CN2937527Y - Intake manifold system - Google Patents
Intake manifold system Download PDFInfo
- Publication number
- CN2937527Y CN2937527Y CN 200620044727 CN200620044727U CN2937527Y CN 2937527 Y CN2937527 Y CN 2937527Y CN 200620044727 CN200620044727 CN 200620044727 CN 200620044727 U CN200620044727 U CN 200620044727U CN 2937527 Y CN2937527 Y CN 2937527Y
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- China
- Prior art keywords
- air
- inlet
- air inlet
- pipeline
- inlet cavity
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Abstract
The utility model aims to design an intake manifold system, which can both meet the engine demands on air intake at different working conditions, and realize structure compact and light weight. The system divides the air inlet cavity into a left and a right two separate air inlet cavities, air inlet pipeline connecting to each side cylinder row is extended out on each air inlet cavity, the air inlet pipeline is divided into straight pipeline and bending pipeline, In addition, a power valve is arranged on the straight pipeline, a balance valve is arranged between the separated left and right air inlet cavities, the length of air flow route and the communication and isolation between the two air inlet cavities can be arranged through the open and close of the valves, thus different air supply to the engine is supplied at different working conditions, at the same time, the uniformity and stability of the left and the right cylinders exhausting and inhaling conditions are guaranteed. The intake manifold system can significantly improve the engine's dynamic characteristics, economy and emission performance,.
Description
Technical field
The utility model relates to a kind of automotive engine air intake system, is specifically related to the air intake manifold of automotive engine system.
Background technique
In the existing air intake manifold of automotive engine system, adopt the box gas handling system of voltage stabilizing mostly, as shown in Figure 1: left and right sides cylinder row 2 ', 3 ' intake manifold be communicated as one, whole air-inlet cavity 1 ' volume bigger.Air inlet path (as shown by arrows) can not change with the variation of engine operating condition, can not take into account the high low-speed performance, particularly torsional performance of motor; Though the motor that has also adopts the variable air inlet structure, can only regulate the part operating mode, requirement or structure to the air inlet characteristic in the time of can not taking into account motor senior middle school low speed are too complicated.In addition, most of intake manifold adopt metallic stamping pieces even foundry goods, compare with working of plastics, and it is bigger to have weight, and complicated shortcoming is shaped.
The model utility content
The purpose of this utility model provide a kind of not only can satisfy Under Different Work Condition of Engine the time to the demand of air inlet, simultaneously but also realized compact structure and light-weighted inlet manifold system, also have competitive ability on the cost.
For reaching above-mentioned purpose, inlet manifold system of the present utility model, comprise air-inlet cavity and left and right sides cylinder row, every side cylinder row is formed with several suction ports of equal number, described air-inlet cavity and each suction port all are provided with pipeline connection straight, it is characterized in that: described air-inlet cavity is divided into left and right sides air-inlet cavity by isolating plate, and left air-inlet cavity is communicated with described left side cylinder row's suction port, and right air-inlet cavity is communicated with described right side cylinder row's suction port; Airflow connection about also being provided with an equilibrium valve between the air-inlet cavity of the described left and right sides and being used to open or close between two air-inlet cavitys; Also be provided with dog leg piping separately between described left and right sides air-inlet cavity and the corresponding suction port and be connected, described each also be provided with the power valve on the pipeline straight.
According to above-mentioned conception of the present utility model, be preferably, described equilibrium valve be arranged on isolate described about the tail end of isolating plate of two air-inlet cavitys.
According to above-mentioned conception of the present utility model, be preferably, the starting point of described pipeline straight and the starting point of described dog leg piping intersect and form the air inlet fork, and the terminal point of described pipeline straight and the terminal point of described dog leg piping intersect and formation air inlet convergent point.
According to above-mentioned conception of the present utility model, be preferably, described power valve is arranged between described air inlet fork and the described air inlet convergent point.
According to above-mentioned conception of the present utility model, be preferably, it is characterized in that: described every side cylinder drains into rare two suction ports.
Adopt such structure,, on each air-inlet cavity, extend the air inlet pipeline that is connected with every side cylinder row again, both avoided the air inlet between cylinder to interfere, guaranteed the compactedness of structure simultaneously again owing to two independent air-inlet cavitys about original air-inlet cavity is divided into.
Because the equilibrium valve and the power valve that in intake manifold, are provided with, opening and closing by these valves, can set the length and the connected sum between two air-inlet cavitys of air flow path isolates, can also guarantee the stable homogeneous of left and right sides cylinder row air inlet state simultaneously at motor different air quantity of supply engine under different operating modes like this.This inlet manifold system can significantly improve the power character of motor, Economy and emission performance.
In addition, the piping material of intake manifold is by heat-resisting plastic injection-moulded forming, thereby has realized the light-weight design of part, has improved compactedness, has reduced cost of production.
For further specifying above-mentioned purpose of the present utility model, structural feature and effect, the utility model is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 is the structural representation of existing inlet manifold system.
Fig. 2 is the structural representation according to the utility model inlet manifold system
Embodiment
Be illustrated in figure 2 as the structural representation of the utility model inlet manifold system, be provided with the cylinder row 3,4 of the left and right sides, be formed with suction port 8,9 separately on every side cylinder row 3,4, suction port 8,9 numbers on the both sides cylinder row 3,4 are identical, at least should be formed with two suction ports on every side cylinder row, every side cylinder row has selected three suction ports separately in the present embodiment, and these suction ports 8,9 are connected with the cylinder of motor.
In the utility model, air-inlet cavity 1 in the existing inlet manifold system ' separated by the isolating plate in the utility model 7, thereby with an only air-inlet cavity 1 in original inlet manifold system ' two independent air- inlet cavitys 1,2 about being divided into, left side air-inlet cavity 1 links to each other with left side cylinder row 3, and right air-inlet cavity 2 then links to each other with right side cylinder row 4.In addition, tail end at the isolating plate 7 of separating 1,2 separations of left and right sides air-inlet cavity also is provided with an equilibrium valve 6, and when equilibrium valve 6 cut out, the air-flow of left and right sides air- inlet cavity 1,2 was not connected, after equilibrium valve 6 was opened, the air-flow between the left and right sides air- inlet cavity 1,2 just can be communicated with.Certainly, this equilibrium valve 6 can be arranged on the arbitrary position on the isolating plate 7 of isolating left and right sides air- inlet cavity 1,2, such as isolating plate 7 is divided into two sections, equilibrium valve 6 is arranged on the neutral position of two sections isolating plates and also can, as long as this equilibrium valve 6 can by open or close make left and right sides air- inlet cavity 1,2 airflow connection or isolate just passable, present embodiment selects to be arranged on the tail end of isolating plate 7, is not limited thereto.
In the utility model, left side air-inlet cavity 1 all has two pipelines with each suction port 8 of left side cylinder row 3 and is connected, i.e. pipeline 10 and dog leg piping 11 straight, Placement and the left side symmetry of right air-inlet cavity 2 and each suction port 9 of right side cylinder row 4, this with regard to omitting narration the Placement on the left of describing in detail.Pipeline 10 is that the sectional area of the pipeline of straight line and pipeline is bigger straight, dog leg piping 11 as the term suggests be exactly bending and sectional area pipeline less.Intersection in the starting point of the starting point of pipeline 10 straight and dog leg piping 11 forms air inlet fork 12, the air-flow of left side air-inlet cavity 1 can be divided into the two-way walking at this air inlet fork 12, and form air inlet convergent point 13 in the intersection of the terminal point of the terminal point of pipeline 10 straight and dog leg piping 11, can pool together again at this air inlet convergent point 13 from the air-flow of air inlet fork two-way walking in 12 fens, enter suction port 8 again.The structure that is not always the case between each suction port 8 of left side air-inlet cavity 1 and left side cylinder row 3, same, it also is the same structure that right air-inlet cavity 2 and right side cylinder are arranged between each suction port 9 of 4.
Another one characteristics of the present utility model all are provided with power valve 5 on the pipeline 10 straight at every exactly, and specifically, this power valve 5 is arranged on the pipeline straight 10 between air inlet fork 12 and the air inlet convergent point 13.Like this when power valve 5 is opened, because the pipeline sectional area of pipeline 10 is than dog leg piping 11 big and path weak points straight, therefore most air-flows will be from 12 direct radius vector straight tube roads, 10 walkings of air inlet fork, few part air-flow dog leg piping 11 of then flowing through is entering suction port 8 common after arriving air inlet convergent point 13; And when power valve 5 cut out, air-flow begins to lead to straight the passage of pipeline 10 from air inlet fork 12 can close, and air-flow has only from dog leg piping 11 walkings, entered suction port after arriving air inlet convergent point 13 again.
Describe inlet manifold system of the present utility model below in detail in the working principle that is used for the motor car engine process.
(1) when engine speed is low, equilibrium valve 6 and power valve 5 all keep closed condition, left and right sides air- inlet cavity 1,2 works alone separately, it all is by dog leg piping 11 walkings at air inlet fork 12 that air-flow enters the back from left and right sides air- inlet cavity 1,2, because the pipeline length of dog leg piping 11 is longer, the air inlet path of air-flow arrival left and right side cylinder row 3,4 suction ports 8,9 is also longer like this, and air-flow air inlet cross section by dog leg piping 11 when advancing is less, shown in the thin arrow among Fig. 1, thereby help improving the low speed torque of motor;
(2) when engine speed keeps intermediate range, equilibrium valve 6 is opened, and power valve 5 still keeps cutting out, and left and right sides air- inlet cavity 1,2 is communicated with like this, and the volume of shared air cavity increases, and utilizes the harmonic shock effect, the torsional performance in the time of can improving the medium engine speed zone;
(3) when motor requires full power output, equilibrium valve 6 and power valve 5 are all opened, air-flow enters the back from left and right sides air- inlet cavity 1,2 and directly walks to the bigger pipeline straight 10 of sectional area at air inlet fork 12 most air-flows, few part air-flow dog leg piping 11 of then flowing through, the air inlet path contraction of so most of gas, air flow path is shown in thick arrow among Fig. 1, and at this moment charge flow rate keeps maximum rating, has satisfied the requirement of motor to the full admission amount.
In sum, inlet manifold system of the present utility model is because two independent air-inlet cavitys about being divided into extend the air inlet pipeline that is connected with every side cylinder row again on each air-inlet cavity, both avoided and cylinder between air inlet interfere, guaranteed the compactedness of structure simultaneously again.
Because the equilibrium valve and the power valve that in inlet manifold system, are provided with, opening and closing by these valves, can set the length and the connected sum between two air-inlet cavitys of air flow path isolates, can also guarantee the stable homogeneous of left and right sides cylinder row air inlet state simultaneously at motor different air quantity of supply engine under different operating modes like this.This inlet manifold system can significantly improve the power character of motor, Economy and emission performance.
In addition, the piping material of intake manifold can be by heat-resisting plastic injection-moulded forming, thereby realized the light-weight design of part, improved compactedness, reduced cost of production.
Though the utility model is described with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, under the situation that does not break away from the utility model spirit, also can make the variation or the replacement of various equivalences, therefore, as long as in connotation scope of the present utility model in the scope to the variation of the foregoing description, claims that modification all will drop on the application.
Claims (5)
1. inlet manifold system, comprise air-inlet cavity and left and right sides cylinder row, every side cylinder row is formed with several suction ports of equal number, described air-inlet cavity and each suction port all are provided with pipeline connection straight, it is characterized in that: described air-inlet cavity is divided into left and right sides air-inlet cavity by isolating plate, left side air-inlet cavity is communicated with described left side cylinder row's suction port, and right air-inlet cavity is communicated with described right side cylinder row's suction port; Airflow connection about also being provided with an equilibrium valve between the air-inlet cavity of the described left and right sides and being used to open or close between two air-inlet cavitys; Also be provided with dog leg piping separately between described left and right sides air-inlet cavity and the corresponding suction port and be connected, described each also be provided with the power valve on the pipeline straight.
2. inlet manifold system as claimed in claim 1 is characterized in that: described equilibrium valve be arranged on isolate described about the tail end of isolating plate of two air-inlet cavitys.
3. inlet manifold system as claimed in claim 1, it is characterized in that: the starting point of described pipeline straight and the starting point of described dog leg piping intersect and form the air inlet fork, and the terminal point of described pipeline straight and the terminal point of described dog leg piping intersect and formation air inlet convergent point.
4. inlet manifold system as claimed in claim 3 is characterized in that: described power valve is arranged between described air inlet fork and the described air inlet convergent point.
5. inlet manifold system as claimed in claim 1 is characterized in that: described every side cylinder drains into rare two suction ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044727 CN2937527Y (en) | 2006-08-11 | 2006-08-11 | Intake manifold system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044727 CN2937527Y (en) | 2006-08-11 | 2006-08-11 | Intake manifold system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2937527Y true CN2937527Y (en) | 2007-08-22 |
Family
ID=38361553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620044727 Expired - Lifetime CN2937527Y (en) | 2006-08-11 | 2006-08-11 | Intake manifold system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2937527Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012856A (en) * | 2020-03-05 | 2020-12-01 | 广西玉柴机器股份有限公司 | Air inlet pipeline structure capable of remarkably improving air inlet consistency of engine |
-
2006
- 2006-08-11 CN CN 200620044727 patent/CN2937527Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012856A (en) * | 2020-03-05 | 2020-12-01 | 广西玉柴机器股份有限公司 | Air inlet pipeline structure capable of remarkably improving air inlet consistency of engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070822 |
|
| EXPY | Termination of patent right or utility model |