CN206770062U - Carburetor - Google Patents
Carburetor Download PDFInfo
- Publication number
- CN206770062U CN206770062U CN201720191803.9U CN201720191803U CN206770062U CN 206770062 U CN206770062 U CN 206770062U CN 201720191803 U CN201720191803 U CN 201720191803U CN 206770062 U CN206770062 U CN 206770062U
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- China
- Prior art keywords
- mixing chamber
- combustion gas
- carburetor
- main channel
- inlet plenum
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of carburetor, including carburetor body, inlet plenum is provided with the carburetor body, aditus laryngis and mixing chamber, the aditus laryngis is between the inlet plenum and mixing chamber, the mixing chamber is provided with section door door piece backwards to the side of the inlet plenum, the carburetor body is provided with the mounting hole being connected with mixing chamber, the mounting hole is provided with the combustion gas main channel for being used to be passed through combustion gas to mixing chamber and managed, it is also connected with being provided with combustion gas pair venting channels on the pipe of the combustion gas main channel, the gas outlet of the combustion gas pair venting channels is located at the section door door piece backwards to the side of the mixing chamber.Carburetor of the present utility model, the mixed proportion between combustion gas and air can be effectively controlled, ensure that each operating point of internal combustion engine when using combustion gas has optimal mixing ratio, so as to reach the purpose for reducing internal combustion engine hazardous emission.
Description
Technical field
A kind of carburetor is the utility model is related to, is specifically a kind of carburetor.
Background technology
Carburetor（carburetor）It is under vacuum action caused by engine work, by a certain proportion of gasoline and sky
The mechanical device of gas mixing.For carburetor as a kind of accurate mechanical device, it realizes gasoline using the kinetic energy for sucking air stream
Atomization.Its important function to engine can be referred to as " heart " of engine.Its complete device should include starting
Device, idling device, moderate duty device, full load device, accelerator.Carburetor can be according to the different operating shape of engine
State demand, automatic mixing go out corresponding concentration, export the gaseous mixture measured accordingly, in order that the comparison for the gaseous mixture mixing allotted
Uniformly, carburetor is also equipped with the effect for making fuel-oil atmozation, for machine normal operation.
Dual fuel engine is that one kind can use Fuel Petroleum and LP gas fuel or natural gas new as fuel
H type engine h, it has high-efficiency low-pollution draining technology feature, there is good development prospect.But current oil-gas two-way
Oily device, its blast tube are shared with fuel oil idling system passage, and combustion gas is mixed by this kind of structure with air, and mixing ratio is unstable
And can not achieve effective control, the requirement of each operating point of internal combustion engine can not be met, cause internal combustion engine hazardous emission exceeded.Separately
A kind of oil-gas two-way carburetor simply opens up a hole position on the air intake duct of carburetor body, then tracheae is inserted into hole position, directly
Mixed with air, equally exist the problem of mixing ratio is unstable, cause internal combustion engine hazardous emission exceeded.
The content of the invention
In view of this, the purpose of this utility model is to provide a kind of carburetor, can effectively control combustion gas and air it
Between mixed proportion, ensure that each operating point of internal combustion engine when using combustion gas has optimal mixing ratio, reduced so as to reach
The purpose of internal combustion engine hazardous emission.
To reach above-mentioned purpose, the utility model provides following technical scheme：
A kind of carburetor, including carburetor body, the carburetor body is interior to be provided with inlet plenum, aditus laryngis and mixing chamber, institute
Aditus laryngis is stated between the inlet plenum and mixing chamber, the mixing chamber is provided with section door door piece backwards to the side of the inlet plenum,
The carburetor body is provided with the mounting hole being connected with mixing chamber, and the mounting hole, which is provided with, to be used to be passed through combustion to mixing chamber
The combustion gas main channel of gas is managed, and is also connected with being provided with combustion gas pair venting channels on the pipe of the combustion gas main channel, the secondary ventilation of the combustion gas is logical
The gas outlet in road is located at the section door door piece backwards to the side of the mixing chamber.
Further, the combustion gas pair venting channels include being arranged on combustion gas subaisle in the carburetor body and with institute
The connected air supply passage of combustion gas subaisle is stated, the gas outlet of the air supply passage is located at the section door door piece backwards to the mixing chamber
Side.
Further, the aditus laryngis is provided with internal diameter towards one end of the mixing chamber and points to the mixing along the inlet plenum
The changeover portion that room gradually increases, combustion gas main channel pipe are arranged between the changeover portion and the mixing chamber.
Further, the length that combustion gas main channel pipe is stretched into the mixing chamber is equal to the 0.2- of the mixing chamber internal diameter
0.5 times.
Further, the length that combustion gas main channel pipe is stretched into the mixing chamber is equal to the 1/3 of the mixing chamber internal diameter
Times.
The beneficial effects of the utility model are：
Carburetor of the present utility model, by the way that combustion gas main channel pipe to be arranged to be connected with mixing chamber, and in section door door
Piece sets combustion gas auxiliary ventilating pipe road backwards to the side of mixing chamber, can ensure each operating point of internal combustion engine when using combustion gas all
There is optimal mixing ratio, particularly, in the case of internal combustion engine high power consumption operating mode to low-power consumption operating mode, section door door piece aperture subtracts
It is small, more combustion gas can be provided by combustion gas auxiliary ventilating pipe road, burning is more abundant, possesses excellent transiting performance, and can reach
To the purpose for reducing internal combustion engine hazardous emission.
Brief description of the drawings
In order that the purpose of this utility model, technical scheme and beneficial effect are clearer, the utility model provides as follows
Accompanying drawing illustrates：
Fig. 1 is the structural representation of the utility model carburetor embodiment；
Fig. 2 is being crossed combustion gas main channel pipe axis and intercepted perpendicular to the section of mixing chamber axis by the present embodiment carburetor
Obtained profile；
Fig. 3 is that the present embodiment carburetor cuts acquired arrive in the section for crossing the axis of section door door piece rotating shaft and mixing chamber axis
Profile；
Fig. 4 is the stereogram of the present embodiment carburetor.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art
The utility model can be better understood from and can be practiced, but illustrated embodiment is not as to restriction of the present utility model.
As shown in figure 1, the structural representation for the utility model carburetor embodiment.The carburetor of the present embodiment, including
Carburetor body 1, the carburetor body 1 is interior to be provided with inlet plenum 2, aditus laryngis 3 and mixing chamber 4, and the aditus laryngis 3 is located at the air inlet
Between room 2 and mixing chamber 4, the mixing chamber 4 is provided with section door door piece 5, the carburetor body backwards to the side of the inlet plenum 2
1 is provided with the mounting hole being connected with mixing chamber 4, and the mounting hole is provided with the combustion gas master for being used for that combustion gas to be passed through to mixing chamber 4
Tube channel 6, it is also connected with being provided with combustion gas pair venting channels, the outlet of the combustion gas pair venting channels on combustion gas main channel pipe 6
Mouth 7 is positioned at the section door door piece 5 backwards to the side of the mixing chamber 4.
Further, the combustion gas pair venting channels include being arranged on combustion gas subaisle 8 in the carburetor body 1 and with
The connected air supply passage 9 of the combustion gas subaisle 8, the gas outlet of the air supply passage 9 are located at the section door door piece 5 backwards to described
The side of mixing chamber 4, the i.e. gas outlet of air supply passage 9 are the gas outlet 7 of combustion gas pair venting channels.By setting combustion gas secondary logical
Gas passage, secondary air inlet passage can be effectively formed.
Further, the aditus laryngis 3 points to described towards one end of the mixing chamber 4 provided with internal diameter along the inlet plenum 2
The changeover portion 10 that mixing chamber 3 gradually increases, combustion gas main channel pipe 6 be arranged on the changeover portion 10 and the mixing chamber 4 it
Between.Specifically, the length that combustion gas main channel pipe 6 is stretched into the mixing chamber 4 is equal to the 0.2- of the internal diameter of mixing chamber 4
0.5 times.The length that the combustion gas main channel pipe 6 of the present embodiment is stretched into the mixing chamber 4 is equal to the internal diameter of mixing chamber 4
1/3 times, it can effectively ensure that combustion gas main channel pipe 6 does not interfere with mixing negative pressure or by 6 influence to negative pressure of pipe of combustion gas main channel
It is reduced to minimum.
The carburetor of the present embodiment, by the way that combustion gas main channel pipe to be arranged to be connected with mixing chamber, and in section door door piece
Combustion gas auxiliary ventilating pipe road is set backwards to the side of mixing chamber, can ensure that each operating point of internal combustion engine when using combustion gas has
Optimal mixing ratio, particularly, in the case of internal combustion engine high power consumption operating mode to low-power consumption operating mode, section door door piece aperture reduces,
More combustion gas can be provided by combustion gas auxiliary ventilating pipe road, burning is more abundant, possesses excellent transiting performance, and can reach drop
The purpose of low internal combustion engine hazardous emission.
Embodiment described above is only the preferred embodiment to absolutely prove the utility model and being lifted, the utility model
Protection domain not limited to this.The equivalent substitute or change that those skilled in the art are made on the basis of the utility model
Change, within the scope of protection of the utility model.The scope of protection of the utility model is defined by claims.
Claims (5)
1. a kind of carburetor, including carburetor body, the carburetor body is interior to be provided with inlet plenum, aditus laryngis and mixing chamber, described
For aditus laryngis between the inlet plenum and mixing chamber, the mixing chamber is provided with section door door piece backwards to the side of the inlet plenum, its
It is characterised by：The carburetor body is provided with the mounting hole being connected with mixing chamber, and the mounting hole, which is provided with, to be used for mixed
The combustion gas main channel pipe that room is passed through combustion gas is closed, is also connected with being provided with combustion gas pair venting channels, the combustion on the pipe of the combustion gas main channel
The gas outlet of gas pair venting channels is located at the section door door piece backwards to the side of the mixing chamber.
2. carburetor according to claim 1, it is characterised in that：The combustion gas pair venting channels include being arranged on describedization
The intrinsic combustion gas subaisle of oily device and the air supply passage being connected with the combustion gas subaisle, the gas outlet position of the air supply passage
In the section door door piece backwards to the side of the mixing chamber.
3. carburetor according to claim 1 or 2, it is characterised in that：One end of the aditus laryngis towards the mixing chamber is set
There is the changeover portion that internal diameter gradually increases along the inlet plenum sensing mixing chamber, combustion gas main channel pipe is arranged on described
Between changeover portion and the mixing chamber.
4. carburetor according to claim 3, it is characterised in that：Combustion gas main channel pipe is stretched into the mixing chamber
Length is equal to 0.2-0.5 times of the mixing chamber internal diameter.
5. carburetor according to claim 4, it is characterised in that：Combustion gas main channel pipe is stretched into the mixing chamber
Length is equal to 1/3 times of the mixing chamber internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720191803.9U CN206770062U (en) | 2017-03-01 | 2017-03-01 | Carburetor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720191803.9U CN206770062U (en) | 2017-03-01 | 2017-03-01 | Carburetor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206770062U true CN206770062U (en) | 2017-12-19 |
Family
ID=60632035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720191803.9U Active CN206770062U (en) | 2017-03-01 | 2017-03-01 | Carburetor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206770062U (en) |
-
2017
- 2017-03-01 CN CN201720191803.9U patent/CN206770062U/en active Active
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