CN201635811U - Exhaust manifold for engine - Google Patents
Exhaust manifold for engine Download PDFInfo
- Publication number
- CN201635811U CN201635811U CN2010201208466U CN201020120846U CN201635811U CN 201635811 U CN201635811 U CN 201635811U CN 2010201208466 U CN2010201208466 U CN 2010201208466U CN 201020120846 U CN201020120846 U CN 201020120846U CN 201635811 U CN201635811 U CN 201635811U
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- Prior art keywords
- cylinder inlet
- inlet duct
- exhaust
- inlet pipe
- cylinder
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- 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 for an engine, which comprises a first cylinder inlet pipe, a second cylinder inlet pipe, a third cylinder inlet pipe and a fourth cylinder inlet pipe. The exhaust manifold for an engine is characterized by also comprising an exhaust outlet pipe and a flange, wherein one end of the exhaust outlet pipe is fixedly communicated or integrated with one ends of the first cylinder inlet pipe, the second cylinder inlet pipe, the third cylinder inlet pipe and the fourth cylinder inlet pipe; the other end of the exhaust outlet pipe is fixedly connected or integrated with the flange; and a front oxygen sensor installation hole can be also arranged on the exhaust outlet pipe. By adopting the utility model, an exhaust outlet way of the exhaust manifold is changed from double holes into single holes, thereby realizing favorable combination with a front catalyst, improving the catalytic efficiency and reducing the exhaust emission of an automobile engine.
Description
Technical field
The utility model belongs to the exhaust manifold device of motor, relates to a kind of enmgine exhaust, is the improvement of prior art.Be specially adapted to cylinder bore and be 86mm (can be 85～87mm) or 91mm (can be 90～92mm), piston stroke is that 86mm (can be 85～87mm), the inlet and outlet manifold is in the motor same side, camshaft is side-mounted, 4 cylinder gasoline engines of the automobile of 2 valves of every cylinder, for example 491/4Y, 486/3Y Engine Series adopt.
Background technique
Along with national legislation to improving constantly that the vehicular discharge limit value requires, reduce the vital task that the harmful exhaust emissions amount of motor has become the motor industry.At present, national legislation has clear and definite emission limit requirement at the content of hydrocarbon, carbon monoxide, oxynitrides in the vehicle exhaust.For satisfying the emission request of national increasingly stringent, available engine is carried out technological improvement have been become inevitable.The 491/4Y that existing market recoverable amount is bigger, the requirement of the incompatible national state IV Abgasgesetz limit value of 486/3Y Engine Series discharging, need it is carried out the necessary technology transformation, improvement to vent systems is one of key technology measure, the vent systems improvement project is mainly and adopts the two-stage catalyst converter, and correspondence is provided with two lambda sensors.
Catalyst converter need be in certain temperature range, the ability proper functioning, for improving the catalytic efficiency of catalyst converter, need catalyst converter as far as possible near the cylinder cap exhaust outlet, so that utilize the exhaust gas heat heatable catalytic converter, improve its ignition speed, for satisfying state IV emission regulation demands, catalyst converter and preceding lambda sensor before needing to increase.For the bigger 491/4Y of existing market recoverable amount, 486/3Y Engine Series, its inlet and outlet manifold is in the motor same side, gas exhaust manifold adopts two outlet forms, this gas exhaust manifold merges back remittance (promptly being communicated with) with the first cylinder inlet duct, the 4th cylinder inlet duct and becomes an outlet separately, the second cylinder inlet duct, the 3rd cylinder inlet duct converge into another independent outlet after merging, and have just formed two outlets on gas exhaust manifold.This structure helps reducing the air leak amount between each entrance pipe of gas exhaust manifold, exhaust airstream is unobstructed, promoting engine performance, but the airflow characteristic of two outlet gas exhaust manifolds and interface shape can not realize and the coupling of preceding catalyst converter, makes the exhaust emissions of motor can not reach state IV standards.
Summary of the invention
The purpose of this utility model is intended to overcome above-mentioned deficiency of the prior art, by changing the outlet form of gas exhaust manifold, the motor gas exhaust manifold that a kind of exhaust outlet form is provided is single hole, thus realize with the good combination of preceding catalyst converter, improve catalytic efficiency, reduce motor vehicle exhaust emission.
Content of the present utility model is: a kind of motor gas exhaust manifold comprises: the first cylinder inlet duct, the second cylinder inlet duct, the 3rd cylinder inlet duct, the 4th cylinder inlet duct is characterized in that also comprising: an exhaust exit pipe and a flange; One end of exhaust exit pipe fixedly is communicated with an end of the described first cylinder inlet duct, the second cylinder inlet duct, the 3rd cylinder inlet duct, the 4th cylinder inlet duct or is one-body molded, and the other end of exhaust exit pipe is fixedlyed connected with flange or be one-body molded.
In the content of the present utility model: can also be provided with a preceding lambda sensor mounting hole on the described exhaust exit pipe.
In the content of the present utility model: an end of the described second cylinder inlet duct, the 3rd cylinder inlet duct is preferably after merging and fixedly is communicated with exhaust exit pipe or one-body molded; One end of the described first cylinder inlet duct, the 4th cylinder inlet duct is preferably and directly fixedly is communicated with an end of exhaust exit pipe or one-body molded.
Compared with prior art, the utlity model has following characteristics and beneficial effect:
(1) adopts the utility model, changed the outlet form of exhaust outlet, realized and the coupling of preceding catalyst converter that the quick ignition of catalyst converter before helping improves combustion efficiency, reduces motor vehicle exhaust emission;
(2) adopt the outlet form of the utility model exhaust outlet, help organizing tail gas airflow direction and distribution, when allowing tail gas through preceding catalyst converter, gas fully contacts with catalyzer, improves catalytic efficiency, the reduction motor vehicle exhaust emission;
(3) the utility model adopts the exhaust exit pipe adpting flange, can be easily connects lambda sensor mounting hole before being provided with, the layout and the installation of lambda sensor before being convenient to different follow-up pipeline;
(4) the utility model mainly be applicable to cylinder bore be 86mm (can be 85～87mm) or 91mm (can be 90～92mm), piston stroke is that 86mm (can be 85～87mm), the inlet and outlet manifold is in the motor same side, camshaft is side-mounted, and 4 cylinder gasoline engines of the automobile of every cylinder 2 valves adopt;
(5) the utility model has kept the advantage of prior art structure, promptly keeps each inlet duct to import the crooked radian of exhaust exit pipe, with the gas flow direction gas exhaust manifold Way out that leads, thereby reduces air leak amount between each entrance pipe, and exhaust airstream is unobstructed; Simultaneously, the gas exhaust manifold of single outlet form has been realized the effective coupling with preceding catalyst converter;
(6) simple in structure, produce easy to install, practical.
Description of drawings
Fig. 1 is that the utility model embodiment faces structural representation;
Fig. 2 is the utility model embodiment backsight structural representation.
Among the figure: lambda sensor mounting hole before the 1-first cylinder inlet duct, the 2-second cylinder inlet duct, 3-the 3rd cylinder inlet duct, 4-the 4th cylinder inlet duct, 5-exhaust exit pipe, 6-flange, the 7-.
Embodiment
The utility model is described in further detail by embodiment below in conjunction with accompanying drawing.
Embodiment 1: referring to each accompanying drawing.
A kind of motor gas exhaust manifold, comprise: the first cylinder inlet duct 1, the second cylinder inlet duct 2, the 3rd cylinder inlet duct 3, the 4th cylinder inlet duct 4, also comprise: exhaust exit pipe 5 and flange 6 (be used to be connected to satisfy state IV or higher standard Abgasgesetz, the preceding catalyst converter of necessary employing or follow-up gas exhaust piping); One end of exhaust exit pipe 5 fixedly is communicated with an end of the described first cylinder inlet duct 1, the second cylinder inlet duct 2, the 3rd cylinder inlet duct 3, the 4th cylinder inlet duct 4 or is one-body molded, and the other end of exhaust exit pipe 5 is fixedlyed connected with flange 6;
Also be provided with a preceding lambda sensor mounting hole 7 on the described exhaust exit pipe 5, be used to be installed as and satisfy state IV or higher standard Abgasgesetz, the preceding lambda sensor of necessary employing.
During assembling: the other end of the first cylinder inlet duct 1, the second cylinder inlet duct 2, the 3rd cylinder inlet duct 3 and the 4th cylinder inlet duct 4 fixedly is communicated with 4 air outlet flues of cylinder head respectively, flange 6 fixedly is communicated with preceding catalyst converter, lambda sensor before installing on the preceding lambda sensor mounting hole 7; During engine operation, tail gas is during through preceding catalyst converter, and gas fully contacts with catalyzer, improves catalytic efficiency, thus the discharging of harmful substance in the reduction vehicle exhaust.
Embodiment 2: referring to each accompanying drawing.
A kind of motor gas exhaust manifold, the second cylinder inlet duct 2 wherein, an end of the 3rd cylinder inlet duct 3 fixedly are communicated with exhaust exit pipe 5 after merging or are one-body molded; One end of the described first cylinder inlet duct 1, the 4th cylinder inlet duct 4 directly fixedly is communicated with an end of exhaust exit pipe 5 or is one-body molded;
Other is with embodiment 1, slightly.
The utility model is not limited to the foregoing description, and the utility model content is described all can implement and have described good result.
Claims (3)
1. motor gas exhaust manifold, comprising: the first cylinder inlet duct, the second cylinder inlet duct, the 3rd cylinder inlet duct, the 4th cylinder inlet duct is characterized in that also comprising: an exhaust exit pipe (5) and a flange (6); One end of exhaust exit pipe (5) fixedly is communicated with an end of the described first cylinder inlet duct (1), the second cylinder inlet duct (2), the 3rd cylinder inlet duct (3), the 4th cylinder inlet duct (4) or is one-body molded, and the other end of exhaust exit pipe (5) is fixedlyed connected with flange (6) or be one-body molded.
2. by the described motor gas exhaust manifold of claim 1, it is characterized in that: also be provided with a preceding lambda sensor mounting hole (7) on the described exhaust exit pipe (5).
3. by claim 1 or 2 described motor gas exhaust manifolds, it is characterized in that: an end of the described second cylinder inlet duct (2), the 3rd cylinder inlet duct (3) fixedly is communicated with exhaust exit pipe (5) after merging or is one-body molded; One end of the described first cylinder inlet duct (1), the 4th cylinder inlet duct (4) directly fixedly is communicated with an end of exhaust exit pipe (5) or is one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201208466U CN201635811U (en) | 2010-02-26 | 2010-02-26 | Exhaust manifold for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201208466U CN201635811U (en) | 2010-02-26 | 2010-02-26 | Exhaust manifold for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201635811U true CN201635811U (en) | 2010-11-17 |
Family
ID=43080300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201208466U Expired - Lifetime CN201635811U (en) | 2010-02-26 | 2010-02-26 | Exhaust manifold for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201635811U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230415A (en) * | 2011-06-13 | 2011-11-02 | 奇瑞汽车股份有限公司 | Exhaust manifold installation structure and method for assembling and disassembling same |
| CN104533586A (en) * | 2014-12-25 | 2015-04-22 | 江铃汽车股份有限公司 | Exhaust manifold structure of high exhaust temperature gasoline engine |
-
2010
- 2010-02-26 CN CN2010201208466U patent/CN201635811U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230415A (en) * | 2011-06-13 | 2011-11-02 | 奇瑞汽车股份有限公司 | Exhaust manifold installation structure and method for assembling and disassembling same |
| CN104533586A (en) * | 2014-12-25 | 2015-04-22 | 江铃汽车股份有限公司 | Exhaust manifold structure of high exhaust temperature gasoline engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |