CN111622825A - Oil regulator for two-stroke IC engine - Google Patents

Abstract

An oil adjusting device for a two-stroke internal combustion engine, comprising a main body provided with an oil inlet hole and an oil injection hole, the oil inlet hole and the oil injection hole are communicated with each other, the oil injection hole is opened on the bottom surface of the main body, and the oil injection hole comprises an upper part that communicates with each other. The upper hole is in the shape of an inverted truncated cone, and the lower hole is in the shape of a truncated cone. The main body is provided with a drainage cone, and the side surface of the drainage cone is provided with more than one drainage groove. The invention has the following advantages: it can increase the atomization effect of the oil, thereby reducing the cylinder pulling probability and oil consumption of the internal combustion engine, and reducing the oil fume generated during the operation of the internal combustion engine.

Description

A two-stroke internal combustion engine oil regulating device

technical field

The invention relates to the field of two-stroke internal combustion engines, in particular to an oil adjusting device for a two-stroke internal combustion engine.

Background technique

The existing two-stroke internal combustion engine is not equipped with an oil compression pump to lubricate the machine. Before the two-stroke internal combustion engine works, the fuel and oil need to be pre-prepared in proportion. However, due to the error of the measuring tool, the proportion of the mixture is often inaccurate or well-prepared. The phenomenon that the mixed liquid is left for too long and deteriorates, which leads to the poor working condition of the engine and affects the working efficiency.

In order to solve the above problems, an invention named oil compression pump is disclosed in CN102679123A, which includes a base, a pump plate, a gasket and an upper cover, and is characterized in that: a base is provided with an oil inlet pipe, an oil storage hole, a Oil storage hole 2, oil storage groove, movable spring in oil storage groove, oil storage hole 3, oil storage hole 4, oil outlet pipe, among which oil inlet pipe and oil storage hole 1, oil storage hole 2 and oil storage groove , The oil storage groove and the oil storage hole 3, the oil storage hole 4 and the oil outlet pipe are respectively connected through the channel; b The pump plate is placed on the base, and the pump plate has an oil inlet baffle, an oil outlet baffle, an oil inlet baffle, an outlet The oil baffles correspond to the second oil storage hole and the fourth oil storage hole respectively; the c gasket is placed on the top of the pump plate and under the upper cover, and there is an air inlet hole on the cover body of the upper cover.

Although the above-mentioned oil compression pump can realize the independent oil supply of the two-stroke internal combustion engine, and finally the oil coming out of the oil outlet pipe can be mixed with the fuel in proportion, it still has the following shortcomings:

1. Lack of an effective atomization device, the final oil atomization effect from the oil outlet pipe is poor, which makes the two-stroke internal combustion engine have a high probability of pulling the cylinder, large oil loss, and large smoke in the operation of the internal combustion engine. Because the oil and fuel mixture in the two-stroke internal combustion engine will eventually enter the combustion chamber and burn together, and the oil also needs to lubricate the internal combustion engine during the combustion process, and the poor atomization effect of the oil will make the oil in the combustion process. Due to the high physical aggregation state of molecular clusters, insufficient combustion occurs. Oil that cannot be fully burned can neither provide combustion power nor participate in lubrication. Too little oil participating in lubrication will increase the probability of internal combustion engine pulling cylinders; in order to reduce the internal combustion engine The probability of pulling the cylinder can only be ensured by increasing the amount of oil in the oil and fuel mixture to ensure the lubrication of the engine oil to the internal combustion engine, so the oil compression pump has a large amount of oil loss; in addition, the insufficient combustion of the engine oil will also cause the internal combustion engine to run a large smoke.

2. In the end, the oil coming out of the oil outlet pipe is always constant, and the internal combustion engine has a high probability of pulling the cylinder or a large amount of oil waste. The two-stroke internal combustion engine will generate high temperature when used for a long time or under heavy load. The oil loss under high temperature is greater than that under low temperature or normal temperature. The oil coming out of the oil outlet pipe of the oil compression pump is always Constant, if the oil is prepared according to the oil consumption at low temperature or normal temperature, the two-stroke internal combustion engine is prone to cylinder pulling due to insufficient oil lubrication at high temperature; if the oil is prepared according to the oil consumption at high temperature, Then the two-stroke internal combustion engine will waste a lot of unnecessary oil at low temperature or normal temperature.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a two-stroke internal combustion engine oil adjusting device, which can make the oil in the carburetor obtain a better atomization effect, reduce the cylinder pulling probability and oil consumption of the internal combustion engine, and reduce the operation of the internal combustion engine. generated fumes.

The purpose of the present invention is to achieve this, a two-stroke internal combustion engine oil adjusting device, including a main body with an oil inlet hole and an oil injection hole, the oil inlet hole and the oil injection hole are communicated with each other, and the oil injection hole is opened on the bottom surface of the main body. The fuel injection hole includes an upper hole and a lower hole that communicate with each other, the upper hole is in the shape of an inverted truncated cone, and the lower hole is in the shape of a truncated cone.

In the present invention, the working principle is as follows: the oil enters the main body from the oil inlet hole, then is accelerated through the drainage groove and the upper hole of the inverted truncated cone shape, and then sprayed out from the lower hole of the truncated cone shape, and finally achieves the effect of atomization, thereby reducing the internal combustion engine. The probability of pulling the cylinder, the amount of oil loss, and reducing the oil fume generated during the operation of the internal combustion engine, the function of setting the drainage groove on the drainage cone is to accelerate the oil to fall along the drainage groove to obtain a better atomization effect of the oil.

Due to the adoption of the above technical solution, the present invention has the following advantages: it can obtain better atomization effect of the oil, reduce the cylinder pulling probability and oil consumption of the internal combustion engine, and reduce the oil fume generated during the operation of the internal combustion engine.

Description of drawings

The accompanying drawings of the present invention are described below.

FIG. 1 is a schematic cross-sectional view of a two-stroke internal combustion engine oil adjusting device according to the present invention.

Fig. 2 is another schematic cross-sectional view of a two-stroke internal combustion engine oil regulating device of the present invention.

FIG. 3 is a schematic perspective view of a two-stroke internal combustion engine oil adjusting device according to the present invention.

Fig. 4 is a three-dimensional schematic diagram of the drainage cone and the rod body of the present invention.

5 is a schematic cross-sectional view of the main body, the drainage cone and the rod body in the present invention.

Fig. 6 is a three-dimensional schematic diagram of the drainage cone, the rod body, the limit frame, the upper spring and the lower spring according to the present invention.

FIG. 7 is a schematic diagram of installation of a two-stroke internal combustion engine oil adjusting device of the present invention.

FIG. 8 is another installation schematic diagram of a two-stroke internal combustion engine oil regulating device of the present invention.

Fig. 9 is another perspective schematic diagram of a two-stroke internal combustion engine oil regulating device of the present invention.

10 is a schematic diagram of another drain cone of a two-stroke internal combustion engine oil regulating device of the present invention.

11 is a schematic cross-sectional view of another main body, a drain cone and a rod body of a two-stroke internal combustion engine oil regulating device of the present invention.

In the figure: 1. Oil inlet hole; 2. Oil injection hole; 3. Main body; 4. Upper hole; 5. Lower hole; 6. Oil seal; 7. Drainage cone; 8. Cylinder; 9. Cone; 10. Drainage groove; 11. Carburetor; 12. Limit hole; 13. Limit frame; 15. Adjustment screw; 16. Rod body; 17. Upper spring; 18. Lower spring; 19. U-shaped hole; 20. Limit 21. Connecting pipe; 22. Temperature absorber; 23. Expansion bag; 24. Limit plate; 25. Limit bracket; 26. Pressure regulating valve; 27. Orifice; 28. Seal ring; 29. Seal groove.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and embodiments.

In the present invention, directional words such as "front", "rear", "upper", "lower", "left" and "right" are described according to FIG. 1 in the accompanying drawings, which are not completely actual. Orientation in the application.

As shown in Figures 1 to 11, a two-stroke internal combustion engine oil adjusting device includes a main body 3 with an oil inlet hole 1 and an oil injection hole 2, and the oil inlet hole 1 and the oil injection hole 2 are communicated with each other, and the oil is injected The hole 2 is opened on the bottom surface of the main body 3, and the fuel injection hole 2 includes an upper hole 4 and a lower hole 5 that communicate with each other. The upper hole 4 is in the shape of an inverted truncated cone, and the lower hole 5 is in the shape of a truncated cone. More than one drainage groove 10 is opened on the side surface of 7.

In the present invention, the working principle is as follows: the oil enters the main body 3 from the oil inlet hole 1, and then is accelerated through the drainage groove 10 and the upper hole 4 of the inverted truncated cone shape, and then sprayed out from the lower hole 5 of the truncated cone shape, and finally achieves the effect of atomization. , so as to reduce the probability of pulling the cylinder of the internal combustion engine, the amount of oil loss, and reduce the oil fume generated during the operation of the internal combustion engine. The function of setting the drainage groove 10 on the drainage cone 7 is to accelerate the oil to fall along the drainage groove 10, so that the oil can obtain better mist effect.

Since the upper hole 44 has an inverted frustum-shaped hole, the upper hole 44 can squeeze and accelerate the oil flowing into the lower hole 55, and the accelerated oil is sprayed along the frustum-shaped lower hole 55, so that the oil flows out of the lower hole 55. The oil can be in an atomized state.

The main body 33 can be a cylindrical structure, or other structures of other shapes; it can also be directly an oil pipe on the carburetor 11 where the oil is discharged, such as the oil discharge pipe disclosed in the background art CN102679123A. Further, the drainage groove 10 is inclined or vertically arranged on the side surface of the drainage cone 7 . The inclined arrangement of the drainage groove 10 can make the oil rotate and flow down along the drainage groove 10, increase the pressure when the oil is sprayed from the lower hole 5, and make the atomization effect of the oil when sprayed out is better than that achieved by the vertical arrangement of the drainage groove 10. . In this embodiment, the drainage cone 7 includes a cylinder 8 and a cone 9 arranged in sequence from top to bottom. The cylinder 8 and the cone 9 are integrally formed, and the cone 9 is smaller than or equal to the upper hole 4 .

Further, as a preferred solution, it also includes a limit hole 12 opened in the carburetor 11, and a limit frame 13 is arranged in the limit hole 12; the drainage cone 7 is movably arranged in the main body 3, and the oil inlet hole 1 is opened in the main body. 3 side, the top surface of the main body 3 is provided with a through hole, the drainage cone 7 is provided with a rod body 16 which passes through the through hole and is fixed on the carburetor 11 by the adjusting screw 15, and the limit frame 13 is fixed on the rod body 16; In the position hole 12 , a lower spring 18 sleeved on the rod body 16 is set below the limit frame 13 ; Tightening or loosening the adjusting screw 15 can move the drainage cone 7 downward or upward, and the upward movement of the drainage cone 7 can widen the distance between the drainage cone 7 and the injection hole 2, thereby increasing the oil passage through which the oil passes. And increase the oil supply of the oil; the drain cone 7 moves down, which can shorten the distance between the drain cone 7 and the injection hole 2, thereby reducing the oil passage of the oil and reducing the oil supply of the oil. Therefore, under different temperatures, the two-stroke internal combustion engine can reduce or increase the supply of oil by tightening or loosening the adjusting screw 15, so as to avoid a large amount of oil waste or the internal combustion engine pulling the cylinder.

Further, as a preferred solution, an oil seal 6 is provided on the through hole. The function of the oil seal 6 is to prevent the oil from flowing out of the through hole while increasing the air tightness of the main body 3 , so that the oil can flow out of the oil injection hole 2 better.

In another embodiment, the drainage cone 7 is movably arranged in the main body 3, the top surface of the main body 3 is provided with a through hole, the drainage cone 7 is provided with a rod body 16 whose top is a screw, and the rod body 16 passes through the through hole and is fixed on the screw rod. carburetor 11. The position of the drainage cone 7 in the main body 3 can be adjusted by the screw; under different temperatures of the two-stroke internal combustion engine, the supply of oil can be reduced or increased by twisting the screw, so as to avoid a large amount of oil waste or the situation that the internal combustion engine pulls the cylinder . In other embodiments, the rod body 16 and the drainage cone 7 can also be moved up or down by other adjustment devices.

Further, in order to fix the limit frame 13 and the rod body 16, in this embodiment, the limit frame 13 is provided with a U-shaped hole 19, the rod body 16 is provided with a limit slot 20, and the rod body 16 is arranged in the U-shaped hole 19. And fixed by the limit slot 20 . The fixing method is simple in structure, convenient in installation and low in production cost.

Further, as a preferred solution, it also includes a connecting pipe 21 and a temperature absorber 22 with a cavity inside, and the limit frame 13 includes a limit plate 24 and a limit bracket 25 fixed under the limit plate 24; In the hole 12 , an inflation bag 23 is further disposed below the limiting plate 24 , and the inflation bag 23 communicates with the cavity of the temperature absorber 22 through the connecting pipe 21 . In this embodiment, the temperature absorber 22 and the connecting pipe 21 are both non-stretchable materials, and the inflation bladder 23 is a stretchable material that can expand with air or liquid. The temperature absorber 22 is arranged on the two-stroke internal combustion engine. When the temperature of the two-stroke internal combustion engine increases, the medium in the temperature absorber 22 expands, and the expansion bag 23 expands with the expansion of the medium. Move, thereby driving the drainage cone 7 to move up, and the drainage cone 7 moves up, which can widen the distance between the drainage cone 7 and the injection hole 2, thereby increasing the oil passage through which the oil passes and increasing the oil supply of the oil; the temperature absorber 22 is arranged on the two-stroke internal combustion engine. When the temperature of the two-stroke internal combustion engine decreases, the medium in the temperature absorber 22 shrinks, and the expansion bag 23 compresses with the compression of the medium. Thereby, the drainage cone 7 is driven to move down, and the drainage cone 7 moves down, which can shorten the distance between the drainage cone 7 and the injection hole 2, so that the oil passage through which the oil passes is reduced and the oil supply amount of the oil is reduced. The function of setting the limit bracket 25 is to ensure the maximum oil intake and the minimum oil intake of the oil. The medium in the cavity of the inflation bladder 23 , the connecting pipe 21 and the temperature absorber 22 may be air, or may be a liquid with the same function of thermal expansion and contraction. In this embodiment, the limiting plate 24 is a horizontal plate, and the limiting brackets 25 are two vertical brackets fixed under the limiting plate 24 . In other embodiments, the limiting plate 24 may also be in other shapes, and the limiting brackets 25 may also be brackets with other shapes and numbers.

Further, as a preferred solution, the temperature absorber 22 is provided with a pressure regulating valve 26 . The function of the pressure regulating valve 26 is to ensure that the pressure in the cavity of the temperature absorber 22 is consistent with the external pressure under the normal temperature state, so as to avoid the expansion of the expansion bag 23 or the expansion of the temperature absorber 22 under the normal temperature state of the high altitude area. crack. In this embodiment, the pressure regulating valve 26 is a regulating valve that can be taken out from the temperature absorber 22 and installed. The pressure in the cavity of the temperature absorber 22 can be adjusted to the external pressure by removing the regulating valve and then installing the regulating valve. Environmental pressures are guaranteed to be consistent. In other embodiments, the pressure regulating valve 26 may also be other regulating valves that can regulate the cavity pressure.

Further, as a preferred solution, the bottom end of the upper hole 4 in the fuel injection hole 2 is the top end of the lower hole 5, and the diameter of the bottom end of the upper hole 4 is 0.3mm-1.0mm. The size of the upper hole 4 and the lower hole 5 in the fuel injection hole 2 can be adjusted according to the needs of atomization and the amount of oil.

Further, as a preferred solution, the upper hole 4 and the lower hole 5 are respectively 20°-170° chamfers opened at the bottom of the main body 3 . The size of the chamfers of the upper hole 4 and the lower hole 5 can be adjusted according to the requirements of oil atomization. The upper hole 4 and the lower hole 5 are chamfered at the bottom of the main body 3 respectively, which is beneficial to reduce the processing cost and the processing difficulty.

Further, as a preferred solution, the upper hole 4 and the lower hole 5 are chamfered angles of 60°-120° respectively opened at the bottom of the main body 3 . The chamfer angle of 60°-120° is beneficial to meet the different requirements of different internal combustion engines for oil atomization.

Further, as shown in FIG. 9 to FIG. 11 , the inside of the drainage cone 7 is also provided with a drainage hole 27 communicating with the drainage groove 10 ; The function of the diversion hole 27 is to make the oil enter the drainage groove 10 from the inside of the drainage cone 7, and then enter the injection hole 2 through the drainage groove 10; of sealing. As shown in Embodiment 1, as shown in FIGS. 10 and 11 , the drainage cone 7 is provided with a sealing groove 29, and the sealing ring 28 is arranged in the sealing groove 29; in Embodiment 2, the sealing ring 28 is directly placed in the drainage Between the cone 7 and the main body 3; in Embodiment 3, the main body 3 is provided with a sealing groove, and the sealing ring 28 is arranged in the sealing groove.

Claims (13)

1. A two-stroke internal combustion engine oil regulating device, characterized in that it comprises a main body (3) provided with an oil inlet hole (1) and an oil injection hole (2), an oil inlet hole (1) and an oil injection hole (2) The fuel injection holes (2) are opened on the bottom surface of the main body (3), and the fuel injection holes (2) include an upper hole (4) and a lower hole (5) that are communicated with each other, and the upper hole (4) is in the shape of an inverted truncated cone. The lower hole (5) is in the shape of a truncated cone, the main body (3) is provided with a drainage cone (7), and the side surface of the drainage cone (7) is provided with more than one drainage groove (10). 2 . The oil adjusting device for a two-stroke internal combustion engine according to claim 1 , wherein the drainage groove ( 10 ) is inclined/vertically arranged on the side surface of the drainage cone ( 7 ). 3 . 3. The oil regulating device for a two-stroke internal combustion engine according to claim 1 or 2, characterized in that it further comprises a limit hole (12) opened in the carburetor (11), and a limit hole (12) is provided in the limit hole (12). The position frame (13); the drainage cone (7) is movably arranged in the main body (3), the oil inlet hole (1) is opened on the side of the main body (3), and the top surface of the main body (3) is provided with a through hole (14), the drainage cone (7) is provided with a rod body (16) which passes through the through hole (14) and is fixed on the carburetor (11) by adjusting screws (15), and the limiter (13) is fixed on the rod body (16); In the limit hole (12), a lower spring (18) sleeved on the rod body (16) is arranged below the limit frame (13); Adjust upper spring (17) in screw (15). 4 . The oil adjusting device for a two-stroke internal combustion engine according to claim 3 , wherein an oil seal ( 6 ) is arranged on the through hole ( 14 ). 5 . 5. The oil regulating device for a two-stroke internal combustion engine according to claim 1 or 2, characterized in that the drainage cone (7) is movably arranged in the main body (3), and the top surface of the main body (3) is provided with a through hole (14), The drain cone (7) is provided with a rod body (16) whose top is a screw rod, and the rod body (16) passes through the through hole (14) and is fixed to the carburetor (11) by the screw rod. 6. The oil regulating device for a two-stroke internal combustion engine according to claim 1, 2 or 4, characterized in that it further comprises a connecting pipe (21) and a temperature absorber (22) with a cavity inside, a limit frame (13) ) includes a limit plate (24) and a limit bracket (25) fixed under the limit plate (24); in the limit hole (12), an expansion bag (23) is also provided below the limit plate (24) , the inflation bag (23) is communicated with the cavity of the temperature absorber (22) through the connecting pipe (21). 7 . The oil regulating device for a two-stroke internal combustion engine according to claim 3 , further comprising a connecting pipe ( 21 ) and a temperature absorber ( 22 ) with a cavity inside, and the limit frame ( 13 ) includes a limit A plate (24) and a limit bracket (25) fixed under the limit plate (24); in the limit hole (12), an inflation bag (23) is further provided below the limit plate (24), and the inflation bag ( 23) Connect with the cavity of the temperature absorber (22) through the connecting pipe (21). 8 . The oil regulating device for a two-stroke internal combustion engine according to claim 5 , further comprising a connecting pipe ( 21 ) and a temperature absorber ( 22 ) with a cavity inside, and the limit frame ( 13 ) includes a limit A plate (24) and a limit bracket (25) fixed under the limit plate (24); in the limit hole (12), an inflation bag (23) is further provided below the limit plate (24), and the inflation bag ( 23) Connect with the cavity of the temperature absorber (22) through the connecting pipe (21). 9 . The oil regulating device for a two-stroke internal combustion engine according to claim 6 , wherein a pressure regulating valve ( 26 ) is provided on the temperature absorber ( 22 ). 10 . 10. The oil regulating device for a two-stroke internal combustion engine according to claim 7 or 8, characterized in that: a pressure regulating valve (26) is provided on the temperature absorber (22). 11. The oil regulating device for a two-stroke internal combustion engine according to claim 1, 2, 4, 7, 8 or 9, wherein the bottom end of the upper hole (4) in the fuel injection hole (2) is the lower hole (5). ) at the top, the aperture at the bottom of the upper hole (4) is 0.3mm-1.0mm. 12. The oil adjusting device for a two-stroke internal combustion engine according to claim 1, 2, 4, 7, 8 or 9, wherein the upper hole (4) and the lower hole (5) are respectively opened at the bottom of the main body (3) 20°-170° chamfer. 13. The oil regulating device for a two-stroke internal combustion engine according to claim 1 or 2, characterized in that: the inside of the drainage cone (7) is further provided with a drainage hole (27) communicating with the drainage groove (10); 10) Above, a sealing ring (28) is arranged between the drainage cone (7) and the main body (3).

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