CN107100711A - A kind of engine exhaust sealing structure and engine - Google Patents
A kind of engine exhaust sealing structure and engine Download PDFInfo
- Publication number
- CN107100711A CN107100711A CN201710243208.XA CN201710243208A CN107100711A CN 107100711 A CN107100711 A CN 107100711A CN 201710243208 A CN201710243208 A CN 201710243208A CN 107100711 A CN107100711 A CN 107100711A
- Authority
- CN
- China
- Prior art keywords
- annular groove
- sealing gasket
- exhaust
- heat
- flange
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1827—Sealings specially adapted for exhaust systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
A kind of engine exhaust sealing structure of present invention protection, including air discharging manifold flange and sealing gasket, set up heat-insulated annular groove, the annular groove internal diameter of the heat-insulated annular groove is more than exhaust manifold outlet aperture, less than sealing gasket air flue hole aperture on air discharging manifold flange.The design attitude of the heat-insulated annular groove, the booster sealing gasket that exhaust gas heat is delivered to from exhaust manifold tube wall along air discharging manifold flange outside heat-insulated annular groove can effectively be reduced, reduce booster sealing gasket thermic load, alleviate the decline of its intensity, so as to solve to deform caused leakage problem.
Description
Technical field
The invention belongs to automobile engine technical field of sealing technology, and in particular to be exhaust sealing structure.
Background technology
Engine exhaust end as shown in figure 1, be followed successively by exhaust manifold from top to bottom（1）, booster sealing gasket（2）, supercharging
Device（3）.Booster sealing gasket（2）Belong to metallic gasket, be assemblied in enmgine exhaust flange（11）With booster flange
（31）Between, seal from exhaust manifold（1）The high-temperature gas of discharge, operating ambient temperature is higher.Conventional booster is close at present
Packing（2）It is welded to form by three-layer metal sealing gasket, sealing gasket plane distribution has air flue hole（21）And bolt through-hole, air flue hole
（21）Surrounding position is designed with ring packing muscle（22）.
During work, under bolt axial force effect, sealed muscle（22）It is adjacent to by the compression recovery performance of metal material in itself
Air discharging manifold flange（11）And booster flange（31）, so as to reach sealing gas purpose, as shown in Figure 2.
Existing encapsulation scheme is simple in construction, gasket material cost is relatively low, sealing property is preferable, it is adaptable to middle low heat loads
Sealing, but for some huge discharges supercharging, direct fuel-injection engine, because delivery temperature is very high, the sealing gasket of original material can not
Meet and require, booster sealing gasket（2）Tensile strength declines after heated, in air discharging manifold flange（11）And booster flange（31）
Deformation is pullled under the frictional force effect that mutual displacement is produced, e.g., Fig. 3 illustrates, triangle straight flange is pullled as irregular curve, close
Seal muscle（22）It is forced to be displaced to outside sealed flange face and cause exhaust gas leakage.
The content of the invention
The present invention is in view of the above-mentioned problems, propose a kind of new engine exhaust sealing structure, and the structure can reduce booster
Sealing gasket thermic load, alleviate its intensity decline, so as to solve to deform caused leakage problem.
A kind of engine exhaust sealing structure of the present invention includes air discharging manifold flange, sealing gasket and booster flange, close
Packing is assemblied between enmgine exhaust flange and booster flange.In the case of other structures keep constant, in exhaust discrimination
Heat-insulated annular groove is set up on pipe flange, the annular groove internal diameter of the heat-insulated annular groove is more than exhaust manifold outlet aperture, less than sealing cushion steam
Road hole aperture.The design attitude of the heat-insulated annular groove, can effectively reduce exhaust gas heat from exhaust manifold tube wall along exhaust manifold method
Orchid is delivered to the booster sealing gasket outside heat-insulated annular groove, reduces booster sealing gasket thermic load, alleviates the decline of its intensity, so that
Solve leakage problem caused by deformation.
The present invention also further protects a kind of engine, and it includes the basic structure of available engine, and uses above
Engine exhaust sealing structure.
Brief description of the drawings
Fig. 1 is exhaust arrangement sketch at present;
Fig. 2 is current booster gasket structure schematic diagram；
Fig. 2A is Fig. 2 A-A profiles；
Fig. 3 is that current booster sealing gasket deforms schematic diagram；
Fig. 4 is exhaust manifold of the present invention and booster sealing structure cut away view.
In figure：1- exhaust manifolds, 11- air discharging manifold flanges, the heat-insulated annular grooves of 12-, 121- annular grooves internal diameter, 13- exhaust manifolds
Outlet aperture, 2- sealing gaskets, 21- air flues hole, 211- air flues hole aperture, 22- sealed muscles, 3- boosters, 31- booster flanges.
Embodiment
The structure of the present invention is further illustrated below in conjunction with accompanying drawing：
Referring to Fig. 4, engine exhaust sealing structure includes air discharging manifold flange（11）, sealing gasket（2）And booster flange（31）.
Sealing gasket（2）It is assemblied in enmgine exhaust flange（11）With booster flange（31）Between.It is more occurred frequently to solve thermic load
Motivation booster sealing gasket（2）Temperature distortion leakage problem, the present invention is in air discharging manifold flange（11）One heat insulation loop of upper increase
Groove（12）, the heat-insulated annular groove（12）Annular groove internal diameter（121）More than exhaust manifold outlet aperture（13）, and less than sealing gasket
（2）Sealing gasket air flue hole aperture（211）.
Heat-insulated annular groove（12）Exhaust gas heat can effectively be reduced from exhaust manifold tube wall along air discharging manifold flange（11）Transmission
To heat-insulated annular groove（4）Outside booster sealing gasket（2）, sealing gasket temperature is reduced, it is kept certain intensity, so that increasing
Depressor sealing gasket（2）Can be indeformable under the effect of two side flange frictional force, it is to avoid exhaust gas leakage.
Claims (2)
1. a kind of engine exhaust sealing structure, including air discharging manifold flange（11）, sealing gasket（2）And booster flange（31）,
Sealing gasket（2）It is assemblied in enmgine exhaust flange（11）With booster flange（31）Between, it is characterised in that in exhaust discrimination
Pipe flange（11）It is provided with heat-insulated annular groove（12）, the heat-insulated annular groove（12）Annular groove internal diameter（121）More than exhaust manifold outlet
Aperture（13）, and less than sealing gasket（2）Sealing gasket air flue hole aperture（211）.
2. a kind of engine, it is characterised in that using the engine exhaust sealing structure described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243208.XA CN107100711A (en) | 2017-04-14 | 2017-04-14 | A kind of engine exhaust sealing structure and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243208.XA CN107100711A (en) | 2017-04-14 | 2017-04-14 | A kind of engine exhaust sealing structure and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107100711A true CN107100711A (en) | 2017-08-29 |
Family
ID=59675949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710243208.XA Pending CN107100711A (en) | 2017-04-14 | 2017-04-14 | A kind of engine exhaust sealing structure and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100711A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4676514A (en) * | 1985-09-04 | 1987-06-30 | Elring Dichtungswerke Gmbh | Combined intake-exhaust gasket for internal combustion engines |
| JP2000234516A (en) * | 1999-02-15 | 2000-08-29 | Kawasaki Heavy Ind Ltd | Exhaust pipe connecting structure for water-cooling type engine |
| US6293098B1 (en) * | 2000-08-29 | 2001-09-25 | George J. Coates | Method and apparatus for joining pressurized exhaust manifold sections |
| JP2004162682A (en) * | 2002-09-25 | 2004-06-10 | Toyota Motor Corp | Secondary air supply structure, method for manufacturing the same, exhaust manifold, and flange structure thereof |
| JP2008267183A (en) * | 2007-04-17 | 2008-11-06 | Nissan Motor Co Ltd | Cylinder head for engine |
| US20100132823A1 (en) * | 2005-05-10 | 2010-06-03 | Lennart Nordh | Insert tube and a system of insert tubes |
| CN105697118A (en) * | 2016-01-26 | 2016-06-22 | 重庆长安汽车股份有限公司 | Sealing structure of turbo-charged direct injection engine exhaust system |
-
2017
- 2017-04-14 CN CN201710243208.XA patent/CN107100711A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4676514A (en) * | 1985-09-04 | 1987-06-30 | Elring Dichtungswerke Gmbh | Combined intake-exhaust gasket for internal combustion engines |
| JP2000234516A (en) * | 1999-02-15 | 2000-08-29 | Kawasaki Heavy Ind Ltd | Exhaust pipe connecting structure for water-cooling type engine |
| US6293098B1 (en) * | 2000-08-29 | 2001-09-25 | George J. Coates | Method and apparatus for joining pressurized exhaust manifold sections |
| JP2004162682A (en) * | 2002-09-25 | 2004-06-10 | Toyota Motor Corp | Secondary air supply structure, method for manufacturing the same, exhaust manifold, and flange structure thereof |
| US20100132823A1 (en) * | 2005-05-10 | 2010-06-03 | Lennart Nordh | Insert tube and a system of insert tubes |
| JP2008267183A (en) * | 2007-04-17 | 2008-11-06 | Nissan Motor Co Ltd | Cylinder head for engine |
| CN105697118A (en) * | 2016-01-26 | 2016-06-22 | 重庆长安汽车股份有限公司 | Sealing structure of turbo-charged direct injection engine exhaust system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |
|
| RJ01 | Rejection of invention patent application after publication |