JP5859737B2 - Vehicle fuel supply system - Google Patents

Description

  The present invention provides a fuel tank supported by a vehicle body frame, a fuel filter disposed in the fuel tank with a filtration surface directly facing the outer surface, and sucks fuel in the fuel tank through the fuel filter. The present invention relates to a vehicular fuel supply device including a fuel pump.

  In a motorcycle, a fuel filter and a fuel pump that sucks fuel in the fuel tank through the fuel filter are disposed in the fuel tank, and the fuel supply is configured to supply fuel from the fuel pump to the fuel injection device. An apparatus is known, for example, from US Pat.

JP 2009-91958 A

  By the way, foreign matters such as metal particles and dust may be mixed in the fuel tank when the fuel tank is manufactured or when fuel is supplied to the fuel tank. However, metal particles having high hardness and specific gravity pass through the fuel filter and pass through the fuel filter. When the pressure chamber enters the pressure chamber, the discharge force generated by the impeller rotating in the pressure chamber is not so large as to discharge the metal particles, so that the discharge force is high, i.e., from the outlet of the pressure chamber disposed above the impeller. There is a possibility that the metal particles may remain in the pressurizing chamber without being led out. If the metal particles stay in the pressurization chamber in such a manner, the wall of the pressurization chamber and the impeller may be worn, and in order to prevent this, the size of the metal particles does not pass through the roughness of the fuel filter. It is possible to set. However, if the roughness of the entire fuel filter is made fine so that the metal particles do not pass through, the fuel filter is likely to be clogged by small foreign matters other than the metal particles, and the replacement period of the fuel filter is shortened.

  In view of such circumstances, the present invention has been made by paying attention to the characteristic of sinking without floating in the fuel when high specific gravity metal particles are mixed in the fuel, and the fuel filter replacement period is made as long as possible. An object of the present invention is to provide a vehicle fuel supply device that can prevent metal particles from entering the fuel pump.

In order to achieve the above object, the present invention provides a fuel tank supported by a vehicle body frame, a fuel filter disposed in the fuel tank with a filtration surface directly facing an outer surface, and the fuel filter disposed through the fuel filter. In the fuel supply device for a vehicle including a fuel pump for sucking fuel in the fuel tank, the fuel filter is configured to restrict the metal particles mixed in the fuel tank from entering the fuel filter from above. is, the bottom wall of the fuel tank, provided so as protrusions protruding downward to form a concave portion therein, a Rukoto the fuel filter is disposed at a position deviated from the recess in plan view the One feature.

The present invention, in addition to the first feature, it maximum passage diameter of the portion facing the upper of the fuel filter, which is set smaller than the maximum passage diameter of the portion facing at least the lower Is the second feature.

  In addition to the configuration of the first feature, the present invention has a third feature that the area of the portion facing above the fuel filter is set to be smaller than the area of the portion facing at least the side. To do.

The present invention provides a fuel tank supported by a vehicle body frame, a fuel filter disposed in the fuel tank with a filtration surface directly facing the outer surface, and sucks fuel in the fuel tank through the fuel filter. In a vehicle fuel supply device including a fuel pump, the fuel filter is covered from above the fuel filter so as to restrict metal particles mixed in the fuel tank from entering the fuel filter from above. A cover member is disposed , and a protrusion projecting downward is provided on the bottom wall of the fuel tank so as to form a recess therein, and the fuel filter is disposed at a position deviating from the recess in plan view. This is the fourth feature.

  In addition to the configuration of the first, second, or fourth features, the present invention includes the fuel pump that extends vertically, and the fuel pump that is formed wide in the horizontal direction and disposed below the fuel pump. According to a fifth feature of the present invention, an opening is provided in the ceiling wall of the fuel tank so that a pump unit including the fuel filter connected to the fuel filter can be inserted.

In addition to the configuration of the third feature, the present invention includes the fuel pump extending vertically, and the fuel filter disposed vertically to the side of the fuel pump and connected to the fuel pump. According to a sixth aspect of the present invention, an opening for allowing insertion of the pump unit is provided in the ceiling wall of the fuel tank .

The present invention is found that, in addition to any configuration of the first to sixth aspect, the fuel secondary filter eyes finer than the filter, so as to filter the fuel discharged from said fuel pump A seventh feature is that the fuel pump is connected.

According to the first feature of the present invention, the metal particles mixed in the fuel tank may reach the fuel filter by sinking from above, but the metal particles enter the fuel filter from above. Since it is possible to increase the durability of the fuel pump by preventing the intrusion of metal particles into the fuel pump, it is not necessary to reduce the roughness of the entire fuel filter. It is possible to avoid the occurrence of clogging in the fuel filter by small foreign matters other than the metal particles as much as possible, and to lengthen the replacement period of the fuel filter. In addition, since the recess formed in the bottom of the fuel tank is disposed at a position away from the fuel filter in a plan view, the metal particles precipitated in the lower part of the fuel tank are floated by the fuel agitation accompanying the traveling of the vehicle. In addition, even if the metal particles that have settled in the recesses are suspended, the metal particles that remain in the recesses can be prevented from sinking onto the fuel filter.

According to a second aspect of the present invention, since the maximum passage diameter of the portion facing upwardly out of the fuel filter is smaller than the maximum passage diameter of the portion facing at least downwardly, the metal from above the fuel filter Invasion of particles is restricted as much as possible, and clogging in the fuel filter can be avoided as much as possible to lengthen the replacement period of the fuel filter, passing through the portion of the fuel filter facing upward Even if the small metal particles having a small particle diameter enter the booster chamber of the fuel pump, they are discharged from the booster chamber by the discharge force, so that it is possible to suppress wear on the wall of the booster chamber and the impeller. it can. At this time, by setting the maximum passage diameter of the portion facing upwardly out of the fuel filter so that only small metal particles having a particle diameter larger than the clearance between the wall and the impeller of the booster chamber can pass, the wall of the pressurization chamber And it can suppress more effectively that abrasion occurs in an impeller.

  According to the third feature of the present invention, since the area of the portion facing upward in the fuel filter is smaller than the area of the portion facing at least the side, the metal particles that sink in the fuel tank are on the fuel filter. By reducing the number of subsidences, it is possible to increase the durability of the fuel pump while reducing the probability of metal particles entering the fuel pump from the fuel filter without reducing the coarseness of the fuel filter. The occurrence of clogging in the fuel filter can be avoided as much as possible, and the replacement period of the fuel filter can be lengthened.

According to the fourth aspect of the present invention, the cover member that restricts the metal particles mixed in the fuel tank from entering the fuel filter from above is disposed above the fuel filter so as to cover the fuel filter from above. Therefore, it is possible to suppress the metal particles from entering the fuel pump from the fuel filter without making the fuel filter coarser by making the metal particles sink over the cover member above the fuel filter. In addition, the durability of the fuel pump can be increased, and the occurrence of clogging in the fuel filter can be avoided as much as possible, and the replacement period of the fuel filter can be lengthened. In addition, since the recess formed in the bottom of the fuel tank is disposed at a position away from the fuel filter in a plan view, the metal particles precipitated in the lower part of the fuel tank are floated by the fuel agitation accompanying the traveling of the vehicle. In addition, even if the metal particles that have settled in the recesses are suspended, the metal particles that remain in the recesses can be prevented from sinking onto the fuel filter.

  According to the fifth feature of the present invention, an opening through which a pump unit comprising a fuel pump and a fuel filter can be inserted is provided in the ceiling wall of the fuel tank, and the fuel pump is disposed vertically long in the fuel tank. Since the fuel filter is disposed below the fuel pump, the pump unit can be assembled to the fuel tank even if the fuel filter is enlarged by disposing the fuel filter at a position separated from the ceiling wall of the fuel tank. Since the fuel filter is wide in the horizontal direction, the fuel supply can be improved even when the remaining amount of fuel in the fuel tank decreases.

According to the sixth aspect of the present invention, an opening through which a pump unit comprising a fuel pump and a fuel filter can be inserted is provided in the ceiling wall of the fuel tank, and the fuel pump is disposed vertically long in the fuel tank. Since a vertically long fuel filter is arranged on the side of the fuel pump, the vertical height of the pump unit comprising the fuel pump and the fuel filter is made smaller than that in which the fuel filter is arranged below the fuel pump. Thus, while avoiding the increase in size of the fuel tank, the area of the upper part of the fuel filter is reduced, and the metal particles that sink in the fuel tank are suppressed from being drawn into the fuel pump through the fuel filter as much as possible. it can be.

According to a seventh feature of the present invention to is found, the fuel discharged from the fuel pump, since the eyes than the fuel filter is filtered with a fine secondary filter, penetration of the metal particles of the fuel filter is regulated By making the coarseness of this portion relatively coarse, it is possible to prevent clogging from occurring on the fuel injection device side while extending the life of the fuel filter.

1 is a side view of a motorcycle showing a first embodiment. FIG. It is a partially cutaway longitudinal side view of a fuel tank and a pump unit. It is an enlarged vertical sectional view of a fuel filter. It is a side view which shows a part of pump unit of 2nd Embodiment. It is a vertical side view which shows a part of pump unit of 3rd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  A first embodiment of the present invention will be described with reference to FIGS. 1 to 3. First, in FIG. 1, a body frame F of a motorcycle as a vehicle is a head pipe that supports a front fork 5 so as to be steerable. 6, a main frame 7 extending rearward and downward from the head pipe 6, a pair of left and right rear frames 8 connected to the rear portion of the main frame 7 and extending rearwardly, and a rear portion of the main frame 7. The front wheel WF is pivotally supported at the lower end of the front fork 5, and a bar-shaped steering handle 10 is connected to the upper portion of the front fork 5.

    Below the main frame 7, for example, an internal combustion engine E having a cylinder axis slightly raised forward is disposed. The internal combustion engine E is provided with hanger plates 11 fixed to both side surfaces of the intermediate portion of the main frame 7. It is suspended from the vehicle body frame F so as to be supported by the pivot frames 9. A front end portion of the rear fork 12 is supported on the pivot frame 9 so as to swing up and down, and a rear wheel WR is pivotally supported on the rear end of the rear fork 12. A rear cushion 13 is provided between the rear frame 8... And the rear fork 12 in the vehicle body frame F.

  A synthetic resin vehicle body cover 14 that covers a part of the vehicle body frame F and the internal combustion engine E is attached to the vehicle body frame F, and a vehicle is mounted on a rear side cover 15 that forms a part of the vehicle body cover 14. A working sheet 16 is provided. A storage box 17 and a fuel tank 18 located behind the storage box 17 are disposed below the riding seat 16 so as to be covered from the side by the rear side cover 15. The fuel tank 18 is supported by the rear frames 8 of the vehicle body frame F.

  In FIG. 2, the fuel tank 18 is formed by joining a box-shaped upper tank half 19 opened downward and a box-shaped lower tank half 20 opened upward. A flange portion 18a projecting sideways is formed at the joint portion.

  The fuel in the fuel tank 18 is sucked up by the pump unit 21A and supplied to the fuel injection device 49 (see FIG. 1) of the internal combustion engine E. The pump unit 21A includes the fuel pump 22A and the fuel pump. And a fuel filter 23A connected to 22A.

  The fuel pump 22A is accommodated in a substantially cylindrical housing 24 that extends vertically, an electric motor 25 built in the housing 24, and a boosting chamber 26 formed in the lower portion of the housing 24. An impeller 27 fixed to the motor shaft 28 is provided, and an outlet passage 30 leading to the boosting chamber 26 is provided in a partition wall 29 separating the boosting chamber 26 and the electric motor 25, and the pressure is increased in the boosting chamber 26. The fuel led out from the outlet passage 30 flows upward in the housing 24.

  At the upper end of the housing 24, a lid member 32 provided with a discharge pipe portion 31 for discharging the fuel that has flown through the housing 24 is partly laterally from the upper end of the housing 24. Combined so as to overhang. On the other hand, the ceiling wall 18b of the fuel tank 18 is provided with an opening 33 for inserting the pump unit 21A, and the fuel pump 22A inserted into the fuel tank 18 from the opening 33 is The lid member 32 that closes the opening 33 in a liquid-tight manner from above is coupled to the ceiling wall 18 b of the fuel tank 18 to be supported by the fuel tank 18.

  Thus, the fuel pump 22A extends vertically in the fuel tank 18, and the fuel filter 23A constituting the fuel pump 22A and the pump unit 21A is formed wide in the horizontal direction so as to form the fuel pump 22A. It is arranged below 22A.

  Referring also to FIG. 3, the fuel filter 23A is disposed in the fuel tank 18 with the filtration surfaces 34a and 35a directly facing the outer surface, and the peripheral edge of the filter medium unit 34 disposed above. And a peripheral portion of the filter medium unit 35 disposed below are joined by ultrasonic welding, electric welding, or the like, or by bonding with an adhesive, so as to form a purification chamber 36 between the two filter medium units 34, 35. Made up. Thus, both the filter media units 34 and 35 may be made of a single filter medium, with the outer surfaces thereof being the filter surfaces 34a and 35a, or may be configured by laminating a plurality of filter media. Good.

Since the metal particles mixed into the fuel tank 18 to regulate the entry of from above the fuel filter 23A, the maximum passage particle size portion facing at least the lower portion facing upwards out of the fuel filter 23A It is set smaller than the maximum passage diameter of. That is, in this first embodiment, the maximum passage diameter of the filter medium units 34 constituting the portion facing upwardly out of the fuel filter 23A is, most of the filter media unit 35 constituting a portion facing downward of the fuel filter 23A It is set smaller than the large passing particle diameter. Thus, when the filter medium unit 34 is formed by laminating a plurality of filter mediums, the roughness of the innermost filter medium is discharged to the outlet passage 30 side of the boosting chamber 26 by the discharge force of the impeller 27. It is set to be less than 20 μm so as to prevent the passage of metal particles having a particle diameter of 20 μm or more, and preferably the clearance between the wall surface of the pressurizing chamber 26 and the impeller 27 is smaller than 10 μm, for example. Is set to 10 μm so that only can pass through. On the other hand, the coarseness of the finest filter medium among the plurality of filter mediums constituting the filter medium unit 35 is set to 70 μm, for example.

  The fuel sucked up by the fuel pump 22A is supplied to the fuel injection device 49 of the internal combustion engine E. The secondary filter 48 (see FIG. 1), which is finer than the fuel filter 23A, is used as the fuel. The fuel pump 22A is connected to the fuel pump 22A so as to filter the fuel discharged from the pump 22A.

  In FIG. 2 again, the lower end of the housing 24 in the fuel pump 22A is closed, and a suction pipe 38A communicating with the boosting chamber 26 extends downward on the bottom wall 37 forming the bottom wall of the boosting chamber 26. The suction pipe 38A penetrates the filter medium 34 of the fuel filter 23A and enters the purification chamber 36. That is, the suction pipe 38A is connected to the fuel filter 23A.

  The bottom wall 18c of the fuel tank 18 is provided with a protrusion 18d projecting downward so as to form a recess 39 therein, and the fuel filter 23A is displaced from the recess 39 in plan view. Placed in position.

  Thus, it is desirable that the concave portion 39 is disposed directly below the fuel filler opening 40 provided on the ceiling wall 18b of the fuel tank 18 and closed by the screw-in type cap 41. The lower end of the suction pipe 38A is disposed above a predetermined distance L, for example, 6 mm or more from the bottom wall 18c so as not to suck up the metal particles accumulated on the bottom wall 18c of the fuel tank 18. It is desirable.

  Next, the operation of the first embodiment will be described. Since the fuel filter 23A is configured to restrict the metal particles mixed in the fuel tank 18 from entering the fuel filter 23A from above, The metal particles mixed in the fuel tank 18 may sink to the fuel filter 23A from above, but the metal particles are prevented from entering the fuel filter 23A from above, so the fuel pump It is possible to improve the durability of the fuel pump 22A by preventing the intrusion of metal particles into the 22A, and it is not necessary to reduce the overall roughness of the fuel filter 23A. It is possible to avoid the occurrence of clogging in the fuel filter 23A due to foreign matters as much as possible, and to lengthen the replacement cycle of the fuel filter 23A.

Moreover the maximum passage diameter of the portion facing upwardly out of the fuel filter 23A is, at least because they are smaller than the maximum passage diameter of the portion facing downward, the metal particles from entering from above the fuel filter 23A Can be prevented as much as possible and the replacement period of the fuel filter 23A can be lengthened by avoiding clogging of the fuel filter 23A as much as possible. Even if metal particles having a small diameter enter the booster chamber 26 of the fuel pump 22A, the discharge force causes the metal particles to be discharged from the booster chamber 26, thereby suppressing the occurrence of wear on the wall and impeller of the booster chamber. Can do. In this case, the maximum passage grains to face the upper of the fuel filter 23A such that only small metal particles than small metal particles e.g. 10μm particle size than the clearance between the wall and the impeller 27 of the pressurization chamber 26 may pass By setting the diameter, it is possible to more effectively suppress wear on the wall surface of the booster chamber 26 and the impeller 27.

  A projecting portion 18d protruding downward is formed on the bottom wall 18c of the fuel tank 18 so as to form a recess 39 therein, and the fuel filter 23A is disposed at a position away from the recess 39 in plan view. Therefore, even if the metal particles precipitated in the lower part of the fuel tank 18 float due to fuel agitation accompanying the traveling of the motorcycle, the metal particles settled in the recess 39 remain in the recess 39 even if they float. It is possible to prevent the floating metal particles from sinking onto the fuel filter 23A. In particular, since the recess 39 is disposed directly below the fuel filler opening 40 provided on the ceiling wall 18b of the fuel tank 18, the fuel particles are precipitated so that metal particles that may be mixed into the fuel during fueling are precipitated in the recess 39. Even when metal particles are generated due to rubbing when the cap 41 is opened and closed by closing the oil supply port 40 with the screw cap 41, the sinking of the metal particles on the filter 23A can be more effectively suppressed. The generated metal particles can be precipitated in the recess 39.

  The pump unit 21A includes a fuel pump 22A that extends vertically and a fuel filter 23A that is wide in the horizontal direction and is disposed below the fuel pump 22A and connected to the fuel pump 22A. Since the opening 33 for inserting the pump unit 21A is provided in the ceiling wall 18b of the fuel tank 18, the fuel filter 23A is arranged at a position separated from the ceiling wall 18b of the fuel tank 18. Even if the fuel filter 23A is enlarged, the assembly of the pump unit 21A to the fuel tank 18 can be facilitated, and since the fuel filter 23A is wide in the horizontal direction, the remaining amount of fuel in the fuel tank 18 is reduced. However, the fuel supply can be improved.

  Further, since the secondary filter 49, which is finer than the fuel filter 23A, is connected to the fuel pump 22A so as to filter the fuel discharged from the fuel pump 22A, intrusion of metal particles in the fuel filter 23A is restricted. By making the coarseness of the unnecessary portion relatively coarse, it is possible to prevent clogging from occurring on the fuel injection device 49 side while extending the life of the fuel filter 23A.

  The second embodiment of the present invention will be described with reference to FIG. 4, but the parts corresponding to the first embodiment are only given the same reference numerals and shown in detail. Omitted.

  The pump unit 21B includes a fuel pump 22B extending vertically and a fuel filter 23B connected to the fuel pump 22B so that the filtration surfaces 42a and 43a face the outer surface. The fuel filter 23B contains metal particles. The fuel filter 23B is configured to be restricted from entering from above.

  The fuel filter 23B is formed by joining the peripheral portions of two filter medium units 42, 43 having the same roughness, and both filter medium units 42, 43 have filter surfaces 42a, 43a on their outer surfaces. However, it may be composed of a single filter medium, or may be configured by laminating a plurality of filter media. Further, a suction pipe 38B provided at the lower portion of the fuel pump 22B is connected to the fuel filter 23B so as to enter the filter medium units 42 and 43.

  Thus, in order to restrict the metal particles from entering the fuel filter 23B from above, the area of the portion facing the fuel filter 23B is set to be smaller than the area of the portion facing at least the side. In the second embodiment, the fuel filter 23B elongated vertically is disposed on the side of the fuel pump 22B extending vertically.

  According to the second embodiment, the area of the portion of the fuel filter 23B that faces upward is smaller than the area of the portion that faces at least the side, so that the inside of the fuel tank 18 (see the first embodiment). By reducing the number of metal particles that sink on the fuel filter 23B, the probability of metal particles entering the fuel pump 22B from the fuel filter 23B without reducing the roughness of the fuel filter 23B is reduced. In addition to improving the durability of the fuel pump 22B, it is possible to avoid the occurrence of clogging in the fuel filter 23B as much as possible and lengthen the replacement cycle of the fuel filter 23B.

  Moreover, since the fuel pump 22B is long and vertically disposed, and the vertically long fuel filter 23B is disposed on the side of the fuel pump 22B, the vertical height of the fuel pump 22B and the pump unit 21B comprising the fuel filter is set to the fuel pump 22B. It is possible to avoid an increase in the size of the fuel tank 18 by making the size smaller than that in which a fuel filter is disposed below the fuel tank 18.

  A third embodiment of the present invention will be described with reference to FIG. 5. A pump unit 21C includes a fuel pump 22A extending vertically and the fuel pump 22A with the filtration surfaces 42a and 43a facing the outer surface. The fuel filter 23C is formed by joining, for example, the peripheral portions of two filter medium units 45, 46 having the same eye roughness, and the both filter medium units 45, 46 are joined together. May be formed of a single filter medium, with the outer surfaces being the filter surfaces 45a and 46a, or may be configured by laminating a plurality of filter media.

  Thus, the fuel filter 23C is formed wide in the horizontal direction and is disposed below the fuel pump 22A, and a suction pipe 38A provided at the lower portion of the fuel pump 22A enters the both filter medium units 45 and 46. In this way, the fuel filter 23C is connected.

  In addition, a cover member 47 that covers the fuel filter 23C from above is disposed above the fuel filter 23C so as to restrict the metal particles from entering the fuel filter 23C from above. For example, it is attached to the suction pipe 38A.

  According to the third embodiment, the cover member 47 that restricts the metal particles from entering the fuel filter 23C from above is disposed above the fuel filter 23C so as to cover the fuel filter 23C from above. Therefore, metal particles are allowed to sink over the cover member 47 above the fuel filter 23C so that the metal particles enter the fuel pump 22A from the fuel filter 23C without reducing the roughness of the fuel filter 23C. It is possible to suppress this, and it is possible to increase the durability of the fuel pump 22A, and it is possible to avoid the occurrence of clogging in the fuel filter 23C as much as possible and to lengthen the replacement period of the fuel filter 23C.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. Is possible.

18 ... Fuel tank 18b ... Ceiling wall 18c ... Bottom wall 18d ... Projections 21A, 21B, 21C ... Pump units 22A, 22B ... Fuel pumps 23A, 23B, 23C ... Fuel filter 33 ... opening 34a, 35a, 42a, 43a, 45a, 46a ... filtration surface 39 ... recess 47 ... cover member 48 ... secondary filter F ... body frame

Claims (7)

A fuel tank (18) supported by the vehicle body frame (F) and a fuel filter (23A, 23a, 35a; 42a, 43a) disposed in the fuel tank (18) with the filtration surfaces (34a, 35a; 42a, 43a) directly facing the outer surface And a fuel pump (22A, 22B) for sucking fuel in the fuel tank (18) through the fuel filter (23A, 23B),
The fuel filter (23A, 23B) is configured to restrict the metal particles mixed in the fuel tank (18) from entering the fuel filter (23A, 23B) from above, and the fuel tank (18 ) Is provided on the bottom wall (18c) of the lower portion so as to form a recess (39) therein, and the fuel is located at a position deviated from the recess (39) in plan view. filter (23A, 23B, 23C) for a vehicle fuel supply device according to claim Rukoto is arranged. The maximum passage diameter of the portion facing upwardly out of the fuel filter (23A) is a fuel for a vehicle according to claim 1, wherein a is smaller than the maximum passage diameter of the portion facing at least the lower Feeding device.   The vehicle fuel supply device according to claim 1, wherein an area of a portion facing above the fuel filter (23B) is set to be smaller than an area of a portion facing at least the side. A fuel tank (18) supported by the vehicle body frame (F), a fuel filter (23C) disposed in the fuel tank (18) with the filtration surfaces (45a, 46a) directly facing the outer surface, and the fuel In a vehicle fuel supply device comprising a fuel pump (22A) for sucking fuel in the fuel tank (18) through a filter (23C),
The fuel filter (23C) is covered above the fuel filter (23C) from above so as to restrict the metal particles mixed in the fuel tank (18) from entering the fuel filter (23C) from above. A cover member (47) is disposed , and a projecting portion (18d) projecting downward is provided on the bottom wall (18c) of the fuel tank (18) so as to form a recess (39) therein. the fuel filter (23C) for a vehicle fuel supply device according to claim Rukoto is arranged at a position deviated from the recess (39) in view.   The fuel pump (22A) extending long in the vertical direction, and the fuel filters (23A, 23C) formed wide in the horizontal direction and disposed below the fuel pump (22A) and connected to the fuel pump (22A) An opening (33) into which a pump unit (21A, 21C) consisting of the above can be inserted is provided in the ceiling wall (18b) of the fuel tank (18). The fuel supply apparatus for vehicles as described.   The fuel pump (22B) extending vertically and the fuel filter (23B) extending vertically and disposed on the side of the fuel pump (22B) and connected to the fuel pump (22B). The vehicle fuel supply device according to claim 3, wherein an opening (33) into which the pump unit (21B) can be inserted is provided in a ceiling wall (18b) of the fuel tank (18).   The fuel pump (22A, 22B) is configured such that the secondary filter (48), which is finer than the fuel filter (23A, 23B, 23C), filters the fuel discharged from the fuel pump (22A, 22B). The vehicle fuel supply device according to claim 1, wherein the vehicle fuel supply device is connected to the vehicle.

Images