CN210289961U - Gasoline engine carburetor meeting EPA/CARB emission standard - Google Patents
Gasoline engine carburetor meeting EPA/CARB emission standard Download PDFInfo
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- CN210289961U CN210289961U CN201920704522.8U CN201920704522U CN210289961U CN 210289961 U CN210289961 U CN 210289961U CN 201920704522 U CN201920704522 U CN 201920704522U CN 210289961 U CN210289961 U CN 210289961U
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Abstract
The utility model provides a gasoline engine carburetor that satisfies EPA/CARB emission standard belongs to energy-concerving and environment-protective field. It includes the frame, the frame in run through the air main duct, the oil pipe part can remove along the frame axial repeatedly, the oil pipe part include a plurality of oil-out, the oil pipe part be equipped with the rotation of air main duct spout switch of being connected, the oil pipe part on be equipped with air main duct swing joint and be used for the air throttle of control air quantity, the air throttle can remove along the frame axial repeatedly. The utility model discloses the advantage lies in being equipped with the oil-saving groove in the oil needle among the device, and leaves the space between oil-out and the oil groove, and the oil mist can condense into fluid and flow back to the oil pocket in space and the oil-saving groove between oil-out and the oil groove, prevents in too much oil mist gets into the air main duct, also prevents that the too much burning that leads to of oil mass from inadequately producing pollutants such as carbon monoxide when reaching energy-conserving effect.
Description
Technical Field
The utility model belongs to energy-concerving and environment-protective field especially relates to a gasoline engine carburetor that satisfies EPA/CARB emission standard.
Background
The carburetor of motorcycle is a mechanical device which mixes gasoline and air in a certain proportion under the action of vacuum generated by the engine. A carburetor is a precise mechanical device which utilizes the kinetic energy of the intake air flow to atomize gasoline. Because the maximum driving speed of the motorcycle is higher, the speed-up speed of the motorcycle is also higher, and in the speed-up or high-speed driving process, the engine needs to burn a large amount of mixed gas of oil and air in a short time to supply energy, and because the air supply amount is difficult to increase, the supplied oil amount is too much, and the pollutant emission is increased due to insufficient combustion easily.
For example, chinese patent document discloses a vertical lift oil level carburetor including [ patent application No.: [ CN201410162614.X ], including carburetor float chamber, oil feed check valve seat, oil feed needle couple, float rocking arm, independent float, float lift guiding axle, float pin, float axis of rotation, the device float stroke is long, the oil feed volume is big, and sensitivity is high, can the accurate control oil level, but in the speed-up or the high-speed driving process, easy burning inadequately leads to the pollutant emission to increase.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem, provide the gasoline engine carburetor that satisfies EPA/CARB emission standard.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
a gasoline engine carburetor meeting EPA/CARB emission standards comprises a base, wherein an air main air channel penetrates through the base, an oil pipe part is movably connected in the air main air channel and can move repeatedly along the axial direction of the base, the oil pipe part comprises a plurality of oil outlets, the oil pipe part is provided with a nozzle switch which is rotatably connected with the air main air channel, the oil pipe part is provided with a throttle valve which is movably connected with the air main air channel and is used for controlling air quantity, and the throttle valve can move repeatedly along the axial direction of the base.
In the gasoline engine carburetor meeting the EPA/CARB emission standard, the oil pipe component further comprises an oil needle capable of moving repeatedly along the axial direction of the engine base, a pressurizing groove is arranged at the bottom of the oil needle, the top of the pressurizing groove is communicated with an oil saving groove, and the side end wall of the oil saving groove is communicated with a plurality of oil outlets transversely penetrating through the oil needle.
In the gasoline engine carburetor meeting the EPA/CARB emission standard, the cross section area of the top of the booster groove is smaller than that of the bottom of the booster groove, the oil outlets are divided into a plurality of layers and are uniformly distributed on the side end wall of the oil-saving groove, and the oil outlets on the oil outlets of the plurality of layers are in one-to-one correspondence.
In the gasoline engine carburetor meeting the EPA/CARB emission standard, a plurality of guide blocks fixed on the main air duct are arranged on two sides of the throttle valve, and the end surface of the guide block, which is in contact with the throttle valve, is in a smooth circular arc shape.
In the gasoline engine carburetor meeting the EPA/CARB emission standard, the nozzle switch can rotate 180 degrees in the main air duct, and when the nozzle switch is vertically arranged, two ends of the nozzle switch are abutted against the end part of the main air duct.
In the gasoline engine carburetor meeting the EPA/CARB emission standard, the oil cavity is communicated with an oil outlet groove, the oil needle can repeatedly move along the axial direction of the oil outlet groove, and a gap is reserved between the oil outlet and the oil outlet groove.
In the gasoline engine carburetor meeting the EPA/CARB emission standard, when the throttle valve penetrates through the main air duct, all the oil outlets are positioned in the oil outlet groove, and the nozzle switch is vertically arranged.
The oil cavity in the gasoline engine carburetor meeting the EPA/CARB emission standard is also communicated with an oil filling groove, a floater is movably connected in the oil filling groove, and the floater extends out of the oil filling groove and is in rotating fit connection with the inner end wall of the oil cavity.
In the gasoline engine carburetor meeting the EPA/CARB emission standard, the top of the oiling groove is communicated with an oil stopping groove, the top of the floater is in a taper shape, and when the floater moves upwards along the oiling groove under the buoyancy action of oil in the oil cavity, the floater moves towards the direction entering the oil stopping groove.
In the above-mentioned gasoline engine carburetor meeting EPA/CARB emission standards, when the top tip cone of the float fully enters the oil stopping groove, the oil outlet at the bottommost layer on the oil needle is higher than the level of the oil surface in the oil chamber.
Compared with the prior art, the utility model has the advantages of:
1. an oil saving groove is formed in an oil needle in the device, a gap is reserved between the oil outlet and the oil outlet groove, oil mist can be condensed into oil liquid in the gap between the oil outlet and the oil outlet groove and the oil saving groove and flows back to the oil cavity, excessive oil mist is prevented from entering an air main air channel, and pollutants such as carbon monoxide and the like caused by insufficient combustion due to excessive oil amount are prevented when the energy-saving effect is achieved.
2. The device can independently adjust the maximum or minimum air inlet amount of the throttle valve according to the quality of oil and whether the combustion is complete, and ensures the sufficient combustion.
Drawings
Fig. 1 is an overall schematic view of the present invention;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
fig. 3 is a schematic view of another aspect of the present invention.
In the figure: the device comprises a machine base 10, an air main air duct 11, an oil pipe component 12, an oil outlet 13, a nozzle switch 14, a throttle valve 15, a pressurizing groove 17, an oil saving groove 18, an oil cavity 19, an oil outlet groove 20, an oil needle 21, an oil filling groove 22, an oil stopping groove 23, a floater 24 and a guide block 25.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-3, a gasoline engine carburetor meeting EPA/CARB emission standards comprises a base 10, an air main duct 11 penetrates through the base 10, an oil pipe member 12 is movably connected in the air main duct 11, the oil pipe member 12 can move repeatedly along the axial direction of the base 10, the oil pipe member 12 includes a plurality of oil outlets 13, the oil pipe member 12 is provided with a nozzle switch 14 rotatably connected with the air main duct 11, the oil pipe member 12 is provided with a throttle valve 15 movably connected with the air main duct 11 and used for controlling air quantity, and the throttle valve 15 can move repeatedly along the axial direction of the base 10.
When the engine power and the vehicle running speed need to be changed during the operation of the engine, the oil pipe part 12 slides in the main air duct 11 to change the oil amount provided by the oil pipe part 12 for the operation of the engine, because the oil needs to have enough air amount for combustion, the throttle valve 15 is used for controlling the air intake amount, during the oil combustion, when the oil mist is too little, the oil mist is insufficiently combusted, the carbon monoxide generated by the combustion is excessively discharged into the air to cause pollution, when the oil mist is too little, the oil mist is excessively combusted, although the energy supply is ensured to be sufficiently combusted, because the air amount is excessively reduced, the slow engine power increasing function is seriously insufficient, therefore, the oil mist and the air amount need to be kept in a proper proportion, namely, the oil pipe part 12 and the throttle valve 15 are respectively used for controlling the fuel oil amount and the air amount, when the power of the engine is increased, the nozzle switch 14 opens the main air duct 11, and the oil pipe part 12 and the throttle valve 15 move upwards along the axial direction of the main air duct 11 according to the power raised by the engine, so that more oil and air are provided.
The oil pipe component 12 further comprises an oil needle 21 capable of moving repeatedly along the axial direction of the engine base 10, a pressurizing groove 17 is formed in the bottom of the oil needle 21, an oil saving groove 18 is communicated with the top of the pressurizing groove 17, and the side end wall of the oil saving groove 18 is communicated with a plurality of oil outlets 13 transversely penetrating through the oil needle 21. Under the action of pressure, oil mist formed by oil flows into the oil saving groove 18 from the pressurizing groove 17, flows into the air main air duct 11 through the oil outlets 13, enables the oil needles 21 to move upwards along the axial direction of the air main air duct 11 according to the power quantity raised by an engine, enables the oil outlets 13 to drive into the air main air duct 11, and when the oil mist is too much, the oil saving groove 18 can collect the redundant oil mist and enables the oil mist to be condensed into oil liquid, so that proper oil mist quantity flows into the air main air duct 11, and pollution caused by insufficient oil mist combustion is prevented.
The cross section area of the top of the pressurizing groove 17 is smaller than that of the bottom of the pressurizing groove 17, the oil outlets 13 are divided into a plurality of layers and are uniformly distributed on the side end wall of the oil saving groove 18, and the oil outlets 13 on the oil outlets 13 in the plurality of layers are in one-to-one correspondence. When the power of the engine is increased, low pressure is formed, oil is atomized under the action of pressure difference and enters the oil saving groove 18 through the pressurizing groove 17, the cross section area of the top of the pressurizing groove 17 is smaller than that of the bottom of the pressurizing groove, the pressure between the oil level and the oil saving groove 18 can be further increased, and the oil can be rapidly atomized and enter the oil saving groove 18.
The two sides of the throttle valve 15 are provided with a plurality of guide blocks 25 fixed on the main air duct 11, and the end surface of the guide block 25 contacted with the throttle valve 15 is in a smooth circular arc shape. The guide block 25 has a guiding function, so that the guide block 25 is prevented from being displaced in a quick movement, unreasonable air inlet amount is caused, the smooth end surface reduces friction, the existing throttle valve 15 is often connected with the oil needle 21 and moves along with the oil needle 21, and therefore the air inlet amount cannot be adjusted by adjusting the throttle valve 15 alone, in the example, the maximum or minimum air inlet amount of the throttle valve 15 can be adjusted alone according to the quality of oil and whether combustion is complete.
The spout switch 14 can rotate 180 degrees at the main air duct 11, and when the spout switch 14 is vertically arranged, two ends of the spout switch 14 are abutted against the end part of the main air duct 11. When the nozzle switch 14 rotates to open the main air duct 11, the mixed gas of air and oil mist enters the engine through the nozzle switch 14 to be combusted to provide energy, the larger the power of the engine is increased, the larger the rotating angle of the nozzle switch 14 is, so that more mixed gas can be provided in a certain time, and when the engine does not work, the nozzle switch 14 does not rotate and vertically closes the main air duct 11.
An oil cavity 19 is arranged at the bottom of the air main duct 11, the oil cavity 19 is communicated with an oil outlet groove 20, the oil needle 21 can move repeatedly along the axial direction of the oil outlet groove 20, and a gap is reserved between the oil outlet 13 and the oil outlet groove 20. The oil outlet groove 20 is not communicated with the main air duct 11, when oil mist enters the main air duct 11 through the oil outlet 13, the residual oil mist can be condensed into oil liquid and flows into the oil cavity 19 from the oil saving groove 18, and can also be condensed in a gap between the oil outlet 13 and the oil outlet groove 20, so that the phenomenon that the air main air duct 11 is insufficiently combusted to cause pollutants due to too much oil mist flowing in is prevented.
When the throttle valve 15 penetrates through the main air duct 11, all the oil outlets 13 are located in the oil outlet groove 20, the nozzle switch 14 is vertically arranged, when the engine is not started, the throttle valve 15 and the nozzle switch 14 are both in a state of closing the main air duct 11, and all the oil outlets 13 do not enter the main air duct 11.
The oil chamber 19 is also communicated with an oil filling groove 22, a float 24 is movably connected in the oil filling groove 22, and the float 24 extends out of the oil filling groove 22 and is connected with the inner end wall of the oil chamber 19 in a rotating fit manner. The float 24 is used for controlling the maximum oil inlet amount in the oil chamber 19, when the oil amount poured into the oil chamber 19 reaches the maximum capacity, the float 24 floats on the oil surface, and the buoyancy provided by the continuous rising of the oil surface promotes the upward movement of the float 24.
The top of the oil filling groove 22 is communicated with an oil stopping groove 23, the top of the float 24 is tapered, and when the float 24 moves upwards along the oil filling groove 22 under the buoyancy of the oil in the oil chamber 19, the float 24 moves towards the direction entering the oil stopping groove 23. The buoyancy provided by the continued rise in the oil surface causes float 24 to move upwardly so that the tapered top of float 24 extends into oil sump 23 and blocks oil sump 23, stopping the continued pouring of oil.
When the top taper of the float 24 completely enters the oil stopping groove 23, the oil outlet 13 at the bottommost layer of the oil needle 21 is higher than the level of the oil surface in the oil chamber 19. The horizontal height of the oil outlet 13 is higher than that of the oil surface, so that a certain pressure difference can be generated during oil supply to facilitate the oil to be rapidly atomized to enter the main air duct 11, and when the oil mist is too much, the oil mist between the height differences can be condensed into oil liquid to flow back and cannot enter the main air duct 11.
The principle of the utility model is that: when the power of the engine is increased, low pressure is formed, oil is atomized under the action of pressure difference and enters the oil saving groove 18 through the pressurizing groove 17, then flows into the main air duct 11 through the oil outlet 13, the oil needle 21 moves upwards along the axial direction of the main air duct 11 according to the power quantity raised by the engine, so that a plurality of oil outlets 13 drive into the main air duct 11, when the oil mist is excessive, the oil saving groove 18 can collect the redundant oil mist and condense the oil mist into oil liquid, the proper oil mist quantity flows into the main air duct 11, pollution caused by insufficient oil mist combustion is prevented, the maximum or minimum air inlet quantity of the throttle valve 15 is independently adjusted according to the quality of the oil and whether the oil is completely combusted, and the pollutant emission is completely reduced as far as possible.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms of the base 10, the main air duct 11, the oil pipe member 12, the oil outlet 13, the spout switch 14, the throttle valve 15, the pressurizing groove 17, the oil saving groove 18, the oil chamber 19, the oil outlet groove 20, the oil needle 21, the oil filling groove 22, the oil stopping groove 23, the float 24, the guide block 25, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (10)
1. A gasoline engine carburetor meeting EPA/CARB emission standards comprises a base (10) and is characterized in that an air main air duct (11) penetrates through the base (10), an oil pipe part (12) is movably connected in the air main air duct (11), the oil pipe part (12) can move repeatedly along the axial direction of the base (10), the oil pipe part (12) comprises a plurality of oil outlets (13), the oil pipe part (12) is provided with a nozzle switch (14) which is rotatably connected with the air main air duct (11), the oil pipe part (12) is provided with a throttle valve (15) which is movably connected with the air main air duct (11) and used for controlling air quantity, and the throttle valve (15) can move repeatedly along the axial direction of the base (10).
2. A gasoline engine carburetor according to claim 1, wherein said fuel pipe member (12) further comprises a fuel needle (21) capable of moving repeatedly along the axial direction of the engine base (10), the bottom of said fuel needle (21) is provided with a pressurizing groove (17), the top of said pressurizing groove (17) is communicated with a fuel saving groove (18), the side end wall of said fuel saving groove (18) is communicated with a plurality of fuel outlets (13) which transversely penetrate through the fuel needle (21).
3. A gasoline engine carburettor meeting EPA/CARB emission standards in accordance with claim 2 wherein the cross sectional area of the top of the booster tank (17) is smaller than the cross sectional area of the bottom of the booster tank (17), the oil outlets (13) are divided into several layers and evenly distributed on the side end walls of the economizer tank (18), and the oil outlets (13) on several layers of oil outlets (13) are in one-to-one correspondence.
4. A gasoline engine carburettor meeting EPA/CARB emission standards in accordance with claim 3 wherein the throttle (15) is provided on both sides with a number of guide blocks (25) fixed to the main air duct (11), the end of the guide blocks (25) in contact with the throttle (15) being in the shape of a smooth circular arc.
5. A gasoline engine carburettor meeting EPA/CARB emission standards in accordance with claim 4 wherein the jet switch (14) is rotatable 180 ° in the main air duct (11) and the two ends of the jet switch (14) abut the ends of the main air duct (11) when the jet switch (14) is in a vertical position.
6. A gasoline engine carburetor according to claim 5 and meeting EPA/CARB emission standards, characterized in that an oil chamber (19) is arranged at the bottom of the main air duct (11), the oil chamber (19) is communicated with an oil outlet groove (20), the oil needle (21) can move repeatedly along the axial direction of the oil outlet groove (20), and a gap is left between the oil outlet (13) and the oil outlet groove (20).
7. A gasoline engine carburettor meeting EPA/CARB emission standards according to claim 6 wherein all the oil outlets (13) are located in the oil outlet tank (20) and the jet switch (14) is vertically positioned when the throttle valve (15) is extended through the main air duct (11).
8. A gasoline engine carburettor meeting EPA/CARB emission standards in accordance with claim 7 wherein the oil chamber (19) is further connected to a refueling tank (22), a float (24) is movably connected to the refueling tank (22), and the float (24) extends out of the refueling tank (22) and is pivotally connected to the inner end wall of the oil chamber (19).
9. A gasoline engine carburettor meeting EPA/CARB emission standards in accordance with claim 8 wherein the top of the refuelling tank (22) is connected to a sump stop (23) and the top of the float (24) is tapered so that when the float (24) moves up the refuelling tank (22) under the buoyancy of the oil in the oil chamber (19) the float (24) moves in the direction of entering the sump stop (23).
10. A gasoline engine carburettor meeting EPA/CARB emission standards according to claim 9 wherein the bottommost oil outlet (13) on the oil needle (21) is above the level of the oil surface in the oil chamber (19) when the top pointed cone of the float (24) is fully inside the oil sump (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920704522.8U CN210289961U (en) | 2019-05-16 | 2019-05-16 | Gasoline engine carburetor meeting EPA/CARB emission standard |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920704522.8U CN210289961U (en) | 2019-05-16 | 2019-05-16 | Gasoline engine carburetor meeting EPA/CARB emission standard |
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| Publication Number | Publication Date |
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| CN210289961U true CN210289961U (en) | 2020-04-10 |
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| CN201920704522.8U Active CN210289961U (en) | 2019-05-16 | 2019-05-16 | Gasoline engine carburetor meeting EPA/CARB emission standard |
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| CN (1) | CN210289961U (en) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Gasoline engine carburetor meeting EPA / carb emission standard Effective date of registration: 20210929 Granted publication date: 20200410 Pledgee: Zhejiang Tailong commercial bank Taizhou branch of Limited by Share Ltd. Pledgor: ZHEJIANG KEMA POWER MACHINERY Co.,Ltd. Registration number: Y2021980010256 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |