CN216111063U - Engine rear end intake pipe - Google Patents
Engine rear end intake pipe Download PDFInfo
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- CN216111063U CN216111063U CN202122383506.3U CN202122383506U CN216111063U CN 216111063 U CN216111063 U CN 216111063U CN 202122383506 U CN202122383506 U CN 202122383506U CN 216111063 U CN216111063 U CN 216111063U
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- air inlet
- distribution section
- pipe
- rear end
- air
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Abstract
The utility model discloses an air inlet pipe at the rear end of an engine, which comprises an air inlet pipe body, wherein the air inlet pipe body consists of an air inlet distribution section and an air inlet bent pipe; the main body of the air inlet distribution section is of a straight cylinder structure, one end of the air inlet distribution section is provided with a connecting bent pipe, and the connecting bent pipe is connected with the air inlet bent pipe; the air inlet distribution section is connected with the air inlet bent pipe to form 180-degree arc bending; and the rear side of the main body of the air inlet distribution section is provided with four air cylinder air inlet interfaces. The utility model has the advantages of simple structure, uniform air intake, convenient assembly, good reliability and the like.
Description
Technical Field
The utility model relates to the technical field of diesel engine air inlet pipes, in particular to an air inlet pipe at the rear end of an engine.
Background
The diesel engine intake pipe is an air pipe for introducing gas required for engine combustion into the engine, and distributes air (diesel engine) relatively uniformly to each cylinder. For multi-cylinder engines, the existing technical scheme mostly adopts an intake manifold, the intake manifold is positioned between a throttle valve and an engine intake valve, so the manifold is called, air enters the throttle valve and is buffered by the manifold, an air flow channel is branched, if four cylinders exist in a four-cylinder engine and five cylinders exist in a five-cylinder engine, the air is respectively introduced into each cylinder. However, the scheme is high in preparation cost, and meanwhile, the assembly process is not simple, so that the working efficiency is influenced. Therefore, it is necessary to design a rear end air inlet pipe with good buffering effect, uniform distribution, simple assembly and high working efficiency.
Disclosure of Invention
Aiming at the technical problems, the utility model provides the air inlet pipe at the rear end of the engine, which has good buffering effect and uniform distribution.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an air inlet pipe at the rear end of an engine comprises an air inlet pipe body, wherein the air inlet pipe body consists of an air inlet distribution section and an air inlet bent pipe; the main body of the air inlet distribution section is of a straight cylinder structure, one end of the air inlet distribution section is provided with a connecting bent pipe, and the connecting bent pipe is connected with the air inlet bent pipe; the air inlet distribution section is connected with the air inlet bent pipe to form 180-degree arc bending; and the rear side of the main body of the air inlet distribution section is provided with four air cylinder air inlet interfaces.
Further, the cross section of the inner cavity of the main body of the air inlet distribution section is of a rectangular structure.
Furthermore, the connection elbow and the air inlet elbow are detachably connected through a flange.
Furthermore, the tail end of the main body of the air inlet distribution section is processed by adopting inclined plane folding processing.
Further, a vibration damping joint boss is arranged at the air inlet interface of the air cylinder; and two diagonal positions of the air inlet interface of the air cylinder are respectively provided with a tightening screw hole column.
Furthermore, the front side of the main body of the air inlet distribution section is provided with a high-pressure common-rail pipe elliptical mounting table, and the high-pressure common-rail pipe elliptical mounting table is provided with a tightening screw hole.
Further, the main part front side of the distribution section that admits air is equipped with the firewood and strains the installing support, the firewood is strained the whole rectangle boss structure that is of installing support, and "protruding" font pit has been seted up at its middle part, the upper left side and the upper right side of "protruding" font pit respectively are equipped with the fastening screw.
Furthermore, a throttle valve is connected to the air inlet end of the air inlet elbow.
Compared with the prior art, the utility model has the beneficial effects that:
(1) according to the utility model, the air inlet distribution section and the air inlet bent pipe are arranged, the 180-degree arc bending design is adopted for buffering, the cross section of the inner cavity of the main body of the air inlet distribution section is designed into a rectangular structure in a matching manner, then the air inlet end of the air inlet bent pipe is connected with the air throttle (namely the air throttle is designed near the 180-degree turning position), and finally, the four air cylinder air inlet interfaces directly arranged on the air inlet distribution section are used for carrying out balanced and stable air supply, and the reliability is good. Meanwhile, the structure is simple, and the preparation cost is low.
(2) Be equipped with the oval mount table of high pressure common rail pipe, through adopting oval boss design, not only save the cost of manufacture, realize simplifying the design, simultaneously, oval boss design can keep sufficient support steadiness to high pressure common rail pipe in engine operation process, prevents to appear the screw fracture because of the vibration.
(3) The firewood that is equipped with strains the erection support, and the structure is firm, strains the mounting bracket through being equipped with "protruding" font pit matching firewood, realizes limiting displacement, improves support stability, reasonable in design, and the assembly is simple and convenient, excellent in use effect.
Drawings
FIG. 1 is a schematic perspective view of the front side of the present invention;
FIG. 2 is a schematic perspective view of the rear side of the present invention;
FIG. 3 is a front elevational view of the present invention;
FIG. 4 is a longitudinal cut-away view of the present invention;
fig. 5 is a cross-sectional view of the present invention.
Detailed Description
As shown in fig. 1 to 5, an engine rear end intake pipe comprises an intake pipe body, wherein the intake pipe body is composed of an intake air distribution section 1 and an intake air bent pipe 2; the main body of the air inlet distribution section 1 is of a straight cylinder structure, one end of the air inlet distribution section is provided with a connecting bent pipe, and the connecting bent pipe is detachably connected with the air inlet bent pipe 2 through a flange; after the air inlet distribution section is connected with the air inlet bent pipe, 180-degree arc bending is formed, so that air inlet can be buffered; meanwhile, the air inlet end of the air inlet elbow 2 is connected with a throttle valve 3. And the rear side of the main body of the air inlet distribution section is provided with four air cylinder air inlet interfaces 9. The cross section 1-2 of the inner cavity of the main body of the air inlet distribution section is of a rectangular structure, and the rectangular structure is adopted instead of the traditional circular tube structure, so that the improvement of four cylinders is facilitated
Uniformity of air intake distribution at the air intake interface. The tail end 1-1 of the main body of the air inlet distribution section is processed by adopting inclined plane folding processing. A vibration damping joint boss 12 is arranged at the air inlet interface of the air cylinder; two diagonal positions of the air inlet interface of the air cylinder are respectively provided with a first tightening screw hole column 10 and a second tightening screw hole column 11, so that the stability of tightening and fixing is improved. The air inlet distribution section is characterized in that a high-pressure common-rail pipe elliptical mounting table 7 is arranged on the front side of a main body of the air inlet distribution section, and a tightening screw hole is formed in the high-pressure common-rail pipe elliptical mounting table. Of course several pre-tightening screw holes 8 may also be provided. The main part front side of distribution section admits air is equipped with firewood and strains erection support 6, the whole 6 of firewood straining erection support is rectangle boss structure, and "protruding" font pit has been seted up at its middle part, the upper left side and the upper right side of "protruding" font pit respectively are equipped with the fastening screw.
Claims (8)
1. An engine rear end intake pipe, its characterized in that: the air inlet pipe comprises an air inlet pipe body, wherein the air inlet pipe body consists of an air inlet distribution section and an air inlet bent pipe; the main body of the air inlet distribution section is of a straight cylinder structure, one end of the air inlet distribution section is provided with a connecting bent pipe, and the connecting bent pipe is connected with the air inlet bent pipe; the air inlet distribution section is connected with the air inlet bent pipe to form 180-degree arc bending; and the rear side of the main body of the air inlet distribution section is provided with four air cylinder air inlet interfaces.
2. An engine rear end intake pipe according to claim 1, characterized in that: the cross section of the inner cavity of the main body of the air inlet distribution section is of a rectangular structure.
3. An engine rear end intake pipe according to claim 1, characterized in that: the connecting bent pipe and the air inlet bent pipe are detachably connected through a flange.
4. An engine rear end intake pipe according to claim 1, characterized in that: the tail end of the main body of the air inlet distribution section is processed by adopting inclined plane folding processing.
5. An engine rear end intake pipe according to claim 1, characterized in that: a vibration damping attaching boss is arranged at the air inlet interface of the air cylinder; and two diagonal positions of the air inlet interface of the air cylinder are respectively provided with a tightening screw hole column.
6. An engine rear end intake pipe according to claim 1, characterized in that: the air inlet distribution section is characterized in that a high-pressure common-rail pipe elliptical mounting table is arranged on the front side of a main body of the air inlet distribution section, and a tightening screw hole is formed in the high-pressure common-rail pipe elliptical mounting table.
7. An engine rear end intake pipe according to claim 1, characterized in that: the main part front side of the distribution section that admits air is equipped with firewood and strains the erection support, firewood is strained the whole rectangle boss structure that is of erection support, and "protruding" font pit has been seted up at its middle part, the upper left side and the upper right side of "protruding" font pit respectively are equipped with the fastening screw.
8. An engine rear end intake pipe according to claim 1, characterized in that: and the air inlet end of the air inlet bent pipe is connected with a throttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122383506.3U CN216111063U (en) | 2021-09-29 | 2021-09-29 | Engine rear end intake pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122383506.3U CN216111063U (en) | 2021-09-29 | 2021-09-29 | Engine rear end intake pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216111063U true CN216111063U (en) | 2022-03-22 |
Family
ID=80690134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122383506.3U Active CN216111063U (en) | 2021-09-29 | 2021-09-29 | Engine rear end intake pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216111063U (en) |
-
2021
- 2021-09-29 CN CN202122383506.3U patent/CN216111063U/en active Active
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