CN102536549A - Plastic air intake manifold with high explosion resistant strength - Google Patents
Plastic air intake manifold with high explosion resistant strength Download PDFInfo
- Publication number
- CN102536549A CN102536549A CN2012100474831A CN201210047483A CN102536549A CN 102536549 A CN102536549 A CN 102536549A CN 2012100474831 A CN2012100474831 A CN 2012100474831A CN 201210047483 A CN201210047483 A CN 201210047483A CN 102536549 A CN102536549 A CN 102536549A
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- air intake
- tapping screw
- intake manifold
- plastic air
- preset holes
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Abstract
The invention discloses a plastic air intake manifold with the high explosion resistant strength, wherein four parallel air intake passages are arranged on a main body; each air intake passage is formed by two pieces through butt welding; tapping screw preset holes are arranged at the welding parts of every two adjacent air intake passages respectively; each tapping screw preset hole is used for assembling one metal tapping screw; the metal tapping screws are matched and connected with the two pieces forming each air intake passage; and the end part of each tapping screw is matched and connected with a sealing cover. According to the invention, as the tapping screw preset holes are arranged on the main body at easily-exploding positions, and through the matching of the metal tapping screws and the tapping screw preset holes, the explosion resistant strength of the plastic air intake manifolds is improved; as the end parts of the tapping screw preset holes are welded with the sealing cover, and the air tightness of the plastic air intake manifolds are ensured. The plastic air intake manifold with the high explosion resistant strength can be used on various plastic air intake manifolds, particularly on turbo supercharged engines which have higher explosion resistance requirement on the plastic air intake manifolds.
Description
Technical field
The present invention relates to the car engine air admittance member, be specifically related to the high plastic air intake manifold of a kind of anti-burst intensity.
Background technique
Development along with automotive engineering; Plastic air intake manifold relies in light weight, characteristics such as intake efficiency is high, structural design is flexible, cost is low, manufacturing efficiency height; Be widely used on the domestic and international various high and low shift motor, presented the trend that replaces aluminum alloy air inlet manifold.But in engine operation process or under unusual condition, tempering phenomenon can take place, promptly cylinder inner high voltage gas returns through intake duct and scurries back in the gas manifold.In order to guarantee that motor intake manifold when the tempering is not destroyed, this just requires intake manifold that higher anti-burst performance will be arranged.The anti-burst pressure of general aluminum alloy air inlet manifold can reach 25-40bar; Return when being higher than engine flashback far away and scurry (rule of thumb back into the pressure of gas in the gas manifold; 2.0L the maximum tempering pressure of following motor in the intake manifold cavity is 9.8bar); And plastic air intake manifold is because restriction (the domestic PA6+30GF/PA66+30GF that is generally of its strength of materials; Its tensile strength is much lower than aluminum alloy air inlet manifold) anti-burst pressure can only reach 1/4 of same structure aluminum alloy air inlet manifold, and there is greater risk in the pressure when tending to be lower than engine flashback in the intake manifold on operational safety.Therefore, the anti-burst performance that how to improve plastic air intake manifold has become a great problem of intake manifold design and development.
Summary of the invention
The purpose of this invention is to provide a kind of highstrenghtpiston's intake manifold, its anti-burst intensity is higher, can resist and when engine flashback, return the pressure of scurrying back into gas in the gas manifold, and it is reliable to guarantee that it uses.
The anti-burst performance of examination plastic air intake manifold generally has the analysis of CAE burst strength and two kinds of methods of anti-burst experimental test; General plastic air intake manifold development process all is at first to estimate the anti-burst performance of product through the intensive analysis of CAE anti-burst, checks the actual anti-burst ability of product at last again through the anti-burst experimental test.For example the intake manifold of structure shown in the accompanying drawing is found to have comparatively serious stress concentration phenomenon (maximum stress has reached 195.5Mpa) at four air flue welds when carrying out the intensive analysis of CAE anti-burst, and the anti-burst pressure of estimating this product can only reach 4.5bar.In order to improve the anti-burst performance of plastic air intake manifold, then must reduce the stress value of four intake duct welding parts on the plastic air intake manifold.Through being structure intake manifold of the present invention with this intake manifold structural design optimization; (stress value is reduced to 70Mpa from 195.5Mpa can to realize effectively reducing on the plastic air intake manifold four air flue welding region stress concentration phenomenon; Anti-burst pressure can be promoted to 9.5bar from 4.5bar), thus realized improving the purpose of the whole anti-burst performance of plastic air intake manifold 1.
The high plastic air intake manifold of a kind of anti-burst intensity of the present invention; Comprise body; On body, be provided with four intake ducts side by side, intake duct is made up of the two halves butt welding, it is characterized in that: the welding part of two adjacent intake ducts on said body is respectively equipped with the tapping screw preset holes; Each tapping screw preset holes cooperates with a metal tapping screw, and this metal tapping screw is connected with the two halves that constitute intake duct; The end of each tapping screw preset holes and a sealing blanking cover are connected.
The high plastic air intake manifold of described a kind of anti-burst intensity, the material of its said sealing blanking cover is plastics, and is identical with the material of said body.
Further, said sealing blanking cover is welded to the end of said tapping screw preset holes through ultrasonic welding process, to guarantee the sealing of body.
In process of production; Elder generation is welded into assembly through each burst of plastic air intake manifold that the vibration friction-welding technique will have the tapping screw preset holes; Be assembled to the metal tapping screw in the tapping screw preset holes on the plastic air intake manifold assembly then and tighten, will seal the end that blanking cover is welded to each tapping screw preset holes through ultrasonic welding process at last.
The present invention increases the metal tapping screw through the position that is easy to explosion on plastic air intake manifold; Improve the anti-burst intensity of plastic air intake manifold through the superior tensile strength of metal tapping screw; And come the tapping screw hole on the sealed plastic intake manifold, thereby realize guaranteeing the sealing of plastic air intake manifold through ultrasonic welding process welded seal blanking cover.
The present invention compares with existing technology and has the following advantages: owing to the position that is easy to explosion at body is provided with the tapping screw preset holes, and cooperate with the tapping screw preset holes through the metal tapping screw, thereby improved plastic air intake manifold anti-burst intensity; Owing to welded the sealing blanking cover in the end of tapping screw preset holes, thereby guaranteed the sealing of plastic air intake manifold.Using scope of the present invention is wide, production technology is simple, reliability is high; Can be used on the plastic air intake manifold of anti-burst performance that any kind of need improve intake manifold, especially plastic air intake manifold is had on the turbosupercharged engine of higher bursting property requirement.
Description of drawings
Fig. 1 is the schematic representation of anti-burst weak part on the body;
Fig. 2 is a structure principle chart of the present invention;
Fig. 3 is a schematic appearance of the present invention.
Embodiment
Below in conjunction with accompanying drawing and instance the present invention is further specified.
Referring to Fig. 1, Fig. 2 and the high plastic air intake manifold of a kind of anti-burst intensity shown in Figure 3, comprise body 1, on body, be provided with four intake ducts 14 side by side, intake duct is made up of the two halves butt welding; The welding part 12 of two adjacent intake ducts on said body 1 is respectively equipped with tapping screw preset holes 13, and each tapping screw preset holes is used to install a metal tapping screw 2, and this metal tapping screw is connected with the two halves that constitute intake duct; The end of each tapping screw preset holes 13 and a sealing blanking cover 3 are connected.
Further, the material of said sealing blanking cover 3 is plastics, and is identical with the material of said body 1.
Further, said sealing blanking cover 3 is welded to the end of said tapping screw preset holes 13 through ultrasonic welding process, to guarantee the sealing of body.
The present invention is through being assembled to metal tapping screw 2 on the anti-burst weak location intake duct welding part 12 place's tapping screw preset holes 13 on the body 1; Utilize the high-tensile of metal tapping screw 2 to reach this position, place stress of reduction and concentrate, thereby realize improving the anti-burst intensity of body.Because the tapping screw preset holes 13 on the body 1 communicates with intake duct 14, therefore in engine intake process, having a certain amount of gas is leaked to body 1 outside through tapping screw preset holes 13, thereby can influence engine performance again.Sealing blanking cover 3 is exactly to be used for sealing the gas in the tapping screw preset holes 13, thereby realizes the sealability of body 1 internal gas.
Use the present invention can effectively reduce the region of stress concentration stress value on the body 1, for example accompanying drawing structure intake manifold stress value can be reduced to 70Mpa from 195.5Mpa, and anti-burst pressure can be promoted to 9.5bar from 4.5bar.Through actual explosion test proof, use the present invention can effectively improve the whole anti-burst performance 3-8bar of plastic air intake manifold, use the present invention can realize increasing the purpose of the performance boost that reaches bigger through less cost.
Claims (3)
1. plastic air intake manifold that anti-burst intensity is high; Comprise body (1); On body, be provided with four intake ducts (14) side by side, intake duct is made up of the two halves butt welding, it is characterized in that: the welding part (12) of two adjacent intake ducts on said body (1) is respectively equipped with tapping screw preset holes (13); Each tapping screw preset holes is used to assemble a metal tapping screw (2), and this metal tapping screw is connected with the two halves that constitute intake duct; The end of each tapping screw preset holes (13) and a sealing blanking cover (3) are connected.
2. the high plastic air intake manifold of a kind of anti-burst intensity according to claim 1, it is characterized in that: the material of said sealing blanking cover (3) is plastics, and is identical with the material of said body (1).
3. the high plastic air intake manifold of a kind of anti-burst intensity according to claim 1 and 2 is characterized in that: said sealing blanking cover (3) is welded to the end of said tapping screw preset holes (13) through ultrasonic welding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100474831A CN102536549A (en) | 2012-02-28 | 2012-02-28 | Plastic air intake manifold with high explosion resistant strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100474831A CN102536549A (en) | 2012-02-28 | 2012-02-28 | Plastic air intake manifold with high explosion resistant strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102536549A true CN102536549A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100474831A Pending CN102536549A (en) | 2012-02-28 | 2012-02-28 | Plastic air intake manifold with high explosion resistant strength |
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| CN (1) | CN102536549A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181147A (en) * | 2017-12-22 | 2018-06-19 | 重庆长安汽车股份有限公司 | A kind of plastic air intake manifold performance test standard body |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6045771A (en) * | 1983-08-23 | 1985-03-12 | Suriibondo:Kk | Method of manufacturing intake-manifold |
| JPS60119360A (en) * | 1983-11-30 | 1985-06-26 | Fuso Light Alloys Co Ltd | Intake menifold of engine |
| US4925510A (en) * | 1985-08-12 | 1990-05-15 | Ryobi Ltd. | Metal parts joint structure and method for producing the same |
| US6321708B1 (en) * | 1998-10-08 | 2001-11-27 | Alusuisse Technology & Management Ltd. | Inlet manifold |
| CN101720383A (en) * | 2007-05-30 | 2010-06-02 | 本田技研工业株式会社 | Air intake manifold for internal combustion engine |
-
2012
- 2012-02-28 CN CN2012100474831A patent/CN102536549A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6045771A (en) * | 1983-08-23 | 1985-03-12 | Suriibondo:Kk | Method of manufacturing intake-manifold |
| JPS60119360A (en) * | 1983-11-30 | 1985-06-26 | Fuso Light Alloys Co Ltd | Intake menifold of engine |
| US4925510A (en) * | 1985-08-12 | 1990-05-15 | Ryobi Ltd. | Metal parts joint structure and method for producing the same |
| US6321708B1 (en) * | 1998-10-08 | 2001-11-27 | Alusuisse Technology & Management Ltd. | Inlet manifold |
| CN101720383A (en) * | 2007-05-30 | 2010-06-02 | 本田技研工业株式会社 | Air intake manifold for internal combustion engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181147A (en) * | 2017-12-22 | 2018-06-19 | 重庆长安汽车股份有限公司 | A kind of plastic air intake manifold performance test standard body |
| CN108181147B (en) * | 2017-12-22 | 2021-02-05 | 重庆长安汽车股份有限公司 | Standard body for performance test of plastic intake manifold |
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Application publication date: 20120704 |