CN102678401A - Air intake manifold with auxiliary resonant cavity - Google Patents
Air intake manifold with auxiliary resonant cavity Download PDFInfo
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- CN102678401A CN102678401A CN2012101674040A CN201210167404A CN102678401A CN 102678401 A CN102678401 A CN 102678401A CN 2012101674040 A CN2012101674040 A CN 2012101674040A CN 201210167404 A CN201210167404 A CN 201210167404A CN 102678401 A CN102678401 A CN 102678401A
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- resonant cavity
- intake manifold
- secondary resonant
- cavity
- air intake
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- 238000013461 design Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010003549 asthenia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention relates to an air intake manifold with an auxiliary resonant cavity, which is characterized in that a main resonant cavity (1) and the auxiliary resonant cavity (2) are arranged on the air intake manifold, wherein the main resonant cavity (1) provided with an airflow inlet and an airflow outlet is further communicated with the auxiliary resonant cavity (2). The air intake manifold has the advantages that according a Helmholtz principle, the auxiliary resonant cavity is added to the air intake manifold of the best length, so that the resonant energy within a certain rotating speed range and the air intake quantity of an engine is increased, the resonant energy and the air charge efficiency are improved, and the air charge quantity required by other rotating speeds is not influenced.
Description
Technical field
The present invention relates to a kind of intake manifold, especially relate to the secondary resonant cavity intake manifold of a kind of natural aspiration petrol engine band.
Background technique
Because the influence of gas handling system length and caliber, in the petrolic broad working speed scope of natural aspiration, the variation of charging efficiency is also very violent.According to the research and experiment result, under the certain condition of intake manifold length, because the difference of engine speed frequency, the situation of reduction will inevitably appear in charging efficiency in certain section rotating speed.Because the influence of air inlet resonance can't form a zone of high pressure at the intake valve place in certain section speed-frequency, can't utilize resonance to promote the charging efficiency in this section rotating speed.Solve this type of situation, generally can adopt the length of many cover air inlet manifolds and the composite test scheme of caliber to develop, draw best of breed.Development cost is high, and efficient is low, and the situation that can occur attending to one thing and lose sight of another.
Summary of the invention
The present invention has designed a kind of secondary resonant cavity intake manifold; The technical problem of its solution is: natural aspiration petrol engine external characteristics performance can't be avoided in a certain section speed range, can occurring descending at present; This is owing to naturally aspirated engine air inlet resonance causes; Present stage can only attend to one thing and lose sight of another through optimizing the means compensating loss of energys such as intake manifold length or caliber unavoidably.
In order to solve the technical problem of above-mentioned existence, the present invention has adopted following scheme:
A kind of secondary resonant cavity intake manifold is provided with main resonance cavity (1) and secondary resonant cavity (2) on intake manifold, main resonance cavity (1) has air flow inlet and flow outlet, and main resonance cavity (1) also is connected with secondary resonant cavity (2).
Further, main resonance cavity (1) is communicated with through connecting passage (3) with secondary resonant cavity (2).
Further, according to the rotation speed change of motor, the length of connecting passage (3) and diameter are variable.
Further, according to the rotation speed change of motor, secondary resonant cavity (2) volume is variable.
Further, relation: V=Nf below secondary resonant cavity (2) volume and petrol engine speed-frequency exist, V vice resonant cavity volume wherein, f representes the petrol engine speed-frequency, N representes constant.
This pair resonant cavity intake manifold is compared with traditional intake manifold, has following beneficial effect:
(1) the present invention increases a secondary resonant cavity according to the Helmholtz principle on the optimum length intake manifold, increases the resonant energy of a certain section speed range; Increase the air inflow of motor; Improve resonant energy, improve charging efficiency, but do not influence the charging efficiency of other rotating speeds.
(2) simplicity of design of the present invention is with low cost.With respect to other technologies, need not change the intake manifold body, simplicity of design is reliable, and the cycle is short, and cost is low.
Description of drawings
Fig. 1: the structural representation of the secondary resonant cavity intake manifold of the present invention;
Fig. 2: the outline drawing of the secondary resonant cavity intake manifold of the present invention;
Fig. 3: the sectional view of the secondary resonant cavity intake manifold of the present invention;
Fig. 4: main resonance cavity is connected schematic representation with secondary resonant cavity among the present invention.
Description of reference numerals:
1-main resonance cavity; 2-secondary resonant cavity; 3-connecting passage.
Embodiment
Below in conjunction with Fig. 1 to Fig. 4, the present invention is further specified:
As shown in Figure 1, a kind of secondary resonant cavity intake manifold is provided with main resonance cavity 1 and secondary resonant cavity 2 on intake manifold, and main resonance cavity 1 has air flow inlet and flow outlet, and main resonance cavity 1 also is connected with secondary resonant cavity 2.2 of secondary resonant cavitys are communicated with main resonance cavity 1, thereby in motor section speed range, can improve resonant energy, the raising charging efficiency, but do not influence the charging efficiency of other rotating speeds.
As shown in Figures 2 and 3, change the length and the diameter of secondary resonant cavity volume, secondary resonant cavity and main resonance cavity connecting passage, need not change the intake manifold design on a large scale for the performance that promotes certain a bit of rotating speed according to motor section rate performance demand.
As shown in Figure 4, main resonance cavity 1 is communicated with through connecting passage 3 with secondary resonant cavity 2.Satisfying secondary resonant cavity of increase on the intake manifold main resonance cavity of motor optimum performance, structure and technology are all quite simple.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obvious realization of the present invention does not receive the restriction of aforesaid way; As long as the various improvement of having adopted method design of the present invention and technological scheme to carry out; Or design of the present invention and technological scheme are directly applied to other occasion without improving, all in protection scope of the present invention.
Claims (7)
1. secondary resonant cavity intake manifold, it is characterized in that: on intake manifold, be provided with main resonance cavity (1) and secondary resonant cavity (2), main resonance cavity (1) has air flow inlet and flow outlet, and main resonance cavity (1) also is connected with secondary resonant cavity (2).
2. according to the said secondary resonant cavity intake manifold of claim 1, it is characterized in that: main resonance cavity (1) is communicated with through connecting passage (3) with secondary resonant cavity (2).
3. according to claim 1 or 2 said secondary resonant cavity intake manifold, it is characterized in that: according to the rotation speed change of motor, the length of connecting passage (3) and diameter are variable.
4. according to claim 1 or 2 said secondary resonant cavity intake manifold, it is characterized in that: according to the rotation speed change of motor, secondary resonant cavity (2) volume is variable.
5. according to the said secondary resonant cavity intake manifold of claim 4; It is characterized in that: relation: V=Nf below secondary resonant cavity (2) volume and petrol engine speed-frequency exist; V vice resonant cavity volume wherein, f representes the petrol engine speed-frequency, N representes constant.
6. according to the said secondary resonant cavity intake manifold of claim 3, it is characterized in that: according to the rotation speed change of motor, secondary resonant cavity (2) volume is variable.
7. according to the said secondary resonant cavity intake manifold of claim 6; It is characterized in that: relation: V=Nf below secondary resonant cavity (2) volume and petrol engine speed-frequency exist; V vice resonant cavity volume wherein, f representes the petrol engine speed-frequency, N representes constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101674040A CN102678401A (en) | 2012-05-28 | 2012-05-28 | Air intake manifold with auxiliary resonant cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101674040A CN102678401A (en) | 2012-05-28 | 2012-05-28 | Air intake manifold with auxiliary resonant cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102678401A true CN102678401A (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101674040A Pending CN102678401A (en) | 2012-05-28 | 2012-05-28 | Air intake manifold with auxiliary resonant cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102678401A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930874A (en) * | 2017-01-25 | 2017-07-07 | 宁波神通模塑有限公司 | Inlet manifold with resonator |
| CN109209614A (en) * | 2018-10-16 | 2019-01-15 | 合肥工业大学 | A kind of equation motorcycle race engine aspirating system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040173175A1 (en) * | 2003-03-04 | 2004-09-09 | Kostun John D. | Helmholtz resonator |
| CN101333985A (en) * | 2007-06-28 | 2008-12-31 | 株式会社电装 | Torque increase resonator |
| CN201177561Y (en) * | 2008-03-24 | 2009-01-07 | 重庆长安汽车股份有限公司 | Frequency adjustable type air inlet silencing apparatus test device |
| CN101555845A (en) * | 2009-05-18 | 2009-10-14 | 北京航空航天大学 | Automatic adjustment resonance device |
| CN101793213A (en) * | 2009-02-04 | 2010-08-04 | 通用汽车环球科技运作公司 | Noise reducing system |
| CN201714523U (en) * | 2010-07-14 | 2011-01-19 | 上海通用汽车有限公司 | Intake manifold used for automobile engine |
-
2012
- 2012-05-28 CN CN2012101674040A patent/CN102678401A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040173175A1 (en) * | 2003-03-04 | 2004-09-09 | Kostun John D. | Helmholtz resonator |
| CN101333985A (en) * | 2007-06-28 | 2008-12-31 | 株式会社电装 | Torque increase resonator |
| CN201177561Y (en) * | 2008-03-24 | 2009-01-07 | 重庆长安汽车股份有限公司 | Frequency adjustable type air inlet silencing apparatus test device |
| CN101793213A (en) * | 2009-02-04 | 2010-08-04 | 通用汽车环球科技运作公司 | Noise reducing system |
| CN101555845A (en) * | 2009-05-18 | 2009-10-14 | 北京航空航天大学 | Automatic adjustment resonance device |
| CN201714523U (en) * | 2010-07-14 | 2011-01-19 | 上海通用汽车有限公司 | Intake manifold used for automobile engine |
Non-Patent Citations (1)
| Title |
|---|
| 夏有禹: "《车用柴油机的涡轮增压》", 《汽车资料》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930874A (en) * | 2017-01-25 | 2017-07-07 | 宁波神通模塑有限公司 | Inlet manifold with resonator |
| CN106930874B (en) * | 2017-01-25 | 2022-11-22 | 神通科技集团股份有限公司 | Intake manifold with resonant cavity |
| CN109209614A (en) * | 2018-10-16 | 2019-01-15 | 合肥工业大学 | A kind of equation motorcycle race engine aspirating system |
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Application publication date: 20120919 |