CN208106545U - A kind of supercharged diesel engine exhaust manifold structure - Google Patents
A kind of supercharged diesel engine exhaust manifold structure Download PDFInfo
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- CN208106545U CN208106545U CN201820339604.2U CN201820339604U CN208106545U CN 208106545 U CN208106545 U CN 208106545U CN 201820339604 U CN201820339604 U CN 201820339604U CN 208106545 U CN208106545 U CN 208106545U
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- pipe
- air inlets
- middle section
- air inlet
- leading portion
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Abstract
A kind of supercharged diesel engine exhaust manifold structure, the total mouth of exhaust being arranged including exhaust pipe and thereon, air inlet, the exhaust pipe includes leading portion pipe, middle section pipe and back segment pipe, one end of the leading portion pipe is connected with No.1 air inlet, the other end of leading portion pipe and one end of middle section pipe are slidably connected, preferably sliding sleeve couples, one end of the other end of middle section pipe and back segment pipe, which is connected with each other, to be structure as a whole, preferably monoblock cast, the other end of back segment pipe is connected with No. six air inlets, the middle part of middle section pipe is connected with total mouth is vented, before, in, back segment pipe can also connect remaining air inlet.The design will not only be concentrated because expanded by heating generates stress, sealing effect is preferable, air tight, but also amount of parts is less, cost is relatively low, application range is wider.
Description
Technical field
The utility model relates to a kind of engine exhaust mechanism more particularly to a kind of supercharged diesel engine exhaust manifold knots
Structure, it is particularly applicable to concentrate because expanded by heating generates stress, and sealing effect is preferable, air tight.
Background technique
Currently, the exhaust gas that the effect of exhaust manifold generates when being by each cylinder working is smooth for supercharged diesel engine
Discharge, can both be expelled directly out outside vehicle, and also may be repeated utilization, such as EGR processor or turbocharging.
Authorization Notice No. is CN206280130U, and authorized announcement date is that the utility model patent on June 27th, 2017 discloses
A kind of constant pressure type exhaust gas recycles six cylinder exhaust pipe structures, is designed as：Exhaust gas enters exhaust by the exhaust duct on cylinder cap
Six air inlets of pipe, the first cylinder of engine, the second cylinder, third cylinder summarize passway and the 4th cylinder, the 5th cylinder, the 6th cylinder converge
Total passway connection makes exhaust pipe-shaped at a total air exit, recycles in the rear side of exhaust pipe equipped with individual exhaust gas
The channel in channel, exhaust gas recycling is communicated with total air exit.Although exhaust pipe is changed to constant pressure type by the design, improves and start
The emission level of machine, but it still has following defect：
Exhaust pipe in the design is monoblock cast structure, does not have retractility, once exhaust pipe is influenced by exhaust high temperature
When generating dilatancy, corresponding deformation cannot be carried out, leads to that stress concentration phenomenon can be generated inside exhaust pipe.
The information for disclosing the background technology part is merely intended to increase the understanding to the general background of present patent application, without
It should be considered as recognizing or implying in any form that the information constitutes existing skill already known to those of ordinary skill in the art
Art.
Summary of the invention
The purpose of the utility model is to overcome existing in the prior art easily because expanded by heating generates the defects of stress collection
With problem, a kind of supercharged diesel engine exhaust manifold structure that stress concentration will not be generated because of expanded by heating is provided.
In order to achieve the above object, the technical solution of the utility model is：A kind of supercharged diesel engine exhaust manifold
Structure, the total mouth of exhaust, the air inlet being arranged including exhaust pipe and thereon, the total mouth of exhaust are communicated through exhaust pipe with air inlet,
And the quantity at least two of air inlet；
The exhaust pipe includes leading portion pipe, middle section pipe and back segment pipe, the air inlet include No.1 air inlet and No. six into
One end of port, the leading portion pipe is connected with No.1 air inlet, and one end of the other end and middle section pipe of leading portion pipe is slided
Connection, the other end of middle section pipe are connected with each other with one end of back segment pipe and are structure as a whole, the other end of back segment pipe and No. six air inlets
Mouth is connected, and the middle part of middle section pipe is connected with total mouth is vented.
Connection type between the leading portion pipe and middle section pipe is that sliding sleeve couples, the company between the middle section pipe and back segment pipe
Connecing mode is monoblock cast.
The position that the middle section leading portion Guan Shangyu pipe is connected enters tube head, the portion that middle section Guan Shangyu leading portion pipe is connected in being
Position is housing tube head, the inner wall of housing tube head with it is interior enter tube head outer wall be slidably matched, and enter on the outer wall of tube head inside
Closure gasket groove is offered with embedding sealing circle.
The air inlet further includes No. two air inlets, No. three air inlets, No. four air inlets and No. five air inlets, the leading portion
The position of nearly middle section pipe is connected with No. two air inlets on pipe, the position of nearly middle section pipe and No. five air inlet phases on the back segment pipe
The position of connection, its upper nearly both ends of middle section pipe is connected with No. three air inlets, No. four air inlets respectively, and is vented total mouth position
Between No. three air inlets, No. four air inlets.
The No.1 air inlet, No. two air inlets, No. three air inlets, No. four air inlets, No. five air inlets, No. six air inlets
Respectively it is connected through a mounting flange with cylinder cap, the venthole communicated with air inlet, Method for Installation is offered in the middle part of mounting flange
Position on orchid positioned at venthole periphery offers multiple installation bolts hole.
The quantity of the installation bolt hole is four, and is uniformly arranged around venthole.
Position on the middle section pipe between No. three air inlets, No. four air inlets is connected with the U being unidirectionally open
Type groove seat, the inner cavity of the groove seat are communicated with total mouth is vented.
The opposite position of the middle section Guan Shangyu groove seat is provided with the arcuate structure of an indent.
One end of the leading portion pipe is connected through No.1 bend pipe with No.1 air inlet, and the other end of the back segment pipe is through No. two
Bend pipe is connected with No. six air inlets.
The No.1 air inlet, No. two air inlets, No. three air inlets, No. four air inlets, No. five air inlets, No. six air inlets
In same horizontal line.
Compared with prior art, the beneficial effects of the utility model are：
1, in a kind of supercharged diesel engine exhaust manifold structure of the utility model, exhaust pipe includes leading portion pipe, middle section pipe
With back segment pipe, wherein be slidably connected between leading portion pipe, middle section pipe, middle section pipe, back segment pipe are then connected with each other and are integrated knot
Structure, the design have two advantages：Firstly, making the opposite sliding ability for having certain between leading portion pipe, middle section pipe, to make
Exhaust pipe has certain retractility on the whole, can be carried out corresponding deformation expanded by heating, answers to avoid generating
Power is concentrated；Secondly, middle section, which is managed, back segment pipe is structure as a whole can improve whole leakproofness, stretching structure is avoided excessively to generate
It is bad as a result, such as increase leakage point, easy gas leakage, especially when the connection type between leading portion pipe and middle section pipe is that sliding sleeve couples,
When connection type between middle section pipe and back segment pipe is monoblock cast, better effect.Therefore, the utility model not only will not because by
Thermal expansion generates stress and concentrates, and sealing effect is preferable, is not easy gas leakage.
2, in a kind of supercharged diesel engine exhaust manifold structure of the utility model, when being sliding between leading portion pipe, middle section pipe
Dynamic connection, when middle section pipe, back segment pipe are structure as a whole, the negligible amounts of whole components are only two, not only reduce part
Quantity reduces cost of parts, and reduces the influence that bolt hole machining tolerance is installed when tube body installation, greatly reduces processing
Influence of the tolerance to cooperating between each tube body, further reduced the possibility of gas leakage.Therefore, the utility model not only cost compared with
It is low, and sealing effect is preferable.
3, in a kind of supercharged diesel engine exhaust manifold structure of the utility model, on leading portion pipe in enter tube head and middle section
Housing tube head on pipe is slidably matched, and enters to be also provided with closure gasket groove on the outer wall of tube head inside with embedding sealing circle, this sets
Meter not only realizes the opposite sliding of leading portion pipe, middle section pipe, it is ensured that exhaust pipe has retractility on the whole, and stress is avoided to concentrate
It generates, and passes through the cooperation of internal plug housing, sealing ring, avoid the gas leakage in sliding process, it is ensured that sealing effect.Cause
This, the utility model will not only generate stress concentration, but also sealing effect is preferable.
4, in a kind of supercharged diesel engine exhaust manifold structure of the utility model, the quantity at least two of air inlet,
It both can only be two, or it is more than two, such as six, so that the cylinder of different number is adapted to, it only need to be according to cylinder
Quantity adjusts the quantity of air inlet, expands adaptation range significantly.Therefore, the application range of the utility model is wider.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the cross-sectional view of Fig. 1.
Fig. 3 is the schematic perspective view of leading portion pipe in Fig. 1.
Fig. 4 is the schematic perspective view of middle section pipe in Fig. 1.
Fig. 5 be in Fig. 2 in enter tube head, housing tube head connection schematic diagram.
