CN204511726U - Natural aspiration petrol engine air admission manifold - Google Patents
Natural aspiration petrol engine air admission manifold Download PDFInfo
- Publication number
- CN204511726U CN204511726U CN201520042602.3U CN201520042602U CN204511726U CN 204511726 U CN204511726 U CN 204511726U CN 201520042602 U CN201520042602 U CN 201520042602U CN 204511726 U CN204511726 U CN 204511726U
- Authority
- CN
- China
- Prior art keywords
- pressure stabilizing
- stabilizing cavity
- flow path
- gas inlet
- suction tude
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of natural aspiration petrol engine air admission manifold, comprise pressure stabilizing cavity and each the suction tude be connected with pressure stabilizing cavity by arc air-flow path, the suction port of each suction tude is positioned at the same side, the base plate of arc air-flow path and pressure stabilizing cavity is connected away from one end of each suction tude suction port, it is characterized in that: pressure stabilizing cavity gas inlet is arranged on the end face of pressure stabilizing cavity, the import bore of arc air-flow path is greater than the bore of pressure stabilizing cavity gas inlet, pressure stabilizing cavity gas inlet is positioned at the top of the import of arc air-flow path, pressure stabilizing cavity gas inlet away from the sidewall of each suction tude import to downward-extension, this extension part reaches in arc air-flow path.The utility model structure is simple, reasonable in design, extends a guide plate, make air-flow spirally enter each suction tude suction port below the suction port of pressure stabilizing cavity, reduces inertia inlet loss, reaches raising charging efficiency, promotes the object of engine performance.
Description
Technical field
The utility model relates to a kind of natural aspiration petrol engine air admission manifold.
Background technique
The restriction that conventional engines intake manifold is arranged owing to being subject to space, intake manifold pressure stabilizing cavity suction port is usually placed in the position near a cylinder intake duct or four cylinder intake ducts, namely the two ends of pressure stabilizing cavity are arranged on, four suction tude are arranged on the same side of pressure stabilizing cavity, this layout often causes each cylinder air inlet uneven, thus causes engine roughness.
If pressure stabilizing cavity gas inlet to be arranged on the end face of pressure stabilizing cavity, such can make air inlet uniformity some, but collide from the gas base plate that is direct and pressure stabilizing cavity that end face enters and change direction, as shown in Figure 1, like this 1. 2. 3. place will cause a large amount of windage losses, for the motor of natural aspiration, inertia inlet loss is very large, directly affects engine performance.
Model utility content
For existing problem, the purpose of this utility model is to provide a kind of flow inertance to lose little natural aspiration petrol engine air admission manifold.
To achieve these goals, the technical solution of the utility model is: a kind of natural aspiration petrol engine air admission manifold, comprise pressure stabilizing cavity (1) and each the suction tude (2) be connected with pressure stabilizing cavity (1) by arc air-flow path (4), the suction port of each suction tude (2) is positioned at the same side, the base plate of described arc air-flow path (4) and pressure stabilizing cavity (1) is connected away from one end of each suction tude (2) suction port, it is characterized in that: pressure stabilizing cavity gas inlet (3) is arranged on the end face of pressure stabilizing cavity (1), the import bore of described arc air-flow path (4) is greater than the bore of pressure stabilizing cavity gas inlet (3), described pressure stabilizing cavity gas inlet (3) is positioned at the top of the import of arc air-flow path (4), described pressure stabilizing cavity gas inlet (3) away from the sidewall of each suction tude (2) import to downward-extension, this extension part (31) reaches in arc air-flow path (4).
Adopt such scheme, pressure stabilizing cavity suction port is arranged on the end face of pressure stabilizing cavity, after gas is come in from pressure stabilizing cavity gas inlet, under the effect of the gas channeling plate of extension part formation, as shown in Figure 3, air-flow is with 1. 2. order 3., air-flow first detours the behind of extension part, then enters the suction port of each suction tude along arc air-flow path spiral, thus reduces inertia loss, reach raising charging efficiency, promote the object of engine performance.
In such scheme, described suction tude (2) is four, and described pressure stabilizing cavity gas inlet (3) is positioned at the position between first and second suction tude (2).
In such scheme: described extension part (31) is semi-cylindrical shaped, the diameter of described extension part (31) is identical with the diameter of pressure stabilizing cavity gas inlet (3).Such guide effect is better.
The beneficial effects of the utility model are: the utility model structure is simple, reasonable in design, a guide plate is extended below the suction port of pressure stabilizing cavity, air-flow is made spirally to enter each suction tude suction port, reduce inertia inlet loss, reach raising charging efficiency, promote the object of engine performance.
Accompanying drawing illustrates:
Fig. 1 is the structural representation before improving.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the B-B sectional view of Fig. 2.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
Of the present utility modelly wait the relative position of the noun of locality only in representative graph all around, do not represent the absolute position of product.
Embodiment 1
As in Figure 2-4: natural aspiration petrol engine air admission manifold of the present utility model is made up of parts such as pressure stabilizing cavity 1, four suction tude 2, pressure stabilizing cavity gas inlet 3, arc air-flow paths 4.
Four suction tude 2 are connected with pressure stabilizing cavity 1 by arc air-flow path 4, the suction port of four suction tude 2 is all positioned at the same side of pressure stabilizing cavity 1, the front side of Fig. 2, the base plate of arc air-flow path 4 one end and pressure stabilizing cavity 1 is connected away from one end of each suction tude 2 suction port, the other end of arc air-flow path 4 is connected with a suction tude 2, and arc air-flow path 4 is positioned at the below of pressure stabilizing cavity 1, and each suction tude 2 is positioned at the top of pressure stabilizing cavity 1, this is prior art, does not repeat at this.
Pressure stabilizing cavity gas inlet 3 is arranged on the end face of pressure stabilizing cavity 1, and preferred pressure stabilizing cavity gas inlet 3 is in the position between first and second suction tude 2.The import bore of arc air-flow path 4 is greater than the bore of pressure stabilizing cavity gas inlet 3, pressure stabilizing cavity gas inlet 3 is positioned at the top of the import of arc air-flow path 4, pressure stabilizing cavity gas inlet 3 extends into extension part 31 downwards away from the sidewall of each suction tude 2 import, extension part 31 is semi-cylindrical shaped, and the diameter of extension part 31 is identical with the diameter of pressure stabilizing cavity gas inlet 3.The semicircular cylinder being equivalent to the suction port away from each suction tude 2 of pressure stabilizing cavity gas inlet 3 extends to form extension part 31 downwards, and this extension part 31 reaches in arc air-flow path 4.Extension part 31 is as gas-flow deflector.After gas is come in from pressure stabilizing cavity gas inlet 3, downward along extension part 31, then around after extension part 31, turn back again and enter each suction tude 2 along arc air-flow path 4, as shown in Figure 3, the cross section of the lower tube wall of arc air-flow path 4 is successively by vertical section, and arcuate segment and ramp up section form, air-flow with 1. 2. order spiral 3. enter each suction tude suction port, thus reduce inertia loss.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technician in the art according to design of the present utility model on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection domain of claims.
Claims (3)
1. a natural aspiration petrol engine air admission manifold, comprise pressure stabilizing cavity (1) and each the suction tude (2) be connected with pressure stabilizing cavity (1) by arc air-flow path (4), the suction port of each suction tude (2) is positioned at the same side, the base plate of described arc air-flow path (4) and pressure stabilizing cavity (1) is connected away from one end of each suction tude (2) suction port, it is characterized in that: pressure stabilizing cavity gas inlet (3) is arranged on the end face of pressure stabilizing cavity (1), the import bore of described arc air-flow path (4) is greater than the bore of pressure stabilizing cavity gas inlet (3), described pressure stabilizing cavity gas inlet (3) is positioned at the top of the import of arc air-flow path (4), described pressure stabilizing cavity gas inlet (3) away from the sidewall of each suction tude (2) import to downward-extension, this extension part (31) reaches in arc air-flow path (4).
2. natural aspiration petrol engine air admission manifold according to claim 1, it is characterized in that: described suction tude (2) is four, described pressure stabilizing cavity gas inlet (3) is positioned at the position between first and second suction tude (2).
3. natural aspiration petrol engine air admission manifold according to claim 1, it is characterized in that: described extension part (31) is semi-cylindrical shaped, the diameter of described extension part (31) is identical with the diameter of pressure stabilizing cavity gas inlet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520042602.3U CN204511726U (en) | 2015-01-21 | 2015-01-21 | Natural aspiration petrol engine air admission manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520042602.3U CN204511726U (en) | 2015-01-21 | 2015-01-21 | Natural aspiration petrol engine air admission manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511726U true CN204511726U (en) | 2015-07-29 |
Family
ID=53709711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520042602.3U Expired - Fee Related CN204511726U (en) | 2015-01-21 | 2015-01-21 | Natural aspiration petrol engine air admission manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511726U (en) |
-
2015
- 2015-01-21 CN CN201520042602.3U patent/CN204511726U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20190121 |