JP2015107772A - Fuel tank system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fuel tank system which simplifies an attachment part of a fuel pump in a fuel tank and achieves downsizing of the attachment part to increase the capacity of the fuel tank.SOLUTION: A fuel tank system 10 includes: a fuel tank 20 disposed below a floor panel 11; a fuel pump module 30 disposed in the fuel tank 20; a vent valve 40 provided at an upper part 21 of the fuel tank 20; and a reservoir 50 integrally provided at a bottom part 22 of the fuel tank 20. The fuel pump module 30 includes: a pump flange 31 serving as an attachment part; a bracket 32 extending from the pump flange 31 to the fuel tank 20; a fuel pump 33 which is supported by a tip part of the bracket 32 and pumps a fuel; a strainer 34 which is provided at the fuel pump 33 and suctions the fuel stored in the reservoir 50; and a fuel pipeline 35 connected with the fuel pump 33.

Description

  The present invention relates to a fuel tank system that includes a fuel tank that stores fuel, and a fuel pump module that is inserted into an insertion port provided in the fuel tank and feeds fuel to the outside of the fuel tank.

  In order to supply the fuel stored in the fuel tank to the internal combustion engine, a fuel pump that sends out the fuel is used. For example, Patent Document 1 is known as a technique in which a fuel pump module having such a fuel pump is attached to a fuel tank.

  In this fuel tank system shown in Patent Document 1, an insertion port is provided on the upper surface of the fuel tank, and a fuel pump module having a reservoir for storing fuel and a fuel pump is inserted into the fuel tank from the insertion port. In the fuel pump module, a fuel pump is provided in a reservoir, and a support column extending upward from the reservoir is connected to the flange portion. The outer diameter of the flange portion is set to be larger than the diameter of the insertion port. The flange portion is brought into contact with the insertion port, and the flange portion is fixed to the insertion port by a lock nut that covers the flange portion.

  However, since the fuel pump is placed in the reservoir, the outer diameter of the reservoir is relatively large, and the diameter of the insertion port needs to be further increased in order to pass the reservoir through the insertion port. Moreover, in order to fasten the lock nut which covers a flange part, the large external thread part which has the height and thickness for fastening the lock nut is formed in the vicinity of the insertion port of the fuel tank. For this reason, the molding of the fuel tank becomes complicated, and it is necessary to reduce the capacity of the fuel tank to secure a space for the external thread portion.

JP 2011-5950 A

  An object of the present invention is to provide a fuel tank system capable of simplifying and downsizing a fuel pump mounting portion in a fuel tank and increasing the capacity of the fuel tank.

  According to the first aspect of the present invention, in the fuel tank system including a reservoir for storing fuel at the bottom of the fuel tank, and the fuel pump is disposed in the reservoir, the reservoir is separate from the fuel pump and the fuel. An insertion port for inserting the fuel pump into the fuel tank is formed in the fuel tank, and the diameter of the insertion port is smaller than the outer shape of the reservoir. A bracket for supporting the pump is provided, and the fuel pump is disposed in the reservoir by the bracket.

  Preferably, the reservoir is formed integrally with the fuel tank.

  As described in claim 3, preferably, the reservoir is disposed in the center of the bottom portion, and the insertion port is located immediately above the reservoir disposed in the center of the bottom portion.

  According to a fourth aspect of the present invention, preferably, the fuel tank has a vent valve for preventing outflow of fuel in the fuel tank, and the vent valve is integral with the bracket.

  According to a fifth aspect of the present invention, preferably, the fuel tank has a side surface that rises from the peripheral edge of the bottom portion, the insertion port is formed in the side surface portion, and the fuel pump is supported by the bracket, and the side surface portion. It is characterized in that it is inserted into the reservoir from the formed insertion opening obliquely from above.

  As described in claim 6, preferably, a cylindrical member is provided outside the insertion port of the fuel tank, and a base end side of the bracket is formed in an annular shape and provided outside the annular portion. A sealing member and a pump flange that closes the end of the annular portion, and one of the tubular member or the pump flange is provided with a claw portion for locking to the other of the tubular member or the pump flange, The other of the cylindrical member or the pump flange is provided with a latching portion for latching the claw portion. By pushing the bracket into the insertion port, the space between the bracket and the cylindrical member is sealed, and the bracket is It is locked to a cylindrical member.

  As described in claim 7, preferably, the tubular member has a tubular body portion having a tubular shape, a claw portion is provided on a distal end surface of the tubular body portion, and a latching portion is provided on the pump flange. It is characterized by being a hooked hole.

  As described in claim 8, preferably, the fuel tank has a side surface that rises from a peripheral edge of the bottom, and a fuel pipe that leads the fuel to the outside is connected to the fuel pump. It is characterized by being arranged outside.

  As described in claim 9, preferably, a filler pipe and a joint of a vent tube are integrally provided on the cylindrical member or the pump flange.

  In the invention according to claim 1, the reservoir is a separate body from the fuel pump, and is provided in the fuel tank in advance. The fuel tank has an insertion port for inserting the fuel pump therein, and the diameter of the insertion port is smaller than the outer shape of the reservoir. The reservoir is separate from the fuel pump module, and it is not necessary to form a large-diameter opening into which the reservoir is inserted, and the diameter of the insertion port can be made small enough to insert the fuel pump. As a result, the fuel pump mounting portion in the fuel tank can be reduced in size, and the capacity of the fuel tank can be increased.

  Further, a bracket for supporting the fuel pump is provided at the insertion port, and the fuel pump is disposed in the reservoir by the bracket. Since the bracket only needs to support the fuel pump without supporting the reservoir, the shape is simple, and only the bracket is attached to the insertion port, so that the attachment portion can also be simplified.

  In the invention according to claim 2, since the reservoir is formed integrally with the fuel tank in advance, the size of the insertion port of the fuel tank does not need to consider the size of the reservoir and is set to a small diameter. be able to.

  In the invention according to claim 3, since the reservoir is arranged at the center of the bottom, it is easy to store fuel in the reservoir. Further, since the insertion port is located immediately above the reservoir arranged at the center of the bottom, the fuel pump can be taken out by simply pulling the fuel pump module straight up, and maintenance of the fuel pump can be facilitated. .

  In the invention according to claim 4, the fuel tank has a vent valve for preventing the fuel from flowing out of the fuel tank, and the vent valve is integral with the bracket. By integrating the vent valve with the bracket, it is possible to arrange the vent valve at the insertion port, and compared with the case where the fuel tank capacity is reduced by providing a separate installation space for the vent valve, the capacity of the fuel tank can be reduced. Can be bigger.

  In the invention according to claim 5, the fuel tank has a side surface rising from the periphery of the bottom portion, and the insertion port is formed in the side surface portion. The fuel pump is supported by the bracket and is inserted into the reservoir obliquely from the insertion port formed in the side surface portion, so that the upper part of the fuel tank can be effectively used to increase the capacity of the fuel tank. .

  In the invention according to claim 6, a cylindrical member having a short axial length is provided outside the insertion port of the fuel tank, and the base end side of the bracket is formed in an annular shape. A pump flange for closing the end and attaching the bracket to the insertion port is provided. One of the cylindrical member or the pump flange is provided with a claw portion for locking the other of the cylindrical member or the pump flange, and the other of the cylindrical member or the pump flange is a hook for latching the claw portion. Since the stopper is provided, the fuel pump module can be coupled to the fuel tank with a single touch by simply pressing the pump flange against the tubular member. In addition, a seal member is provided on the outside of the annular part of the bracket to seal the space between the cylinder body and the bracket by pushing the bracket into the insertion slot. can do.

