CN207795368U - Automobile exhaust pipe accumulated water drainage device - Google Patents
Automobile exhaust pipe accumulated water drainage device Download PDFInfo
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- CN207795368U CN207795368U CN201820016420.2U CN201820016420U CN207795368U CN 207795368 U CN207795368 U CN 207795368U CN 201820016420 U CN201820016420 U CN 201820016420U CN 207795368 U CN207795368 U CN 207795368U
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- air inlet
- drainage device
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Abstract
The utility model belongs to automobile exhaust system technical field, it is related to a kind of automobile exhaust pipe accumulated water drainage device, including air inlet pipe, casing and escape pipe, described sleeve pipe includes air inlet side pipeline section, outlet side pipe section and transitional pipe segment, the air inlet side pipeline section is sleeved on the outlet side of the air inlet pipe, the outlet side pipe section is sleeved on the inlet end of the escape pipe, the outlet side of the air inlet pipe is opposite with the inlet end interval of the escape pipe to form gap between, the transitional pipe segment, it surrounds to form a water drain cavity between the outlet side of outlet side pipe section and the air inlet pipe, the bottom of the outlet side pipe section is provided with the osculum for being communicated in the water drain cavity and outside atmosphere, the osculum is located at the lowest point of the automobile exhaust pipe accumulated water drainage device.The automobile exhaust pipe accumulated water drainage device of the utility model, it is easy to which ponding is discharged except exhaust pipe on ground, avoids the problem of ponding causes exhaust pipe corrosion and engine that can not start.
Description
Technical field
The utility model belongs to automobile exhaust system technical field, excludes to fill more particularly to a kind of automobile exhaust pipe ponding
It sets.
Background technology
Automobile exhaust system is the important component of automobile, and the water that exhaust gas simultaneously also generates burning is discharged in exhaust system
Steam is rejected in air.But when engine misses, a large amount of vapor are also maintain inside high-temperature exhaust pipe, are being vented
When pipe is cooled down by environment temperature, the vapor for generation of burning can be condensed into liquid water in exhaust pipe wall surface, when liquid water accumulation compared with
It when more, form big water droplet and rolls down to exhaust pipe lowest point along exhaust pipe wall surface, gradually accumulation becomes the ponding of large area.Separately
Outside, it when vehicle is in flameout state, is exposed in rainy environment, rainwater and water mist are also possible to enter row by tailpipe
Gas system, to be accumulated in exhaust pipe lowest point.Ponding can aggravate corrosion (water and the sour gas reaction generation of exhaust system
Acid, acid not only can directly etching stainless steel exhaust pipes, moreover it is possible to reinforce electrochemical corrosion), and when ponding (floods row to a certain extent
Tracheae lowest point diameter) when, exhaust pipe will be blocked, cause vehicle that can not start, such case can also at the relatively low area of temperature
Cause to condense water freezing in exhaust pipe, freezes at this time, it may be necessary to which lifting machine external heat source on vehicle is melted and ponding is discharged, give
Automobile routine use brings huge inconvenience, and engine start difficulty is further aggravated.
In order to solve the problems, such as that the discharge of ponding, a kind of existing treatment measures are to try to avoid exhaust pipe to be whole gas extraction system
Lowest point, and make exhaust pipe be higher than silencer, osculum is then beaten on silencer, will be more by the osculum on silencer
Remaining condensed water discharge.
But exhaust pipe is caused to need to be designed as exhaust system due to the limitation in chassis space in many cases,
Minimum point can not discharge it naturally in time at this point, when condensed water is when minimum point accumulates；Uniquely discharge approach is：It is sending out
Motivation is stepped on the gas suddenly when starting, and ponding is taken away with air-flow.As it can be seen that needing to be designed as at the minimum point of exhaust system in exhaust pipe
In existing scheme, ponding is difficult discharge.
Utility model content
Technical problem to be solved in the utility model is：It needs to be designed as at the minimum point of exhaust system for exhaust pipe
Existing scheme in, ponding be difficult discharge the problem of, a kind of automobile exhaust pipe accumulated water drainage device is provided.
In order to solve the above technical problems, the utility model embodiment provides a kind of automobile exhaust pipe accumulated water drainage device, packet
Include air inlet pipe, casing and escape pipe, described sleeve pipe includes air inlet side pipeline section, outlet side pipe section and is connected to the air inlet side pipeline section
With the transitional pipe segment between outlet side pipe section, the air inlet side pipeline section is sleeved on the outlet side of the air inlet pipe, it is described go out gas side
Pipeline section is sleeved on the inlet end of the escape pipe, and the internal diameter of the air inlet side pipeline section is less than the internal diameter of the outlet side pipe section, institute
Described sleeve pipe is stretched into the outlet side for stating air inlet pipe, the outlet side of the air inlet pipe it is opposite with the inlet end interval of the escape pipe with
Gap is formed between, surrounds to form one between the outlet side of the transitional pipe segment, outlet side pipe section and the air inlet pipe
Water drain cavity, the rear end of the water drain cavity are communicated with the gap, and the bottom of the outlet side pipe section, which is provided with, is communicated in institute
Water drain cavity and the osculum of outside atmosphere are stated, the osculum is located at the minimum of the automobile exhaust pipe accumulated water drainage device
Place.
Optionally, the air inlet side pipeline section and outlet side pipe section are straight pipe section.
Optionally, the transitional pipe segment is taper pipeline section.
Optionally, the pipeline section of the escape pipe being located at after its inlet end is formed as the straight pipe section of escape pipe, it is described into
The outlet side of tracheae is straight pipe section, and the straight pipe section of escape pipe is identical as the internal diameter of the outlet side of the air inlet pipe.
Optionally, the inlet end of the escape pipe includes connecting straight pipe section and transition taper pipeline section, the transition taper
Pipeline section is connected between connection straight pipe section and the straight pipe section of the escape pipe, and the internal diameter of the straight pipe section of connection is more than
The internal diameter of the straight pipe section of escape pipe, the outlet side pipe section are sleeved in the straight pipe section of connection.
Optionally, the gap is greater than or equal to 3mm.
Optionally, the automobile exhaust pipe accumulated water drainage device further includes cylindrical gauze pad, the inner ring of the gauze pad
It is sleeved on the outlet side of the air inlet pipe, the outer ring of the gauze pad is contacted with the inner wall of the outlet side pipe section, the drainage cavity
The rear end of room is connected to by the mesh opened up on the gauze pad with the gap.
Optionally, the gauze pad is located in the water drain cavity, the outlet side of the rear end of the gauze pad and the air inlet pipe
End face it is concordant.
The automobile exhaust pipe accumulated water drainage device of the utility model embodiment, when the engine starts, due to pipeline (air inlet
The entirety of pipe, casing and escape pipe) in air velocity be more than the air velocity outside pipeline, inside and outside differential pressure makes the row in pipeline
Gas will not substantially be revealed from the osculum on casing.And exhaust airstream is not present when engine misses, in pipeline, only
Water flowing is condensed, at this point, since osculum is located at the lowest point of automobile exhaust pipe accumulated water drainage device, condensed water is along in pipeline
Wall flows to osculum, flows through the gap formed between the outlet side of air inlet pipe and the inlet end of escape pipe, and flow oozed downwards net
It pads, surrounds the drainage cavity to be formed between the outlet side of the transitional pipe segment of sleeve pipe, the outlet side pipe section of casing and air inlet pipe
Pipeline is flowed out in room using the osculum of the bottom of outlet side pipe section.Flow ceaselessly flows, until the water in pipeline is all arranged
Go out.Easily ponding is discharged except exhaust pipe as a result, avoiding ponding causes exhaust pipe corrosion and engine that can not start
The problem of.
Description of the drawings
Fig. 1 is the front view for the automobile exhaust pipe accumulated water drainage device that one embodiment of the utility model provides；
Fig. 2 is the upward view for the automobile exhaust pipe accumulated water drainage device that one embodiment of the utility model provides；
Fig. 3 is the sectional view in the directions A-A along Fig. 2；
Fig. 4 is gas of the automobile exhaust pipe accumulated water drainage device of one embodiment of the utility model offer in engine start
Flow flow graph；
Fig. 5 is that the automobile exhaust pipe accumulated water drainage device that one embodiment of the utility model provides is solidifying in engine misses
Bear water flow graph.
Reference numeral in specification is as follows：
1, air inlet pipe；11, outlet side；
2, casing；21, air inlet side pipeline section；22, outlet side pipe section；23, transitional pipe segment；24, osculum；
3, escape pipe；31, inlet end；311, straight pipe section is connected；312, transition taper pipeline section；32, the straight pipe of escape pipe
Section；
4, gap；
5, water drain cavity；
6, gauze pad.
Specific implementation mode
The technical issues of in order to keep the utility model solved, technical solution and advantageous effect are more clearly understood, below
In conjunction with accompanying drawings and embodiments, the utility model is described in further detail.It should be appreciated that specific reality described herein
Example is applied only to explain the utility model, is not used to limit the utility model.
As shown in Figure 1 to Figure 3, the automobile exhaust pipe accumulated water drainage device that one embodiment of the utility model provides, including into
Tracheae 1, casing 2 and escape pipe 3, described sleeve pipe 2 include air inlet side pipeline section 21, outlet side pipe section 22 and are connected to the air inlet side
Transitional pipe segment 23 between pipeline section 21 and outlet side pipe section 22, the air inlet side pipeline section 21 are sleeved on the outlet of the air inlet pipe 1
End 11, the outlet side pipe section 22 are sleeved on the inlet end 31 of the escape pipe 3, and the internal diameter of the air inlet side pipeline section 21 is less than institute
The internal diameter of outlet side pipe section 22 is stated, described sleeve pipe 2, the outlet side 11 of the air inlet pipe 1 are stretched into the outlet side 11 of the air inlet pipe 1
It is spaced with the inlet end 31 of the escape pipe 3 opposite to form gap 4, the transitional pipe segment 23, outlet side pipe between
Section 22 and the air inlet pipe 1 outlet side 11 between surround to form a water drain cavity 5, the rear end of the water drain cavity 5 with it is described
Gap 4 communicates, and the bottom of the outlet side pipe section 22 is provided with the osculum for being communicated in the water drain cavity 5 and outside atmosphere
24, the osculum 24 is located at the lowest point of the automobile exhaust pipe accumulated water drainage device.
In one embodiment, the air inlet side pipeline section 21 welds (such as spot welding) in the outlet side of the air inlet pipe 1 11
On periphery.The outlet side pipe section 22 welds (such as spot welding) on the periphery of the inlet end 31 of the escape pipe 3.
In one embodiment, as shown in Figure 1 to Figure 3, the air inlet side pipeline section 21 and outlet side pipe section 22 are straight pipe
Section, the transitional pipe segment 23 are taper pipeline section.
In one embodiment, as shown in Figures 1 to 3, the pipeline section after its inlet end 31 of the escape pipe 3 is formed as
The straight pipe section 32 of escape pipe, the outlet side 11 of the air inlet pipe 1 are straight pipe section, the straight pipe section 32 of escape pipe with it is described into
The internal diameter of the outlet side 11 of tracheae 1 is identical.
In one embodiment, as shown in Figures 1 to 3, the inlet end 31 of the escape pipe 3 include connect straight pipe section 311 and
Transition taper pipeline section 312, the transition taper pipeline section 312 is connected to the straight pipe section 311 of connection directly to be justified with the escape pipe
Between pipeline section 32, the internal diameter of the straight pipe section of the connection 311 is more than the internal diameter of the straight pipe section of the escape pipe 32, it is described go out gas side
Pipeline section 22 is sleeved on described connect in straight pipe section 311.
In one embodiment, as shown in figure 3, the automobile exhaust pipe accumulated water drainage device further includes cylindrical gauze pad
6, the inner ring of the gauze pad 6 is sleeved on the outlet side 11 of the air inlet pipe 1, the outer ring of the gauze pad 6 and the outlet side pipe section
22 inner wall contact, the rear end of the water drain cavity 5 is connected to by the mesh opened up on the gauze pad 6 with the gap 4.
In one embodiment, as shown in figure 3, the gauze pad 6 is located in the water drain cavity 5, the rear end of the gauze pad 6 with
The end face of the outlet side 11 of the air inlet pipe 1 is concordant.At this point, the gap 4 be exactly equal to the gauze pad 6 rear end with it is described go out
The distance of the inlet end 31 of tracheae 3.
In a preferred embodiment, the gap 4 is greater than or equal to 3mm.To ensure that ponding can be smooth by the gap 4
Ground enters in water drain cavity 5.
In one embodiment, gauze pad 6 is steel net pad.
The automobile exhaust pipe accumulated water drainage device that above-described embodiment provides, operation principle are as follows：
When the engine starts, since the air velocity in pipeline (air inlet pipe 1, casing 2 and escape pipe 3 are whole) is more than pipe
Air velocity outside road, inside and outside differential pressure make the exhaust in pipeline substantially not revealed from the osculum 24 on casing 2.This
When air flow direction it is as shown in Figure 4.
When engine misses, exhaust airstream is not present in pipeline, water flowing is only condensed, at this point, due to osculum 24
Positioned at the lowest point of automobile exhaust pipe accumulated water drainage device, condensed water flows to osculum 24 along inner wall of the pipe.The stream of condensed water
To as shown in figure 5, i.e. condensed water is flowed through along inner wall of the pipe between the outlet side 11 of air inlet pipe 1 and the inlet end 31 of escape pipe 3
The gap 4 of formation, flow oozed downwards gauze pad 6, the transitional pipe segment 23 of sleeve pipe 2, the outlet side pipe section 22 of casing 2 and air inlet
The water drain cavity 5 to be formed is surrounded between the outlet side 11 of pipe 1, is flowed out using the osculum 24 of the bottom of outlet side pipe section 22
Pipeline.Flow ceaselessly flows, until the water in pipeline is all discharged.
The automobile exhaust pipe accumulated water drainage device and exhaust pipe device of the utility model above-described embodiment, can be easily
Ponding is discharged except exhaust pipe, the problem of ponding causes exhaust pipe corrosion and engine that can not start is avoided, also avoids
The problem of routine use inconvenience caused by exhaust pipe freezes.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (8)
1. a kind of automobile exhaust pipe accumulated water drainage device, which is characterized in that including air inlet pipe, casing and escape pipe, described sleeve pipe
Including air inlet side pipeline section, outlet side pipe section and the transitional pipe segment being connected between the air inlet side pipeline section and outlet side pipe section, institute
The outlet side that air inlet side pipeline section is sleeved on the air inlet pipe is stated, the outlet side pipe section is sleeved on the inlet end of the escape pipe,
The internal diameter of the air inlet side pipeline section is less than the internal diameter of the outlet side pipe section, and described sleeve pipe is stretched into the outlet side of the air inlet pipe,
The outlet side of the air inlet pipe is opposite with the inlet end interval of the escape pipe to form gap, the coupling tube between
Section, outlet side pipe section and the air inlet pipe outlet side between surround to form a water drain cavity, the rear end of the water drain cavity with
The gap communicates, and the bottom of the outlet side pipe section is provided with the osculum for being communicated in the water drain cavity and outside atmosphere,
The osculum is located at the lowest point of the automobile exhaust pipe accumulated water drainage device.
2. automobile exhaust pipe accumulated water drainage device according to claim 1, which is characterized in that the air inlet side pipeline section and go out
Gas side pipeline section is straight pipe section.
3. automobile exhaust pipe accumulated water drainage device according to claim 1, which is characterized in that the transitional pipe segment is taper
Pipeline section.
4. automobile exhaust pipe accumulated water drainage device according to claim 3, which is characterized in that the escape pipe is located at it
Pipeline section after inlet end is formed as the straight pipe section of escape pipe, and the outlet side of the air inlet pipe is straight pipe section, the escape pipe
Straight pipe section is identical as the internal diameter of the outlet side of the air inlet pipe.
5. automobile exhaust pipe accumulated water drainage device according to claim 4, which is characterized in that the inlet end of the escape pipe
Including connecting straight pipe section and transition taper pipeline section, the transition taper pipeline section be connected to the straight pipe section of connection with it is described go out
Between the straight pipe section of tracheae, the internal diameter of the straight pipe section of connection is more than the internal diameter of the straight pipe section of the escape pipe, the outlet
Side pipe section is sleeved in the straight pipe section of connection.
6. automobile exhaust pipe accumulated water drainage device according to claim 4, which is characterized in that the gap is greater than or equal to
3mm。
7. according to the automobile exhaust pipe accumulated water drainage device described in claim 1-6 any one, which is characterized in that the automobile
Exhaust pipe accumulated water drainage device further includes cylindrical gauze pad, and the inner ring of the gauze pad is sleeved on the outlet of the air inlet pipe
End, the outer ring of the gauze pad are contacted with the inner wall of the outlet side pipe section, and the rear end of the water drain cavity passes through on the gauze pad
The mesh opened up is connected to the gap.
8. automobile exhaust pipe accumulated water drainage device according to claim 7, which is characterized in that the gauze pad is located at the row
In water chamber, the rear end of the gauze pad is concordant with the end face of the outlet side of the air inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820016420.2U CN207795368U (en) | 2018-01-02 | 2018-01-02 | Automobile exhaust pipe accumulated water drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820016420.2U CN207795368U (en) | 2018-01-02 | 2018-01-02 | Automobile exhaust pipe accumulated water drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207795368U true CN207795368U (en) | 2018-08-31 |
Family
ID=63277455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820016420.2U Active CN207795368U (en) | 2018-01-02 | 2018-01-02 | Automobile exhaust pipe accumulated water drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207795368U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803545A (en) * | 2021-10-29 | 2021-12-17 | 中船黄埔文冲船舶有限公司 | Drainage device for exhaust pipe |
| CN114060134A (en) * | 2021-12-15 | 2022-02-18 | 东风汽车集团股份有限公司 | Vehicle exhaust equipment and exhaust control method |
-
2018
- 2018-01-02 CN CN201820016420.2U patent/CN207795368U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803545A (en) * | 2021-10-29 | 2021-12-17 | 中船黄埔文冲船舶有限公司 | Drainage device for exhaust pipe |
| CN114060134A (en) * | 2021-12-15 | 2022-02-18 | 东风汽车集团股份有限公司 | Vehicle exhaust equipment and exhaust control method |
| CN114060134B (en) * | 2021-12-15 | 2022-09-09 | 东风汽车集团股份有限公司 | Vehicle exhaust equipment and exhaust control method |
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