CN100447381C - Two-layer, ternary catalysis device for automobile engine - Google Patents
Two-layer, ternary catalysis device for automobile engine Download PDFInfo
- Publication number
- CN100447381C CN100447381C CNB2006100543728A CN200610054372A CN100447381C CN 100447381 C CN100447381 C CN 100447381C CN B2006100543728 A CNB2006100543728 A CN B2006100543728A CN 200610054372 A CN200610054372 A CN 200610054372A CN 100447381 C CN100447381 C CN 100447381C
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- China
- Prior art keywords
- layer
- catalyzing unit
- housing
- ternary catalyzing
- ternary
- 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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- 238000006555 catalytic reaction Methods 0.000 title claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract 5
- 239000011810 insulating material Substances 0.000 abstract 1
- 239000002356 single layer Substances 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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 Silencers (AREA)
Abstract
The present invention relates to a double-layer ternary catalyzer for automobile engines, which comprises a shell, a trinary catalyzer core and a gasket, wherein the middle part of the shell has a single-layer thin-wall structure. Both ends of the shell, namely the front part and the rear part of the trinary catalyzer core, are provided with the horn parts of a sandwich structure; each horn part is composed of an outer layer, a heat insulating layer and an inner layer, wherein the heat insulating layer adopts heat insulating material in order to keep exhaust temperature. The present invention can reduce the heat load of the shell under the precondition that an effective exhaust temperature is ensured, and the present invention is suitable for strict requirements of emission regulations.
Description
Technical field
The present invention relates to the ternary catalyzing unit structure of motor car engine.
Background technique
Automobile three-way catalysts existing standard structure comprises ternary catalyzing unit core 11, liner 12, ternary catalyzing unit housing 13, thermal shield 14, its structure is seen Fig. 1, the centre of ternary catalyzing unit housing 13 and the horn mouth on both sides are individual layer, housing 13 is implemented encapsulation by liner 12 with ternary catalyzing unit core 11, for the radiation heat that stops ternary catalyzing unit causes thermal radiation to peripheral component, apply thermal shield 14.In this structure, in order to make ternary catalyzing unit housing 13 heatproofs, ternary catalyzing unit housing 13 need be chosen thicker thickness, and between ternary catalyzing unit housing 13 and thermal shield 14, to keep the gap, allow moving air take away the ternary catalyzing unit heat, but this can make the entrance and exit temperature of ternary catalyzing unit descend simultaneously, is unfavorable for stricter emission regulation demands.
Summary of the invention
At the deficiency that prior art exists, the present invention proposes a kind of two-layer, ternary catalysis device for automobile engine, under the prerequisite that guarantees effective delivery temperature, reduces the heat load of housing, to adapt to stricter Abgasgesetz.
Technological scheme of the present invention is as follows:
Two-layer, ternary catalysis device for automobile engine includes housing, ternary catalyzing unit core and liner, the housing middle part is the single thin layer wall construction, at the two ends of housing is the place ahead and rear loudspeaker part with dissection of ternary catalyzing unit core, the loudspeaker part is made of skin, insulation layer and internal layer, and insulation layer adopts resolves hot material to keep delivery temperature.
In addition, the thickness at housing middle part reduces to thickness 1.5mm by common 2mm, reduces the heat load of housing significantly, makes it reach low heat capacity, and is high temperature resistant, improves oxidative stability.
Simultaneously, in order to guarantee the retentivity of liner, strengthen liner thickness and be increased to 6mm by common 4mm.
This ternary catalyzing unit compared with prior art has following beneficial effect;
1, loudspeaker partly adopt disconnected hot sandwich structure, can effectively keep delivery temperature;
2, thin walled structures is adopted at the housing middle part, and heat load is little, has low heat capacity, and is high temperature resistant, the advantage of good in oxidation resistance;
3, strengthen liner thickness, can improve the retentivity of liner.
4, this structure does not have thermal shield of the prior art, has saved cost, and the diameter that can strengthen the ternary catalyzing unit core is to adapt to higher Abgasgesetz.
Description of drawings
Fig. 1 is the structural drawing of existing single hull ternary catalyzing unit;
Fig. 2 is a ternary catalyzing unit structural drawing of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
Referring to Fig. 2, this two-layer, ternary catalysis device is made up of liner 22, housing 21 and ternary catalyzing unit core 23.Housing 21 is implemented encapsulation by liner 22 with ternary catalyzing unit core 23, strengthens liner 22 thickness and is increased to 6mm by common 4mm.The housing middle part 211 in the middle of housing 21 is divided into and the loudspeaker part 212 at two ends, for guaranteeing heat radiation, housing middle part 211 is the single thin layer wall construction, thickness 1.5mm, simultaneously in order to keep delivery temperature, the sandwich structure that loudspeaker part 212 has adopted outer A, insulation layer B, internal layer to constitute, it is that outer A and internal layer C are being inserted insulation layer B after the 211 port part welding of housing middle part, opens the combustion temperature with what guarantee that delivery temperature reaches ternary catalyzing unit core 6 as early as possible.
Claims (3)
1, two-layer, ternary catalysis device for automobile engine, include housing, ternary catalyzing unit core and liner, it is characterized in that: the housing middle part is the single thin layer wall construction, at the two ends of housing is the place ahead of ternary catalyzing unit core and the loudspeaker part that the rear is sandwich structure, and the loudspeaker part is made of skin, internal layer and middle insulation layer.
2, ternary catalyzing unit according to claim 1 is characterized in that: the thickness at housing middle part is 1.5mm.
3, ternary catalyzing unit according to claim 1 is characterized in that: liner thickness is 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100543728A CN100447381C (en) | 2006-06-18 | 2006-06-18 | Two-layer, ternary catalysis device for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100543728A CN100447381C (en) | 2006-06-18 | 2006-06-18 | Two-layer, ternary catalysis device for automobile engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1873194A CN1873194A (en) | 2006-12-06 |
| CN100447381C true CN100447381C (en) | 2008-12-31 |
Family
ID=37483771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100543728A Expired - Fee Related CN100447381C (en) | 2006-06-18 | 2006-06-18 | Two-layer, ternary catalysis device for automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100447381C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5079630B2 (en) * | 2008-08-08 | 2012-11-21 | 株式会社小松製作所 | Exhaust gas purification device |
| CN104343505A (en) * | 2014-06-18 | 2015-02-11 | 南京海特汽车部件有限公司 | Three-way catalyst converter |
| DE102016003741A1 (en) * | 2016-03-31 | 2017-10-05 | Man Diesel & Turbo Se | Exhaust after-treatment system, internal combustion engine and method for operating the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2415162Y (en) * | 2000-04-21 | 2001-01-17 | 周忠庆 | Double cone exhaust gas purifier for car |
| CN2492685Y (en) * | 2001-08-17 | 2002-05-22 | 王诗昌 | Ternary catalytic automobile tail gas converter |
| CN1350614A (en) * | 1999-05-12 | 2002-05-22 | 大众汽车有限公司 | Exhaustges purifying method and exhaust gas purifying device with an NOx storage catalyst and a precatayst |
| CN2856438Y (en) * | 2005-11-27 | 2007-01-10 | 重庆长安汽车股份有限公司 | Three-element catalyzer of automobile engine |
-
2006
- 2006-06-18 CN CNB2006100543728A patent/CN100447381C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1350614A (en) * | 1999-05-12 | 2002-05-22 | 大众汽车有限公司 | Exhaustges purifying method and exhaust gas purifying device with an NOx storage catalyst and a precatayst |
| CN2415162Y (en) * | 2000-04-21 | 2001-01-17 | 周忠庆 | Double cone exhaust gas purifier for car |
| CN2492685Y (en) * | 2001-08-17 | 2002-05-22 | 王诗昌 | Ternary catalytic automobile tail gas converter |
| CN2856438Y (en) * | 2005-11-27 | 2007-01-10 | 重庆长安汽车股份有限公司 | Three-element catalyzer of automobile engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1873194A (en) | 2006-12-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081231 Termination date: 20190618 |
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| CF01 | Termination of patent right due to non-payment of annual fee |