CN110030073A - A kind of exhaust system of gasoline engine - Google Patents
A kind of exhaust system of gasoline engine Download PDFInfo
- Publication number
- CN110030073A CN110030073A CN201910368742.2A CN201910368742A CN110030073A CN 110030073 A CN110030073 A CN 110030073A CN 201910368742 A CN201910368742 A CN 201910368742A CN 110030073 A CN110030073 A CN 110030073A
- Authority
- CN
- China
- Prior art keywords
- exhaust
- exhaust manifold
- valve
- row
- manifold
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The present invention provides a kind of exhaust system of gasoline engine, including exhaust gathering tube and exhaust duct, the exhaust duct includes first exhaust manifold, second exhaust manifold and third exhaust manifold, the end of summarizing of the first exhaust manifold is exhaust manifold outlet, the disagreement end of the first exhaust manifold becomes a mandarin for first row air flue and waits mouth, the disagreement end of the second exhaust manifold becomes a mandarin for second row air flue and waits mouth, the disagreement end of the third exhaust manifold becomes a mandarin for third exhaust duct and waits mouth, the second exhaust manifold, the end of summarizing of third exhaust manifold is connect with the exhaust gathering tube respectively, the exhaust gathering tube summarizes with the exhaust manifold outlet to be connect, the first row air flue, which becomes a mandarin, waits mouth, first exhaust manifold, exhaust manifold outlet is sequentially communicated to form first exhaust passage.The beneficial effects of the present invention are: can balanced three cylinders extraction flow, reduce exhaust resistance, increase extraction flow coefficient.
Description
Technical field
The present invention relates to exhaust manifold more particularly to a kind of exhaust system of gasoline engine.
Background technique
Engine expansion stroke complete after, need as early as possible by inside cylinder gas be discharged, so as to allow live gas into
Enter, into next working cycles.The trafficability performance of air flue is generally evaluated with discharge coefficient, and discharge coefficient is bigger, represents circulation
Performance is better, the size relation of exhaust duct discharge coefficient to engine whether smooth in exhaust
Therefore, how to design a kind of exhaust system that discharge coefficient is big, to reduce exhaust back pressure, be those skilled in the art institute urgently
Technical problem to be solved.
Summary of the invention
In order to solve the problems in the prior art, the present invention provides a kind of exhaust system of gasoline engine.
The present invention provides a kind of exhaust system of gasoline engine, including exhaust gathering tube and exhaust duct, the exhaust ducts
Including first exhaust manifold, second exhaust manifold and third exhaust manifold, the first exhaust manifold summarizes end for exhaust discrimination
Pipe outlet, the disagreement end of the first exhaust manifold becomes a mandarin for first row air flue waits mouth, the disagreement end of the second exhaust manifold
It becomes a mandarin for second row air flue and waits mouth, the disagreement end of the third exhaust manifold becomes a mandarin for third exhaust duct waits mouth, the second row
Gas manifold, third exhaust manifold end of summarizing connect respectively with the exhaust gathering tube, the exhaust gathering tube and the exhaust
Manifold outlet summarizes connection, and the first row air flue, which becomes a mandarin, waits mouth, first exhaust manifold, exhaust manifold outlet and be sequentially communicated to be formed
First exhaust passage, the second row air flue, which becomes a mandarin, waits mouth, second exhaust manifold, exhaust gathering tube, exhaust manifold outlet successively
Connection forms second exhaust channel, and the third exhaust duct, which becomes a mandarin, waits mouth, third exhaust manifold, exhaust gathering tube, exhaust manifold
Outlet is sequentially communicated to form third exhaust passage.
As a further improvement of the present invention, the central axis of the first exhaust manifold and the exhaust manifold outlet
Centerline axis parallel or coincidence.
As a further improvement of the present invention, the exhaust system of gasoline engine further includes combustion chamber, the exhaust discrimination
The central axis of pipe outlet and the central axis of the combustion chamber are perpendicular.
As a further improvement of the present invention, the first exhaust manifold is equipped with first row valve, the second exhaust
Manifold is equipped with second row valve, and the third exhaust manifold is equipped with third exhaust valve, the first row valve, second exhaust
The angle of the central axis of door, the central axis of third exhaust valve and the combustion chamber is acute angle.
As a further improvement of the present invention, the central axis of the first row valve, second row valve, third exhaust valve
Angle with the central axis of the combustion chamber is between 20 ° to 30 °.
As a further improvement of the present invention, the central axis of the first row valve, second row valve, third exhaust valve
Angle with the central axis of the combustion chamber is 25 °.
As a further improvement of the present invention, the first exhaust manifold is equipped with first row valve guide bushing boss, described
First row valve is arranged on the first row valve guide bushing boss, and the second exhaust manifold is equipped with second row valve guide bushing
Boss, the second row valve are arranged on the second row valve guide bushing boss, and the third exhaust manifold is equipped with third
Exhaust valve guide boss, the third exhaust valve are arranged on the third exhaust valve guide boss.
As a further improvement of the present invention, the first exhaust manifold is close to the position of the first row valve guide bushing boss
The first two-stage groove is installed, the second exhaust manifold is equipped with second liang close to the position of the second row valve guide bushing boss
Grade groove, the third exhaust manifold are equipped with third two-stage groove close to the position of the third exhaust valve guide boss.
As a further improvement of the present invention, in the central axis and the exhaust manifold outlet of the exhaust gathering tube
Heart axis perpendicular.
As a further improvement of the present invention, the disagreement end of the first exhaust manifold is equipped with two branch pipes, and described the
The disagreement end of two exhaust manifolds is equipped with two branch pipes, and the disagreement end of the third exhaust manifold is equipped with two branch pipes.
The beneficial effects of the present invention are: through the above scheme, can balanced three cylinders extraction flow, reduce exhaust resistance
Power increases extraction flow coefficient.
Detailed description of the invention
Fig. 1 is a kind of top view of exhaust system of gasoline engine of the present invention.
Fig. 2 is a kind of side view of exhaust system of gasoline engine of the present invention.
Specific embodiment
The invention will be further described for explanation and specific embodiment with reference to the accompanying drawing.
As shown in Figure 1 to Figure 2, a kind of exhaust system of gasoline engine, including exhaust gathering tube 5 and exhaust duct, the row
Air flue includes first exhaust manifold 1, second exhaust manifold 2 and third exhaust manifold 3, and the first exhaust manifold 1 summarizes end
For exhaust manifold outlet 4, the disagreement end of the first exhaust manifold 1 becomes a mandarin for first row air flue waits mouth 11, the second exhaust
The disagreement end of manifold 2 becomes a mandarin for second row air flue and waits mouth 21, and the disagreement end of the third exhaust manifold 3 is that third exhaust duct becomes a mandarin
Wait mouth 31, the second exhaust manifold 2, third exhaust manifold 3 summarize end connect respectively with the exhaust gathering tube 5, it is described
Exhaust gathering tube 5 summarizes with the exhaust manifold outlet 4 to be connect, and the first row air flue, which becomes a mandarin, waits mouth 11, first exhaust manifold
1, exhaust manifold outlet 4 is sequentially communicated to form first exhaust passage, and the second row air flue, which becomes a mandarin, waits mouth 21, second exhaust manifold
2, gathering tube 5, exhaust manifold outlet 4 is vented to be sequentially communicated to form second exhaust channel, the third exhaust duct become a mandarin wait mouth 31,
Third exhaust manifold 3, exhaust gathering tube 5, exhaust manifold outlet 4 are sequentially communicated to form third exhaust passage.
As shown in Figure 1 to Figure 2, the central axis of the central axis of the first exhaust manifold 1 and the exhaust manifold outlet 4
Line is parallel or is overlapped.
As shown in Figure 1 to Figure 2, the exhaust system of gasoline engine further includes combustion chamber 6, the exhaust manifold outlet 4
Central axis and the combustion chamber 6 central axis it is perpendicular.
As shown in Figure 1 to Figure 2, the first exhaust manifold 1 is equipped with first row valve 13, the second exhaust manifold 2
It is equipped with second row valve 23, the third exhaust manifold 3 is equipped with third exhaust valve 33, the first row valve 13, second
The angle of the central axis of exhaust valve 23, the central axis of third exhaust valve 33 and the combustion chamber 6 is acute angle.
As shown in Figure 1 to Figure 2, the first row valve 13, second row valve 23, third exhaust valve 33 central axis with
The angle of the central axis of the combustion chamber 6 is between 20 ° to 30 °.
As shown in Figure 1 to Figure 2, the first row valve 13, second row valve 23, third exhaust valve 33 central axis with
The angle of the central axis of the combustion chamber 6 is preferably 25 °.
As shown in Figure 1 to Figure 2, the first exhaust manifold 1 is equipped with first row valve guide bushing boss 12, the first row
Valve 13 is arranged on the first row valve guide bushing boss 12, and the second exhaust manifold 2 is equipped with second row valve guide bushing
Boss 22, the second row valve 23 are arranged on the second row valve guide bushing boss 22, set on the third exhaust manifold 3
There is third exhaust valve guide boss 32, the third exhaust valve 33 is arranged on the third exhaust valve guide boss 32.
As shown in Figure 1 to Figure 2, the first exhaust manifold 1 is set close to the position of the first row valve guide bushing boss 12
There is the first two-stage groove, the second exhaust manifold 2 is equipped with second liang close to the position of the second row valve guide bushing boss 22
Grade groove, the third exhaust manifold 3 are equipped with third two-stage groove close to the position of the third exhaust valve guide boss 32.
As shown in Figure 1 to Figure 2, the central axis of the central axis of the exhaust gathering tube 5 and the exhaust manifold outlet 4
It is perpendicular.
As shown in Figure 1 to Figure 2, the disagreement end of the first exhaust manifold 1 is equipped with two branch pipes, the second exhaust discrimination
The disagreement end of pipe 2 is equipped with two branch pipes, and the disagreement end of the third exhaust manifold 3 is equipped with two branch pipes.
A kind of exhaust system of gasoline engine provided by the invention can be adapted for direct injection three-cylinder gasoline engine engine,
The exhaust airstream of combustion chamber 6 is discharged through first exhaust passage, second exhaust channel, third exhaust passage respectively, the gasoline engine
Machine exhaust system is designed according to the intake and exhaust feature of three cylinders, can make three cylinder gasoline engine smooth gas discharges, reduces row
Atmidometer increases discharge coefficient.
A kind of exhaust system of gasoline engine provided by the invention, can be by increasing or reducing second exhaust manifold 2
It is suitable for the petrol engine of different cylinder numbers with the quantity of third exhaust manifold 3.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (10)
1. a kind of exhaust system of gasoline engine, it is characterised in that: include including exhaust gathering tube and exhaust duct, the exhaust duct
The end of summarizing of first exhaust manifold, second exhaust manifold and third exhaust manifold, the first exhaust manifold goes out for exhaust manifold
Mouthful, the disagreement end of the first exhaust manifold is that first row air flue becomes a mandarin and waits mouth, and the disagreement end of the second exhaust manifold is the
Two exhaust ducts, which become a mandarin, waits mouth, and the disagreement end of the third exhaust manifold becomes a mandarin for third exhaust duct waits mouth, the second exhaust discrimination
It manages, the end of summarizing of third exhaust manifold is connect with the exhaust gathering tube respectively, the exhaust gathering tube and the exhaust manifold
Outlet summarizes connection, and the first row air flue, which becomes a mandarin, waits mouth, first exhaust manifold, exhaust manifold outlet and be sequentially communicated to form first
Exhaust passage, the second row air flue becomes a mandarin and waits mouth, second exhaust manifold, exhaust gathering tube, exhaust manifold outlet are sequentially communicated
Second exhaust channel is formed, the third exhaust duct, which becomes a mandarin, waits mouth, third exhaust manifold, exhaust gathering tube, exhaust manifold outlet
It is sequentially communicated to form third exhaust passage.
2. exhaust system of gasoline engine according to claim 1, it is characterised in that: the center of the first exhaust manifold
Axis and the centerline axis parallel of the exhaust manifold outlet are overlapped.
3. exhaust system of gasoline engine according to claim 1, it is characterised in that: the exhaust system of gasoline engine
It further include combustion chamber, the central axis of the exhaust manifold outlet and the central axis of the combustion chamber are perpendicular.
4. exhaust system of gasoline engine according to claim 3, it is characterised in that: the first exhaust manifold is equipped with
First row valve, the second exhaust manifold are equipped with second row valve, and the third exhaust manifold is equipped with third exhaust valve,
The first row valve, second row valve, third exhaust valve the angle of central axis and the central axis of the combustion chamber be
Acute angle.
5. exhaust system of gasoline engine according to claim 4, it is characterised in that: the first row valve, second row
The angle of the central axis of valve, the central axis of third exhaust valve and the combustion chamber is between 20 ° to 30 °.
6. exhaust system of gasoline engine according to claim 5, it is characterised in that: the first row valve, second row
The angle of the central axis of valve, the central axis of third exhaust valve and the combustion chamber is 25 °.
7. exhaust system of gasoline engine according to claim 4, it is characterised in that: the first exhaust manifold is equipped with
First row valve guide bushing boss, the first row valve are arranged on the first row valve guide bushing boss, the second exhaust
Manifold is equipped with second row valve guide bushing boss, and the second row valve is arranged on the second row valve guide bushing boss, institute
Third exhaust manifold is stated equipped with third exhaust valve guide boss, the third exhaust valve is arranged in the third exhaust valve guide
On boss.
8. exhaust system of gasoline engine according to claim 7, it is characterised in that: the first exhaust manifold is close to institute
The position for stating first row valve guide bushing boss is equipped with the first two-stage groove, and the second exhaust manifold is close to the second row valve
The position of conduit boss is equipped with the second two-stage groove, and the third exhaust manifold is close to the position of the third exhaust valve guide boss
Third two-stage groove is installed.
9. exhaust system of gasoline engine according to claim 1, it is characterised in that: the central axis of the exhaust gathering tube
The central axis of line and the exhaust manifold outlet is perpendicular.
10. exhaust system of gasoline engine according to claim 1, it is characterised in that: point of the first exhaust manifold
Discrimination end is equipped with two branch pipes, and the disagreement end of the second exhaust manifold is equipped with two branch pipes, the third exhaust manifold
Disagreement end is equipped with two branch pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910368742.2A CN110030073A (en) | 2019-05-05 | 2019-05-05 | A kind of exhaust system of gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910368742.2A CN110030073A (en) | 2019-05-05 | 2019-05-05 | A kind of exhaust system of gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110030073A true CN110030073A (en) | 2019-07-19 |
Family
ID=67241299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910368742.2A Pending CN110030073A (en) | 2019-05-05 | 2019-05-05 | A kind of exhaust system of gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110030073A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217603A (en) * | 2022-03-14 | 2022-10-21 | 长城汽车股份有限公司 | Integrated exhaust manifold, engine and vehicle |
| CN115234350A (en) * | 2022-04-06 | 2022-10-25 | 长城汽车股份有限公司 | Engine exhaust system and vehicle |
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| CN207847749U (en) * | 2018-01-10 | 2018-09-11 | 东风汽车集团有限公司 | Integrated exhaust manifolds structure |
| CN209959333U (en) * | 2019-05-05 | 2020-01-17 | 柳州上汽汽车变速器有限公司柳东分公司 | Exhaust system of gasoline engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217603A (en) * | 2022-03-14 | 2022-10-21 | 长城汽车股份有限公司 | Integrated exhaust manifold, engine and vehicle |
| CN115234350A (en) * | 2022-04-06 | 2022-10-25 | 长城汽车股份有限公司 | Engine exhaust system and vehicle |
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Effective date of registration: 20210914 Address after: 545007 No.1, Che Yuan Heng Er Road, Yufeng District, Liuzhou City, Guangxi Zhuang Autonomous Region Applicant after: Liuzhou Saike Technology Development Co.,Ltd. Address before: 545007 office building 208, No.2, Liudong standard workshop, No.2, Shuiwan Road, Liudong New District, Liuzhou City, Guangxi Zhuang Autonomous Region Applicant before: LIUZHOU SAIC AUTO TRANSMISSION Co.,Ltd. LIUDONG BRANCH |