  In the invention according to claim 7, the cylindrical member has a cylindrical main body portion having a cylindrical shape, a claw portion is provided on the distal end surface of the cylindrical main body portion, and the latching portion is a hook provided on the pump flange. It is a hole. The fuel pump module can be coupled to the fuel tank and the space between the tubular member and the bracket can be realized with a simple configuration by simply pressing the pump flange against the tubular member.

  In the invention according to claim 8, the fuel tank has a side surface portion that rises from the periphery of the bottom portion, and the fuel pump is connected to a fuel pipe that guides the fuel to the outside. Since fuel piping is routed from the side to the outside, there is no need to route fuel piping at the top of the fuel tank, and the capacity of the fuel tank can be increased by effectively utilizing the top of the fuel tank. it can.

  In the invention which concerns on Claim 9, since the joint of a filler pipe and a vent tube is integrally provided in the cylindrical member or the pump flange, the number of parts can be reduced.

It is sectional drawing of the state which attached the fuel tank which concerns on this invention to the vehicle. FIG. 2 is a view taken in the direction of arrow 2 in FIG. 1. FIG. 3 is a sectional view taken along line 3-3 in FIG. 2. It is sectional drawing of the state which attached the fuel tank of the another aspect of FIG. 1 to the vehicle. FIG. 5 is an enlarged view of the fuel pump module shown in FIG. 4. It is principal part sectional drawing of the aspect which provided the latching | locking part in the edge part of the pump flange shown by FIG. It is principal part sectional drawing of the aspect which provided the nail | claw part in the edge part of the pump flange shown by FIG. It is principal part sectional drawing of the aspect which provided the hook hole in the cylindrical member shown by FIG.

  EMBODIMENT OF THE INVENTION The form for implementing this invention is demonstrated below based on an accompanying drawing. “Front”, “Rear”, “Left”, “Right”, “Up”, “Down” follow the direction seen from the driver, Fr is front, Rr is rear, L is left, R is right , Up indicates the upper side, and Dw indicates the lower side.

  A fuel tank system according to an embodiment will be described. As shown in FIG. 1, the fuel tank system 10 includes a fuel tank 20 that is disposed below the floor panel 11 and stores fuel, a fuel pump module 30 disposed in the fuel tank 20, and a fuel tank 20. A vent valve 40 provided on the upper portion 21 of the fuel tank 20 and a reservoir 50 provided integrally on the bottom portion 22 of the fuel tank 20.

  The fuel pump module 30 is for sending the fuel in the fuel tank 20 to the outside. The vent valve 40 is a fuel cutoff valve that allows the vaporized fuel in the fuel tank to flow out to a canister or the like and restricts the outflow of fuel when the fuel reaches a predetermined liquid level position. The reservoir 50 is for accumulating fuel at the bottom 22 of the fuel tank 20.

  The floor panel 11 is supported by the vehicle body frames 12 and 12. The fuel tank 20 is supported on the floor panel 11 or the vehicle body frame 12 by tank bands 13 and 13.

  The fuel tank 20 is made of resin and is formed by blow molding. The reservoir 50 is fixed in the fuel tank 20 at the time of blow molding of the fuel tank 20 by a technique in which the reservoir 50 is previously inserted and blow molded. The reservoir 50 may be molded integrally with the fuel tank 50 when the fuel tank 50 is molded.

  The fuel pump module 30 includes a pump flange 31 as an attachment portion, a bracket 32 extending from the pump flange 31 to the fuel tank 20, a fuel pump 33 supported by the tip of the bracket 32 and delivering fuel, and the fuel The strainer 34 is provided in the pump 33 and sucks the fuel stored in the reservoir 50, and the fuel pipe 35 is connected to the fuel pump 33 and guides the fuel to the outside.

  The fuel tank 20 has a side surface portion 23 that rises from the periphery of the bottom portion 22. The fuel pump module 30 is inserted into the insertion port 24 formed in the side surface portion 23. The fuel pump 33 is inserted into the reservoir 50 from above by being supported by a bracket 32 extending from the insertion port 24 into the fuel tank 20.

  Since there are no pipes and joints for the fuel pump 33 on the upper surface of the fuel tank 20, the space above the fuel tank 20 can be used effectively. As a result, the capacity of the fuel tank 20 can be increased even in an equivalent space.

  As shown in FIG. 2, the pump module 30 is disposed on the side surface portion 23 of the fuel tank 20. Therefore, the fuel pump module 30 can be attached and detached from the side of the vehicle, and maintenance of the fuel pump 33 (see FIG. 1) can be easily performed. In this case, it is not necessary to provide a maintenance lid on the floor panel 11 (see FIG. 1), the manufacturing cost of the floor panel 11 can be reduced, and the design freedom of the floor panel 11 can be improved.

  As shown in FIG. 3, a cylindrical member 25 having a short axial length is welded to the insertion port 24 of the fuel tank 20. The tubular member 25 includes a tubular body portion 25a having a tubular shape, two claw portions 25b and 25b provided on the distal end surface of the tubular body portion 25a, and a step portion 25c provided on the outer periphery of the tubular body portion 25a. Become.

  In addition, the fuel pump module 30 is provided on the pump flange 31 with hooking portions 31a and 31a (hereinafter referred to as hooking holes 31a and 31a) on which the claws 25b and 25b are hooked, and an annular portion on the base end side of the bracket 32. And a groove 32a into which the seal member 36 is fitted. The fuel pump module 30 is fixed to the cylindrical member 25 welded to the fuel tank 20 while being sealed with a seal member 36.

  The fuel pump module 30 can be coupled to the fuel tank 20 with one touch by pushing the pump flange 31 so that the claw portions 25b, 25b are caught in the catch holes 31a, 31a. The pump flange 31 is positioned by contacting the step portion 25c. Thus, the fuel pump module 30 can be easily attached to the fuel tank 20, and the number of assembling steps of the fuel pump module 30 can be shortened. A dedicated tool for maintenance is also unnecessary, and the fuel pump module 30 can be easily maintained.

  The mounting portion of the fuel pump module 30 is simply provided with a small insertion port 24 through which the fuel pump 33 (see FIG. 1) passes in the fuel tank 20 and welds the cylindrical member 25 having a simple shape. The mold used for molding the fuel tank 20 and the fuel pump module 30 is also simple, and the manufacturing cost can be reduced. Since the reservoir 50 (see FIG. 1) is a separate body, the pump flange 31 can be made smaller, the dimensions required for the mounting portion of the fuel pump module 30 can be minimized, and the periphery of the fuel tank 20 Space can be used effectively. As a result, the capacity of the fuel tank 20 can be increased even in an equivalent space.

  Next, another aspect of the fuel tank system 10 shown in FIG. 1 of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached about the same structure as the structure shown in FIG. 1, and detailed description is abbreviate | omitted. As shown in FIG. 4, the reservoir 50 is disposed at the center of the bottom 22 of the fuel tank 20. The vent flange 40 is provided with a vent flange 41. The structure of the vent flange 41 is the same as the structure of the pump flange 31 shown in FIG. Moreover, the cylindrical member shown in FIG. 3 is provided in the insertion port 24 to which the vent valve 40 is attached. That is, the vent flange 41 is simple, and the vent valve 40 can be attached to the fuel tank 20 with one touch.

  A bracket 32 extending downward is integrally provided on the vent valve 40, and a fuel pump 33 is provided at the lower end of the bracket 32. A fuel pipe 35 is connected to the fuel pump 33, and the fuel pipe 35 is routed to the outside via a pump flange 31 attached to the side surface portion 23 of the fuel tank 20.

  As shown in FIG. 5, in the fuel pump module 30, a bracket 32 is provided on the vent flange 41 of the vent valve 40 so as to extend downward, and the fuel pump 33 is fastened to the lower end of the bracket 32 by a fastening member 37. ing.

  The vent valve 40 includes a vent flange 41, a cylindrical main body portion 42 provided on the lower surface of the vent flange 41, a lid body 43 provided so as to close the lower end of the main body portion 42, and ascent and descent into the main body portion 42. A float 44 that is freely provided, an elastic member 45 that is provided on the upper surface of the lid 43 and urges the float 44 upward, and a communication pipe 46 that is provided so as to communicate with the vent flange 41 are provided. The lid body 43 is provided with a communication hole 43 a communicating with the inside of the fuel tank 20, a valve body 44 a is provided on the upper surface of the float 44, and a valve seat 46 a is provided at the lower end of the communication pipe 46.

  When the liquid level of the fuel in the fuel tank 20 rises, the fuel flows into the main body 42 from the communication hole 43a, and the float 44 rises. As a result, the valve body 44a comes into contact with the valve seat 46a and the outflow of fuel is blocked.

  The outer diameter of the vent valve 40 is smaller than the outer diameter of the fuel pump 33. That is, the diameter of the insertion port 24 can be made smaller than the outer diameter of the reservoir 50 (see FIG. 4). As a result, the mounting portion of the fuel pump module 30 can be reduced in size, and the space above the fuel tank 20 can be used effectively.

  Next, another embodiment of the cylindrical member 25 and the pump flange 31 shown in FIG. 3 of the present invention will be described based on the drawings. In addition, the same code | symbol is attached about the same structure as the structure shown in FIG. 3, and detailed description is abbreviate | omitted. As shown in FIG. 6, a cylindrical member 25 having a short axial length is welded to the insertion port 24 of the fuel tank 20. The cylindrical member 25 is provided in a cylindrical main body portion 25a having a cylindrical shape and a distal end portion of the cylindrical main body portion 25a, and is arranged so that inclined surfaces 25d and 25d face each other toward the outside of the insertion port 24. It consists of two claw portions 25b and 25b.

  Further, the fuel pump module 30 includes latching portions 31a and 31a that are provided on the pump flange 31 and on which the claw portions 25b and 25b are hooked, and a groove 32a that is provided on the annular portion on the base end side of the bracket 32 and into which the seal member 36 is fitted. Have The fuel pump module 30 is fixed to the cylindrical member 25 welded to the fuel tank 20 while being sealed with a seal member 36.

  The fuel pump module 30 is guided by the inclined surfaces 25d and 25d of the claw portions 25b and 25b by pushing the pump flange 31, and is hooked on the latching portions 31a and 31a, and can be coupled to the fuel tank 20 with one touch.

  Next, another embodiment of the cylindrical member 25 and the pump flange 31 shown in FIG. 3 of the present invention will be described based on the drawings. In addition, the same code | symbol is attached about the same structure as the structure shown in FIG. 3, and detailed description is abbreviate | omitted. As shown in FIG. 7, a cylindrical member 25 having a short axial length is welded to the insertion port 24 of the fuel tank 20. The tubular member 25 includes a tubular body portion 25a having a tubular shape, and latching portions 26 and 26 which are provided at the distal end portion of the tubular body portion 25a and are bent outward.

  The fuel pump module 30 includes claw portions 38 and 38 which are provided at the outer end of the pump flange 31 and are engaged with the latching portions 26 and 26, and a seal member 36 which is provided at the annular portion on the base end side of the bracket 32. And a groove 32a to be fitted. The fuel pump module 30 is fixed to the cylindrical member 25 welded to the fuel tank 20 while being sealed with a seal member 36.

  The fuel pump module 30 can be coupled to the fuel tank 20 with one touch by pushing the pump flange 31 so that the claw portions 38 and 38 are hooked on the latching portions 26 and 26.

  Next, still another aspect of the cylindrical member 25 and the pump flange 31 shown in FIG. 3 of the present invention will be described based on the drawings. In addition, the same code | symbol is attached about the same structure as the structure shown in FIG. 3, and detailed description is abbreviate | omitted. As shown in FIG. 8, a cylindrical member 25 having a short axial length is welded to the insertion port 24 of the fuel tank 20. The tubular member 25 includes a tubular body portion 25a having a tubular shape, a bent portion 27 which is provided at the distal end portion of the tubular body portion 25a and is bent outward, and a latch portion 26 formed on the bent portion. 26 (hereinafter referred to as hook holes 26, 26).

  Further, the fuel pump module 30 is provided with claw portions 38 and 38 which are provided at the outer end of the pump flange 31 and are engaged with the hook holes 26 and 26, and a seal member 36 which is provided at an annular portion on the base end side of the bracket 32. Groove 32a. The fuel pump module 30 is fixed to the cylindrical member 25 welded to the fuel tank 20 while being sealed with a seal member 36.

  The fuel pump module 30 can be coupled to the fuel tank 20 with one touch by pushing the pump flange 31 so that the claw portions 38 are caught in the catch holes 26.

The operation of the fuel tank system 10 described above will be described next.
As shown in FIG. 1 and FIG. 4, the reservoir 50 is separate from the fuel pump module 30 and is provided in the fuel tank 20 in advance, so that a large-diameter opening into which the reservoir 50 is inserted is formed. There is no need, and the diameter of the insertion port 24 can be made small enough to allow the fuel pump 20 to be inserted. As a result, the mounting portion of the fuel pump 33 in the fuel tank 20 can be downsized and the capacity of the fuel tank 30 can be increased.

  Further, the bracket 32 is simple in shape because it only needs to support the fuel pump 33 without supporting the reservoir 50, and only the bracket 32 is attached to the insertion port 24, so that the attachment portion can be simplified. Can do.

  As shown in FIGS. 1 and 4, the reservoir 50 is formed integrally with the fuel tank 20 in advance, and therefore the size of the insertion port 24 of the fuel tank 20 needs to consider the size of the reservoir 50. It can be set to a small diameter.

  As shown in FIG. 4, the reservoir 50 is arranged at the center of the bottom 22 of the fuel tank 20, so that fuel can be easily stored in the reservoir 50. Further, since the insertion port 24 is located immediately above the reservoir 50 disposed in the center of the bottom portion 22, the fuel pump 33 can be taken out simply by pulling the fuel pump module 30 straight upward, and the fuel pump 33 Can be easily maintained.

  As shown in FIGS. 4 and 5, the fuel tank 20 has a vent valve 40 for preventing a back flow of fuel in the fuel tank 20, and the vent valve 40 is integral with the bracket 32. By integrating the vent valve 40 with the bracket 32, the vent valve 40 can be disposed at the insertion port 24 portion. Compared to the case where the capacity of the fuel tank 20 is reduced by providing a separate mounting space for the vent valve 40. The capacity of the fuel tank 20 can be increased.

  As shown in FIGS. 1 and 2, the fuel tank 20 has a side surface portion 23 that rises from the periphery of the bottom portion 22, and the insertion port 24 is formed in the side surface portion 23. The fuel pump 33 is supported by the bracket 32 and inserted into the reservoir 50 obliquely from the insertion port 24 formed in the side surface portion 23, so that the upper part 21 of the fuel tank 20 can be used effectively and the fuel tank 20. The capacity of can be increased.

  As shown in FIG. 3, the base end side of the bracket 32 is formed in an annular shape, and the annular portion is provided with a pump flange 31 for closing the end portion and attaching the bracket 32 to the insertion port 24. Since the pump flange 31 is provided with a hooking hole 31 a that is locked to the claw portion 25 b, the fuel pump module 30 can be coupled to the fuel tank 20 with one touch only by pressing the pump flange 31 against the tubular member 25. it can. Further, a seal member 36 is provided outside the annular portion of the bracket 32 so as to seal the space between the cylinder main body 25a and the bracket 32 by pushing the bracket 32 into the insertion port 24. Therefore, the bracket 32 is inserted. It can be sealed simply by pushing it into the mouth 24.

