is provided with a filler and described for steam ports, and the blowdown valve that lower end is provided with a sewage draining exit and is used for controlling this sewage draining exit.
6. automobile three-element catalytic reduction device according to claim 1, it is characterized in that: also comprise video imaging system, this video imaging system comprises camera, display device and the connecting pipeline that connects above-mentioned each parts, the parallel installation of liquid outlet in wherein said camera and described detergent line.
7. according to the automobile three-element catalytic reduction device described in the arbitrary claim of claim 1～6, it is characterized in that: described control system comprises cleaning control assembly, steam reduction control unit, video imaging control unit and display module.
8. automobile three-element catalytic reduction device according to claim 7, is characterized in that: described cleaning control assembly comprises cleaning switch, heat radiation switch and purges switch.
9. automobile three-element catalytic reduction device according to claim 7, it is characterized in that: described steam reduction control unit comprises for controlling the priming valve of described filler, is used for controlling the described steam supply valve for steam ports and the steam reduction switch that is used for opening and closing steam reduction function.
10. automobile three-element catalytic reduction device according to claim 7, it is characterized in that: described video imaging control unit comprises the camera switch of Video Controller and the described camera of keying, and described display module comprises steam pressure gauge, power supply indicator, lack of water tutorial light and burner on light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320715390.1U CN203570429U (en) | 2013-11-14 | 2013-11-14 | Automobile ternary catalytic reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320715390.1U CN203570429U (en) | 2013-11-14 | 2013-11-14 | Automobile ternary catalytic reduction device |
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| Publication Number | Publication Date |
|---|---|
| CN203570429U true CN203570429U (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320715390.1U Expired - Lifetime CN203570429U (en) | 2013-11-14 | 2013-11-14 | Automobile ternary catalytic reduction device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203570429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670705A (en) * | 2013-11-14 | 2014-03-26 | 宁波行泰商贸有限公司 | Ternary catalytic reduction device of automobile |
-
2013
- 2013-11-14 CN CN201320715390.1U patent/CN203570429U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670705A (en) * | 2013-11-14 | 2014-03-26 | 宁波行泰商贸有限公司 | Ternary catalytic reduction device of automobile |
| CN103670705B (en) * | 2013-11-14 | 2016-05-11 | 宁波行泰环保科技有限公司 | A kind of automobile three-element catalytic reduction apparatus |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO HANGTAI ENVIRONMENTAL PROTECTION TECHNOLOGY Free format text: FORMER NAME: NINGBO HANGTAI COMMERCE AND TRADE CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 315000 C block, No. 123, Zhenning West Road, Zhenhai District, Zhejiang, Ningbo, 2 Patentee after: NINGBO HANGTAI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 315021 Zhejiang province Jiangbei District of Ningbo Huaye Street No. 113 Patentee before: NINGBO HANGTAI COMMERCE AND TRADE Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |