JP2018123760A - Fuel tank - Google Patents

Abstract

An object of the present invention is to improve the attachment of a filter member to a delivery pipe. A fuel tank (1) has a storage part (10) for storing fuel, a suction port (22) for sucking fuel in the storage part (10), a delivery pipe (20) for sending the sucked fuel to the engine, and a suction port (22). And a surrounding filter member 40. The delivery pipe 20 has a bent part 24 that is bent, and the filter member 40 is opposite to the insertion part 45 through which the delivery pipe 20 is inserted and the suction port 22 when viewed from the bent part 24 of the delivery pipe 20. And a locking portion 48 that is locked to the side portion. [Selection] Figure 3

Description

  The present invention relates to a fuel tank mounted on a vehicle.

A vehicle such as a truck is provided with a fuel tank for storing fuel supplied to the engine.
The fuel tank is provided with a storage portion for storing fuel, a delivery pipe for sucking the fuel contained in the accommodation portion and sending it to the engine, and a suction port of the delivery pipe for suppressing foreign matter in the fuel from being sucked in. And a filter member. The filter member is detachably attached to the delivery pipe.

JP 2009-108710 A

  By the way, a cylindrical metal member having a large number of holes formed on the outer peripheral surface is used as the filter member. When such a filter member is attached to the delivery pipe, a gasket or the like is interposed between the filter member and the delivery pipe and fixed with a fastening member such as a screw. Is bad.

  Therefore, the present invention has been made in view of these points, and an object thereof is to improve the attachment property of the filter member to the delivery pipe.

In one aspect of the present invention, the fuel cell has a housing portion that houses fuel, a suction port that sucks the fuel in the housing portion, a delivery pipe that delivers the sucked fuel to the engine, and a filter that surrounds the suction port A member, and the delivery pipe has a bent portion that is bent, and the filter member is inserted through the delivery pipe and the suction portion as viewed from the bent portion of the delivery pipe. There is provided a fuel tank having a locking portion locked to a portion opposite to the mouth.
According to such a fuel tank, when the filter member is attached to the delivery pipe, the fastening part is latched above the bent part after the delivery pipe passes through the insertion part, so that a fastening member such as a screw is not used. Even so, the filter member is secured to the delivery tube. Thereby, the attachment property to the delivery pipe of a filter member can be improved.

  The filter member may further include a cylindrical main body that surrounds the delivery pipe, and the locking portion may extend in the axial direction from the main body.

  Moreover, the said filter member is good also as having further the cylindrical part extended along the axial direction from the said insertion part.

  The bent portion may be bent such that an angle formed with the axial direction of the insertion portion is an obtuse angle.

  According to the present invention, it is possible to improve the attachment property of the filter member to the delivery pipe.

It is a figure for demonstrating an example of the external appearance structure of the fuel tank 1 which concerns on one Embodiment of this invention. 2 is a diagram for explaining an example of an internal configuration of a fuel tank 1. FIG. 4 is a diagram for explaining an example of a configuration of a filter member 40. FIG. It is a figure for demonstrating an example of the fixed state with respect to the delivery pipe | tube 20 of the filter member 40. FIG. It is a figure which shows the state of the filter member 40 and the delivery pipe | tube 20 before attachment. It is a figure which shows the state during attachment of the filter member. It is a figure which shows the state during attachment of the filter member.

<Configuration of fuel tank>
The configuration of the fuel tank 1 according to one embodiment of the present invention will be described with reference to FIGS. 1 and 2.

  Drawing 1 is a figure for explaining an example of the appearance composition of fuel tank 1 concerning one embodiment. FIG. 2 is a diagram for explaining an example of the internal configuration of the fuel tank 1. In FIG. 1, the delivery pipe 20 in the fuel tank 1 is indicated by a broken line.

  The fuel tank 1 is mounted on a truck which is an example of a vehicle. The fuel tank 1 stores fuel supplied to an engine (not shown) of the vehicle. As shown in FIGS. 1 and 2, the fuel tank 1 includes a housing portion 10, a delivery pipe 20, a return pipe 30, an atmosphere release valve 35, and a filter member 40.

  The accommodating part 10 accommodates fuel. The accommodating part 10 has a box shape and has a space 12 for accommodating fuel therein. The fuel in the storage unit 10 is appropriately supplied from the fuel supply port. Although the accommodating part 10 accommodates light oil here, it is not limited to this, For example, you may accommodate gasoline.

  The delivery pipe 20 is a feed pipe that sucks the fuel in the housing 10 and delivers it to the engine. The delivery pipe 20 has a suction port 22 for sucking fuel at the tip. The delivery pipe 20 is fixed to the upper part of the accommodating portion 10 together with the return pipe 30. The delivery pipe 20 is disposed between the accommodating portion 10 and the engine, and a pump (not shown) for sucking fuel is provided in the middle.

  As shown in FIG. 1, the delivery tube 20 is bent in the housing portion 10. Specifically, the delivery pipe 20 is bent so that the suction port 22 is located at the lower center of the housing portion 10. For example, the delivery tube 20 has two bent portions 24 and 26. Thereby, for example, even when the water level of the fuel becomes oblique in the housing portion 10 during traveling of the vehicle, the fuel is easily sucked from the suction port 22.

  The return pipe 30 is a return pipe that returns the fuel that has not been consumed by the engine into the housing unit 10. The return pipe 30 has an opening 32 through which the fuel returned from the engine falls into the accommodating portion 10. In addition, since the fuel which falls into the accommodating part 10 from the return pipe 30 has passed through the engine, the temperature is higher than when it is supplied to the engine.

  The air release valve 35 is a valve for taking in air into the housing portion 10 to be equal to the atmospheric pressure or discharging it outside. By taking in air into the housing part 10, the inside of the housing part 10 is prevented from becoming negative pressure due to the suction of fuel by the pump, so that the fuel can be sucked in smoothly.

  The filter member 40 has a function of suppressing foreign matter in the fuel from being sucked from the suction port 22. Examples of the foreign matter include icing matter in which the moisture of the fuel is frozen at low temperatures, and dust.

  The filter member 40 is attached to the distal end portion of the delivery pipe 20 as shown in FIG. Specifically, the filter member 40 is a cylindrical member and is attached around the suction port 22 in the delivery pipe 20. The filter member 40 is fixed above the bent portion 24 of the delivery pipe 20 without using a fastening member such as a screw.

<Detailed configuration of filter member>
A detailed configuration of the filter member 40 will be described with reference to FIGS. 3 and 4.

  FIG. 3 is a diagram for explaining an example of the configuration of the filter member 40. FIG. 4 is a view for explaining an example of a fixed state of the filter member 40 with respect to the delivery pipe 20. In FIG. 4, the mesh 50 shown in FIG. 3 is omitted for convenience of explanation.

  The filter member 40 is made of resin. As shown in FIGS. 3 and 4, the filter member 40 includes a main body portion 42, a shielding wall 44, an insertion portion 45, a cylindrical portion 46, an extension portion 47, and a locking portion 48.

  The main body 42 is formed in a cylindrical shape as shown in FIG. That is, the main body 42 is positioned so as to surround the delivery pipe 20 (specifically, the suction port 22). The bottom surface 42a of the main body 42 faces the suction port 22 with a predetermined distance.

  As shown in FIG. 4, an opening 42 b is formed in the main body 42 along the circumferential direction. A mesh 50 (FIG. 3) is provided in the opening 42b. The mesh 50 is formed in a mesh shape and prevents passage of foreign matters in the fuel. For example, the mesh 50 prevents moisture from passing through at a low temperature.

  The shielding wall 44 is a portion where the mesh 50 is not provided in the main body portion 42, and is an arcuate wall on the side facing the fuel drop point from the return pipe 30 (see FIG. 2). The shielding wall 44 is located between the fuel drop point and the suction port 22, and has a function as a regulating unit that regulates the movement of the fuel that has dropped from the return pipe 30 to the suction port 22. Since the mesh 50 is not provided on the shielding wall 44, the shielding wall 44 shields the movement of the fuel that has fallen from the return pipe 30 to the suction port 22.

  The insertion part 45 is a part through which the delivery pipe 20 is inserted. The insertion portion 45 is formed with a through hole (not shown) through which the delivery tube 20 can be inserted. When the filter member 40 is attached to the delivery pipe 20, the insertion part 45 is inserted from the suction port 22 side of the delivery pipe 20. In addition, the diameter of the through-hole of the insertion part 45 is larger than the outer diameter of the delivery pipe | tube 20 so that the filter member 40 can be attached smoothly.

  The cylindrical portion 46 is a cylindrical portion that extends from the insertion portion 45 along the axial direction. As shown in FIG. 3, the cylindrical portion 46 is formed on both sides of the insertion portion 45 in the axial direction. By providing the cylindrical portion 46, the movement of the filter member 40 in the radial direction of the delivery pipe 20 can be restricted.

  As shown in FIG. 4, the extending portion 47 is a portion that extends in the axial direction from the main body portion 42. The extending portion 47 extends vertically upward from the cylindrical portion 46.

  As shown in FIG. 4, the locking portion 48 is provided on the distal end side of the extending portion 47 and is a portion locked to the delivery pipe 20. The locking portion 48 is locked to a portion (a portion above the bending portion 24) opposite to the suction port 22 when viewed from the bending portion 24 of the delivery pipe 20. The distal end of the locking portion 48 is hooked on the delivery pipe 20. In addition, when the latching | locking part 48 is hooked on the delivery pipe | tube 20, the latching | locking part 48 is perpendicular | vertical with respect to the part which the delivery pipe | tube 20 is caught. Thereby, the filter member 40 can be fixed to the delivery pipe 20 with a simple configuration.

  By the way, the bent portion 24 of the delivery pipe 20 is bent so that the angle formed with the axial direction of the cylindrical filter member 40 becomes an obtuse angle. In such a case, since the insertion portion 45 and the cylindrical portion 46 described above restrict the movement of the filter member 40 in the radial direction, it is difficult for the filter member 40 to move obliquely upward along the delivery pipe 20. As a result, the displacement of the filter member 40 fixed to the delivery pipe 20 (specifically, the distance between the bottom surface 42a of the filter member 40 and the suction port 22 fluctuates) can be suppressed. The fuel can be sucked in properly.

<Example of filter member installation>
An example of attaching the filter member 40 to the delivery pipe 20 will be described with reference to FIGS.

  FIG. 5 is a view showing a state of the filter member 40 and the delivery pipe 20 before attachment. 6 and 7 are views showing a state in which the filter member 40 is being attached. 5 to 7, the mesh 50 (FIG. 3) is omitted for convenience of explanation.

  Here, description will be made assuming that the filter member 40 is separated from the delivery pipe 20 as shown in FIG. First, the operator moves the filter member 40 in the arrow direction shown in FIG. 5 in a state where the filter member 40 is parallel to the axial direction of the delivery pipe 20.

  As a result, as shown in FIG. 6, the delivery tube 20 is inserted into the insertion portion 45 of the filter member 40. In addition, before the delivery pipe | tube 20 starts insertion with respect to the through-hole of the insertion part 45, the latching | locking part 48 contacts the delivery pipe | tube 20. However, unlike the fixed state shown in FIG. 4, the locking portion 48 is not locked to the delivery tube 20, and the insertion is continued in a state where the tip (edge) of the locking portion 48 is in contact with the delivery tube 20. (See FIG. 7). The locus of movement of the tip of the locking portion 48 is indicated by a one-dot chain line in FIG.

  Thereafter, when the filter member 40 is moved until the locking portion 48 gets over the bent portion 24 of the delivery pipe 20 and reaches the position shown in FIG. 4, the locking portion 48 is caught by the delivery pipe 20 and locked. . As described above, since the engaging portion 48 is naturally caught by the delivery pipe 20 only by moving the filter member 40, workability is improved.

<Effect in this embodiment>
According to the embodiment described above, as shown in FIG. 3, the delivery pipe 20 has the bent portion 24 bent at the suction port 22 side. Further, the filter member 40 surrounding the suction port 22 is locked to the insertion portion 45 through which the delivery pipe 20 is inserted and a portion on the opposite side of the suction port 22 when viewed from the bent portion 24 of the delivery pipe 20. And a locking portion 48.
With the above configuration, when the filter member 40 is attached to the delivery pipe 20, the fastening part 48 is fastened above the bent part 24 after the delivery pipe 20 passes through the insertion part 45, thereby fastening screws or the like. The filter member 40 is fixed to the delivery pipe 20 without using a member. Thereby, the attachment property to the delivery pipe | tube 20 of the filter member 40 can be improved.
In addition, since the insertion portion 45 and the cylindrical portion 46 are provided in the filter member 40, the displacement of the filter member 40 after attachment with respect to the delivery pipe 20 can be suppressed, so that the fuel can be appropriately sucked by the delivery pipe 20.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Fuel tank 10 Accommodating part 20 Delivery pipe 22 Suction port 24 Bending part 40 Filter member 42 Main body part 45 Insertion part 46 Cylindrical part 48 Locking part

Claims (4)

A storage section for storing fuel;
A delivery pipe for sucking the fuel in the housing portion and delivering the sucked fuel to the engine;
A filter member surrounding the suction port;
With
The delivery tube has a bent portion that is bent;
The filter member is
An insertion portion through which the delivery pipe is inserted;
A fuel tank, comprising: a locking portion locked to a portion opposite to the suction port as viewed from the bent portion of the delivery pipe. The filter member further includes a cylindrical main body portion surrounding the delivery pipe,
The locking portion extends in the axial direction from the main body portion,
The fuel tank according to claim 1. The filter member further includes a cylindrical portion extending along the axial direction from the insertion portion.
The fuel tank according to claim 1 or 2. The bent portion is bent such that an angle formed with the axial direction of the insertion portion is an obtuse angle.
The fuel tank according to any one of claims 1 to 3.

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