CN2381790Y - Automotive exhaust purifying silencer with secondary air supply - Google Patents
Automotive exhaust purifying silencer with secondary air supply Download PDFInfo
- Publication number
- CN2381790Y CN2381790Y CN99208653U CN99208653U CN2381790Y CN 2381790 Y CN2381790 Y CN 2381790Y CN 99208653 U CN99208653 U CN 99208653U CN 99208653 U CN99208653 U CN 99208653U CN 2381790 Y CN2381790 Y CN 2381790Y
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- CN
- China
- Prior art keywords
- silencing apparatus
- secondary air
- utility
- leading portion
- model
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- 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 - Lifetime
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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
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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to an automotive tail gas purifying silencer with a secondary air supplement, which belongs to an automotive tail gas purifying silencer. The utility model achieves the purpose of tail gas purification by secondary combustion produced by thoroughly mixing fresh air with tail gas. The utility model is composed of an air inlet pipe, a shell body, a current guiding pipe, a silencer, a ceramic carrier, an air outlet pipe, etc. The utility model is characterized in that the front section of the shell body is fixedly connected with the air inlet pipe, and the back section of the shell body is fixedly connected with the air outlet pipe through a current regulator; the silencer is arranged on the position of an air supplement hole; sound sucking and insulating materials are arranged between the shell body and the current guiding pipe; the ceramic carrier is arranged in front of an air outlet. The utility model is suitable for purifying and silencing tail gas of various vehicles. The utility model has the advantages of high purifying rate, good silencing effect and long service life.
Description
The utility model relates to a kind of new automobile tail-gas purifying silencer with secondary air compensating, belongs to the purifying vehicle exhaust silencer.
The present existing purifying vehicle exhaust silencing apparatus of China, no matter be import or homemade, all have many defectives, mainly show 1. CO, HC compound and NO
xUnclean Deng cleaning harmful gas, do not reach the decontamination index that improve day by day State Bureau of Environmental Protection and Beijing; 2. cost an arm and a leg, and component are also wanted foreign import; Though the decontamination index that reaches national regulation that 3. has, working life is low, and energy consumption is big, and what have can only walk several thousand kilometers, and is too wide in the gap from the range of driving index of 50000 kilometers of the walkings of national regulation.In a word, existing automobile exhaust gas purifying installation awaits further to improve.
The purpose of this utility model is replenishing of my national patent of declaring last year, and its structure is simpler, can be used for the tail gas clean-up of the large, medium and small type automobile of different tail gas discharge capacities, is specially adapted to the tail gas clean-up of various compact car such as sedan car etc.
Such realization of the purpose of this utility model, it mainly is by suction tude (1), mud cover (2), leading portion (3), stage casing (5), honeycomb duct (6), back segment (15) and steam outlet pipe parts such as (9) are formed, and in enclosure interior silencing apparatus (11), ceramic monolith (7) and sound-absorbing material parts such as (12) are housed.
Its feature is that also suction tude (1) is used for attracting peripheral fresh air, and it and leading portion (3) weld together, and has many tonifying Qi hole (4) at the periphery of leading portion (3); The surface soldered of mud cover (2) and leading portion (3) together.
Its feature is that also stage casing (5) welds together by lining ring (10) and honeycomb duct (6), has many sound absorption grooves (16) on the honeycomb duct (6), tight sound-absorbing material (12) between the urceolus of stage casing (5) and the honeycomb duct (6).
Its feature is that also back segment (15) and slip ring (8) and steam outlet pipe (9) three weld together, and middle the placement wrapped up ceramic monolith (7) by protective pad (13), this ceramic monolith (7) but catalyzer on the sintering, also catalyzer on the sintering not simultaneously.
Its feature is that also the shape of cross section of this novel tail-gas purifying silencer can be circular, also can be oval-shaped, depends on the shape of ceramic monolith (7).
The purifying vehicle exhaust silencing apparatus of this band secondary air compensating is compared with existing cleaning system, and following several big characteristics are arranged.
1, its purification ratio height, the purification ratio of CO, HC reaches 100%, NO
xPurification ratio surpass 97%.
2, it has sufficient oxygenating amount and tail gas to carry out secondary combustion, thereby less demanding to the catalytic capability of catalyzer, and general domestic catalyst just can be used, and needn't use the high-quality catalyzer of import.
3, it is applicable to large quantities of Carburetor vehicles in usefulness, and needn't reequip expensive electric injection device, and its cost is about 5% of an electric injection device.
4, it adopts tonifying Qi, purification, eliminates the noise in one, and higher science content is arranged, the purification ratio height, and long service life, and price/cost is fit to national conditions than minimum.
The utility model is described in further detail below in conjunction with Fig. 1 and embodiment:
Fig. 1 is the utility model structure general assembly schematic representation.
Among the figure: (1) suction tude, (2) mud cover, (3) leading portion, (4) tonifying Qi hole, (5) stage casing (6) honeycomb duct, (7) ceramic monolith, (8) slip ring, (9) steam outlet pipe, (10) lining figure, (11) silencing apparatus, (12) sound-absorbing material, (13) protective pad, (14) back-up ring, (15) back segment, (16) guiding gutter.
As can be seen from the figure, the utility model mainly is made up of suction tude (1), mud cover (2), leading portion (3), stage casing (5), back segment (15), steam outlet pipe (9), silencing apparatus (11), sound-absorbing material (12) and ceramic monolith (7), described suction tude is welded on the leading portion (3), the periphery of leading portion (3) has tonifying Qi hole (4), the outside of leading portion (3) mud cover of burn-oning, the inner silencing apparatus of placing.Suction tude in an embodiment (1) also is the pipe of fresh air around the injection, has only a pipe, is called single tube center injection method.Stage casing (5) be used to connect honeycomb duct and between stage casing (5) and honeycomb duct (6) jam-pack sound-absorbing material (12), in stage casing (5) when assembling,, one end was connected with leading portion (3), the other end is connected with back segment (15).
The back segment of present embodiment (15) joins with slip ring (8) and steam outlet pipe (9); the middle ceramic monolith (7) of placing; after having protective pad (13), leading portion (3), stage casing (5) to assemble between back segment and the ceramic monolith (7) with back segment (15); become Fig. 1 to spin taper; its shape of cross section may be circular; also may be oval, because of the shape of ceramic monolith (7) becomes.
During use, the waste gas that cylinder is discharged enters ceramic monolith (7) after passing through honeycomb duct (6) by suction tude (1), comes out to enter steam outlet pipe (9) via slip ring (8) from carrier (7) again and enters atmosphere.Simultaneously fresh air is come in to mix with tail gas from tonifying Qi hole (4) and is promptly begun chemical reaction, after enter ceramic monolith (7), further pass through steam outlet pipe (9) by slip ring (8) behind the chemical reaction and discharge free of contamination tail gas, finished whole purification noise elimination process.
Claims (5)
1. be with the purifying vehicle exhaust silencing apparatus of secondary air compensating; it is mainly by suction tude (1); shelves mud cover (2); leading portion (3); stage casing (5); honeycomb duct (6); back segment (15); steam outlet pipe (9), silencing apparatus (11) and sound-absorbing material component such as (12) are formed, and it is characterized in that suction tude (1) and shelves mud covers (2) all are welded on the leading portion (3); leading portion (3) periphery has tonifying Qi hole (4); stage casing (5) is welded together with honeycomb duct (6), middle jam-pack sound-absorbing material, back segment (15) and slip ring (8); steam outlet pipe (9) is welded together; ceramic monolith (7) is placed in inside, and separates leading portion (3) with protective pad (13) and back segment (15); weld together after stage casing (5) and back segment (15) assembling.
2. according to the purifying vehicle exhaust silencing apparatus of the described band secondary air compensating of claim 1, its feature also is back, described tonifying Qi hole (4) placement silencing apparatus (11), has many sound absorption grooves (16) on honeycomb duct.
3. according to the purifying vehicle exhaust silencing apparatus of the described band secondary air compensating of claim 1, its feature is that also cross-section area has two kinds: circular and oval, change with the shape of ceramic monolith (7).
4. according to the purifying vehicle exhaust silencing apparatus of the described band secondary air compensating of claim 1, its feature also is transverse dimension wherein, throat diameter and outlet diameter as suction tude (1), six diameters of honeycomb duct (6), the diameter of leading portion (3), the diameter of shelves mud covers (2), the diameter D of stage casing (5) and back segment (7), and the dimensional range of oval cross section major and minor axis a and b is all 0---within the 1000mm scope; The length dimension L of above-mentioned each parts, all 0---within the 3000mm scope.
5. according to the suction tude (1) of the purifying vehicle exhaust silencing apparatus of the described band secondary air compensating of claim 1, its feature also is it can is single tube, also can be multitube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99208653U CN2381790Y (en) | 1999-04-27 | 1999-04-27 | Automotive exhaust purifying silencer with secondary air supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99208653U CN2381790Y (en) | 1999-04-27 | 1999-04-27 | Automotive exhaust purifying silencer with secondary air supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2381790Y true CN2381790Y (en) | 2000-06-07 |
Family
ID=34002376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99208653U Expired - Lifetime CN2381790Y (en) | 1999-04-27 | 1999-04-27 | Automotive exhaust purifying silencer with secondary air supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2381790Y (en) |
-
1999
- 1999-04-27 CN CN99208653U patent/CN2381790Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |