CN202176393U - Exhaust manifold with three-way catalytic converter - Google Patents
Exhaust manifold with three-way catalytic converter Download PDFInfo
- Publication number
- CN202176393U CN202176393U CN2011202784161U CN201120278416U CN202176393U CN 202176393 U CN202176393 U CN 202176393U CN 2011202784161 U CN2011202784161 U CN 2011202784161U CN 201120278416 U CN201120278416 U CN 201120278416U CN 202176393 U CN202176393 U CN 202176393U
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- CN
- China
- Prior art keywords
- catalyzing unit
- ternary catalyzing
- exhaust manifold
- catalytic converter
- way catalytic
- 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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Abstract
The utility model relates to an exhaust manifold with a three-way catalytic converter, which comprises a branch pipe and the three-way catalytic converter connected on the branch pipe. The branch pipe comprises a gas inlet end and a gas outlet end. The exhaust manifold is characterized in that both ends of a shell of the three-way catalytic converter are lengthened and are spun to form a front cone cover and a rear cone cover; the gas inlet end of the branch pipe is in welding connection with a front flange plate; the gas outlet end of the branch pipe is in welding connection with the front cone cover of the three-way catalytic converter; and the rear cone cover of the three-way catalytic converter is in welding connection with a rear flange plate. In the utility model, the three-way catalytic converter is directly connected with the exhaust manifold, so that the waste gas processing efficiency is improved; due to the adoption of a punch forming exhaust manifold structure, the installing space of an engine is reduced and the manufacturing cost is reduced; after the three-way catalytic converter is packaged, the cone covers are formed at both the ends of the three-way catalytic converter by a spinning process and weld joints are reduced, so that gas flow entering the three-way catalytic converter is more stable and is avoided being influenced by the weld joints to generate large fluctuation.
Description
Technical field
The utility model relates to a kind of gas exhaust manifold, particularly a kind of gas exhaust manifold with ternary catalyzing unit.
Background technique
At present; Behind the waste gas process gas exhaust manifold that motor car engine is discharged is not directly to get in the ternary catalyzing unit usually; But handle through getting in the catalyst converter again behind the connecting tube, this with regard to there being waste gas because temperature reduces and makes the problem that catalyst can't in time be changed behind piping.
For can let catalyzer fast the content that discharges pollutants of ignition and reducing this, people carry out ternary catalyzing unit and gas exhaust manifold integrated, make waste gas through the gas exhaust manifold outlet side directly to get into catalyst converter and handle, and improve catalytic efficiency.Like the patent No. is that the Chinese utility model patent " automobile with small output volumn Engine Exhaust manifold Device " of ZL200820089987.9 just discloses a kind of integrated automobile with small output volumn Engine Exhaust manifold Device of catalyst converter; Be characterized in: small flange plate and steam outlet pipe are welded to connect; The rear end awl is welded to connect with the rear end awl; The front end awl is welded to connect with the front end awl, and catalyzer, liner are in housing, and No. 1 pipe, No. 2 pipes, No. 3 pipes, No. 4 Guan Yiduan insert respectively in the big flange plate circular hole; Weld, the other end inserts respectively in front end awl and the front end awl and is welded to connect.Though above-mentionedly carried out catalyst converter and gas exhaust manifold integrated; But; The front end of catalyst converter awl and rear end awl cause weld seam bigger after the welding, and weld form trapezoidal faces through welding fabrication in the above-mentioned patent; Make to get into the air-flow instability the catalyst converter, influence the overall performance of product from manifold.
The model utility content
The utility model technical problem to be solved is to provide a kind of can effectively reduce weld seam and make air-flow more stably with the gas exhaust manifold of ternary catalyzing unit to above-mentioned existing technology present situation.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of gas exhaust manifold with ternary catalyzing unit; Include arm and be connected the ternary catalyzing unit on this arm; Said arm includes inlet end and outlet side; It is characterized in that: the housing two ends lengthening of said ternary catalyzing unit and rotary press modelling have preceding cone-shaped hood and back cone-shaped hood; The inlet end of said arm and forward flange dish are weldingly connected, and the preceding cone-shaped hood of the outlet side of this arm and said ternary catalyzing unit is weldingly connected, and the back cone-shaped hood and the rear stub of said ternary catalyzing unit are weldingly connected.
As preferably, described arm has four, and said four arms are provided with lambda sensor at the central point that mixes that crosses.Lambda sensor can detect the oxygen molecule content in the manifold; And feed back to ECU, thus the air inflow of control manifold, and; Lambda sensor is arranged on the central point that four arm air-flows converge, and can fully detect the mixed temperature of air-flow and the oxygen molecule content of four arms.
In order to enhance productivity, simplify technology, as preferably, said arm is welded by stamping forming upper shell and lower shell body.
