Automotive fuel pump assembly

Abstract

This utility model discloses an automotive fuel pump assembly belonging to the field of automotive fuel pump technology, including a flange, a fuel pump, a fuel reservoir, and a fuel level indicator. The flange is provided with an inlet pipe, an outlet pipe, and an electrical plug. The fuel reservoir has a first mounting cavity and a second mounting cavity. The fuel pump passes through the first mounting cavity, and a pressure regulating valve passes through the second mounting cavity. A control box is also provided on the end face of the flange, and a fuel pump control board is provided in the control box. The pressure regulating valve is located on the fuel reservoir. Fuel is input into the fuel reservoir from the inlet pipe. When the inlet pressure is high, the pressure regulating valve can release overpressured fuel into the fuel tank to avoid excessive inlet fuel pressure. When the fuel pressure in the fuel tank is high, the pressure regulating valve can also reduce the pressure in the fuel tank, realizing dual regulation of fuel tank pressure and inlet fuel pressure. At the same time, the fuel pump control board can control the fuel pump speed, thereby regulating the fuel output.

Description

Technical Field

[0001] This utility model relates to the field of automotive fuel pump technology, specifically to automotive fuel pump assemblies. Background Technology

[0002] With economic development and social progress, high power and horsepower in car engines have become a key pursuit for racing enthusiasts. The goal is to achieve instantaneous and rapid acceleration, the feeling of being pushed back in your seat during acceleration, and the higher speeds desired by high horsepower, allowing drivers to enjoy the thrill of driving, playing with cars, and racing. As a core component of a car engine's power system, the fuel pump assembly's flow rate and overall performance are directly related to engine horsepower.

[0003] Chinese patent application CN205654467U discloses a fuel pump assembly including a top cover, a tilt valve, a filter, a fuel pump, a pressure regulating valve, a bottom housing, and a float assembly. The top cover is connected to the bottom housing via a support rod. The pressure regulating valve is mounted on the top cover via a pressure regulating valve seat. The filter is located inside the bottom housing, with the fuel pump located at the upper end of the filter. The float assembly is located on one side of the bottom housing. The lower end of the pressure regulating valve is connected to a first bellows and a second bellows. An oil temperature sensor is also located on the outer side of the bottom of the bottom housing, and the oil temperature sensor is electrically connected to an electrical plug located on the top cover.

[0004] However, the pressure regulating valve of the aforementioned fuel pump assembly is located on the flange and connected to the fuel inlet pipe. During use, the pressure regulating valve can only regulate the fuel pressure in the fuel inlet pipe and cannot regulate the fuel pressure in the fuel reservoir. This fails to meet the requirement for rapid pressure regulation of the fuel pump assembly. In addition, the fuel pump is directly electrically connected to the power plug, meaning that the fuel pump assembly is controlled by powering on the power plug. However, the aforementioned fuel pump assembly can only achieve a fixed amount of fuel pumping and cannot control the fuel pumping volume according to the engine's fuel pumping requirements and operating conditions, resulting in significant fuel waste.

[0005] Therefore, it is necessary to improve upon the aforementioned shortcomings. Utility Model Content

[0006] The purpose of this invention is to provide an automotive fuel pump assembly that can adjust the amount of fuel pumped into the engine, regulate the inlet and storage oil pressure, operate quickly, and is easy to assemble, in order to solve the above-mentioned problems existing in the prior art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automotive fuel pump assembly, including a flange, a fuel pump, a fuel reservoir, and a fuel level indicator. The flange is provided with an inlet pipe, an outlet pipe, and an electrical plug. The fuel level indicator is located on the fuel reservoir. The fuel reservoir has a first mounting cavity and a second mounting cavity. The fuel pump passes through the first mounting cavity, and a pressure regulating valve passes through the second mounting cavity. A control box is also provided on the end face of the flange. The control box contains a fuel pump control board that is electrically connected to the electrical plug. The fuel pump control board can control the operating speed of the fuel pump and adjust the fuel pump volume.

[0008] By adopting the above technical solution: the pressure regulating valve is installed on the fuel reservoir. Fuel is input into the fuel reservoir from the fuel inlet pipe. When the fuel inlet pressure is high, the pressure regulating valve can release the overpressured fuel into the fuel tank to avoid excessive fuel inlet pressure. When the fuel tank pressure is high, the pressure regulating valve can also reduce the pressure in the fuel tank, thus achieving dual regulation of fuel tank pressure and fuel inlet pressure. At the same time, the electrical signal is transmitted to the fuel pump control board in the control box through the electrical plug. After the fuel pump control board recognizes and processes the electrical signal, it adjusts the fuel pump speed, thereby adjusting the fuel pump volume. Compared with the traditional method of directly controlling the fuel pump through the electrical plug, this application directly sets the control box on the flange, which can adjust the fuel pump volume in real time according to the actual working conditions of the engine, making fuel volume adjustment more convenient.

[0009] The aforementioned automotive fuel pump assembly can be further configured as follows: the fuel reservoir includes a housing and a cover plate; a first mounting tube is provided in the first mounting cavity; several limiting plates extend from the end of the first mounting tube toward the center; and several mounting buckles are provided on the inner wall of the second mounting cavity, which are used to engage the pressure regulating valve in the second mounting cavity.

[0010] By adopting the above technical solution: the cover plate covers the housing, the oil pump passes through the first mounting pipe in the first mounting cavity and is limited and fixed in the first mounting cavity by the limiting plate, and at the same time, when the pressure regulating valve passes through the second mounting cavity, the mounting buckle cooperates with the outer circumferential surface of the pressure regulating valve to achieve rapid fixation of the pressure regulating valve.

[0011] The aforementioned automotive fuel pump assembly can be further configured as follows: the cover plate is provided with a baffle plate, the baffle plate and the inner wall of the fuel reservoir form a third mounting cavity, the fuel level indicator is installed in the third mounting cavity, the fuel level indicator includes an indicator frame, an indicator arm, a float support rod, and a float, the indicator frame is provided with a resistor, the indicator arm is rotatably engaged with the indicator frame, one end of the float support rod is linked to the indicator arm and the other end is fixedly connected to the float, and the indicator arm is provided with an indicator contact piece.

[0012] By adopting the above technical solution: the indicator frame is inserted into the third mounting cavity and is snapped into the inner wall of the oil reservoir. The float floats on the surface of the fuel. The indicator arm of the float support rod rotates around the hinge point between it and the indicator frame. The indicator contact rotates relative to the resistance plate, adjusting the resistance, thereby identifying the amount of fuel in the tank.

[0013] The aforementioned automotive fuel pump assembly can be further configured as follows: the pressure regulating valve includes a valve cylinder and a valve body. The valve cylinder passes through the second mounting cavity. A snap-fit ​​sleeve is provided at the end of the valve cylinder. A snap-fit ​​groove is provided on the side wall of the snap-fit ​​sleeve. The valve body is snapped into the snap-fit ​​sleeve. A snap-fit ​​clamp passes through the snap-fit ​​groove. The snap-fit ​​clamp is used to snap the valve body and the valve cylinder together. A pressure regulating pipe is provided on the side wall of the snap-fit ​​sleeve. Several sealing protrusions are provided on the outer periphery of the pressure regulating pipe. The pressure regulating pipe is connected to the oil inlet pipe through an oil inlet bend.

[0014] By adopting the above technical solution: the valve cylinder and the second mounting cavity are engaged and fixed in the second mounting cavity by the mounting buckle, the valve body is inserted into the middle of the clamping cylinder, and then the clamping clamp is inserted from the clamping groove into the clamping cylinder, thus realizing the assembly and fixation of the pressure regulating valve. The pressure regulating pipe is connected to the valve cylinder and is connected to the oil inlet pipe through the oil inlet bend. Fuel is input from the oil inlet pipe into the pressure regulating pipe, and then flows into the fuel tank through the valve cylinder. The sealing convex ring can improve the sealing performance of the connection between the oil inlet bend and the pressure regulating pipe, preventing fuel leakage. At the same time, when the fuel pressure in the oil inlet pipe and the pressure regulating valve is high, the valve body is connected to the fuel tank to release the overpressure fuel into the fuel tank. At the same time, when the fuel pressure in the fuel tank is high, some fuel can be input into the valve cylinder, thereby reducing the fuel pressure in the fuel tank and realizing rapid regulation of the fuel pressure in the fuel tank.

[0015] The aforementioned automotive fuel pump assembly can be further configured as follows: a first connector extends from the control box to the other side of the flange, and a second connector extends from the electrical plug to the other side of the flange. The fuel pump includes a pump body, an outlet end cap, and an inlet end cap. The inlet end cap is connected to the pump body and has an inlet port. The outlet end cap is connected to the pump body and has a first outlet connecting pipe and a fuel pump electrical connector. The fuel pump electrical connector is electrically connected to the first connector via an electrical wire. When the pump body operates, it draws fuel from the inlet port and discharges it from the first outlet connecting pipe.

[0016] By adopting the above technical solution: the vehicle power supply can simultaneously supply power to the fuel pump, pressure regulating valve and other electrical devices through the electrical plug. The first connector of the control box is connected to the fuel pump electrical plug on the fuel pump to supply power and control the fuel pump. The second electrical plug is electrically connected to the pressure regulating valve to supply power and control the pressure regulating valve. When the fuel pump is running, the rotor inside the pump body rotates, and the fuel inlet on the fuel inlet end cap draws fuel from the fuel tank and pumps it out from the first fuel outlet connection pipe. The electrical connection between the pump body and the control box is more stable, and the fuel pump control board can control the fuel pump more quickly.

[0017] The above-mentioned automotive fuel pump assembly can be further configured as follows: the flange connecting oil outlet pipe is provided with a second oil outlet connecting pipe, the second oil outlet connecting pipe is provided with several sealing bosses, the end of the first oil outlet connecting pipe is provided with a sealing ring, the sealing ring is provided to protrude from the first oil outlet connecting pipe, and the first oil outlet connecting pipe and the second oil outlet connecting pipe are connected through an oil outlet bend.

[0018] By adopting the above technical solution: the first oil outlet connecting pipe and the second oil outlet connecting pipe on the oil outlet end cap of the oil pump are connected by an oil outlet bend. The fuel pumped by the oil pump can be quickly pumped out from the oil outlet pipe. Furthermore, the sealing convex ring at the end of the first oil outlet connecting pipe protrudes relative to the outer surface of the first oil outlet connecting pipe and can be interference-fitted with the inner wall of the oil outlet bend. The sealing convex ring of the second oil outlet connecting pipe can also be interference-fitted with the inner wall of the oil outlet bend. The fuel pumped by the oil pump can be completely pumped out from the oil outlet pipe, preventing fuel leakage.

[0019] The aforementioned automotive fuel pump assembly can be further configured as follows: the flange connecting to the oil outlet pipe is also provided with a pressure measuring section, the pressure measuring section having a pressure measuring hole and a mounting cavity in the middle, the pressure measuring section connecting to the mounting cavity having a fixing groove, the mounting cavity being used to install an oil pressure sensor, the pressure measuring end of the oil pressure sensor passing through the pressure measuring hole, the fixing groove being used to insert a fixing component to fix the oil pressure sensor in the pressure measuring section, the flange connecting to the oil inlet pipe having a first mounting cylinder and a second mounting cylinder, an oil guide hole being provided between the first mounting cylinder and the second mounting cylinder, the first mounting cylinder having a flow control valve snapped into it, and the second mounting cylinder having a connecting valve passing through it, the connecting valve being connected to a pressure regulating valve.

[0020] By adopting the above technical solution: the oil pressure sensor is set at the end of the fuel outlet pipe, which can monitor the fuel pressure in the fuel outlet pipe. When the fuel pressure in the fuel outlet pipe is insufficient, the control box adjusts the speed of the fuel pump, thereby increasing the pumping volume of the fuel pump and pressurizing the fuel in the fuel outlet pipe. At the same time, the oil pressure sensor is fixed on the pressure measuring part at the end of the fuel outlet pipe and is fixedly installed in the mounting cavity by passing through the fixing groove with a clamp, which facilitates the installation and removal of the oil pressure sensor. In addition, the flange connecting the fuel inlet pipe and the first and second mounting cylinders allow the flow control valve and pressure regulating valve to be quickly installed on the flange, improving the convenience of fuel pump assembly assembly.

[0021] The aforementioned automotive fuel pump assembly can be further configured as follows: a plurality of first mounting plates extend outward from the end of the first mounting cylinder; the first mounting plates have first mounting slots; the ends of the first mounting plates have obliquely distributed first guide grooves; the first mounting cylinder engages with the flow control valve through the first mounting slots; a plurality of second mounting plates extend outward from the second mounting cylinder; the second mounting plates have second mounting slots; the second mounting plates engage with the pressure regulating valve through the second mounting slots; the ends of the second mounting plates have obliquely distributed second guide grooves; the ends of the first mounting cylinder have a plurality of first positioning notches; and the second mounting cylinder has a plurality of second positioning notches.

[0022] By adopting the above technical solution: the first mounting slot of the first mounting plate can cooperate with the snap-fit ​​on the outer surface of the flow control valve; the first guide groove of the first mounting plate at the first mounting port can guide the flow control valve, allowing the flow control valve to quickly snap into the first mounting port, thus achieving rapid installation of the flow control valve; similarly, the second guide groove can guide the installation of the connecting valve, allowing the snap-fit ​​on the outer periphery of the connecting valve to snap into the second slot of the second mounting plate, thus achieving rapid installation of the connecting valve, improving the speed of assembly of the automotive fuel pump assembly; when the flow control valve is installed into the first mounting cylinder, the first positioning notch can position the flow control valve, improving the accuracy of the connection between the flow control valve and the flange, and can also cooperate with the first mounting plate to provide circumferential and radial limiting for the flow control valve, improving the stability of the connection between the flow control valve and the flange; at the same time, the second positioning notch of the second mounting cylinder and the first positioning notch can also provide circumferential and radial limiting for the pressure regulating valve, improving the accuracy and stability of the connection between the flow control valve, the pressure regulating valve and the flange.

[0023] The aforementioned automotive fuel pump assembly can be further configured as follows: an assembly block extends outward from the periphery of the flange, a fixing buckle is provided on the end face of the flange, several fixing slots are provided at the bottom of the fixing buckle, and fixing holes are provided through the flange through the fixing buckle.

[0024] By adopting the above technical solution, the assembly block at the edge of the flange facilitates the installation of the fuel pump assembly in the designated position and is secured by a fixing clip. At the same time, the flange can be quickly removed from the installation position during disassembly, making the installation and disassembly of the fuel pump assembly more convenient and accurate, and improving assembly efficiency.

[0025] The aforementioned automotive fuel pump assembly can be further configured such that: a plurality of connecting cylinders are provided on the side of the flange near the fuel pump, a connecting rod passes through the connecting cylinders, and a plurality of connecting holes are provided around the fuel reservoir, with the connecting rod passing through the connecting holes and slidingly engaging with the fuel reservoir.

[0026] By adopting the above technical solution, the flange is slidably connected to the oil reservoir through the connecting rod and the connecting hole, which can adjust the distance between the flange and the oil reservoir. After adjustment, the connecting rod can be fixed relative to the oil reservoir by tightening the nut, which ensures the overall stability of the fuel pump assembly during operation. At the same time, it facilitates the quick installation and disassembly of the flange and improves maintenance efficiency.

[0027] The beneficial effects of this utility model are as follows: The pressure regulating valve is installed on the oil reservoir. When fuel enters from the inlet pipe, it is delivered to the pressure regulating valve through the inlet bend. When the fuel pressure in the inlet pipe is high, the valve body connects to the oil tank, venting the overpressured fuel into the oil tank and reducing the inlet pressure. When the pressure in the oil tank is high, the pressure regulating valve connects to the valve cylinder, allowing the overpressured fuel in the oil tank to be vented into the valve cylinder, thereby reducing the fuel pressure in the oil tank. Compared with the traditional method of installing the pressure regulating valve on the flange, the pressure regulating valve installed on the oil reservoir can regulate the inlet pressure and the pressure in the oil tank.

[0028] In addition, a control box is installed on the flange. The oil pump control board inside the control box adjusts the speed of the oil pump according to the real-time operating conditions of the engine, thereby controlling the amount of oil pumped by the automotive fuel pump assembly. Compared with the traditional method of directly controlling the oil pump through an electrical plug, the oil pump control board controls the speed of the oil pump more precisely through pulse width modulation current. At the same time, the flow control valve, pressure regulating valve and oil pressure sensor can be quickly installed on the flange, improving the convenience of assembling the automotive fuel pump assembly.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the automotive fuel pump assembly of this utility model; Figure 2 This is a schematic diagram of the flange of this utility model; Figure 3 This is a schematic diagram of the flange of this utility model from another perspective; Figure 4 This is a schematic diagram of the structure of the oil pump of this utility model; Figure 5 This is a schematic diagram of the oil pump of this utility model from another perspective. Figure 6 This is a schematic diagram of the structure of the oil storage tank of this utility model; Figure 7 This is a schematic diagram showing the disassembled oil storage cylinder of this utility model; Figure 8 This is a schematic diagram of the pressure regulating valve of this utility model; Figure 9 This is a schematic diagram showing the disassembled pressure regulating valve of this utility model; Figure 10 This is a schematic diagram of the oil level indicator of this utility model; Figure 11 This is a split diagram of the oil level indicator of this utility model; Labeling notes: Flange 1, Inlet pipe 11, Outlet pipe 12, Second outlet connecting pipe 121, Sealing boss 122, Pressure measuring part 123, Pressure measuring hole 124, Mounting cavity 125, Fixing groove 126, Electrical plug 13, Second connector 131, Control box 14, Oil pump control board 141, First connector 142, First mounting cylinder 15, Oil guide hole 151, First mounting plate 152, First mounting bayonet 153, First guide groove 154, First positioning notch 155, Second mounting cylinder 16, Second mounting plate 161, Second mounting bayonet 162, Second guide groove 163, Second positioning notch 164, Assembly block 17, Fixing buckle 18, Fixing slot 181, Fixing hole 182, Connecting cylinder 19. Connecting rod 191, oil pump 2, pump body 21, oil outlet end cap 22, first oil outlet connecting pipe 221, sealing convex ring 222, oil pump electrical socket 223, oil inlet end cap 23, oil inlet 231, oil storage tank 3, first mounting cavity 31, first mounting pipe 311, limit plate 312, second mounting cavity 32, mounting buckle 321, pressure regulating valve 33, valve cylinder 331, valve body 332, snap-fit ​​cylinder 333, snap-fit ​​groove 334, snap-fit ​​clamp 335, pressure regulating pipe 336, sealing convex ring 337, housing 34, cover plate 35, stop plate 351, third mounting cavity 352, connecting hole 36, oil level indicator 4, indicator frame 41, resistance element 411, indicator arm 42, indicator contact 421, float support rod 43, float 44. Detailed Implementation

[0031] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] Automotive fuel pump assembly, such as Figures 1 to 11As shown, the system includes a flange 1, an oil pump 2, an oil reservoir 3, and an oil level indicator 4. The flange 1 is equipped with an oil inlet pipe 11, an oil outlet pipe 12, and an electrical plug 13. The oil level indicator 4 is mounted on the oil reservoir 3. The oil reservoir 3 has a first mounting cavity 31 and a second mounting cavity 32. The oil pump 2 passes through the first mounting cavity 31, and the second mounting cavity 32 is equipped with a pressure regulating valve 33. The flange 1 end face is also equipped with a control box 14, which contains an oil pump control board 141 that is electrically connected to the electrical plug 13. The pressure regulating valve 33 is installed on the oil reservoir 3. Fuel is input into the oil reservoir 3 from the oil inlet pipe 11. When the inlet pressure is high, the pressure regulating valve 33 can release the overpressured fuel into the oil tank to avoid excessive inlet pressure. When the oil pressure in the oil tank is high, the pressure regulating valve 33 can also reduce the pressure in the oil tank, thus achieving dual regulation of the oil tank pressure and the inlet pressure. At the same time, the electrical signal is transmitted to the oil pump control board 141 in the control box 14 through the electrical plug 13. After the oil pump control board 141 recognizes and processes the electrical signal, it adjusts the speed of the oil pump 2, thereby adjusting the pumping volume of the oil pump 2. Compared with the traditional method of directly controlling the oil pump 2 through the electrical plug 13, this application directly sets the control box 14 on the flange 1, which can adjust the pumping volume of the fuel pump in real time according to the actual working conditions of the engine, making the pumping volume adjustment more convenient.

[0033] like Figure 2 , Figure 3 As shown, the flange 1 is connected to the oil outlet pipe 12 and is also provided with a pressure measuring part 123. The pressure measuring part 123 has a pressure measuring hole 124 and a mounting cavity 125 in the middle. The pressure measuring part 123 is connected to the mounting cavity 125 and has a fixing groove 126. The mounting cavity 125 is used to install the oil pressure sensor. The pressure measuring end of the oil pressure sensor passes through the pressure measuring hole 124. The fixing groove 126 is used to insert a fixing component to fix the oil pressure sensor in the pressure measuring part 123. The flange 1 is connected to the oil inlet pipe 11 and is provided with a first mounting cylinder 15 and a second mounting cylinder 16. An oil guide hole 151 is opened between the first mounting cylinder 15 and the second mounting cylinder 16. The first mounting cylinder 15 is clamped with a flow control valve. The second mounting cylinder 16 is provided with a connecting valve. The connecting valve is connected to the pressure regulating valve 33. The oil pressure sensor is located at the end of the fuel outlet pipe 12 and can monitor the fuel pressure in the fuel outlet pipe 12. When the fuel pressure in the fuel outlet pipe 12 is insufficient, the control box 14 adjusts the speed of the fuel pump 2, thereby increasing the pumping volume of the fuel pump 2 and pressurizing the fuel in the fuel outlet pipe 12. At the same time, the oil pressure sensor is fixed on the pressure measuring part 123 at the end of the fuel outlet pipe 12 and is fixedly installed in the mounting cavity 125 by passing through the fixing groove 126 through the clamp, which facilitates the installation and removal of the oil pressure sensor. In addition, the first mounting cylinder 15 and the second mounting cylinder 16 connected to the fuel inlet pipe 11 of the flange 1 enable the flow control valve and the pressure regulating valve 33 to be quickly installed on the flange 1, which improves the convenience of the fuel pump assembly assembly.

[0034] A first connector 142 extends from the control box 14 to the other side of the flange 1, and a second connector 131 extends from the electrical plug 13 to the other side of the flange 1. Several first mounting plates 152 extend outward from the end of the first mounting cylinder 15. The first mounting plates 152 have first mounting slots 153 and first guide grooves 154 that are obliquely distributed at the end of the first mounting plates 152. The first mounting cylinder 15 is engaged with the flow control valve through the first mounting slots 153. Several second mounting plates 161 extend outward from the second mounting cylinder 16. The second mounting plates 161 have second mounting slots 162 and are engaged with the pressure regulating valve 33 through the second mounting slots 162. The second mounting plates 161 have second guide grooves 163 that are obliquely distributed at the end of the second mounting plates 161. Several first positioning notches 155 are provided at the end of the first mounting cylinder 15, and several second positioning notches 164 are provided at the end of the second mounting cylinder 16. The first mounting slot 153 of the first mounting plate 152 can engage with the snap-fit ​​on the outer surface of the flow control valve. The first guide groove 154 at the first mounting port of the first mounting plate 152 can guide the flow control valve, allowing it to quickly snap into the first mounting port, thus achieving rapid installation of the flow control valve. Similarly, the second guide groove 163 can guide the installation of the connecting valve, allowing the snap-fit ​​on the outer periphery of the connecting valve to snap into the second slot of the second mounting plate 161, thus achieving rapid installation of the connecting valve. This improves the speed of assembling the automotive fuel pump assembly. When the flow control valve... When installed inside the first mounting cylinder 15, the first positioning notch 155 can position the flow control valve, improving the accuracy of the connection between the flow control valve and the flange 1. At the same time, it can cooperate with the first mounting plate 152 to limit the flow control valve circumferentially and radially, improving the stability of the connection between the flow control valve and the flange 1. Meanwhile, the second positioning notch 164 of the second mounting cylinder 16 and the first positioning notch 155 can also limit the pressure regulating valve 33 circumferentially and radially, improving the accuracy and stability of the connection between the flow control valve, the pressure regulating valve 33 and the flange 1.

[0035] The flange 1 has an assembly block 17 extending outward from its perimeter. A fixing clip 18 is also provided on the end face of the flange 1. The fixing clip 18 has several fixing slots 181 at its bottom and fixing holes 182 extending through the flange 1. The assembly block 17 at the edge of the flange 1 facilitates the installation of the fuel pump assembly in a designated position and is secured by the fixing clip 18. Simultaneously, it allows for quick removal of the flange 1 from its installation position during disassembly, making the installation and disassembly of the fuel pump assembly more convenient and accurate, and improving assembly efficiency.

[0036] like Figure 4 , Figure 5As shown, the oil pump 2 includes a pump body 21, an oil outlet end cap 22, and an oil inlet end cap 23. The oil inlet end cap 23 is connected to the pump body 21 and has an oil inlet 231. The oil outlet end cap 22 is connected to the pump body 21 and has a first oil outlet connecting pipe 221 and an oil pump electrical connector 223. The oil pump electrical connector 223 is electrically connected to a first connector 142 via an electric wire. When the pump body 21 operates, it draws fuel from the oil inlet 231 and discharges it from the first oil outlet connecting pipe 221. The vehicle power supply can simultaneously supply power to the fuel pump 2, pressure regulating valve 33 and other electrical devices through the power plug 13. The first connector 142 of the control box 14 is connected to the fuel pump power plug 223 on the fuel pump 2 to supply power and control the fuel pump 2. The second power plug 131 is electrically connected to the pressure regulating valve 33 to supply power and control the pressure regulating valve 33. When the fuel pump 2 is running, the rotor inside the pump body 21 rotates, and the fuel inlet 231 on the fuel inlet end cap 23 draws fuel from the fuel tank and pumps it out from the first fuel outlet connection pipe 221. The electrical connection between the pump body 21 and the control box 14 is more stable, and the fuel pump control board 141 controls the fuel pump 2 more quickly.

[0037] like Figure 3 , Figure 5 As shown, the flange 1 is connected to the oil outlet pipe 12 and is provided with a second oil outlet connecting pipe 121. The second oil outlet connecting pipe 121 is provided with a plurality of sealing bosses 122. The end of the first oil outlet connecting pipe 221 is provided with a sealing ring 222. The sealing ring 222 protrudes from the first oil outlet connecting pipe 221. The first oil outlet connecting pipe 221 and the second oil outlet connecting pipe 121 are connected through an oil outlet bend. The first oil outlet connecting pipe 221 on the oil outlet end cap 22 of the oil pump 2 and the second oil outlet connecting pipe 121 of the oil outlet pipe 12 are connected by an oil outlet bend. The fuel pumped by the oil pump 2 can be quickly pumped out from the oil outlet pipe 12. The sealing convex ring 222 at the end of the first oil outlet connecting pipe 221 protrudes relative to the outer surface of the first oil outlet connecting pipe 221 and can be press-fitted with the inner wall of the oil outlet bend. The sealing convex ring 222 of the second oil outlet connecting pipe 121 can also be press-fitted with the inner wall of the oil outlet bend. The fuel pumped by the oil pump 2 can be completely pumped out from the oil outlet pipe 12 to prevent fuel leakage.

[0038] like Figure 3 , Figure 6 As shown, flange 1 has several connecting cylinders 19 near the oil pump 2, and connecting rods 191 pass through the connecting cylinders 19. Oil reservoir 3 has several connecting holes 36 circumferentially arranged, and the connecting rods 191 pass through the connecting holes 36 and slide in engagement with the oil reservoir 3. Flange 1 is slidably connected to the oil reservoir 3 via the connecting rods 191 and the connecting holes 36, allowing adjustment of the distance between flange 1 and the oil reservoir. After adjustment, tightening the nuts fixes the connecting rods 191 relative to the oil reservoir, ensuring the overall stability of the fuel pump assembly during operation. This also facilitates quick installation and removal of flange 1, improving maintenance efficiency.

[0039] like Figure 6 , Figure 7 As shown, the oil reservoir 3 includes a housing 34 and a cover plate 35. A first mounting tube 311 is provided inside the first mounting cavity 31. Several limiting plates 312 extend from the end of the first mounting tube 311 towards the center. Several mounting buckles 321 are provided on the inner wall of the second mounting cavity 32. The mounting buckles 321 are used to engage the pressure regulating valve 33 within the second mounting cavity 32. The cover plate 35 is provided with a stop plate 351, which, together with the inner wall of the oil reservoir 3, forms a third mounting cavity 352. The cover plate 35 covers the housing 34. The oil pump 2 passes through the first mounting tube 311 in the first mounting cavity 31 and is limited and fixed within the first mounting cavity 31 by the limiting plates 312. Simultaneously, when the pressure regulating valve 33 passes through the second mounting cavity 32, the mounting buckles 321 engage with the outer circumferential surface of the pressure regulating valve 33, achieving rapid fixation of the pressure regulating valve 33.

[0040] like Figure 8 , Figure 9 As shown, the pressure regulating valve 33 includes a valve cylinder 331 and a valve body 332. The valve cylinder 331 is inserted into the second mounting cavity 32. A snap-fit ​​cylinder 333 is provided at the end of the valve cylinder 331. A snap-fit ​​groove 334 is provided on the side wall of the snap-fit ​​cylinder 333. The valve body 332 is snapped into the snap-fit ​​cylinder 333. A snap-fit ​​clamp 335 is inserted into the snap-fit ​​groove 334. The snap-fit ​​clamp 335 is used to snap the valve body 332 into the valve cylinder 331. A pressure regulating pipe 336 is provided on the side wall of the snap-fit ​​cylinder 333. Several sealing protrusions 337 are provided on the outer periphery of the pressure regulating pipe 336. The pressure regulating pipe 336 is connected to the oil inlet pipe 11 through an oil inlet bend. The valve cylinder 331 is engaged and fixed within the second mounting cavity 32 by the mounting buckle 321. The valve body 332 is inserted into the middle of the locking cylinder 333, and then the locking clamp 335 is inserted from the locking groove 334 into the locking cylinder 333, thus assembling and fixing the pressure regulating valve 33. The pressure regulating pipe 336 connects to the valve cylinder 331 and is connected to the oil inlet pipe 11 through the oil inlet bend. Fuel is input from the oil inlet pipe 11 into the pressure regulating pipe 336, and then passes through the valve. The fuel flows into the fuel tank through cylinder 331. The sealing ring 337 can improve the sealing performance of the connection between the fuel inlet bend and the pressure regulating pipe 336, preventing fuel leakage. At the same time, when the fuel pressure in the fuel inlet pipe 11 and the pressure regulating valve 33 is high, the valve body 332 connects to the fuel tank, releasing the overpressured fuel into the fuel tank. Also, when the fuel pressure in the fuel tank is high, some fuel can be input into the valve cylinder 331, thereby reducing the fuel pressure in the fuel tank and achieving rapid regulation of the fuel pressure in the fuel tank.

[0041] like Figure 10 , Figure 11As shown, the fuel level indicator 4 is installed in the third mounting cavity 352. The fuel level indicator 4 includes an indicator frame 41, an indicator arm 42, a float support rod 43, and a float 44. A resistor 411 is provided inside the indicator frame 41. The indicator arm 42 is rotatably engaged with the indicator frame 41. One end of the float support rod 43 is linked to the indicator arm 42, and the other end is fixedly connected to the float 44. The indicator arm 42 is provided with an indicator contact 421. The indicator frame 41 passes through the third mounting cavity 352 and is engaged with the inner wall of the fuel reservoir 3. The float 44 floats on the fuel surface. The indicator arm 42, which is attached to the float support rod 43, rotates around the hinge point between it and the indicator frame 41. The indicator contact 421 rotates relative to the resistor 411, adjusting the resistance to identify the fuel level in the fuel tank.

[0042] The beneficial effects of this embodiment are as follows: The pressure regulating valve 33 is installed on the oil reservoir. When fuel enters from the inlet pipe 11, it is delivered to the pressure regulating valve 33 through the inlet bend. When the fuel pressure in the inlet pipe 11 is high, the valve body 332 connects to the oil tank, discharging the overpressured fuel into the oil tank and reducing the inlet pressure. When the pressure in the oil tank is high, the pressure regulating valve 33 connects to the valve cylinder 331, allowing the overpressured fuel in the oil tank to be discharged into the valve cylinder 331, thereby reducing the fuel pressure in the oil tank. Compared with the traditional method of installing the pressure regulating valve 33 on the flange 1, the pressure regulating valve 33 is installed on the oil reservoir, which can regulate the inlet pressure and the pressure in the oil tank.

[0043] In addition, a control box 14 is installed on the flange 1. The oil pump control board 141 inside the control box 14 adjusts the speed of the oil pump 2 according to the real-time operating conditions of the engine, thereby controlling the amount of oil pumped by the automotive fuel pump assembly. Compared with the traditional method of directly controlling the oil pump 2 through the electrical plug 13, the oil pump control board 141 controls the speed of the oil pump 2 more accurately through pulse width modulation current. At the same time, the flow control valve, pressure regulating valve 33 and oil pressure sensor can be quickly installed on the flange 1, which improves the convenience of assembling the automotive fuel pump assembly.

[0044] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An automotive fuel pump assembly, comprising a flange, a fuel pump, a fuel reservoir, and a fuel level indicator, wherein the flange is provided with an inlet pipe, an outlet pipe, and an electrical connector, and the fuel level indicator is disposed on the fuel reservoir, characterized in that: The oil storage tank has a first mounting cavity and a second mounting cavity. The oil pump is installed in the first mounting cavity, and a pressure regulating valve is installed in the second mounting cavity. A control box is also provided on the flange end face. The control box contains an oil pump control board that is electrically connected to the power plug. The oil pump control board can control the oil pump operating speed and adjust the pump oil volume.

2. The automotive fuel pump assembly of claim 1, wherein: The oil storage tank includes a box and a cover plate. A first installation tube is provided in the first installation cavity. Several limiting plates extend from the end of the first installation tube toward the center. Several installation buckles are provided on the inner wall of the second installation cavity. The installation buckles are used to engage the pressure regulating valve in the second installation cavity.

3. The automotive fuel pump assembly of claim 2, wherein: The cover plate is provided with a baffle plate, which forms a third mounting cavity with the inner wall of the oil reservoir. The oil level indicator is installed in the third mounting cavity. The oil level indicator includes an indicator frame, an indicator arm, a float support rod, and a float. The indicator frame is provided with a resistor. The indicator arm is rotatably connected to the indicator frame. One end of the float support rod is linked to the indicator arm, and the other end is fixedly connected to the float. The indicator arm is provided with an indicator contact piece.

4. The automotive fuel pump assembly of claim 3, wherein: The pressure regulating valve includes a valve cylinder and a valve body. The valve cylinder is inserted into the second mounting cavity. A snap-fit ​​sleeve is provided at the end of the valve cylinder. A snap-fit ​​groove is provided on the side wall of the snap-fit ​​sleeve. The valve body is snapped into the snap-fit ​​sleeve. A snap-fit ​​clamp is inserted into the snap-fit ​​groove. The snap-fit ​​clamp is used to snap the valve body and the valve cylinder together. A pressure regulating pipe is provided on the side wall of the snap-fit ​​sleeve. Several sealing protrusions are provided on the outer circumference of the pressure regulating pipe. The pressure regulating pipe is connected to the oil inlet pipe through an oil inlet bend.

5. The automotive fuel pump assembly of any one of claims 1 to 4, wherein: The control box extends to the other side of the flange with a first connector, and the electrical plug extends to the other side of the flange with a second connector. The oil pump includes a pump body, an oil outlet cover, and an oil inlet cover. The oil inlet cover is connected to the pump body and has an oil inlet. The oil outlet cover is connected to the pump body and has a first oil outlet connecting pipe and an oil pump electrical connector. The oil pump electrical connector is electrically connected to the first connector via an electrical wire. When the pump body operates, it draws fuel from the oil inlet and discharges it from the first oil outlet connecting pipe.

6. The automotive fuel pump assembly according to claim 5, characterized in that: The flange connecting oil outlet pipe is provided with a second oil outlet connecting pipe. The second oil outlet connecting pipe is provided with several sealing bosses. The end of the first oil outlet connecting pipe is provided with a sealing ring. The sealing ring protrudes from the first oil outlet connecting pipe. The first oil outlet connecting pipe and the second oil outlet connecting pipe are connected by an oil outlet bend.

7. The automotive fuel pump assembly of claim 6, wherein: The flange connecting to the oil outlet pipe is also provided with a pressure measuring section. The pressure measuring section has a pressure measuring hole and a mounting cavity in the middle. The pressure measuring section connects to the mounting cavity and has a fixing groove. The mounting cavity is used to install an oil pressure sensor. The pressure measuring end of the oil pressure sensor passes through the pressure measuring hole. The fixing groove is used to insert a fixing component to fix the oil pressure sensor in the pressure measuring section. The flange connecting to the oil inlet pipe is provided with a first mounting cylinder and a second mounting cylinder. An oil guide hole is opened between the first mounting cylinder and the second mounting cylinder. A flow control valve is snapped into the first mounting cylinder. A connecting valve passes through the second mounting cylinder. The connecting valve is connected to a pressure regulating valve.

8. The automotive fuel pump assembly of claim 7, wherein: The first mounting cylinder has several first mounting plates extending outward from its end. Each first mounting plate has a first mounting slot and a first guide groove that is obliquely distributed at its end. The first mounting cylinder is engaged with the flow control valve through the first mounting slot. The second mounting cylinder has several second mounting plates extending outward from its end. Each second mounting plate has a second mounting slot and is engaged with the pressure regulating valve through the second mounting slot. Each second mounting plate has a second guide groove that is obliquely distributed at its end. The first mounting cylinder has several first positioning notches at its end, and the second mounting cylinder has several second positioning notches.

9. The automotive fuel pump assembly of claim 8, wherein: The flange has an assembly block extending outward from its periphery, and a fixing buckle is also provided on the end face of the flange. The fixing buckle has several fixing slots at its bottom and a fixing hole through the flange.

10. The automotive fuel pump assembly of claim 9, wherein: The flange is provided with several connecting cylinders on the side near the oil pump. A connecting rod is inserted inside the connecting cylinder. The oil storage tank is provided with several connecting holes around its circumference. The connecting rod passes through the connecting holes and slides with the oil storage tank.

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