CN205532820U - Exhaust pipe - Google Patents
Exhaust pipe Download PDFInfo
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- CN205532820U CN205532820U CN201620104957.5U CN201620104957U CN205532820U CN 205532820 U CN205532820 U CN 205532820U CN 201620104957 U CN201620104957 U CN 201620104957U CN 205532820 U CN205532820 U CN 205532820U
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- house steward
- manifold
- exhaustor
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- axis
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Abstract
The utility model relates to a diesel engine exhaust system technical field provides an exhaust pipe. Include the logical body unit of end to end in proper order, the body unit includes house steward and the manifold that is linked together with house steward, and exhaust pipe's one end is equipped with the gas vent, manifold and the house steward department of being linked together are equipped with the guide plate, and inside the guide plate extended to house steward along the tangential direction of manifold and house steward intersection, one side of gas vent was kept away from in the guide plate setting at the manifold, the throat rate that manifold and house steward are linked together the entry cross -section of the relative manifold in cross -section of department is 70%~80%, the contained angle that manifold and house steward are linked together axis and the house steward's of department between axis is 20~30. The utility model relates to an acceleration and the ejector action of exhaust pipe make full use of exhaust air current promote to have improved row air pulse energy use rate to the scavenging of a last jar, and pumping loss is little during the exhaust, and the part adopts seriation, standardized design, have part and advantages such as sealed face is less, part interchangeability is strong, are suitable for the popularization of practical value.
Description
Technical field
This utility model belongs to diesel engine exhaust system technical field, particularly relates to a kind of exhaustor.
Background technology
The air inlet pipe of diesel engine and exhaustor are one of critical pieces of diesel engine, the work efficiency to diesel engine
Have a very big impact.Exhaustor is the ingredient of diesel engine exhaust system, is used for connecting exhaust duct of cylinder cover
Outlet, the waste gas that conveying electromotor produces.Exhaustor includes exhaust main and multiple exhaust manifold.Aerofluxus is total
Pipe is the main pipe rail collecting each cylinder aerofluxus, is connected with supercharger or deafener；Exhaust manifold is used for connecting each cylinder
Exhaust duct outlet and the pipeline of exhaust main.Transition between exhaust main and exhaust manifold sometimes and rough,
Even there is abrupt change of cross-section part.Therefore the high-temperature high-pressure air flow that very fast detonation sprays from cylinder head is in aerofluxus
In pipe during flowing, the resistance run into is the biggest, and exhaust velocity is lowered, and leverages the work of diesel engine
Make performance.
On large scale multi-cylinder diesel engine, for ensureing less pumping loss, it is desirable to exhaustor is at manifold to house steward
Air current flow loss the least；Meanwhile, can not produce between each cylinder aerofluxus and interfere；It addition, for
Electromotor familyization considers, it is desirable to exhaustor part is the most general.Problem above is needed badly further to row
Trachea improves.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of exhaustor, and this exhaustor makes full use of aerofluxus
The acceleration of air-flow and ejector action, promote the scavenging to a upper cylinder, improves the pulse energy of discharge waste gas
Utilization rate, the advantage that when having aerofluxus, pumping loss is little.
For solving above-mentioned technical problem, the technical solution of the utility model is:
A kind of exhaustor, including the body unit being connected to end successively, described body unit includes that two ends are opened
The house steward put and the manifold being connected with described house steward；One end of described exhaustor is provided with air vent；Described discrimination
Pipe is provided with deflector with the described house steward place of being connected, and described deflector is along described manifold and described house steward intersection
Tangential direction extend to the inside of described house steward, described deflector is arranged on described manifold away from described aerofluxus
The side of mouth；Described manifold is connected with described house steward the contracting of entrance section of the relative described manifold in cross section at place
Mouth rate is 70%～80%, the folder between the axis of described manifold and the axis of described house steward intersection and described house steward
Angle is 20 °～30 °.
As a kind of improved plan, described manifold is connected with described house steward the relative described manifold in cross section located
The reducing rate of entrance section be 75%.
As a kind of improved plan, the axis of described manifold and described house steward intersection and the axle of described house steward
Wire clamp angle is 25 °.
As a kind of improved plan, each described body unit at least includes two described manifolds.
As a kind of improved plan, described exhaustor is provided with end cap away from the end of described air vent.
As a kind of improved plan, it is tightly connected by expansion joint between house steward described in adjacent two.
Owing to have employed technique scheme, the beneficial effects of the utility model are:
A kind of exhaustor, including some body unit being connected to end successively, body unit include house steward and
The manifold being connected with house steward；One end of exhaustor is provided with air vent；Manifold is provided with the house steward place of being connected and leads
Stream plate, deflector tangential direction with described house steward intersection along described manifold extends to the inside of house steward,
Deflector is arranged on the manifold side away from air vent；Manifold is connected with house steward the cross section opposed manifolds at place
The reducing rate in the cross section of entrance is 70%～80%, between the axis of manifold and the axis of house steward intersection and house steward
Angle is 20 °～30 °.Waste gas in cylinder of diesel engine body is arranged to house steward by manifold, due to manifold and house steward
The reducing rate in cross section of entrance of cross section opposed manifolds at place of being connected is 70%～80%, at waste gas through manifold
It is connected with house steward when locating and constantly accelerates, the air-flow in house steward is played ejector action, thus promotes upper one
Cylinder body discharges the scavenging of waste gas.The pulse energy discharging waste gas is obtained by, decreases pump during aerofluxus
Gas loses.Manifold is provided with deflector with the house steward place of being connected, and the waste gas in manifold is deflector when entering house steward
There is guide effect, can effectively prevent the impact on manifold air flow of house steward's air-flow, further enhancing manifold
At middle row, waste gas is to the ejector action of gas in house steward, strengthens scavenging effect, when further reducing aerofluxus
Pumping loss.
Owing to each body unit at least includes two manifolds, by integrated for the exhaustor of adjacent diesel engine cylinder block,
Part, sealing surface quantity are all greatly reduced, effectively reduces the risk of exhaustor gas leakage, to improving row
The quality of trachea is significant.
Owing to exhaustor is provided with end cap away from the end of air vent so that the body unit in whole exhaustor
Realizing standardization, seriation, interchangeablity is strong, reduces the difficulty in processing and fabricating, effectively controls
Manufacturing cost.
Owing to being tightly connected by expansion joint between adjacent two house stewards, this design simple in construction, easy accessibility,
Good airproof performance, is suitable to practicality.
In sum, this utility model one exhaustor, this exhaustor make full use of exhaust airstream acceleration and
Ejector action, promotes the scavenging to a upper cylinder, the utilization rate of the pulse energy of waste gas, aerofluxus at the row of improve
Time pumping loss little, and part use seriation, standardized designs, have part and sealing surface is less, zero
The advantages such as part interchangeability is strong, are suitable to the popularization of practical value.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of exhaustor of this utility model；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is A-A sectional view in Fig. 2；
Wherein: 1-body unit, house steward 11-, 12-manifold, 13-deflector, 14-aditus laryngis, 2-expansion joint,
3-air vent, 4-end cap.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And embodiment, this utility model is further elaborated.Should be appreciated that described herein specifically
Embodiment, only in order to explain this utility model, is not used to limit this utility model.
Jointly shown with Fig. 3 as shown in Figure 1, Figure 2, a kind of exhaustor includes being joined end to end successively by expansion joint 2
Three logical body unit 1, one end of exhaustor is provided with air vent 3, and the other end is provided with end cap 4.Adjacent
It is tightly connected by expansion joint 2 between two body unit 1, this design simple in construction, easy accessibility, seals
Property is good, is suitable to practicality.End cap 4 makes the body unit 1 in whole exhaustor realize standardization, seriation,
Interchangeablity is strong, reduces the difficulty in processing and fabricating, effectively controls manufacturing cost.
As Fig. 2 and Fig. 3 jointly shown in, body unit 1 include the house steward 11 of both ends open and two set side by side
The manifold 12 being connected with house steward 11 put.Two manifolds 12 of body unit 1 are by adjacent diesel engine cylinder block
Exhaustor integrated so that part, sealing surface quantity all greatly reduce, effectively reduce exhaustor gas leakage
Risk, significant to the quality improving exhaustor.Manifold 12 is provided with house steward 11 place of being connected and leads
Stream plate 13, deflector 13 tangential direction with house steward 11 intersection along manifold 12 extends to house steward's 11
Internal.Deflector 13 is arranged on the manifold 12 side away from air vent 3.Manifold 12 is connected with house steward 11
The cross section reducing rate of the entrance of the cross section opposed manifolds 12 of the aditus laryngis 14 at logical place is 70%～80%, this embodiment party
Formula preferred reducing rate is 75%, and at aditus laryngis 14, the angle between the axis of manifold 12 and the axis of house steward 11 is
20 °～30 °, the preferred angle of present embodiment is 25 °.
Waste gas in cylinder of diesel engine body by manifold 12 row to house steward 11 aerofluxus, due to the cross section phase of aditus laryngis 14
Reducing rate to the cross section of the entrance of manifold 12 is 75%, constantly accelerates when waste gas is through aditus laryngis 14, right
Air-flow in house steward 11 plays ejector action, thus promotes to discharge a upper cylinder body scavenging of waste gas so that row
The pulse energy going out waste gas is obtained by, and decreases pumping loss during aerofluxus.It is provided with deflector at aditus laryngis 14
13, the deflector 13 when entering house steward 11 of the waste gas in manifold 12 has guide effect, can effectively prevent
The impact on manifold 12 air-flow of house steward 11 air-flow, further enhancing and discharge waste gas in manifold 12 to house steward
The ejector action of gas in 11, strengthens scavenging effect, further reduces pumping loss during aerofluxus.
In sum, this utility model one exhaustor, this exhaustor make full use of exhaust airstream acceleration and
Ejector action, promotes the scavenging to a upper cylinder, the utilization rate of the pulse energy of waste gas, aerofluxus at the row of improve
Time pumping loss little, and part use seriation, standardized designs, have part and sealing surface is less, zero
The advantages such as part interchangeability is strong, are suitable to the popularization of practical value.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model,
All any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, all should
Within being included in protection domain of the present utility model.
Claims (6)
1. an exhaustor, including the body unit being connected to end successively, described body unit includes house steward
And the manifold being connected with described house steward, one end of described exhaustor is provided with air vent, it is characterised in that:
Described manifold is provided with deflector with the described house steward place of being connected, described deflector along described manifold with described
The tangential direction of house steward intersection extends to the inside of described house steward, and it is remote that described deflector is arranged on described manifold
Side from described air vent；
Be connected with the described house steward reducing rate of entrance section of the relative described manifold in cross section at place of described manifold is
70%～80%；
Described manifold be connected with described house steward place axis and described house steward axis between angle be 20 °～
30°。
Exhaustor the most according to claim 1, it is characterised in that: described manifold is connected with described house steward
The reducing rate of the entrance section of the most described manifold in cross section at logical place is 75%.
Exhaustor the most according to claim 2, it is characterised in that: described manifold crosses with described house steward
The axis at place is 25 ° with the axis angle of described house steward.
Exhaustor the most according to any one of claim 1 to 3, it is characterised in that: each described pipe
Body unit at least includes two described manifolds.
Exhaustor the most according to claim 4, it is characterised in that: described exhaustor is away from described aerofluxus
The end of mouth is provided with end cap.
Exhaustor the most according to claim 5, it is characterised in that: pass through between house steward described in adjacent two
Expansion joint is tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620104957.5U CN205532820U (en) | 2016-02-02 | 2016-02-02 | Exhaust pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620104957.5U CN205532820U (en) | 2016-02-02 | 2016-02-02 | Exhaust pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205532820U true CN205532820U (en) | 2016-08-31 |
Family
ID=56775444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620104957.5U Active CN205532820U (en) | 2016-02-02 | 2016-02-02 | Exhaust pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205532820U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757105A (en) * | 2018-04-12 | 2018-11-06 | 吉林大学 | A kind of Fractions of Diesel Engine Exhaust Particulates object collection device |
-
2016
- 2016-02-02 CN CN201620104957.5U patent/CN205532820U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757105A (en) * | 2018-04-12 | 2018-11-06 | 吉林大学 | A kind of Fractions of Diesel Engine Exhaust Particulates object collection device |
| CN108757105B (en) * | 2018-04-12 | 2020-03-31 | 吉林大学 | Diesel engine tail gas particulate matter collection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |