Fuel tank of vehicle

Abstract

FIELD: mechanical engineering.SUBSTANCE: fuel tank of a motor vehicle comprises a tank body (1), a filler neck (2) installed in an opening (3) of the tank body (1) closed by a removable flange (4), a fuel intake tube (5) and transverse partitions (6) fixed inside the tank body (1), consisting of metal plates (7), on the outer surfaces of which polyurethane foam plates (8) are fixed, and to the inner walls of the tank body (1) at a height of 15…20 mm from the upper end of the tube (5) a multi-hole tray (9) is fixed, on which a polyurethane foam plate (10) is laid. Inside the body (1) of the tank there are longitudinal partitions (11), made in the form of metal plates (12) with polyurethane foam plates (13) fixed to them on the outer sides, which together with the transverse partitions (6) are assembled into a suspended modular-sectional package (14), placed on a pallet (9), suspended by means of a rod (15) to the upper and lower rings (16) and (17), and fixed to the rod (15) by means of a nut (18), bolt (19) and a locking ring (20). The metal plates (7) and (12) are structurally identical to each other, have openings (21) and grooves (22), the width of which is greater than the thickness of the metal plates (7) and (12), the depth of the grooves (22) is equal to half the height of the metal plates (7) and (12), and the polyurethane plates (8) and (13) are identical in configuration to the metal plates (7) and (12), the length of which is selected to fit the internal dimensions of the body (1) of the tank of a specific brand of vehicle.EFFECT: increase in the efficiency of using the fuel tank of motor vehicles is achieved through a combination of technical means for reducing the wave movement of fuel and technical means for cleaning the fuel in the tank body using a modular-sectional package.2 cl, 1 dwg

Description

[0001] The invention relates to mechanical engineering and can be used in the power supply system of internal combustion engines of motor vehicles.

[0002] Currently, to eliminate the wave movement of fuel in the tank when vehicles are moving on various types of roads, which causes water hammer and the “breathing” effect, transverse and horizontal partitions are placed in the fuel tank.

[0003] The author was faced with the task of developing a simple-to-implement, technically feasible, reliable and efficient design for a vehicle fuel tank based on domestically produced products and materials, ensuring the elimination of fuel hydraulic shocks against the longitudinal and transverse walls of the tank body and, as a result, the elimination of the possible occurrence of electrostatic voltage, as well as a reduction in the ingress of dust and moisture from the atmospheric air into the tank due to the vacuum in the tank cavity due to its "breathing" effect.

[0004] When reviewing sources of patent and scientific and technical information, technical solutions were identified that make it possible to assess the possibility of using them in the claimed fuel tank.

[0005] A fuel tank for a motor vehicle is known [RU Patent for PM No. 13027, IPC B 65 D 90 / 00. Flat fuel tank / I.V. Berezina, T.I. Berezina, V.S. Korobchenko, N.F. Strokov. - Application No. 99117854 / 20 dated 16.08.1999; Published 20.03.2000, Bulletin No. 8], comprising a housing, inside which separate transverse partitions are installed, secured with the help of bent tabs to the inner walls of the tank housing.

[0006] The disadvantage of this fuel tank is the absence of longitudinal partitions inside the tank body, which means that when turning and driving vehicles on slopes and roads with a transverse slope, a wave movement of fuel occurs from one side wall of the tank body to the other, causing negative phenomena: water hammer of fuel on the side walls of the tank body and the “breathing” effect of the tank, as well as difficult access to maintenance and repair of the partitions.

[0007] A fuel tank for a motor vehicle is known [Ukhanov A.P. Design of automobiles and tractors: a textbook for universities / A.P. Ukhanov, D.A. Ukhanov. - St. Petersburg: Lan, 2023. - P. 37, Fig. 19], containing a metal tank body, a filler neck with a removable cap, a fuel intake tube and transverse metal partitions rigidly fixed to the inner walls of the tank body.

[0008] A disadvantage of this fuel tank is the lack of longitudinal baffles inside the tank body. This means that when turning and driving on slopes and roads with a transverse incline, a wave-like movement of fuel from one side of the tank body to the other occurs, causing negative phenomena such as fuel hydraulic shock against the side walls of the tank body and a "breathing" effect of the tank. Furthermore, the baffles are not removable, but rigidly attached to the inner walls of the tank, making them difficult to inspect during maintenance or replacement.

[0009] The closest in technical essence and taken as a prototype is the fuel tank of a motor vehicle [RU Patent No. 2822344, IPC B 65 D 90 / 00, B 60 K 15 / 07. Fuel tank of a motor vehicle / A.P. Ukhanov. - Application No. 2024102644 dated 02.02.2024; Published 04.07.2024, Bull.No. 19], comprising a tank body, a filler neck installed in the opening of the tank body closed by a removable flange, a fuel intake tube and metal vertical partitions fixed inside the tank body, located across the tank body, made in the form of sections, polyurethane foam plates with a thickness of 5 ... 6 mm and a porosity of no more than 60 pores per linear inch are fixed to the outer surfaces of the vertical partitions, and a tray in the form of a corrosion-resistant metal mesh mesh is rigidly fixed to the inner walls of the tank body at a height of 15 ... 20 mm from the upper end of the fuel intake tube, on which a polyurethane foam plate with a thickness of 10 ... 12 mm and a porosity of no more than 40 pores per linear inch is laid on the side of the filler neck, with the formation of a settling cavity between the tray and the bottom of the tank body.

[0010] The disadvantage of this fuel tank is the absence of longitudinal partitions inside the tank body, which means that when turning and driving vehicles on slopes and roads with a transverse slope, a wave movement of fuel occurs from one side wall of the tank body to the other, causing the appearance of negative phenomena: water hammer of fuel on the side walls of the tank body and the “breathing” effect of the tank.

[0011] The technical result of the invention is to increase the efficiency of using the fuel tank of motor vehicles by combining technical means for reducing the wave movement of fuel and technical means for cleaning the fuel in the tank body by assembling longitudinal and transverse partitions into one modular-sectional package.

[0012] The specified technical result is achieved due to the fact that the fuel tank of a motor vehicle contains a tank body, a filler neck installed in the opening of the tank body closed by a removable flange, a fuel intake tube and vertical transverse partitions fixed inside the tank body, made in the form of sections and consisting of metal plates, on the outer surfaces of which polyurethane foam plates with a thickness of 5 ... 6 mm and a porosity of no more than 60 pores per linear inch are fixed, and to the inner walls of the tank body at a height of 15 ... 20 mm from the upper end of the fuel intake tube a pallet in the form of a metal mesh is rigidly fixed, on which, from the side of the filler neck, a polyurethane foam plate with a thickness of 10 ... 12 mm and a porosity of no more than 40 pores per linear inch is laid with the formation of a settling cavity between the pallet and the bottom of the tank body, according to According to the invention, there are vertical longitudinal partitions inside the fuel tank body,made in the form of metal plates with polyurethane foam plates fixed to them on the outer sides with a thickness of 5...6 mm and a porosity of no more than 60 pores per linear inch, which together with the transverse partitions are assembled into a suspended modular-sectional package consisting of rectangular sections placed on a metal multi-hole tray with a thickness of 1...1.5 mm, suspended by a round metal rod to the upper and lower rings welded to the inner walls of the fuel tank body, the multi-hole tray is fixed to the rod with a fastening connection consisting of a nut, a bolt with an axial hole for the free passage of the rod and a locking ring installed in the annular groove of the rod, while the metal plates of the transverse and longitudinal partitions are structurally identical to each other and are made with a thickness of 0.8...1 mm and a height of 1 / 2 to 2 / 3 of the height of the fuel tank body, have holes with a diameter 3…5 mm and grooves,the width of which is greater than the thickness of the metal plates by 0.1...0.2 mm, and the depth of the grooves is equal to half the height of the metal plate, and the polyurethane plates are identical in configuration to the metal plates of the transverse and longitudinal partitions, and the length of which is selected to suit the internal dimensions of the fuel tank body of a particular brand of vehicle.

[0013] Fig. 1 shows a diagram of a fuel tank of a motor vehicle.

[0014] The fuel tank of a motor vehicle comprises a tank body 1, a filler neck 2 installed in an opening 3 of the tank body 1 closed by a removable flange 4, a fuel intake tube 5 and vertical transverse partitions 6 fixed inside the tank body 1, made in the form of sections consisting of metal plates 7, on the outer surfaces of which polyurethane foam plates 8 with a thickness of 5...6 mm and a porosity of no more than 60 pores per linear inch are fixed, and to the inner walls of the tank body 1 at a height of 15...20 mm from the upper end of the fuel intake tube 5 a tray 9 in the form of a metal mesh is rigidly fixed, on which from the side of the filler neck 2 a polyurethane foam plate 10 with a thickness of 10...12 mm and a porosity of no more than 40 pores per linear inch is laid the formation of a settling cavity between the tray 9 and the bottom of the body 1 of the fuel tank, while inside the body 1 of the fuel tank there are vertical longitudinal partitions 11,made in the form of metal plates 12 with polyurethane foam plates 13 fixed to them on the outer sides, with a thickness of 5...6 mm and a porosity of no more than 60 pores per linear inch, which together with transverse partitions 6 are assembled into a suspended modular-sectional package 14, consisting of rectangular sections placed on a metal multi-hole tray 9 with a thickness of 1...1.5 mm, suspended with the help of a round metal rod 15 to the upper and lower rings 16 and 17, welded to the inner walls of the body 1 of the fuel tank, the multi-hole tray 9 is fixed on the rod 15 with the help of a fastening connection, consisting of a nut 18, a bolt 19 with an axial hole for the free passage of the rod 15 and a locking ring 20, installed in the annular groove of the rod 15, metal plates 7 and 12 transverse and longitudinal partitions 6 and 11 are structurally identical to each other and are made with a thickness of 0.8...1 mm and a height from 1 / 2 to 2 / 3 of the height of the body 1 of the fuel tank,have openings 21 with a diameter of 3...5 mm and grooves 22, the width of which is greater than the thickness of the metal plates 7 and 12 by 0.1...0.2 mm, and the depth of the grooves 22 is equal to half the height of the metal plates 7 and 12, and the polyurethane plates 8 and 13 are identical in configuration to the metal plates 7 and 12 of the transverse and longitudinal partitions 6 and 11, and the length of which is selected for the internal dimensions of the body 1 of the fuel tank of a specific brand of vehicle.

[0015] The fuel tank of a motor vehicle operates as follows. When a motor vehicle is moving on roads with complex terrain (ascents, descents, slopes, hillsides, potholes, etc.), the wave movement of fuel in the tank body 1 is not only damped by the surface of the transverse and longitudinal partitions 6 and 11, but also when the wave impact of the fuel on the partitions 6 and 11 occurs, the fuel is filtered as it passes through the pores of the double-sided polyurethane foam plates 8 and 13, each with a thickness of 5 ... 6 mm (the total thickness of the plates 8 and 13 is 10 ... 12 mm) with the number of pores per linear inch of no more than 60 (60 ppi - pores per inch) and the radial holes of the partitions 6 and 11. In this case, contaminant particles larger than the pore size of the polyurethane foam remain on the outer surface of the plates 8 and 13 of the partitions 6 and 11.During fuel tank maintenance, plates 8 and 13 are removed, pulled out of tank body 1 through opening 3, closed by removable flange 4, and washed with gasoline or diesel fuel in a bath using the "rinsing" method for subsequent installation in tank body 1. If necessary, the "old" polyurethane foam plates are replaced with new ones.

[0016] The width (α) and depth of the groove 22 of the metal plates 7 and 12 of the transverse and longitudinal partitions 6 and 11 are selected from considerations of ease of assembly and imparting rigidity to the suspended modular-sectional package 14. The number of transverse and longitudinal partitions 6 and 11 depends on the overall dimensions of the body 1 of the fuel tank.

[0017] The proposed fuel tank can be installed not only on motor vehicles (cars, tractors, vans, etc.), but also on other ground transport equipment (combine harvesters, forklifts, gas trucks, motor graders, watering and sweeping machines, etc.) operating in dusty atmospheric conditions.

[0018] The vehicle fuel tank is technically feasible. It is manufactured using domestically produced components: anti-corrosion metal plates for the bulkheads and tray, and polyurethane foam with a porosity of no more than 40-60 ppi (pores per inch).

Claims

1. A fuel tank for a motor vehicle comprising a tank body, a filler neck installed in an opening in the tank body closed by a removable flange, a fuel intake tube and transverse partitions fixed inside the tank body, made in the form of sections and consisting of metal plates, on the outer surfaces of which polyurethane foam plates with a thickness of 5...6 mm and a porosity of no more than 60 pores per linear inch are fixed, and to the inner walls of the tank body at a height of 15...20 mm from the upper end of the fuel intake tube a tray in the form of a metal mesh is rigidly fixed, on which, from the side of the filler neck, a polyurethane foam plate with a thickness of 10...12 mm and a porosity of no more than 40 pores per linear inch is laid to form a settling cavity between the tray and the bottom of the tank body, characterized in that inside the fuel tank body there are longitudinal partitions,made in the form of metal plates with polyurethane foam plates fixed to them on the outer sides with a thickness of 5...6 mm and a porosity of no more than 60 pores per linear inch, which together with the transverse partitions are assembled into a suspended modular-sectional package consisting of rectangular sections placed on a metal multi-hole tray with a thickness of 1...1.5 mm, suspended by a round metal rod to the upper and lower rings welded to the inner walls of the fuel tank body, the multi-hole tray is fixed to the rod with a fastening connection consisting of a nut, a bolt with an axial hole for the free passage of the rod and a locking ring installed in the annular groove of the rod, while the metal plates of the transverse and longitudinal partitions are structurally identical to each other and are made with a thickness of 0.8...1 mm and a height of 1 / 2 to 2 / 3 of the height of the fuel tank body, have holes with a diameter 3…5 mm and grooves,the width of which is greater than the thickness of the metal plates by 0.1...0.2 mm, and the depth of the grooves is equal to half the height of the metal plates.

2. A fuel tank for a motor vehicle according to paragraph 1, characterized in that the polyurethane plates are identical in configuration to the metal plates of the transverse and longitudinal partitions, and the length of which is selected to match the internal dimensions of the fuel tank body of a specific brand of motor vehicle.

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