CN114033578B - Double-channel carburetor for stratified scavenging of two-stroke internal combustion engine - Google Patents
Double-channel carburetor for stratified scavenging of two-stroke internal combustion engine Download PDFInfo
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- CN114033578B CN114033578B CN202111394774.3A CN202111394774A CN114033578B CN 114033578 B CN114033578 B CN 114033578B CN 202111394774 A CN202111394774 A CN 202111394774A CN 114033578 B CN114033578 B CN 114033578B
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- 230000002000 scavenging effect Effects 0.000 title claims abstract description 19
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 13
- 238000005192 partition Methods 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000000446 fuel Substances 0.000 claims description 19
- 238000000926 separation method Methods 0.000 claims description 16
- 239000002253 acid Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 21
- 238000005516 engineering process Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M11/00—Multi-stage carburettors, Register-type carburettors, i.e. with slidable or rotatable throttling valves in which a plurality of fuel nozzles, other than only an idling nozzle and a main one, are sequentially exposed to air stream by throttling valve
- F02M11/06—Other carburettors with throttling valve of flap or butterfly type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M17/00—Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention discloses a double-channel carburetor for stratified scavenging of a two-stroke internal combustion engine, which is a butterfly valve type carburetor and is provided with an air inlet channel penetrating through the whole carburetor, wherein the air inlet channel comprises two throttle valves for controlling air inlet of the carburetor, the two throttle valves are divided into an inner throttle valve and an outer throttle valve, the inner throttle valve is close to the outlet end of the air inlet channel, the outer throttle valve is close to the inlet end of the air inlet channel, the centers of valve plates of the two throttle valves are respectively provided with a rotating shaft, each valve plate can rotate by taking the rotating shaft of the valve plate as the center, when the two throttle valve plates rotate to the horizontal state, the two throttle valve plates are connected together through a flexible partition plate, the air inlet channel is divided into an upper layer channel and a lower layer channel, and the flexible partition plate is of a movable structure and can move along with the rotation of the throttle valve plates. The invention can divide the air inlet channel into two parts to form a gas channel and a pure air channel, can provide two gases for the two-stroke layered scavenging engine and reduce the gas loss.
Description
Technical Field
The invention relates to the field of carburettors, in particular to a double-channel carburetor for stratified scavenging of a two-stroke internal combustion engine.
Background
The carburetor is a mechanical device which mixes gasoline and air in a certain proportion under the action of vacuum generated by the operation of an engine. A carburetor is a precise mechanical device which utilizes the kinetic energy of the intake air flow to atomize gasoline. The atomized mixed gas is ignited under certain temperature and pressure to generate explosion and generate power. The butterfly valve type carburetor has two throttle valves for controlling air intake of the carburetor. When the engine is started, the throttle valve plate is in a closed channel state to provide a relatively concentrated mixed gas; after the engine is started, the throttle plate is in a channel opening state to provide a large amount of air-fuel mixture to enable the engine to operate in a high-speed state. The exhaust and intake of the two-stroke engine are in the same stroke, and the exhaust hole is also in an open state during the intake, wherein 20-30% of gas can be lost and the combustion is insufficient, so that the exhaust emission is higher. The latest layered scavenging technology well solves the defects of the two-stroke engine, and the principle is that the exhaust gas burnt by the cylinder is removed by air firstly, and then the cylinder is filled with mixed gas, so that the scavenging loss is effectively reduced, the combustion efficiency is improved, and the emission is reduced. The existing layered scavenging technology using a butterfly valve type carburetor mainly comprises two types, one is that a fuel nozzle sprays fuel on a butterfly valve sheet of a throttle valve, and the fuel is automatically layered by utilizing the natural laminar flow of fluid by means of the butterfly valve sheet, wherein one layer is fuel mixed air, and the other layer is pure air. Because two butterfly valve blocks of whole passageway have certain interval and circular, this kind of technique can not be with two kinds of gas complete divisions, still has two kinds of circumstances of mixing each other and revealing. The other is that a fixed device is arranged in the air inlet channel, the air inlet channel is directly divided into two channels, one is a mixed gas channel, and the other is an air channel. However, this technique is not ideal for engine starting. Because the engine needs to have a larger fuel content and a smaller air content in the mixed gas at the time of starting and idling, the explosion ignition is facilitated. In the technology, the air inlet channel of the engine in the starting and idling states is also in a relatively layered state, and more air is not beneficial to the starting and idling stability of the engine.
Disclosure of Invention
In order to solve the above problems, the invention provides a double-channel carburetor for stratified scavenging of a two-stroke internal combustion engine.
The technical scheme of the invention is as follows: a double-channel carburetor for stratified scavenging of a two-stroke internal combustion engine is a butterfly valve type carburetor and is provided with an air inlet channel penetrating through the whole carburetor, the air inlet channel comprises two throttle valves used for controlling air inlet of the carburetor, the two throttle valves are divided into an inner throttle valve and an outer throttle valve, the inner throttle valve is close to an outlet end of the air inlet channel, the outer throttle valve is close to an inlet end of the air inlet channel, the centers of valve plates of the two throttle valves are respectively provided with a rotating shaft, each valve plate can rotate by taking the rotating shaft of the valve plate as the center, when the two throttle valve plates rotate to be in a horizontal state, the two throttle valve plates are connected together through a flexible partition plate, the air inlet channel is divided into an upper layer channel and a lower layer channel, and the flexible partition plate is of a movable structure and can move along with the rotation of the throttle valve plates.
Preferably, the inboard choke valve include inboard throttle valve piece, the outside choke valve includes outside throttle valve piece, inboard throttle valve piece's pivot and outside throttle valve piece's pivot parallel arrangement, and perpendicular with inlet channel's axial direction is mutually perpendicular, when inlet channel admits air, inboard throttle valve piece and outside throttle valve piece overturn to the horizontality along respective pivot, when inlet channel is non-inlet state, inboard throttle valve piece and outside throttle valve piece reset to upright state, block inlet channel's the admit air.
Preferably, when the inner throttle plate and the outer throttle plate are turned to be in an upright state, the peripheral profile of the valve plate is attached to the inner wall of the air inlet channel to block air inlet of the air inlet channel.
Preferably, when the inner throttle plate and the outer throttle plate are turned to the upright state, the valve plate is in an inclined state with the upper end close to the inlet end of the air inlet passage and the lower end close to the outlet end of the air inlet passage.
Preferably, the flexible separation sheet is a sheet-shaped body, a first step groove is formed in the upper side of the left end of the flexible separation sheet, a second step groove is formed in the lower side of the right end of the flexible separation sheet, the outline of the first step groove is consistent with the outline of one end, close to the outer side throttle plate, of the inner side throttle plate, the outline of the second step groove is consistent with the outline of one end, close to the inner side throttle plate, of the outer side throttle plate, a protruding fixing column is arranged in the second step groove, a fixing hole is formed in the outer side throttle plate, and the fixing column is arranged in the fixing hole to achieve fixed connection of the flexible separation sheet and the outer side throttle plate.
Preferably, when the two throttle plates rotate to a horizontal state, the first step groove on the flexible separating plate is arranged below the inner throttle plate, the side edge of the first step groove is attached to the edge contour of one end, close to the outer throttle plate, of the inner throttle plate, the second step groove on the flexible separating plate is arranged above the outer throttle plate, the side edge of the second step groove is attached to the edge contour of one end, close to the inner throttle plate, of the outer throttle plate, and the front edge and the rear edge of the flexible separating plate are respectively attached to the front wall and the rear wall of the air inlet channel; when the two throttle valves are in an upright state, the flexible separating sheet is separated from the inner side throttle valve sheet, the right end of the flexible separating sheet and the outer side throttle valve sheet are fixed together through the fixing column, and the left end of the flexible separating sheet is attached to the lower wall of the air inlet channel.
Preferably, the flexible separating sheet is a flexible and bendable separating sheet and has the characteristics of acid resistance, alkali resistance and corrosion resistance.
More preferably, the flexible separating sheet (4) is made of rubber.
Preferably, the upper arm of the inlet end of the intake passage is provided with a fuel nozzle which is located above the outer throttle plate and faces the outer throttle plate in the same direction as the outer throttle plate is inclined in the standing state.
The invention has the beneficial effects that: the invention adds a flexible separation sheet on the outer throttle valve sheet, the flexible separation sheet can move along with the rotation of the throttle valve sheet, the throttle valve sheet is in a channel opening state under a high speed state, the inner throttle valve sheet, the outer throttle valve sheet and the flexible separation sheet divide the channel into two parts to form a gas channel and a pure air channel, and the leakage of gas is effectively avoided. The two gases required by layered scavenging can be provided for the two-stroke layered scavenging engine, so that the gas loss is reduced, and the emission is reduced.
Drawings
Fig. 1 is an external structural view of the present invention.
Fig. 2 is a sectional view of the intake passage of the present invention in a closed state.
Fig. 3 is a sectional view of the intake passage of the present invention in an open state.
Figure 4 is one of the perspective views of the flexible separator of the present invention.
Figure 5 is a second perspective view of the flexible separator of the present invention.
Description of reference numerals:
1: an air intake passage; 2: an outlet end; 3: an inboard throttle plate; 4: a flexible separator sheet; 5: an inlet end; 6: an outboard throttle plate; 7: a fuel nozzle; 8: fixing a column; 9: a first step groove; 10: a second step groove; a: a gas channel; b: a pure air channel.
Detailed Description
The invention is further explained below with reference to the drawings and examples.
As shown in figures 1-3, the invention is a butterfly valve type carburetor, which is provided with an air inlet channel 1 penetrating through the whole carburetor, the air inlet channel 1 internally comprises two throttle valves for controlling air inlet of the carburetor, the two throttle valves are divided into an inner throttle valve and an outer throttle valve, the inner throttle valve is close to an outlet end 2 of the air inlet channel 1, the outer throttle valve is close to an inlet end 5 of the air inlet channel 1, the centers of valve plates of the two throttle valves are respectively provided with a rotating shaft, each valve plate can rotate by taking the rotating shaft of the valve plate as the center, when the two throttle valve plates rotate to the horizontal state, the two throttle valve plates are connected together through a flexible separating plate 4, and the air inlet channel 1 is divided into an upper layer channel and a lower layer channel, and the flexible separating plate 4 is of a movable structure and can move along with the rotation of the throttle valve plates.
In this embodiment, the inboard choke valve include inboard throttle valve 3, the outside choke valve includes outside throttle valve 6, inboard throttle valve 3's pivot and outside throttle valve 6's pivot parallel arrangement, and perpendicular with inlet channel 1's axial direction is mutually perpendicular, when inlet channel 1 admits air, inboard throttle valve 3 and outside throttle valve 6 overturn to the horizontality along respective pivot, when inlet channel 1 is the non-admission state, inboard throttle valve 3 and outside throttle valve 6 reset to the upright state, block inlet channel 1's the admitting air.
In this embodiment, when the inner throttle plate 3 and the outer throttle plate 6 are turned to be in the vertical state, the peripheral contour of the valve plates is attached to the inner wall of the air inlet passage 1 to block air inlet of the air inlet passage 1.
In this embodiment, when the inner throttle plate 3 and the outer throttle plate 6 are turned to be in the upright state, the valve plates are in an inclined state in which the upper ends are close to the inlet end 5 of the air inlet passage 1 and the lower ends are close to the outlet end 2 of the air inlet passage 1.
As shown in fig. 4-5, in this embodiment, the flexible separating sheet 4 is a sheet-shaped body, a first step groove 9 is disposed on an upper side of a left end of the flexible separating sheet 4, a second step groove 10 is disposed on a lower side of a right end of the flexible separating sheet 4, a contour of the first step groove 9 is identical to an outer contour of one end, close to the outer throttle plate 6, of the inner throttle plate 3, a contour of the second step groove 10 is identical to an outer contour of one end, close to the inner throttle plate 3, of the outer throttle plate 6, a protruding fixing column 8 is disposed in the second step groove 10, a fixing hole is disposed on the outer throttle plate 6, and the fixing column 8 is disposed in the fixing hole to realize fixed connection between the flexible separating sheet 4 and the outer throttle plate 6.
In this embodiment, when the two throttle plates rotate to a horizontal state, the first stepped groove 9 on the flexible separation plate 4 is arranged below the inner throttle plate 3, the side edge of the first stepped groove 9 is attached to the edge profile of one end, close to the outer throttle plate 6, of the inner throttle plate 3, the second stepped groove 10 on the flexible separation plate 4 is arranged above the outer throttle plate 6, the side edge of the second stepped groove 10 is attached to the edge profile of one end, close to the inner throttle plate 3, of the outer throttle plate 6, and the front edge and the rear edge of the flexible separation plate 4 are respectively attached to the front wall and the rear wall of the air inlet channel 1; when the two throttle valves are in an upright state, the flexible separating sheet 4 is separated from the inner side throttle valve plate 3, the right end of the flexible separating sheet 4 and the outer side throttle valve plate 6 are fixed together through the fixing column 8, and the left end of the flexible separating sheet 4 is attached to the lower wall of the air inlet channel 1. The structure can effectively seal the gaps between the inner throttle plate 3 and the outer throttle plate 6 and between the inner throttle plate and the outer throttle plate and the air inlet channel 1, and completely realize that the whole air inlet channel 1 is divided into a gas channel A and a pure air channel B.
In this embodiment, the flexible spacers 4 are flexible and bendable spacers, have acid, alkali and corrosion resistance, and may be made of a material such as rubber. Because the flexible partition plate 4 is arranged in the carburetor, the times of maintenance and replacement can be effectively reduced by adopting the material, and the service life of the carburetor is prolonged.
In this embodiment, the upper arm of the inlet end 5 of the intake passage 1 is provided with a fuel nozzle 7, and the fuel nozzle 7 is located above the outer throttle plate 6 and faces the outer throttle plate 6, and the inclined direction of the fuel nozzle is the same as the inclined direction of the outer throttle plate in the upright state. The structure is arranged to realize that oil sprayed by the fuel nozzle is conveniently driven by air sucked by the inlet end of the air inlet channel and flows to the outlet end of the air inlet channel.
The working principle is as follows: in the invention, when the engine is started, the inner throttle plate 3 and the outer throttle plate 6 are in an upright state, the flexible spacing piece 4 is attached to the lower wall of the air inlet channel 1, the fuel nozzle 7 injects fuel between the inner throttle plate 3 and the outer throttle plate 6, the fuel content in the whole space is high, and the fuel is mixed with a small part of throttled air. This portion of the mixture is drawn into the engine first and, because of the high fuel content, is more readily ignited by the detonation at the same temperature and pressure. Compared with the prior art that a fixed device is arranged in the air inlet channel 1, the air inlet channel 1 is directly divided into two channels, and the engine is started smoothly. Then the flexible separation sheet 4 can move along with the rotation of the throttle plate, when the flexible separation sheet 4 rotates along with the throttle plate from an upright state to a horizontal state, air gradually enters from the inlet end 5 of the air inlet channel 1 until the throttle plate is in a channel opening state in a high-speed state. At the moment, the inner throttle valve plate 3, the outer throttle valve plate 6 and the flexible separating plate 4 divide the channel into two parts to form a gas channel A and a pure air channel B, so that the gas is effectively prevented from leaking, two gases required by layered scavenging can be provided for the two-stroke layered scavenging engine, the gas loss is reduced, and the emission is reduced.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "connected" and the like are to be construed broadly, e.g., as meaning fixedly attached, detachably attached, or integrally formed; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A double-channel carburetor for stratified scavenging of a two-stroke internal combustion engine is characterized in that the carburetor is a butterfly valve type carburetor and is provided with an air inlet channel (1) penetrating through the whole carburetor, two throttling valves are arranged in the air inlet channel (1) and used for controlling air inlet of the carburetor, the two throttling valves are divided into an inner throttling valve and an outer throttling valve, the inner throttling valve is close to an outlet end (2) of the air inlet channel (1), the outer throttling valve is close to an inlet end (5) of the air inlet channel (1), rotating shafts are arranged at the centers of valve plates of the two throttling valves, each valve plate can rotate by taking the rotating shaft of the valve plate as the center, when the two throttling valve plates rotate to the horizontal state, the two throttling valve plates are connected together through a flexible partition plate (4), the air inlet channel (1) is divided into an upper layer of channel and a lower layer of channel, and the flexible partition plate (4) is of a movable structure and can move along with the rotation of the throttling valve plates;
the inner side throttle valve comprises an inner side throttle valve plate (3), the outer side throttle valve comprises an outer side throttle valve plate (6), a rotating shaft of the inner side throttle valve plate (3) and a rotating shaft of the outer side throttle valve plate (6) are arranged in parallel and are perpendicular to the axial direction of the air inlet channel (1), when the air inlet channel (1) admits air, the inner side throttle valve plate (3) and the outer side throttle valve plate (6) are turned to be in a horizontal state along the respective rotating shafts, and when the air inlet channel (1) is in a non-air-admission state, the inner side throttle valve plate (3) and the outer side throttle valve plate (6) are reset to be in an upright state to block air admission of the air inlet channel (1);
when the inner throttle valve plate (3) and the outer throttle valve plate (6) are turned to be in an upright state, the peripheral profile of the valve plates is attached to the inner wall of the air inlet channel (1) to block air inlet of the air inlet channel (1);
when the inner throttle valve plate (3) and the outer throttle valve plate (6) are turned to be in an upright state, the valve plates are in an inclined state that the upper ends of the valve plates are close to the inlet end (5) of the air inlet channel (1) and the lower ends of the valve plates are close to the outlet end (2) of the air inlet channel (1);
the flexible separation sheet (4) is a sheet-shaped body, a first step groove (9) is formed in the upper side of the left end of the flexible separation sheet (4), a second step groove (10) is formed in the lower side of the right end of the flexible separation sheet (4), the outline of the first step groove (9) is consistent with the external outline of one end, close to the outer side throttle valve plate (6), of the inner side throttle valve plate (3), the outline of the second step groove (10) is consistent with the external outline of one end, close to the inner side throttle valve plate (3), of the outer side throttle valve plate (6), a protruding fixing column (8) is arranged in the second step groove (10), a fixing hole is formed in the outer side throttle valve plate (6), and the fixing column (8) is arranged in the fixing hole to achieve fixed connection of the flexible separation sheet (4) and the outer side throttle valve plate (6).
2. The double-channel carburetor for stratified scavenging of the two-stroke internal combustion engine according to claim 1, characterized in that when the two throttle plates rotate to the horizontal state, the first step groove (9) on the flexible partition plate (4) is arranged below the inner throttle plate (3), the side edge of the first step groove (9) is attached to the edge contour of one end, close to the outer throttle plate (6), of the inner throttle plate (3), the second step groove (10) on the flexible partition plate (4) is arranged above the outer throttle plate (6), the side edge of the second step groove (10) is attached to the edge contour of one end, close to the inner throttle plate (3), of the outer throttle plate (6), and the front edge and the rear edge of the flexible partition plate (4) are respectively attached to the front wall and the rear wall of the air inlet channel (1); when the two throttle valves are in an upright state, the flexible separating sheet (4) is separated from the inner side throttle valve sheet (3), the right end of the flexible separating sheet (4) is fixed with the outer side throttle valve sheet (6) through a fixing column (8), and the left end of the flexible separating sheet (4) is attached to the lower wall of the air inlet channel (1).
3. A twin path carburettor for stratified scavenging in a two stroke internal combustion engine as claimed in claim 1 in which the flexible partition (4) is a flexible pliable partition with acid, base and corrosion resistance.
4. A twin path carburettor for stratified scavenging of a two stroke internal combustion engine as claimed in claim 3 in which the flexible diaphragm (4) is of rubber material.
5. A twin-channel carburettor for stratified scavenging in a two-stroke internal combustion engine as claimed in claim 1 in which the inlet end (5) of the inlet channel (1) is provided with a fuel nozzle (7) at the upper arm, the fuel nozzle (7) being located above the outer throttle blade (6) and facing the outer throttle blade (6) in the same direction as the outer throttle blade when in the upright position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111394774.3A CN114033578B (en) | 2021-11-23 | 2021-11-23 | Double-channel carburetor for stratified scavenging of two-stroke internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111394774.3A CN114033578B (en) | 2021-11-23 | 2021-11-23 | Double-channel carburetor for stratified scavenging of two-stroke internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114033578A CN114033578A (en) | 2022-02-11 |
| CN114033578B true CN114033578B (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111394774.3A Active CN114033578B (en) | 2021-11-23 | 2021-11-23 | Double-channel carburetor for stratified scavenging of two-stroke internal combustion engine |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005171808A (en) * | 2003-12-09 | 2005-06-30 | Aisan Ind Co Ltd | Throttle control device |
| JP2006161776A (en) * | 2004-12-10 | 2006-06-22 | Walbro Japan Inc | Carburetor for stratified scavenging |
| DE102005003559B4 (en) * | 2005-01-26 | 2014-07-03 | Andreas Stihl Ag & Co. Kg | carburettor |
| IES20060353A2 (en) * | 2006-05-05 | 2007-10-17 | Barcarole Ltd | A carburetor |
| JP5732542B2 (en) * | 2010-11-08 | 2015-06-10 | ハスクバーナ・ゼノア株式会社 | Air supply device for stratified scavenging two-stroke engine |
| DE102010054840B4 (en) * | 2010-12-16 | 2020-03-26 | Andreas Stihl Ag & Co. Kg | Two-stroke engine |
| WO2015130932A1 (en) * | 2014-02-28 | 2015-09-03 | Walbro Engine Management, L.L.C. | Carburetor with scavenging fluid flow |
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