High-performance automobile fuel pump

Abstract

The invention discloses a high-performance automobile fuel pump, and belongs to the field of fuel pumps, the high-performance automobile fuel pump comprises a machine shell, a bottom cover is fixedly mounted at the bottom end of the machine shell, and an inner circle is fixedly mounted in an inner cavity of the bottom cover; the extraction assembly comprises an inner circle fixedly installed on the inner cavity wall of the machine shell, a motor is arranged above the inner circle, the motor is installed in an inner cavity of the machine shell, an impeller is arranged in the inner circle, the output end of the motor penetrates through the inner circle to be fixedly installed with the impeller, and the output end of the motor is connected with the extraction assembly. The output end of the motor and the inner circle are rotationally installed, and a connecting plate is fixedly installed on the top of the bottom cover. According to the oil-gas separation device, additional suction force can be provided for the oil-gas separation hole on the basis of the impeller, additional blowing force can be generated in the exhaust pipe, pipeline resistance can be overcome, and it is ensured that gas in fuel oil can be effectively extracted and exhausted even under the condition of long or bent pipeline layout.

Description

Technical Field

[0001] The present invention relates to the field of fuel pumps, and more particularly to a high-performance automobile fuel pump. Background Art

[0002] The automobile fuel pump is a key component in the fuel supply system. It is responsible for pumping fuel from the fuel tank and delivering it to the engine's fuel rail or carburetor at a certain pressure. The main types of fuel pumps are mechanical fuel pumps and electric fuel pumps. Modern cars generally use electric fuel pumps.

[0003] In modern automobile fuel supply systems, the fuel pump is responsible for transporting fuel from the fuel tank to the engine. However, during actual operation, air or other gases will inevitably mix into the fuel, and the presence of these gases will have a negative impact on the performance of the fuel system. To address these problems, existing fuel pumps usually have an oil-gas separation hole on the impeller. The gas in the fuel is sucked into the low-pressure area created by the rotation of the impeller and discharged back into the fuel tank through a specific pipe.

[0004] However, in actual applications, automobile design needs to arrange the fuel system pipelines according to different models and layouts. In order to adapt to the overall structure of the automobile, the length of the pipeline will be extended or made to bend to a certain extent. Due to the influence of factors such as pipeline length and bending, longer or curved pipelines will lead to increased fluid resistance, so that the low-pressure area generated by the rotation of the impeller cannot effectively and completely discharge the gas in the fuel, resulting in the existence of gas resistance and cavitation, affecting the long-term stable operation of the fuel pump. At the same time, if the separated gas cannot be discharged back to the fuel tank in time, it will be re-mixed into the fuel flow, further aggravating the gas resistance and cavitation, and reducing the reliability of the entire fuel system. Summary of the Invention

[0005] In response to the problems existing in the prior art, the purpose of the present invention is to provide a high-performance automotive fuel pump that can provide additional suction to the oil-gas separation hole on the basis of the impeller, and at the same time generate additional blowing force in the exhaust pipe, thereby overcoming the pipeline resistance and ensuring that the gas in the fuel can be effectively extracted and discharged even in the case of a long or curved pipeline layout.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A high-performance automobile fuel pump comprises a housing, a bottom cover is fixedly mounted on the bottom end of the housing, and an inner circle is fixedly mounted in the inner cavity of the bottom cover;

[0008] Also includes:

[0009] An extraction component includes an inner circle fixedly mounted on the inner cavity wall of the casing, an electric motor is provided above the inner circle, the electric motor is mounted in the inner cavity of the casing, an impeller is provided in the inner circle, the output end of the electric motor passes through the inner circle and is fixedly mounted on the impeller, the output end of the electric motor is rotatably mounted on the inner circle, a connecting plate is fixedly mounted on the top of the bottom cover, a circular frame is rotatably mounted on the bottom of the impeller, the circular frame is fixedly mounted on the connecting plate, a fan blade 1 is provided in the inner cavity of the circular frame, the fan blade 1 is fixedly mounted on the impeller, an exhaust pipe is fixedly mounted on the bottom of the circular frame, the bottom end of the exhaust pipe passes through the bottom cover and extends into the fuel tank of the car, and a rotating component is provided in the exhaust pipe.

