CN202360193U - Port thermal insulator for automobile catalytic converter - Google Patents
Port thermal insulator for automobile catalytic converter Download PDFInfo
- Publication number
- CN202360193U CN202360193U CN2011205096708U CN201120509670U CN202360193U CN 202360193 U CN202360193 U CN 202360193U CN 2011205096708 U CN2011205096708 U CN 2011205096708U CN 201120509670 U CN201120509670 U CN 201120509670U CN 202360193 U CN202360193 U CN 202360193U
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- China
- Prior art keywords
- metal
- metal shell
- utility
- port
- catalytic converter
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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
Abstract
The utility model discloses a port thermal insulator for an automobile catalytic converter, which comprises a metal shell, a ceramic carrier and an inorganic seal liner, wherein one end of the metal shell is arranged as an air inlet end, and the other end is arranged as an air outlet end; the air inlet end and the air outlet end are provided with a metal inner cone tube and a metal outer cone tube; and the ceramic carrier wrapped by the inorganic seal liner is installed inside the metal shell. The utility model is characterized in that a port thermal insulation liner is arranged between the metal inner cone tube and the metal outer cone tube. The utility model implements complete-coverage thermal insulation protection on the metal shell, and effectively prevents the automobile exhaust gas from transferring heat to other components of the automobile chassis through the cone tube position without the inorganic seal liner protection, thereby effectively preventing heat dissipation of the exhaust gas and shortening the time required by achieving the combustion initiation temperature during ceramic carrier conversion.
Description
Technical field
The utility model relates to the automobile component field, specially refers to a kind of port heat-proof device of vehicle catalytic converter.
Background technique
At present; The power resources of overwhelming majority automobile come from the motor of fuel oil; Fuel engine can produce part tail gas under the inadequate situation of burning; The composition of tail gas is a kind of carbon monoxide (CO), hydrocarbon (HC) and oxynitrides harmful matters such as (NOX) of containing, and these materials can the severe contamination air.For reducing the harm that this kind material causes air; What generally adopt at present is a kind of device that is referred to as catalytic converter; This device can be converted into harmless water vapour, carbon dioxide and nitrogen through and supported catalyst generation chemical reaction inner at catalyzer to these three kinds of harmful gas compositions; And then with its eliminating automobile, thereby play the purpose of eliminating a large amount of pollutants.
The automobile three-way catalytic converter is a crucial constituent element in the vehicle exhaust processing system, and the tail gas of automobile is played a part to purify, filter.Three-way catalytic converter comprises metal shell, ceramic monolith, inorganic liner three parts; Wherein ceramic monolith is born the major function of purifying vehicle exhaust; Metal shell plays a part fixedly ceramic monolith, and inorganic liner then is between metal shell and the ceramic monolith, utilizes pliability and the high temperature expansibility of himself; The collision of avoiding on the one hand receiving metal shell owing to ceramic monolith produces broken possibility; Increase the sealability between ceramic monolith and metal shell on the other hand, the tail gas that forces engine producing improves tail gas by the probability of catalyzed conversion all through ceramic monolith.
Generally, the inorganic liner in the three-way catalytic converter only partly wraps up ceramic monolith entirely.After so handling; The tail gas of motor car engine can't be discharged from the gap of metal shell and ceramic monolith; Only can discharge, increase area and probability that tail gas contacts with the ceramic monolith surface catalyst, improve the efficient of conversion through the honeycomb duct of ceramic monolith.On the other hand, the heat-shielding performance that inorganic liner has makes the heat of the tail gas that motor is discharged be limited in the ceramic monolith, avoids the heat transferred metal shell with high temperature, has improved the useful life longevity of metal shell.But the mode of this kind processing has been ignored the metal Taper Pipe of heat insulation processing, the especially inlet end of three-way catalytic converter two ends metal Taper Pipes.Vehicle exhaust at first process be the metal Taper Pipe of inlet end, through the guiding of metal Taper Pipe, gas is the honeycomb duct that divergent shape flows into ceramic monolith; In this process; Heat that the metal Taper Pipe of inlet end bears is maximum, if this end does not have the protection of thermal-protective material, it is maximum that then it receives the harm that thermal shock and hot air flow wash away; Other metal partss with respect to three-way catalytic converter are the shortest its working life, thereby further influence the working life of whole three-way catalytic converter.
In sum, to the defective of existing technology, need a kind of port heat-proof device of vehicle catalytic converter especially, with the problem of mentioning more than solving.
The model utility content
The purpose of the utility model is to provide a kind of port heat-proof device of vehicle catalytic converter, through the employing special structural design, thus the purpose of realization the utility model.
The technical problem that the utility model solved can adopt following technological scheme to realize:
A kind of port heat-proof device of vehicle catalytic converter; Comprise metal shell, ceramic monolith and inorganic liner; One end of said metal shell is set to inlet end; The other end is set to the outlet side, said inlet end and outlet side be provided with the outer Taper Pipe of metal endosiphuncular tube and metal, the inside of metal shell is equipped with the ceramic monolith by inorganic liner parcel; It is characterized in that, be provided with the port insulation blanket between the outer Taper Pipe of said metal endosiphuncular tube and metal.
In an embodiment of the utility model, said port insulation blanket adopts the integrative-structure design, or adopts the unexpansive inorganic liner of sheet to form through secondary operations.
The beneficial effect of the utility model is: realized the full coverage thermal insulation protection to metal shell; Effectively stoped the miscellaneous part of the Taper Pipe position of vehicle exhaust through there not being inorganic liner protection with the heat transferred automobile chassis; And then effectively stop scattering and disappearing of tail gas heat quantity, the required time that reaches initiation temperature when shortening the ceramic monolith conversion.
Description of drawings
Fig. 1 is the structural representation of the port heat-proof device of the said a kind of vehicle catalytic converter of the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with embodiment, further set forth the utility model.
As shown in Figure 1; The port heat-proof device of the described a kind of vehicle catalytic converter of the utility model; Comprise metal shell 5, ceramic monolith 6 and inorganic liner 4, an end of said metal shell 5 is set to inlet end 7, and the other end is set to outlet side 8; Said inlet end 7 and outlet side 8 be provided with metal endosiphuncular tube 3 and the outer Taper Pipe 2 of metal, the inside of metal shell 5 is equipped with the ceramic monolith 6 by inorganic liner 4 parcels; Also be provided with port insulation blanket 1 between the outer Taper Pipe 2 of said metal endosiphuncular tube 3 and metal.
Said port insulation blanket 1 adopts the integrative-structure design, or adopts the unexpansive inorganic liner of sheet to form through secondary operations.
The utility model adopts unexpansive inorganic liner as the heat insulation material of port; Requiring unexpansive inorganic liner main component is alumina fibre; Wherein the alumina content scope is 72%-96% in the alumina fibre, and the content range of silica is 4%-28%; The length of alumina fibre is at 20-50mm; Slag ball content＜0.1%, temperature resistant grade scope are 1200 ℃-1600 ℃.Gap between the inside and outside Taper Pipe of the selection ground of port heat-insulating and sealing liner is confirmed, requires its filling density to satisfy at 0.3-0.5g/cm3, the temperature of metal shell≤500 ℃.
The utility model uses unexpansive inorganic liner as material the port of vehicle catalytic converter to be carried out heat insulation processing.Unexpansive inorganic liner as the heat insulation processing of port can adopt once-through, also can adopt unexpansive inorganic liner with sheet through secondary operations, is processed into and satisfies the heat insulation taper requirement of port.The heat insulation liner of port is assemblied between endosiphuncular tube and the outer Taper Pipe, with the position of fixed port heat-insulating and sealing liner, guarantees that under the airflow scouring of tail gas, the port insulation blanket is not subjected to displacement mobile.The use of port heat-insulating and sealing liner can also guarantee that the heat of tail gas greatly partly passes to the catalyzed conversion agent of ceramic monolith surface-coated when guaranteeing that the metal Taper Pipe is not corroded by high-temperature tail gas.Because having an effect, the catalyzed conversion agent needs certain initiation temperature; The not lost temperature that makes the catalyzed conversion agent obtain of tail gas heat quantity is higher; It is shorter that the catalyzed conversion agent is elevated to the needed time of initiation temperature from room temperature; The process that transforms has more early been avoided catalytic converter tail gas unconverted and possibility of directly being discharged before not reaching initiation temperature, thereby has been improved the efficient that transforms in itself.
More than show and described basic principle of the utility model and the advantage of major character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (2)
1. the port heat-proof device of a vehicle catalytic converter; Comprise metal shell, ceramic monolith and inorganic liner; One end of said metal shell is set to inlet end; The other end is set to the outlet side, said inlet end and outlet side be provided with the outer Taper Pipe of metal endosiphuncular tube and metal, the inside of metal shell is equipped with the ceramic monolith by inorganic liner parcel; It is characterized in that, be provided with the port insulation blanket between the outer Taper Pipe of said metal endosiphuncular tube and metal.
2. the port heat-proof device of a kind of vehicle catalytic converter according to claim 1 is characterized in that, said port insulation blanket adopts the integrative-structure design, or adopts the unexpansive inorganic liner of sheet to form through secondary operations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205096708U CN202360193U (en) | 2011-12-08 | 2011-12-08 | Port thermal insulator for automobile catalytic converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205096708U CN202360193U (en) | 2011-12-08 | 2011-12-08 | Port thermal insulator for automobile catalytic converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360193U true CN202360193U (en) | 2012-08-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205096708U Expired - Fee Related CN202360193U (en) | 2011-12-08 | 2011-12-08 | Port thermal insulator for automobile catalytic converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360193U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089384A (en) * | 2013-02-21 | 2013-05-08 | 安徽江淮汽车股份有限公司 | Catalyst assembly packaging structure |
-
2011
- 2011-12-08 CN CN2011205096708U patent/CN202360193U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089384A (en) * | 2013-02-21 | 2013-05-08 | 安徽江淮汽车股份有限公司 | Catalyst assembly packaging structure |
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Legal Events
| 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: SHANGHAI YESO INSULATING PRODUCTS CORPORATION Free format text: FORMER NAME: SHANGHAI YESO HEAT ENERGY TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Huaxin Town Qingpu District Shanghai City Huayi road 201708 No. 43 Patentee after: Shanghai Aesop thermal energy technology Limited by Share Ltd Address before: Huaxin Town Qingpu District Shanghai City Huayi road 201708 No. 43 Patentee before: Shanghai Yeso Heat Energy Technology Co., Ltd. |
|
| 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: 20120801 Termination date: 20171208 |