CN203239477U - Inlet manifold and automobile engine - Google Patents
Inlet manifold and automobile engine Download PDFInfo
- Publication number
- CN203239477U CN203239477U CN 201320182308 CN201320182308U CN203239477U CN 203239477 U CN203239477 U CN 203239477U CN 201320182308 CN201320182308 CN 201320182308 CN 201320182308 U CN201320182308 U CN 201320182308U CN 203239477 U CN203239477 U CN 203239477U
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- Prior art keywords
- pressure stabilizing
- stabilizing cavity
- rounding
- air flue
- intake manifold
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Abstract
The utility model provides an inlet manifold and an automobile engine, wherein the inlet manifold comprises a pressure stabilizing cavity and at least two airways communicated with the pressure stabilizing cavity, and an air intake connected with a throttle is arranged on the pressure stabilizing cavity. An unequal fillet structure is employed at the joint between the airways and the pressure stabilizing cavity so that air, of which the pressure is stabilized after the air enters into the pressure stabilizing cavity through the air intake, is uniformly distributed among the airways. Preferably, a fillet of the single airway perpendicular to the air intake direction is greater than the fillet along the air intake direction at the joint between the airway and the pressure stabilizing cavity. At the joint between the airway and the pressure stabilizing cavity, a fillet of a head airway along the air inlet direction is greater than the fillet of a tail airway, and the fillet of an intermediate airway is smaller than the fillets of the head airway and the tail airway. Such a structure effectively reduces inlet air pressure loss, and minimizes difference of airway pressure loss of all cylinders. When the air input of all cylinders is increased, the uniformity of the air input of the cylinders is ensured. The dynamic performance and economic benefit of the engine are improved.
Description
Technical field
The utility model relates to technical field of automobile engine, is specifically related to a kind of intake manifold and comprises the motor car engine of this intake manifold.
Background technique
The intake manifold air passage structure is one of principal element that affects air input of engine by air and intake uniformity.The full admission amount of each cylinder of motor is the prerequisite that guarantees that the motor peak power realizes; And each cylinder intake uniformity directly affects the uniformity of each cylinder acting ability of motor, uniformity missionary society produces the problems such as moment of torsion output is unstable, engine luggine is large, be simultaneously the quick-fried large phenomenon of shaking of restriction individual cylinder, can integral body reduce advance angle of engine ignition again, reduce the whole output capability of motor.Therefore, the rationally design of the air passage structure of intake manifold by reducing the uniformity of air inlet crushing and increase air inlet crushing, can guarantee the required air inflow of motor and intake uniformity, to satisfy the engine design target to the requirement of power and moment of torsion.
Be illustrated in figure 1 as the structural representation of a kind of intake manifold in the prior art, this intake manifold air passage structure design is unreasonable, and employing waits the pressure stabilizing cavity cross section structure, is unfavorable for reducing the air inlet crushing; Simultaneously employing waits the rounding structure, and each the cylinder air flue crushing that is unfavorable for avoiding the drawback owing to the air flue spatial structure to produce is inhomogeneous, i.e. the lack of homogeneity of each air flue crushing, thus affect the uniformity of each cylinder air inflow of motor.Therefore, irrational air passage structure design can increase the air inlet crushing and reduce the crushing uniformity, affects motor peak power and Maximum Torque, and the uniformity of each cylinder acting, finally affects the performance of motor.
The model utility content
Feature and advantage of the present utility model are partly statement in the following description, perhaps can describe obviously from this, perhaps can learn by putting into practice the utility model.
For overcoming the problem of prior art, the utility model provides a kind of intake manifold, adopt and do not wait the rounding structure, simultaneously can be in conjunction with the successively decrease structure of pressure stabilizing cavity cross-section area of employing, this structure can reduce the air inlet crushing effectively, reduces the difference of each cylinder air flue crushing, when increasing each cylinder air inflow, also guarantee the uniformity of each cylinder air inflow, improve power character and the Economy of motor with this.
It is as follows that the utility model solves the problems of the technologies described above the technological scheme that adopts:
According to an aspect of the present utility model, a kind of intake manifold is provided, comprise pressure stabilizing cavity and at least two air flues that are communicated with pressure stabilizing cavity, pressure stabilizing cavity is provided with the suction port that is connected for closure, wherein, air flue and pressure stabilizing cavity junction point adopt and to make gas not wait the rounding structure by what suction port was assigned to each air flue equably after the voltage stabilizing in pressure stabilizing cavity.
According to an embodiment of the present utility model, at air flue and pressure stabilizing cavity junction point, single air flue perpendicular to the rounding of airintake direction greater than the rounding along airintake direction.
According to an embodiment of the present utility model, at air flue and pressure stabilizing cavity junction point, along the rounding of the first air flue of the airintake direction rounding greater than the tail gas road, and the rounding of middle air flue is less than the rounding in first air flue and tail gas road.
According to an embodiment of the present utility model, at first air flue and pressure stabilizing cavity junction point, along airintake direction near the rounding of the first air flue of suction port greater than the rounding away from the first air flue of suction port.
According to an embodiment of the present utility model, at tail gas road and pressure stabilizing cavity junction point, along airintake direction away from the rounding in the tail gas road of suction port greater than the rounding near the tail gas road of suction port.
According to an embodiment of the present utility model, the cross-section area of pressure stabilizing cavity successively decreases along airintake direction.
According to an embodiment of the present utility model, the quantity of air flue is four, and four air flues and pressure stabilizing cavity junction point adopt along airintake direction and do not wait the rounding structure.
According to an embodiment of the present utility model, not waiting the rounding structure is to adopt unequal chamfer radius at air flue and pressure stabilizing cavity transition junction point.
According to an embodiment of the present utility model, air flue is directly drawn from the pressure stabilizing cavity middle part.
According to an embodiment of the present utility model, suction port is arranged on the end of pressure stabilizing cavity.
According to an embodiment of the present utility model, intake manifold adopts plastic air intake manifold.
According to an embodiment of the present utility model, the pressure stabilizing cavity cross section is irregular rectangle.
According to another aspect of the present utility model, a kind of motor car engine is provided, comprise such as the described intake manifold of above-mentioned arbitrary technological scheme.
The utility model provides a kind of intake manifold and has comprised the motor car engine of this intake manifold, improve for irrational air passage structure design in the prior art, particularly, the improvement of this intake manifold is: 1, each bar air flue and pressure stabilizing cavity joint are adopted and are not waited the rounding structure; 2, the wall scroll air flue adopts in different directions from the pressure stabilizing cavity joint and does not wait the rounding structure; 3, the cross section of pressure stabilizing cavity successively decreases.Successively decrease pressure stabilizing cavity cross-section area and do not wait the rounding structure of employing can reduce intake resistance effectively, reduces crushing difference, when increasing air inflow, also guarantees the uniformity of each cylinder air inflow, improves power character and the Economy of motor with this.It provides a kind of intake manifold that can satisfy the required air inflow of motor and guarantee each cylinder intake uniformity, to satisfy the engine design target to the requirement of power and moment of torsion mainly by rational intake manifold air passage structure design.Intake manifold of the present utility model can reduce the air inlet crushing, increases air inflow, thereby increases motor acting ability, and the uniformity of each cylinder crushing of Effective Raise increases intake uniformity simultaneously, effectively reduces the vibration pinking trend different with each cylinder.This air passage structure is reasonable in design, has guaranteed that peak output and the moment of torsion of the supercharged engine that carries reaches design object.
By reading specification, those of ordinary skills will understand feature and the content of these technological schemes better.
Description of drawings
Below by describing particularly the utility model with reference to the accompanying drawings and in conjunction with example, advantage of the present utility model and implementation will be more obvious, wherein content shown in the accompanying drawing only is used for explaining to of the present utility model, and do not consist of the restriction of going up in all senses of the present utility model, in the accompanying drawings:
Fig. 1 is the structural representation of a kind of intake manifold in the prior art;
Fig. 2 is the structural representation of the utility model embodiment intake manifold;
Fig. 3 is the perspective view of the utility model embodiment intake manifold;
Fig. 4 is that the utility model embodiment intake manifold does not wait the rounding structural representation;
Fig. 5 is that the utility model embodiment intake manifold does not wait rounding structural section schematic representation;
Fig. 6 is the utility model embodiment intake manifold sectional area structural representation that successively decreases;
Fig. 7 is the contrast schematic representation in A-A cross section and D-D cross section among Fig. 6.
Embodiment
Extremely shown in Figure 7 such as Fig. 2, the intake manifold air passage structure designs unreasonable in the prior art in order to solve, the large and poor problem of intake uniformity of air inlet crushing, the utility model embodiment provides a kind of intake manifold, comprise pressure stabilizing cavity 10 and at least two air flues that are communicated with pressure stabilizing cavity 10 (for example air flue 21,22,23,24), pressure stabilizing cavity 10 is provided with for the suction port 11 that is connected with closure, wherein, air flue and pressure stabilizing cavity 10 junction points adopt and to make gas not wait the rounding structure by what suction port was assigned to each air flue equably after the voltage stabilizing in pressure stabilizing cavity.Not waiting the rounding structure is to adopt unequal chamfer radius at air flue and pressure stabilizing cavity 10 transition junction points.This air passage structure is not by waiting rounding structural design, strengthen crushing than the rounding of big airways, to reduce the difference of each cylinder air flue crushing, effectively reduce the air inlet crushing and increased simultaneously the uniformity of each cylinder crushing, guarantee air inflow and intake uniformity that each cylinder is required, to satisfy the engine design target to the requirement of power and moment of torsion.
As shown in Figure 2, the entity structure of the utility model embodiment intake manifold comprises pressure stabilizing cavity 10, each cylinder air flue 21,22,23,24, and the rounding of both connecting parts.The quantity of above-mentioned air flue is four, and suction port is arranged on the end (for example right-hand member) of pressure stabilizing cavity 10, and air flue 21,22,23,24 is directly drawn from pressure stabilizing cavity 10 middle parts, can reduce the air inlet turning, reduces pressure drop.Four air flues of this intake manifold are in one line to be connected with pressure stabilizing cavity 10, and pressure stabilizing cavity 10 adopts the cross-section area structure of successively decreasing, and different rounding structures are arranged in the joint simultaneously.Intake manifold is by rational air passage structure design, will be by the gas behind the closure after pressure stabilizing cavity 10 voltage stabilizings, be assigned to equably each cylinder intake duct, effectively reduced the uniformity of air inlet crushing and increase crushing, guarantee air inflow and intake uniformity that each cylinder is required.
At first, at air flue and pressure stabilizing cavity 10 junction points, single air flue perpendicular to the rounding of airintake direction greater than the rounding along airintake direction.Each air flue and pressure stabilizing cavity 10 junction points have rounding, comprised along the rounding of the airintake direction that enters each air flue from pressure stabilizing cavity with perpendicular to the rounding of this airintake direction, strengthen each air flue in the present embodiment perpendicular to the rounding of airintake direction, make it greater than the rounding along airintake direction, take full advantage of like this space, reduce each cylinder air flue crushing, reduced intake resistance, increased air inflow.
In addition, as shown in Figure 4, the air flue 21,22,23 of intake manifold, 24 is four minutes tubular constructions, and four air flues and pressure stabilizing cavity 10 junction points adopt along airintake direction and do not wait the rounding structure.At each air flue and pressure stabilizing cavity 10 junction points, along the rounding of the first air flue 21 of the airintake direction rounding greater than tail gas road 24, and middle air flue 22,23 rounding are less than the rounding in first air flue 21 and tail gas road 24.Particularly, at first air flue 21 and pressure stabilizing cavity 10 junction points, along airintake direction near the rounding (being the rounding at a1 place) of the first air flue of suction port greater than the rounding (being the rounding at a2 place) away from the first air flue of suction port.In the tail gas road 24 with pressure stabilizing cavity 10 junction points, along airintake direction away from the rounding (being the rounding at d2 place) in the tail gas road of the suction port rounding (being the rounding at d1 place) greater than the tail gas road of close suction port.Adopt each cylinder air flue not wait the structural design (rounding at rounding＞a2, the b1 at the rounding at the rounding at a1 place＞d2 place＞d1 place, b2, c1, c2 place) of rounding, strengthen crushing than the rounding of big airways (such as air flue 21,24), improve the uniformity of each cylinder air inlet.The air passage structure design of this intake manifold has effectively reduced the air inlet crushing and has increased the uniformity of crushing, has guaranteed air inflow and intake uniformity that each cylinder is required, has improved power character and the Economy of motor.
Fig. 5 is that the utility model embodiment intake manifold does not wait rounding structural section schematic representation, chamfer radius δ 1〉γ 2〉γ 1〉δ 2, α 1, α 2, β 1, β 2, wherein, α 1 can equate also can not wait with α 2, adopts the structure that equates can make processing technology simple.Equally, β 1 can equate also can not wait with β 2, and in addition, α 1, β 1, γ 1 can equate also can not wait, and adopts the structure that equates can make processing technology simple.The value of above-mentioned rounding can be by three-dimensional CFD(computation fluid dynamics) simulation calculation draws.
As shown in Figure 6 and Figure 7, the cross-section area of intake manifold pressure stabilizing cavity 10 is along airintake direction successively decrease (being A-A cross-section area＜B-B cross-section area＜C-C cross-section area＜D-D cross-section area), and the pressure stabilizing cavity cross section is irregular rectangle, move towards according to charge air flow, select different rounding values, to reduce the air inlet crushing.Prevent the generation of pressure stabilizing cavity 10 interior eddy current by pressure stabilizing cavity 10 cross sections that successively decrease, to reduce intake resistance.This structure can reduce the volume of the idle space in the pressure stabilizing cavity 10 effectively, avoids unnecessary eddy current to produce, and therefore can effectively reduce the air inlet crushing in the pressure stabilizing cavity 10, increases the air inflow of motor.In addition, the utility model embodiment's intake manifold can adopt plastic air intake manifold.
Adopt the utility model embodiment's technological scheme, compared with prior art, the 1.8T intake manifold is by above-mentioned scheme optimization, and the air inlet crushing descends 5.1%, and the crushing uniformity improves 4.8%.
The intake manifold of present embodiment is by the design of rational air passage structure, prevents the generation of eddy current in the pressure stabilizing cavity by the pressure stabilizing cavity cross section that successively decreases, to reduce intake resistance; Do not wait the rounding structure by each cylinder air flue, strengthen crushing than the rounding of big airways, to reduce the difference of each cylinder air flue crushing, guarantee the uniformity of each cylinder air inflow.By reducing the air inlet crushing, increase air inflow, thereby increase motor acting ability, the uniformity of each cylinder crushing of Effective Raise increases intake uniformity simultaneously, effectively reduces the vibration pinking trend different with each cylinder.This air passage structure is reasonable in design, has guaranteed that peak output and the moment of torsion of the supercharged engine that carries reaches design object.
The utility model embodiment also provides a kind of motor car engine, comprises such as the described intake manifold of above-mentioned technological scheme.
More than with reference to the accompanying drawings of preferred embodiment of the present utility model, those skilled in the art do not break away from scope of the present utility model and essence, can have multiple flexible program to realize the utility model.For example, the feature that illustrates or describe as an embodiment's part can be used for another embodiment to obtain another embodiment.Below only be the better feasible embodiment of the utility model, be not so limit to interest field of the present utility model that the equivalence that all utilization the utility model specifications and accompanying drawing content are done changes, and all is contained within the interest field of the present utility model.
Claims (10)
1. intake manifold, it is characterized in that, comprise pressure stabilizing cavity and at least two air flues that are communicated with described pressure stabilizing cavity, described pressure stabilizing cavity is provided with the suction port that is connected for closure, wherein, described air flue and described pressure stabilizing cavity junction point adopt and to make gas not wait the rounding structure by what described suction port was assigned to each described air flue equably after the voltage stabilizing in described pressure stabilizing cavity.
2. intake manifold according to claim 1 is characterized in that, at described air flue and described pressure stabilizing cavity junction point, single air flue perpendicular to the rounding of airintake direction greater than the rounding along airintake direction.
3. intake manifold according to claim 1, it is characterized in that, at described air flue and described pressure stabilizing cavity junction point, along the rounding of the first air flue of the airintake direction rounding greater than the tail gas road, and the rounding of middle air flue is less than the rounding in described first air flue and described tail gas road.
4. intake manifold according to claim 3 is characterized in that, at described first air flue and described pressure stabilizing cavity junction point, along airintake direction near the rounding of the first air flue of described suction port greater than the rounding away from the first air flue of described suction port.
5. intake manifold according to claim 3 is characterized in that, at described tail gas road and described pressure stabilizing cavity junction point, along airintake direction away from the rounding in the tail gas road of described suction port greater than the rounding near the tail gas road of described suction port.
6. intake manifold according to claim 1 is characterized in that, the cross-section area of described pressure stabilizing cavity successively decreases along airintake direction.
7. intake manifold according to claim 1 is characterized in that, the quantity of described air flue is four, and described four air flues and described pressure stabilizing cavity junction point adopt along airintake direction and do not wait the rounding structure.
8. intake manifold according to claim 1 is characterized in that, described air flue is directly drawn from described pressure stabilizing cavity middle part.
9. intake manifold according to claim 1 is characterized in that, described pressure stabilizing cavity cross section is irregular rectangle.
10. a motor car engine is characterized in that, comprises such as each described intake manifold among the claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320182308 CN203239477U (en) | 2013-04-11 | 2013-04-11 | Inlet manifold and automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320182308 CN203239477U (en) | 2013-04-11 | 2013-04-11 | Inlet manifold and automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239477U true CN203239477U (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320182308 Expired - Lifetime CN203239477U (en) | 2013-04-11 | 2013-04-11 | Inlet manifold and automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239477U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742318A (en) * | 2013-12-23 | 2014-04-23 | 广西科技大学 | Engine air inlet manifold |
| CN104100423A (en) * | 2013-04-11 | 2014-10-15 | 广州汽车集团股份有限公司 | Air inlet manifold and automobile engine |
-
2013
- 2013-04-11 CN CN 201320182308 patent/CN203239477U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100423A (en) * | 2013-04-11 | 2014-10-15 | 广州汽车集团股份有限公司 | Air inlet manifold and automobile engine |
| CN103742318A (en) * | 2013-12-23 | 2014-04-23 | 广西科技大学 | Engine air inlet manifold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Xiangdong Inventor after: Wu Jian Inventor after: Huang Yingming Inventor after: Sun Fanjia Inventor after: Zhu Hongfei Inventor after: Huang Chuhua Inventor before: Huang Yingming Inventor before: Sun Fanjia Inventor before: Zhu Hongfei Inventor before: Huang Chuhua |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HUANG YINGMING SUN FANJIA ZHU HONGFEI HUANG CHUHUA TO: HUANG XIANGDONG WU JIAN HUANG YINGMING SUN FANJIA ZHU HONGFEI HUANG CHUHUA |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131016 Effective date of abandoning: 20160316 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |