JP2019019727A - Fuel supply device - Google Patents

Abstract

To provide a fuel supply device for improving the mounting/demounting workability of a fuel pipe on/from a fuel discharge pipe while suppressing the breakage of the fuel discharge pipe when a vehicle overturns.SOLUTION: A cover member 40 of a fuel supply device 38 is provided to block a bottom wall 26a of a saddle type fuel tank 10, and a discharge pipe 58 is provided outside the cover member 40 for discharging fuel to the external of the fuel tank 10. A connection part 66 of the discharge pipe 58 is formed toward the width-direction center side of a vehicle, and arranged so that an internal combustion engine E and a vehicle body frame 28 do not overlap each other in the width direction of the vehicle. The discharge pipe 58 is arranged so that a take-out part 64 protruded downward from the cover member 40 is outside in the width direction with respect to the width-direction center of the cover member 40.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fuel supply device for supplying fuel from a fuel tank of a saddle-ride type vehicle to an internal combustion engine.

  2. Description of the Related Art Conventionally, there is known a fuel supply device for supplying fuel in a fuel tank to an internal combustion engine in a saddle-ride type vehicle in which a driver rides over a seat. For example, as disclosed in Patent Document 1, the fuel supply device is attached to a bottom wall of a saddle type fuel tank in a motorcycle, a lid member that closes an opening of the bottom wall, and a lid member that is provided on the lid member. And a pump module including a fuel pump.

  The lid member is integrally provided with a discharge pipe, a connector, a drive circuit, a fuel passage, and the like, while the pump module includes a fuel pump, a suction filter, an arm, a float, and the like, and the fuel pump is a lid member Is placed horizontally.

  The fuel supply device is mounted such that the discharge pipe, the connector, etc. are arranged outside the fuel tank, the fuel pump, the suction filter, etc. are inside the fuel tank, and the opening is closed by the lid member. The

JP 2006-144596 A

  However, in the fuel supply device described above, the discharge pipe of the fuel supply device extends along the front-rear direction of the vehicle. For example, when the vehicle falls, the fuel supply device may be damaged by contact with the ground or an obstacle. There is.

  The present invention has been made in consideration of the above-described problems, and can suppress the breakage of the fuel discharge pipe when the vehicle falls, and at the same time improve the workability of attaching and detaching the fuel pipe to the fuel discharge pipe. An object of the present invention is to provide a simple fuel supply device.

In order to achieve the above object, the present invention provides a fuel tank mounted on a vehicle body frame extending in the front-rear direction in a saddle-ride type vehicle, and the fuel tank is a recess in which the vehicle body frame is inserted in the center in the width direction of the bottom wall. In the fuel supply device that is divided into the bottom wall by being formed, is arranged inside through a lid member that covers the opening of one bottom wall, and supplies the fuel inside the fuel tank to the outside.
The fuel supply device includes a fuel discharge pipe that protrudes from the lid member to the outside of the fuel tank and discharges the fuel to the outside.
The fuel discharge pipe has a connecting portion to which a fuel pipe for supplying fuel to the internal combustion engine is connected, the connecting portion is directed toward the center in the width direction of the vehicle in the fuel discharging direction, and from the vehicle width direction. It is characterized by being arranged at a position below the body frame as seen and not overlapping the internal combustion engine.

  According to the present invention, the fuel tank is provided on the vehicle body frame extending in the front-rear direction in the saddle-ride type vehicle, and the fuel supply device is provided on one of the bottom walls of the fuel tank via the lid member that covers the opening. Arranged inside. This fuel supply device includes a fuel discharge pipe projecting from the lid member to the outside of the fuel tank, and a connecting portion to which a fuel pipe for supplying fuel to the internal combustion engine is connected is directed toward the center in the width direction of the vehicle. And it is arrange | positioned in the position which does not overlap with an internal combustion engine below with respect to a vehicle body frame seeing from the vehicle width direction.

  Therefore, for example, when a saddle-ride type vehicle falls over or touches an obstacle on its side, the connection part of the fuel discharge pipe directed toward the center in the width direction is less likely to come into contact with the ground or the obstacle, thereby preventing damage. In addition, when the fuel pipe is attached to and detached from the connecting portion from the center side in the vehicle width direction, the connecting portion does not overlap the internal combustion engine and the vehicle body frame in the vehicle width direction, which is the attaching and detaching direction. It is possible to easily attach and detach the fuel pipe without worrying about it, and it is possible to improve the detachability workability.

  The fuel discharge pipe has a take-out portion that protrudes downward from the lid member and communicates with the connection portion, and the take-out portion is located outside in the width direction with respect to the center in the width direction of the lid member extending in the vehicle front-rear direction. For example, as compared with the case where the extraction portion is arranged at the center in the width direction of the lid member, the connecting portion can be arranged offset toward the outside in the vehicle width direction. It is possible to increase the distance between the vehicle body frame inserted in the center in the width direction and the connecting portion. Therefore, the attachment / detachment work of the fuel pipe with respect to the connection portion can be performed more easily, and the attachment / detachment workability can be further improved.

  According to the present invention, the following effects can be obtained.

  That is, a fuel supply device is disposed inside a fuel tank provided on a vehicle body frame in a saddle-ride type vehicle via a lid member that covers an opening on one of its bottom walls. A fuel discharge pipe projecting from the fuel tank to the outside of the fuel tank is provided, and a connection portion to which a fuel pipe for supplying fuel to the internal combustion engine is connected is directed toward the center in the width direction of the vehicle. Therefore, for example, even when a saddle-ride type vehicle falls, damage can be suppressed because the connection portion is unlikely to contact the ground or an obstacle.

  In addition, when the fuel pipe is attached to and detached from the connecting portion from the center in the vehicle width direction by disposing the connecting portion below the vehicle body frame when viewed from the vehicle width direction and at a position not overlapping the internal combustion engine. In the vehicle width direction, which is the attaching / detaching direction, the work can be performed without worrying about the interference with the internal combustion engine and the vehicle body frame, so that the attaching / detaching workability can be improved.

1 is an overall cross-sectional view of a fuel tank to which a fuel supply device according to an embodiment of the present invention is mounted. It is sectional drawing along the II-II line of FIG. It is a bottom view of the fuel tank shown in FIG. FIG. 4 is an enlarged bottom view of a fuel supply device in the fuel tank shown in FIG. 3.

  Preferred embodiments of the fuel supply apparatus according to the present invention will be described below and described in detail with reference to the accompanying drawings. In FIG. 1, reference numeral 10 indicates a fuel tank of a saddle-ride type vehicle on which a fuel supply device according to an embodiment of the present invention is mounted. Hereinafter, as shown in FIG. 1, the traveling direction of the vehicle will be described as the front (arrow A direction), and the opposite direction will be described as the rear (arrow B direction).

  The fuel tank 10 is mounted on, for example, a motorcycle that is a saddle-ride type vehicle, and as shown in FIGS. 1 to 3, an upper cover 12 having a U-shaped cross section, and an inner portion of the upper cover 12. Is formed in a hollow shape from the lower cover 14 that covers the lower portion, and gasoline, which is fuel, is supplied into the interior from a fuel filler port (not shown).

  The upper cover 12 is formed, for example, such that a substantially flat ceiling portion 16 is gently inclined downward from the front to the rear, and in the width direction (arrow C direction) orthogonal to the traveling direction of the motorcycle. A pair of side walls 18a, 18b extending downward from the outer edge of the ceiling 16 is formed. At the lower ends of the side walls 18a and 18b, a first brim part 22 is formed extending linearly downward, and is connected to a second brim part 34 of the lower cover 14 described later.

  The lower cover 14 is formed with a flange portion 24 formed at the center thereof and bulging upward, and a set of bottom walls 26a and 26b extending from the lower end portion of the flange portion 24 toward the outer side in the width direction (arrow C direction). The flange portion 24 is formed in a U-shaped cross section that opens downward, and penetrates along the front-rear direction of the vehicle (directions of arrows A and B). The body frame 28 of the motorcycle is inserted into the flange 24.

  As shown in FIGS. 1 and 2, the vehicle body frame 28 has, for example, a circular cross section, and is provided so as to be gently inclined downward from the front toward the rear along the inside of the flange portion 24.

  One bottom wall 26a has an opening 30 to which the fuel supply device 38 is attached. The opening 30 is, for example, an elongated ellipse along the vehicle front-rear direction (arrow A, B direction). (Refer to FIG. 3).

  A plurality of shaft-like bolt portions 32 projecting downward from the outer surface of the opening 30 in the bottom wall 26a are formed, and a retainer 46 described later is fixed.

  Further, the bottom walls 26a, 26b extend substantially horizontally along the width direction (arrow C direction), and a second flange 34 bent at a substantially right angle downward is formed on the outer edge thereof. . The second flange 34 protrudes downward by a predetermined height with respect to the bottom walls 26a and 26b, and abuts against the first flange 22 of the upper cover 12 in the width direction.

  The tank chamber 36 that is welded in a state where the first and second flange portions 22 and 34 are in contact with each other and is sealed by the upper cover 12 and the lower cover 14 is formed inside. .

  Next, the fuel supply device 38 mounted on the fuel tank 10 will be described. The fuel supply device 38 is provided on one bottom wall 26 a having the opening 30 in the lower cover 14, and includes a flat lid member 40 and a pump module 42 provided on one surface of the lid member 40.

  The lid member 40 is formed in, for example, a substantially oval shape that can be closed larger than the opening 30 of the lower cover 14, and is provided so as to contact the outside of the bottom wall 26 a of the fuel tank 10 so as to close the opening 30. It is done.

  A retainer 46 having an oblong hole 44 in the center is provided at the outer edge of the lid member 40 so that the outer edge is between the bottom wall 26 a of the fuel tank 10 and the retainer 46. Sandwiched between. The retainer 46 is formed in a substantially rectangular shape, and the bolt portion 32 of the lower cover 14 is inserted into bolt holes (not shown) formed at the four corners of the retainer 46 and the nut 50 is screwed into the retainer 46. Is fixed to the bottom wall 26a with the lid member 40 sandwiched therebetween.

  That is, the lid member 40 is fixed in a state where it abuts against the bottom wall 26 a of the fuel tank 10 and closes the opening 30.

  The pump module 42 is connected to a fuel pump 52 provided on one surface of the lid member 40 facing the inside of the fuel tank 10, a suction pipe 54 that sucks fuel into the fuel pump 52, and an end of the suction pipe 54. A filter 56, a discharge pipe (fuel discharge pipe) 58 that is provided on the other surface of the lid member 40 on the outside of the fuel tank 10 and discharges the fuel sucked into the fuel pump 52, and the fuel pump 52. And a connector 60 to be energized.

  The fuel pump 52 employs, for example, a brushless motor in the motor portion, and is disposed along the horizontal direction (arrow A, B direction) so that the axis thereof is substantially parallel to the lid member 40. The vehicle is fixed on the vehicle front side (arrow A direction).

  The fuel pump 52 is electrically connected to a connector 60 disposed outside the fuel tank 10, and a coupler connected to a controller (not shown) is connected to the connector 60, whereby an input control signal is input. The drive is controlled based on

  The suction pipe 54 extends rearward (in the direction of arrow B in FIG. 1) with respect to the fuel pump 52, and a filter 56 for removing impurities contained in the fuel is attached to the end of the suction pipe 54. Yes.

  The filter 56 is formed, for example, in a bag shape so as to stand up along the front-rear direction of the vehicle (the directions of arrows A and B), and the end of the suction pipe 54 is inserted therein.

  As shown in FIGS. 1 to 4, the discharge pipe 58 extends to the side with respect to the take-out portion (take-out portion) 64 connected to the fuel pump 52 via the lid member 40 and the take-out portion 64. 4 and the take-out portion 64 protrudes downward (in the direction of arrow D) by a predetermined height with respect to the lid member 40, and as shown in FIG. It is provided at a position that is offset from the width direction center L to the outside in the width direction of the vehicle (in the direction of arrow C1).

  The connecting portion 66 extends, for example, toward the inside in the width direction of the vehicle (in the direction of the arrow C2) with respect to the takeout portion 64, and a fuel tube (fuel piping) via a connecting member 68 such as a snap fit at its end. 70 is connected. That is, the connecting member 68 is attached to the connecting portion 66 from the center in the width direction of the fuel tank 10 toward the outer side in the width direction (arrow C1 direction).

  Further, as shown in FIG. 1, the connecting portion 66 is rearward (in the direction of arrow B) with respect to the internal combustion engine E provided below the fuel tank 10 (in the direction of arrow D) as seen from the vehicle width direction, and , Provided below the body frame 28 at a non-overlapping position.

  In other words, the connecting portion 66 is disposed so as to face a space with a relatively large space between the internal combustion engine E and the lower part of the vehicle body frame 28.

  Further, as shown in FIGS. 2 and 3, in the pump module 42, the discharge pipe 58 and the connector 60 disposed outside the fuel tank 10 are connected to the first and second flange portions 22 and 34 of the fuel tank 10. It is arrange | positioned in the position which becomes the width direction inner side (arrow C2 direction).

  Under the driving action of the fuel pump 52, the fuel in the fuel tank 10 passes through the filter 56 and is sucked into the inside through the suction pipe 54, and then discharged from a pump unit (not shown) through the extraction unit 64 and the connection unit 66. It is led out to the fuel tube 70. Thereafter, fuel is supplied from the fuel tube 70 to the injector of the internal combustion engine E.

  As described above, in the present embodiment, in the motorcycle that is a saddle-ride type vehicle, the fuel supply device 38 is provided on the bottom wall 26 a of the fuel tank 10, and the lid member 40 is provided outside the fuel tank 10. The connecting portion 66 of the discharge pipe 58 is directed inward in the width direction of the vehicle (arrow C2 direction).

  Therefore, for example, even when a motorcycle falls or comes in contact with an obstacle on the side such as a power pole or wall, the connection portion 66 is less likely to contact the ground or an obstacle, and the damage can be suppressed. it can.

  Further, when the connecting member 68 to which the fuel tube 70 is connected is attached to and detached from the connecting portion 66 from the center in the vehicle width direction, the connecting portion 66 is connected to the internal combustion engine E and the vehicle body frame in the vehicle width direction that is the attaching / detaching direction. Since it does not overlap with 28, the attaching and detaching work of the connecting member 68 can be easily performed without worrying about interference with both.

  Further, in the fuel supply device 38, the take-out portion 64 of the discharge pipe 58 that protrudes downward (in the direction of arrow D) from the lid member 40 is further outward in the vehicle width direction (in the direction of arrow C1) than the center L in the width direction of the lid member 40. For example, the connecting portion 66 to which the fuel tube 70 is connected is offset to the outside in the vehicle width direction (arrow C1 direction) as compared with the case where the take-out portion 64 is arranged at the center in the width direction. Can be arranged. Therefore, it is possible to dispose the connecting portion 66 away from the vehicle body frame 28 inserted through the center of the fuel tank 10 in the width direction, and the attaching / detaching work of the connecting member 68 to the connecting portion 66 can be performed more easily.

  In addition, the fuel supply device according to the present invention is not limited to the above-described embodiment, and it is needless to say that various configurations can be adopted without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Fuel tank 12 ... Upper cover 14 ... Lower cover 24 ... Gutter part 26a, 26b ... Bottom wall 28 ... Body frame 38 ... Fuel supply device 40 ... Cover member 42 ... Pump module 52 ... Fuel pump 54 ... Intake pipe 56 ... Filter 58 ... Discharge pipe 60 ... Connector 64 ... Extraction part 66 ... Connection part 68 ... Connection member

Claims (2)

In a saddle-ride type vehicle, a fuel tank is mounted on a vehicle body frame extending in the front-rear direction, and the fuel tank has a concave portion through which the vehicle body frame is inserted at the center in the width direction of the bottom wall so that the bottom wall is divided. A fuel supply device that is arranged inside through a lid member that covers the opening of one bottom wall and supplies the fuel inside the fuel tank to the outside,
The fuel supply device includes a fuel discharge pipe that protrudes from the lid member to the outside of the fuel tank and discharges the fuel to the outside.
The fuel discharge pipe has a connection portion to which a fuel pipe for supplying fuel to the internal combustion engine is connected, the connection portion is directed toward the center in the width direction of the vehicle in the fuel discharge direction, and the vehicle A fuel supply device, wherein the fuel supply device is disposed below the vehicle body frame as viewed from the width direction and at a position not overlapping the internal combustion engine. The fuel supply device according to claim 1, wherein
The fuel discharge pipe has an extraction portion that protrudes downward from the lid member and communicates with the connection portion, and the extraction portion has a width with respect to a center in the width direction of the lid member that extends in the front-rear direction. A fuel supply device arranged outside in the direction.

Images