CN203669982U - Exhaust structure of exhaust manifold - Google Patents
Exhaust structure of exhaust manifold Download PDFInfo
- Publication number
- CN203669982U CN203669982U CN201320605780.3U CN201320605780U CN203669982U CN 203669982 U CN203669982 U CN 203669982U CN 201320605780 U CN201320605780 U CN 201320605780U CN 203669982 U CN203669982 U CN 203669982U
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- exhaust manifold
- mixer tube
- pressure
- tube
- mixing tube
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Abstract
The utility model relates to a structure of an exhaust manifold, in particular to an exhaust structure of the exhaust manifold. The exhaust structure of the exhaust manifold is provided with a frequency mixing tube and a catalyst, wherein the frequency mixing tube is communicated with the exhaust manifold, and the catalyst is connected with the frequency mixing tube. The exhaust structure of the exhaust manifold further comprises a pressure stabilizer, wherein the pressure stabilizer is connected with the frequency mixing tube and provided with a pressure stabilizing cavity which is communicated with the frequency mixing tube. Due to the fact that the pressure stabilizer is additionally arranged, the pressure of tail gas in the frequency mixing tube is stored; when the pressure in the frequency mixing tube is changed, the effect that the tail gas is evenly discharged is achieved in the mode that the pressure of the frequency mixing tube is balanced through supplement of the pressure in the frequency mixing tube.
Description
Technical field
The utility model relates to a kind of structure of gas exhaust manifold, relates in particular to a kind of exhaust structure of gas exhaust manifold.
Background technique
Along with continuing to increase of automobile pollution, automobile exhaust pollution becomes one of principal element of pollution of atmosphere gradually, for this reason, more and more stricter to the requirement of motor vehicle exhaust emission.In existing gas exhaust manifold mechanism, comprise the mixer tube being connected with gas exhaust manifold and the catalyst converter being connected with mixer tube, the gas that gas exhaust manifold is discharged, after mixer tube place is mixed, is discharged through catalyst converter more.While work under different operating modes due to motor, the gas pressure entering in mixer tube is unsettled, and therefore, the tail gas of discharging via catalyst converter is even not, and effect is poor; In addition, in the waste gas in mixer tube, oxygen concentration is also constantly to change, and therefore, has caused the air fuel ratio fluctuation in catalyst converter, and catalytic effect is not ideal enough.In prior art, adopted multiple project organization for gas exhaust manifold, as close coupling form, electric heating catalyzer or two catalyst converters etc., or it is larger to take up room, or cost is higher, and its General is all not ideal enough.
Model utility content
For solving the deficiencies in the prior art, the utility model provides a kind of exhaust structure of the gas exhaust manifold that improves emission pressure stability, and it is simple in structure, effectively raises the emission effect of tail gas.
For achieving the above object, the exhaust structure of gas exhaust manifold of the present utility model, has the mixer tube being communicated with gas exhaust manifold, and the catalyst converter being connected with mixer tube, also comprises the voltage stabilizer being connected with mixer tube, have the pressure stabilizing cavity being communicated with mixer tube.By setting up voltage stabilizer, the tail gas pressure in mixer tube is stored, when the pressure in mixer tube changes, by the pressure in mixer tube is supplemented to the pressure with balanced mixing pipe, reach the homogenization emission effect of tail gas.
As the improvement to aforesaid way, in pressure stabilizing cavity, be filled with hydrogen-storing material.By setting up hydrogen-storing material, tail gas middle and high concentration oxygen is stored by hydrogen-storing material, and in the time that engine operating condition changes, poor according to the oxygen concentration in mixer tube and hydrogen-storing material, balance oxygen concentration, to overcome air fuel ratio fluctuation in catalyst converter, makes catalytic effect even more ideal.
As to restriction of the present utility model, described voltage stabilizer comprise have pressure stabilizing cavity main body, be communicated in the connecting tube between main body and mixer tube, the caliber of described connecting tube is less than the end face diameter of main body.By the setting of this structure, make to form hole enlargement structure between connecting tube and main body, improve diffusion effect when mixer tube inner exhaust gas enters in pressure stabilizing cavity.
As the restriction to aforesaid way, the center line of described connecting tube is vertical with the center line of mixer tube to be arranged.
In sum, adopt the technical solution of the utility model, the stability while effectively raising exhaust emissions, and improved the catalytic effect of exhaust emissions, it is simple in structure.
Accompanying drawing explanation
Below in conjunction with the drawings and the specific embodiments, the utility model is done further to describe in detail:
Fig. 1 is the utility model embodiment's overall structure schematic diagram;
Fig. 2 is the part-structure sectional view of Fig. 1;
In figure:
1, gas exhaust manifold; 2, mixer tube; 3, catalyst converter; 4, voltage stabilizer; 41, pressure stabilizing cavity; 42, main body; 43, connecting tube; 5, hydrogen-storing material.
Embodiment
The present embodiment relates to a kind of exhaust structure of gas exhaust manifold, by Fig. 1 in conjunction with shown in Fig. 2, it has the mixer tube 2 being communicated with gas exhaust manifold 1, and the catalyst converter 3 being connected with mixer tube 2, wherein, gas exhaust manifold 1 in the present embodiment is four, and each gas exhaust manifold 1 is intersected in mixer tube 2, to realize tail gas in each gas exhaust manifold 1 in the mixing at mixer tube 2 places.Through mixed tail gas, after catalyst converter 3 catalysis, discharge.
Improvements of the present utility model are also to comprise that be connected with mixer tube 2, to have the pressure stabilizing cavity 41 being communicated with mixer tube 2 voltage stabilizer 4.Voltage stabilizer 4 comprises main body 42, main body 42 is inner hollow structure, this hollow structure has formed pressure stabilizing cavity 41, main body 42 is by the vertically disposed connecting tube 43 of center line of center line and mixer tube 2, realize and being connected with mixer tube 2, can clearly be found out by Fig. 2, pressure stabilizing cavity 41 is the internal communication with mixer tube 2 by connecting tube 43.The caliber of connecting tube 43 is less than the end face diameter of main body 42.In addition, in pressure stabilizing cavity 41, be filled with hydrogen-storing material 5.Hydrogen-storing material 5 adopts existing material, for example, adopt the binary or the multicomponent composite oxide that form as main rare earth elements, alkali earth metal or transition metal take cerium oxide, and it has reversible storage and the effect of releasing oxygen.
In use, the tail gas that gas exhaust manifold 1 is discharged, with pulse shape, intermittently converge in mixer tube 2 places, when motor cylinder pulsing airflow with Fig. 2 in the direction of arrow arrive when mixer tube 2, the pressure rise at mixer tube 2 places, portion gas enters into by connecting tube 43 pressure stabilizing cavity 41 that pressure is lower, to eliminate the pulsating pressure in mixer tube 2; Pulsing airflow is by after mixer tube, before next cylinder pulse arrives, pressure stabilizing cavity 41 pressure are higher than the pressure in mixer tube 2, gas is back to mixer tube 2 by pressure stabilizing cavity 41, now, has strengthened the pressure in mixer tube 2, so constantly move in circles, reach the pressure stability effect in mixer tube 2, made the steady air current in mixer tube 2 even, improved the catalytic effect of catalyst converter to tail gas.
In as above process, in the time that in the waste gas that some operating mode of motor is discharged, oxygen content is more, the oxygen concentration in mixer tube is higher than the oxygen concentration in pressure stabilizing cavity, the oxygen of high concentration diffuses to pressure stabilizing cavity, after contacting with hydrogen-storing material, stored by hydrogen-storing material, realize the oxygen storage in waste gas; Change and while causing oxygen concentration in mixer tube to reduce at engine operating condition, hydrogen-storing material releasing oxygen in pressure stabilizing cavity enters into mixer tube, oxygen concentration in mixer tube is improved, realize the adjusting to oxygen content of waste gas in mixer tube, avoid as much as possible the air fuel ratio fluctuation of catalyst converter, make catalytic effect even more ideal.
Claims (4)
1. an exhaust structure for gas exhaust manifold, has the mixer tube being communicated with gas exhaust manifold, and the catalyst converter being connected with mixer tube, it is characterized in that: also comprise the voltage stabilizer being connected with mixer tube, have the pressure stabilizing cavity being communicated with mixer tube.
2. the exhaust structure of gas exhaust manifold according to claim 1, is characterized in that: in pressure stabilizing cavity, be filled with hydrogen-storing material.
3. the exhaust structure of gas exhaust manifold according to claim 1 and 2, is characterized in that: described voltage stabilizer comprise have pressure stabilizing cavity main body, be communicated in the connecting tube between main body and mixer tube, the caliber of described connecting tube is less than the end face diameter of main body.
4. the exhaust structure of gas exhaust manifold according to claim 3, is characterized in that: the center line of described connecting tube is vertical with the center line of mixer tube to be arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320605780.3U CN203669982U (en) | 2013-09-29 | 2013-09-29 | Exhaust structure of exhaust manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320605780.3U CN203669982U (en) | 2013-09-29 | 2013-09-29 | Exhaust structure of exhaust manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203669982U true CN203669982U (en) | 2014-06-25 |
Family
ID=50966291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320605780.3U Expired - Fee Related CN203669982U (en) | 2013-09-29 | 2013-09-29 | Exhaust structure of exhaust manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203669982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894717A (en) * | 2020-06-28 | 2020-11-06 | 东南大学 | Exhaust mechanism of CBR600 in-line four-cylinder engine suitable for FSC (diesel fuel cycle) events |
-
2013
- 2013-09-29 CN CN201320605780.3U patent/CN203669982U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894717A (en) * | 2020-06-28 | 2020-11-06 | 东南大学 | Exhaust mechanism of CBR600 in-line four-cylinder engine suitable for FSC (diesel fuel cycle) events |
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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: 20140625 Termination date: 20210929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |