CN205135765U - Purification unit behind car three way catalyst converter - Google Patents
Purification unit behind car three way catalyst converter Download PDFInfo
- Publication number
- CN205135765U CN205135765U CN201520849668.3U CN201520849668U CN205135765U CN 205135765 U CN205135765 U CN 205135765U CN 201520849668 U CN201520849668 U CN 201520849668U CN 205135765 U CN205135765 U CN 205135765U
- Authority
- CN
- China
- Prior art keywords
- oxygen sensor
- valve body
- air pump
- catalyst converter
- way catalyst
- 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.)
- Expired - Fee Related
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model provides a purification unit behind car three way catalyst converter, including preceding oxygen sensor, three way catalyst converter, back oxygen sensor, vice silencer and main muffler, preceding oxygen sensor front end passes through the trachea to be connected with automobile engine, and preceding oxygen sensor, three way catalyst converter, back oxygen sensor, vice silencer, main muffler connect gradually, and this purification unit still includes a valve body and a miniature air pump, the valve body sets up between back oxygen sensor and vice silencer, and miniature air pump is connected with the valve body. Compared with the prior art, the utility model discloses an add a miniature air pump and a check valve etc. In exhaust system, the effect is inputed the air at the engine during operation in order to be higher than discharge pressure, participate in the aftertreatment of waste gas, purifies remaining harmful gas for harmless gas, improves tail gas treatment efficiency to need not increase an one -level catalyst converter more, effectively reduce manufacturing cost.
Description
Technical field
The utility model relates to a kind of automobile muffler, especially relates to a kind of automobile three-way catalysts after-purification treatment device.
Background technique
Current, exhaust system is in order to adapt to environmental requirement, be forced in exhaust front end and install ternary catalyzing unit additional, at high operating temperatures, noble metal in catalyst converter accelerates decomposition and the regrouping process (i.e. oxidation reaction and reduction reaction) of the harmful gases such as CO, HC and NOx in gas, and above several toxic and harmful is become nontoxic CO
2, H
2o and N
2, be catalytic purification process.And one stage catalyzing device is difficult to reach desirable purification ratio in reality, in order to adapt to more harsh requirement, add upper level catalyst converter in rear end again, in the hope of reaching the object of purification further.But there is following defect in the meeting again increasing one stage catalyzing device: 1. the increase of cost; 2. exhaust back pressure increases; 3. oil consumption also corresponding increase; 4. power drop; 5. the temperature of whole vent systems raises.Therefore, be necessary to provide a kind for the treatment of device being reached redox effect by additional oxygenation equally based on above defect.
Summary of the invention
The utility model is the deficiency for above-mentioned technology, a kind of automobile three-way catalysts after-purification treatment device is provided, by having set up micro air pump in current exhaust system, one-way valve etc., utilize when engine operation by air with higher than exhaust pressure input, be innocuous gas by residual cleaning harmful gas.
The technical solution adopted in the utility model is as follows: a kind of automobile three-way catalysts after-purification treatment device, comprise front lambda sensor, ternary catalyzing unit, post oxygen sensor, secondary silencing apparatus and main muffler, described front lambda sensor front end is connected with motor car engine by tracheae, front lambda sensor, ternary catalyzing unit, post oxygen sensor, secondary silencing apparatus, main muffler connect successively, this purifying processing device also comprises a valve body and a micro air pump, described valve body is arranged between post oxygen sensor and secondary silencing apparatus, and micro air pump is connected with valve body.
Further, described micro air pump is also connected with a storage battery.
Further, described valve body is one-way valve.
Compared with prior art, the utility model by setting up a micro air pump and an one-way valve etc. in vent systems, effect be when engine operation by air to input higher than exhaust pressure, participate in the reprocessing of waste gas, be innocuous gas by residual cleaning harmful gas, improve vent gas treatment efficiency, thus do not need many increases one stage catalyzing device, effectively reduce cost of production.
Accompanying drawing explanation
Accompanying drawing 1 is the main TV structure schematic diagram of described automobile three-way catalysts after-purification treatment device of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually, below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As shown in Figure 1, a kind of automobile three-way catalysts after-purification treatment device, comprise front lambda sensor 1, ternary catalyzing unit 2, post oxygen sensor 3, secondary silencing apparatus 4 and main muffler 5, described front lambda sensor 1 front end is connected with motor car engine 9 by tracheae, front lambda sensor 1, ternary catalyzing unit 2, post oxygen sensor 3, secondary silencing apparatus 4, main muffler 5 connects successively, this purifying processing device also comprises valve body 6 and a micro air pump 7, described valve body 6 is arranged between post oxygen sensor 3 and secondary silencing apparatus 4, micro air pump 7 is connected with valve body 6, wherein, valve body 6 is preferably one-way valve, micro air pump 7 is also connected with a storage battery 8, storage battery 8 is for providing power supply to micro air pump 7 separately.
Working principle of the present utility model is as follows: when the high pressure exhaust gas of motor enters ternary catalyzing unit 2 through tracheae, after catalysis, most of gas all changes into innocuous gas, but still have the remaining harmful gas of fraction to exist, now, micro air pump 7 sprays into air by one-way valve in pipeline, oxygen atom in air just can continue to be about in the environment of about 500 DEG C in temperature be oxidized, reduction reaction, be innocuous gas by residual cleaning harmful gas.
The utility model by setting up a micro air pump and an one-way valve etc. in vent systems, effect be when engine operation by air to input higher than exhaust pressure, participate in the reprocessing of waste gas, oxygen atom in air just can continue to be about in the environment of about 500 DEG C in temperature be oxidized, reduction reaction, be innocuous gas by residual cleaning harmful gas, improve vent gas treatment efficiency, thus do not need many increases one stage catalyzing device, effectively reduce cost of production.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. an automobile three-way catalysts after-purification treatment device, comprise front lambda sensor, ternary catalyzing unit, post oxygen sensor, secondary silencing apparatus and main muffler, described front lambda sensor front end is connected with motor car engine by tracheae, front lambda sensor, ternary catalyzing unit, post oxygen sensor, secondary silencing apparatus, main muffler connect successively, it is characterized in that: this purifying processing device also comprises a valve body and a micro air pump, described valve body is arranged between post oxygen sensor and secondary silencing apparatus, and micro air pump is connected with valve body.
2. automobile three-way catalysts after-purification treatment device according to claim 1, is characterized in that: described micro air pump is also connected with a storage battery.
3. automobile three-way catalysts after-purification treatment device according to claim 1, is characterized in that: described valve body is one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520849668.3U CN205135765U (en) | 2015-10-28 | 2015-10-28 | Purification unit behind car three way catalyst converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520849668.3U CN205135765U (en) | 2015-10-28 | 2015-10-28 | Purification unit behind car three way catalyst converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135765U true CN205135765U (en) | 2016-04-06 |
Family
ID=55621567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520849668.3U Expired - Fee Related CN205135765U (en) | 2015-10-28 | 2015-10-28 | Purification unit behind car three way catalyst converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205135765U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322145A (en) * | 2020-03-31 | 2020-06-23 | 广西玉柴机器股份有限公司 | Control method and system for realizing ultralow emission of gas engine |
| CN112855316A (en) * | 2021-01-15 | 2021-05-28 | 李达锐 | Device for improving energy-saving and emission-reducing effects of new energy automobile engine |
-
2015
- 2015-10-28 CN CN201520849668.3U patent/CN205135765U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322145A (en) * | 2020-03-31 | 2020-06-23 | 广西玉柴机器股份有限公司 | Control method and system for realizing ultralow emission of gas engine |
| CN112855316A (en) * | 2021-01-15 | 2021-05-28 | 李达锐 | Device for improving energy-saving and emission-reducing effects of new energy automobile engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20211028 |