CN220505486U - Grille, steady flow pipe and internal combustion engine - Google Patents
Grille, steady flow pipe and internal combustion engine Download PDFInfo
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- CN220505486U CN220505486U CN202323446391.3U CN202323446391U CN220505486U CN 220505486 U CN220505486 U CN 220505486U CN 202323446391 U CN202323446391 U CN 202323446391U CN 220505486 U CN220505486 U CN 220505486U
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 14
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 30
- 239000003381 stabilizer Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Abstract
The utility model discloses a grille, a steady flow pipe and an internal combustion engine, wherein the grille comprises: the first direction plate and the second direction plate are connected in a crossing manner to form a grid structure; the first direction plate and/or the second direction plate are/is plate members with gradually-expanded thickness from one side of the grid structure to the other side. By arranging the first and/or second directional plates as plates of graded thickness, the distance between the plates of graded thickness is thus varied, and channels of graded dimensions are formed between adjacent plates of graded thickness. The grille is applied to the flow stabilizing pipe, the thickness of the plate is increased along the air inlet direction, so that a channel which is gradually reduced along the air flow direction is formed between the adjacent plates, the air inlet effect can not be influenced by the gradually reduced channel, the speed of the air flow can be increased, and the air flow direction entering the flow stabilizing pipe is more stable.
Description
Technical Field
The utility model relates to the technical field of engines, in particular to a grille, a flow stabilizing pipe and an internal combustion engine.
Background
The MAF sensor in the automobile is an air flow sensor, also called an air flow meter; the device is a heat mode flow sensor, a heating chip is arranged in the heat mode flow sensor, and the chip is radiated to generate different temperature gradients under different flow rates (flows) and outputs frequency signals.
The MAF sensor is used for measuring air flow entering the engine, is arranged on an air bypass channel, provides a signal of the air flow to the engine ECU and controls the fuel injection quantity of the engine.
MAF sensors are widely used for controlling EGR (Exhaust Gas recirculation) of internal combustion engines, but because the MAF sensors have strict requirements on airflow fields, a steady flow pipe structure is arranged on an EGR system of the internal combustion engine for stabilizing airflow, so that the MAF sensor can measure more accurately.
The air inlet end of the steady flow pipe is provided with a grid so as to steady flow of the airflow field.
However, the current grid separator is a rectangular separator, and has poor steady flow effect on the airflow field.
Therefore, how to provide a grid to improve the steady flow effect on the airflow field is a technical problem to be solved by the skilled person.
Disclosure of Invention
In view of the above, the present utility model provides a grille to improve the steady flow effect on the airflow field. In addition, the utility model also provides a steady flow pipe and an internal combustion engine with the grid.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a grille, comprising:
the first direction plate and the second direction plate are connected in a crossing manner to form a grid structure;
the first direction plate and/or the second direction plate are/is plate members with gradually-expanded thickness from one side of the grid structure to the other side.
Preferably, in the above grid, the first direction plate and the second direction plate are both trapezoidal plates, and one end of the trapezoidal plate with smaller thickness is an arc surface.
Preferably, in the above grid, the cross sections of the first and second direction plates each include a bottom side, a top side, a first side and a second side,
the bottom edge is a plane, the top edge is an arc, the first side edge and the second side edge are inclined to the bottom edge, and the inclination angles of the first side edge and the second side edge relative to the bottom edge are the same.
Preferably, in the above grid, the first direction plate and the second direction plate both satisfy:
Cot（ɵ）=（D/2-R）/L，
wherein ɵ is the inclination angle of the first side edge relative to the bottom edge, D is the width of the bottom edge, R is the radius of the top edge, L is the height of the second side edge, and the heights of the first side edge and the second side edge are the same.
Preferably, in the above grid, the length D of the bottom edge is 0.6mm to 0.8mm.
Preferably, in the above grid, the length of the bottom edge of the first direction plate, the radius of the top edge of the first direction plate, and the height of the first direction plate are respectively the same as the length of the bottom edge of the second direction plate, the radius of the top edge of the second direction plate, and the height of the second direction plate.
Preferably, in the above grid, the distance between adjacent first direction plates and the distance between adjacent second direction plates are each 3.5mm-4.0mm.
Preferably, in the above-mentioned grille, a distance between adjacent first direction plates is equal to a distance between adjacent second direction plates.
The flow stabilizing pipe comprises a flow stabilizing pipe body and a grid, wherein the grid is fixed at the air inlet end of the flow stabilizing pipe body, and the grid is any one of the grids.
An internal combustion engine comprises a flow stabilizing pipe, wherein the flow stabilizing pipe is the flow stabilizing pipe.
The utility model discloses a grille, wherein a first direction plate and/or a second direction plate are/is arranged as plates with gradually changed thickness, so that the distance between the gradually changed thickness plates is changed, and a channel with gradually changed size is formed between the adjacent gradually changed thickness plates. The grille is applied to the flow stabilizing pipe, the thickness of the plate is increased along the air inlet direction, so that a channel which is gradually reduced along the air flow direction is formed between the adjacent plates, the air inlet effect can not be influenced by the gradually reduced channel, the speed of the air flow can be increased, and the air flow direction entering the flow stabilizing pipe is more stable.
In addition, the application also discloses a flow stabilizing pipe which comprises a grid, wherein the grid is the grid disclosed above, and therefore, the flow stabilizing pipe with the grid also has the technical effects.
In addition, the application also discloses an internal combustion engine which comprises the flow stabilizing pipe, wherein the flow stabilizing pipe is the flow stabilizing pipe disclosed by the application, and therefore, the internal combustion engine with the flow stabilizing pipe also has the technical effects.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a structure of a grille disclosed in an embodiment of the present application;
FIG. 2 is a front view of a first directional plate of the grille disclosed in an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a flow stabilizer disclosed in an embodiment of the present application;
fig. 4 is a cross-sectional view of a flow stabilizer tube disclosed in an embodiment of the present application.
Detailed Description
The utility model discloses a grille for improving the steady flow effect on an airflow field. In addition, the utility model also discloses a steady flow pipe and an internal combustion engine with the grid.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
As shown in fig. 1, a grille is disclosed herein, including a first direction plate 11 and a second direction plate 12, and the first direction plate 11 and the second direction plate 12 are arranged to intersect and are connected in a mesh structure.
In some embodiments, the first and second direction plates 11 and 12 are vertically arranged, and the lengths of the first and second direction plates 11 and 12 are set according to the positions where the gratings are installed to form gratings of different shapes, including but not limited to circular gratings or rectangular gratings, and are all within the protection range.
The first direction plate 11 and/or the second direction plate 12 are plates with gradually increased thickness from one side of the grid structure to the other side. I.e. the first direction plate 11 and/or the second direction plate 12 in the present application are not plate members of equal thickness.
By providing the first direction plate 11 and/or the second direction plate 12 as thickness graded plates, the distance between the thickness graded plates may be changed, and a channel of graded size may be formed between adjacent thickness graded plates. The grille is applied to the flow stabilizing tube, wherein the thickness of the plate is increased along the air inlet direction, so that a channel which is gradually reduced along the air flow direction is formed between the adjacent plate, the air inlet effect can not be influenced by the gradually reduced channel, the speed of the air flow can be increased, and the air flow direction entering the flow stabilizing tube is more stable.
In some embodiments, the first direction plate 11 and the second direction plate 12 are each provided as a plate member having a varying thickness.
As can be seen from fig. 2, the first direction plate 11 and the second direction plate 12 in the present application are both trapezoidal plates, and one end of the trapezoidal plate with smaller thickness is an arc surface. The first direction plate 11 and the second direction plate 12 are both arranged to be trapezoid plates in the application, the structure is simple, the flow guiding effect of the trapezoid structure is better, and the airflow can be guided.
By setting the ends of the first and second direction plates 11, 12 having smaller thicknesses as arc surfaces, the thicknesses of the first and second direction plates 11, 12 can be reduced, the influence on the intake air flow can be reduced, and the intake air flow can be guided.
In connection with the above description, the cross-sections of the first and second directional plates 11 and 12 in the present application each include a bottom edge 111, a top edge 112, a first side edge 113, and a second side edge 114, wherein fig. 2 is a cross-sectional view of the first directional plate 11.
Wherein the bottom edge 111 is a plane, the top edge 112 is a circular arc, the first side edge 113 and the second side edge 114 are inclined to the bottom edge 111, and the inclination angles of the first side edge 113 and the second side edge 114 relative to the bottom edge 111 are the same.
The cross-sectional shapes of the first and second direction plates 11 and 12 are disclosed herein, and it will be understood by those skilled in the art that the shapes of the first and second direction plates 11 and 12 may be set according to different needs, for example, the inclination angles of the first and second side edges 113 and 114 with respect to the bottom edge 111 are different, so long as the direction along one side of the grid structure to the other side is satisfied, and the first and second direction plates 11 and 12 are plates having gradually-expanding thicknesses.
The first and second direction plates 11 and 12 in the present application each satisfy:
Cot（ɵ）=（D/2-R）/L，
wherein ɵ is the inclination angle of the first side 113 with respect to the bottom 111, D is the length of the bottom 111, R is the radius of the top 112, L is the height of the second side 114, and the heights of the first side 113 and the second side 114 are the same.
ɵ herein is the inclination angle of the first side 113 with respect to the bottom 111, and can also be understood as the draft angle during the processing of the first direction plate 11.
By adopting the relation, the processing technology of the first direction plate 11 and the second direction plate 12 can be realized relatively easily while the flow speed consistency of each channel of the grid is met.
The length of the bottom edge 111 of the first direction plate 11 is the thickness of the first direction plate 11, and the length of the bottom edge of the second direction plate 12 is the thickness of the second direction plate 12.
In some embodiments, the length D of the bottom edges of the first and second direction plates 11, 12 are each 0.6mm to 0.8mm, and preferably the bottom edges of the first and second direction plates 11, 12 are the same length and are each 0.7mm.
On the basis of the above technical solution, the cross-sectional dimensions of the first direction plate 11 and the cross-sectional dimensions of the second direction plate 12 in the present application are the same, i.e. the length of the bottom edge of the first direction plate 11, the radius of the top edge of the first direction plate 11 and the height of the first direction plate 11 are the same as the length of the bottom edge of the second direction plate 12, the radius of the top edge of the second direction plate 12 and the height of the second direction plate 12, respectively.
In the grid structure formed by vertically connecting the first direction plates 11 and the second direction plates 12 by using the above dimensional relationship, the distance L between the adjacent first direction plates 11 and the distance between the adjacent second direction plates 12 are both 3.5mm to 4.0mm.
In some embodiments, the distance between adjacent first direction plates 11 is equal to the distance between adjacent second direction plates 12, and is 3.8mm.
The cross section size of the first direction plate 11 and the cross section size of the second direction plate 12 are set to be the same, the thickness size of the first direction plate 11 and the thickness size of the second direction plate 12 are set to be 0.7mm, the distance between the first direction plates 11 and the distance between the second direction plates 12 of the grating are equal, and the distances are set to be 3.8mm, so that the effective flow area can be ensured, and the flow velocity of each channel of the grid structure is ensured to be the same.
In addition, as shown in fig. 3 and fig. 4, the present application further discloses a flow stabilizing tube, which includes a flow stabilizing tube main body 2 and a grid 1, wherein the grid 1 is fixed at an air inlet end of the flow stabilizing tube main body 2, and the grid 1 is the grid 1 disclosed in the foregoing embodiment, so that the flow stabilizing tube with the grid 1 also has all the above technical effects, and is not repeated herein.
In addition, the application also discloses an internal combustion engine comprising the flow stabilizing pipe, wherein the flow stabilizing pipe is disclosed in the embodiment, so that the internal combustion engine with the flow stabilizing pipe has all the technical effects and is not described in detail herein.
As used in the specification and in the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. The inclusion of an element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises an element.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A grille, comprising:
the first direction plate and the second direction plate are connected in a crossing manner to form a grid structure;
the first direction plate and/or the second direction plate are/is plate members with gradually-expanded thickness from one side of the grid structure to the other side.
2. The grille of claim 1 wherein the first and second direction plates are trapezoidal plates and the smaller thickness end of the trapezoidal plates is an arcuate surface.
3. The grid according to claim 2 wherein the cross sections of the first and second direction plates each comprise a bottom edge, a top edge, a first side edge, and a second side edge,
the bottom edge is a plane, the top edge is an arc, the first side edge and the second side edge are inclined to the bottom edge, and the inclination angles of the first side edge and the second side edge relative to the bottom edge are the same.
4. A grille as claimed in claim 3, wherein the first and second direction plates each satisfy:
Cot（ɵ）=（D/2-R）/L，
wherein ɵ is the inclination angle of the first side edge relative to the bottom edge, D is the width of the bottom edge, R is the radius of the top edge, L is the height of the second side edge, and the heights of the first side edge and the second side edge are the same.
5. The grid according to claim 4, wherein the length D of the bottom edge is 0.6mm-0.8mm.
6. The grille of claim 4 wherein the length of the bottom edge of the first directional plate, the radius of the top edge of the first directional plate, and the height of the first directional plate are the same as the length of the bottom edge of the second directional plate, the radius of the top edge of the second directional plate, and the height of the second directional plate, respectively.
7. A grid according to any one of claims 1 to 6, wherein the distance between adjacent first direction plates and the distance between adjacent second direction plates are each 3.5mm-4.0mm.
8. The grille of claim 7 wherein the distance between adjacent first direction plates is equal to the distance between adjacent second direction plates.
9. A flow stabilizing tube comprising a flow stabilizing tube body and a grille, wherein the grille is secured to an air inlet end of the flow stabilizing tube body and the grille is as claimed in any one of claims 1 to 8.
10. An internal combustion engine comprising a flow stabilizer tube, wherein the flow stabilizer tube is the flow stabilizer tube of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323446391.3U CN220505486U (en) | 2023-12-18 | 2023-12-18 | Grille, steady flow pipe and internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323446391.3U CN220505486U (en) | 2023-12-18 | 2023-12-18 | Grille, steady flow pipe and internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220505486U true CN220505486U (en) | 2024-02-20 |
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ID=89880649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323446391.3U Active CN220505486U (en) | 2023-12-18 | 2023-12-18 | Grille, steady flow pipe and internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220505486U (en) |
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2023
- 2023-12-18 CN CN202323446391.3U patent/CN220505486U/en active Active
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