CN208169028U - A kind of inlet structure and automobile - Google Patents
A kind of inlet structure and automobile Download PDFInfo
- Publication number
- CN208169028U CN208169028U CN201820637660.4U CN201820637660U CN208169028U CN 208169028 U CN208169028 U CN 208169028U CN 201820637660 U CN201820637660 U CN 201820637660U CN 208169028 U CN208169028 U CN 208169028U
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- section
- gas
- negative pressure
- pressure cavity
- air inlet
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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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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of inlet structures, including main airway and gas-distributing channel, the main airway and the gas-distributing channel are tubular structure, the main airway is connected as one formula structure with two gas-distributing channels simultaneously, the gas-distributing channel is successively arranged air inlet section far from the main airway, negative pressure cavity and air outlet section, it is equipped with first between the air inlet section and the negative pressure cavity and tapers section, described first tapers air inlet section described in Duan Weicong to the diminishing structure in negative pressure cavity cross section, the end that the cross section of the negative pressure cavity tapers section compared with described first is big, it is equipped with second between the negative pressure cavity and the air outlet section and tapers section, described second tapers negative pressure cavity described in Duan Weicong to the diminishing structure in air outlet section cross section.Section is tapered by first and reduces cross section, increases the gas flow rate entered in negative pressure cavity, and the gas flow of unit area increases, and improves Tumble and swirl.The invention also discloses a kind of automobiles using above-mentioned inlet structure.
Description
Technical field
The utility model relates to technical field of automobile parts, more particularly to a kind of inlet structure and automobile.
Background technique
With the rapid development and people's living standard of auto industry, automobile has become people's trip, shipping etc. no
Can or one of the scarce vehicles.
Miller cycle engine is a kind of engine that can control expansion ratio and compression ratio, since it can substantially reduce automobile
The discharge of pernicious gas can make full use of the energy to be widely used in the manufacturing of automobile simultaneously.Existing Miller cycle
The air intake duct of engine cylinder cap is normal straight tube structure, and the combustion chamber that gas is passed directly into engine is participated in burning.Air inlet
The valve in road moves repeatedly under the drive of camshaft, and when air inflow is smaller, valve increases the gas of unit area close to Hou Kou
Body flow velocity, when air inflow is larger, valve is not further added by unit area gas flow rate far from Hou Kou.
Common straight tube result can not provide enough charge flow rates and be mentioned for the miller cycle engine with high compression ratio
For Tumble and swirl, induction air flow ratio is smaller, causes the charge flow rate of unit area small, Tumble and swirl is low.Application number 201610047179.5
A kind of air intake duct of high Tumble and swirl cylinder head of petrol engine is disclosed, by slightly convexing to form fish belly shape area to air intake duct setting
Domain improves the flowing velocity of gas in air intake duct, but its promotion amplitude is smaller.
Utility model content
One purpose of the utility model is to propose a kind of inlet structure that Tumble and swirl is high.
A kind of inlet structure, including main airway and gas-distributing channel, the main airway and the gas-distributing channel are tubular structure,
The gas-distributing channel is that quantity is two, and the main airway is connected as one formula structure with two gas-distributing channels simultaneously, described two
A gas-distributing channel is located at the ipsilateral of the main airway, and the gas-distributing channel is successively arranged Hou Kou, air inlet section, negative pressure far from the main airway
Chamber and air outlet section are equipped with valve, the interior camshaft of the valve connection, the air inlet section and the negative pressure cavity at the Hou Kou
Between be equipped with and first taper section, described first tapers air inlet section described in Duan Weicong to the diminishing knot in negative pressure cavity cross section
Structure, the end that the cross section of the negative pressure cavity tapers section compared with described first is big, is equipped between the negative pressure cavity and the air outlet section
Second tapers section, and described second tapers negative pressure cavity described in Duan Weicong to the diminishing structure in air outlet section cross section.
According to the utility model proposes inlet structure, by described first taper section reduce cross section, make enter institute
The gas flow rate stated in negative pressure cavity increases, and the gas flow of unit area increases, and the structure for tapering section due to described first makes
Described first atmospheric density for tapering section is greater than the atmospheric density of the negative pressure cavity, makes the air pressure of the negative pressure cavity more described first
It is small to taper section, forms negative pressure, further increases the flow of gas unit area, then taper section by described second and increase again
The flow for having added gas unit area substantially increases the Tumble and swirl of miller cycle engine.
In addition, can also have following additional technology special according to fluid-tight assembly position limiting structure provided by the utility model
Sign：
Further, the cross section of the air inlet section, the negative pressure cavity and the air outlet section is circle, triangle, just
Polygonized structures more than rectangular or four sides.
Further, the cross section of the air inlet section, the negative pressure cavity and the air outlet section is circle, and gas is in circle
Flow velocity in pipeline is faster.
Further, the side of the air inlet section is equipped with the first fish belly shape region, and the first fish belly shape region is described
The extension that air inlet section longitudinally projects, the first fish belly shape region are connected to the air inlet section, pass through first fish belly
Shape region improves the flow velocity of gas.
Further, the side of the air outlet section corresponds to the air inlet section equipped with the second fish belly shape region, second fish
Abdomen shape region is identical as the first fish belly shape regional structure, improves the gas flow rate in the air outlet section.
Further, described second taper and be equipped with gradually wealthy section between section and the air outlet section, by it is described gradually wealthy section can increase
Add the stability for tapering the air-flow that section exports from described second.
Further, the gas-distributing channel is straight structure, prevents from causing gas flow rate to reduce because of bending.
Further, the gas-distributing channel is successively arranged air inlet section and air outlet section far from the main airway, the air inlet section with
It is equipped with first between the air outlet section and tapers section, has given up the negative pressure cavity.
Another purpose of the utility model is to propose a kind of automobile using air inlet channel structure.
The utility model has the beneficial effects that：Section is tapered by first and reduces cross section, makes the gas entered in negative pressure cavity
Flow velocity increases, and the gas flow of unit area increases；It can increase air inlet using the first fish belly shape region and the second fish belly shape region
The gas flow rate of section and air outlet section；The inlet structure can also cast out negative pressure cavity, can also play and improve unit area gas stream
The effect of amount.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and is readily appreciated that, wherein：
Fig. 1 is the structural schematic diagram of the inlet structure of the utility model first embodiment；
Fig. 2 is the schematic cross-sectional view of gas-distributing channel in Fig. 1；
Fig. 3 is schematic cross-sectional view of the valve close to Hou Kou in gas-distributing channel in Fig. 1；
Fig. 4 is the schematic cross-sectional view of valve in Fig. 1, Hou Kou and camshaft；
Fig. 5 is the side structure schematic view of air intake duct in Fig. 2；
Fig. 6 is the schematic cross-sectional view of the gas-distributing channel of the utility model second embodiment；
In figure：1- main airway, 2- gas-distributing channel, 21- air inlet section, 22- first taper section, 23- negative pressure cavity, and 24- second is tapered
Section, 25- gas off-take, 26- the first fish belly shape region, 27- the second fish belly shape region, gradually wealthy section of 28-, 29- Hou Kou, 3- valve, 4-
Camshaft.
Specific embodiment
It is practical to this with reference to the accompanying drawing to keep the purpose of this utility model, feature and advantage more obvious and easy to understand
Novel specific embodiment is described in detail.Several embodiments of the utility model are given in attached drawing.But this is practical
It is novel to realize in many different forms, however it is not limited to embodiment described herein.On the contrary, providing these implementations
The purpose of example is to keep the disclosure to the utility model more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixedly arranged on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side ", "upper", "lower" and similar statement for illustrative purposes only, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.Term " and or " used herein includes one or more relevant listed items
Any and all combinations.
The first embodiment of the utility model proposes a kind of inlet structure, including 1 He of main airway referring to FIG. 1 to FIG. 4,
Gas-distributing channel 2.
The main airway 1 and the gas-distributing channel 2 are tubular structure, and it is two that the gas-distributing channel 2, which is quantity, the main gas
Road 1 is connected as one formula structure with two gas-distributing channels 2 simultaneously, and described two gas-distributing channels 2 are located at the same of the main airway 1
Side, the gas-distributing channel 2 are successively arranged marquis mouthful 29, air inlet section 21, negative pressure cavity 23 and air outlet section 25, the marquis far from the main airway
Valve 3 is equipped at mouth 29, the valve 3 connects interior camshaft 4, is equipped between the air inlet section 21 and the negative pressure cavity 23
First tapers section 22, and described first tapers section 22 as from the air inlet section 21 to the diminishing knot in 23 cross section of negative pressure cavity
Structure, the end that the cross section of the negative pressure cavity 23 tapers section 22 compared with described first is big, the negative pressure cavity 23 and the air outlet section 25
Between be equipped with second and taper section 24, described second taper section 24 be from the negative pressure cavity 23 to 25 cross section of air outlet section gradually
The structure of diminution.
The effect of valve 29 is that when air inflow is smaller, valve 29 is close to marquis mouthful 3, at this time between valve 29 and marquis mouthful 3
There are lesser gaps, can increase the gas flow rate of unit area；When air inflow is larger, valve 29 is far from Hou Kou, valve 29
Gap between marquis mouthful 3 increases, and is not further added by unit area gas flow rate.
Section 22 is tapered by described first and reduces cross section, increases the gas flow rate entered in the negative pressure cavity 23, it is single
The gas flow of plane product increases, and the structure for tapering section 22 due to described first makes the described first atmospheric density for tapering section 22
Greater than the atmospheric density of the negative pressure cavity 23, the air pressure of the negative pressure cavity 23 more described first is set to taper section 22 small, the negative pressure
Chamber 23 and described first tapers and forms negative pressure between section 22, increases the gas flow rate into the negative pressure cavity 23 using pressure,
The flow of gas unit area is further increased, then tapers section 22 by described second and increases gas unit area again
Flow, substantially increase the Tumble and swirl of miller cycle engine.
In the present embodiment, the cross section of the air inlet section 22, the negative pressure cavity 23 and the air outlet section 25 is circle,
Flow velocity of the gas in circular pipe is faster.In addition, the air inlet section 22, the negative pressure cavity 23 and the air outlet section 25 it is transversal
Face may be triangle, square or other polygonized structures.
As shown in figure 5, the side of the air inlet section 21 is equipped with the first fish belly shape region 26, the first fish belly shape region 26
For the extension that the air inlet section 21 longitudinally projects, the first fish belly shape region 26 is connected to the air inlet section 21, passes through
The first fish belly shape region 26 improves a kind of flow velocity (gasoline engine as disclosed in application number 201610047179.5 of gas
The air intake duct of the high Tumble and swirl cylinder head of machine).
The side of the air outlet section 25 corresponds to the air inlet section 21 equipped with the second fish belly shape region 27, the second fish belly shape
Region 27 and 26 structures of the first fish belly shape region are similar or identical, and the second fish belly shape region 27 equally improves described
Gas flow rate in air outlet section 25.
Described second tapers between section 24 and the air outlet section 25 equipped with gradually wealthy section 28, gradually can increase for wealthy section 28 by described
The stability for tapering the air-flow that section 24 exports from described second.
The gas-distributing channel 2 is straight structure, and no inflexion point prevents from causing gas flow rate to reduce because of bending.
The second embodiment of the utility model proposes a kind of inlet structure, as shown in fig. 6, it is basic with first embodiment
It is identical, the difference is that the gas-distributing channel 2 is successively arranged air inlet section 22 and air outlet section 25 far from the main airway 1, it is described into
It is equipped with first between gas section 22 and the air outlet section 25 and tapers section, has given up the negative pressure cavity 23, can equally make the gas-distributing channel 2
Unit area gas flow increase.
The 3rd embodiment of the utility model proposes a kind of automobile, which, which includes at least first embodiment and second, implements
Inlet structure in example, can increase the Tumble and swirl of miller cycle engine using the inlet structure.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (8)
1. a kind of inlet structure, which is characterized in that including main airway and gas-distributing channel, the main airway and the gas-distributing channel are
Tubular structure, the gas-distributing channel are that quantity is two, and the main airway is connected as one formula knot with two gas-distributing channels simultaneously
Structure, described two gas-distributing channels are located at the ipsilateral of the main airway, the gas-distributing channel far from the main airway be successively arranged Hou Kou, into
Gas section, negative pressure cavity and air outlet section, are equipped with valve at the Hou Kou, the interior camshaft of the valve connection, the air inlet section with
Be equipped with first between the negative pressure cavity and taper section, described first taper air inlet section described in Duan Weicong to the negative pressure cavity cross section by
Tapered small structure, the end that the cross section of the negative pressure cavity tapers section compared with described first is big, the negative pressure cavity and the outlet
It is equipped with second between section and tapers section, described second to taper negative pressure cavity described in Duan Weicong diminishing to the air outlet section cross section
Structure.
2. inlet structure according to claim 1, which is characterized in that the air inlet section, the negative pressure cavity and it is described go out
The cross section of gas section is the polygonized structure on circle, triangle, square or four sides or more.
3. inlet structure according to claim 1, which is characterized in that the air inlet section, the negative pressure cavity and it is described go out
The cross section of gas section is circle.
4. inlet structure according to claim 1, which is characterized in that the side of the air inlet section is equipped with the first fish belly shape
Region, the first fish belly shape region are the extension that the air inlet section longitudinally projects, the first fish belly shape region and institute
State air inlet section connection.
5. inlet structure according to claim 4, which is characterized in that the side of the air outlet section corresponds to the air inlet section
Equipped with the second fish belly shape region, the second fish belly shape region is identical as the first fish belly shape regional structure.
6. inlet structure according to claim 1, which is characterized in that described second tapers between section and the air outlet section
Equipped with gradually wealthy section.
7. inlet structure according to claim 1, which is characterized in that the gas-distributing channel is straight structure.
8. a kind of automobile, which is characterized in that including inlet structure described in claim 1 to 7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820637660.4U CN208169028U (en) | 2018-04-28 | 2018-04-28 | A kind of inlet structure and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820637660.4U CN208169028U (en) | 2018-04-28 | 2018-04-28 | A kind of inlet structure and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208169028U true CN208169028U (en) | 2018-11-30 |
Family
ID=64368093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820637660.4U Active CN208169028U (en) | 2018-04-28 | 2018-04-28 | A kind of inlet structure and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208169028U (en) |
-
2018
- 2018-04-28 CN CN201820637660.4U patent/CN208169028U/en active Active
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