CN201714523U - Intake manifold used for automobile engine - Google Patents
Intake manifold used for automobile engine Download PDFInfo
- Publication number
- CN201714523U CN201714523U CN2010202608292U CN201020260829U CN201714523U CN 201714523 U CN201714523 U CN 201714523U CN 2010202608292 U CN2010202608292 U CN 2010202608292U CN 201020260829 U CN201020260829 U CN 201020260829U CN 201714523 U CN201714523 U CN 201714523U
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- intake manifold
- resonant cavity
- branch
- air passage
- engine
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- 238000005452 bending Methods 0.000 claims abstract description 6
- 230000001133 acceleration Effects 0.000 abstract description 6
- 230000005855 radiation Effects 0.000 abstract description 3
- 230000004308 accommodation Effects 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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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- Characterised By The Charging Evacuation (AREA)
Abstract
一种用于汽车发动机的进气歧管，所述进气歧管包括进气入口、分支气道、主谐振腔和辅助谐振腔，分支气道为多根弯曲的管道，所述主谐振腔设置在进气入口和分支气道之间，所述辅助谐振腔设置在分支气道的弯曲部形成的容纳空间内，所述主谐振腔和辅助谐振腔之间通过谐振管相通。本实用新型的进气歧管改善了发动机中低速出现的扭矩“凹坑”现象，保证整个发动机扭矩曲线的平滑性，使得整车获得优越的加速性能。并且，本实用新型将辅助谐振腔安装在分支气道的弯曲空间内极大地实现了进气歧管整体结构的紧凑性，一方面使得整个歧管总成的刚性变大，从而提高了抗振动的能力，另一方面使得总成的表面积做到最小化，从而有效地减小了噪音辐射水平。
An intake manifold for an automobile engine, the intake manifold includes an intake inlet, a branch air passage, a main resonant cavity and an auxiliary resonant cavity, the branch air passage is a plurality of curved pipes, and the main resonant cavity It is arranged between the intake inlet and the branch air passage, the auxiliary resonant cavity is arranged in the accommodation space formed by the bending part of the branch air passage, and the main resonant cavity communicates with the auxiliary resonant cavity through a resonant tube. The intake manifold of the utility model improves the torque "pit" phenomenon in the low speed of the engine, ensures the smoothness of the entire engine torque curve, and makes the whole vehicle obtain superior acceleration performance. Moreover, the utility model installs the auxiliary resonant cavity in the bending space of the branch air passage, which greatly realizes the compactness of the overall structure of the intake manifold. On the one hand, the rigidity of the entire manifold assembly is increased, thereby improving the vibration resistance. On the other hand, the surface area of the assembly is minimized, which effectively reduces the noise radiation level.
Description
Technical field
The utility model relates to a kind of intake manifold that is used for motor car engine, is applicable on the motor car engine of various discharge capacities.
Background technique
The technical development of modern motor is under the prerequisite that does not improve its cost and fuel economy, more and more pursue engine power performance, the design of intake manifold is then closely bound up with engine power performance, and power performance also is reflected on the acceleration performance of car load.
Usually, intake manifold is in design for low speed torque, Maximum Torque and the peak output of balanced engine, can on the air flue resonant cavity parameter of manifold, be optimized, in any case but optimize, for example adopt variable-length intake manifold, always can run into the bust phenomenon of moment of torsion under certain middle and slow speed of revolution inevitably.Reason is: the pressure wave reflection of air inlet is transmitted and the phenomenon of positive and negative counteracting just in time occurred under this rotating speed, thereby has reduced the charging efficiency of motor, the phenomenon of engine output torque " pit " occurs, thereby has damaged engine power performance.
If adopt big volume resonant cavity, though can partly address this problem, make torque characteristics relatively more along sliding, in the time of still can causing car load to quicken again, the response lag of throttle, thus sacrificed acceleration performance.
The model utility content
Become deficiencys such as big, acceleration difference for the intake manifold footprint that solves existing automobile, the utility model provides a kind of compact structure, intake manifold that the engine output torque characteristic is good.
The technological scheme that the utility model adopted is: described intake manifold comprises the air inlet inlet, divides branch airway, main resonance cavity and auxiliary resonance chamber, dividing branch airway is the pipeline of many bendings, described main resonance cavity is arranged on the air inlet inlet and divides between the branch airway, described auxiliary resonance chamber is arranged in the holding space that the curved part of branch branch airway forms, and communicates by resonatron between described main resonance cavity and the auxiliary resonance chamber.
Preferably, the volume in described auxiliary resonance chamber is 0.5～2 times of motor car engine discharge capacity.
Preferably, the volume of described main resonance cavity is 0.8～1.2 times of motor car engine discharge capacity.
Preferably, the diameter of described resonatron is 10～40mm.
Preferably, the length of described resonatron is 40～120mm.
Preferably, described minute branch airway is 3～12.
Preferably, described minute branch airway is 4.
Preferably, described auxiliary resonance chamber is arranged on that wherein at least one divides in the holding space of branch airway.
Intake manifold of the present utility model has been improved moment of torsion " pit " phenomenon that low speed occurs in the motor, guarantees the flatness of whole engine torque curve, makes car load obtain superior acceleration performance.And, the utility model is installed in the auxiliary resonance chamber in the curved space of branch branch airway and has greatly realized the integrally-built compactedness of intake manifold, make the rigidity of whole manifold assembly become big on the one hand, thereby improved the ability of anti-vibration, make the surface area of assembly accomplish to minimize on the other hand, thereby reduced the noise radiation level effectively.
Description of drawings
Fig. 1 is the overall structure schematic representation of the utility model intake manifold;
Fig. 2 is a kind of embodiment's of the utility model intake manifold a structural representation;
Fig. 3 is the sectional view of Fig. 2;
Fig. 4 is an intake manifold process chart of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the intake manifold that is used for motor car engine that the utility model provides is described in further detail:
The intake manifold that the utility model provides comprises the air inlet inlet, divides branch airway, main resonance cavity and auxiliary resonance chamber, is provided with main resonance cavity between air inlet inlet and the branch branch airway, and this main resonance cavity enters the mouth and divides between the branch airway with air inlet and communicates.The auxiliary resonance chamber is arranged in the holding space that the curved part of branch branch airway forms, and communicates by resonatron between main resonance cavity and the auxiliary resonance chamber.
As Figure 1-3, be a kind of embodiment's of the utility model intake manifold structural representation.This intake manifold comprises air inlet inlet 1, divides branch airway 2 (comprising four branch branch airway 21-24), main resonance cavity 3, auxiliary resonance chamber 4 and resonatron 5, and present embodiment is a four cylinder engine, so this intake manifold comprises four branch branch airway.The number of branch branch airway is not limited to the number of present embodiment, and the branch branch airway number of intake manifold is determined according to the automobile engine cylinder number, is preferably 3～12.
The utility model is arranged on auxiliary resonance chamber 4 in the holding space of branch branch airway 2 bendings and has greatly realized the integrally-built compactedness of intake manifold, make the rigidity of whole manifold assembly become big on the one hand, thereby improved the ability of anti-vibration, make the surface area of assembly accomplish to minimize on the other hand, thereby reduced the noise radiation level effectively.If auxiliary resonance chamber 4 is arranged on other positions, can make that integrated manifold is loosely organized, the space occupy-place is big, and rigidity is little, and surface area is big too.Auxiliary resonance of the present utility model chamber 4 is not limited to the mode of holding that present embodiment limits, and can be contained in one of them curved space of dividing branch airway, also can be contained in the curved space of any minute branch airway.
The volume of main resonance cavity 3 of the present utility model is for the requirement of the speed of response that satisfies throttle, accomplishes as much as possible for a short time, makes motor obtain throttle speed of response faster.Preferably, the volume settings of main resonance cavity 3 is this engine displacement of 0.8～1.2 times.Engine displacement is the summation of each cylinder working volume of motor, is the product that displacement per cylinder Vh and cylinder are counted i, and engine displacement VL=Vh * i is in the formula: the Vh-displacement; The i-number of cylinders.
The pressure wave that auxiliary resonance of the present utility model chamber 4 makes under specific rotating speed positive and negative counteracting originally becomes the resonance wave of mutual superposition, has realized the harmonic wave supercharging, has improved the total amount of air inlet, thereby has improved engine output torque.Middle low velocity zone moment of torsion has been improved in auxiliary resonance of the present utility model chamber 4, but volume need satisfy certain condition: if do too greatly, can make resonance occur in more low-speed region, not reach the purpose of improving engine performance, can make that also whole manifold space occupy-place is too big, structure is compact inadequately.On the other hand,, can make that then pressure wave reflection transmission vibration is excessive, can't realize the harmonic wave supercharging under the specific rotation speeds, not reach the purpose of improving engine performance equally if the volume in auxiliary resonance chamber is too little.For this reason, the volume in auxiliary resonance chamber 4 need be taken all factors into consideration, and selects suitable size.Preferably, the volume settings in auxiliary resonance chamber 4 is this engine displacement of 0.5～2 times.
Resonatron 5 of the present utility model is connected between main resonance cavity 3 and the auxiliary resonance chamber 4, makes to communicate between main resonance cavity 3 and the auxiliary resonance chamber 4, thereby has changed the pressure wave of air inlet.In order to make the frequency that changes generation resonance only concentrate in moment of torsion " pit " scope of specific needs improvement, and can not exert an influence to the torque characteristics of other speed range, the length of resonatron 5 and diameter need carry out special adjustment, the frequency that resonance need to guarantee takes place only concentrates in moment of torsion " pit " scope that needs to improve, and can not exert an influence to the torque characteristics of other speed range.The purpose of the length of resonatron 5 and diameter adjustment has guaranteed the flatness of whole engine torque curve, makes car load obtain superior acceleration performance.Preferably, the adjustment scope of resonatron is set at diameter 10～40mm, length 40～120mm.In use, the diameter of resonatron and length are adjusted in this setting range, select the numerical value of suitable this motor.
As shown in Figure 4, be intake manifold process chart of the present utility model, air is from the other air inlet A (solid line the figure) of the side of intake manifold air inlet inlet 1, enter main resonance cavity 3, enter (embodiment is four cylinder engine, and dividing branch airway is four) among each minute branch airway 21-24 respectively according to each cylinder working order of motor again.When gas in air flue during transmitting moving, the reflected pressure ripple B (dotted line among the figure) of its generation gets back to main resonance cavity 3, because the existence in resonatron 5 and auxiliary resonance chamber 4, the reflected pressure ripple continues to flow into auxiliary resonance chamber 4 by resonatron 5, in auxiliary resonance chamber 4, launch once more then, and be delivered to main resonance cavity 3, the pressure wave of secondary reflection just produces stack with original intake pressure wave again, therefore increased the instantaneous pressure of air inlet, produce the effect of resonance pressure charging, this resonance pressure charging has directly promoted the increase of air inflow, thereby has finally realized the increase of charging efficiency in the engine cylinder, the increase that has brought engine output torque.
Although the utility model is to be described by above-mentioned preferred embodiment, but it realizes only being not limited to above-mentioned mode of execution, should be realized that under the situation that does not break away from the utility model spirit and scope those skilled in the art can make different variations and modification to the utility model.
Claims (8)
1. intake manifold that is used for motor car engine, it is characterized in that: described intake manifold comprises the air inlet inlet, divides branch airway, main resonance cavity and auxiliary resonance chamber, dividing branch airway is the pipeline of many bendings, described main resonance cavity is arranged on the air inlet inlet and divides between the branch airway, described auxiliary resonance chamber is arranged in the holding space that the curved part of branch branch airway forms, and communicates by resonatron between described main resonance cavity and the auxiliary resonance chamber.
2. intake manifold according to claim 1 is characterized in that: the volume in described auxiliary resonance chamber is 0.5～2 times of motor car engine discharge capacity.
3. intake manifold according to claim 1 is characterized in that: the volume of described main resonance cavity is 0.8～1.2 times of motor car engine discharge capacity.
4. according to any one described intake manifold of claim 1-3, it is characterized in that: the diameter of described resonatron is 10～40mm.
5. according to any one described intake manifold of claim 1-3, it is characterized in that: the length of described resonatron is 40～120mm.
6. according to any one described intake manifold of claim 1-3, it is characterized in that: branch airway was 3～12 in described minute.
7. according to any one described intake manifold of claim 1-3, it is characterized in that: branch airway was 4 in described minute.
8. intake manifold according to claim 1 is characterized in that: described auxiliary resonance chamber is arranged on wherein at least one holding space that divides branch airway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202608292U CN201714523U (en) | 2010-07-14 | 2010-07-14 | Intake manifold used for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202608292U CN201714523U (en) | 2010-07-14 | 2010-07-14 | Intake manifold used for automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201714523U true CN201714523U (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202608292U Expired - Fee Related CN201714523U (en) | 2010-07-14 | 2010-07-14 | Intake manifold used for automobile engine |
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| Country | Link |
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| CN (1) | CN201714523U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678401A (en) * | 2012-05-28 | 2012-09-19 | 奇瑞汽车股份有限公司 | Air intake manifold with auxiliary resonant cavity |
| CN106930874A (en) * | 2017-01-25 | 2017-07-07 | 宁波神通模塑有限公司 | Inlet manifold with resonator |
| CN109268173A (en) * | 2018-11-14 | 2019-01-25 | 南京工程学院 | A kind of induction system of internal combustion engine of stepless variable |
-
2010
- 2010-07-14 CN CN2010202608292U patent/CN201714523U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678401A (en) * | 2012-05-28 | 2012-09-19 | 奇瑞汽车股份有限公司 | Air intake manifold with auxiliary resonant cavity |
| 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 |
| CN109268173A (en) * | 2018-11-14 | 2019-01-25 | 南京工程学院 | A kind of induction system of internal combustion engine of stepless variable |
| CN109268173B (en) * | 2018-11-14 | 2023-12-19 | 南京工程学院 | Stepless variable air inlet system of internal combustion engine |
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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: 20110119 Termination date: 20170714 |