Fuel injection mechanism of engine

Abstract

The utility model relates to the technical field of engine fuel injection, in particular to an engine fuel injection mechanism. According to the technical scheme, the device comprises a conical pipe, a rotating pipe and a fixed hollow pipe, a rotating hole is formed in the lower surface of the fixed hollow pipe, the rotating pipe penetrates through the rotating hole, the conical pipe and a rotating ring are fixedly installed at the two ends of the rotating pipe respectively, and a fixed ring is fixedly installed at the position, above the rotating ring, of the inner wall of the fixed hollow pipe; oil spraying holes are symmetrically formed in the two sides of the outer surface of the conical pipe, a plurality of impeller blades are fixedly installed on the inner wall of the rotating pipe in an annular array at equal intervals, an oil inlet hole is formed in one side of the outer surface of the fixed hollow pipe, and a lifting valve rod is arranged in the fixed hollow pipe. By means of the mode, atomized oil can be rotationally jetted into the combustion chamber of the engine, the atomized oil and air are fully and evenly mixed, the atomized oil is fully combusted, the performance of the engine is improved, oil consumption is reduced, and tail gas pollution is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of engine fuel injection, in particular to an engine fuel injection mechanism. Background Art

[0002] The automobile engine is a device that provides power for the automobile. It is the heart of the automobile and determines the automobile's power, economy, stability and environmental protection. Common gasoline engines and diesel engines are both reciprocating piston internal combustion engines, which convert the chemical energy of fuel into mechanical energy of piston movement and output power to the outside. Gasoline engines have high speed, small mass, low noise, easy starting and low manufacturing cost; diesel engines have a large compression ratio, high thermal efficiency, better economic performance and emission performance than gasoline engines. The automobile engine fuel injection system is mainly composed of a fuel tank, a fuel pump, a fuel filter, a fuel supply rack (fuel distributor, fuel rail), a pulsator (fuel pulsation damper), a fuel injector, an oil pressure regulator, a fuel vapor recovery device (EVAP), etc.

[0003] At present, when the fuel injector nozzle in the engine sprays atomized oil, the spray direction is fixed, and the atomized oil cannot be quickly and evenly distributed inside the combustion chamber of the engine, and the atomized oil cannot be quickly and evenly mixed with the combustion air, resulting in incomplete combustion of the atomized oil, leading to problems such as reduced engine performance, insufficient power, increased fuel consumption and exhaust pollution. For this reason, we propose an engine fuel injection mechanism. Utility Model Content

[0004] The utility model aims to provide an engine fuel injection mechanism, which can rotate and spray atomized oil into the interior of the engine combustion chamber, so that the atomized oil and air are fully mixed and evenly mixed, and the atomized oil is fully burned, thereby improving the performance of the engine and reducing fuel consumption, and also reducing the advantages of exhaust gas pollution. It solves the problem that the fuel injector that plays the role of fuel injection in the current engine has a fixed spray direction when spraying atomized oil, and the atomized oil cannot be quickly and evenly distributed in the combustion chamber of the engine, and the atomized oil cannot be quickly and evenly mixed with the combustion air, resulting in incomplete combustion of the atomized oil, leading to reduced engine performance, insufficient power, increased fuel consumption and exhaust gas pollution.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an engine fuel injection mechanism, comprising a conical tube, a rotating tube and a fixed hollow tube, a rotating hole is provided on the lower surface of the fixed hollow tube, and the rotating tube passes through the rotating hole, a conical tube and a rotating ring are fixedly installed at both ends of the rotating tube, a fixed ring is fixedly installed on the inner wall of the fixed hollow tube at a position above the rotating ring, oil injection holes are symmetrically arranged at positions on both sides of the outer surface of the conical tube, a plurality of impeller blades are fixedly installed at equal distances in a circular array on the inner wall of the rotating tube, an oil inlet hole is provided on one side of the outer surface of the fixed hollow tube, a lifting valve stem is provided in the fixed hollow tube, a conical sealing block and an armature are fixedly connected at both ends of the lifting valve stem, and an electromagnet is fixedly installed on the top of the inner wall of the fixed hollow tube.

[0006] Preferably, a wiring hole is provided on the upper surface of the fixed hollow tube, a rubber ring is fixedly installed inside the wiring hole, the electromagnet is electrically connected to a control wire, and the control wire passes through the rubber ring, the control wire used for electromagnet control passes through the wiring hole, and the rubber ring prevents the control wire from breaking due to wear at the wiring hole.

[0007] Preferably, a thread is provided on the outer surface of the fixed hollow tube near the lower surface, and a hexagonal ring is fixedly installed on the outer surface of the fixed hollow tube above the thread. The thread is used to fix the hollow tube, and the setting of the hexagonal ring facilitates the use of a wrench to rotate the fixed hollow tube.

[0008] Preferably, a fixed partition is fixedly installed on the inner wall of the fixed hollow tube at a position below the electromagnet, a coil spring is fixedly connected to the lower surface of the fixed partition, a lifting slide is fixedly connected to the end of the coil spring, and the lifting slide is fixedly sleeved on the outer surface of the lifting valve stem. After the electromagnet loses power, the elastic action of the coil spring causes the lifting slide and the lifting valve stem to descend, and the oil injection hole is blocked and sealed by the conical sealing block.

[0009] Preferably, a conical ring is fixedly installed on the upper surface of the conical sealing block. When the lifting valve stem drives the conical sealing block to rise, the pressure of the high-pressure oil inside the rotating tube is prevented from acting on the conical sealing block, which is conducive to the rise of the conical sealing block and the lifting valve stem.

[0010] Preferably, an annular protrusion is provided on the upper surface of the rotating ring, and an annular sealing groove is provided on the lower surface of the fixed ring. A sealing ring is fixedly installed inside the annular sealing groove, and the annular protrusion is located inside the annular sealing groove. The annular protrusion on the upper surface of the rotating ring is inserted into the annular sealing groove on the lower surface of the fixed ring and squeezes the sealing ring, thereby achieving a sealing effect.

[0011] Preferably, an annular groove is provided inside the rotating hole, a bearing is fixedly installed inside the annular groove, and the lifting valve stem passes through the bearing, the outer ring of the bearing is fixed inside the annular groove, and the inner ring of the bearing is fixedly sleeved on the outer surface of the rotating tube, which is conducive to the rotation of the rotating tube.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model achieves the effect of being able to rotatably spray atomized oil into the interior of an engine combustion chamber by arranging a fixed hollow tube, a rotating tube, an impeller blade, a rotating ring, a fixed ring, a conical tube, an oil spray hole and an oil inlet hole, so that the atomized oil and air are fully mixed and evenly mixed, and the atomized oil is fully burned, thereby improving the performance of the engine, reducing fuel consumption, and reducing exhaust pollution. The oil pump transports high-pressure oil into the interior of the fixed hollow tube through the oil inlet hole, and enters the interior of the rotating tube, and is sprayed out from the oil spray hole in atomization. During the flow of oil in the rotating tube, the impeller blade is rotated, thereby causing the rotating tube and the conical tube to rotate, and the atomized oil can be rotatably sprayed into the interior of the engine combustion chamber.

[0014] 2. The utility model seals the gap between the fixed ring and the rotating ring by providing an annular sealing groove, an annular protrusion and a sealing ring. The annular protrusion on the upper surface of the rotating ring is inserted into the annular sealing groove on the lower surface of the fixed ring and squeezes the sealing ring, thereby achieving a sealing effect.

[0015] 3. The utility model can protect the control line by providing the wiring hole and the rubber ring. The control line for electromagnet control passes through the wiring hole, and the rubber ring prevents the control line from being broken due to wear at the wiring hole.

[0016] 4. The utility model provides a conical ring to prevent the pressure of the high-pressure oil inside the rotating tube from acting on the conical sealing block when the lifting valve stem drives the conical sealing block to rise, which is beneficial to the rise of the conical sealing block and the lifting valve stem. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0020] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of B.

[0021] Figure numerals: 1. conical tube; 2. oil injection hole; 3. rotating tube; 4. thread; 5. hexagonal ring; 6. fixed hollow tube; 7. lifting valve stem; 8. impeller blade; 9. rotating hole; 10. lifting slide; 11. spiral spring; 12. armature; 13. fixed partition; 14. electromagnet; 15. oil inlet hole; 16. conical ring; 17. conical sealing block; 18. control line; 19. rubber ring; 20. wiring hole; 21. fixed ring; 22. annular sealing groove; 23. sealing ring; 24. annular protrusion; 25. rotating ring; 26. annular groove; 27. bearing. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] like Figure 1-Figure 4 As shown, an engine fuel injection mechanism proposed by the utility model comprises a conical tube 1, a rotating tube 3 and a fixed hollow tube 6, a thread 4 is arranged on the outer surface of the fixed hollow tube 6 near the lower surface, the fixed hollow tube 6 is fixed to the engine by the thread 4, a hexagonal ring 5 is fixedly installed on the outer surface of the fixed hollow tube 6 at a position above the thread 4, the setting of the hexagonal ring 5 is convenient for using a wrench to rotate during the installation and fixation of the fixed hollow tube 6, a rotating hole 9 is arranged on the lower surface of the fixed hollow tube 6, and the rotating tube 3 passes through the rotating hole 9, the conical tube 1 and the rotating ring 25 are fixedly installed at both ends of the rotating tube 3, the rotating ring 25 is located inside the fixed hollow tube 6, and the conical tube 1 is located outside the fixed hollow tube 6, an annular groove 26 is arranged inside the rotating hole 9, a bearing 27 is fixedly installed inside the annular groove 26, and the lifting valve stem 7 passes through the bearing 27.

[0024] The outer ring of the bearing 27 is fixed inside the annular groove 26, and the inner ring of the bearing 27 is fixedly sleeved on the outer surface of the rotating tube 3, which is conducive to the rotation of the rotating tube 3. The inner wall of the fixed hollow tube 6 is fixedly installed with a fixing ring 21 at a position above the rotating ring 25. The upper surface of the rotating ring 25 is provided with an annular protrusion 24, and the lower surface of the fixing ring 21 is provided with an annular sealing groove 22. A sealing ring 23 is fixedly installed inside the annular sealing groove 22, and the annular protrusion 24 is located inside the annular sealing groove 22. The annular protrusion 24 on the upper surface of the rotating ring 25 is inserted into the annular sealing groove 22 on the lower surface of the fixing ring 21 and squeezes the sealing ring 23, thereby playing a sealing role. The oil injection holes 2 are symmetrically arranged on both sides of the outer surface of the conical tube 1, and a number of impeller blades 8 are fixedly installed on the inner wall of the rotating tube 3 in an annular array at equal distances.

[0025] An oil inlet hole 15 is provided on one side of the outer surface of the fixed hollow tube 6, and a lifting valve stem 7 is provided in the fixed hollow tube 6. Conical sealing blocks 17 and armatures 12 are fixedly connected at both ends of the lifting valve stem 7, respectively. The armature 12 is located inside the fixed hollow tube 6, and the conical sealing block 17 is located inside the conical tube 1. A conical ring 16 is fixedly installed on the upper surface of the conical sealing block 17. When the lifting valve stem 7 drives the conical sealing block 17 to rise, the pressure of the high-pressure oil inside the rotating tube 3 is prevented from acting on the conical sealing block 17, which is beneficial to the rise of the conical sealing block 17 and the lifting valve stem 7. An electromagnet 14 is fixedly installed on the top of the inner wall of the fixed hollow tube 6. After the electromagnet 14 is energized, the armature 12 is used to drive the lifting valve stem 7 to rise, so that the conical sealing block 17 and the oil injection hole 2 are separated, and the oil inside the rotating tube 3 is atomized and sprayed out from the oil injection hole 2.

[0026] A wiring hole 20 is provided on the upper surface of the fixed hollow tube 6, and a rubber ring 19 is fixedly installed inside the wiring hole 20. The electromagnet 14 is electrically connected to the control line 18, and the control line 18 passes through the rubber ring 19. The rubber ring 19 prevents the control line 18 from breaking due to wear at the wiring hole 20. A fixed partition 13 is fixedly installed on the inner wall of the fixed hollow tube 6 below the electromagnet 14. A coil spring 11 is fixedly connected to the lower surface of the fixed partition 13. A lifting slide 10 is fixedly connected to the end of the coil spring 11, and the lifting slide 10 is fixedly sleeved on the outer surface of the lifting valve stem 7. After the electromagnet 14 loses power, the elastic action of the coil spring 11 causes the lifting slide 10 and the lifting valve stem 7 to descend, and the oil injection hole 2 is blocked and sealed by the conical sealing block 17.

[0027] When the utility model is in use, the oil pump delivers high-pressure oil to the inside of the fixed hollow tube 6 through the oil inlet hole 15, and enters into the inside of the rotating tube 3, and is sprayed out from the oil spray hole 2 in atomization. In the process of the oil flowing in the rotating tube 3, the impeller blade 8 rotates, thereby rotating the rotating tube 3 and the conical tube 1, and the atomized oil can be rotated to spray the inside of the engine combustion chamber, so that the atomized oil and air are fully and evenly mixed, which is beneficial to the full combustion of the atomized oil, improves the engine performance and power, saves fuel consumption, and reduces exhaust emission pollution.

[0028] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An engine fuel injection mechanism, comprising a conical tube (1), a rotating tube (3) and a fixed hollow tube (6), characterized in that: The fixed hollow tube (6) is provided with a rotating hole (9) on its lower surface, and the rotating tube (3) passes through the rotating hole (9). A conical tube (1) and a rotating ring (25) are fixedly mounted at both ends of the rotating tube (3). A fixed ring (21) is fixedly mounted on the inner wall of the fixed hollow tube (6) at a position above the rotating ring (25). Oil injection holes (2) are symmetrically arranged at positions on both sides of the outer surface of the conical tube (1). A plurality of impeller blades (8) are fixedly mounted on the inner wall of the rotating tube (3) in an annular array at equal intervals. An oil inlet hole (15) is provided on one side of the outer surface of the fixed hollow tube (6). A lifting valve stem (7) is arranged in the fixed hollow tube (6). A conical sealing block (17) and an armature (12) are fixedly connected at both ends of the lifting valve stem (7). An electromagnet (14) is fixedly mounted on the top of the inner wall of the fixed hollow tube (6).

2. An engine fuel injection mechanism according to claim 1, characterized in that: The upper surface of the fixed hollow tube (6) is provided with a wiring hole (20), a rubber ring (19) is fixedly installed inside the wiring hole (20), the electromagnet (14) is electrically connected to a control line (18), and the control line (18) passes through the rubber ring (19).

3. An engine fuel injection mechanism according to claim 1, characterized in that: A thread (4) is provided on the outer surface of the fixed hollow tube (6) near the lower surface, and a hexagonal ring (5) is fixedly installed on the outer surface of the fixed hollow tube (6) at a position above the thread (4).

4. An engine fuel injection mechanism according to claim 1, characterized in that: A fixed partition (13) is fixedly installed on the inner wall of the fixed hollow tube (6) at a position below the electromagnet (14); a coil spring (11) is fixedly connected to the lower surface of the fixed partition (13); a lifting slide (10) is fixedly connected to the end of the coil spring (11); and the lifting slide (10) is fixedly sleeved on the outer surface of the lifting valve stem (7).

5. An engine fuel injection mechanism according to claim 1, characterized in that: A conical ring (16) is fixedly mounted on the upper surface of the conical sealing block (17).

6. An engine fuel injection mechanism according to claim 1, characterized in that: The upper surface of the rotating ring (25) is provided with an annular protrusion (24), the lower surface of the fixed ring (21) is provided with an annular sealing groove (22), a sealing ring (23) is fixedly installed inside the annular sealing groove (22), and the annular protrusion (24) is located inside the annular sealing groove (22).

7. An engine fuel injection mechanism according to claim 1, characterized in that: An annular groove (26) is provided inside the rotating hole (9), a bearing (27) is fixedly installed inside the annular groove (26), and the lifting valve stem (7) passes through the bearing (27).

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