  As shown in FIGS. 1 and 4, since the fuel pipe 35 is routed to the outside from the side surface portion 23, there is no need to route the fuel pipe 35 above the fuel tank 20. The capacity of the fuel tank 20 can be increased by effectively utilizing the upper part.

  In the fuel tank system of the present invention, a filler pipe and a vent tube joint may be integrated with the tubular member 25 or the pump flange 31 welded to the fuel tank 20. In this case, the number of parts to support can be reduced.

  The fuel tank system of the present invention is suitable for a four-wheeled vehicle.

  DESCRIPTION OF SYMBOLS 10 ... Fuel tank system, 20 ... Fuel tank, 22 ... Bottom part, 23 ... Side part, 24 ... Insertion port, 25 ... Cylindrical member, 25a ... Cylindrical body part, 25b ... Nail | claw part, 26 ... Latch part (hook hole) ), 30 ... Fuel pump module, 31 ... Pump flange, 31a ... Hook (hanging hole), 32 ... Bracket, 33 ... Fuel pump, 35 ... Fuel piping, 38 ... Claw, 40 ... Vent valve, 50 ... Reservoir .

Claims (9)

In a fuel tank system having a reservoir for storing fuel at the bottom of the fuel tank and arranging a fuel pump in the reservoir,
The reservoir is provided in the fuel tank separately from the fuel pump,
An insertion port for inserting the fuel pump into the fuel tank is formed in the fuel tank,
The diameter of the insertion port is smaller than the outer shape of the reservoir,
The insertion port is provided with a bracket for supporting the fuel pump,
The fuel tank system, wherein the fuel pump is disposed in the reservoir by the bracket.   The fuel tank system according to claim 1, wherein the reservoir is formed integrally with the fuel tank. The reservoir is disposed in the center of the bottom;
3. The fuel tank system according to claim 1, wherein the insertion port is located immediately above the reservoir disposed in the center of the bottom portion. 4. The fuel tank has a vent valve for preventing the fuel from flowing out of the fuel tank,
The fuel tank system according to claim 1 or 2, wherein the vent valve is integral with the bracket. The fuel tank has a side portion that rises from a peripheral edge of the bottom portion,
The insertion port is formed in the side part,
3. The fuel tank according to claim 1, wherein the fuel pump is supported by the bracket and is inserted into the reservoir obliquely from the insertion port formed in the side surface portion. 4. system. A cylindrical member is provided outside the insertion port of the fuel tank,
The base end side of the bracket has an annular shape, a seal member provided outside the annular portion, and a pump flange that closes the end of the annular portion,
One of the cylindrical member or the pump flange is provided with a claw portion for locking to the other of the cylindrical member or the pump flange,
The other of the cylindrical member or the pump flange is provided with a latching portion for latching the claw portion,
6. The bracket according to claim 1, wherein a space between the bracket and the cylindrical member is sealed by pushing the bracket into the insertion port, and the bracket is locked to the cylindrical member. The fuel tank system according to any one of claims. The tubular member has a tubular body portion that has a tubular shape, and the claw portion is provided on a distal end surface of the tubular body portion,
The fuel tank system according to claim 6, wherein the hooking portion is a hooking hole provided in the pump flange. The fuel tank has a side portion that rises from a peripheral edge of the bottom portion,
The fuel pump is connected to a fuel pipe for guiding the fuel to the outside,
The fuel tank system according to claim 3, wherein the fuel pipe is routed to the outside from the side surface portion.   The fuel tank system according to claim 6, wherein a joint of a filler pipe and a vent tube is integrally provided on the cylindrical member or the pump flange.

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