CN204152606U - A kind of ternary catalyzing unit - Google Patents
A kind of ternary catalyzing unit Download PDFInfo
- Publication number
- CN204152606U CN204152606U CN201420551423.8U CN201420551423U CN204152606U CN 204152606 U CN204152606 U CN 204152606U CN 201420551423 U CN201420551423 U CN 201420551423U CN 204152606 U CN204152606 U CN 204152606U
- Authority
- CN
- China
- Prior art keywords
- catalyst converter
- entry end
- catalyzing unit
- ternary catalyzing
- end cone
- 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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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 Gas After Treatment (AREA)
Abstract
The utility model proposes a kind of ternary catalyzing unit of vent systems of motor car engine, comprise gas exhaust manifold, catalyst converter entry end cone and catalyst converter body, the top that gas exhaust manifold is bored with catalyst converter entry end is connected, the bottom of catalyst converter entry end cone is connected with catalyst converter body, the middle part of catalyst converter entry end cone is set to the throat structure of flaring after a first convergent, the reducing angle of the several angle that this throat structure is formed.Adopt the ternary catalyzing unit of this structure, first concentrate and then diffusion of expanding after contributing to that waste gas inlet end is bored, in comparatively short distance, exhaust gas flow direction is fully adjusted, uniform stream is guided to enter ternary catalyzing unit, thus improve the velocity uniformity of waste gas streams to ternary catalyzing unit, avoid the exhaust-gas flow disorder in entry end cone to produce eddy current.
Description
Technical field
The utility model relates to automobile engine exhaust system field, is specifically related to a kind of ternary catalyzing unit of vent systems of motor car engine.
Background technique
Along with the raising of discharging standards, the requirement of motor vehicle exhaust emission is also more and more stricter.Make automobile meet the emission standard of national regulation, then must on its engine exhaust system, adopt three-way catalyst to carry out the harmful gas compositions such as CO, HC, NOx in purifying exhaust air.Owing to arranging, the carrier coating entry end velocity uniformity of ternary catalyzing unit traditional in automobile is lower, in use fails to play its whole transformation.If ternary catalyzing unit entry end velocity uniformity can be improved, the transformation efficiency of ternary catalyzing unit and the durability of ternary catalyzing unit discharge function can be improved, thus realize Economy and the reliability of motor.
As depicted in figs. 1 and 2, the waste gas that automobile produces directly enters ternary catalyzing unit body after having gas exhaust manifold to enter ternary catalyzing unit entry end cone to the working principle of the vent systems of existing automobile.Because exhaust gas flow direction changes larger after gas exhaust manifold inlet end cone, when without any water conservancy diversion, waste gas is at entry end cone lower end movement disorder, produce eddy current, make carrier coating entry end velocity uniformity in ternary catalyzing unit body low, transformation efficiency is low, thus makes the discharge of motor car engine cannot meet the emission standard of national regulation.
Model utility content
For the deficiency that currently available technology exists, the utility model provides a kind of catalytic conversion efficiency improving self, strengthens the ternary catalyzing unit of emission control function durability.
The technical solution of the utility model is as follows:
A kind of ternary catalyzing unit, comprise gas exhaust manifold, catalyst converter entry end cone and catalyst converter body, the top that gas exhaust manifold is bored with catalyst converter entry end is connected, the bottom of catalyst converter entry end cone is connected with catalyst converter body, the middle part of described catalyst converter entry end cone is set to the throat structure of flaring after a first convergent, the reducing angle α of the several angle that this throat structure is formed.
Further, the reducing angle α at described catalyst converter entry end cone middle part is 55 °.
Adopt the ternary catalyzing unit of technique scheme, due to the middle part of boring at its catalyst converter entry end have employed first convergent after the throat structure of flaring, change original structure, first concentrate and then diffusion of expanding after contributing to that waste gas inlet end is bored, in comparatively short distance, exhaust gas flow direction is fully adjusted, guide uniform stream to enter ternary catalyzing unit, thus improve the velocity uniformity of waste gas streams to ternary catalyzing unit, avoid the exhaust-gas flow disorder in entry end cone to produce eddy current.
With existing Technical comparing, the utility model has following advantage: structure is simple, only does less change for original structure, can play good effect; Improve the velocity uniformity of waste gas by ternary catalyzing unit, thus improve utilization ratio and the changing effect of ternary catalyzing unit, extend its working life.Analyzed by the computer hydrokinetics (CFD) of automobile, can specify the concrete present situation of catalyst converter entry end cone, different vehicles also can be arranged according to space and be carried out corresponding optimal design.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing ternary catalyzing unit;
Fig. 2 is the sectional view of existing ternary catalyzing unit;
Fig. 3 is the structural representation of ternary catalyzing unit described in the utility model;
Fig. 4 is the sectional drawing of ternary catalyzing unit described in the utility model.
In figure, 1 is gas exhaust manifold, 2 is that catalyst converter entry end cone, 3 is for catalyst converter body.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 3, ternary catalyzing unit, comprise gas exhaust manifold 1, catalyst converter entry end cone 2 and catalyst converter body 3, the top that gas exhaust manifold 1 bores 2 with catalyst converter entry end is connected, and the bottom of catalyst converter entry end cone 2 is connected with catalyst converter body 3.
The middle part of catalyst converter entry end cone 2 is the throat structure of flaring after first convergent as shown in Figure 3 by straight transitions structure optimization as shown in Figure 1, and this throat structure forms angle α.Reducing angle α can be set to 55 ° of angles.
In the utility model, the top of catalyst converter entry end cone 2 and gas exhaust manifold 1 linkage structure, the catalyst converter entry end cone below of 2 and the linkage structure of catalyst converter body 3 all do not change, so do not affect former welding procedure.
Adopt the utility model, can ensure that waste gas fully can adjust flow direction from gas exhaust manifold by ternary catalyzing unit entry end cone, catalyst converter entry end cone can guide uniform stream to enter ternary catalyzing unit, avoids waste gas movement disorder generation within it eddy current; Maintain original welding procedure simultaneously.
Claims (2)
1. a ternary catalyzing unit, comprise gas exhaust manifold, catalyst converter entry end cone and catalyst converter body, the top that described gas exhaust manifold is bored with catalyst converter entry end is connected, the bottom of catalyst converter entry end cone is connected with catalyst converter body, it is characterized in that: the middle part of described catalyst converter entry end cone is set to the throat structure of flaring after a first convergent, the reducing angle of the several angle that this throat structure is formed.
2. ternary catalyzing unit as claimed in claim 1, is characterized in that: the reducing angle at described catalyst converter entry end cone middle part is 55 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551423.8U CN204152606U (en) | 2014-09-24 | 2014-09-24 | A kind of ternary catalyzing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551423.8U CN204152606U (en) | 2014-09-24 | 2014-09-24 | A kind of ternary catalyzing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204152606U true CN204152606U (en) | 2015-02-11 |
Family
ID=52510730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420551423.8U Expired - Fee Related CN204152606U (en) | 2014-09-24 | 2014-09-24 | A kind of ternary catalyzing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204152606U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2022205495A1 (en) * | 2021-04-01 | 2022-10-06 | 台湾积体电路制造股份有限公司 | Wafer electrode cleaning apparatus |
-
2014
- 2014-09-24 CN CN201420551423.8U patent/CN204152606U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2022205495A1 (en) * | 2021-04-01 | 2022-10-06 | 台湾积体电路制造股份有限公司 | Wafer electrode cleaning apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20150211 Termination date: 20190924 |