CN202789037U - Three-way catalytic converter for supercharged gasoline engine - Google Patents
Three-way catalytic converter for supercharged gasoline engine Download PDFInfo
- Publication number
- CN202789037U CN202789037U CN 201220472396 CN201220472396U CN202789037U CN 202789037 U CN202789037 U CN 202789037U CN 201220472396 CN201220472396 CN 201220472396 CN 201220472396 U CN201220472396 U CN 201220472396U CN 202789037 U CN202789037 U CN 202789037U
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- Prior art keywords
- catalytic converter
- end cone
- inlet end
- air inlet
- gas inlet
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- Expired - Fee Related
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Abstract
The utility model relates to a three-way catalytic converter for a supercharged gasoline engine. The three-way catalytic converter comprises a gas inlet end cone, a catalytic converter shell body, a gas outlet end cone, a gas outlet flange and a catalytic converter reinforcing bracket, wherein the gas inlet end cone is of a variable-cross-section bent structure, similar to a gooseneck-shaped structure, as a whole, a catalytic converter reinforcing bracket mounting seat is designed on the gas inlet end cone, and a connecting flange connected with the outlet end of a supercharger is integrated with the gas inlet end cone. The entire three-way catalytic converter adopts welding connection, the manufacturing process is simple, and the connection is reliable. The cast gas inlet end cone is similar to a gooseneck shape as a whole, so that mounting tools can be reasonably avoided, the mounting is enabled to be convenient, the requirements on airflow uniformity can be met, the use efficiency of a catalyst is increased, and a better strength for the catalytic converter is ensured. Compared with a mounting seat which is ordinarily welded to the catalytic converter shell body, the catalytic converter reinforcing bracket mounting seat is designed on the gas inlet end cone has the advantages that the influence on the strength of the catalytic converter shell caused by the mounting seat can be avoided, and the strength and reliability of the catalytic converter are improved.
Description
Technical field
The utility model relates to a kind of turbo charged petrol engine vent systems exhaust gas cleaner of being with, and specifically is a kind of ternary catalystic device structure with turbo supercharging gasoline engine.
Background technique
Along with the further propelling of energy-saving and emission-reduction policy, the supercharged engine with power character, Economy advantage becomes a kind of trend of alternate-engine development gradually.Yet supercharged engine is owing to increased turbosupercharger, and the reinforcing degree of motor increases, and ternary catalyzing unit is had higher requirement.The at present design of ternary catalyzing unit mainly has the following disadvantages: the first, owing to increased turbosupercharger, make engine exhaust port and ternary catalyzing unit Placement that change occur, the restriction of vent systems arrangement space makes ternary catalyzing unit be difficult to satisfy the requirement of airflow homogeneity aspect, and difficulty is installed.The second, turbosupercharger increases the weight of whole engine exhaust system, and the reinforcing bracket fitting seat of catalyst converter often is welded on the catalyst converter housing, usually can affect the catalyst converter casing rigidity, brings potential risk.Three, structure ﹠processes relative complex is unfavorable for manufacturing.
The model utility content
For the deficiency that above-mentioned ternary catalyzing unit exists, the utility model proposes a kind of simple in structure, good manufacturability, can satisfy catalyst converter to the airflow homogeneity requirement, can improve again the supercharging gasoline engine ternary catalystic device structure of catalyst converter casing rigidity.
The technical solution of the utility model is as follows:
A kind of ternary catalyzing unit of gasoline supercharging engine, it comprises air inlet end cone, housing, air outlet end cone and catalyst converter reinforcing bracket; Described air inlet end cone, air outlet end cone are welded on respectively the two ends of housing, and described air inlet end cone adopts cast iron materials; Described air inlet end cone is gooseneck shaped (i.e. the whole curved shape structure that is a variable cross section), its large end and catalyst converter housing are welded to connect, small end has the adpting flange of integrally casting moulding, is connected with the outlet end flange of pressurized machine by adpting flange, and two end faces are not point-blank.
Described catalyst converter reinforcing bracket is connected on the air inlet end cone, and the catalyst converter reinforcing bracket is designed with at least two, and they are installed on the air inlet end cone by fitting seat respectively.
The utility model is compared with existing technology and has the following advantages:
1, air inlet end cone integral body is the curved shape structure of a variable cross section, and the air-flow that can guarantee to flow out from pressurized machine is through behind this end cap, has preferably uniformity (airflow homogeneity coefficient UI〉0.95), and the utilization efficiency of catalyzer is improved greatly.
2, but the curved shape structure conserve space of the variable cross section of air inlet end cone satisfies the mounting process requirement of ternary catalyzing unit and pressurized machine.
3, air inlet end cone is integrated adpting flange has reduced the welding of adpting flange.
4, air inlet end cone adopts the cast iron manufacturing, and the catalyst converter reinforcing bracket is installed on the air inlet end cone, has higher intensity, thereby has avoided being installed on the catalyst converter housing impact on the catalyst converter casing rigidity.
5, the ternary catalyzing unit each several part all adopts and is welded to connect, and connects reliably, and technique is simple.
Description of drawings
Accompanying drawing is the utility model external shape and structural representation, wherein:
Fig. 1 is plan view of the present utility model;
Fig. 2 is plan view of the present utility model;
Fig. 3 is the axonometric drawing that waits of air inlet end cone;
Fig. 4 is the assembling schematic representation of catalyst converter reinforcing bracket.
Among the figure: 1, pressurized machine, 2, adpting flange, 3, air inlet end cone, 4, front lambda sensor seat, 5, catalyst converter housing, 6, the catalyzer liner, 7, three-way catalyst, 8, air outlet end cone, 9, air outlet flange, 10, the catalyst converter reinforcing bracket, 11, fitting seat, 12, construction bolt.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described:
Such as Fig. 1-shown in Figure 4, the ternary catalyzing unit of this gasoline supercharging engine comprises air inlet end cone 3, with the adpting flange 2 of air inlet end cone integrally casting moulding, be welded on front lambda sensor seat 4 on the air inlet end cone 3, design catalyst converter reinforcing bracket fitting seat 11, catalyst converter housing 5, air outlet end cone 8 and air outlet flange 9 on air inlet end cone 3.
Air inlet end cone 3 adopts cast iron materials, integral body is the curved shape structure of a variable cross section, approximate gooseneck shaped, its large end and catalyst converter housing 5 are welded to connect, small end has the triangle projective planum flange of integrally casting moulding as adpting flange 2, be connected with the outlet end flange of pressurized machine by the triangle projective planum flange, two end faces are not point-blank.Such structure, when arriving the joint of catalyst converter housing 5 and catalyst converter air inlet end cone 3 so that the waste gas that motor is discharged process turbosupercharger outlet end is flowed through behind the ternary catalyzing unit air inlet end cone 3, the uniformity coefficient of air-flow can be brought up to more than 0.95, can greatly improve the utilization efficiency of catalyzer.In addition, when ternary catalyzing unit is connected with pressurized machine, because this structure has been saved the space, thereby dodge setting tool cleverly, improved the assembly process process of adpting flange 2 with pressurized machine 1.Have, adpting flange 2 is integrated on the air inlet end cone 3 again, is cast as one with air inlet end cone 3, has reduced like this welding process and has made connection more reliable.
Three-way catalyst 7 is installed in catalyst converter housing 5, between three-way catalyst 7 and the catalyst converter housing 5 catalyzer liner 6 is housed, the other end of catalyst converter housing 5 and air outlet end cone 8 are by being weldingly connected.The air outlet of air outlet end cone 8 is welded with air outlet flange 9.
Lambda sensor seat 4 before air inlet end cone 3 is designed with, the fitting seat 11 that also has the catalyst converter reinforcing bracket, one end of catalyst converter reinforcing bracket 10 is connected by construction bolt 12 with fitting seat 11, the other end is installed on engine cylinder-body or the cylinder cap by construction bolt 12, and ternary catalyzing unit and pressurized machine are played good supporting effect.Because air inlet end cone 3 integral body are casting, therefore improved the strength and stiffness of fitting seat 11, more reliable than the common fitting seat that is welded on the catalyst converter housing.This design can avoid fitting seat to be welded on the impact that brings to the catalyst converter casing rigidity on the catalyst converter housing.
Claims (3)
1. the ternary catalyzing unit of a gasoline supercharging engine, it comprises air inlet end cone, housing, air outlet end cone and catalyst converter reinforcing bracket; Described air inlet end cone, air outlet end cone are welded on respectively the two ends of housing, and described air inlet end cone adopts cast iron materials; It is characterized in that: described air inlet end cone is gooseneck shaped, and its large end and catalyst converter housing are welded to connect, and small end has the adpting flange of integrally casting moulding, is connected with the outlet end flange of pressurized machine by adpting flange.
2. the ternary catalyzing unit of gasoline supercharging engine according to claim 1, it is characterized in that: described catalyst converter reinforcing bracket is connected on the air inlet end cone.
3. the ternary catalyzing unit of gasoline supercharging engine according to claim 1, it is characterized in that: the catalyst converter reinforcing bracket is designed with at least two, and they are installed on the air inlet end cone by fitting seat respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220472396 CN202789037U (en) | 2012-09-17 | 2012-09-17 | Three-way catalytic converter for supercharged gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220472396 CN202789037U (en) | 2012-09-17 | 2012-09-17 | Three-way catalytic converter for supercharged gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789037U true CN202789037U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220472396 Expired - Fee Related CN202789037U (en) | 2012-09-17 | 2012-09-17 | Three-way catalytic converter for supercharged gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789037U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594988A (en) * | 2014-12-10 | 2015-05-06 | 安徽江淮汽车股份有限公司 | Gasoline engine catalyst |
| CN106151716A (en) * | 2016-07-15 | 2016-11-23 | 青岛立博汽车零部件精密铸造有限公司 | A kind of integration cast type flange and manufacturing process thereof |
| CN107476867A (en) * | 2016-08-22 | 2017-12-15 | 宝沃汽车（中国）有限公司 | Blast pipe and vehicle |
| CN108343494A (en) * | 2018-04-26 | 2018-07-31 | 清华大学苏州汽车研究院（相城） | A kind of monolith honeycomb catalysts intake elbow and automobile exhaust system |
| CN116378806A (en) * | 2023-03-21 | 2023-07-04 | 泰州鑫宇精工股份有限公司 | Accurate casing of automobile front catalysis air inlet cone |
-
2012
- 2012-09-17 CN CN 201220472396 patent/CN202789037U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594988A (en) * | 2014-12-10 | 2015-05-06 | 安徽江淮汽车股份有限公司 | Gasoline engine catalyst |
| CN106151716A (en) * | 2016-07-15 | 2016-11-23 | 青岛立博汽车零部件精密铸造有限公司 | A kind of integration cast type flange and manufacturing process thereof |
| CN107476867A (en) * | 2016-08-22 | 2017-12-15 | 宝沃汽车（中国）有限公司 | Blast pipe and vehicle |
| CN108343494A (en) * | 2018-04-26 | 2018-07-31 | 清华大学苏州汽车研究院（相城） | A kind of monolith honeycomb catalysts intake elbow and automobile exhaust system |
| CN116378806A (en) * | 2023-03-21 | 2023-07-04 | 泰州鑫宇精工股份有限公司 | Accurate casing of automobile front catalysis air inlet cone |
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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: 20130313 Termination date: 20190917 |