CN201671689U - Tail gas catalytic converter used for pick-up truck - Google Patents
Tail gas catalytic converter used for pick-up truck Download PDFInfo
- Publication number
- CN201671689U CN201671689U CN201020148470XU CN201020148470U CN201671689U CN 201671689 U CN201671689 U CN 201671689U CN 201020148470X U CN201020148470X U CN 201020148470XU CN 201020148470 U CN201020148470 U CN 201020148470U CN 201671689 U CN201671689 U CN 201671689U
- Authority
- CN
- China
- Prior art keywords
- catalytic converter
- carriers
- ring groove
- limited ring
- tail gas
- 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 - Lifetime
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Classifications
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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 a tail gas catalytic converter used for a pick-up truck, which comprises a barrel and two ceramic carriers arranged in the barrel. After the tail gas catalytic converter is improved, the middle part of the barrel is provided with a limit ring slot, and the two ceramic carriers are respectively arranged at both sides of the limit ring slot. The utility model has the advantages after being improved: 1. axial limit is respectively realized on the two carriers by the limit ring slot to avoid that the carriers are damaged because the two carriers intensively crash; 2. the limit ring slot makes a certain gap formed between the two carriers, which is beneficial to reducing backpressure, making gas circulation smooth and ensuring the purification effect of the tail gas catalytic converter. In the utility model, the limit ring slot adopts metal spinning. The process is simple and is easy to realized and can not influence the strength of the barrel.
Description
Technical field
The utility model relates to a kind of Vehicular device, especially for the exhaust catalytic converter of picking-up vehicle, belongs to automobile harness technical field.
Background technique
Exhaust catalytic converter is the automobile exhaust system critical piece, and the high temperature gas flow that produces during engine operation is discharged by outlet pipe behind the catharsis of exhaust catalytic converter.Exhaust catalytic converter is made up of cylindrical shell and the ceramic monolith that is installed in the cylindrical shell, and ceramic monolith is the core component of exhaust catalytic converter, and it costs an arm and a leg, and works under 600-800 ℃ temperature.Scribble noble metal platinum on the ceramic monolith, what produce in the engine working process has the gas such as the nitrogen oxide of pollution to air, carbon monoxide etc. are converted into CO2 with the precious metal after chemical reaction of carrier with above-mentioned harmful gas when the exhaust catalytic converter, and innocuous gas such as H2O are discharged.The utility model structure as shown in Figure 2, its cylindrical shell 2 longer dimensions adopt two ceramic monoliths 4 to stack and are installed in the cylindrical shell, rely on liner 3 and cylindrical shell to compress spacing.Its existing problems are: long term high temperature work, liner deform to shrink and cause the spacing inefficacy of carrier, download cognition in the effect of air-flow in the car running process and take place to collect together up and down, cause back pressure to strengthen, and influence the normal performance of engine performance.Particularly run into when jolting road conditions, collision aggravation between two carriers can produce in various degree damage to ceramic monolith, even cause exhaust catalytic converter to be scrapped because of carrier damages.
The model utility content
The utility model is used to solve the defective of above-mentioned prior art and provides a kind of to the spacing exhaust catalytic converter that is used for picking-up vehicle of upper and lower two ceramic monoliths enforcement.
The alleged problem of the utility model solves by the following technical programs:
A kind of exhaust catalytic converter that is used for picking-up vehicle, it comprises cylindrical shell and is positioned at two ceramic monoliths of cylindrical shell, and its specialization is, is provided with limited ring groove in the middle part of the described cylindrical shell, and described two ceramic monoliths lay respectively at the limited ring groove both sides.
The above-mentioned exhaust catalytic converter that is used for picking-up vehicle, the sectional shape of described limited ring groove are circular arc, and its radius of arc R is 7 millimeters, limited ring groove both sides and barrel wall smooth transition, and limited ring groove groove width L is the 13-15 millimeter, groove depth H is the 5-7 millimeter.
The utility model in the exhaust catalytic converter of picking-up vehicle between ceramic monolith axial spacing problem improve, on the cylindrical shell of described exhaust catalytic converter, be provided with one limited ring groove, by described limited ring groove two ceramic monoliths are separated, it is as follows to improve its beneficial effect through this: 1, limited ring groove is realized axial limiting together with the upper and lower tapering of cylindrical shell respectively to two carriers, avoids because of damaging because of strong collision causes carrier between two carriers; 2, limited ring groove makes and forms a fixed gap between two carriers, helps reducing back pressure, makes gas communication smooth and easy, guarantees the purifying effect of exhaust catalytic converter.Limited ring groove described in the utility model adopts spinning, and manufacturing process is simple, be easy to realize, can not exert an influence to cylinder strength.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is an exhaust catalytic converter structural representation before improving;
Fig. 3 is the partial enlarged view of Figure 1A portion.
Label is as follows in the accompanying drawing: 1. exhaust catalytic converter, 2. cylindrical shell, 3. liner, 4. ceramic monolith, 5 limited ring grooves.
Embodiment
Referring to Fig. 1, the formation of exhaust catalytic converter described in the utility model comprises cylindrical shell 2 and is positioned at two ceramic monoliths of cylindrical shell, the ceramic monolith outside coats liner 3, be provided with a limited ring groove 5 around barrel wall at cylindrical shell 2 middle parts, two ceramic monoliths lay respectively at the limited ring groove both sides, by the last tapering contraposition of limited ring groove and cylindrical shell in the ceramic monolith axial limiting on top; By the hypocone of limited ring groove and cylindrical shell to being positioned at the ceramic monolith axial limiting of bottom.Said structure does not rely on liner spacing, even therefore liner deforms, can not influence the axial displacement of ceramic monolith yet.
Referring to Fig. 3, for not influencing the structural strength of cylindrical shell, the sectional shape of limited ring groove 5 adopts circular arc, its radius of arc R is 7 millimeters, and limited ring groove both sides and barrel wall smooth transition are concentrated to avoid stress, limited ring groove groove width L is the 13-15 millimeter, and groove depth H is the 5-7 millimeter.
Limited ring groove on the utility model cylindrical shell can adopt spin-on process processing.
Claims (2)
1. exhaust catalytic converter that is used for picking-up vehicle, it comprises cylindrical shell and be positioned at two ceramic monoliths of cylindrical shell, it is characterized in that: be provided with limited ring groove (5) in the middle part of the described cylindrical shell (2), described two ceramic monoliths lay respectively at the limited ring groove both sides.
2. the exhaust catalytic converter that is used for picking-up vehicle according to claim 1, it is characterized in that: the sectional shape of described limited ring groove (5) is a circular arc, its radius of arc R is 7 millimeters, limited ring groove both sides and barrel wall smooth transition, limited ring groove groove width L is the 13-15 millimeter, and groove depth H is the 5-7 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020148470XU CN201671689U (en) | 2010-04-02 | 2010-04-02 | Tail gas catalytic converter used for pick-up truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020148470XU CN201671689U (en) | 2010-04-02 | 2010-04-02 | Tail gas catalytic converter used for pick-up truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201671689U true CN201671689U (en) | 2010-12-15 |
Family
ID=43329101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020148470XU Expired - Lifetime CN201671689U (en) | 2010-04-02 | 2010-04-02 | Tail gas catalytic converter used for pick-up truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201671689U (en) |
-
2010
- 2010-04-02 CN CN201020148470XU patent/CN201671689U/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 | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101215 |