In figure：Exhaust pipe 1, the total mouth 2 of exhaust, air inlet 3, the air inlet of air inlet 32, three of No.1 air inlet 31, two
33, No. four air inlet 35, six of air inlet 34, five air inlets 36, leading portion pipe 4, it is interior enter tube head 41, closure gasket groove 42, No.1
Bend pipe 43, middle section pipe 5, housing tube head 51,6, No. two bend pipes 61 of back segment pipe, mounting flange 7, venthole 71, installation bolt hole 72,
Groove seat 8, arcuate structure 9.
Specific embodiment
The utility model is described in further detail below in conjunction with Detailed description of the invention and specific embodiment.
Referring to Fig. 1 to Fig. 5, a kind of supercharged diesel engine exhaust manifold structure, the row being arranged including exhaust pipe 1 and thereon
The total mouth 2 of gas, air inlet 3, the total mouth 2 of exhaust is communicated through exhaust pipe 1 with air inlet 3, and the quantity of air inlet 3 is at least two
It is a；
The exhaust pipe 1 includes leading portion pipe 4, middle section pipe 5 and back segment pipe 6, the air inlet 3 include No.1 air inlet 31 with
One end of No. six air inlets 36, the leading portion pipe 4 is connected with No.1 air inlet 31, the other end and the middle section pipe 5 of leading portion pipe 4
One end is slidably connected, and one end of the other end of middle section pipe 5 and back segment pipe 6, which is connected with each other, to be structure as a whole, back segment pipe 6 it is another
One end is connected with No. six air inlets 36, and the middle part of middle section pipe 5 is connected with total mouth 2 is vented.
Connection type between the leading portion pipe 4 and middle section pipe 5 is that sliding sleeve couples, between the middle section pipe 5 and back segment pipe 6
Connection type be monoblock cast.
The position being connected on the leading portion pipe 4 with middle section pipe 5 enters tube head 41 in being, is connected on middle section pipe 5 with leading portion pipe 4
The position connect is housing tube head 51, the inner wall of housing tube head 51 with it is interior enter tube head 41 outer wall be slidably matched, and enter inside
Closure gasket groove 42 is offered on the outer wall of tube head 41 with embedding sealing circle.
The air inlet 3 further includes the air inlet 34 of air inlet 33, four of No. two air inlets 32, three and No. five air inlets
35, the position of nearly middle section pipe 5 is connected with No. two air inlets 32 on the leading portion pipe 4, nearly middle section pipe 5 on the back segment pipe 6
Position is connected with No. five air inlets 35, on the middle section pipe 5 position at its nearly both ends respectively with No. three air inlets 33, four into
Port 34 is connected, and is vented total mouth 2 between 33, No. four air inlets 34 of No. three air inlets.
The air inlet 34, five of air inlet 33, four of air inlet 32, three of the No.1 air inlet 31, two air inlet 35,
No. six air inlets 36 are respectively connected through a mounting flange 7 with cylinder cap, and the middle part of mounting flange 7 is offered to be communicated with air inlet 3
Venthole 71, the position that 71 periphery of venthole is located on mounting flange 7 offers multiple installation bolts hole 72.
The quantity of the installation bolt hole 72 is four, and is uniformly arranged around venthole 71.
Position on the middle section pipe 5 between 33, No. four air inlets 34 of No. three air inlets is connected with one and unidirectionally opens
The U-shaped groove seat 8 of mouth, the inner cavity of the groove seat 8 are communicated with total mouth 2 is vented.
The position opposite with groove seat 8 is provided with the arcuate structure 9 of an indent on the middle section pipe 5.
One end of the leading portion pipe 4 is connected through No.1 bend pipe 43 with No.1 air inlet 31, the other end of the back segment pipe 6
It is connected through No. two bend pipes 61 with No. six air inlets 36.
The air inlet 34, five of air inlet 33, four of air inlet 32, three of the No.1 air inlet 31, two air inlet 35,
No. six air inlets 36 are located in same horizontal line.
The principles of the present invention are described as follows：
During waste air, pipe shaft is influenced exhaust pipe by exhaust high temperature, meeting dilatancy, if exhaust pipe cannot fit
It should deform, that is, corresponding deformation occurs, then can generate stress inside exhaust pipe, lead to adverse consequences.But if in order to keep away
Exempt from the generation of stress, and is the movable connection method of multistage by Design of Exhaust Manifold, and will lead to and generate gas leakage between multiple tube bodies
Risk, but also can bring that amount of parts is excessive, the influence between tube body cooperation vulnerable to installation bolt hole machining tolerance.For
This, exhaust pipe is only designed as three sections by the utility model, more will be therein before, in two sections of pipes be designed as slip connection mode, with
Have certain retractility, can make exhaust pipe that can prolong direction displacement after temperature distortion, plays the role of offsetting stress, together
When, by, rear two sections of pipes design be structure as a whole, to avoid the generation of gas leakage risk, moreover it is possible to reduce the quantity of components.Such as
This, had not only had the ability for making up temperature distortion, but also reduced a cooperation risk point, to reduce by a leakage point, improved
The reliability of exhaust pipe, also reduces number of parts, reduces cost of parts, facilitates type management and rear market spare parts management.
Embodiment 1：
Referring to Fig. 1 to Fig. 5, a kind of supercharged diesel engine exhaust manifold structure, the row being arranged including exhaust pipe 1 and thereon
The total mouth 2 of gas, air inlet 3, the total mouth 2 of exhaust is communicated through exhaust pipe 1 with air inlet 3, and the quantity of air inlet 3 is at least two
It is a；The exhaust pipe 1 includes leading portion pipe 4, middle section pipe 5 and back segment pipe 6, and the air inlet 3 includes No.1 air inlet 31 and No. six
One end of air inlet 36, the leading portion pipe 4 is connected with No.1 air inlet 31, the other end of leading portion pipe 4 and one end of middle section pipe 5
It is slidably connected, the other end of middle section pipe 5 is connected with each other with one end of back segment pipe 6 and is structure as a whole, the other end of back segment pipe 6
It is connected with No. six air inlets 36, and the middle part of middle section pipe 5 is connected with total mouth 2 is vented.
Embodiment 2：
Basic content with embodiment 1, the difference is that：
Connection type between leading portion pipe 4 and middle section pipe 5 is that sliding sleeve couples, the company between the middle section pipe 5 and back segment pipe 6
Connecing mode is monoblock cast.It is preferred that the position being connected on leading portion pipe 4 with middle section pipe 5 be it is interior enter tube head 41, on middle section pipe 5 with before
The position that is connected of section pipe 4 is housing tube head 51, the inner wall of housing tube head 51 with it is interior enter tube head 41 outer wall be slidably matched,
And enters offer closure gasket groove 42 on the outer wall of tube head 41 with embedding sealing circle inside.
Embodiment 3：
Basic content with embodiment 1, the difference is that：
The air inlet 3 further includes the air inlet 34 of air inlet 33, four of No. two air inlets 32, three and No. five air inlets
35, the position of nearly middle section pipe 5 is connected with No. two air inlets 32 on the leading portion pipe 4, nearly middle section pipe 5 on the back segment pipe 6
Position is connected with No. five air inlets 35, on the middle section pipe 5 position at its nearly both ends respectively with No. three air inlets 33, four into
Port 34 is connected, and is vented total mouth 2 between 33, No. four air inlets 34 of No. three air inlets.
Embodiment 4：
Basic content with embodiment 3, the difference is that：
The air inlet 34, five of air inlet 33, four of air inlet 32, three of the No.1 air inlet 31, two air inlet 35,
No. six air inlets 36 are respectively connected through a mounting flange 7 with cylinder cap, and the middle part of mounting flange 7 is offered to be communicated with air inlet 3
Venthole 71, the position that 71 periphery of venthole is located on mounting flange 7 offers multiple installation bolts hole 72.It is preferred that installation spiral shell
The quantity of keyhole 72 is four, and is uniformly arranged around venthole 71.
Embodiment 5：
Basic content with embodiment 3, the difference is that：
Position on the middle section pipe 5 between 33, No. four air inlets 34 of No. three air inlets is connected with one and unidirectionally opens
The U-shaped groove seat 8 of mouth, the inner cavity of the groove seat 8 are communicated with total mouth 2 is vented.Further, it is also possible on middle section pipe 5 with groove seat 8
Opposite position is provided with the arcuate structure 9 of an indent.Groove seat 8, arcuate structure 9 may serve to external equipment to row
Exhaust gas in tracheae 1 is recycled again.
Claims (10)
1. a kind of supercharged diesel engine exhaust manifold structure, including exhaust pipe（1）And the total mouth of exhaust being arranged thereon（2）, into
Port（3）, the total mouth of exhaust（2）Through exhaust pipe（1）With air inlet（3）It communicates, and air inlet（3）Quantity be at least two
It is a, it is characterised in that：
The exhaust pipe（1）Including leading portion pipe（4）, middle section pipe（5）With back segment pipe（6）, the air inlet（3）Including No.1 air inlet
Mouthful（31）With No. six air inlets（36）, the leading portion pipe（4）One end and No.1 air inlet（31）It is connected, leading portion pipe（4）'s
The other end and middle section are managed（5）One end be slidably connected, middle section pipe（5）The other end and back segment pipe（6）One end mutually interconnect
It is connected in integral structure, back segment pipe（6）The other end and No. six air inlets（36）It is connected, and middle section is managed（5）Middle part and exhaust
Total mouth（2）It is connected.
2. a kind of supercharged diesel engine exhaust manifold structure according to claim 1, it is characterised in that：The leading portion pipe
（4）It is managed with middle section（5）Between connection type be sliding sleeve connection, middle section pipe（5）With back segment pipe（6）Between connection type
For monoblock cast.
3. a kind of supercharged diesel engine exhaust manifold structure according to claim 2, it is characterised in that：The leading portion pipe
（4）It manages in upper and middle section（5）The position being connected enters tube head in being（41）, middle section pipe（5）Upper and leading portion pipe（4）The position being connected
For housing tube head（51）, housing tube head（51）Inner wall and it is interior enter tube head（41）Outer wall be slidably matched, and enter pipe inside
Head（41）Outer wall on offer closure gasket groove（42）With embedding sealing circle.
4. a kind of supercharged diesel engine exhaust manifold structure according to claim 1,2 or 3, it is characterised in that：It is described
Air inlet（3）It further include No. two air inlets（32）, No. three air inlets（33）, No. four air inlets（34）With No. five air inlets（35）,
The leading portion pipe（4）Upper nearly middle section pipe（5）Position and No. two air inlets（32）It is connected, the back segment pipe（6）Upper nearly middle section
Pipe（5）Position and No. five air inlets（35）It is connected, the middle section pipe（5）The position at its upper nearly both ends respectively with No. three air inlets
Mouthful（33）, No. four air inlets（34）It is connected, and is vented total mouth（2）Positioned at No. three air inlets（33）, No. four air inlets（34）It
Between.
5. a kind of supercharged diesel engine exhaust manifold structure according to claim 4, it is characterised in that：The No.1 into
Port（31）, No. two air inlets（32）, No. three air inlets（33）, No. four air inlets（34）, No. five air inlets（35）, No. six air inlets
Mouthful（36）Respectively through a mounting flange（7）It is connected with cylinder cap, mounting flange（7）Middle part offer and air inlet（3）It communicates
Venthole（71）, mounting flange（7）It is upper to be located at venthole（71）The position on periphery offers multiple installation bolts hole（72）.
6. a kind of supercharged diesel engine exhaust manifold structure according to claim 5, it is characterised in that：The installation spiral shell
Keyhole（72）Quantity be four, and around venthole（71）It is uniformly arranged.
7. a kind of supercharged diesel engine exhaust manifold structure according to claim 4, it is characterised in that：The middle section pipe
（5）It is upper to be located at No. three air inlets（33）, No. four air inlets（34）Between position be connected with the U-shaped groove seat being unidirectionally open
（8）, the groove seat（8）Inner cavity and be vented total mouth（2）It communicates.
8. a kind of supercharged diesel engine exhaust manifold structure according to claim 7, it is characterised in that：The middle section pipe
（5）Upper and groove seat（8）Opposite position is provided with the arcuate structure of an indent（9）.
9. a kind of supercharged diesel engine exhaust manifold structure according to claim 4, it is characterised in that：The leading portion pipe
（4）One end through No.1 bend pipe（43）With No.1 air inlet（31）It is connected, the back segment pipe（6）The other end through No. two bend pipes
（61）With No. six air inlets（36）It is connected.
10. a kind of supercharged diesel engine exhaust manifold structure according to claim 9, it is characterised in that：The No.1
Air inlet（31）, No. two air inlets（32）, No. three air inlets（33）, No. four air inlets（34）, No. five air inlets（35）, No. six into
Port（36）In same horizontal line.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820339604.2U CN208106545U (en) | 2018-03-13 | 2018-03-13 | A kind of supercharged diesel engine exhaust manifold structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820339604.2U CN208106545U (en) | 2018-03-13 | 2018-03-13 | A kind of supercharged diesel engine exhaust manifold structure |
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| Publication Number | Publication Date |
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| CN208106545U true CN208106545U (en) | 2018-11-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386264A (en) * | 2018-03-13 | 2018-08-10 | 东风商用车有限公司 | A kind of supercharged diesel engine exhaust manifold structure |
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2018
- 2018-03-13 CN CN201820339604.2U patent/CN208106545U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386264A (en) * | 2018-03-13 | 2018-08-10 | 东风商用车有限公司 | A kind of supercharged diesel engine exhaust manifold structure |
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