Injection device of layered internal combustion engine

Abstract

The utility model belongs to the technical field of internal combustion engines, and particularly relates to a spraying device of a layered internal combustion engine, which comprises a machine body, an oil inlet pipe is arranged on one side of the machine body, the oil inlet pipe is communicated with an oil spraying bin, a supporting plate is arranged in the oil spraying bin, a through hole is formed in the center of the supporting plate, and a sliding block is arranged in the through hole in the center of the supporting plate. An ejector pin is welded at the bottom of the sliding block; a telescopic rod is arranged at the top of the supporting plate, a spring is arranged outside the telescopic rod, and one end of the spring is connected with the limiting plate in a welded mode. The cooling box is additionally arranged on one side of the machine body, heat around the nozzle can be taken away through circulating flow of cooling liquid, so that the temperature of the nozzle part is reduced, and the problems that oil precipitation is generated and the spraying efficiency is influenced due to the fact that the temperature of the nozzle is increased are solved; and through the operation of additionally arranging the filtering tank at the oil inlet, the oil is purified in a manner of filtering the oil by the filtering tank, so that the problem of spraying blockage caused by nozzle blockage due to unclean oil is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of internal combustion engines, in particular to an injection device of a stratified internal combustion engine. Background Art

[0002] A stratified internal combustion engine is an internal combustion engine that uses stratified combustion technology. It achieves a more efficient combustion process by forming a mixture of different concentrations in the cylinder; the stratified internal combustion engine improves combustion efficiency and power performance by precisely controlling the formation and combustion process of the mixture, while reducing fuel consumption and emissions; the benefits of stratified combustion are high thermal efficiency and low throttling loss, which can convert limited fuel into working energy as much as possible; the injection device is a crucial device in a stratified internal combustion engine.

[0003] The injection device of a stratified internal combustion engine usually consists of a fuel injector, a high-pressure fuel pump, a fuel pipe, etc. The design and layout of the fuel injector play an important role in the formation of the mixture and the combustion process; in the stratified combustion mode, the injection device needs to accurately inject the fuel into a specific area in the cylinder to form a mixture with different concentration levels; this is usually achieved through multiple injections or special fuel injector designs; the injection device also needs to work closely with the engine control system to achieve precise control of the injection time, injection pressure and injection amount.

[0004] The existing stratified internal combustion engine injection device has shortcomings in dealing with nozzle clogging. When used for a long time, carbon accumulation and oil clogging will occur at the nozzle, which will result in the nozzle being unable to accurately and quantitatively inject fuel during the injection operation, thereby causing insufficient combustion of the internal combustion engine; and when the injection head of the existing injection device is used for a long time, the temperature of the injection head will increase, which will accelerate the nozzle clogging and affect the use of the internal combustion engine. Therefore, in view of the above problems, an injection device for a stratified internal combustion engine is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and address the problems existing in the prior art equipment, the utility model proposes an injection device for a stratified internal combustion engine.

[0006] The technical solution adopted by the utility model to solve its technical problems is an injection device of a stratified internal combustion engine, comprising a fuselage, an oil inlet pipe is opened on one side of the fuselage, the oil inlet pipe is connected to an oil injection tank, a support plate is arranged inside the oil injection tank, a through hole is opened in the center of the support plate, a sliding block is arranged inside the through hole in the center of the support plate, and a ejector pin is welded at the bottom of the sliding block; a telescopic rod is arranged on the top of the support plate, a spring is arranged outside the telescopic rod, and one end of the spring is welded and connected to a limit plate; an isolation plate is arranged on the top of the support plate; a cooling ring is welded on the bottom end of the fuselage, an air chamber is arranged at the bottom of the cooling ring, a nozzle is opened in the center of the air chamber, and an ejector pin is inserted inside the nozzle; an oil inlet pipe is arranged on the top side of the fuselage, a filter tank is arranged on the top of the oil inlet pipe, a filter tank is arranged inside the filter tank, a magnetic suction block is arranged inside the filter tank, the top of the magnetic suction block is connected to activated carbon, and the top of the activated carbon is connected to the oil inlet; the injection device is filtered by this structure.

[0007] Preferably, one end of the cooling ring is connected to a water inlet pipe, and the other end of the water inlet pipe is connected to a cooling box. A heat conducting plate is provided inside the cooling box, and a heat conducting pipe is provided on the top of the heat conducting plate. The other end of the heat conducting pipe is connected to a heat sink, and the top of the heat sink is connected to a water outlet pipe. Two groups of heat sinks are provided on both sides of the outside of the cooling box, and the heat sinks are used to dissipate heat from the unit outside the cooling box. The injection device is cooled by this structure.

[0008] Preferably, a cooling bin is provided inside the cooling box, a water pump is provided on the top of the cooling bin, the output end of the water pump is connected to a water outlet pipe, and the output end of the water outlet pipe is connected to a cooling ring; a baffle is provided between the oil injection bin and the air chamber, a hole is provided at the center of the baffle, and the diameter of the hole at the center of the baffle is consistent with the diameter of the ejector pin; the center diameter of the support plate is consistent with the outer diameter of the slider, and the two are relatively sealed; this structure increases the sealing and stability of the device.

[0009] The utility model is beneficial in that:

[0010] The utility model provides a cooling box on one side of the fuselage, so that the heat around the nozzle can be taken away by the circulation of coolant, thereby reducing the temperature of the nozzle, thereby avoiding the problem of oil precipitation caused by the increase of nozzle temperature and affecting the injection efficiency; and by adding a filter tank at the oil inlet, the oil can be filtered by the filter tank to purify the oil, thereby preventing the problem of nozzle clogging and injection obstruction caused by unclean oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a schematic diagram of the overall structure of the device;

[0013] Figure 2 It is a schematic diagram of the internal structure of the cooling box;

[0014] Figure 3 This is a schematic diagram of the internal structure of the filter tank;

[0015] Figure 4 Schematic diagram of the internal structure of the injection head;

[0016] Figure 5 It is a schematic diagram of the top rod structure;

[0017] In the figure: 1. fuselage; 2. cooling box; 3. heat sink; 5. water inlet pipe; 6. ejector pin; 7. cooling ring; 8. oil inlet pipe; 9. filter tank; 10. oil inlet; 11. water outlet pipe; 12. cooling chamber; 13. water pump; 14. cooling fan; 15. heat sink; 16. heat pipe; 17. heat sink; 18. activated carbon; 19. magnetic block; 20. filter chamber; 21. isolation plate; 22. fuel injection chamber; 23. support plate; 24. slider; 25. baffle; 26. air chamber; 27. nozzle; 28. limit plate; 29. ​​spring; 30. telescopic rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-5As shown, an injection device of a stratified internal combustion engine comprises a fuselage 1, an oil inlet pipe 8 is opened on one side of the fuselage 1, the oil inlet pipe 8 is connected to the oil injection tank 22, a support plate 23 is arranged inside the oil injection tank 22, a through hole is opened in the center of the support plate 23, a slider 24 is arranged inside the through hole in the center of the support plate 23, and a ejector pin 6 is welded to the bottom of the slider 24; a telescopic rod 30 is arranged on the top of the support plate 23, a spring 29 is arranged on the outside of the telescopic rod 30, and one end of the spring 29 is welded to the limit plate 28; the top of the support plate 23 is provided with a telescopic rod 30, and a spring 29 is arranged on the outside of the telescopic rod 30, and one end of the spring 29 is welded to the limit plate 28; An isolation plate 21 is provided at the end; a cooling ring 7 is welded at the bottom end of the fuselage 1, an air chamber 26 is provided at the bottom of the cooling ring 7, a nozzle 27 is opened at the center of the air chamber 26, and a ejector 6 is inserted inside the nozzle 27; an oil inlet pipe 8 is provided on the top side of the fuselage 1, a filter tank 9 is provided at the top end of the oil inlet pipe 8, a filter tank 20 is provided inside the filter tank 9, a magnetic block 19 is provided inside the filter tank 20, the top end of the magnetic block 19 is connected to the activated carbon 18, and the top end of the activated carbon 18 is connected to the oil inlet 10; the fuel injection tank 22 is connected to the air chamber 26 A baffle 25 is provided between the two sides of the filter 24, and a hole is formed in the center of the baffle 25. The diameter of the hole in the center of the baffle 25 is consistent with the diameter of the ejector pin 6; the diameter of the center of the support plate 23 is consistent with the outer diameter of the slider 24, and the two are relatively sealed; when filtering the injection device, the operator pours the fuel from the inside of the fuel inlet 10 into the filter tank 9. At this time, the fuel flows from the fuel inlet 10 into the inside of the activated carbon 18, and the activated carbon absorbs the impurities in the fuel, thereby performing a filtering operation. After that, after passing through the magnetic suction block 19, the magnetic suction block 19 absorbs the impurities in the fuel. Metal substances inside the oil; finally, the fuel will flow into the fuel injection tank 22 along the oil inlet pipe 8 at the bottom of the filter tank 20 and flow downward along the gap between the support plate 23 and the fuselage 1. When the fuel fills the fuel injection tank 22, the slider 24 will be pushed up by the fuel under the influence of pressure. At this time, the spring 29 located inside the isolation plate 21 begins to retract along the telescopic rod 30, and drives the ejector pin 6 to move upward as the slider 24 is lifted. When there is a gap between the ejector pin and the baffle 25, the fuel will enter the air chamber 26 and spray out through the nozzle 27.

[0020] One end of the cooling ring 7 is connected to the water inlet pipe 5, and the other end of the water inlet pipe 5 is connected to the cooling box 2. A heat conducting sheet 17 is provided inside the cooling box 2, and a heat conducting pipe 16 is provided at the top of the heat conducting sheet 17. The other end of the heat conducting pipe 16 is connected to a heat sink 15, and the top of the heat sink 15 is connected to a water outlet pipe 11; two groups of heat sinks 3 are provided on both sides of the outside of the cooling box 2, and the heat sinks 3 are used to dissipate heat from the external unit of the cooling box 2; a cooling bin 12 is provided inside the cooling box 2, and a water pump 13 is provided at the top of the cooling bin 12, and the output end of the water pump 13 is connected to the water outlet pipe 11 The output end of the water outlet pipe 11 is connected to the cooling ring 7; when the device is cooled, the operator starts the water pump 13, and the water pump 13 will pump the coolant out of the water outlet pipe 11 and discharge it into the cooling bin 12. When the coolant in the cooling bin 12 reaches a certain height, the heat conducting sheet 17 will absorb the heat of the coolant and conduct it to the heat conducting pipe 16, and finally the heat of the coolant will be transferred to the cooling fan 14 through the heat sink 15, and finally the heat will be discharged by the cooling fan 14; finally, the cooled coolant will be discharged from the water inlet pipe 5 at the bottom and flow into the cooling ring 7.

[0021] Working principle: when filtering the injection device, the operator pours the fuel from the fuel inlet 10 into the filter tank 9. At this time, the fuel flows from the fuel inlet 10 into the activated carbon 18, where the activated carbon absorbs the impurities in the fuel and performs a filtration. After that, the fuel passes through the magnetic block 19, where the magnetic block 19 absorbs the metal substances in the fuel. Finally, the fuel flows into the fuel injection tank 22 along the fuel inlet pipe 8 at the bottom of the filter tank 20 and flows downward along the gap between the support plate 23 and the fuselage 1. When the fuel fills the fuel injection tank 22, the slider 24 will be pushed up by the fuel due to the pressure. At this time, the spring 29 located inside the isolation plate 21 begins to retract along the telescopic rod 30 and As the slider 24 is lifted, the ejector pin 6 is driven upward. When there is a gap between the ejector pin and the baffle 25, the fuel will enter the air chamber 26 and be sprayed out through the nozzle 27. When the device is cooled, the operator starts the water pump 13. At this time, the water pump 13 will pump the coolant out from the water outlet pipe 11 and discharge it into the cooling bin 12. When the coolant in the cooling bin 12 reaches a certain height, the heat conducting sheet 17 will absorb the heat of the coolant and conduct it to the heat conducting pipe 16. Finally, the heat of the coolant will be transferred to the cooling fan 14 through the heat sink 15. Finally, the cooling fan 14 will discharge the heat. Finally, the cooled coolant will be discharged from the water inlet pipe 5 at the bottom and flow into the cooling ring 7.

[0022] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0023] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An injection device for a stratified internal combustion engine, characterized in that: The invention comprises a fuselage (1), wherein one side of the fuselage (1) is provided with an oil inlet pipe (8), wherein the oil inlet pipe (8) is connected to an oil spraying tank (22), wherein a support plate (23) is provided inside the oil spraying tank (22), wherein a through hole is provided at the center of the support plate (23), wherein a slider (24) is provided inside the central through hole of the support plate (23), wherein a top pin (6) is welded to the bottom of the slider (24); wherein a telescopic rod (30) is provided at the top of the support plate (23), wherein a spring (29) is provided outside the telescopic rod (30), wherein one end of the spring (29) is welded to a limit plate (28); wherein a partition is provided at the top of the support plate (23); The fuel tank (21) is separated from the fuel tank by a plate (21); a cooling ring (7) is welded at the bottom of the fuselage (1); an air chamber (26) is provided at the bottom of the cooling ring (7); a nozzle (27) is opened at the center of the air chamber (26); a pin (6) is inserted into the nozzle (27); an oil inlet pipe (8) is provided at the top side of the fuselage (1); a filter tank (9) is provided at the top of the oil inlet pipe (8); a filter chamber (20) is provided inside the filter tank (9); a magnetic block (19) is provided inside the filter chamber (20); the top of the magnetic block (19) is connected to activated carbon (18); the top of the activated carbon (18) is connected to the oil inlet (10).

2. The injection device of a stratified internal combustion engine according to claim 1, characterized in that: One end of the cooling ring (7) is connected to a water inlet pipe (5), and the other end of the water inlet pipe (5) is connected to a cooling box (2). A heat conducting plate (17) is provided inside the cooling box (2), and a heat conducting pipe (16) is provided at the top of the heat conducting plate (17). The other end of the heat conducting pipe (16) is connected to a heat sink (15), and the top of the heat sink (15) is connected to a water outlet pipe (11).

3. The injection device of a stratified internal combustion engine according to claim 2, characterized in that: Two groups of heat sinks (3) are provided on both sides of the outside of the cooling box (2), and the heat sinks (3) are used to dissipate heat for the external unit of the cooling box (2).

4. The injection device of a stratified internal combustion engine according to claim 2, characterized in that: A cooling chamber (12) is provided inside the cooling box (2), a water pump (13) is provided at the top of the cooling chamber (12), the output end of the water pump (13) is connected to a water outlet pipe (11), and the output end of the water outlet pipe (11) is connected to a cooling ring (7).

5. The injection device of a stratified internal combustion engine according to claim 1, characterized in that: A baffle (25) is provided between the oil spraying bin (22) and the air chamber (26), and a hole is formed in the center of the baffle (25). The diameter of the hole in the center of the baffle (25) is consistent with the diameter of the ejector pin (6).

6. The injection device of a stratified internal combustion engine according to claim 1, characterized in that: The central diameter of the support plate (23) is consistent with the external diameter of the slider (24), and the two are relatively sealed.

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