CN102840015A - Three-way catalytic converter assembly of small-displacement engine exhaust manifold - Google Patents
Three-way catalytic converter assembly of small-displacement engine exhaust manifold Download PDFInfo
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- CN102840015A CN102840015A CN2012103683468A CN201210368346A CN102840015A CN 102840015 A CN102840015 A CN 102840015A CN 2012103683468 A CN2012103683468 A CN 2012103683468A CN 201210368346 A CN201210368346 A CN 201210368346A CN 102840015 A CN102840015 A CN 102840015A
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- exhaust manifold
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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 invention relates to a three-way catalytic converter assembly of a small-displacement engine exhaust manifold, which particularly comprises an exhaust manifold, a three-way catalytic converter and an oxygen sensor, wherein air ways of the exhaust manifold are formed by bending stainless steel pipes, and are approximately equal in length. Inlet ends of the air ways are circular, and are welded with inlet flanges together, outlet ends of air ways of cylinders are respectively in the shape of a 120-degree sector, and three sectors form a circle, and are then welded with a taper at air inlet end of the three-way catalytic converter together. The taper at the air inlet end of the three-way catalytic converter adopts a spherical structure, and the lower part of the taper is welded with a shell of the three-way catalytic converter. A taper at the air outlet end of the three-way catalytic converter also adopts a spherical structure. The lower end of the taper at the air outlet is welded with an outlet pipe, a rear oxygen sensor holder is welded with the outlet pipe, and the lower end of the outlet pipe is welded with an outlet flange, so that the rear oxygen sensor holder can be welded on the three-way catalytic converter assembly of the exhaust manifold. The three-way catalytic converter assembly has the advantages of compact structure, simple assembly and low cost. The longer air ways, the three-way catalytic converter and the oxygen sensor holder are distributed within a limited space, so the requirements to engine performance and high discharge standards can be met.
Description
Technical field
The present invention relates to automobile engine exhaust system, be specifically related to a kind of small displacement engine exhaust manifold band ternary catalytic converter assembly structure.
Background technique
Along with rules increasingly stringents such as oil consumption, environmental protection, people more and more pay attention to Economy car, environment etc., and this just requires triple mode catalytic converter ignition fast, solve during the cold starting because delivery temperature is crossed the low problem that can't satisfy emission standard.Simultaneously, in order to satisfy engine air flue exhaust uniformity, require air flue (be gas exhaust manifold enter the mouth the distance of three-way catalyst front-end face) long as far as possible usually.Its air flue of the structure of present most of close coupled type gas exhaust manifolds adopts punching press half shell to be welded more, and air flue shape homogeneity is relatively poor, and each airway length differs greatly, while production technology more complicated, and cost is higher.In addition, because punching press half-shell air passage structure welding part is more, welding bead is longer, and gas exhaust manifold air flue quality conformance is relatively poor.In addition, in order to prevent discharging to be caused adverse influence, also to arrange post oxygen sensor on the gas exhaust manifold because of adpting flange gas leakage causes the ECU false judgment.Post oxygen sensor should be arranged on the connecting tube between three-way catalyst outlet and the gas exhaust manifold outlet(discharge) flange; Modify post oxygen sensor in order to prevent the condensed water in the waste gas; And require post oxygen sensor center line and horizontal plane angle greater than 10 °, but this arrangement space is limited.Therefore, arrange that in limited space long air flue, catalyst converter and post oxygen sensor are design difficulties.
Summary of the invention
The purpose of this invention is to provide a kind of emission standard height, compact structure, assembling is simple, cost is low small displacement engine exhaust manifold band ternary catalytic converter assembly structure, solve the problem of in limited arrangement space, arranging sufficiently long exhaust air flue, catalyst converter and post oxygen sensor.
Technological scheme of the present invention is following:
A kind of automobile with small output volumn engine exhaust manifold with three-way catalytic converter assembly comprises gas exhaust manifold, ternary catalyzing unit and lambda sensor seat; Ingress at said gas exhaust manifold is fixedly connected the suction flange dish, and said catalyst converter is bored, gone out to manage by inlet end awl, housing, the outlet side of welding successively and outlet(discharge) flange is formed.Its improvement is: said ternary catalyzing unit inlet end awl adopts hemispherical dome structure; Said air flue adopts the Stainless Steel Tube bending to form; The outlet of each air flue is identical sector structure; A complete circle is formed in the sector crosssection outlet of all air flues, with the inlet end awl upper end welding of hemispherical dome structure.Like this, adopt Stainless Steel Tube bending welding type air flue, arranges comparatively flexibly, realize long air flue easily, improving performance requirement, and through optimal design air flue pipeline trend, satisfy air flue bend pipe, distortion place flange distortion amount, the raising reliability requirement.Simultaneously because ternary catalyzing unit inlet end awl adopts the hemisphere design; Cooperate each cylinder air flue outlet to adopt fan-shaped design; A complete circle is formed in all air flue outlets altogether, can satisfy the spatial arrangement requirement, satisfies the requirement of car load clearance; Reduce the exhaust power loss simultaneously, cost is low, total coating process good.
Preferably, said gas exhaust manifold is three, i.e. three air flues, its sector crosssection outlet be 120 ° fan-shaped.
Further, said gas exhaust manifold is vertically welded in the suction flange dish.
In addition; In order to prevent to cause the ECU false judgment because of adpting flange gas leakage; Discharging is caused adverse influence, and said lambda sensor seat is divided into prime lambda sensor seat and back level lambda sensor seat, and prime lambda sensor seat is installed on the inlet end awl; Back level lambda sensor seat is welded on out on the pipe, i.e. the front end of outlet(discharge) flange.
The suction flange of said gas exhaust manifold adopts the 8mm cast flange, to improve the flange distortion amount, satisfies seal request.
Said outlet side awl adopts the corrosion resistant plate punching structure.
Visible by said structure: the present invention adopts the close coupling structure, has solved the problem of in limited arrangement space, arranging sufficiently long exhaust air flue, catalyst converter and post oxygen sensor.Make the catalyzer of ternary catalyzing unit satisfy under the condition of performance as far as possible, make the quick ignition of catalyzer (discharging when improving cold start-up), only with the emission standard of one-level catalysis with regard to (can reach state's V) near the gas exhaust manifold inlet.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the shape schematic representation of each cylinder air flue outlet.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, the suction flange 1 of this exhaust manifold with three-way catalytic converter assembly adopts 8 mm cast flanges, with respect to low, the lightweight stainless steel punching press of cost flange, can reduce the flange distortion amount, improves sealability.The air flue 2,3,4 of gas exhaust manifold all adopts the Stainless Steel Tube bending to form, and through design optimization, increases airway length as far as possible, helps improving engine performance.The inlet of each air flue is circular, respectively with suction flange 1 vertical welding.The cross section of each cylinder air flue outlet 21,31 and 41 is 120 ° a sector structure, and three sector structures consist of circle together, and the upper end with ternary catalyzing unit inlet end awl is connected then, and the inlet end awl is hemisphere.Be that air flue 2,3,4 is welded into the gas exhaust manifold part with suction flange 1, ternary catalyzing unit inlet end awl 5 respectively.Inlet end awl 5 welding of ternary catalyzing unit housing 6 upper ends and ternary catalyzing unit, lower end and 7 welding of outlet side awl, the outlet side is bored 7 lower ends and is welded out pipe 8; Signal error is judged for fear of leaking gas once more because of adpting flange; Prime lambda sensor seat is installed on the inlet end awl that converges with three cylinders, and post oxygen sensor seat 9 is welded on out on the pipe 8, and outlet(discharge) flange 10 is welded on out on the pipe 8; For the ease of silencing apparatus and gas exhaust manifold assembling, on outlet(discharge) flange 10, be welded with 2 welded nuts.The outlet side awl is by the corrosion resistant plate punching structure.
Claims (6)
1. an automobile with small output volumn engine exhaust manifold with three-way catalytic converter assembly comprises gas exhaust manifold, ternary catalyzing unit and lambda sensor seat; Be fixedly connected the suction flange dish in said gas exhaust manifold air flue ingress, said catalyst converter is bored, gone out to manage by inlet end awl, housing, the outlet side of welding successively and outlet(discharge) flange is formed;
It is characterized in that: said ternary catalyzing unit inlet end awl adopts hemispherical dome structure; The air flue of said gas exhaust manifold adopts the Stainless Steel Tube bending to form; The outlet of each air flue is identical sector structure; A complete circle is formed in the sector crosssection outlet of all air flues, with the inlet end awl upper end welding of hemispherical dome structure.
2. automobile with small output volumn engine exhaust manifold with three-way catalytic converter assembly according to claim 1 is characterized in that, said gas exhaust manifold is three, the outlet of its sector crosssection be 120 ° fan-shaped.
3. automobile with small output volumn engine exhaust manifold with three-way catalytic converter assembly according to claim 1 and 2 is characterized in that the air flue of said gas exhaust manifold is vertically welded in the suction flange dish.
4. automobile with small output volumn engine exhaust manifold with three-way catalytic converter assembly according to claim 3; It is characterized in that; Said lambda sensor seat is divided into prime lambda sensor seat and back level lambda sensor seat; Prime lambda sensor seat is installed on the inlet end awl, and back level lambda sensor seat is welded on out on the pipe, i.e. the front end of outlet(discharge) flange.
5. automobile with small output volumn engine exhaust manifold with three-way catalytic converter assembly according to claim 4 is characterized in that, the suction flange of said gas exhaust manifold adopts the 8mm cast flange.
6. automobile with small output volumn engine exhaust manifold with three-way catalytic converter assembly according to claim 5 is characterized in that, said outlet side awl adopts the corrosion resistant plate punching structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103683468A CN102840015A (en) | 2012-09-28 | 2012-09-28 | Three-way catalytic converter assembly of small-displacement engine exhaust manifold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103683468A CN102840015A (en) | 2012-09-28 | 2012-09-28 | Three-way catalytic converter assembly of small-displacement engine exhaust manifold |
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| CN102840015A true CN102840015A (en) | 2012-12-26 |
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| CN2012103683468A Pending CN102840015A (en) | 2012-09-28 | 2012-09-28 | Three-way catalytic converter assembly of small-displacement engine exhaust manifold |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131874A (en) * | 2014-08-14 | 2014-11-05 | 无锡红湖消声器有限公司 | Exhaust manifold assembly with three-way catalyst |
| CN104234810A (en) * | 2014-08-29 | 2014-12-24 | 力帆实业(集团)股份有限公司 | Engine exhaust manifold and engine |
| CN104481661A (en) * | 2014-11-25 | 2015-04-01 | 镇江利奥排气技术有限公司 | Exhaust manifold with good exhaust performance |
| CN104564294A (en) * | 2014-11-03 | 2015-04-29 | 镇江利奥排气技术有限公司 | Novel sector-shaped opening manifold branch of exhausting pipe |
| CN104975926A (en) * | 2015-06-25 | 2015-10-14 | 华晨汽车集团控股有限公司 | Exhaust manifold device and front end cover processing method |
| CN108590824A (en) * | 2018-01-26 | 2018-09-28 | 江铃控股有限公司 | Three-way catalytic converter assembly and automobile |
| WO2019192123A1 (en) * | 2018-04-02 | 2019-10-10 | 天纳克（苏州）排放系统有限公司 | Inlet cone and exhaust after-treatment device therefor |
| CN112901317A (en) * | 2021-03-16 | 2021-06-04 | 安徽江淮汽车集团股份有限公司 | Three way catalyst converter packaging structure, engine assembly and car |
| CN112958885A (en) * | 2021-02-04 | 2021-06-15 | 中国第一汽车股份有限公司 | Welding method of oxygen sensor base |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1213454A2 (en) * | 2000-12-07 | 2002-06-12 | Nissan Motor Company, Limited | Exhaust manifold for internal combustion engine |
| JP2004353583A (en) * | 2003-05-29 | 2004-12-16 | Calsonic Kansei Corp | Assembly part structure of exhaust manifold |
| CN201554535U (en) * | 2009-11-24 | 2010-08-18 | 重庆长安汽车股份有限公司 | Vehicle engine exhaust manifold assembly with catalyst converter |
| CN201635807U (en) * | 2010-03-18 | 2010-11-17 | 重庆长安汽车股份有限公司 | Three-way catalytic converter assembly of automobile engine |
| CN101922343A (en) * | 2010-09-21 | 2010-12-22 | 重庆长安汽车股份有限公司 | Engine exhaust manifold with three-way catalytic converter assembly |
| CN201963384U (en) * | 2011-04-14 | 2011-09-07 | 重庆长安汽车股份有限公司 | Automobile engine exhaust manifold assembly |
-
2012
- 2012-09-28 CN CN2012103683468A patent/CN102840015A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1213454A2 (en) * | 2000-12-07 | 2002-06-12 | Nissan Motor Company, Limited | Exhaust manifold for internal combustion engine |
| JP2004353583A (en) * | 2003-05-29 | 2004-12-16 | Calsonic Kansei Corp | Assembly part structure of exhaust manifold |
| CN201554535U (en) * | 2009-11-24 | 2010-08-18 | 重庆长安汽车股份有限公司 | Vehicle engine exhaust manifold assembly with catalyst converter |
| CN201635807U (en) * | 2010-03-18 | 2010-11-17 | 重庆长安汽车股份有限公司 | Three-way catalytic converter assembly of automobile engine |
| CN101922343A (en) * | 2010-09-21 | 2010-12-22 | 重庆长安汽车股份有限公司 | Engine exhaust manifold with three-way catalytic converter assembly |
| CN201963384U (en) * | 2011-04-14 | 2011-09-07 | 重庆长安汽车股份有限公司 | Automobile engine exhaust manifold assembly |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131874A (en) * | 2014-08-14 | 2014-11-05 | 无锡红湖消声器有限公司 | Exhaust manifold assembly with three-way catalyst |
| CN104234810A (en) * | 2014-08-29 | 2014-12-24 | 力帆实业(集团)股份有限公司 | Engine exhaust manifold and engine |
| CN104564294A (en) * | 2014-11-03 | 2015-04-29 | 镇江利奥排气技术有限公司 | Novel sector-shaped opening manifold branch of exhausting pipe |
| CN104481661A (en) * | 2014-11-25 | 2015-04-01 | 镇江利奥排气技术有限公司 | Exhaust manifold with good exhaust performance |
| CN104975926A (en) * | 2015-06-25 | 2015-10-14 | 华晨汽车集团控股有限公司 | Exhaust manifold device and front end cover processing method |
| CN104975926B (en) * | 2015-06-25 | 2017-07-21 | 华晨汽车集团控股有限公司 | A kind of exhaust manifold device and drive end bearing bracket processing method |
| CN108590824A (en) * | 2018-01-26 | 2018-09-28 | 江铃控股有限公司 | Three-way catalytic converter assembly and automobile |
| WO2019192123A1 (en) * | 2018-04-02 | 2019-10-10 | 天纳克（苏州）排放系统有限公司 | Inlet cone and exhaust after-treatment device therefor |
| CN112958885A (en) * | 2021-02-04 | 2021-06-15 | 中国第一汽车股份有限公司 | Welding method of oxygen sensor base |
| CN112901317A (en) * | 2021-03-16 | 2021-06-04 | 安徽江淮汽车集团股份有限公司 | Three way catalyst converter packaging structure, engine assembly and car |
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Application publication date: 20121226 |