CN101705890B - Automotive engine intake manifold - Google Patents
Automotive engine intake manifold Download PDFInfo
- Publication number
- CN101705890B CN101705890B CN2009101913548A CN200910191354A CN101705890B CN 101705890 B CN101705890 B CN 101705890B CN 2009101913548 A CN2009101913548 A CN 2009101913548A CN 200910191354 A CN200910191354 A CN 200910191354A CN 101705890 B CN101705890 B CN 101705890B
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- CN
- China
- Prior art keywords
- intake manifold
- intake
- pressure stabilizing
- mounting flange
- stabilizing cavity
- 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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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention discloses an automotive engine intake manifold. A voltage-stabilizing cavity consists of a straight segment and an oblique upturned inlet manifold; the inlet manifold is connected with a throttle valve installation flange; a plurality of air inlet bent pipes are connected between the straight segment of the voltage-stabilizing and the installation flange of a cylinder cover, wherein, the quantity of the air inlet bent pipes is equal to that of the cylinders; a 145-155 degrees of included angle is arranged between the axes of the straight segment of the voltage-stabilizing and the inlet manifold; each air inlet bent pipe has the same shape and the same length, the length of each air inlet bent pipe is 390-410mm, and the inner diameter thereof is 34-37mm. By changing the shape, length and inner diameter of the air inlet bent pipe, and the included angle between the axes of the straight segment of the voltage-stabilizing and the inlet manifold, the automotive engine intake manifold of the invention can greatly increase the volumetric efficiency of the cylinder, thus improving the power performance of the engine, so that the maximum power of the engine can be increased by 17%, and the maximum torque can be increased by 20%, thereby greatly reducing vibration and noise of the engine.
Description
Technical field
The present invention relates to a kind of automobile component, particularly the intake manifold on the motor car engine.
Background technique
Air intake manifold of automotive engine is installed between engine cylinder head and the closure, and main effect is to satisfy the independent air inlet of each cylinder.Intake manifold generally is made of pressure stabilizing cavity, intake elbow, closure mounting flange and cylinder cap mounting flange, wherein pressure stabilizing cavity is the tubular structure of the uncovered the other end sealing of an end, be made up of flat segments and the intake manifold that tiltedly upwarps, the intake manifold links to each other with the closure mounting flange.Be connected with many intake elbows between the flat segments of pressure stabilizing cavity and cylinder cap mounting flange, the quantity of intake elbow equates with the number of cylinder.Has the angle about 130 ° in the conventional construction between the axis of pressure stabilizing cavity flat segments and intake manifold's the axis, this angle is less, air-flow can produce the sharp turn from the intake manifold again to flat segments to the intake elbow process of flowing, make gas flow not smooth, can influence the charging efficiency of cylinder, cause engine performance relatively poor.Simultaneously, intake elbow is pressed comb shape usually and is distributed, each intake elbow different in size, but internal diameter equates (being about 40mm), the air inflow of each cylinder is inhomogeneous like this, can cause engine luggine and noise big.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of can be to the even air intake manifold of automotive engine of inflation of each cylinder.
Technological scheme of the present invention is as follows: a kind of air intake manifold of automotive engine, comprise pressure stabilizing cavity, intake elbow, closure mounting flange and cylinder cap mounting flange, wherein pressure stabilizing cavity is made up of flat segments and the intake manifold that tiltedly upwarps, the intake manifold links to each other with the closure mounting flange, be connected with many intake elbows side by side between pressure stabilizing cavity flat segments and cylinder cap mounting flange, its key is: the angle that has 145～155 ° between the axis of described pressure stabilizing cavity flat segments and intake manifold's the axis; The shape of described each intake elbow is identical, equal in length, and the length of each intake elbow is 390～410mm, and internal diameter is 34～37mm.
The present invention increases to 145～155 ° with the angle between pressure stabilizing cavity flat segments axis and the intake manifold's axis by 130 °, avoided air-flow to the intake elbow process of flowing, to produce the sharp turn again to flat segments like this from the intake manifold, make gas flow unimpeded, thereby promoted the charging efficiency of cylinder, improved the performance of motor.The shape of each intake elbow is identical, and equal in length can guarantee that the air inflow of each cylinder is even, effectively reduces the vibration and the noise of motor; With the length adjustment of each intake elbow is 390～410mm, and internal diameter is adjusted into 34～37mm, can further improve the charging efficiency of cylinder, improves the performance of motor.
As preferably, has 150 ° angle between the axis of described pressure stabilizing cavity flat segments and intake manifold's the axis; The length of described each intake elbow is 400mm, and internal diameter is 35mm.
Described pressure stabilizing cavity, intake elbow, closure mounting flange and cylinder cap mounting flange are made by engineering plastics.The present invention is a working of plastics, and is in light weight, processing is simple, cost is low, and spatial volume is little simultaneously, assembles with the rear engine compactness, for the space has been saved in the car load assembling.
The torsional performance contrast of the present invention and conventional construction sees the following form:
From above torsional performance contrast table as can be seen, be equipped with motor of the present invention at the moment of torsion of each rotating speed point nearly all greater than conventional construction.Therefore, the present invention can significantly promote the performance of motor by evenly inflating to each cylinder.
Beneficial effect: the present invention is by changing moulding, length, the internal diameter of intake elbow, and the angle between pressure stabilizing cavity flat segments axis and the intake manifold's axis, can promote the charging efficiency of cylinder greatly, and then improved engine power performance, make the peak output of motor can promote 17%, Maximum Torque can promote 20%, and greatly reduces the vibration and the noise of motor.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
As shown in Figure 1, the present invention is made of pressure stabilizing cavity 1, intake elbow 2, closure mounting flange 3 and cylinder cap mounting flange 4, and each parts is made by engineering plastics.Described pressure stabilizing cavity 1 is the tubular structure of the uncovered the other end sealing of an end, form by flat segments 1a and the intake manifold 1b that tiltedly upwarps, intake manifold 1b links to each other with closure mounting flange 3, the angle that has 145～155 ° between the axis of pressure stabilizing cavity flat segments 1a and the axis of intake manifold 1b, in the present embodiment, this angle is preferably 150 °.Be connected with many intake elbows 2 side by side between described pressure stabilizing cavity flat segments 1a and cylinder cap mounting flange 4, the quantity of intake elbow 2 equates with the number of cylinder, can be 2,3,4,6 or other number.The shape of described each intake elbow 2 is identical, and the concrete shape of intake elbow 2 can be regulated according to specific vehicle, and the equal in length of each intake elbow 2 is 390～410mm, and internal diameter is 34～37mm.In the present embodiment, the length of intake elbow 2 is preferably 400mm, and internal diameter is preferably 35mm.
Claims (3)
1. air intake manifold of automotive engine, comprise pressure stabilizing cavity (1), intake elbow (2), closure mounting flange (3) and cylinder cap mounting flange (4), wherein pressure stabilizing cavity (1) is made up of flat segments (1a) and the intake manifold (1b) that tiltedly upwarps, intake manifold (1b) links to each other with closure mounting flange (3), between pressure stabilizing cavity flat segments (1a) and cylinder cap mounting flange (4), be connected with many intake elbows (2) side by side, it is characterized in that: the angle that has 145～155 ° between the axis of described pressure stabilizing cavity flat segments (1a) and intake manifold's (1b) the axis; The shape of described each intake elbow (2) is identical, equal in length, and the length of each intake elbow (2) is 390～410mm, and internal diameter is 34～37mm.
2. air intake manifold of automotive engine according to claim 1 is characterized in that: the angle that has 150 ° between the axis of described pressure stabilizing cavity flat segments (1a) and intake manifold's (1b) the axis; The length of described each intake elbow (2) is 400mm, and internal diameter is 35mm.
3. air intake manifold of automotive engine according to claim 1 is characterized in that: described pressure stabilizing cavity (1), intake elbow (2), closure mounting flange (3) and cylinder cap mounting flange (4) are made by engineering plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101913548A CN101705890B (en) | 2009-11-06 | 2009-11-06 | Automotive engine intake manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101913548A CN101705890B (en) | 2009-11-06 | 2009-11-06 | Automotive engine intake manifold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101705890A CN101705890A (en) | 2010-05-12 |
| CN101705890B true CN101705890B (en) | 2011-12-14 |
Family
ID=42376136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101913548A Expired - Fee Related CN101705890B (en) | 2009-11-06 | 2009-11-06 | Automotive engine intake manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101705890B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603755A (en) * | 2013-12-05 | 2014-02-26 | 安徽江淮汽车股份有限公司 | Gas inlet manifold of gasoline engine for vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5400750A (en) * | 1993-08-09 | 1995-03-28 | Brunswick Corporation | Manifold and plenum construction for an electronic fuel injected engine |
| US5572868A (en) * | 1994-02-21 | 1996-11-12 | Aisin Takaoka Co., Ltd. | Exhaust manifold |
-
2009
- 2009-11-06 CN CN2009101913548A patent/CN101705890B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5400750A (en) * | 1993-08-09 | 1995-03-28 | Brunswick Corporation | Manifold and plenum construction for an electronic fuel injected engine |
| US5572868A (en) * | 1994-02-21 | 1996-11-12 | Aisin Takaoka Co., Ltd. | Exhaust manifold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101705890A (en) | 2010-05-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20100512 Assignee: Chongqing Lifan Automobile Engine Co., Ltd. Assignor: Lifan Industry (Group) Co., Ltd. Contract record no.: 2012500000074 Denomination of invention: Air admission manifold heat-insulation mat of automobile engine Granted publication date: 20111214 License type: Exclusive License Record date: 20120725 |
|
| 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: 20111214 Termination date: 20191106 |