CN206929020U - A kind of variable air inlet manifold for engine - Google Patents
A kind of variable air inlet manifold for engine Download PDFInfo
- Publication number
- CN206929020U CN206929020U CN201720691117.8U CN201720691117U CN206929020U CN 206929020 U CN206929020 U CN 206929020U CN 201720691117 U CN201720691117 U CN 201720691117U CN 206929020 U CN206929020 U CN 206929020U
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- China
- Prior art keywords
- pipe
- engine
- guide rail
- inlet manifold
- air inlet
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Abstract
The utility model discloses a kind of variable air inlet manifold for engine, it includes outer tube, hydraulic means and device the elastic curved pipe in outer tube chamber, the both ends of the outer tube are respectively connected with a guide rail pipe, guide rail is installed on the inwall of guide rail pipe, space washer is provided with guide rail pipe, the both ends of the curved pipe of elasticity are arranged on guide rail through space washer, the hydraulic cavities of closing are formed between the curved pipe of elasticity and guide rail pipe, hydraulic cavities are connected by hydraulic oil pipe with hydraulic means, and hydraulic means is connected with ECU.Inlet manifold provided by the utility model reaches the effect that its length can be with the different rotating speeds of engine to adjust, so that engine can keep optimal intake efficiency under each rotating speed, improves the economy, dynamic property and emission performance of engine.
Description
Technical field
A kind of variable air inlet manifold for engine is the utility model is related to, belongs to part of automobile engine technical field.
Background technology
Inlet manifold refers to that one end is connected with inlet valve, the pipeline that one end is connected with the air inlet resonant chamber after inlet manifold,
It is one of core component of automobile engine, and its Core Feature is to provide sufficient and uniform gaseous mixture for each cylinder of engine,
Therefore it is the key factor for influenceing engine power performance.The length of inlet manifold and air inlet resonance effect, intake resistance and enter
Gas mixed is relevant, and the length of inlet manifold is key parameter when designing inlet manifold.In engine working process
In, with the opening and closing of inlet valve, pressure oscillation present in inlet manifold makes gas produce concussion, if gas in inlet manifold
Concussion frequency and IC Intake Valve Closes frequency reach resonance, the pressure crest value height of inlet valve port is reached when inlet valve is soon closed
In positive normal pressure Reeb, air inflow can be significantly improved, produces resonant intake system effect.The resonant frequency of short inlet manifold is higher, progress
The resonant frequency of gas manifold is relatively low, therefore short inlet manifold is applicable rev-happy engine, and long inlet manifold is more suitable for low turn
Fast engine.So in order to meet engine under different rotating speeds, load to the different demands of air inflow, general requirement as far as possible
Engine is equipped with the inlet manifold of tubbiness under high rotating speed, big load；Elongated air inlet discrimination is equipped with middle and slow speed of revolution, middle Smaller load
Pipe.
Many engines are equipped with variable intake manifold at present, and variable intake manifold of the prior art is mainly by adopting
Different rotating speeds, load of the variable intake manifold in engine are controlled with a set of inlet manifold variable system with conversion valve block
It is lower that using different length, the inlet manifold of thickness, the system can only allow inlet manifold to be changed between the two with most short most long, but
Ideally engine corresponds to different manifold lengths under different rotating speeds, but the knot of these existing inlet manifold
The classification that structure design is all limited only to manifold length is variable, and can not realize the continuous variable and engine speed pair of manifold length
Should, so as to realize that the charging efficiency under each rotating speed of engine maximizes, it is impossible to engine is protected under each rotating speed
Hold optimal intake efficiency.
Therefore, it is necessary to a kind of motor intake manifold of length continuous variable is provided to overcome drawbacks described above.
Utility model content
In view of this, a kind of variable air inlet manifold for engine is provided for above-mentioned the deficiencies in the prior art, the utility model,
It changes the conversion for two kinds of length that traditional inlet manifold is fixed, and reaching inlet manifold can turn with the difference of engine
Speed adjusts different length, so that engine can keep optimal intake efficiency under each rotating speed, improves the warp of engine
Ji property, dynamic property and emission performance.
To solve above technical problem, the technical solution of the utility model is to use a kind of variable air inlet manifold for engine,
It includes outer tube, hydraulic means and device the elastic curved pipe in outer tube chamber, and the both ends of the outer tube are respectively connected with one
Guide rail pipe, guide rail is installed on the inwall of guide rail pipe, is provided with space washer in guide rail pipe, the both ends of the curved pipe of elasticity are through fixed
Position packing ring is arranged on guide rail, and the hydraulic cavities of closing are formed between the curved pipe of elasticity and guide rail pipe, and hydraulic cavities pass through hydraulic oil pipe
It is connected with hydraulic means, hydraulic means is connected with ECU.
The guide rail pipe at outer tube both ends, one is connected with inlet chamber, and one is connected with engine cylinder cap air inlet, air inlet discrimination
The effective length of pipe is the length of the curved pipe of elasticity in outer tube.
ECU is vehicle electronic control unit, and the signal that it can gather each sensor carries out computing, and operation result is changed
For control signal, the operation of controlled device is controlled.
Operation principle of the present utility model is：In the case of engine idling, the curved pipe of elasticity is in case of bending, liquid
Pressure device is in off position, is circulated at this moment air is from guide rail pipe to the curved pipe of elasticity and finally flows to engine, air exists
Flow through the curved pipe of elasticity during this due to pipeline be flexure type so as to extend distance and inlet period, adapted to engine
Air inlet requirement during idling；When the rotating speed of engine gradually rises, pass through engine speed sensor, TPS
Etc. detecting engine current working, hydraulic means is controlled gradually to be pressurizeed to hydraulic cavities after then being calculated by ECU, hydraulic cavities exist
Promote the curved pipe of elasticity mobile to both sides in guide rail pipe while pressure increases so that the elastic curved pipe in outer tube slowly
Reduce flexibility, the distance for causing air flow through the curved pipe of elasticity shortens, and the time reduces and adapts to present engine rotating speed；When starting
When elastic curved pipe is moved to the guide rail outermost end of guide rail pipe at high speeds, at this moment elastic curved pipe moves to both ends to be become machine
Cheng Yigen straight pipelines, there is no flexibility when air flows through, air inlet distance is most short, and the time is minimum, has adapted to engine in high speed shape
Air inlet requirement under state；During deceleration, hydraulic means depressurizes under the control of automobile ECU, so that the curved pipe of elasticity is in restoring force
In the presence of increase the flexibility of the curved pipe of elasticity, flexibility reaches when the end of the final curved pipe of elasticity reaches at space washer
It is maximum.
Further, the outer tube cavity is cuboid.
Further, the outer tube is aluminum outer tube.
Further, the guide rail pipe is cylindrical tube.
Further, the curved pipe of elasticity is made using the good rubber of high temperature resistant, ductility and is cladded with elastic wire.
Further, guide plate is provided with the outer lumen body, guide effect can be played to curved the flexible of pipe of elasticity,
Avoid winding.
Preferably, the guide plate is arranged on the diagonal positions in outer lumen body.
Further, the hydraulic means is arranged in outer lumen body, makes profile of the present utility model more attractive in appearance.
In summary, variable air inlet manifold for engine of the present utility model can conveniently realize the continuous of manifold length can
Become, and by the manifold length of continuously adjustable, can make it that engine, can be by converting manifold under any rotating speed
Length realize the matching of air inflow and engine speed, engine is attained by under each rotating speed maximum inflation effect
Rate, so as to improve dynamic property of the engine under any rotating speed.Moreover, the continuous variable of manifold length also enables intake velocity
It is enough correspondingly to convert, so as to improve combustion process, the fuel economy of engine is improved, reduces the discharge of waste gas.
The beneficial effects of the utility model are：A kind of variable air inlet manifold for engine provided by the utility model, save empty
Between, manufacturing cost is relatively low, and inlet manifold can adjust the different length of inlet manifold with the different rotating speeds of engine, with suitable
Answer engine under different rotating speeds needed for air inflow and inlet period, so as to improve the economy of engine, dynamic property and
Emission performance.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model preferred embodiment, and the extreme length of manifold body is shown in figure；
Fig. 2 is the structural representation of the utility model preferred embodiment, and the shortest length of manifold body is shown in figure.
Marginal data：
1st, outer tube；2nd, hydraulic means；3rd, the curved pipe of elasticity；4th, guide rail pipe；5th, guide rail；6th, space washer；7th, hydraulic cavities；8、
Hydraulic oil pipe；9th, guide plate.
Embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with the accompanying drawings and have
The utility model is described in further detail for body embodiment.Following embodiments are only the sides of being preferable to carry out of the present utility model
Formula, it is noted that following embodiments are not construed as should to limitation of the present utility model, the scope of protection of the utility model
It is defined by claim limited range.For those skilled in the art, this practicality is not being departed from newly
In the spirit and scope of type, some improvements and modifications can also be made, these improvements and modifications also should be regarded as of the present utility model
Protection domain.
As shown in Figure 1 and Figure 2, the utility model provides a kind of variable air inlet manifold for engine, it include outer tube 1 and
Hydraulic means 2 of the device in the cavity of outer tube 1 and the curved pipe 3 of elasticity, the both ends of the outer tube 1 are respectively connected with a guide rail pipe 4, led
Guide rail 5 is installed on the inwall of rail pipe 4, space washer 6 is provided with guide rail pipe 4, the both ends of the curved pipe 3 of elasticity pass through locating pad
Circle 6 is arranged on guide rail 5, and the hydraulic cavities 7 of closing are formed between the curved pipe 3 of elasticity and guide rail pipe 4, and hydraulic cavities 7 pass through hydraulic oil
Pipe 8 is connected with hydraulic means 2, and hydraulic means 2 is connected with ECU.
Preferably, the cavity of outer tube 1 is cuboid, and outer tube 1 is process using cast aluminium.
Preferably, guide rail pipe 4 is cylindrical tube.
Preferably, the curved pipe 3 of elasticity is made using the good rubber of high temperature resistant, ductility and is cladded with elastic wire.
Preferably, guide plate 9 is provided with the diagonal positions in the cavity of outer tube 1, can stretching to elastic curved pipe
To guide effect, avoid winding.
Inlet manifold provided by the utility model, the guide rail pipe 4 at its outer tube both ends, one is connected with inlet chamber, one with
Engine cylinder cap air inlet is connected, and the effective length of inlet manifold is the length of the curved pipe of elasticity in outer tube.Its operation principle
For：In the case of engine idling, the curved pipe 3 of elasticity is in case of bending, and hydraulic means 2 is in off position, at this moment
Air eventually flows to engine from guide rail pipe 4 to the inner circulation of the curved pipe 3 of elasticity, and air is flowing through curved this process of pipe 3 of elasticity
In due to pipeline be flexure type so as to extend distance and inlet period, adapted to air inlet requirement during engine idling；When starting
When the rotating speed of machine gradually rises, the current work of engine is detected by engine speed sensor, TPS etc.
Condition, hydraulic means 2 is controlled gradually to be pressurizeed to hydraulic cavities 7 after then being calculated by ECU, hydraulic cavities 7 push away while pressure increases
The curved pipe 3 of dynamic elasticity is mobile to both sides in the guide rail pipe 4 so that the elastic curved pipe 3 in outer tube 1 slowly reduces flexibility, makes
The distance that air flows through the curved pipe 3 of elasticity shortens, and the time reduces and adapts to present engine rotating speed；When engine is in fast state
When the lower curved pipe 3 of elasticity is moved to the guide rail outermost end of guide rail pipe 4, at this moment elastic curved pipe 3 becomes one directly to both ends movement
Pipeline, there is no flexibility when air flows through, air inlet distance is most short, and the time is minimum, has adapted to engine entering at high speeds
Gas requirement；During deceleration, hydraulic means 2 depressurizes under the control of automobile ECU, so that effect of the curved pipe 3 of elasticity in restoring force
The flexibility of elastic curved pipe 3 in lower increase outer tube 1, the end of the final curved pipe of elasticity are bent when reaching at space washer 6
Degree reaches maximum.
In summary, variable air inlet manifold for engine of the present utility model can conveniently realize the continuous of manifold length can
Become, and by the manifold length of continuously adjustable, can make it that engine, can be by converting manifold under any rotating speed
Length realize the matching of air inflow and engine speed, engine is attained by under each rotating speed maximum inflation effect
Rate, so as to improve dynamic property of the engine under any rotating speed.Moreover, the continuous variable of manifold length also enables intake velocity
It is enough correspondingly to convert, so as to improve combustion process, the fuel economy of engine is improved, reduces the discharge of waste gas.
It the above is only the preferred embodiment of the application, make skilled artisans appreciate that or realizing the application.It is right
A variety of modifications of these embodiments will be apparent to one skilled in the art, as defined herein general former
Reason can be realized in other embodiments in the case where not departing from spirit herein or scope.Therefore, the application will not
Be intended to be limited to the embodiments shown herein, and be to fit to it is consistent with principles disclosed herein and features of novelty most
Wide scope.
Claims (8)
- A kind of 1. variable air inlet manifold for engine, it is characterised in that：Including outer tube, hydraulic means and device in outer tube chamber Elastic curved pipe, the both ends of the outer tube are respectively connected with a guide rail pipe, are provided with guide rail on the inwall of guide rail pipe, in guide rail pipe Be provided with space washer, the both ends of the curved pipe of elasticity are arranged on guide rail through space washer, the curved pipe of elasticity and guide rail pipe it Between form the hydraulic cavities of closing, hydraulic cavities are connected by hydraulic oil pipe with hydraulic means, and hydraulic means is connected with ECU.
- A kind of 2. variable air inlet manifold for engine according to claim 1, it is characterised in that：The outer tube cavity is rectangular Body.
- A kind of 3. variable air inlet manifold for engine according to claim 1, it is characterised in that：The outer tube is outside aluminum Pipe.
- A kind of 4. variable air inlet manifold for engine according to claim 1, it is characterised in that：The guide rail pipe is cylinder Pipe.
- A kind of 5. variable air inlet manifold for engine according to claim 1, it is characterised in that：The curved pipe of elasticity is rubber Sebific duct is cladded with elastic wire.
- A kind of 6. variable air inlet manifold for engine according to claim 1, it is characterised in that：Set in the outer lumen body There is guide plate.
- A kind of 7. variable air inlet manifold for engine according to claim 6, it is characterised in that：The guide plate is arranged on outer tube Diagonal positions in cavity.
- A kind of 8. variable air inlet manifold for engine according to claim 1, it is characterised in that：The hydraulic means is arranged on In outer lumen body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720691117.8U CN206929020U (en) | 2017-06-14 | 2017-06-14 | A kind of variable air inlet manifold for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720691117.8U CN206929020U (en) | 2017-06-14 | 2017-06-14 | A kind of variable air inlet manifold for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206929020U true CN206929020U (en) | 2018-01-26 |
Family
ID=61345347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720691117.8U Expired - Fee Related CN206929020U (en) | 2017-06-14 | 2017-06-14 | A kind of variable air inlet manifold for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206929020U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013386A (en) * | 2017-06-14 | 2017-08-04 | 四川工业科技学院 | A kind of variable air inlet manifold for engine |
-
2017
- 2017-06-14 CN CN201720691117.8U patent/CN206929020U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013386A (en) * | 2017-06-14 | 2017-08-04 | 四川工业科技学院 | A kind of variable air inlet manifold for engine |
| CN107013386B (en) * | 2017-06-14 | 2023-05-16 | 四川工业科技学院 | Variable intake manifold of engine |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180126 Termination date: 20200614 |
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| CF01 | Termination of patent right due to non-payment of annual fee |