CN203161331U - Corrugated connecting pipe device reducing motor vehicle exhaust - Google Patents
Corrugated connecting pipe device reducing motor vehicle exhaust Download PDFInfo
- Publication number
- CN203161331U CN203161331U CN201320012673XU CN201320012673U CN203161331U CN 203161331 U CN203161331 U CN 203161331U CN 201320012673X U CN201320012673X U CN 201320012673XU CN 201320012673 U CN201320012673 U CN 201320012673U CN 203161331 U CN203161331 U CN 203161331U
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- Prior art keywords
- end cap
- air inlet
- corrugated
- inlet end
- connecting tube
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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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- 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
Abstract
The utility model relates to a corrugated connecting pipe device reducing motor vehicle exhaust. Two ends of a protection body are respectively connected with an air inlet end cover and an air outlet end cover. The axial end face of the air inlet end cover and the axial end face of the air outlet end cover are both provided an annual protruding shoulder. Connecting tubes are arranged in the air inlet end cover and the air outlet end cover. A corrugated hose is arranged in the protection body. Two ends of the corrugated hose are respectively connected with the axial end face of the annular protruding shoulder of the air inlet end cover and the axial end face of the annular protruding shoulder of the air outlet end cover. An elastic part is located in the corrugated hose. Two ends of the elastic part are respectively connected with the circumferential face of a top circle of the annular protruding shoulder of the air inlet end cover and the circumferential face of a top circle of the annular protruding shoulder of the air outlet end cover. The other end of a three-way catalyst is matched in the connecting tube in the air outlet end cover in a sliding fit mode. The corrugated connecting pipe device can prevent the corrugated hose from forming a tension state and being damaged, and prevent the corrugate hose from being interfered with other parts at working time.
Description
Technical field
The utility model relates to a kind of corrugated connecting tube device that reduces motor vehicle exhaust emission.
Background technique
Usually adopt the ternary catalyst purifier of in tail gas discharging pipe, packing into petrol engine as the automobile of power, the purification of motorcycle exhaust, its basic comprising is the porous core body that tail gas can pass through smoothly, be stained with the three-way catalyst that three kinds of precious metals of platinum, palladium, rhodium are formed at core body, this porous core body is the catalyzer ternary catalyzing unit.When tail gas passes through the catalyzer ternary catalyzing unit, contact with three-way catalyst, wherein harmful gases such as carbon monoxide, hydrocarbon, nitrogen oxide form innocuous gas under the catalysis of three-way catalyst, reach the emission standard of permission.At the ternary catalyst purifier initial stage of development, core body generally all is to be that matrix is as the main source of catalytic with the ceramic honeycomb, it is withstand voltage, anti-shake and the emergency heat and cooling property resistance chilling relatively poor, thereby easily produce the integrity problem that automobile runs, can not useful energy solve the exhaust emission pollution problem of environment.But because its mechanical strength, high-temperature behavior etc. have limited the raising of working life and purifying effect, and be about 2 years its working life, and automobile effectively purifies 50,000 kilometers of strokes.
Existing engine exhaust treatment appts, be that ternary catalyst purifier is installed in the pipeline, pipeline is made up of air inlet end cap, give vent to anger end cap and corrugated flexible hose, and corrugated flexible hose is connected the air inlet end cap and gives vent to anger between the end cap, and ternary catalyst purifier is arranged in bellows.When the gas of high temperature passed through treatment device, the stressed meeting of wave-wave line flexible pipe axially produced deformation along it, and simultaneously, the air-flow of high temperature produces treatment device and vibrates treatment device generation active force radially.Because corrugated flexible hose does not have any protective measure, after the axial variation of corrugated flexible hose reached maximum, corrugated flexible hose formed and collapses tight state, under vibration active force radially, and the jointing frangibility of corrugated flexible hose and air inlet end cap or the end cap of giving vent to anger.Therefore, present this treatment device has short defective in working life.
Summary of the invention
At above-mentioned technical problem, the utility model provides a kind of corrugated connecting tube device that reduces motor vehicle exhaust emission, the utility model can be avoided corrugated flexible hose to form collapsing causing bellows to damage under the tight state, and produces interference with miscellaneous part when avoiding corrugated flexible hose work.
Reduce the corrugated connecting tube device of motor vehicle exhaust emission, comprise housing and be arranged at the interior ternary catalyzing unit of housing, described housing comprises the air inlet end cap, give vent to anger end cap and corrugated flexible hose, also comprise elastic member, described housing also comprises at air inlet end cap and the protective body between the end cap of giving vent to anger, the two ends of protective body are connected with the end cap of giving vent to anger with the air inlet end cap respectively, be equipped with the ring-type convex shoulder on the axial end of described air inlet end cap and the end cap of giving vent to anger, in air inlet end cap and the end cap of giving vent to anger, be equipped with connecting tube, described corrugated flexible hose is arranged in protective body, the two ends of corrugated flexible hose are connected with the axial end of the ring-type convex shoulder of the ring-type convex shoulder of air inlet end cap and the end cap of giving vent to anger respectively, described elastic member is arranged in corrugated flexible hose, the two ends of described elastic member are connected with the ring-type convex shoulder outer circle wall of the ring-type convex shoulder of air inlet end cap and the end cap of giving vent to anger respectively, the inner circumference wall of the connecting tube in one end of ternary catalyzing unit and the air inlet end cap is fixedlyed connected, and the other end of ternary catalyzing unit is snug fit in the connecting tube in the end cap of giving vent to anger.
Adopted such scheme; the two ends of protective body are connected with the end cap of giving vent to anger with the air inlet end cap respectively; described corrugated flexible hose is arranged in protective body; can form protective action to corrugated flexible hose by protective body; avoid corrugated flexible hose directly to be subjected to the injury of foreign object; and when corrugated flexible hose took place to stretch, deformation also took place in protective body under stressing conditions.The two ends of corrugated flexible hose are connected with the axial end of the ring-type convex shoulder of the ring-type convex shoulder of air inlet end cap and the end cap of giving vent to anger respectively, described elastic member is arranged in corrugated flexible hose, and the two ends of described elastic member are connected with the ring-type convex shoulder outer circle wall of the ring-type convex shoulder of air inlet end cap and the end cap of giving vent to anger respectively.When corrugated flexible hose is subjected to the axial force elongation; because the rigidity effect of elastic member; make that the elongation of elastic member axial direction can be less than the elongation of corrugated flexible hose; therefore; elastic member is limited in the elongation scope of elastic member the elongation of corrugated flexible hose; avoid corrugated flexible hose to form and collapse tight state, corrugated flexible hose has been formed protective action.When the radial effect masterpiece that is producing when vehicle is jolting is used on the corrugated flexible hose, the non-corrugated flexible hose that collapses under the tight state is damaged.In addition, because the effect of elastic member has reduced radially amplitude of corrugated flexible hose, reduced vibration frequency, also changed the whole resonant frequency of device, helped to prevent the corrugated flexible hose jointing because of the tired defective that fractures, no longer because of the fatigue strength fracture failure that transfinites.In addition, the make of corrugated flexible hose, elastic member and air inlet end cap and the end cap of giving vent to anger, when corrugated flexible hose and elastic member generation deformation, can avoid interfering between corrugated flexible hose and the elastic member, guarantee that corrugated flexible hose and elastic member given play to the function of self, improve reliability of the present utility model.At the air inlet end cap with give vent to anger and be equipped with connecting tube in the end cap, the inner circumference wall of the connecting tube in an end of ternary catalyzing unit and the air inlet end cap is fixedlyed connected, and the other end of ternary catalyzing unit is snug fit in the connecting tube in the end cap of giving vent to anger.The two ends of ternary catalyzing unit are supported by connecting tube respectively, increased the stability of ternary catalyzing unit, and when bellows deformation vertically, ternary catalyzing unit can be along axially the sliding of the connecting tube in the end cap of giving vent to anger, avoid ternary catalyzing unit to be subjected to the influence of external force vibration and vibrate.
Further, protective body is netted cylindrical shell.Adopt the protective body of this structure, be conducive to alleviate protective body from body weight.
Further, described ternary catalyzing unit comprises first thin slice and the superimposed multilayer cylinder that is rolled into of second thin slice, and the surface of first thin slice and second thin slice is provided with three-way catalyst, and the surface of described first thin slice is corrugated surface.After ternary catalyzing unit has adopted such structure, first thin slice and second thin slice and surface area increase, just increased the useful area that adheres to three-way catalyst, can increase the adhesive capacity of three-way catalyst, therefore, be conducive to improve ternary catalyzing unit to the treatment effect of engine exhaust.
Further, each ripple crest angle on the corrugated surface of described first thin slice is 70 °-100 °, and the height of each ripple is 1.2-2mm.The first rolls of sheets coiled of this structure is when gas flows through first thin slice surperficial, because its crest angle is 70 °-100 °, reduce vapour lock, not only be beneficial to air-flow by the multilayer cylinder, and air-flow contacts with the surface of thin slice very fully, the treatment effect of engine exhaust is greatly improved.
Further, be provided with the gas buffer fire tray of porous ceramics in the described air inlet end cap.Gas buffer fire tray in advance handling waste gas by porous ceramics, can make waste gas give fully burning once again on the one hand, the exhaust gas discharging that reduces, reduce the work load of ternary catalyzing unit, the obstruction that has reduced ternary catalyzing unit has prolonged working life, be conducive to dwindle the volume of ternary catalyzing unit on the other hand, reduced the waste of the catalyzer of metal simultaneously.
Description of drawings
Fig. 1 is the structural representation of the corrugated connecting tube device of reduction motor vehicle exhaust emission of the present utility model;
1 is the air inlet end cap, and 2 for giving vent to anger end cap, and 3 is corrugated flexible hose, and 4 is protective body, and 5 is the gas buffer fire tray, and 6 is the ring-type convex shoulder, and 7 is connecting tube, and 8 is sleeve pipe, and 9 is bellows segment.
Embodiment
With reference to Fig. 1, the corrugated connecting tube device of reduction motor vehicle exhaust emission of the present utility model comprises housing and is arranged at housing interior ternary catalyzing unit and elastic member.Housing comprises air inlet end cap 1, give vent to anger end cap 2 and corrugated flexible hose 3, and described housing also comprises at air inlet end cap and the protective body 4 between the end cap of giving vent to anger.Be provided with the gas buffer fire tray 5 of porous ceramics in the air inlet end cap, gas buffer fire tray 5 makes waste gas give fully burning once again, the exhaust gas discharging of minimizing, the work load of minimizing ternary catalyzing unit.Be equipped with ring-type convex shoulder 6 on the axial end of air inlet end cap 1 and the end cap 2 of giving vent to anger, ring-type convex shoulder 6 is mainly used in assembling corrugated flexible hose and elastic member, makes corrugated flexible hose and elastic member not interfere effect mutually when work.Be equipped with connecting tube 7 in air inlet end cap 1 and the end cap 2 of giving vent to anger, this connecting tube 7 is used for the described ternary catalyzing unit of assembling.The two ends of protective body 4 are connected with the end cap of giving vent to anger with the air inlet end cap respectively, and protective body 4 is netted cylindrical shell, and this netted cylindrical shell can adopt wire gaze, also can adopt resistant to elevated temperatures plastic production to form.Described corrugated flexible hose 3 is arranged in protective body 4, and the two ends of corrugated flexible hose 3 are connected with the axial end of the ring-type convex shoulder 6 of the ring-type convex shoulder 6 of air inlet end cap 1 and the end cap 2 of giving vent to anger respectively.Described elastic member is arranged in corrugated flexible hose 3, and the two ends of described elastic member are connected with the ring-type convex shoulder outer circle wall of the ring-type convex shoulder 6 of air inlet end cap 1 and the end cap of giving vent to anger respectively.Described elastic member comprises sleeve pipe 8, and the compartment of terrain arranges the telescopic bellows segment 9 of multistage on the circumference wall of sleeve pipe, and these bellows segment are that the sleeve pipe inner tubal wall is stamped to form type to outer tube wall.The inner circumference wall of the connecting tube in one end of ternary catalyzing unit and the air inlet end cap is fixedlyed connected, and the other end of ternary catalyzing unit is snug fit in the connecting tube in the end cap of giving vent to anger.Described ternary catalyzing unit comprises first thin slice and the superimposed multilayer cylinder that is rolled into of second thin slice (the concrete composition structural drawing of not shown ternary catalyzing unit), the surface of first thin slice and second thin slice is provided with three-way catalyst, and the surface of described first thin slice is corrugated surface.Each ripple crest angle on the corrugated surface of described first thin slice is 70 °-100 °, and the height of each ripple is 1.2-2mm.Preferably, each ripple crest angle on the corrugated surface of first thin slice is 80 °, and the height of each ripple is 1.5mm.
The utility model is not limited to above-described embodiment, and described elastic member can also be adopted as columniform helical spring.
Claims (7)
1. corrugated connecting tube device that reduces motor vehicle exhaust emission, comprise housing and be arranged at the interior ternary catalyzing unit of housing, described housing comprises the air inlet end cap, give vent to anger end cap and corrugated flexible hose, it is characterized in that: also comprise elastic member, described housing also comprises at air inlet end cap and the protective body between the end cap of giving vent to anger, the two ends of protective body are connected with the end cap of giving vent to anger with the air inlet end cap respectively, be equipped with the ring-type convex shoulder on the axial end of described air inlet end cap and the end cap of giving vent to anger, in air inlet end cap and the end cap of giving vent to anger, be equipped with connecting tube, described corrugated flexible hose is arranged in protective body, the two ends of corrugated flexible hose are connected with the axial end of the ring-type convex shoulder of the ring-type convex shoulder of air inlet end cap and the end cap of giving vent to anger respectively, described elastic member is arranged in corrugated flexible hose, the two ends of described elastic member are connected with the ring-type convex shoulder outer circle wall of the ring-type convex shoulder of air inlet end cap and the end cap of giving vent to anger respectively, the inner circumference wall of the connecting tube in one end of ternary catalyzing unit and the air inlet end cap is fixedlyed connected, and the other end of ternary catalyzing unit is snug fit in the connecting tube in the end cap of giving vent to anger.
2. the corrugated connecting tube device of reduction motor vehicle exhaust emission according to claim 1, it is characterized in that: described elastic member comprises sleeve pipe, the compartment of terrain arranges the telescopic bellows segment of multistage on the circumference wall of sleeve pipe, and these bellows segment are that the sleeve pipe inner tubal wall is stamped to form type to outer tube wall.
3. the corrugated connecting tube device of reduction motor vehicle exhaust emission according to claim 1, it is characterized in that: described elastic member is columniform helical spring.
4. the corrugated connecting tube device of reduction motor vehicle exhaust emission according to claim 1, it is characterized in that: protective body is netted cylindrical shell.
5. the corrugated connecting tube device of reduction motor vehicle exhaust emission according to claim 1, it is characterized in that: described ternary catalyzing unit comprises first thin slice and the superimposed multilayer cylinder that is rolled into of second thin slice, the surface of first thin slice and second thin slice is provided with three-way catalyst, and the surface of described first thin slice is corrugated surface.
6. the corrugated connecting tube device of reduction motor vehicle exhaust emission according to claim 5, it is characterized in that: each ripple crest angle on the corrugated surface of described first thin slice is 70 °-100 °, and the height of each ripple is 1.2-2mm.
7. according to the corrugated connecting tube device of any described reduction motor vehicle exhaust emission of claim 1-6, it is characterized in that: the gas buffer fire tray that is provided with porous ceramics in the described air inlet end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320012673XU CN203161331U (en) | 2013-01-10 | 2013-01-10 | Corrugated connecting pipe device reducing motor vehicle exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320012673XU CN203161331U (en) | 2013-01-10 | 2013-01-10 | Corrugated connecting pipe device reducing motor vehicle exhaust |
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| Publication Number | Publication Date |
|---|---|
| CN203161331U true CN203161331U (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320012673XU Expired - Fee Related CN203161331U (en) | 2013-01-10 | 2013-01-10 | Corrugated connecting pipe device reducing motor vehicle exhaust |
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| CN (1) | CN203161331U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075236A (en) * | 2013-01-10 | 2013-05-01 | 无锡市锡山环宇金属软管有限公司 | Corrugated connecting pipe device for lowering exhaust emission of automobile |
| CN106807342A (en) * | 2017-03-15 | 2017-06-09 | 广州同胜环保科技有限公司 | Regenerating active carbon system and method |
| CN110159407A (en) * | 2019-05-24 | 2019-08-23 | 朱红 | A kind of processing unit when the abnormal emission for vehicle exhaust |
-
2013
- 2013-01-10 CN CN201320012673XU patent/CN203161331U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075236A (en) * | 2013-01-10 | 2013-05-01 | 无锡市锡山环宇金属软管有限公司 | Corrugated connecting pipe device for lowering exhaust emission of automobile |
| CN103075236B (en) * | 2013-01-10 | 2016-12-28 | 无锡市锡山环宇金属软管有限公司 | Reduce the corrugated connecting tube device of motor vehicle exhaust emission |
| CN106807342A (en) * | 2017-03-15 | 2017-06-09 | 广州同胜环保科技有限公司 | Regenerating active carbon system and method |
| CN110159407A (en) * | 2019-05-24 | 2019-08-23 | 朱红 | A kind of processing unit when the abnormal emission for vehicle exhaust |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20140110 |