Electric fuel injection tank

Abstract

The utility model relates to the technical field of fuel tanks, in particular to an electronic fuel injection tank. The oil tank comprises an oil tank body, an oil outlet seat, an oil inlet seat and an oil tank cover, and the oil tank body is provided with a first mounting opening and a second mounting opening which are communicated with the oil tank body; the oil inlet seat is mounted at the first mounting port of the oil tank body, and an oil inlet communicated with the oil tank body is formed in the oil inlet seat; the oil tank cover is detachably connected in the oil inlet of the oil inlet seat; the oil outlet base is installed at the second installation opening of the oil pump body and provided with an oil outlet nozzle, and the oil outlet nozzle is communicated with the oil tank body. When the oil tank is used, the oil pump is installed at the bottom of the oil inlet seat, the oil pump, the oil inlet and the oil tank cover are integrated, an oil pump installation opening does not need to be independently formed in the oil tank, the overall sealing performance of the oil tank is improved, and the manufacturing cost of the oil tank is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oil tanks, in particular to an electronic injection oil tank. Background Art

[0002] The electronic fuel injection tanks currently on the market usually include a fuel tank and a fuel pump. In the fuel supply system of the electronic fuel injection tank, the path usually starts from the fuel tank, passes through the fuel pump, and finally reaches the throttle. In order to integrate the fuel tank and the fuel pump, an oil inlet and a special fuel pump installation port are provided on the fuel tank, wherein the oil inlet is closed by the fuel tank cover. The fuel tank and the fuel pump are sealed at the fuel pump installation port by screws, mounting flanges and sealing rings, thereby combining the fuel tank and the fuel pump together.

[0003] However, there are some problems with the existing EFI fuel tank design. Since the fuel tank needs to have an independent mounting port for the fuel pump, this not only increases the number of openings in the fuel tank, but also increases the risk of oil leakage; at the same time, the screws, mounting flanges and sealing rings required for the independent fuel pump will also increase costs. Utility Model Content

[0004] In view of the above-mentioned defects, the technical problem solved by the utility model is to provide an electronic fuel injection tank, which can avoid the need to separately set a mounting port for installing an oil pump on the electronic fuel injection tank, thereby reducing the risk of oil leakage from the electronic fuel injection tank.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] An electronic fuel injection tank, comprising:

[0007] An oil tank body, wherein the oil tank body is provided with a first mounting opening and a second mounting opening;

[0008] An oil inlet seat is installed at the first installation opening of the oil tank body, and the oil inlet seat is provided with an oil inlet connected to the oil tank body;

[0009] A fuel tank cap, detachably connected to the fuel inlet of the fuel inlet seat;

[0010] The oil outlet seat is installed at the second installation opening of the oil tank body. The oil outlet seat is provided with an oil outlet nozzle, and the oil outlet nozzle is communicated with the oil tank body.

[0011] By adopting the above solution, the oil pump is connected to the bottom of the oil inlet seat, so that the oil pump, the oil inlet seat and the fuel tank cover are integrated together. Since the oil pump is connected to the oil inlet seat, it is possible to avoid setting a separate mounting hole for mounting the oil pump on the fuel tank. The oil outlet pipe of the oil pump supplies oil to the outside through the oil outlet nozzle on the oil outlet seat. Since the size of the oil outlet seat is smaller than that of the oil pump, and the oil outlet seat itself is subjected to less vibration when the oil pump is working, the sealing performance of the oil outlet seat and the third mounting port is better, thereby improving the overall sealing performance of the fuel tank and reducing the risk of oil leakage. In addition, since the oil pump mounting port is removed, the manufacturing cost of the fuel tank is reduced.

[0012] The utility model is further configured such that the oil tank body comprises an upper shell and a lower shell connected to each other, the upper shell and the lower shell are both in a cover shape, the upper shell and the lower shell are together enclosed to form an oil storage chamber, and the first installation opening and the second installation opening are both opened at the top of the upper shell. The oil tank body is formed by enclosing the upper shell and the lower shell, which makes the manufacturing and processing of the oil tank body easier, and the upper shell and the lower shell are easy to store separately.

[0013] The utility model is further configured that the upper shell is provided with a third installation port connected to the oil storage chamber, and a dump valve is provided in the third installation port. The dump valve can be ventilated when the oil tank is placed forward to balance the air pressure inside the oil tank; and the oil tank is closed when it is dumped to prevent oil leakage.

[0014] The utility model is further configured such that the oil tank body further includes a bottom shell, and the bottom shell is connected to the outside of the lower shell. Since the oil tank needs to be connected to other components when in use and also needs to be sealed, it is not suitable to open holes or set connecting columns on the lower shell. By setting the bottom shell on the outside of the lower shell, opening holes or setting connecting columns on the bottom shell will not affect the sealing of the oil storage chamber, and it is convenient to connect the oil tank with other components.

[0015] The utility model is further configured such that the mouth edge of the top of the lower shell is provided with a first folded edge extending outward, the mouth edge of the top of the bottom shell is provided with a second folded edge extending outward, the second folded edge is fitted with the first folded edge, the mouth edge of the lower end of the upper shell is provided with a curling edge, the curling edge covers both the first folded edge and the second folded edge on the inner side, and the free end of the curling edge abuts against the lower side of the second folded edge. Since the curling edge covers the first folded edge and the second folded edge on the inner side, it is convenient to connect the upper shell, the lower shell and the bottom shell, and can ensure the sealing of the oil storage chamber.

[0016] The utility model is further configured such that the outer edge of the oil inlet seat has a wing plate, a plurality of first through holes are formed on the wing plate, the wing plate is connected to the upper shell through a plurality of bolts corresponding to the first through holes, a first sealing ring is provided between the wing plate and the upper shell, and the wing plate and the upper shell are sealed by the first sealing ring. The first sealing ring is passed between the wing plate and the upper shell to ensure the sealing between the oil inlet seat and the upper shell. In addition, the oil inlet seat can be easily disassembled and assembled by bolts.

[0017] The utility model is further configured such that an annular pressure plate is provided on the upper side of the wing plate, and a plurality of second through holes corresponding to the first through holes are opened on the pressure plate, and the threaded section of the bolt passes through the corresponding second through holes and the first through holes in sequence and is connected to the upper shell. The wing plate is fixed to the upper shell by the pressure plate and the bolt, which, on the one hand, allows the wing plate to be subjected to a more uniform force, and the wing plate is firmly fixed to the upper shell. On the other hand, the pressure plate can prevent the bolts from squeezing or rubbing and damaging the surface of the wing plate during installation, thereby extending the service life of the wing plate.

[0018] The utility model is further configured such that the upper shell is provided with a plurality of protrusions corresponding to the bolts one by one, the upper side of the protrusions is provided with blind holes, and the threaded sections of the bolts are threadedly connected in the corresponding blind holes. Since the bolts cooperate with the blind holes on the protrusions, the bolts will not affect the sealing of the oil storage chamber, thereby improving the sealing performance of the oil storage chamber.

[0019] The utility model is further configured such that a second sealing ring is provided between the top of the oil inlet seat and the oil tank cover, and the oil inlet seat and the oil tank cover are sealed by the second sealing ring. The second sealing ring can improve the sealing performance between the oil tank cover and the oil inlet seat.

[0020] The utility model is further configured that an oil inlet filter is provided in the oil inlet, and pollutants in the oil entering the oil storage chamber can be filtered through the oil inlet filter.

[0021] In summary, the electronic fuel injection tank provided by the utility model has at least the following beneficial effects:

[0022] 1. The oil pump, oil inlet and fuel tank cap are integrated together, eliminating the need to separately set an oil pump installation port on the fuel tank, thereby improving the overall sealing of the fuel tank and reducing manufacturing costs.

[0023] 2. The upper shell, the lower shell and the bottom shell of the fuel tank body cooperate with the first folded edge and the second folded edge through the curling, so that the assembly of the fuel tank body is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any novel labor.

[0025] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment;

[0026] Figure 2 is a front view of an embodiment;

[0027] Figure 3 yes Figure 2 The cross-sectional view at AA in the middle (which shows the installation position of the oil pump);

[0028] Figure 4 yes Figure 3 The enlarged view at a in the middle;

[0029] Figure 5 yes Figure 3 The enlarged view at b in the middle;

[0030] Figure 6 is an exploded view of the embodiment at a first viewing angle;

[0031] Figure 7 is an exploded view of the embodiment at a second viewing angle.

[0032] Figure numerals: 1. fuel tank body, 101. upper shell, 102. lower shell, 103. protrusion, 104. blind hole, 105. first folded edge, 106. bottom shell, 107. second folded edge, 108. curling edge, 2. first mounting port, 3. second mounting port, 4. oil outlet seat, 5. oil outlet nozzle, 6. oil inlet seat, 7. oil inlet, 8. connecting piece, 9. fuel tank cover, 10. third mounting port, 11. dump valve, 12. wing plate, 13. first through hole, 14. bolt, 15. first sealing ring, 16. pressure plate, 17. second through hole, 18. second sealing ring, 19. oil inlet filter, 20. wiring port, 21. connecting hole, 22. connecting column, 23. mounting groove, 24. oil pump. DETAILED DESCRIPTION

[0033] In order to make those skilled in the art better understand the technical solution of the utility model, the following Figure 1-7 The utility model is further described in detail with specific implementation methods.

[0034] See also Figure 1-7The embodiment provides an electronic fuel injection tank, comprising a fuel tank body 1, an oil outlet seat 4, an oil inlet seat 6 and a fuel tank cover 9. The fuel tank body 1 is provided with an oil storage chamber, and the fuel tank body 1 is provided with a first mounting port 2 and a second mounting port 3 communicating with the oil storage chamber. The oil inlet seat 6 is installed at the first mounting port 2 of the fuel tank body 1, specifically located on the inner side of the first mounting port 2, and the oil inlet seat 6 seals the first mounting port 2. The oil inlet seat 6 is provided with an oil inlet 7 communicating with the oil storage chamber of the fuel tank body 1. In order to facilitate the installation of the oil pump 24 to the bottom of the oil inlet seat 6, optionally, a connector 8 located in the oil storage chamber is provided at the bottom of the oil inlet seat 6, and the connector 8 is used to connect the oil pump 24, and the oil pump 24 is fixedly connected or detachably connected to the connector 8. The shape and size of the connector 8 are specifically set according to the requirements for the installation of the oil pump 24. The fuel tank cover 9 is detachably connected to the oil inlet 7 of the fuel tank body 1, and the fuel tank cover 9 can seal the oil inlet 7. Preferably, the lower section of the oil tank cover 9 is provided with an external thread, and the lower section of the oil tank cover 9 is threadedly connected to the oil inlet 7. The oil outlet seat 4 is installed in the second installation port 3 of the oil tank body 1, and the oil outlet seat 4 is provided with an oil outlet nozzle 5, which is connected to the oil storage chamber of the oil tank body 1; the oil outlet seat 4 is also provided with a wiring port 20, and the oil pump 24 arranged in the oil storage chamber is connected to the external control circuit through the wiring port 20.

[0035] By adopting the above scheme, when in use, the oil pump 24 is connected to the bottom of the oil inlet seat 6 through the connecting piece 8, so that the oil pump 24, the oil inlet seat 6 and the fuel tank cover 9 are integrated together. Since the oil pump 24 is connected to the oil inlet seat 6, it is possible to avoid setting a separate mounting hole for mounting the oil pump 24 on the fuel tank. The oil outlet pipe of the oil pump 24 supplies oil to the outside through the oil outlet nozzle 5 on the oil outlet seat 4. Since the size of the oil outlet seat 4 is smaller than that of the oil pump 24, and the oil outlet seat 4 itself is subjected to less vibration when the oil pump 24 is working, the sealing performance of the oil outlet seat 4 and the third mounting port 10 is better, thereby improving the overall sealing performance of the fuel tank and reducing the risk of oil leakage. In addition, since the oil pump mounting port is removed, the manufacturing cost of the fuel tank is reduced.

[0036] See also Figure 6 and Figure 7In some embodiments, the oil tank body 1 includes an upper shell 101 and a lower shell 102 connected to each other, and both the upper shell 101 and the lower shell 102 are in the shape of a cover. The opening of the upper shell 101 is downward, and the opening of the lower shell 102 is upward. The upper shell 101 and the lower shell 102 are enclosed together to form an oil storage chamber, and the second installation port 3 and the first installation port 2 are both opened at the top of the upper shell 101. The first installation port 2 is located in the middle of the upper side of the upper shell 101, and the upper shell 101 is provided with an annular installation groove 23 at the edge of the first installation port 2. A third installation port 10 connected to the oil storage chamber is also opened at the top of the upper shell 101, and a dumping valve 11 is provided in the third installation port 10. The dumping valve 11 is a prior art. The dumping valve 11 can be used to ventilate the oil tank when it is placed forward to balance the air pressure inside the oil tank; when the oil tank is dumped, the dumping valve 11 is closed to prevent oil leakage.

[0037] Please continue reading Figure 2-5 In order to facilitate the connection of the oil tank with other external components without affecting the sealing of the oil storage chamber, the oil tank body 1 further includes a bottom shell 106, which is connected to the outside of the lower shell 102. The bottom of the bottom shell 106 is provided with a connecting column 22 and a connecting hole 21 connected to the external components. The connecting column 22 can specifically be a stud, and the connecting hole 21 can specifically be a threaded hole. The mouth edge of the top of the lower shell 102 is provided with a first folded edge 105 extending outward, and the mouth edge of the top of the bottom shell 106 is provided with a second folded edge 107 extending outward, and the upper side of the second folded edge 107 is in contact with the lower side of the first folded edge 105. The mouth edge of the lower end of the upper shell 101 is provided with a curling edge 108, and the curling edge 108 covers the first folding edge 105 and the second folding edge 107 on the inner side, and the free end of the curling edge 108 is against the lower side of the second folding edge 107. Among them, the setting of the curling edge 108 specifically refers to Figure 5 The curling edge 108 includes a first bending section, a second bending section and a third bending section connected in sequence, wherein the first bending section is connected to the edge of the mouth at the lower end of the upper shell 101. The first bending section is bent horizontally outward, the second bending section is bent downward, and the third bending section is bent horizontally inward, and the first bending section and the third bending section are used to clamp the first folding edge 105 and the second folding edge 107.

[0038] Please continue reading Figure 3 , Figure 4 and Figure 6In some embodiments, the outer edge of the oil inlet seat 6 has a wing plate 12, which is annular and has a plurality of first through holes 13. The wing plate 12 is connected to the upper shell 101 through a plurality of bolts 14 corresponding to the first through holes 13. A first sealing ring 15 is provided between the wing plate 12 and the upper shell 101, and the wing plate 12 and the upper shell 101 are sealed by the first sealing ring 15. The first sealing ring 15 is specifically installed in an annular mounting groove 23, and the wing plate 12 and the mounting groove 23 clamp the first sealing ring 15 together. In order to make the wing plate 12 evenly stressed and protect the wing plate 12, an annular pressure plate 16 is provided on the upper side of the wing plate 12, and a plurality of second through holes 17 corresponding to the first through holes 13 are provided on the pressure plate 16. The threaded section of the bolt 14 passes downward through the corresponding second through holes 17 and the first through holes 13 in sequence and then is connected to the upper shell 101. In order to avoid affecting the sealing of the oil storage chamber by opening holes in the upper shell 101 to install the bolts 14, the upper shell 101 is further provided with a plurality of protrusions 103 corresponding to the bolts 14, and a blind hole 104 is opened on the upper side of the protrusion 103, and the threaded section of the bolt 14 is threadedly connected in the corresponding blind hole 104. Among them, the protrusion 103 protrudes toward the inner side of the upper shell 101, the upper end of the blind hole 104 passes through the top of the upper shell 101, and the lower end of the blind hole 104 does not pass through the lower end of the protrusion 103, and the lower end of the blind hole 104 is a closed end.

[0039] Please continue reading Figure 6 In order to enhance the sealing between the fuel tank cover 9 and the fuel inlet seat 6 , a second sealing ring 18 is further provided between the top of the fuel inlet seat 6 and the fuel tank cover 9 , and the fuel inlet seat 6 and the fuel tank cover 9 are sealed by the second sealing ring 18 .

[0040] Please continue reading Figure 6 In order to filter the pollutants in the oil entering the oil storage chamber, an oil inlet filter 19 is further provided in the oil inlet 7, and the oil inlet filter 19 is a prior art.

[0041] It should be noted that the words indicating direction in this article, such as up and down, are all based on Figure 1 The setting of the direction is only for the convenience of description and has no other specific meaning.

[0042] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0043] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An electronic fuel injection tank, characterized in that: include: An oil tank body (1), wherein the oil tank body (1) is provided with a first mounting opening (2) and a second mounting opening (3); An oil inlet seat (6) is mounted at the first mounting opening (2) of the oil tank body (1), and an oil inlet port (7) communicating with the oil tank body (1) is provided on the oil inlet seat (6); An oil tank cover (9) is detachably connected to the oil inlet (7) of the oil inlet seat (6); An oil outlet seat (4) is installed at the second installation opening (3) of the oil tank body (1); an oil outlet nozzle (5) is provided on the oil outlet seat (4); and the oil outlet nozzle (5) is communicated with the oil tank body (1).

2. An electronic fuel injection tank as claimed in claim 1, characterized in that: The oil tank body (1) comprises an upper shell (101) and a lower shell (102) connected to each other, the upper shell (101) and the lower shell (102) are both cover-shaped, the upper shell (101) and the lower shell (102) together enclose an oil storage chamber, and the first installation opening (2) and the second installation opening (3) are both opened on the top of the upper shell (101).

3. An electronic fuel injection tank as claimed in claim 2, characterized in that: The upper shell (101) is also provided with a third installation opening (10) which is in communication with the oil storage chamber, and a dump valve (11) is provided in the third installation opening (10).

4. An electronic fuel injection tank as claimed in claim 2 or 3, characterized in that: The oil tank body (1) further comprises a bottom shell (106), wherein the bottom shell (106) is connected to the outside of the lower shell (102).

5. An electronic fuel injection tank as claimed in claim 4, characterized in that: The mouth edge of the top end of the lower shell (102) is provided with a first folded edge (105) extending outward, and the mouth edge of the top end of the bottom shell (106) is provided with a second folded edge (107) extending outward, and the second folded edge (107) is in contact with the first folded edge (105). The mouth edge of the lower end of the upper shell (101) is provided with a curling edge (108), and the curling edge (108) covers the first folded edge (105) and the second folded edge (107) on the inner side, and the free end of the curling edge (108) is against the lower side of the second folded edge (107).

6. An electronic fuel injection tank as claimed in claim 2, characterized in that: The outer edge of the oil inlet seat (6) is provided with a wing plate (12), and a plurality of first through holes (13) are formed on the wing plate (12). The wing plate (12) is connected to the upper shell (101) via a plurality of bolts (14) corresponding to the first through holes (13) one by one. A first sealing ring (15) is provided between the wing plate (12) and the upper shell (101), and the wing plate (12) and the upper shell (101) are sealed via the first sealing ring (15).

7. An electronic fuel injection tank as claimed in claim 6, characterized in that: An annular pressure plate (16) is provided on the upper side of the wing plate (12), and a plurality of second through holes (17) corresponding to the first through holes (13) are opened on the pressure plate (16), and the threaded section of the bolt (14) passes through the corresponding second through holes (17) and the first through holes (13) in sequence and is connected to the upper shell (101).

8. An electronic fuel injection tank as claimed in claim 6, characterized in that: The upper shell (101) is provided with a plurality of protrusions (103) corresponding one to one with the bolts (14); a blind hole (104) is opened on the upper side of the protrusion (103); and the threaded section of the bolt (14) is threadedly connected in the corresponding blind hole (104).

9. An electronic fuel injection tank as claimed in any one of claims 6 to 8, characterized in that: A second sealing ring (18) is provided between the top of the oil inlet seat (6) and the oil tank cover (9), and the oil inlet seat (6) and the oil tank cover (9) are sealed by the second sealing ring (18).

10. An electronic fuel injection tank as claimed in claim 1, characterized in that: An oil inlet filter (19) is provided in the oil inlet (7).

Images