CN203906136U - Variable intake manifold of small-displacement engine - Google Patents
Variable intake manifold of small-displacement engine Download PDFInfo
- Publication number
- CN203906136U CN203906136U CN201420228236.6U CN201420228236U CN203906136U CN 203906136 U CN203906136 U CN 203906136U CN 201420228236 U CN201420228236 U CN 201420228236U CN 203906136 U CN203906136 U CN 203906136U
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- CN
- China
- Prior art keywords
- intake manifold
- variable intake
- displacement engine
- air flue
- small displacement
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Abstract
The utility model discloses a variable intake manifold of a small-displacement engine. The variable intake manifold comprises a manifold air passage and an actuator; a vacuum chamber is formed by the manifold air passage, a pressure stabilizing chamber and a fuel guide rail; the manifold air passage comprises a long air passage and a short air passage, the two of which are be switched mutually; the long air passage and the short air passage can be switched and communicated by use of a cylinder type switching mechanism; a closed-up opening is formed in the middle rear portion, communicated with the manifold air passage, of the vacuum chamber; the cylinder type switching mechanism is rotatably arranged at the closed-up opening. The variable intake manifold of the small-displacement engine is simple in structure, and capable of ensuring the reliability and stability of the air passage length variable system, improving the maximum torque of the engine, increasing the maximum output power, avoiding abnormal sound and effectively reducing the cost.
Description
Technical field
The utility model relates to a kind of intake manifold, particularly relates to a kind of small displacement engine variable intake manifold.
Background technique
Performance requirement when taking into account motor middle and slow speed of revolution and high rotating speed, increasing intake manifold adopts the structure of variable airway length.
The intake manifold of most of variable airway lengths all adopts the valve plate-type switching mechanism of (or claiming slat belt), the switching mechanism of valve plate-type in various degree there is the problems such as gas-flow resistance is large, air-flow is unstable, abnormal sound, hindered the further lifting of intake manifold performance.
The switching mechanism of the domestic employing roller type that also has minority, but the roller type switching mechanism on market exists, structure is too complicated, cost is higher, air flue is arranged the problems such as limitation is large.
Summary of the invention
The utility model completes in order to solve deficiency of the prior art, that the purpose of this utility model is to provide is simple in structure, ensure variable airway length system reliability of operation and stability, improve the highest moment of torsion of motor, the small displacement engine variable intake manifold of improve maximum output, avoiding abnormal sound and can effectively reduce costs.
Small displacement engine variable intake manifold of the present utility model, comprise manifold air flue and final controlling element, between described manifold air flue and pressure stabilizing cavity and fuel rail, form vacuum chamber, described manifold air flue comprises the long air flue that can mutually switch and loses heart, described long air flue with described in lose heart between by roller type switching mechanism switch be communicated with, described vacuum chamber and described manifold air flue mid-rear portion connectivity part are provided with closing in, and described roller type switching mechanism rotary setting is in described closing in position.
Small displacement engine variable intake manifold of the present utility model can also be:
Described roller type switching mechanism comprises roller and is positioned at the running shaft at described roller middle part, described roller is transversely arranged is provided with at least two through flow holes, described through flow hole radially forms through-flow channel, described through flow hole size and dimension and corresponding with the entrance size and dimension of losing heart of its docking through described roller.
On described roller, be laterally disposed with four through flow holes.
Described each through flow hole cross section is all variant.
In described roller, dig at least two hollow structures, described Drum thickness is consistent.
Described roller outer wall is provided with sealing gasket, on described roller outer wall, is provided with mounting groove, and described sealing gasket is detachably arranged in described mounting groove.
Described manifold air flue below is provided with Valve EGR fitting seat, on described Valve EGR fitting seat, is equipped with mounting bracket.
Described mounting bracket below is provided with the anticollision block arc that prevents described mounting bracket and described Valve EGR fitting seat damaged in collision.
Described final controlling element is provided with final controlling element pull bar, and described final controlling element pull bar is connected with the driving handle of described roller type switching mechanism, and described final controlling element upper cover is provided with the depression concaving.
On the driving handle of described roller type switching mechanism, be equipped with at least two prevent adhesion metal inserts.
Small displacement engine variable intake manifold of the present utility model, comprise manifold air flue and final controlling element, between described manifold air flue and pressure stabilizing cavity and fuel rail, form vacuum chamber, described manifold air flue comprises the long air flue that can mutually switch and loses heart, described long air flue with described in lose heart between by roller type switching mechanism switch be communicated with, described vacuum chamber and described manifold air flue mid-rear portion connectivity part are provided with closing in, and described roller type switching mechanism rotary setting is in described closing in position.Like this, vacuum chamber makes full use of the clearance space between air flue and between oil nozzle, as far as possible enlarging volume; While without adopting external vacuum chamber, effectively ensures compactedness requirement under the space of limitation; And the reliability and stability of variable airway length system are ensured.In addition, adopt roller type switching mechanism, simple in structure, part is few, reduces actual effect defence line, reduces after cost, can avoid the abnormal sound of " the clatter clatter clatter " of the appearance of valve plate-type switching mechanism simultaneously, make the highest moment of torsion of motor improve approximately 6%, peak output is also slightly improved simultaneously, and has obviously promoted the moment of torsion of low rotation speed in motor.
Brief description of the drawings
Fig. 1 the utility model small displacement engine variable intake manifold embodiment schematic diagram.
Fig. 2 the utility model small displacement engine variable intake manifold switches to long air flue schematic diagram.
Fig. 3 the utility model small displacement engine variable intake manifold switches to the schematic diagram of losing heart.
Fig. 4 the utility model small displacement engine variable intake manifold embodiment vacuum chamber schematic diagram.
Fig. 5 the utility model small displacement engine variable intake manifold roller type switching mechanism schematic diagram.
Fig. 6 the utility model small displacement engine variable intake manifold roller type switching mechanism plan view.
Fig. 7 the utility model small displacement engine variable intake manifold roller type switching mechanism side view.
Fig. 8 the utility model small displacement engine variable intake manifold sealing gasket schematic diagram.
Fig. 9 the utility model small displacement engine variable intake manifold final controlling element upper cover schematic diagram.
Figure number explanation
1 ... manifold air flue 2 ... final controlling element 3 ... final controlling element pull bar
4 ... vacuum chamber 5 ... close up 6 ... roller
7 ... running shaft 8 ... through flow hole 9 ... sealing gasket
10 ... mounting groove 11 ... fitting seat 12 ... mounting bracket
13 ... anticollision block arc 14 ... final controlling element upper cover 15 ... depression
16 ... prevent adhesion metal insert 17 ... bypass passageways 18 ... one-way valve
19 ... driving handle
Embodiment
Fig. 1 to Fig. 9 below in conjunction with accompanying drawing is described in further detail small displacement engine variable intake manifold of the present utility model.
Small displacement engine variable intake manifold of the present utility model, please refer to Fig. 1 to Fig. 4, comprise manifold air flue 1 and final controlling element 2, between described manifold air flue 1 and pressure stabilizing cavity and fuel rail, form vacuum chamber 4, described manifold air flue 1 comprises the long air flue that can mutually switch and loses heart, described long air flue with described in lose heart between by roller type switching mechanism switch be communicated with, described vacuum chamber 4 is provided with and closes up 5 with described manifold air flue 1 mid-rear portion connectivity part, and described roller type switching mechanism rotary setting is in described closing in 5 positions.Roller type switching mechanism rotates to the position at conducting manifold air flue 1 middle part, and manifold air flue 1 forms and loses heart, because gas is directly delivered to the tail end of manifold air flue 1 from the middle part of manifold air flue 1, it is shorter that gas flow is walked stroke.And when after roller type switching construction half-twist, intercept the gas communication at air flue middle part, manifold air flue 1 forms long air flue, and can only detour middle part that the arc-shaped head of manifold air flue 1 passes through manifold air flue 1 again of gas is delivered to the tail end of manifold air flue 1, and it is long that gas flow is walked stroke.Like this, vacuum chamber 4 makes full use of the clearance space between air flue and between oil nozzle, as far as possible enlarging volume; While without adopting external vacuum chamber 4, effectively ensures compactedness requirement under the space of limitation; And the reliability and stability of variable airway length system are ensured.In addition, adopt roller type switching mechanism, simple in structure, part is few, reduces actual effect defence line, reduces after cost, can avoid the abnormal sound of " the clatter clatter clatter " of the appearance of valve plate-type switching mechanism simultaneously, make the highest moment of torsion of motor improve approximately 6%, peak output is also slightly improved simultaneously, and has obviously promoted the moment of torsion of low rotation speed in motor.In addition, vacuum chamber 4 adopts built-in bypass passageways 17 to be connected with pressure stabilizing cavity, and centre has umbrella shape one-way valve 18 to be separated by.
Small displacement engine variable intake manifold of the present utility model, please refer to Fig. 1 to Fig. 9, on the basis of previously described technological scheme, can also be: described roller type switching mechanism comprises roller 6 and is positioned at the running shaft 7 at described roller 6 middle parts, transversely arranged at least two through flow holes 8 that are provided with of described roller 6, described through flow hole 8 radially forms through-flow channel, described through flow hole 8 size and dimensions and corresponding with the entrance size and dimension of losing heart of its docking through described roller 6.Roller 6 is in the 5 interior rotations of closing up, and rotation extremely forms the position of losing heart, the through-flow channel that multiple through flow holes 8 form, and the middle part of conducting manifold air flue 1, forms and loses heart.And described through flow hole 8 size and dimensions and complete with the corresponding guarantee docking of the entrance size and dimension of losing heart of its docking are avoided gas leakage or collaborate.Further preferred technological scheme is on described roller 6, to be laterally disposed with four through flow holes 8.The advantage of four through flow holes 8 is to ensure as far as possible the unimpeded mistake of air flow stream.Can also be that described each through flow hole 8 cross sections are all variant.Each through flow hole 8 is each variant according to manifold air flue 1 and the harmonious requirement design of air-flow, ensures that air-flow is harmonious good.Can also be to dig at least two hollow structures in described roller 6, described roller 6 wall thickness be consistent.Like this, overall weight is light, and mass distribution is even, and wall thickness is even, and the power that drives switching mechanism to need is less, and the stability of system works is high.In addition, hollow structure is equivalent at the interior stiffening rib that arranges of roller 6, and raising cylinder intensity is high and molding and forming distortion is little.Can also be that described roller 6 outer walls are provided with sealing gasket 9, on described roller 6 outer walls, be provided with mounting groove 10, described sealing gasket 9 be detachably arranged in described mounting groove 10.The effect of sealing gasket 9 is the entrances for losing heart in the time sealing of long air flue state, avoids gas blowby between each air flue.
Small displacement engine variable intake manifold of the present utility model, please refer to Fig. 1 to Fig. 9, on the basis of previously described technological scheme, can also be: described manifold air flue 1 below is provided with Valve EGR fitting seat 11, on described Valve EGR fitting seat 11, is equipped with mounting bracket 12.Mounting bracket 12 is arranged on manifold air flue 1 below, makes full use of limited space, and convenient Valve EGR and the line arrangement of installing, also ensures that engine compartment is artistically decorated.And the convenient Valve EGR of installing of mounting bracket 12.Further preferred technological scheme is that described mounting bracket 12 belows are provided with the anticollision block arc 13 that prevents described mounting bracket 12 and described Valve EGR fitting seat 11 damaged in collision.Effectively avoid mounting bracket 12 to be caused damaging by collision in logistics and handling process.
Small displacement engine variable intake manifold of the present utility model, please refer to Fig. 1 to Fig. 9, on the basis of previously described technological scheme, can also be: described final controlling element 2 is provided with final controlling element pull bar 3, described final controlling element pull bar 3 is connected with the driving handle 19 of described roller type switching mechanism, and described final controlling element upper cover 14 is provided with the depression 15 concaving.Like this, final controlling element 2 inner chamber body volumes reduce at least 15%, improve the reliability and stability of total system.Can also be to be equipped with at least two prevent adhesion metal inserts 16 on the driving handle 19 of described roller type switching mechanism.Prevent adhesion metal insert 16 is set, can effectively prevents motor adhesion.
Above-mentionedly only several specific embodiments in the utility model are illustrated; but can not serve as protection domain of the present utility model; every equivalence variation of having done according to the design spirit in the utility model or modification or equal proportion zoom in or out etc., all should think and fall into protection domain of the present utility model.
Claims (10)
1. small displacement engine variable intake manifold, it is characterized in that: comprise manifold air flue and final controlling element, between described manifold air flue and pressure stabilizing cavity and fuel rail, form vacuum chamber, described manifold air flue comprises the long air flue that can mutually switch and loses heart, described long air flue with described in lose heart between by roller type switching mechanism switch be communicated with, described vacuum chamber and described manifold air flue mid-rear portion connectivity part are provided with closing in, and described roller type switching mechanism rotary setting is in described closing in position.
2. small displacement engine variable intake manifold according to claim 1, it is characterized in that: described roller type switching mechanism comprises roller and is positioned at the running shaft at described roller middle part, described roller is transversely arranged is provided with at least two through flow holes, described through flow hole radially forms through-flow channel, described through flow hole size and dimension and corresponding with the entrance size and dimension of losing heart of its docking through described roller.
3. small displacement engine variable intake manifold according to claim 2, is characterized in that: on described roller, be laterally disposed with four through flow holes.
4. small displacement engine variable intake manifold according to claim 2, is characterized in that: described each through flow hole cross section is all variant.
5. small displacement engine variable intake manifold according to claim 2, is characterized in that: in described roller, dig at least two hollow structures, described Drum thickness is consistent.
6. small displacement engine variable intake manifold according to claim 2, is characterized in that: described roller outer wall is provided with sealing gasket, on described roller outer wall, is provided with mounting groove, and described sealing gasket is detachably arranged in described mounting groove.
7. according to the small displacement engine variable intake manifold described in any claim of claim 1 to 6, it is characterized in that: described manifold air flue below is provided with Valve EGR fitting seat, on described Valve EGR fitting seat, is equipped with mounting bracket.
8. small displacement engine variable intake manifold according to claim 7, is characterized in that: described mounting bracket below is provided with the anticollision block arc that prevents described mounting bracket and described Valve EGR fitting seat damaged in collision.
9. according to the small displacement engine variable intake manifold described in any claim of claim 1 to 6, it is characterized in that: described final controlling element is provided with final controlling element pull bar, described final controlling element pull bar is connected with the driving handle of described roller type switching mechanism, and described final controlling element upper cover is provided with the depression concaving.
10. according to the small displacement engine variable intake manifold described in any claim of claim 1 to 6, it is characterized in that: on the driving handle of described roller type switching mechanism, be equipped with at least two prevent adhesion metal inserts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420228236.6U CN203906136U (en) | 2014-05-06 | 2014-05-06 | Variable intake manifold of small-displacement engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420228236.6U CN203906136U (en) | 2014-05-06 | 2014-05-06 | Variable intake manifold of small-displacement engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906136U true CN203906136U (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420228236.6U Expired - Fee Related CN203906136U (en) | 2014-05-06 | 2014-05-06 | Variable intake manifold of small-displacement engine |
Country Status (1)
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| CN (1) | CN203906136U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240172A (en) * | 2015-11-02 | 2016-01-13 | 阿尔特汽车技术股份有限公司 | Two-level independently-changeable intake manifold mounting structure |
| CN105715422A (en) * | 2016-03-02 | 2016-06-29 | 宁波神通模塑有限公司 | Ball friction type variable intake manifold |
| 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 |
-
2014
- 2014-05-06 CN CN201420228236.6U patent/CN203906136U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240172A (en) * | 2015-11-02 | 2016-01-13 | 阿尔特汽车技术股份有限公司 | Two-level independently-changeable intake manifold mounting structure |
| CN105715422A (en) * | 2016-03-02 | 2016-06-29 | 宁波神通模塑有限公司 | Ball friction type variable intake manifold |
| 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 |
Granted publication date: 20141029 Termination date: 20200506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |