CN107355286A - The encapsulating structure of engine aftertreatment system - Google Patents
The encapsulating structure of engine aftertreatment system Download PDFInfo
- Publication number
- CN107355286A CN107355286A CN201710760067.9A CN201710760067A CN107355286A CN 107355286 A CN107355286 A CN 107355286A CN 201710760067 A CN201710760067 A CN 201710760067A CN 107355286 A CN107355286 A CN 107355286A
- Authority
- CN
- China
- Prior art keywords
- carrier
- shell
- encapsulating structure
- aftertreatment system
- engine aftertreatment
- 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.)
- Pending
Links
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 2
- 238000005538 encapsulation Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
A kind of engine aftertreatment system encapsulating structure design, includes the design of carrier shell.Described carrier shell is the tube structure that both sides are carried out with enlarging technique.Described after-treatment system encapsulating structure is the tube structure into outlet housing and carrier shell integral type.The invention provides a kind of design of encapsulating structure, the tolerance of catalyst carrier can be effectively absorbed, and the guide groove section that push-in type catalyst encapsulates is integrated on carrier shell, the maximized influence for eliminating the excessive tolerance of catalyst and bringing after-treatment system encapsulation process.
Description
Technical field
The invention belongs to engine aftertreatment system technical field, a kind of encapsulation knot of engine aftertreatment system is refered in particular to
Structure.
Background technology
In the field of engine aftertreatment system, the encapsulation of after-treatment system is an essential link.Tradition
After-treatment system encapsulation include the assembling of air intake assembly, the encapsulation of carrier, go out the encapsulation of pneumatic module and the envelope of system synthesis
Dress.Yet with the limitation of the existing level of production, the tolerance of Carrier diameters has reached ± 3mm, and in order to ensure pad filling
The uniformity of density (GBD), the diameter of carrier shell can also follow the change of Carrier diameters tolerance and change.This not only cause into
Go out when pneumatic module assembles with carrier module and certain risk, the uncertainty of after-treatment system outline packages diameter occurs
The design of follow-up heat shield and bracket component is more had influence on.Carried so needing a kind of brand-new encapsulation to design to absorb
The tolerance of body so that the profile diameter of whole after-treatment system encapsulation is consistent.
The content of the invention
It is an object of the invention to provide a kind of encapsulating structure of engine aftertreatment system so that straight in overall package profile
In the case that footpath keeps constant, larger carrier tolerance is absorbed..
The object of the present invention is achieved like this：A kind of encapsulating structure of engine aftertreatment system, including shell body, its
It is characterised by：Shell body is the integral type tubular shell that both ends are respectively arranged with air inlet pipe and escape pipe, is fixed inside shell body
There is the carrier shell of installation catalyst carrier.
Preferably, the carrier shell both ends set the enlarging with setting value, and enlarging outer wall is contradicted in outer inner walls
On.
Preferably, the changeover portion of taper is provided between the enlarging and carrier shell.
Preferably, pad is provided between the catalyst carrier and carrier shell inwall.
Preferably, the shell body both ends are packaged with end cap.
This programme devises a carrier shell for carrying enlarging, and a diameter of setting value of enlarging, then by this carrier shell
Body is enclosed in shell body, so that the tolerance of carrier is absorbed by inner housing so that entirely the profile diameter of after-treatment system is
Fixed value.And shell body and pass in and out the housing of pneumatic module and share, form the core structure of integral type, reduce between each component
Welding procedure.And in the enlarging design of carrier shell, the design of low-angle changeover portion is added, guide groove effect is served,
Booster action is played to carrier and pad push-in carrier shell.
The present invention is prominent and beneficial compared with prior art to be had the technical effect that：
1st, the diameter tolerance of carrier can be effectively absorbed so that overall package profile diameter is consistent.
2nd, outlet housing will be entered and outer carrier is public, reduce the welding procedure between each component.
3rd, guide groove design is added in the enlarging design of carrier shell, pad and carrier push-in carrier shell is played auxiliary
Help effect.
4th, the shell body of integral type, which designs, to enter the distance between escape pipe and relative angle to be easier to control.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Reference：1st, air inlet pipe；2nd, shell body；3rd, carrier shell；3a, enlarging；3b, changeover portion；4th, pad；5th, it is catalyzed
Agent carrier；6th, escape pipe；7th, end cap.
Embodiment
With specific embodiment, the invention will be further described below in conjunction with the accompanying drawings, referring to Fig. 1：
A kind of After-treatment technics encapsulating structure, including air inlet pipe 1, shell body 2, carrier shell 3, pad 4, catalyst carry
Body 5, escape pipe 6, end cap 7 are formed.Shell body 2 is that both ends are respectively arranged with air inlet pipe 1 and the integral type cylindrical case of escape pipe 6
Body, the inside immobilization carrier housing 3 of shell body 2, the both ends of carrier shell 3 set the enlarging 3a with setting value, and enlarging 3a outer walls support
Touch on the inwall of shell body 2.The changeover portion 3b of taper is provided between enlarging 3a and carrier shell 3.
Embodiment is as follows：
Measure the actual value of Carrier diameters first, it is assumed that actual value is 269.7mm (now tolerance is+3mm).According to GBD
Value and pad 4 produce density to determine the gap width between carrier and carrier shell 3, it is assumed that are 6mm.According to gap width and carrier
Diameter determines the overall diameter of carrier shell 3, is 284.7mm (it is assumed that material wall thickness is 1.5mm).Then complete carrier shell 3
Make.
The both ends of carrier shell 3 are subjected to enlarging 3a processing, an enlarging 3a a diameter of fixed value, it is assumed that be again
288.7mm.And it is 7 ° to control enlarging 3a sections and the excessive angle of shell section with mould.
Then, the catalyst carrier 5 after padding 4 will be wrapped and is pushed into carrier shell 3 by 7 ° of pre-set guide grooves.
The carrier module that catalyst carrier 5 will have been enclosed in next step encloses the shell body 2 of fixed diameter, shell body 2 it is outer
A diameter of 291.7mm.
Finally complete the encapsulation into escape pipe 6 and end cap 7.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore：It is all according to
The equivalence changes that structure, shape, the principle of the present invention is done, all should be covered by within protection scope of the present invention.
Claims (5)
1. a kind of encapsulating structure of engine aftertreatment system, including shell body (2), it is characterised in that：Shell body (2) is both ends
The integral type tubular shell of air inlet pipe (1) and escape pipe (6) is respectively arranged with, installation catalyst is fixed with inside shell body (2)
The carrier shell (3) of carrier (5).
2. the encapsulating structure of engine aftertreatment system according to claim 1, it is characterised in that：The carrier shell
(3) both ends set the enlarging (3a) with setting value, and enlarging (3a) outer wall is contradicted on shell body (2) inwall.
3. the encapsulating structure of engine aftertreatment system according to claim 2, it is characterised in that：The enlarging (3a) with
The changeover portion (3b) of taper is provided between carrier shell (3).
4. the encapsulating structure of engine aftertreatment system according to claim 1, it is characterised in that：The catalyst carrier
(5) pad (4) is provided between carrier shell (3) inwall.
5. the encapsulating structure of engine aftertreatment system according to claim 1, it is characterised in that：The shell body (2)
Both ends are packaged with end cap (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710760067.9A CN107355286A (en) | 2017-08-29 | 2017-08-29 | The encapsulating structure of engine aftertreatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710760067.9A CN107355286A (en) | 2017-08-29 | 2017-08-29 | The encapsulating structure of engine aftertreatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107355286A true CN107355286A (en) | 2017-11-17 |
Family
ID=60290441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710760067.9A Pending CN107355286A (en) | 2017-08-29 | 2017-08-29 | The encapsulating structure of engine aftertreatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107355286A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838292A (en) * | 2017-11-29 | 2019-06-04 | 珀金斯发动机有限公司 | Exhaust-gas treatment component and assemble method including breathable block and shell |
| CN112621135A (en) * | 2020-12-23 | 2021-04-09 | 河北亿利康纳利亚环保科技有限公司 | Post-treatment non-guide die carrier packaging process |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0592416U (en) * | 1993-05-06 | 1993-12-17 | 三恵技研工業株式会社 | Catalytic converter |
| CN1117752A (en) * | 1993-02-10 | 1996-02-28 | 发射技术有限公司 | Metallic honeycomb structure supported in an inner and an outer casing tube, especially a catalyst support |
| EP1067278A2 (en) * | 1999-07-08 | 2001-01-10 | Ngk Insulators, Ltd. | Canning structure and catalyst carrying method thereof |
| KR20090069950A (en) * | 2007-12-26 | 2009-07-01 | 한국델파이주식회사 | Catalytic converter for exhaust gas of vehicle |
| CN101782009A (en) * | 2009-01-15 | 2010-07-21 | 上海天纳克排气系统有限公司研发分公司 | Catalytic converter for diesel motor exhaust |
| CN201610781U (en) * | 2010-03-11 | 2010-10-20 | 浙江摩多巴克斯汽配有限公司 | Three-way catalytic converter |
| WO2016154316A1 (en) * | 2015-03-24 | 2016-09-29 | Cummins Emission Solutions, Inc. | Integrated aftertreatment system |
| CN207261087U (en) * | 2017-08-29 | 2018-04-20 | 浙江银轮机械股份有限公司 | The encapsulating structure of engine aftertreatment system |
-
2017
- 2017-08-29 CN CN201710760067.9A patent/CN107355286A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117752A (en) * | 1993-02-10 | 1996-02-28 | 发射技术有限公司 | Metallic honeycomb structure supported in an inner and an outer casing tube, especially a catalyst support |
| JPH0592416U (en) * | 1993-05-06 | 1993-12-17 | 三恵技研工業株式会社 | Catalytic converter |
| EP1067278A2 (en) * | 1999-07-08 | 2001-01-10 | Ngk Insulators, Ltd. | Canning structure and catalyst carrying method thereof |
| KR20090069950A (en) * | 2007-12-26 | 2009-07-01 | 한국델파이주식회사 | Catalytic converter for exhaust gas of vehicle |
| CN101782009A (en) * | 2009-01-15 | 2010-07-21 | 上海天纳克排气系统有限公司研发分公司 | Catalytic converter for diesel motor exhaust |
| CN201610781U (en) * | 2010-03-11 | 2010-10-20 | 浙江摩多巴克斯汽配有限公司 | Three-way catalytic converter |
| WO2016154316A1 (en) * | 2015-03-24 | 2016-09-29 | Cummins Emission Solutions, Inc. | Integrated aftertreatment system |
| CN207261087U (en) * | 2017-08-29 | 2018-04-20 | 浙江银轮机械股份有限公司 | The encapsulating structure of engine aftertreatment system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838292A (en) * | 2017-11-29 | 2019-06-04 | 珀金斯发动机有限公司 | Exhaust-gas treatment component and assemble method including breathable block and shell |
| GB2568900B (en) * | 2017-11-29 | 2020-09-02 | Perkins Engines Co Ltd | Exhaust gas treatment assembly comprising a gas permeable block and a housing, and method of assembly |
| CN112621135A (en) * | 2020-12-23 | 2021-04-09 | 河北亿利康纳利亚环保科技有限公司 | Post-treatment non-guide die carrier packaging process |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171117 |