CN203441577U - Tight coupling type exhaust manifold - Google Patents
Tight coupling type exhaust manifold Download PDFInfo
- Publication number
- CN203441577U CN203441577U CN201320518424.8U CN201320518424U CN203441577U CN 203441577 U CN203441577 U CN 203441577U CN 201320518424 U CN201320518424 U CN 201320518424U CN 203441577 U CN203441577 U CN 203441577U
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- Prior art keywords
- exhaust manifold
- gas exhaust
- welding
- linkage structure
- suction tude
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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses a tight coupling type exhaust manifold of a novel welding type. The tight coupling type exhaust manifold can reduce emission pollutants of an engine and improve the emission effect, and breaks through the original single welding structure, the mixing welding structure of an edge covering connection structure formed by punching metal plates and a folded edge lap joint structure is adopted, and therefore the welding manufacturability and the welding strength can be improved. According to the structure, the position of a three-way catalytic converter is arranged in advance, and the three-way catalytic converter is directly connected with the engine exhaust manifold through a flange plate and a bolt, so that a tight coupling type integrated structure is formed. An oxygen sensor is installed on the junction position of exhaust manifolds of all cylinders. According to the tight coupling type exhaust manifold, the catalytic converter can reach the initiation temperature early, the emission pollutants of the engine can be reduced, and the emission effect can be improved. According to the welding structure, the dimensional stability of a cavity can be guaranteed, the welding strength can be improved, and the smoothness of exhaust is improved.
Description
Technical field
The utility model belongs to petrol engine technical field, particularly a kind of close coupled type gas exhaust manifold that has adopted new Joining Structure.
Background technique
As everyone knows, gas exhaust manifold is the significant components of motor car engine, is connected with engine cylinder, the exhaust of each cylinder is put together and imports exhaust manifold, pipeline that band is disagreed.The gas exhaust manifold of close coupled type, is three-element catalytic to be arranged on to the exit position of gas exhaust manifold, makes catalyzer Fast light-off, gives full play to the function of catalyzer, reduces motor and discharges pollutants, and improves emission effect.The structure of gas exhaust manifold and processing technology are guarantee the smoothness of gas exhaust manifold exhaust and improve one of important means of gas exhaust manifold intensity, traditional gas exhaust manifold welding manner generally adopts the single mode of clampshell to overlap upper casing and the lower casing of gas exhaust manifold, this mode easily causes the location lap position of gas exhaust manifold upper and lower shell inaccurate, cause gas leakage, affect smoothness and the intensity of exhaust, thereby affected emission effect.
Summary of the invention
The purpose of this utility model is to provide the close coupled type gas exhaust manifold that encloses plug-in type in a kind of peripheral clampshell.A kind of motor that can reduce discharges pollutants, and improves the close coupled type gas exhaust manifold of the Novel welding mode of emission effect.
The purpose of this utility model is achieved by the following technical solution: it includes gas exhaust manifold upper casing, gas exhaust manifold lower casing, ternary catalyzing unit, catalyst converter shell, front lambda sensor, inlet flange, outlet(discharge) flange, is characterized in that: on inlet flange, be connected with at least four by gas exhaust manifold upper casing and gas exhaust manifold lower casing suction tude that form and that be set up in parallel, wherein, the suction tude of intermediate portion is bound edge linkage structure, and the suction tude at two ends is flanging overlap joint linkage structure; Joint in bound edge linkage structure and flanging overlap joint linkage structure adopts hardfacing alloy layer.
Bound edge linkage structure as above is: be used to form the upper occlusal surface of gas exhaust manifold upper casing edge of suction tude and the overlapped setting of lower occlusal surface of the gas exhaust manifold lower casing edge of setting corresponding to it.
Described flanging overlap joint linkage structure is: be used to form the mutual doubling setting of lower faying surface of position, folding part outside the upper faying surface of position, folding part and the gas exhaust manifold lower casing edge of setting corresponding to it outside the gas exhaust manifold upper casing edge of suction tude.
Model utility makes the position polarization of upper and lower two shells of gas exhaust manifold accurate by enclosing the hybrid welding process of plug-in type (that is: above-mentioned bound edge linkage structure and flanging overlap joint linkage structure) in peripheral clampshell, guarantee the stable of cavity dimension, the impact of having avoided gas leakage to cause, strengthen weld strength, improve the smoothness of exhaust, thereby improved emission effect.
This close coupled type gas exhaust manifold has been broken original single welded structure, but has adopted the mixing welded structure of folded-edge in the outer shell of metal plate punching, both can improve welding procedure, can strengthen weld strength again.It arranges the position of ternary catalyzing unit in advance in structure, directly by flange plate, is connected with bolt with enmgine exhaust, forms close coupled type integral structure.Lambda sensor is arranged on the position of the gas exhaust manifold concourse of each cylinder.This close coupled type exhaust manifold assembly can make catalyst converter more early reach initiation temperature, reduce motor and discharge pollutants, improve the effect of discharge.
Through overtesting, the utility model welded structure both can guarantee the stable of cavity dimension, can strengthen weld strength again, had improved the smoothness of exhaust.
Accompanying drawing explanation
Fig. 1 is stereochemical structure simplified schematic diagram of the present utility model;
Fig. 2 is another kind of stereochemical structure simplified schematic diagram of the present utility model;
Fig. 3 be in Fig. 2 A-A to sectional view;
Fig. 4 be in Fig. 2 B-B to sectional view.
The symbol description of accompanying drawing major component
1 is gas exhaust manifold upper casing, and 2 is gas exhaust manifold lower casing, and 3 is ternary catalyzing unit, and 4 is catalyst converter shell, and 5 is front lambda sensor, 6 is inlet flange, and 7 is outlet(discharge) flange, and 8 is clamping bolt, upper occlusal surface 11, lower occlusal surface 10, hardfacing alloy layer 9, upper faying surface 13, lower faying surface 12.
Below in conjunction with accompanying drawing, by example, the utility model is described in further detail; but following example is only the utility model example wherein; do not represent the right protection scope that the utility model limits, rights protection scope of the present utility model is as the criterion with claims.
Embodiment
example 1
As Figure 1-4,1 in figure is gas exhaust manifold upper casing, and 2 is gas exhaust manifold lower casing, and 3 is ternary catalyzing unit, and 4 is catalyst converter shell, and 5 is front lambda sensor, and 6 is inlet flange, and 7 is outlet(discharge) flange.On inlet flange 6, be connected with the suction tude that four (gas exhaust manifold of take with four suction tude is example) is that form by gas exhaust manifold upper casing 1 and gas exhaust manifold lower casing 2 and be set up in parallel, wherein, two suction tude of intermediate portion are bound edge linkage structure, this bound edge linkage structure is: be used to form the upper occlusal surface 11 of gas exhaust manifold upper casing edge of suction tude and the overlapped setting of lower occlusal surface 10 of the gas exhaust manifold lower casing edge of setting corresponding to it, adopt 9 sealing of hardfacing alloy layer in the joint of bound edge linkage structure; And the suction tude at two ends is flanging overlap joint linkage structure, this flanging overlap joint linkage structure is: be used to form the mutual doubling setting of lower faying surface 12 of position, folding part outside the outer upper faying surface 13 of position, folding part in gas exhaust manifold upper casing edge of suction tude and the gas exhaust manifold lower casing edge of settings corresponding to it, the joint employing hardfacing alloy layer 14 that overlaps linkage structure at flanging seals.In addition, 8 in figure is clamping bolt.
The working principle of this structure and traditional gas exhaust manifold are as good as, therefore omit.
Claims (3)
1. a close coupled type gas exhaust manifold, include gas exhaust manifold upper casing, gas exhaust manifold lower casing, ternary catalyzing unit, catalyst converter shell, front lambda sensor, inlet flange, outlet(discharge) flange, it is characterized in that: on inlet flange, be connected with at least four by gas exhaust manifold upper casing and gas exhaust manifold lower casing suction tude that form and that be set up in parallel, wherein, the suction tude of intermediate portion is bound edge linkage structure, and the suction tude at two ends is flanging overlap joint linkage structure; Joint in bound edge linkage structure and flanging overlap joint linkage structure adopts hardfacing alloy layer.
2. close coupled type gas exhaust manifold according to claim 1, is characterized in that: described bound edge linkage structure is: be used to form the upper occlusal surface of gas exhaust manifold upper casing edge of suction tude and the overlapped setting of lower occlusal surface of the gas exhaust manifold lower casing edge of setting corresponding to it.
3. close coupled type gas exhaust manifold according to claim 1, is characterized in that: described flanging overlap joint linkage structure is: be used to form the mutual doubling setting of lower faying surface of position, folding part outside the upper faying surface of position, folding part and the gas exhaust manifold lower casing edge of setting corresponding to it outside the gas exhaust manifold upper casing edge of suction tude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320518424.8U CN203441577U (en) | 2013-08-23 | 2013-08-23 | Tight coupling type exhaust manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320518424.8U CN203441577U (en) | 2013-08-23 | 2013-08-23 | Tight coupling type exhaust manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203441577U true CN203441577U (en) | 2014-02-19 |
Family
ID=50092636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320518424.8U Expired - Fee Related CN203441577U (en) | 2013-08-23 | 2013-08-23 | Tight coupling type exhaust manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203441577U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301907A (en) * | 2018-02-11 | 2018-07-20 | 哈尔滨工业大学 | A kind of waste heat recirculation type internal combustion engine cracking fuel using tail gas |
-
2013
- 2013-08-23 CN CN201320518424.8U patent/CN203441577U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301907A (en) * | 2018-02-11 | 2018-07-20 | 哈尔滨工业大学 | A kind of waste heat recirculation type internal combustion engine cracking fuel using tail gas |
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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 |
Granted publication date: 20140219 Termination date: 20200823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |