CN109826726A - A kind of rotary valve diaphragm type carburator - Google Patents
A kind of rotary valve diaphragm type carburator Download PDFInfo
- Publication number
- CN109826726A CN109826726A CN201910244892.2A CN201910244892A CN109826726A CN 109826726 A CN109826726 A CN 109826726A CN 201910244892 A CN201910244892 A CN 201910244892A CN 109826726 A CN109826726 A CN 109826726A
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- China
- Prior art keywords
- chamber
- mixture pipe
- interface channel
- diaphragm type
- rotary valve
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Links
- 239000000203 mixture Substances 0.000 claims abstract description 28
- 239000000446 fuel Substances 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 17
- 239000003921 oil Substances 0.000 claims abstract description 11
- 239000000295 fuel oil Substances 0.000 claims abstract description 10
- 239000008246 gaseous mixture Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000008266 hair spray Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 14
- 241000196324 Embryophyta Species 0.000 description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000002420 orchard Substances 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of rotary valve diaphragm type carburators, including carburetor body, fuel delivery chamber is offered on carburetor body, fuel delivery chamber includes inlet chamber and the mixing chamber that is connected to inlet chamber, being provided between inlet chamber and mixing chamber is connected inlet chamber with mixing chamber or closed rotation valve plunger, it is offered on rotation valve plunger and constitutes the conducting of fuel delivery chamber or closed interface channel, bottom wall is connected with mixture pipe under interface channel, mixture pipe is arranged along the axial direction of interface channel, and mixture pipe both ends are respectively in the air inlet and gas outlet of interface channel；Space between interface channel and mixture pipe is the air air flue be connected with inlet chamber with mixing chamber, and mixture pipe inner space is main oil supply gallery.By adopting the above technical scheme, a kind of saving fuel oil, the exhaust emission for substantially reducing discharge, environmental protection and the rotary valve diaphragm type carburator for reducing engine hair spray phenomenon are provided.
Description
Technical field
The present invention relates to Manufacturing Technology for Carburetors field, more particularly to a kind of rotary valve diaphragm type carburator.
Background technique
General small-size gasoline engine is one kind using gasoline as fuel, and power is not more than 30KW, non-road (motorcycle gasoline engine
Except) miniature gasoline engine engine, mating corresponding Work machine and be widely used in agricultural equipment for plant protection, small farm machine, gardens
The mating power of machinery, generating set, building machinery, outboard machinery etc..Due to general small-size gasoline engine it is small in size, it is light-weight,
It is cheap, easy to use, so occupying critical positions in various machine coordinations, especially among backpack machinery, lead to
It is even more unique mating power with miniature gasoline engine.
General small-size gasoline engine is generally single cylinder engine, and minority is twin-tub or four-cylinder, at present China's general small-size gasoline engine
Share 39 kinds.Wherein two-stroke gasoline engine 23, the overwhelming majority are single cylinder, air blast cooling；Four-stroke gasoline engine shares 16
A kind divides single cylinder, twin-tub, four cylinders；General small-size gasoline engine is widely used in motor-driven sprayer-duster, chain saw, generator, water
Pump, grass trimmer.The annual output of whole world miniature gasoline engine is about 30,000,000.
Two-stroke gasoline engine grass-mowing machine category agriculture gardens general small-size gasoline engine, is mainly used for weeds cleaning, and field is miscellaneous
Grass management, orchard weed are removed, the smooth cleaning of river shoal dykes and dams weeds, weeds harvesting, Reed, afforestation, orchard cleaning,
Pond side weeds removing etc., is chiefly used in agricultural, forestry, urban afforestation and afforestation etc..
Currently, rotary valve diaphragm type carburator in the market mainly includes carburetor body and is arranged on carburetor body
Main fueller, idling fueller, fuel oil remove device, oil inlet interface tube, carburetor body offer fuel delivery chamber, position
Rotation valve plunger, main jet pipe and the main amount that can be closed fuel delivery chamber or open fuel delivery chamber are provided in fuel delivery chamber
Needle generates vacuum under the action of engine piston moves up and down with the unlatching of rotation valve plunger, by vacuum by fuel oil from change
It is sucked out in the main burner of oily device, and mixes with air into gaseous mixture and do work for engine combustion, outside output power.
But only one main oil supply gallery on existing plunger type rotation valve plunger, the channel 100 be clear opening (referring to
Fig. 1) or for the small horn taper hole in the big centre in both ends structure (referring to fig. 2), gasoline mix with air after from idling operation to
Standard-sized sheet operating condition is all from this main oil supply gallery fuel feeding.When the engine operates, starting from the mixer that main oil supply gallery provides
Machine needs that the residual gas in engine cylinder body is discharged with unburned incoming mixture when being vented, and on the one hand causes gasoline
Resource greatly wastes, and on the other hand can generate a large amount of exhaust gas, and in exhaust gas containing a large amount of carbon monoxide, hydrocarbon and
Oxynitrides etc., would seriously pollute the environment.
Therefore, how a kind of saving fuel oil is provided, the exhaust emission that substantially reduces discharge, environmental protection rotary valve diaphragm type
The problem of oily device is those skilled in the art's urgent need to resolve.
Summary of the invention
In view of this, the present invention provides a kind of saving fuel oil, the exhaust emission that substantially reduces discharge, environmental protection rotary valve
Diaphragm type carburator.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of rotary valve diaphragm type carburator, including carburetor body offer fuel delivery chamber on the carburetor body,
The fuel delivery chamber includes inlet chamber and the mixing chamber that is connected to inlet chamber, is arranged between the inlet chamber and the mixing chamber
Having is connected the inlet chamber with the mixing chamber or closed rotation valve plunger, offers on the rotation valve plunger and constitutes institute
The conducting of fuel delivery chamber or closed interface channel are stated, bottom wall is connected with mixture pipe under the interface channel, described mixed
Axial direction setting of the tracheae along the interface channel is closed, and the mixture pipe both ends are respectively at the air inlet of the interface channel
And in gas outlet；
Wherein, the space between the interface channel and the mixture pipe is to lead with the inlet chamber and the mixing chamber
Logical air air flue, the mixture pipe inner space are main oil supply gallery.
It can be seen via above technical scheme that compared with prior art, the present disclosure provides a kind of rotary valve diaphragm types
Carburetor.Mixture pipe is set in the interface channel in the rotation valve plunger, which is divided into air air flue and main fuel feeding
Channel, such structure have the effect of turbulent flow than existing clear opening or horn taper hole, and relative to original structure,
Because the size of fuel delivery chamber becomes smaller, so that air and fuel oil gas velocity increase, it is uniform to be more advantageous to gaseous mixture granule atomization,
It is more complete to help engine combustion.Meanwhile air air flue and main oil supply gallery can be respectively to the scavenging air belts of two stroke engine
Ozone is provided and provides gaseous mixture to the air intake duct of engine, uses two stroke engine first in exhaust fresh
Exhaust gas after burning in cylinder is discharged air, rather than is reduced exhausting waste gas unburned with the gaseous mixture not burnt
It burns gaseous mixture and engine is discharged, that is, saved the requirement that fuel oil makes the exhaust contaminant of engine meet emission regulation again.And
And the exhaust gas in cylinder can be discharged ozone in time, can reduce or reduce when IO Intake Valve Opens, not drain
Exhaust gas still has certain pressure in cylinder, so that portion, which can be gone out to be formed from the inlet valve of unlatching, regurgitates air-flow, and shape
The phenomenon that being regurgitated at engine.
Further, the mixture pipe both ends are respectively set jagged, and two notches are symmetrical and are oppositely arranged.
The beneficial effect generated by adopting the above technical scheme is, it is ensured that is able to achieve normal work under the lesser aperture of idling point
Gaseous mixture smoothly passes in and out.
Further, the shape of the mixture pipe is one of round, ellipse, polygon.
Further, the rotation valve plunger material is metal material or plastic material.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1-Fig. 2 attached drawing is the structural schematic diagram of existing rotation valve plunger.
Fig. 3 attached drawing is the structural schematic diagram of the rotary valve diaphragm type carburator in the present invention.
Fig. 4 attached drawing is the three dimensional structure diagram of rotation valve plunger provided by the invention.
Fig. 5 attached drawing is the left view of Fig. 4 attached drawing.
Fig. 6 attached drawing is the right view of Fig. 4 attached drawing.
Fig. 7 attached drawing is the front view of Fig. 4 attached drawing.
Fig. 8 attached drawing is A-A cross-sectional view in Fig. 7.
Fig. 9 attached drawing is the top view of Fig. 4 attached drawing.
Figure 10 attached drawing is B-B cross-sectional view in Fig. 9.
Wherein: 1- carburetor body, 2- fuel delivery chamber, 21- inlet chamber, 22- mixing chamber, 3- rotate valve plunger, and 31- connects
Connect road, 4- mixture pipe, 41- notch, 5- air duct, the main oil supply gallery of 6-, the channel 100-.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 3-Figure 10, the embodiment of the invention discloses a kind of rotary valve diaphragm type carburator, including carburetor body 1,
Fuel delivery chamber 2 is offered on carburetor body 1, fuel delivery chamber 2 includes inlet chamber 21 and the mixing being connected to inlet chamber 21
Room 22, being provided between inlet chamber 21 and mixing chamber 22 makes inlet chamber 21 and the conducting of mixing chamber 22 or closed rotation valve plunger 3,
It is offered on rotation valve plunger 3 and constitutes the conducting of fuel delivery chamber 2 or closed interface channel 31, which is characterized in that interface channel
31 lower bottom walls are connected with mixture pipe 4, and mixture pipe 4 is arranged along the axial direction of interface channel 31, and 4 both ends of mixture pipe point
Other places are in the air inlet of interface channel 31 and gas outlet；
Wherein, the space between interface channel 31 and mixture pipe 4 is the air be connected with inlet chamber 21 and mixing chamber 22
Air flue 5,4 inner space of mixture pipe are main oil supply gallery 6.
Carburetor fills on the engine, when making a service test, has idling mode (after guaranteeing that engine normally starts
State when minimum stable revolving speed), process acceleration, deceleration state, full-speed state (working condition of highest stabilizing revolving speed), therefore
The aperture of rotary valve plunger is less than normal under idling mode, i.e., only guarantees that the air inflow of air and engine are installed under air inlet small guide vane
The outlet of the gas outlet gaseous mixture of connector.Therefore, in order to guarantee under idling mode can smoothly air inlet and outlet, gaseous mixture
4 both ends of pipe are respectively set jagged 41, and two notches 41 are symmetrical and are oppositely arranged.
The shape of mixture pipe 4 is one of round, ellipse, polygon.
Rotating 3 material of valve plunger is metal material or plastic material.
Mixture pipe is set in the interface channel in the rotation valve plunger, which is divided into air air flue and main fuel feeding
Channel, such structure have the effect of turbulent flow than existing clear opening or horn taper hole, and relative to original structure,
Because the size of fuel delivery chamber becomes smaller, so that air and fuel oil gas velocity increase, it is uniform to be more advantageous to gaseous mixture granule atomization,
It is more complete to help engine combustion.Meanwhile air air flue and main oil supply gallery can be respectively to the scavenging air belts of two stroke engine
Ozone is provided and provides gaseous mixture to the air intake duct of engine, uses two stroke engine first in exhaust fresh
Exhaust gas after burning in cylinder is discharged air, rather than is reduced exhausting waste gas unburned with the gaseous mixture not burnt
It burns gaseous mixture and engine is discharged, that is, saved the requirement that fuel oil makes the exhaust contaminant of engine meet emission regulation again.And
And the exhaust gas in cylinder can be discharged ozone in time, can reduce or reduce when IO Intake Valve Opens, not drain
Exhaust gas still has certain pressure in cylinder, so that portion, which can be gone out to be formed from the inlet valve of unlatching, regurgitates air-flow, and shape
The phenomenon that being regurgitated at engine.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (4)
1. a kind of rotary valve diaphragm type carburator, including carburetor body (1), fuel oil confession is offered on the carburetor body (1)
Give chamber (2), the fuel delivery chamber (2) includes inlet chamber (21) and the mixing chamber (22) being connected to inlet chamber (21), it is described into
Being provided between air cavity (21) and the mixing chamber (22) makes the inlet chamber (21) and the mixing chamber (22) to be connected or close
Rotation valve plunger (3), offer on the rotation valve plunger (3) and constitute fuel delivery chamber (2) conducting or closed company
It connects road (31), which is characterized in that bottom wall is connected with mixture pipe (4), the gaseous mixture under the interface channel (31)
The axial direction setting of (4) along the interface channel (31) is managed, and the mixture pipe (4) both ends are respectively at the interface channel
(31) in air inlet and gas outlet；
Wherein, the space between the interface channel (31) and the mixture pipe (4) be with the inlet chamber (21) with it is described
The air air flue (5) of mixing chamber (22) conducting, mixture pipe (4) inner space are main oil supply gallery (6).
2. a kind of rotary valve diaphragm type carburator according to claim 1, which is characterized in that mixture pipe (4) both ends
It is respectively set jagged (41), two notches (41) are symmetrical and are oppositely arranged.
3. a kind of rotary valve diaphragm type carburator according to claim 1, which is characterized in that the shape of the mixture pipe (4)
Shape is one of round, ellipse, polygon.
4. a kind of rotary valve diaphragm type carburator according to claim 1, which is characterized in that rotation valve plunger (3) material
Matter is metal material or plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910244892.2A CN109826726B (en) | 2019-03-28 | 2019-03-28 | Rotary valve diaphragm carburetor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910244892.2A CN109826726B (en) | 2019-03-28 | 2019-03-28 | Rotary valve diaphragm carburetor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109826726A true CN109826726A (en) | 2019-05-31 |
| CN109826726B CN109826726B (en) | 2024-06-21 |
Family
ID=66873166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910244892.2A Active CN109826726B (en) | 2019-03-28 | 2019-03-28 | Rotary valve diaphragm carburetor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109826726B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2786298Y (en) * | 2005-03-15 | 2006-06-07 | 黄洪新 | Gasoline-economizing carburetor for small-sized gasoline engine |
| CN201671727U (en) * | 2010-05-12 | 2010-12-15 | 浙江瑞星化油器制造有限公司 | Diaphragm type carburetor with function of eliminating impulse chamber fuel oil accumulation |
| CN202402171U (en) * | 2012-01-11 | 2012-08-29 | 浙江瑞星化油器制造有限公司 | Layered carburetor for diaphragm of rotary valve |
| CN209637905U (en) * | 2019-03-28 | 2019-11-15 | 福建华龙化油器有限公司 | A kind of rotary valve diaphragm type carburator |
-
2019
- 2019-03-28 CN CN201910244892.2A patent/CN109826726B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2786298Y (en) * | 2005-03-15 | 2006-06-07 | 黄洪新 | Gasoline-economizing carburetor for small-sized gasoline engine |
| CN201671727U (en) * | 2010-05-12 | 2010-12-15 | 浙江瑞星化油器制造有限公司 | Diaphragm type carburetor with function of eliminating impulse chamber fuel oil accumulation |
| CN202402171U (en) * | 2012-01-11 | 2012-08-29 | 浙江瑞星化油器制造有限公司 | Layered carburetor for diaphragm of rotary valve |
| CN209637905U (en) * | 2019-03-28 | 2019-11-15 | 福建华龙化油器有限公司 | A kind of rotary valve diaphragm type carburator |
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| Publication number | Publication date |
|---|---|
| CN109826726B (en) | 2024-06-21 |
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