CN202756070U - Flexible connection structure of exhaust system of diesel engine - Google Patents
Flexible connection structure of exhaust system of diesel engine Download PDFInfo
- Publication number
- CN202756070U CN202756070U CN 201220344924 CN201220344924U CN202756070U CN 202756070 U CN202756070 U CN 202756070U CN 201220344924 CN201220344924 CN 201220344924 CN 201220344924 U CN201220344924 U CN 201220344924U CN 202756070 U CN202756070 U CN 202756070U
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- exhaust
- exhaust system
- diesel engine
- booster
- pipe
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Abstract
The utility model relates to a flexible connection structure of an exhaust system of a diesel engine. The flexible connection structure of the exhaust system of the diesel engine comprises a booster, and an exhaust bending pipe, and is characterized in that the booster is connected with the exhaust bending pipe through a connection pipe, two ends of the connection pipe are respectively provided with a connection sphere, and connection structures of a connector plane and a connector sphere are respectively used between the booster and the connection pipe, and between the connection pipe and the exhaust bending pipe. The flexible connection structure of the exhaust system of the diesel engine has the advantages of increasing installation adjustment amount, being convenient to install, lowering machining difficulty and accuracy, and lowering manufacturing cost. Thermal stress is reduced by automatically adjusting the relative position of the booster and the exhaust bending pipe, the thermal deformation caused when the exhaust system works in a high-temperature environment is released, fatigue damage which is generated under a chilling and hot heat-circulation condition and results in crack failure of the exhaust system, especially an exhaust manifold is avoided, and the sealing performance when the relative position of the booster and the exhaust bending pipe is adjusted is guaranteed at the same time.
Description
Technical field
The utility model belongs to diesel engine manufacturing technology field, particularly relates to a kind of diesel engine exhaust system flexible connecting structure.
Background technique
The vent systems of diesel engine generally is comprised of component such as gas exhaust manifold, pressurized machine, exhaust elbow, Cat Catalytic Converter (three-element catalytic), bafflers, it is the main heating system of motor, the working heat load is large, and ocsillator strenght is high, and working environment is extremely abominable.Traditional pressurized machine and exhaust elbow adopt common being rigidly connected, flange for example, and T-shaped clips etc. are because vent systems relates to a plurality of parts.For the ease of exhaust elbow support (main support Full Vehicle System gas exhaust piping) is installed, not only need to improve machining accuracy, increase manufacture cost, and when motor in when normal operation, exhaust manifold temperature can reach 650 ℃, owing to being subjected to the constraint of rigid connection structure, the thermal distortion that produces can not finely discharge, therefore vent systems especially gas exhaust manifold can produce very large thermal stress, under the thermal cycle conditions of chilling and shock heating slowly fatigue ruption can occur, cause gas exhaust manifold fracture defect to occur, and then shortened the working life of vent systems.
Summary of the invention
But the utility model for solve the technical problem that exists in the known technology provide a kind of be convenient to install regulate and high temperature under reduce thermal stress, prolong the vent systems diesel engine exhaust system flexible connecting structure in working life by automatic adjusting relative position.
The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
The diesel engine exhaust system flexible connecting structure, comprise pressurized machine, exhaust elbow, it is characterized in that: described pressurized machine is connected with exhaust elbow by connecting tube, the two ends of described connecting tube all are shaped with the connection sphere, adopt joint plane and joint spherical surface connecting structure between described pressurized machine and connecting tube, connecting tube and the exhaust elbow.
The utility model can also adopt following technological scheme:
Also be shaped with the support that is connected as a single entity with it on the described exhaust elbow.
Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, namely connect pressurized machine and exhaust elbow by connecting tube, adopt the joint plane to be connected with the joint sphere between pressurized machine and connecting tube, exhaust elbow and the connecting tube, the exhaust elbow position can be regulated by connecting tube during installation, so that the mounting hole centering on support mounting hole and the body, regulated quantity so not only is installed to be strengthened, is convenient to install, reduce difficulty of processing and precision, but also can reduce manufacture cost.Adopt between pressurized machine and the exhaust elbow and flexibly connect, relative position between pressurized machine and the exhaust elbow can be regulated, so the thermal distortion that vent systems produces when being in hot environment work can discharge, and then reduce thermal stress, avoid under the thermal cycle conditions of chilling and shock heating, fatigue ruption occuring, cause especially gas exhaust manifold fracture fault of vent systems, also can guarantee simultaneously the sealing when pressurized machine and exhaust elbow relative position are regulated.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model exhaust elbow;
Fig. 3 is the structural representation of the utility model connecting tube;
Fig. 4 is the structural representation of the utility model pressurized machine;
Fig. 5 is the A section enlarged view of Fig. 4.
Among the figure: 1, connecting tube; 1-1, joint sphere; 2, exhaust elbow; 2-1, exhaust elbow joint plane; 2-2, support; 3, pressurized machine; 3-1, pressurized machine joint plane.
Embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
See also Fig. 1-Fig. 5, the diesel engine exhaust system flexible connecting structure comprises pressurized machine 3, exhaust elbow 2, and described pressurized machine is connected with exhaust elbow 2 by connecting tube 1, also is shaped with the support 2-2 that is connected as a single entity with it on the described exhaust elbow.The two ends of described connecting tube all are shaped with and connect sphere 1-1, and the connecting end of described pressurized machine is shaped with pressurized machine joint plane 3-1, and the connecting end of described exhaust elbow is shaped with exhaust elbow joint plane 2-1.Described pressurized machine 3 gas inlet ends and gas exhaust manifold are bolted to connection (can regard an integral body as), the joint plane 3-1 of pressurized machine waste gas outlet side is connected sealing with the joint sphere 1-1 of connecting tube one end, and the joint sphere 1-1 of the described connecting tube the other end is connected sealing with exhaust elbow joint plane 2-1.Because connecting tube adopts sphere to be connected with pressurized machine, connecting tube with exhaust elbow, therefore they can rotate relatively, connecting tube inserts the difference of pressurized machine or the exhaust elbow degree of depth simultaneously, can regulate the relative distance of exhaust elbow and pressurized machine, therefore exhaust elbow and pressurized machine can be at its relative positions of all directions adjusted, in order to guarantee support 2-2 mounting hole and engine body mounting hole centering, be convenient to install.And when vent systems is at high temperature worked, exhaust elbow is fixed by support, when if the integral body that gas exhaust manifold and pressurized machine form produces deformation because of high temperature, can regulate by connecting tube rotation or connecting tube insertion depth the relative position of pressurized machine and exhaust elbow, the thermal stress that produces of avoiding being rigidly connected can't discharge.
Claims (2)
1. diesel engine exhaust system flexible connecting structure, comprise pressurized machine, exhaust elbow, it is characterized in that: described pressurized machine is connected with exhaust elbow by connecting tube, the two ends of described connecting tube all are shaped with the connection sphere, adopt joint plane and joint spherical surface connecting structure between described pressurized machine and connecting tube, connecting tube and the exhaust elbow.
2. diesel engine exhaust system flexible connecting structure according to claim 1 is characterized in that: also be shaped with the support that is connected as a single entity with it on the described exhaust elbow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220344924 CN202756070U (en) | 2012-07-17 | 2012-07-17 | Flexible connection structure of exhaust system of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220344924 CN202756070U (en) | 2012-07-17 | 2012-07-17 | Flexible connection structure of exhaust system of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756070U true CN202756070U (en) | 2013-02-27 |
Family
ID=47735257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220344924 Expired - Fee Related CN202756070U (en) | 2012-07-17 | 2012-07-17 | Flexible connection structure of exhaust system of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756070U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217046A (en) * | 2015-09-28 | 2016-01-06 | 湖北易瓦特科技股份有限公司 | There is the exhaust passage of flexible venting tube |
| CN105217048A (en) * | 2015-09-28 | 2016-01-06 | 湖北易瓦特科技股份有限公司 | There is the flexible exhaust passage of cooling system |
-
2012
- 2012-07-17 CN CN 201220344924 patent/CN202756070U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217046A (en) * | 2015-09-28 | 2016-01-06 | 湖北易瓦特科技股份有限公司 | There is the exhaust passage of flexible venting tube |
| CN105217048A (en) * | 2015-09-28 | 2016-01-06 | 湖北易瓦特科技股份有限公司 | There is the flexible exhaust passage of cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20140717 |
|
| EXPY | Termination of patent right or utility model |