CN103195550A - Diesel engine high temperature gas seal structure - Google Patents
Diesel engine high temperature gas seal structure Download PDFInfo
- Publication number
- CN103195550A CN103195550A CN201310087026XA CN201310087026A CN103195550A CN 103195550 A CN103195550 A CN 103195550A CN 201310087026X A CN201310087026X A CN 201310087026XA CN 201310087026 A CN201310087026 A CN 201310087026A CN 103195550 A CN103195550 A CN 103195550A
- Authority
- CN
- China
- Prior art keywords
- high temperature
- diesel engine
- intubate
- temperature gas
- seal structure
- 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.)
- Granted
Links
Images
Landscapes
- Gasket Seals (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention relates to a diesel engine high temperature gas seal structure which comprises an upper exhaust pipe section, an intubation tube, a lower exhaust pipe section and sealing rings. The seal structure can realize high gas seal with parts as few as possible and improve the reliability of high temperature gas seal to further improve the work reliability of a vehicle.
Description
Technical field
The invention belongs to Diesel Engine Technique Field, be specifically related to a kind of diesel engine high temperature gas seal structure.
Background technique
When diesel engine exhaust system was responsible for the waste gas behind the combustion in IC engine discharged, that is bearing the high temperature that constantly changes, high-pressure gas washed away and impact, the vibration of motor complete machine problems such as component easily deform, gas leakage.If gas leakage takes place vent systems, the lighter causes engine room to pollute, and catastrophe failure that weight person causes that engine room catches fire etc. causes immeasurable loss to car load.
General diesel engine high temperature gas seal structure comprises the exhaust pipeline section, intubate, and gas leakage takes place in the intubate seal ring structure of seal ring easily, can not satisfy special vehicle diesel engine high-temperature fuel gas sealing reliability.
Application (patent) number discloses a kind of engine exhaust pipe sealing configuration for the model utility of CN200720140461.4: comprise pipe end, pipeline section and transition tube, be to connect by inserting mode between pipe end, pipeline section and the transition tube, interior pipeline section at two sections outlet pipes of pegging graft is opened an annular groove, and packing in the groove two has the seal ring seal ring of radical elasticity.This model utility changes traditional one section outlet pipe of a cylinder into three cylinders one section, can greatly reduce exhaust gas leakage, and car load engine room environment is had greatly improved.
Special vehicle requires the high-temperature fuel gas sealing reliability, to reduce the probability that is hit in the fight, improves the battlefield survival of special vehicle, and general high temperature gas seal structure, sealing reliability is low, is difficult to satisfy the demand of special vehicle.
Summary of the invention
The present invention is directed to the defective that the diesel engine high-temperature fuel gas easily leaks, propose a kind of high temperature gas seal structure that satisfies the special vehicle demand.
The technical solution adopted in the present invention is: a kind of diesel engine high temperature gas seal structure, comprise exhaust pipeline section (1), intubate (2), following exhaust pipeline section (4), it is characterized in that: described on the airflow direction exhaust pipeline section (1) be transition fit with intubate (2), following exhaust pipeline section (4) is Spielpassung with intubate (2).
Beneficial effect of the present invention:
By adopting outlet pipe and intubate one end transition fit and the other end Spielpassung along airflow direction, can significantly reduce or avoid the vent systems high-temperature fuel gas to leak outside, improve vent systems sealability and complete machine functional reliability.
Description of drawings
Fig. 1 is a kind of diesel engine high temperature gas seal structure schematic representation.
The 1st, last exhaust pipeline section 2 is that intubate 3 is exhaust pipeline sections under seal ring 4 is
Embodiment
During the connection part of high-temperature fuel gas by outlet pipe and intubate, outlet pipe and intubate all can expanded by heating, if the thermal expansion coefficient of outlet pipe and intubate is different, high-temperature exhaust air then takes place easily to be leaked, preferred intubate material selection and last outlet pipe 1 and following outlet pipe 2 adopt same material, to guarantee that outlet pipe has identical thermal expansion coefficient with intubate.
The material of further preferred outlet pipe and intubate is middle silicon ferrite cast iron QTSi-4.6.
For further reducing leakage rate, improve sealing reliability, preferably design closure gasket groove in intubate, arrange seal ring in the closure gasket groove.
Preferably respectively design the two seals annular groove at the two ends of intubate.
The two-fold chip seal ring of preferred employing.
Seal ring breach in the preferred per pass closure gasket groove differs 180 ° of layouts.
Claims (7)
1. diesel engine high temperature gas seal structure, comprise exhaust pipeline section (1), intubate (2), following exhaust pipeline section (4), it is characterized in that: described on the airflow direction exhaust pipeline section (1) be transition fit with intubate (2), following exhaust pipeline section (4) is Spielpassung with intubate (2).
2. a kind of diesel engine high temperature gas seal structure according to claim 1 is characterized in that: intubate (2) is selected for use and last outlet pipe (1) and following outlet pipe (4) adopt same material.
3. a kind of diesel engine high temperature gas seal structure according to claim 2 is characterized in that: described intubate (2), the material of going up outlet pipe (1) and following outlet pipe (4) employing are middle silicon ferrite cast iron QTSi-4.6.
4. a kind of diesel engine high temperature gas seal structure according to claim 1, it is characterized in that: also comprise seal ring (3), described intubate has closure gasket groove on (2), and described seal ring (3) is contained on the closure gasket groove of intubate (2).
5. a kind of diesel engine high temperature gas seal structure according to claim 4, it is characterized in that: respectively there is the two seals annular groove at the two ends of described intubate (2).
6. a kind of diesel engine high temperature gas seal structure according to claim 4, it is characterized in that: described seal ring (3) is selected two-fold chip for use.
7. a kind of diesel engine high temperature gas seal structure according to claim 6, it is characterized in that: the seal ring breach in the described closure gasket groove differs 180 ° of layouts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310087026.XA CN103195550B (en) | 2013-03-19 | 2013-03-19 | A kind of diesel engine high temperature gas seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310087026.XA CN103195550B (en) | 2013-03-19 | 2013-03-19 | A kind of diesel engine high temperature gas seal structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103195550A true CN103195550A (en) | 2013-07-10 |
| CN103195550B CN103195550B (en) | 2016-04-06 |
Family
ID=48718319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310087026.XA Active CN103195550B (en) | 2013-03-19 | 2013-03-19 | A kind of diesel engine high temperature gas seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103195550B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819069A (en) * | 2015-03-27 | 2015-08-05 | 中国北方发动机研究所(天津) | Engine exhaust sealing structure |
| CN105370369A (en) * | 2015-11-30 | 2016-03-02 | 柳州市恒达动力机械制造有限公司 | Exhaust pipe snap ring type seal connecting piece |
| CN105508009A (en) * | 2015-12-30 | 2016-04-20 | 广西玉柴机器股份有限公司 | Sealing structure of engine exhausting pipe |
| CN115095727A (en) * | 2022-06-21 | 2022-09-23 | 中国北方发动机研究所(天津) | Combined sealing structure based on multistage flow damping |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545394A (en) * | 2016-12-08 | 2017-03-29 | 中国北方发动机研究所(天津) | A kind of adjustable diesel exhaust gas pipe connection |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007297985A (en) * | 2006-05-01 | 2007-11-15 | Yamaha Motor Co Ltd | Gas exhaust system and vehicle equipped with the gas exhaust system |
| CN201025103Y (en) * | 2007-03-14 | 2008-02-20 | 中国兵器工业集团第七○研究所 | Sealing structure for engine exhaust pipe |
| US20100038901A1 (en) * | 2008-08-14 | 2010-02-18 | Michael Paul Schmidt | Exhaust manifold to housing connection |
| CN201513226U (en) * | 2009-09-28 | 2010-06-23 | 重庆科瑞实业有限责任公司 | Connecting structure of autobike silencing tube and exhaust pipe |
| CN202431346U (en) * | 2012-01-05 | 2012-09-12 | 广西玉柴机器股份有限公司 | Connecting structure of engine exhaust system |
-
2013
- 2013-03-19 CN CN201310087026.XA patent/CN103195550B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007297985A (en) * | 2006-05-01 | 2007-11-15 | Yamaha Motor Co Ltd | Gas exhaust system and vehicle equipped with the gas exhaust system |
| CN201025103Y (en) * | 2007-03-14 | 2008-02-20 | 中国兵器工业集团第七○研究所 | Sealing structure for engine exhaust pipe |
| US20100038901A1 (en) * | 2008-08-14 | 2010-02-18 | Michael Paul Schmidt | Exhaust manifold to housing connection |
| CN201513226U (en) * | 2009-09-28 | 2010-06-23 | 重庆科瑞实业有限责任公司 | Connecting structure of autobike silencing tube and exhaust pipe |
| CN202431346U (en) * | 2012-01-05 | 2012-09-12 | 广西玉柴机器股份有限公司 | Connecting structure of engine exhaust system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819069A (en) * | 2015-03-27 | 2015-08-05 | 中国北方发动机研究所(天津) | Engine exhaust sealing structure |
| CN105370369A (en) * | 2015-11-30 | 2016-03-02 | 柳州市恒达动力机械制造有限公司 | Exhaust pipe snap ring type seal connecting piece |
| CN105508009A (en) * | 2015-12-30 | 2016-04-20 | 广西玉柴机器股份有限公司 | Sealing structure of engine exhausting pipe |
| CN115095727A (en) * | 2022-06-21 | 2022-09-23 | 中国北方发动机研究所(天津) | Combined sealing structure based on multistage flow damping |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103195550B (en) | 2016-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103195550B (en) | A kind of diesel engine high temperature gas seal structure | |
| CN203856559U (en) | Segmented exhaust pipe interface sealing structure | |
| CN204421590U (en) | A kind of rotary kiln Novel kiln head labyrinth gland | |
| CN102459843A (en) | Multi-stage turbocharger arrangement | |
| CN202431346U (en) | Connecting structure of engine exhaust system | |
| CN104327426A (en) | Fluorine rubber formula capable of being spliced with silicone rubber | |
| CN106662277A (en) | Pipe unit in a conduit for a gaseous medium | |
| CN204567280U (en) | Automotive oil tank | |
| CN206035619U (en) | Turbocharged blast pipe, turbocharged system and car | |
| CN201025103Y (en) | Sealing structure for engine exhaust pipe | |
| CN204572295U (en) | A kind of discharger of gas engine internal leakage combustion gas | |
| CN207761734U (en) | Pipe fitting and diesel engine | |
| CN207701185U (en) | Turbo-generator Set gland-packing leakage system | |
| CN208364203U (en) | crankcase ventilation pipeline | |
| CN206329403U (en) | A kind of cylinder cap of integrated PCV passage | |
| CN202900450U (en) | Waste gas taking pipe for diesel waste gas recirculation engine | |
| CN204986184U (en) | Expansion joint | |
| CN203906227U (en) | Device for recycling air leaked from filler of compressor | |
| CN204200305U (en) | A kind of two-way air vent valve of gas handling system band closure multi-cylinder engine crankcase | |
| CN204986953U (en) | Steam silencer prevent expend with heat and contract with cold structure | |
| CN204897384U (en) | Oiling machine ejection oil outlet structure | |
| CN202578959U (en) | Multiple grating-type preheater sectional preheating air inlet system of diesel engine | |
| CN202431400U (en) | Assembly part of exhaust air inlet pipe | |
| CN211950645U (en) | Gas engine exhaust pipe sealing structure | |
| CN210802823U (en) | Pressure pipeline airtightness detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Lianchun Inventor after: Wang Zengquan Inventor after: Zhang Guozheng Inventor after: Cui Yanjun Inventor after: Niu Jun Inventor after: Yao Chunlei Inventor after: Song Haitao Inventor before: Wang Zengquan Inventor before: Wang Lianchun Inventor before: Zhang Guozheng Inventor before: Cui Yanjun Inventor before: Niu Jun |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |