CN209875274U - Exhaust manifold, engine supercharging structure and automobile - Google Patents
Exhaust manifold, engine supercharging structure and automobile Download PDFInfo
- Publication number
- CN209875274U CN209875274U CN201920547730.1U CN201920547730U CN209875274U CN 209875274 U CN209875274 U CN 209875274U CN 201920547730 U CN201920547730 U CN 201920547730U CN 209875274 U CN209875274 U CN 209875274U
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- manifold
- port
- exhaust manifold
- connecting section
- piece
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- 238000007789 sealing Methods 0.000 claims abstract description 31
- 239000007789 gas Substances 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000005452 bending Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model relates to the technical field of automobiles, a exhaust manifold, engine pressure boost structure and car is disclosed, exhaust manifold includes first manifold spare (10), second manifold spare (20) and sealing washer (30), and one of first manifold spare and second manifold spare is used for connecting the engine cylinder lid, and another is used for connecting the booster, second manifold spare (20) cup joint on first manifold spare (10) to form the annular space that has backstop portion in the department of cup jointing, sealing washer (30) set up in the annular space with seal first manifold spare (10) with cup joint clearance between second manifold spare (20). The application provides an exhaust manifold is difficult for taking place gas leakage, can also avoid exhaust manifold to break off because high temperature inflation simultaneously.
Description
Technical Field
The utility model relates to the field of automotive technology, specifically relate to an exhaust manifold, engine pressure boost structure and car.
Background
An exhaust manifold is an important part for connecting a cylinder head of an engine and a supercharger, and high-temperature gas after combustion in each cylinder of the engine flows to a scroll end of the supercharger through the exhaust manifold. In the process, the exhaust manifold functions to support the supercharger, contain and deliver high temperature gases. In some vehicle applications, because of the limited space available for the frame layout, a supercharger is required to be placed at the rear end of the engine, which requires a high degree of reliability in the exhaust manifold. If the exhaust manifold breaks, high-temperature gas leaks, and a safety risk such as fire may occur. The existing split type exhaust manifold has small probability of breakage, but the split type structure is easy to leak gas, so that high-temperature gas leakage can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an exhaust manifold in order to overcome the problem that exhaust manifold easily leaks gas that prior art exists.
In order to achieve the above object, an aspect of the present invention provides an exhaust manifold including a first manifold member, a second manifold member and a seal ring, one of the first manifold member and the second manifold member is used for connecting an engine cylinder head, the other is used for connecting a supercharger, the second manifold member is sleeved on the first manifold member to form an annular space having a stopper portion at a sleeved portion, and the seal ring is disposed in the annular space to seal a sleeved gap between the first manifold member and the second manifold member.
Through above-mentioned technical scheme, utilize the exhaust manifold that this application provided, exhaust manifold has adopted the split type design of first manifold spare and second manifold spare, make certain deformation allowance has when the thermal expansion, thereby effectively avoid exhaust manifold because thermal expansion takes place the fracture, this application has set up the sealing washer at the position that first manifold spare and second manifold spare are connected simultaneously, because exhaust manifold inside atmospheric pressure is higher, the inside gas of exhaust manifold can extrude the backstop portion with the sealing washer, thereby make the sealing washer can seal the cup joint clearance between first manifold spare and the second manifold spare, gas in avoiding exhaust manifold spills from this clearance.
Preferably, one of the ports of the first manifold member is provided with a first connecting section extending along a straight line, one of the ports of the second manifold member is provided with a second connecting section extending along a straight line, an inner wall surface of the second connecting section is sleeved on an outer wall surface of the first connecting section, an extending section is arranged at the tail end of the first connecting section, the extending section and the first connecting section are coaxially arranged, the outer diameter of the extending section is smaller than that of the first connecting section, so that the extending section, the first connecting section and the second connecting section jointly define the annular space, and the sealing ring is arranged on the extending section in a surrounding mode to be filled in the gap.
Preferably, the sealing ring is attached to an end face of the first connecting section.
Preferably, a groove extending along the whole circumference of the sealing ring is formed on the sealing ring, and an opening of the groove faces to one side of the second connecting section.
Preferably, the exhaust manifold has at least two separate flow passages formed therein for allowing gas in the engine cylinder to enter the supercharger.
Preferably, the second manifold member is used for connecting a supercharger, the first manifold member is provided with a first port and a second port for connecting an engine cylinder head, the second manifold member is provided with a third port, a fourth port, a fifth port and a sixth port for connecting an engine cylinder head, the second manifold member defines a first pipeline and a second pipeline which are separated from each other, the first pipeline and the second pipeline are both used for connecting a supercharger, the first pipeline is in fluid communication with the second connecting section so that the first pipeline is in fluid communication with the first port and the second port, the first pipeline is in fluid communication with the third port, and the second pipeline is in fluid communication with the fourth port, the fifth port and the sixth port.
Preferably, the cross section of the flow channel is elliptical.
Preferably, the sealing ring is a stainless steel piece.
The utility model discloses the second aspect provides an engine pressure boost structure, engine pressure boost structure includes engine, booster and as above exhaust manifold.
The utility model discloses the second aspect provides an automobile, the automobile includes as above engine pressure boost structure.
Drawings
FIG. 1 is a cross-sectional view of an exhaust manifold provided in accordance with a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of the junction of a first connecting segment and a second connecting segment of the exhaust manifold of FIG. 1;
fig. 3 is a cross-sectional view of the seal ring at the connection shown in fig. 2.
Description of the reference numerals
10-first manifold piece 20-second manifold piece 30-seal ring
11-first port 12-second port 13-third port
14-fourth port 15-fifth port 16-sixth port
21-first line 22-second line
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
The utility model provides an exhaust manifold, exhaust manifold includes first manifold piece 10, second manifold piece 20 and sealing washer 30, first manifold piece 10 with one of second manifold piece 20 is used for connecting the engine cylinder lid, and another is used for connecting the booster, second manifold piece 20 cup joints on the first manifold piece 10 to form the annular space that has the backstop portion in the department of cup jointing, sealing washer 30 sets up in order to seal in the annular space first manifold piece 10 with cup joint clearance between the second manifold piece 20.
Utilize the exhaust manifold that this application provided, exhaust manifold has adopted the split type design of first manifold spare 10 and second manifold spare 20, make certain deformation allowance has when the thermal expansion, thereby effectively avoid exhaust manifold because thermal expansion takes place the fracture, this application has set up the sealing washer at the position that first manifold spare and second manifold spare are connected simultaneously, because exhaust manifold inside atmospheric pressure is higher, the inside gas of exhaust manifold can be with on the sealing washer extrusion backstop portion, thereby make the sealing washer can seal the cup joint clearance between first manifold spare and the second manifold spare, gas in the exhaust manifold is avoided spilling from this clearance.
In a preferred embodiment of the present application, one of the ports of the first manifold member 10 is provided with a first connecting section extending along a straight line, one of the ports of the second manifold member 20 is provided with a second connecting section extending along a straight line, an inner wall surface of the second connecting section is sleeved on an outer wall surface of the first connecting section so as to enable the second manifold member 20 and the first manifold member 10 to be in fluid communication, wherein an end of the first connecting section is provided with an extending section 40, the extending section 40 is coaxially arranged with the first connecting section, and an outer diameter of the extending section 40 is smaller than an outer diameter of the first connecting section, so that the extending section 40, the first connecting section and the second connecting section jointly define an annular space, and the sealing ring 30 is circumferentially arranged on the extending section so as to be arranged in the annular space.
Referring to the structure shown in fig. 1 and 2, the sleeving gap between the first manifold piece and the second manifold piece is a gap generated by sleeving the inner wall surface of the second connecting section on the outer wall surface of the first connecting section, the exhaust manifold adopts the split design of the first manifold piece 10 and the second manifold piece 20, the first connecting section and the second connecting section can be deformed along the axial direction when being heated, in addition, the inner wall surface of the second connecting section is sleeved on the outer wall surface of the first connecting section to generate a certain gap, so that certain deformation allowance is provided when being heated to expand, thereby effectively avoiding the exhaust manifold from being fractured due to thermal expansion, and the sealing ring can seal the gap between the outer wall surface of the first connecting section and the inner wall surface of the second connecting section, thereby avoiding gas leakage.
In order to enable the sealing ring to effectively seal the gap between the outer wall surface of the first connecting section and the inner wall surface of the second connecting section, the sealing ring should be arranged to be tightly attached to the end surface of the first connecting section, and the high-pressure gas in the exhaust manifold can further ensure that the sealing ring is always tightly attached to the end surface of the first connecting section, in this embodiment, the end surface of the first connecting section constitutes the stopper portion of the annular space.
Wherein, the sealing ring 30 is formed with a groove extending along the whole circumference of the sealing ring, and the opening of the groove faces to one side of the second connecting section, so that the air pressure in the exhaust manifold can push the groove bottom of the groove, so that the sealing ring is attached to the end surface of the first connecting section opposite to the side where the groove is formed, thereby forming the sealing of the gap.
The sealing ring may be made of metal, such as stainless steel, which has a certain degree of bending, and referring to the structure shown in fig. 3, the sealing ring 30 may be made of an annular sheet-shaped stainless steel sheet, and bent into the structure shown in fig. 3, so that the stainless steel sheet forms a groove with an opening facing the second connecting section.
More than two separated flow passages can be formed in the exhaust manifold, for a multi-cylinder engine, the separated flow passages can effectively avoid interference among air flows of all cylinders, and in addition, the separated flow passages can also increase the rigidity of the intake manifold. The cross section of the flow channel can be in an elliptical shape or an approximately elliptical shape, so that the width of the exhaust manifold is reduced to the greatest extent on the basis of ensuring the flow cross section area, and the risk of interference with other parts is reduced.
A second aspect of the present application provides an engine supercharging arrangement comprising an engine, a supercharger and an exhaust manifold as described above, wherein the second manifold member is adapted to be connected to the supercharger to allow gas within a cylinder of the engine to enter the supercharger.
As shown in fig. 1, the exhaust manifold is configured for connecting a six-cylinder engine, the first manifold member 10 is provided with a first port 11 and a second port 12 for connecting an engine cylinder head, the second manifold member 20 is provided with a third port 13, a fourth port 14, a fifth port 15 and a sixth port 16 for connecting the engine cylinder head, the second manifold member 20 defines a first pipeline 21 and a second pipeline 22 which are separated, wherein the air outlet ends of the first pipeline 21 and the second pipeline 22 are connected with a supercharger. The first tubing 21 is in fluid communication with the second connection section such that the first tubing 21 is in fluid communication with the first port 11 and the second port 12, and the first tubing 21 is in fluid communication with the third port 13, and the second tubing 22 is in fluid communication with the fourth port 14, the fifth port 15 and the sixth port 16.
The first port 11 is connected with a first cylinder of an engine, the second port 12 is connected with a second cylinder of the engine, the third port 13 is connected with a third cylinder of the engine, the fourth port 14 is connected with a fourth cylinder of the engine, the fifth port 15 is connected with a fifth cylinder of the engine, and the sixth port 16 is connected with a sixth cylinder of the engine, wherein the exhaust sequence of the cylinders of the engine is the first cylinder, the fifth cylinder, the third cylinder, the sixth cylinder, the second cylinder and the fourth cylinder, therefore, the structure shown in fig. 1 can basically ensure that two cylinders do not exhaust to the same flow passage at the same time in the same time period, and thus mutual disturbance of air flows of different cylinders in the same flow passage is avoided.
A second aspect of the present application provides an automobile including the engine supercharging structure described above.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical scheme of the utility model in the technical conception scope, can be right carry out multiple simple variant. Including each of the specific features, are combined in any suitable manner. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (10)
1. An exhaust manifold, characterized in that, the exhaust manifold includes first manifold piece (10), second manifold piece (20) and sealing washer (30), one of first manifold piece (10) and second manifold piece (20) is used for connecting the engine cylinder lid, and the other is used for connecting the booster, second manifold piece (20) cup joints on first manifold piece (10) with the annular space that forms the backstop in the bell and spigot department, sealing washer (30) set up in the annular space with the bell and spigot clearance of closing between first manifold piece (10) and second manifold piece (20).
2. The exhaust manifold according to claim 1, wherein one of the ports of the first manifold member (10) is provided with a first connecting section extending along a straight line, one of the ports of the second manifold member (20) is provided with a second connecting section extending along a straight line, the inner wall surface of the second connecting section is sleeved on the outer wall surface of the first connecting section, the end of the first connecting section is provided with an extending section (40), the extending section (40) is coaxially arranged with the first connecting section, the outer diameter of the extending section (40) is smaller than that of the first connecting section, so that the extending section (40), the first connecting section and the second connecting section jointly define the annular space, and the sealing ring (30) is arranged on the extending section in a surrounding manner to be arranged in the annular space.
3. An exhaust manifold according to claim 2, characterized in that the sealing ring (30) abuts the end face of the first connecting section.
4. The exhaust manifold according to claim 3, wherein the seal ring (30) is formed with a groove extending along the entire circumference of the seal ring (30), the groove opening to the side where the second connecting section is located.
5. An exhaust manifold according to claim 2 wherein the exhaust manifold has formed therein at least two separate flow passages for the gases in the engine cylinder to enter the supercharger.
6. An exhaust manifold according to claim 5, characterized in that the second manifold piece (20) is adapted to be connected to a supercharger, in that the first manifold piece (10) is provided with a first port (11) and a second port (12) for connection to an engine head, in that the second manifold piece (20) is provided with a third port (13), a fourth port (14), a fifth port (15) and a sixth port (16) for connection to an engine head, in that the second manifold piece (20) defines a first and a second separate line (21, 22), in that the first and the second line (21, 22) are each adapted to be connected to a supercharger, in that the first line (21) is in fluid communication with the second connecting section such that the first line (21) is in fluid communication with the first port (11) and the second port (12), and in that the first line (21) is in fluid communication with the third port (13), the second line (22) is in fluid communication with the fourth port (14), the fifth port (15), and the sixth port (16).
7. The exhaust manifold according to claim 5 wherein the cross-section of the flow channel is elliptical.
8. The exhaust manifold according to any of the claims 1-7, characterized in that the sealing ring (30) is a stainless steel piece.
9. An engine supercharging arrangement, characterized in that the engine supercharging arrangement comprises an engine, a supercharger and an exhaust manifold according to any of claims 1 to 8.
10. An automobile characterized by comprising the engine supercharging structure of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920547730.1U CN209875274U (en) | 2019-04-19 | 2019-04-19 | Exhaust manifold, engine supercharging structure and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920547730.1U CN209875274U (en) | 2019-04-19 | 2019-04-19 | Exhaust manifold, engine supercharging structure and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209875274U true CN209875274U (en) | 2019-12-31 |
Family
ID=68961269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920547730.1U Expired - Fee Related CN209875274U (en) | 2019-04-19 | 2019-04-19 | Exhaust manifold, engine supercharging structure and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209875274U (en) |
-
2019
- 2019-04-19 CN CN201920547730.1U patent/CN209875274U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20191231 |