Because enter the waste gas typical temperature of manifold through motor higher, in order to realize effective isolation, as preferably, is arranged with first thermal shield outside the said arm, is arranged with second thermal shield outside the housing of said ternary catalyzing unit.So thermal shield can effectively prevent the component of the radiation heat damage periphery of engine exhaust.
The fixed installation of thermal shield and dismounting for ease, as preferably, said forward flange dish is provided with first support, and said arm is provided with second support, and said first thermal shield is connected on said first support and second support through bolt; Said ternary catalyzing unit shell is provided with a plurality of the 3rd supports, and said second thermal shield passes through bolt on said the 3rd support.
Also be provided with on the said ternary catalyzing unit housing and be used for the supporting frame that is connected being installed with engine cylinder-body.This supporting frame can be fixed to exhaust manifold assembly on the engine cylinder-body, can avoid the resonance of gas exhaust manifold and engine producing.
Compared with prior art; The advantage of the utility model is: ternary catalyzing unit directly is connected with gas exhaust manifold; Guaranteed that not only waste gas can in time get into the ternary catalyzing unit reaction; Improve waste gas treatment efficient, and do not reached the problem of emission request when having solved cold start-up because of delivery temperature is low; Adopt stamping forming exhaust branch pipe structure, not only reduce the installing space of motor, also reduced manufacture cost; Ternary catalyzing unit encapsulation back through spinning process at two ends the moulding cone-shaped hood; After traditional front and back cone-shaped hood moulding again with the technology of ternary catalyzing unit welding; Not only reduced weld seam; And, avoid air-flow to receive weld seam to influence generation than great fluctuation process because ternary catalyzing unit two ends lengthening makes that the air-flow that gets into ternary catalyzing unit is more stable.
Description of drawings
Fig. 1 is the utility model embodiment's automobile engine to exhaust manifold assembly schematic representation (thermal shield is not installed).
Fig. 2 is a side view (thermal shield is not installed) shown in Figure 1.
Fig. 3 is the utility model embodiment's an automobile engine to exhaust manifold assembly schematic representation (installation thermal shield).
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Like Fig. 1～shown in Figure 3; Present embodiment is a kind of automobile engine to exhaust manifold assembly with ternary catalyzing unit; This gas exhaust manifold includes preceding four hole flange plate 1, arm 2, ternary catalyzing unit 3 and rear stub 4, and wherein, preceding four hole flange plate 1 are used for fixedly mounting with engine cylinder-body; Arm 2 is four tubular constructions; This four manifold configuration is welded by stamping forming upper shell of corrosion resistant plate and lower shell body, and the bolt mounting holes of avoiding above the preceding four hole flange plate 1 out of shape of four arms is so that socket wrench is assembled to exhaust branch pipe 1 usefulness screw bolt and nut on the engine cylinder-body; Four arms 1 converge to a cylindrical body and cross and mix; This cylindrical body place is provided with lambda sensor 5, and for mixed temperature of the air-flow that fully detects four arms and oxygen molecule content, the position of lambda sensor 5 just in time is positioned at crossing of four arms and mixes on the central point; Guarantee that with this lambda sensor 5 detects the temperature and the oxygen molecule content of motor four gases that cylinder is discharged all the time, thereby guarantee that testing signal can feed back to corresponding ECU accurately.
After the ternary catalyzing unit carrier of present embodiment and the non-metallic liner encapsulation; The housing two ends lengthening of ternary catalyzing unit 3; And through cone-shaped hood before the eccentric spinning process rotary press modelling 31 and back cone-shaped hood 32; The inlet end of four arms 2 and the corresponding flange hole of preceding four hole flange plate 1 are weldingly connected, and converge the outlet side of four arms 2 is one the tunnel and is weldingly connected with the preceding cone-shaped hood 31 of ternary catalyzing unit 3, and 32 of back cone-shaped hoods of ternary catalyzing unit 3 and rear stub 4 are weldingly connected; Because a side of preceding cone-shaped hood 31 and back cone-shaped hood 32 is the housing rotary press modellings with ternary catalyzing unit 3; When exhaust branch pipe 2 is connected with ternary catalyzing unit 3, only need be in the opposite side welding of preceding cone-shaped hood 31, when rear stub 4 is connected with ternary catalyzing unit 3; Also only need be in the opposite side welding of back cone-shaped hood 32; Carry out the two ends welded structure compared with Traditional use enlarging part, reduced weld seam quantity, ternary catalyzing unit 3 suction ports and air outlet are housing lengthening back rotary press modelling; Effectively avoided of the influence of the trapezoidal faces of weld seam, guaranteed to get into the airflow stability in the ternary catalyzing unit 3 air-flow.
In order to prevent the peripheral component of radiation heat damage of engine exhaust; Be arranged with first thermal shield 61 outside the exhaust branch pipe 2; Be arranged with second thermal shield 62 outside the ternary catalyzing unit 3, wherein, forward flange dish 1 is provided with first support 71; Exhaust branch pipe 2 be provided with second support, 72, the first thermal shields 61 through bolt on first support 71 and second support 72; The shell both sides of ternary catalyzing unit 3 are respectively arranged with two the 3rd supports, 73, the second thermal shields 62 and are connected on the 3rd support 73 through bolt; So, all be arranged with thermal shield on exhaust branch pipe 2 and the ternary catalyzing unit 3, can play effective heat-blocking action, prevent the component of the radiation heat damage periphery of engine exhaust.
Also be welded with a supporting frame 8 on the housing of ternary catalyzing unit 3, exhaust manifold assembly be fixed on the engine cylinder-body, guarantee the reliability and stability of connection, thereby can avoid gas exhaust manifold and engine producing resonance through supporting frame 8.
The whole welding procedure of present embodiment all adopts robot welding, and the overall structure of gas exhaust manifold is more compact, and the technology manufacturing is simple, can satisfy the engine power performance requirement, reaches the emission standard of state IV or state V.
Claims (6)
1. gas exhaust manifold with ternary catalyzing unit; Include arm and be connected the ternary catalyzing unit on this arm; Said arm includes inlet end and outlet side, it is characterized in that: the housing two ends lengthening of said ternary catalyzing unit and rotary press modelling have preceding cone-shaped hood and back cone-shaped hood, and the inlet end of said arm and forward flange dish are weldingly connected; The preceding cone-shaped hood of the outlet side of this arm and said ternary catalyzing unit is weldingly connected, and the back cone-shaped hood and the rear stub of said ternary catalyzing unit are weldingly connected.
2. the gas exhaust manifold of band ternary catalyzing unit according to claim 1 is characterized in that: described arm has four, and said four arms are provided with lambda sensor at the central point that mixes that crosses.
3. the gas exhaust manifold of band ternary catalyzing unit according to claim 1 and 2 is characterized in that: said arm is welded by stamping forming upper shell and lower shell body.
4. the gas exhaust manifold of band ternary catalyzing unit according to claim 3 is characterized in that: be arranged with first thermal shield outside the said arm, be arranged with second thermal shield outside the housing of said ternary catalyzing unit.
5. the gas exhaust manifold of band ternary catalyzing unit according to claim 4; It is characterized in that: said forward flange dish is provided with first support; Said arm is provided with second support, and said first thermal shield is connected on said first support and second support through bolt; Said ternary catalyzing unit shell is provided with a plurality of the 3rd supports, and said second thermal shield passes through bolt on said the 3rd support.
6. the gas exhaust manifold of band ternary catalyzing unit according to claim 5 is characterized in that: also be provided with on the said ternary catalyzing unit housing and be used for engine cylinder-body the supporting frame be connected being installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202784161U CN202176393U (en) | 2011-07-29 | 2011-07-29 | Exhaust manifold with three-way catalytic converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202784161U CN202176393U (en) | 2011-07-29 | 2011-07-29 | Exhaust manifold with three-way catalytic converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202176393U true CN202176393U (en) | 2012-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202784161U Expired - Lifetime CN202176393U (en) | 2011-07-29 | 2011-07-29 | Exhaust manifold with three-way catalytic converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202176393U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244249A (en) * | 2013-05-07 | 2013-08-14 | 上汽通用五菱汽车股份有限公司 | Tightly-coupled exhaust manifold assembly |
| CN103362616A (en) * | 2013-07-29 | 2013-10-23 | 重庆长安汽车股份有限公司 | Three-way catalyst assembly |
| 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 |
| CN110439662A (en) * | 2019-07-30 | 2019-11-12 | 东风柳州汽车有限公司 | Close coupling exhaust manifold and production method |
| CN111350572A (en) * | 2018-12-24 | 2020-06-30 | 观致汽车有限公司 | Heat shield for engine catalyst |
-
2011
- 2011-07-29 CN CN2011202784161U patent/CN202176393U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244249A (en) * | 2013-05-07 | 2013-08-14 | 上汽通用五菱汽车股份有限公司 | Tightly-coupled exhaust manifold assembly |
| CN103362616A (en) * | 2013-07-29 | 2013-10-23 | 重庆长安汽车股份有限公司 | Three-way catalyst assembly |
| 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 |
| CN111350572A (en) * | 2018-12-24 | 2020-06-30 | 观致汽车有限公司 | Heat shield for engine catalyst |
| CN110439662A (en) * | 2019-07-30 | 2019-11-12 | 东风柳州汽车有限公司 | Close coupling exhaust manifold and production method |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hongxing Road 315033 Zhejiang province Ningbo Jiangbei Industrial Zone No. 8 A Patentee after: ZHEJIANG MOTORBACS TECHNOLOGY CO., LTD. Address before: Hongxing Road 315033 Zhejiang province Ningbo Jiangbei Industrial Zone No. 8 A Patentee before: Zhejiang Motorbacs Autoparts Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120328 |
|
| CX01 | Expiry of patent term |