[0010] The top and bottom walls of the cavity are respectively fixed with an intake pipe and a blowing pipe, and the other end of the intake pipe passes through the bottom cover and the circular frame and extends to the inner cavity of the circular frame. The other end of the blowing pipe passes through the bottom cover and the exhaust pipe and is communicated with the inner cavity of the exhaust pipe.

[0011] The impeller is evenly provided with balancing holes connected on the upper and lower sides, and the impeller is evenly provided with oil-gas separation holes. The two ends of each group of the oil-gas separation holes are respectively connected to the inner edge of the impeller and the inner cavity of the circular frame. An oil inlet pipe is fixedly installed on one side of the bottom of the bottom cover.

[0012] Furthermore, a second fan blade is provided in the oil inlet pipe, a stirring rod is evenly fixedly installed on the rotating shaft of the second fan blade, a connecting plate is rotatably installed on the top end of the second fan blade, and the connecting plate is fixedly installed on one side of the connecting plate.

[0013] Furthermore, a fixed plate is fixedly installed on the top wall of the inner cavity of the cavity, a soil-shaped rod is slidably installed on the fixed plate, one end of the soil-shaped rod is contacted with the connecting plate, a reset spring is fixedly installed between the soil-shaped rod and the fixed plate, and a magnet block is fixedly installed on the side of the movable plate close to the soil-shaped rod.

[0014] Furthermore, a mounting plate is provided on the lower side of the cross plate, and the mounting plate is fixedly mounted on the inner cavity wall of the exhaust pipe. A sealing block is provided on the lower side of the mounting plate and is slidably mounted on the inner cavity of the exhaust pipe. An elastic rope is fixedly mounted between the sealing block and the mounting plate.

[0015] Furthermore, a limit block fixedly installed with the inner cavity of the exhaust pipe is provided on the lower side of the sealing block, and U-shaped openings are evenly opened on the inner cavity wall of the exhaust pipe. The two ends of each group of U-shaped openings are respectively located on the outside of the sealing block and the lower side of the limit block.

[0016] Furthermore, a rubber pad is fixedly installed between the connecting plate and the bottom cover.

[0017] Furthermore, a baffle is provided above the cross plate, and the baffle is fixedly mounted to the inner cavity wall of the exhaust pipe, and the baffle covers half of the cross plate.

[0018] Furthermore, the reset spring is in a compressed state in its initial state, the magnetic attraction force of the magnet block is greater than the elastic force of the reset spring, and the earth-shaped rod is made of a magnetically attractive material.

[0019] Furthermore, the top end of the air suction pipe is located on the upper side of the fan blade 1, and the bottom end of the air blowing pipe is located on the lower side of the U-shaped opening.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) This solution drives the fan blade 1 to rotate synchronously at high speed while the impeller rotates. The rotation of the fan blade 1 can provide additional suction to the oil-gas separation hole on the basis of the impeller, and at the same time generate additional blowing force to the exhaust pipe, which can overcome the pipeline resistance and ensure that the gas in the fuel can be effectively extracted and discharged even in the case of a long or curved pipeline layout, significantly improving the efficiency and stability of oil-gas separation, reducing the risk of gas resistance and cavitation, extending the service life of the fuel pump and related components, and improving the reliability and safety of the entire fuel system.

[0022] (2) This solution uses a reciprocating screw to drive the push plate to move back and forth left and right on the inner wall of the cavity through the movable plate. Through the cooperation of the suction pipe and the blowing pipe, the push plate can move back and forth left and right to generate additional suction force in the oil-gas separation hole and additional downward blowing force in the exhaust pipe, further improving the stability and efficiency of gas discharge, preventing the separated gas from re-mixing into the fuel flow, ensuring that the gas is smoothly discharged back to the fuel tank, and at the same time helping to maintain the positive flow in the pipeline and reduce the possibility of gas backflow.

[0023] (3) In this solution, the rotation of the second fan blade drives the groups of stirring rods thereon to rotate synchronously. The rotation of the stirring rods can generate vortices in the fuel, which helps to separate the gas in the fuel and plays a role in preliminary gas-liquid separation. To a certain extent, it can reduce the burden of subsequent oil-gas separation. At the same time, through the oblique setting of the stirring rods, the inclined stirring rods can generate a more complex flow field when rotating, which helps to form vortices, thereby better stirring the fuel, making the fuel flow smoother and reducing local resistance. If the fuel contains components of different densities, the stirring rods can help these components to be better mixed, ensuring that the fuel entering the fuel pump has a more uniform composition.

[0024] (4) This solution uses a movable plate to drive the magnet block to move left and right in the cavity. With the cooperation of the reset spring and the earth-shaped rod, the push plate can reciprocate and hit the connecting plate and vibrate it. The shock wave will be transmitted to each group of stirring rods. The stirring rods will vibrate the fuel flowing outside them, which can help break the tiny bubbles in the fuel, making it easier to separate them, further improving the separation efficiency, and thus effectively improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the front side of the present invention;

[0026] Figure 2 is a cross-sectional view of the housing of the present invention;

[0027] Figure 3 It is a cross-sectional view of the inner circle of the present invention;

[0028] Figure 4 It is an overall cross-sectional view of the present invention;

[0029] Figure 5 For the present invention Figure 4 A magnified view of the structure of the middle part A;

[0030] Figure 6 For the present invention Figure 5 A magnified view of the structure of the middle B section;

[0031] Figure 7 For the present invention Figure 5 Enlarged view of the structure of part C in the middle.

[0032] Description of the numbers in the figure:

[0033] 1. Casing; 2. Bottom cover; 3. Inner circle; 4. Motor; 5. Impeller; 6. Oil inlet pipe; 7. Rubber pad; 8. Connecting plate; 9. Round frame; 10. Blade 1; 11. Balancing hole; 12. Oil-gas separation hole; 13. Exhaust pipe; 14. Limit block; 15. Cavity; 16. Reciprocating screw; 17. Fixed plate; 18. Earth-shaped rod; 19. Return spring; 20. U-shaped mouth; 21. Movable plate; 22. Magnet block; 23. Connecting plate; 24. Blade 2; 25. Stirring rod; 26. Cross plate; 27. Baffle; 28. Push plate; 29. ​​Intake pipe; 30. Blowing pipe; 31. Mounting plate; 32. Elastic rope; 33. Sealing block. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 7 A high-performance automobile fuel pump comprises a housing 1, a bottom cover 2 is fixedly mounted on the bottom end of the housing 1, and an inner circle 3 is fixedly mounted in the inner cavity of the bottom cover 2;

[0036] Also includes:

[0037] The extraction component includes an inner circle 3 fixedly mounted on the inner cavity wall of the casing 1, a motor 4 is arranged above the inner circle 3, the motor 4 is installed in the inner cavity of the casing 1, an impeller 5 is arranged in the inner circle 3, the output end of the motor 4 passes through the inner circle 3 and is fixedly mounted on the impeller 5, the output end of the motor 4 is rotatably mounted on the inner circle 3, a connecting plate 8 is fixedly mounted on the top of the bottom cover 2, a circular frame 9 is rotatably mounted on the bottom of the impeller 5, the circular frame 9 is fixedly mounted on the connecting plate 8, a fan blade 10 is provided in the inner cavity of the circular frame 9, the fan blade 10 is fixedly mounted on the impeller 5, an exhaust pipe 13 is fixedly mounted on the bottom of the circular frame 9, the bottom end of the exhaust pipe 13 passes through the bottom cover 2 and extends into the fuel tank of the car, and a rotating component is provided in the exhaust pipe 13.

[0038] The rotating assembly includes a reciprocating screw rod 16 rotatably mounted in the exhaust pipe 13, a cavity 15 is opened in the connecting plate 8 and the bottom cover 2, the other end of the reciprocating screw rod 16 passes through the exhaust pipe 13 and the bottom cover 2 and is rotatably mounted on the inner wall of the cavity 15, and a movable plate 21 is slidably mounted on the inner cavity of the cavity 15, and the movable plate 21 is threadedly mounted on the reciprocating screw rod 16. A push plate 28 is fixedly mounted on the side of the movable plate 21 close to the exhaust pipe 13, and the push plate 28 is fixedly mounted on the inner wall of the cavity 15. The inner cavity and the rod wall of the reciprocating screw rod 16 are slidably mounted. A cross plate 26 is fixedly mounted on the rod wall of the reciprocating screw rod 16 located inside the exhaust pipe 13. An air suction pipe 29 and an air blowing pipe 30 are respectively fixedly mounted on the inner cavity top wall and the bottom wall of the cavity 15 close to the exhaust pipe 13. The other end of the air suction pipe 29 passes through the bottom cover 2 and the circular frame 9 and extends to the inner cavity of the circular frame 9. The other end of the air blowing pipe 30 passes through the bottom cover 2 and the exhaust pipe 13 and is connected to the inner cavity of the exhaust pipe 13.

[0039] Balancing holes 11 are evenly opened on the impeller 5 and connected on the upper and lower sides. Oil-gas separation holes 12 are evenly opened in the impeller 5. The two ends of each group of oil-gas separation holes 12 are respectively connected to the inner edge of the impeller 5 and the inner cavity of the circular frame 9. An oil inlet pipe 6 is fixedly installed on one side of the bottom of the bottom cover 2.

[0040] First, connect the fuel inlet pipe 6 to the pipeline for extracting fuel from the fuel tank, and extend the bottom end of the exhaust pipe 13 into the fuel tank. When it is necessary to extract fuel from the fuel tank, turn on the motor 4. The operation of the motor 4 will drive the impeller 5 to rotate at high speed within the inner circle 3. The high-speed rotation of the impeller 5 will create a low-pressure area around it. Because the pressure at the inlet of the fuel pump is lower than the pressure in the fuel tank, the filtered fuel will be sucked into the area around the impeller 5 through the fuel inlet pipe 6. As the impeller rotates, the fuel is accelerated and pushed to the outer edge of the impeller 5. There, the fuel pressure increases and is discharged upward through the opening on the inner circle 3. Finally, it is delivered to the vehicle engine through the outlet pipe at the top of the casing 1. The balancing hole 11 is provided. When the impeller 5 rotates at high speed, the balancing hole 11 allows the fuel on the upper and lower sides of the impeller 5 to circulate with each other, thereby reducing the pressure imbalance caused by the pressure difference between the inlet and outlet. This design helps to stabilize the working state of the impeller 5, reduce vibration and noise, and improve the output flow rate and efficiency of the fuel pump. When the impeller 5 rotates at high speed, the fuel The fuel is pushed and gradually accelerated by the impeller 5. Due to the centrifugal force, the fuel moves outward along the impeller 5 and is eventually pushed to the outer edge of the impeller 5. A relatively low-pressure area is formed at the inner edge of the impeller 5. Since the fuel is not a pure liquid and contains a certain amount of gas, and the gas density is relatively low, these gases will separate from the fuel and gather at the outer edge of the impeller 5. At this time, these gases will be sucked into the oil-gas separation hole 12 and discharged into the circular frame 9, and then discharged into the fuel tank again through the exhaust pipe 13. At the same time, the impeller 5 will drive the fan blade 10 to rotate synchronously at a high speed while rotating. The rotation of the fan blade 10 can provide additional suction to the oil-gas separation hole 12 on the basis of the impeller 5, and generate additional blowing force to the exhaust pipe 13, which can overcome the pipeline resistance and ensure that the gas in the fuel can be effectively extracted and discharged even in the case of a long or curved pipeline layout, significantly improving the efficiency and stability of oil-gas separation, reducing the risk of gas blockage and cavitation, extending the service life of the fuel pump and related components, and improving the reliability and safety of the entire fuel system.

[0041] A one-way valve is installed in both the suction pipe 29 and the blow pipe 30. When the gas in the fuel is extracted and discharged into the exhaust pipe 13, the gas flowing in the exhaust pipe 13 will drive the cross plate 26 to rotate, and the cross plate 26 will drive the reciprocating screw 16 to rotate synchronously. The rotation of the reciprocating screw 16 will drive the movable plate 21 to move back and forth left and right on the inner wall of the cavity 15. When the movable plate 21 moves, it will drive the push plate 28 to move synchronously. When the push plate 28 moves to the left, the push plate 28 will generate suction on the oil and gas separation hole 12 on the upper side of the circular frame 9 through the suction pipe 29, which will suck the gas inside The gas is sucked into the cavity 15 on the right side of the push plate 28. When the push plate 28 moves to the right, the push plate 28 will squeeze the gas in the cavity 15 on the right side and discharge it into the inner cavity of the exhaust pipe 13 through the blowing pipe 30. At this time, the reciprocating movement of the push plate 28 can realize the reciprocating generation of additional suction force in the oil-gas separation hole 12 and additional downward blowing force in the exhaust pipe 13, further improving the stability and efficiency of gas discharge, preventing the separated gas from re-mixing into the fuel flow, ensuring that the gas is smoothly discharged back to the fuel tank, and at the same time helping to maintain the forward flow in the pipeline and reducing the possibility of gas backflow.

[0042] like Figure 5 and Figure 6 As shown, a second fan blade 24 is provided in the oil inlet pipe 6, and a stirring rod 25 is evenly fixedly installed on the rotating shaft of the second fan blade 24. A connecting plate 23 is rotatably installed on the top of the second fan blade 24, and the connecting plate 23 is fixedly installed on one side of the connecting plate 8.

[0043] A fixed plate 17 is fixedly installed on the top wall of the inner cavity of the cavity 15, and a soil-shaped rod 18 is slidably installed on the fixed plate 17. One end of the soil-shaped rod 18 is in contact with the connecting plate 23. A reset spring 19 is fixedly installed between the soil-shaped rod 18 and the fixed plate 17. A magnet block 22 is fixedly installed on the side of the movable plate 21 close to the soil-shaped rod 18.

[0044] When the fuel is drawn by the impeller 5 and flows in the fuel inlet pipe 6, it drives the second fan blade 24 to rotate. The rotation of the second fan blade 24 drives the groups of stirring rods 25 thereon to rotate synchronously. The rotation of the stirring rods 25 can generate eddies in the fuel, which helps to separate the gas in the fuel and plays a role in preliminary gas-liquid separation. To a certain extent, it can reduce the burden of subsequent oil-gas separation. At the same time, the inclined arrangement of the stirring rods 25 can generate a more complex flow field when rotating, which helps to form eddies, thereby better stirring the fuel, making the fuel flow smoother and reducing local resistance. If the fuel contains components with different densities, such as water and fuel, the stirring rods can help these components mix better, ensuring that the fuel entering the fuel pump has a more uniform composition.

[0045] The length of the reciprocating thread on the reciprocating screw 16 is equal to the distance between the right end of the soil-shaped rod 18 and the right side wall of the upper inner cavity of the cavity 15. When the reciprocating screw 16 rotates and drives the movable plate 21 to move left and right in the inner cavity of the cavity 15, the movable plate 21 will drive the magnet block 22 to move synchronously. When the movable plate 21 moves to the left, the movable plate 21 will drive the magnet block 22 to move in the direction of the soil-shaped rod 18. When the soil-shaped rod 18 enters the magnetic attraction range of the magnet block 22, the magnet block 22 will generate suction on the soil-shaped rod 18, which will adsorb the soil-shaped rod 18 to move to the right on the fixed plate 17 and squeeze the return spring 19. At this time, the magnet block 22 continues to move to the left. Under the action of the return spring 19, the return spring 19 will push the soil-shaped rod 18 to move to the left following the magnet block 22. When the movable plate 21 drives the magnet block 22 to move to the right When the engine is moving, the suction force of the magnet block 22 will drive the soil-shaped rod 18 to move to the right away from the connecting plate 23 and squeeze the return spring 19. When the return spring 19 is squeezed to the maximum extent, the magnet block 22 continues to move to the right and separates from the soil-shaped rod 18. Under the action of the return spring 19, the return spring 19 returns to its initial state and pushes the soil-shaped rod 18 to the left to its initial position, so that the soil-shaped rod 18 can move to the left and hit the connecting plate 23. At this time, during the reciprocating movement of the magnet block 22 left and right, the push plate 28 can reciprocate and hit the connecting plate 23 and vibrate it. The shock wave will be transmitted to each group of stirring rods 25, and the stirring rod 25 will vibrate the fuel flowing outside it, which can help break the tiny bubbles in the fuel and make it easier to separate them, further improving the separation efficiency, thereby effectively improving work efficiency.

[0046] like Figure 5 and Figure 7 As shown, a mounting plate 31 is provided on the lower side of the cross plate 26, and the mounting plate 31 is fixedly installed with the inner cavity wall of the exhaust pipe 13. A sealing block 33 is provided on the lower side of the mounting plate 31 and is slidably installed with the inner cavity of the exhaust pipe 13. An elastic rope 32 is fixedly installed between the sealing block 33 and the mounting plate 31.

[0047] A limit block 14 fixedly installed with the inner cavity of the exhaust pipe 13 is provided on the lower side of the sealing block 33. U-shaped openings 20 are evenly opened on the inner cavity wall of the exhaust pipe 13. The two ends of each group of U-shaped openings 20 are respectively located on the outside of the sealing block 33 and the lower side of the limit block 14.

[0048] When the gas in the fuel is separated and discharged into the exhaust pipe 13, the gas pressure pushes the sealing block 33 downward within the exhaust pipe 13 and stretches the elastic cord 32. When the sealing block 33 moves downward and contacts the top of the stop block 14, it cannot move further downward. The upper and lower ends of each set of U-shaped openings 20 are respectively connected to the upper and lower sides of the sealing block 33, allowing the gas above the sealing block 33 to be discharged through the U-shaped opening 20 to the lower side thereof. The gas discharged to the lower side of the sealing block 33 is eventually discharged into the fuel tank. When the gas pressure above the sealing block 33 is eliminated, the elastic cord 32 returns to its original state under the action of the elastic cord 32, pulling the sealing block 33 upward to its original position. The sealing block 33 blocks the top of the U-shaped opening 20, acting as a check valve and preventing the fuel in the fuel tank from flowing back into the oil-gas separation hole 12. This not only helps maintain the stability of the low-pressure area, but also prevents the gas from re-mixing into the fuel flow, effectively improving the performance of the fuel tank.

[0049] like Figure 5 As shown, a rubber pad 7 is fixedly installed between the connecting plate 8 and the bottom cover 2 .

[0050] A baffle 27 is provided above the cross plate 26 . The baffle 27 is fixed to the inner wall of the exhaust pipe 13 , and covers half of the cross plate 26 .

[0051] By setting the rubber pad 7, the vibration generated by the impact in the connecting plate 8 can be absorbed, thereby achieving shock absorption to prevent unnecessary noise and wear and improve the overall reliability. The baffle 27 blocks half of the cross plate 26 so that the gas separated from the fuel can stably blow the cross plate 26 to rotate when it is discharged into the exhaust pipe 13.

[0052] like Figures 5 to 7 As shown, the reset spring 19 is in a compressed state in its initial state, the magnetic attraction force of the magnet block 22 is greater than the elastic force of the reset spring 19, and the earth-shaped rod 18 is made of a magnetically attractive material.

[0053] The top end of the air suction pipe 29 is located on the upper side of the fan blade 10, and the bottom end of the air blowing pipe 30 is located on the lower side of the U-shaped opening 20.

[0054] By making the reset spring 19 in a compressed state in its initial state, the soil-shaped rod 18 can be tightly attached to the connecting plate 23 to facilitate the impact work. By making the soil-shaped rod 18 of a magnetically attractive material, the magnetic attraction force of the magnet block 22 is greater than the elastic force of the reset spring 19, so that the magnet block 22 can absorb the soil-shaped rod 18 and move it. The top end of the suction pipe 29 is located on the upper side of the fan blade 10, so that the suction pipe 29 can cooperate with the fan blade 10 to generate a common additional suction force.

[0055] Working principle: First, connect the oil inlet pipe 6 to the pipe for extracting fuel from the fuel tank, extend the bottom end of the exhaust pipe 13 and install it into the fuel tank. When it is necessary to extract the fuel from the fuel tank, turn on the motor 4. The operation of the motor 4 will drive the impeller 5 to rotate at high speed in the inner circle 3, and extract the fuel in the fuel tank into the casing 1 through the oil inlet pipe 6. The fuel flowing through the oil inlet pipe 6 will drive the fan blade 24 to rotate, and the fan blade 24 will drive the stirring rod 25 to stir the fuel to achieve preliminary gas-liquid separation. During the high-speed rotation process, the impeller 5 will separate the fuel around it into gas and liquid. The separated fuel will be transported to the casing 1 and flow upward and finally discharged into the car's engine through the outlet pipe, and the gas will be sucked into the oil-gas separation hole 12 and discharged into the exhaust pipe 13. The impeller 5 will drive the fan 2 while rotating. The blade 10 rotates, generating additional suction in the oil-gas separation hole 12 and additional suction in the exhaust pipe 13. When the gas flows in the exhaust pipe 13, it will drive the reciprocating screw 16 to rotate through the cross plate 26. At this time, the movable plate 21 will drive the push plate 28 to move back and forth. The push plate 28 will again generate additional suction in the oil-gas separation hole 12 through the suction pipe 29, and realize additional downward blowing force in the exhaust pipe 13 through the blowing pipe 30. At the same time, the reciprocating movement of the movable plate 21 through the cooperation of the magnet block 22 and the return spring 19 can make the earth-shaped rod 18 reciprocate and hit the connecting plate 23 to vibrate the stirring rod 25, thereby further achieving the effect of gas-liquid separation. The cooperation of the elastic rope 32 and the sealing block 33 can prevent the fuel in the fuel tank from flowing back and prevent the gas from re-mixing into the fuel flow.

[0056] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A high-performance automobile fuel pump, comprising a housing (1), a bottom cover (2) fixedly mounted at the bottom end of the housing (1), and an inner circle (3) fixedly mounted in the inner cavity of the bottom cover (2); Its characteristics are: Also includes: The extraction component comprises an inner circle (3) fixedly mounted on the inner cavity wall of the housing (1), a motor (4) is arranged above the inner circle (3), the motor (4) is mounted in the inner cavity of the housing (1), an impeller (5) is arranged in the inner circle (3), the output end of the motor (4) passes through the inner circle (3) and is fixedly mounted with the impeller (5), the output end of the motor (4) is rotatably mounted with the inner circle (3), and the top of the bottom cover (2) is fixedly mounted. A connecting plate (8) is provided, a circular frame (9) is rotatably mounted on the bottom of the impeller (5), the circular frame (9) is fixedly mounted on the connecting plate (8), a fan blade (10) is provided in the inner cavity of the circular frame (9), the fan blade (10) is fixedly mounted on the impeller (5), an exhaust pipe (13) is fixedly mounted on the bottom of the circular frame (9), the bottom end of the exhaust pipe (13) passes through the bottom cover (2) and extends into the fuel tank of the automobile, and a rotating component is provided in the exhaust pipe (13).

2. A high-performance automotive fuel pump according to claim 1, characterized in that: The rotating assembly includes a reciprocating screw rod (16) rotatably mounted in the exhaust pipe (13), a cavity (15) communicating with each other is provided in the connecting plate (8) and the bottom cover (2), the other end of the reciprocating screw rod (16) passes through the exhaust pipe (13) and the bottom cover (2) and is rotatably mounted on the inner wall of the cavity (15), a movable plate (21) is slidably mounted in the inner cavity of the cavity (15), the movable plate (21) is threadedly mounted on the reciprocating screw rod (16), a push plate (28) is fixedly mounted on the side of the movable plate (21) close to the exhaust pipe (13), and the push plate (28) is connected to the cavity ( The inner cavity of the cavity (15) and the rod wall of the reciprocating screw rod (16) are slidably mounted, and the reciprocating screw rod (16) is fixedly mounted with a cross plate (26) on the rod wall of the reciprocating screw rod (16) located in the exhaust pipe (13). An air intake pipe (29) and an air blowing pipe (30) are fixedly mounted on the top wall and the bottom wall of the inner cavity of the cavity (15) close to the exhaust pipe (13), respectively. The other end of the air intake pipe (29) passes through the bottom cover (2) and the circular frame (9) and extends to the inner cavity of the circular frame (9). The other end of the air blowing pipe (30) passes through the bottom cover (2) and the exhaust pipe (13) and is connected to the inner cavity of the exhaust pipe (13); The impeller (5) is evenly provided with balancing holes (11) connected at the upper and lower sides. The impeller (5) is evenly provided with oil-gas separation holes (12). The two ends of each group of the oil-gas separation holes (12) are respectively connected to the inner edge of the impeller (5) and the inner cavity of the circular frame (9). An oil inlet pipe (6) is fixedly installed on one side of the bottom of the bottom cover (2).

3. A high-performance automotive fuel pump according to claim 2, characterized in that: A second fan blade (24) is provided in the oil inlet pipe (6), a stirring rod (25) is evenly fixedly installed on the rotating shaft of the second fan blade (24), a connecting plate (23) is rotatably installed on the top end of the second fan blade (24), and the connecting plate (23) is fixedly installed on one side of the connecting plate (8).

4. A high-performance automotive fuel pump according to claim 3, characterized in that: A fixed plate (17) is fixedly mounted on the inner cavity top wall of the cavity (15), a soil-shaped rod (18) is slidably mounted on the fixed plate (17), one end of the soil-shaped rod (18) is arranged in contact with the connecting plate (23), a return spring (19) is fixedly mounted between the soil-shaped rod (18) and the fixed plate (17), and a magnet block (22) is fixedly mounted on the side of the movable plate (21) close to the soil-shaped rod (18).

5. A high-performance automotive fuel pump according to claim 4, characterized in that: A mounting plate (31) is provided on the lower side of the cross plate (26), and the mounting plate (31) is fixedly mounted on the inner cavity wall of the exhaust pipe (13). A sealing block (33) is provided on the lower side of the mounting plate (31) and is slidably mounted on the inner cavity of the exhaust pipe (13). An elastic rope (32) is fixedly mounted between the sealing block (33) and the mounting plate (31).

6. A high-performance automotive fuel pump according to claim 5, characterized in that: A limiting block (14) is provided on the lower side of the sealing block (33) and is fixedly mounted on the inner cavity of the exhaust pipe (13). U-shaped openings (20) are evenly opened on the inner cavity wall of the exhaust pipe (13), and the two ends of each group of the U-shaped openings (20) are respectively located on the outer side of the sealing block (33) and the lower side of the limiting block (14).

7. A high-performance automotive fuel pump according to claim 1, characterized in that: A rubber pad (7) is fixedly installed between the connecting plate (8) and the bottom cover (2).

8. A high-performance automotive fuel pump according to claim 2, characterized in that: A baffle (27) is provided above the cross plate (26), and the baffle (27) is fixedly mounted on the inner cavity wall of the exhaust pipe (13), and the baffle (27) covers half of the cross plate (26).

9. A high-performance automotive fuel pump according to claim 4, characterized in that: The reset spring (19) is in a compressed state in its initial state, the magnetic attraction force of the magnet block (22) is greater than the elastic force of the reset spring (19), and the earth-shaped rod (18) is made of a magnetically attractive material.

10. A high-performance automotive fuel pump according to claim 2, characterized in that: The top end of the air suction pipe (29) is located on the upper side of the fan blade (10), and the bottom end of the air blowing pipe (30) is located on the lower side of the U-shaped opening (20).

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