CN201021283Y - Exhausting device for internal combustion engine - Google Patents
Exhausting device for internal combustion engine Download PDFInfo
- Publication number
- CN201021283Y CN201021283Y CNU2006201657558U CN200620165755U CN201021283Y CN 201021283 Y CN201021283 Y CN 201021283Y CN U2006201657558 U CNU2006201657558 U CN U2006201657558U CN 200620165755 U CN200620165755 U CN 200620165755U CN 201021283 Y CN201021283 Y CN 201021283Y
- Authority
- CN
- China
- Prior art keywords
- top cover
- straight tube
- diesel locomotive
- tube
- car body
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a diesel locomotive air discharging device, which comprises a straight tube, a fume discharging top cover and a fume guiding tube, wherein the straight tube is firmly connected with the air discharging opening of the diesel locomotive, the fume guiding tube is suited at the circumferential of the fume discharging top cover, and is connected with the top cover of the diesel locomotive. The fume discharging top cover is fixed on the top cover of the diesel locomotive, a certain gap is kept between the outer wall of the straight tube top cover and the diesel locomotive top cover, also the fume discharging top cover. A circle of rain pouring groove is arranged on the fume guiding tube, and a seal device is arranged below the diesel locomotive top cover. The seal device has an outer tube, an air expanding space is formed between the outer tube and the outer wall of the straight tube, and a labyrinth type air current channel formed by two L shaped separated plates which have corresponding and alternate permutation, the outer wall of the straight tube and the inner wall of the outer tube are arranged below the air expanding space. The utility model adopts an external water drainage structure, a non-contacting method is adopted between the fume discharging top cover and the straight tube, thus the request of the assembly concentricity is decreased, in addition, the waste gas reflow is effectively prevented by adopting the special seal device.
Description
Technical field
The utility model relates to a kind of exhaust gear, particularly a kind of outer draining that is used for diesel locomotive, mazy exhaust gear.
Background technology
The exhaust gear of the oil-electric engine group that at present domestic and international locomotive, motor-car, generator car and hermetic type mobile power station are used mostly adopts two kinds of structures.A kind of structure is an internal drainage, the rigid connecting mode of employing between smoke evacuation overhead guard and the straight tube that is connected the generator set exhausr port, and sealing is the employing packing seal.Second kind of structure is outer draining, also adopts rigid connecting mode between smoke evacuation overhead guard and the straight tube.These two kinds of structures are destroyed owing to reasons such as vibration easily cause the connection place in the unit running process because the rigid connecting mode of employing is higher to the assembling concentricity requirement.For first kind of structure, the filler of sealing usefulness lost efficacy easily, and the interior drainage pipeline need be set specially; For second kind of structure, because weight is big, the end face moment of flexure that causes is big, influences reliability, and size and take up room also greatly, limited by vehicle gauge on locomotive, motor-car, generator car.
Summary of the invention
The utility model main purpose is to address the above problem and is not enough, and a kind of exhaust gear that is used for diesel locomotive is provided, and connects by adopting non-contact labyrinth, reduced the assembling concentricity requirement, and effectively prevent exhaust gas recirculation, by adopting outer draining mode, simplify structure of locomotive.
For achieving the above object, described diesel locomotive exhaust gear:
Comprise straight tube, the smoke evacuation overhead guard, smoke guiding tube, straight tube is captiveed joint with the exhausr port of combustion engine, and smoke guiding tube is enclosed within the periphery of smoke evacuation overhead guard, and is connected and fixed with the locomotive car body top cover.The car body top cover is passed at described straight tube top, and the smoke evacuation overhead guard is fixed on the car body top cover, all keeps certain interval between the outer wall at straight tube top and car body top cover and the smoke evacuation overhead guard, and the excircle along straight tube below the car body top cover is provided with a sealing arrangement.
Described sealing arrangement has a top and is fixed on urceolus on the car body top cover, form a gas expansion space between urceolus and the straight tube outer wall, a labyrinth type gas channel that is staggered by two " L " shape dividing plate correspondences and forms with straight tube outer wall and outer tube inner wall is set below the gas expansion space, a dividing plate is fixed on the urceolus, and another dividing plate is fixed on the straight tube.
Described smoke guiding tube is provided with a circle and lets out the rain groove.Described urceolus is the heat insulation barrel structure that an inside is filled with thermal insulation material.The top of described smoke evacuation overhead guard is provided with two movable attachment straps that can overlap mutually.
Content to sum up, the diesel locomotive exhaust gear that the utility model provides, adopt the not way of contact between smoke evacuation overhead guard and the straight tube, reduced the requirement of assembling concentricity, the destruction of the connection place that the vibration that has produced when having avoided owing to unit operation simultaneously causes is by adopting special sealing arrangement, effectively prevent exhaust gas recirculation, by adopting the outer discharge structure of letting out the rain groove is set on smoke guiding tube in addition, inner special delivery piping, the simplification structure of locomotive of no longer being provided with.
Description of drawings
The structural representation of Fig. 1 diesel locomotive exhaust gear.
As shown in Figure 1, straight tube 1, smoke evacuation overhead guard 2, smoke guiding tube 3, car body top cover 4, sealing arrangement 5, dividing plate 6, urceolus 7, gas expansion space 8, labyrinth type gas channel 9, movable attachment strap 10, thermal insulation material 11 is let out rain groove 12.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
As shown in Figure 1, described diesel locomotive exhaust gear comprises straight tube 1, smoke evacuation overhead guard 2, and smoke guiding tube 3, straight tube 1 is captiveed joint with the exhausr port of combustion engine, and smoke guiding tube 3 is enclosed within the periphery of smoke evacuation overhead guard 2, and is connected and fixed with diesel locomotive car body top cover 4.
Car body top cover 4 is passed at described straight tube 1 top, smoke evacuation overhead guard 2 is fixed on the car body top cover 4, all keep certain interval between the outer wall at straight tube 1 top and car body top cover 4 and the smoke evacuation overhead guard 2, adopt this not way of contact to connect, reduced the requirement of assembling concentricity, the destruction of the connection place that the vibration that has produced when having avoided owing to unit operation simultaneously causes.Smoke evacuation overhead guard 2 flare shape structures, the lower end is fixed on the car body top cover 4, the upper end round mouth is corresponding with the air extractor duct on straight tube 1 top, normally move at combustion engine, when the air-flow that exhausr port is discharged reaches certain speed, gap location between smoke evacuation overhead guard 2 and straight tube 1 top forms vacuum state, plays the leak free effect, and the waste gas of discharge can not be back to locomotive inside by the gap.
When diesel locomotive just starts, the exhaust gas velocity that exhausr port is discharged is lower, the attachment strap that is in the exhausr port position also fails to open, this moment, waste gas was backed locomotive inside from the gap between smoke evacuation overhead guard 2 and the straight tube 1 easily, for preventing exhaust gas recirculation, excircle along straight tube 1 below car body top cover 4 is provided with a sealing arrangement 5, sealing arrangement 5 has a top and is fixed on urceolus 7 on the car body top cover 4, form a gas expansion space 8 between urceolus 7 and straight tube 1 outer wall, a labyrinth type gas channel 9 that is staggered by two " L " shape dividing plate 6 correspondences and forms with straight tube 1 outer wall and urceolus 7 inwalls is set below gas expansion space 8, this labyrinth type gas channel 9 has three layers, one end of a dividing plate 6 is weldingly fixed on the urceolus 7, and an end of another dividing plate 6 is weldingly fixed on the straight tube 1.When waste gas during by the gap between smoke evacuation overhead guard 2 and the straight tube 1, air-flow velocity can increase to some extent, after entering gas expansion space 8, because the space increases suddenly, the speed of air-flow will reduce suddenly, be converted into potential energy by kinetic energy, air-flow is again when being positioned at three layers of labyrinth type gas channel 9 of 8 belows, gas expansion space, because the variation in space, kinetic energy will all be converted into potential energy, in the exit of gas channel 9, the speed of air-flow is almost 0, so just played a leak free effect, spillage is reduced to a minimum, assurance waste gas can not backed locomotive inside.Just can effectively prevent exhaust gas recirculation by adjusting the distance between straight tube 1 and the urceolus 7 and the gap of three layers of labyrinth type gas channel 9.
Smoke guiding tube 3 is provided with a circle and lets out rain groove 12, and the rainwater that collection is deposited in the smoke guiding tube 3 is just let out rain groove 12 by this and discharged, the outer discharge structure of this kind, and inside can no longer be provided with special delivery piping, simplifies structure of locomotive.
Described urceolus 7 is the heat insulation barrel structure that an inside is filled with thermal insulation material 11, and thermal insulation material 11 generally can adopt asbestos.The top of described smoke evacuation overhead guard 2 is provided with two movable attachment straps 10 that can overlap mutually, and when diesel locomotive normally moved, the air-flow of discharge can back down two attachment straps 10, directly is discharged to outdoor.
As mentioned above, given in conjunction with the accompanying drawings and embodiments scheme content can derive the similar techniques scheme.In every case be the content that does not break away from technical solutions of the utility model, to any simple modification, equivalent variations and modification that above embodiment did, all still belong to the scope of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (6)
1. a diesel locomotive exhaust gear comprises straight tube (1), smoke evacuation overhead guard (2), smoke guiding tube (3), described straight tube (1) is captiveed joint with the exhausr port of combustion engine, and described smoke guiding tube (3) is enclosed within the periphery of smoke evacuation overhead guard (2), and be connected and fixed with car body top cover (4), it is characterized in that:
Car body top cover (4) is passed at described straight tube (1) top, and described smoke evacuation overhead guard (2) is fixed on the car body top cover (4), all keeps certain interval between the outer wall at straight tube (1) top and car body top cover (4) and the smoke evacuation overhead guard (2);
The below of described car body top cover (4) is provided with a sealing arrangement (5) along the excircle of straight tube (1).
2. diesel locomotive exhaust gear according to claim 1, it is characterized in that: described sealing arrangement (5) has a top and is fixed on urceolus (7) on the car body top cover (4), form a gas expansion space (8) between urceolus (7) and described straight tube (1) outer wall, the below of described gas expansion space (8) is provided with a labyrinth type gas channel (9).
3. diesel locomotive exhaust gear according to claim 2, it is characterized in that: described labyrinth type gas channel (9) is staggered by two " L " shape dividing plates (6) correspondence and forms with straight tube (1) outer wall and urceolus (7) inwall, a dividing plate (6) is fixed on the described urceolus (7), and another dividing plate (6) is fixed on the described straight tube (1).
4. diesel locomotive exhaust gear according to claim 1 is characterized in that: described smoke guiding tube (3) is provided with a circle and lets out rain groove (12).
5. according to claim 2 or 3 described diesel locomotive exhaust gears, it is characterized in that: described urceolus (7) is the heat insulation barrel structure that an inside is filled with thermal insulation material (11).
6. diesel locomotive exhaust gear according to claim 5 is characterized in that: the top of described smoke evacuation overhead guard (2) is provided with two movable attachment straps (10) that can overlap mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201657558U CN201021283Y (en) | 2006-12-08 | 2006-12-08 | Exhausting device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201657558U CN201021283Y (en) | 2006-12-08 | 2006-12-08 | Exhausting device for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201021283Y true CN201021283Y (en) | 2008-02-13 |
Family
ID=39088696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201657558U Expired - Lifetime CN201021283Y (en) | 2006-12-08 | 2006-12-08 | Exhausting device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201021283Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103625490A (en) * | 2013-06-26 | 2014-03-12 | 南车青岛四方机车车辆股份有限公司 | Ventilator for generator car |
| CN106439298A (en) * | 2016-11-21 | 2017-02-22 | 北京航天发射技术研究所 | Air duct sealed docking device |
| CN114162156A (en) * | 2021-11-15 | 2022-03-11 | 中车唐山机车车辆有限公司 | Intercooler exhaust window for vehicle |
-
2006
- 2006-12-08 CN CNU2006201657558U patent/CN201021283Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103625490A (en) * | 2013-06-26 | 2014-03-12 | 南车青岛四方机车车辆股份有限公司 | Ventilator for generator car |
| CN103625490B (en) * | 2013-06-26 | 2016-04-20 | 中车青岛四方机车车辆股份有限公司 | A kind of ventilator for generator car |
| CN106439298A (en) * | 2016-11-21 | 2017-02-22 | 北京航天发射技术研究所 | Air duct sealed docking device |
| CN106439298B (en) * | 2016-11-21 | 2019-08-30 | 北京航天发射技术研究所 | Air duct seals docking facilities |
| CN114162156A (en) * | 2021-11-15 | 2022-03-11 | 中车唐山机车车辆有限公司 | Intercooler exhaust window for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CSR, QINGDAO SIFANG RAILWAY CO., LTD. Free format text: FORMER NAME: CSR SIFANG RAILWAY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Qingdao, Chengyang District, Shandong City, Hong Hu Zhen, zip code: 266111 Patentee after: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. Address before: Qingdao, Chengyang District, Shandong City, Hong Hu Zhen, zip code: 266111 Patentee before: CSR Sifang Locomotive and Rolling Stock Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080213 |
|
| EXPY | Termination of patent right or utility model |