JP2019019726A - Fuel supply device - Google Patents

Abstract

To provide a fuel supply device for suppressing damage to itself when impact is applied to a fuel tank.SOLUTION: A fuel supply device 38 is provided on a bottom wall 26a of a saddle type fuel tank 10. The fuel supply device 38 is arranged at a position avoiding a widened part 20 of the fuel tank 10 having a maximum width dimension, and also arranged at a position being width-direction inside of a first flange part 22 of an upper cover 12 and a second flange part 34 of a lower cover 14 constituting the fuel tank 10. Thus, when a motorcycle mounted with the fuel supply device 38 overturns or comes into contact with an obstacle on the lateral side to cause the widened part 20 of the fuel tank 10 to be deformed by the contact, the impact and external force given from the widened part 20 to the fuel supply device 38 are reduced to suppress damage to the fuel supply device 38.SELECTED DRAWING: Figure 3

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, since the fuel supply device described above is installed in the vicinity of the side wall in the fuel tank formed in a saddle shape, for example, the vehicle falls and the side wall of the fuel tank comes into contact with the ground, When the vehicle comes into contact with an obstacle on the side and an impact is given to the side wall, or when the side wall is deformed, the fuel supply device arranged near the side wall is also impacted and damaged. Concerned.

  The present invention has been made in consideration of the above-described problems, and an object of the present invention is to provide a fuel supply device capable of suppressing damage when an impact is applied to a fuel tank.

In order to achieve the above object, the present invention provides a fuel that is disposed on one bottom wall of a fuel tank divided into a saddle type in a saddle-ride type vehicle and supplies fuel inside the fuel tank to the outside of the fuel tank. In the supply device,
The fuel tank has a portion having the maximum width in the vehicle width direction substantially orthogonal to the front-rear direction of the vehicle, and the fuel supply device is disposed so as not to overlap with the portion having the maximum width in the front-rear direction. It is characterized by.

  According to the present invention, the fuel tank of the saddle-ride type vehicle has a portion having the maximum width in the vehicle width direction substantially orthogonal to the front-rear direction of the vehicle, and the fuel disposed on one bottom wall of the fuel tank The supply device is arranged so as not to overlap with a portion having the maximum width of the fuel tank in the front-rear direction of the vehicle.

  Therefore, for example, when a saddle-ride type vehicle falls over or touches an obstacle on the side, the part that becomes the maximum width of the fuel tank will first collide with the ground or an obstacle. By disposing the fuel supply device in the front-rear direction, the impact at the maximum width caused by the collision is reduced and transmitted to the fuel supply device. In addition, it is possible to suppress contact between the wall surface of the fuel tank and the fuel supply device (applying external force) due to the dent in the vicinity of the maximum width caused by the collision.

  As a result, compared to the conventional technology in which a fuel supply device is arranged near the side wall of the fuel tank, even if the fuel tank comes into contact with the ground or an obstacle due to a fall or contact of a saddle-ride type vehicle, The applied impact and external force are reduced, and breakage can be suppressed.

  In addition, the fuel supply apparatus includes a fuel pump that discharges fuel to the outside of the fuel tank, and the axial center of the fuel pump is disposed along the front-rear direction, thereby suppressing the width dimension of the fuel supply apparatus. Since the clearance in the vehicle width direction between the fuel tank side wall and the fuel supply device can be secured large, for example, when a vehicle having a vertical fuel tank falls, the side wall of the fuel tank Even when the side wall is recessed due to an impact, it is possible to reliably suppress damage to the fuel supply device provided inside.

  The fuel supply device further includes a filter connected to a fuel intake port of the fuel pump. The fuel pump includes a main body portion that houses the motor portion and the pump portion. The filter is viewed from the vehicle width direction. It is preferable to offset the main body so as not to overlap with the main body, and to arrange the normal of the flat portion formed on the side surface of the filter so as to extend in the vehicle width direction. As a result, the width dimension of the pump module including the fuel pump and the filter can be reduced, and accordingly, a large clearance in the vehicle width direction between the side wall of the fuel tank and the pump module is ensured with respect to the fuel tank. When an impact is applied, it is possible to suppress damage to the fuel supply device when the fuel tank is recessed.

  Furthermore, the fuel tank is composed of a first tank portion and a second tank portion. The fuel tank includes a flange portion where the wall portion of the first tank portion and the wall portion of the second tank portion are joined. A discharge pipe and / or a connector protruding downward with respect to the bottom wall may be provided, and the discharge pipe and / or the connector may be arranged on the inner side in the vehicle width direction with respect to the collar portion. Thus, for example, when a vehicle having a saddle-shaped fuel tank falls or comes into contact with a side obstacle, the discharge pipe and the connector are protected by the saddle portion and directly contact the ground or the obstacle. Therefore, damage to the fuel supply device can be avoided.

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

  That is, the fuel tank of the saddle-ride type vehicle has a portion having a maximum width in the vehicle width direction substantially orthogonal to the front-rear direction of the vehicle, and a fuel supply device disposed on one bottom wall of the fuel tank, By placing the fuel tank so that it does not overlap in the front-rear direction of the vehicle with respect to the maximum width of the fuel tank, for example, the saddle riding type vehicle falls over or touches an obstacle on the side, and the maximum width Even when the vicinity of the part that is to be indented due to impact, the impact and external force applied to the fuel supply device that is shifted from the part having the maximum width are reduced, and damage can be suppressed.

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 of FIG.

  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 10 of a saddle-ride type vehicle on which a fuel supply device 38 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 (first tank portion) 12 having a U-shaped cross section, A lower cover (second tank portion) 14 that is housed in the upper cover 12 and covers the lower part is formed in a hollow shape, 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 perpendicular to the traveling direction of the motorcycle (FIGS. 2 and 3). A pair of side walls 18a and 18b extending downward from the outer edge of the ceiling 16 are formed in the middle (in the direction of arrow C).

  As shown in FIG. 3, the side walls 18a and 18b are narrowed on the front side (arrow A direction) in the width direction, and the width dimension gradually increases toward the rear side (arrow B direction). It has a widened portion (maximum width portion) 20 having a maximum width slightly on the front side slightly from the central portion along the front-rear direction, and gradually increases in width from the widened portion 20 toward the rear (arrow B direction) again. It is narrowed down so that the size becomes smaller.

  Further, as shown in FIGS. 1 and 2, a first brim 22 extending linearly downward is formed at the lower ends of the side walls 18 a and 18 b, and a second brim of the lower cover 14 to be described later. 34.

  The lower cover 14 includes a flange portion 24 formed at the center and bulging upward, and a pair 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. The collar portion 24 is formed in a U-shaped cross section that opens downward, and penetrates along the front-rear direction (arrow A, B direction) of the vehicle. Then, a body frame 28 (see FIG. 2) of the motorcycle is inserted into the flange 24.

  One bottom wall 26a has an opening 30 to which the fuel supply device 38 is mounted at a position behind (in the direction of arrow B) the widened portion 20 of the upper cover 12, and the opening 30 is, for example, It is formed in a long oval shape along the front-rear direction of the vehicle (the direction of arrows A and B). The position of the opening 30 is not particularly limited as long as it is a position that does not overlap with the widened portion 20 of the upper cover 12 in the vehicle front-rear direction (arrow A, B direction). It may be on the vehicle front side (arrow A direction) with respect to the widened portion 20.

  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.

  Furthermore, the bottom walls 26a and 26b extend substantially horizontally along the width 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 includes a fuel pump 52 provided on one surface of the lid member 40 facing the inside of the fuel tank 10, a suction pipe (suction port) 54 that sucks fuel into the fuel pump 52, and an end portion of the suction pipe 54. A filter 56 connected to the fuel tank 10, a discharge pipe 58 provided on the other surface of the lid member 40 on the outside of the fuel tank 10 to discharge the fuel sucked into the fuel pump 52, and the fuel pump 52 energized Connector 60.

  The fuel pump 52 employs, for example, a brushless motor as a motor unit, has a main body unit 61 in which a motor unit and a pump unit (not shown) are housed, and an axis L1 thereof is substantially parallel to the lid member 40. Thus, it arrange | positions along a horizontal direction (arrow A, B direction), and is fixed to the vehicle front side (arrow A direction) with respect to this cover member 40. 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 motor unit is driven and controlled based on the above.

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

  The filter 56 is formed, for example, in a bag shape having a flat portion 62 that faces the vehicle width direction substantially parallel to the vehicle front-rear direction (arrows A and B directions), and is provided with a predetermined length along the front-rear direction. At the same time, the end of the suction pipe 54 is inserted therein. Further, the filter 56 is provided such that a virtual line (normal line) L2 orthogonal to the plane portion 62 extends along the vehicle width direction (arrow C direction).

  The discharge pipe 58 includes a take-out portion 64 connected to the fuel pump 52 via the lid member 40, and a tubular discharge portion 66 extending laterally with respect to the take-out portion 64. The lid member 40 protrudes downward by a predetermined height.

  The discharge portion 66 extends, for example, toward the inside in the width direction of the vehicle (in the direction of the arrow C1 in FIGS. 2 and 3) with respect to the take-out portion 64, and an end portion thereof via a connection member such as a snap fit A fuel tube (not shown) is connected.

  Further, in the pump module 42, as shown in FIG. 2, the discharge pipe 58 and the connector 60 arranged outside the fuel tank 10 are wider than the first and second flange portions 22 and 34 of the fuel tank 10. It is arranged at a position that is inward of the direction (arrow C1 direction), and the lower height of the first and second flanges 22 and 34 covers at least a part of the discharge pipe 58 and the connector 60. Is set.

  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 from the suction pipe 54, and then discharged from a pump section (not shown) and is taken out from the discharge pipe 58. It is led out to the fuel tube through the discharge part 66. Thereafter, fuel is supplied to the injector of the internal combustion engine through the fuel tube.

  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 26a of the fuel tank 10, and the position thereof is widened to be the maximum width dimension of the fuel tank 10. For example, when a motorcycle falls or comes in contact with an obstacle on the side such as a power pole or a wall by disposing it in the vehicle front-rear direction (arrow A, B direction) with respect to the unit 20 The widened portion 20 of the side wall 18a, which is the maximum width of the fuel tank 10, first collides with the ground or an obstacle first, but the fuel supply device 38 is disposed at a position avoiding the widened portion 20. As a result, the external force due to the impact and dent generated in the vicinity of the widened portion 20 is not easily applied to the fuel supply device 38.

  As a result, as compared with the prior art in which a fuel supply device is arranged near the side wall of the fuel tank, the fuel supply even when the fuel tank 10 comes into contact with the ground or an obstacle due to a fall or contact of the motorcycle. The impact and external force applied to the device 38 are reduced, and damage can be suppressed.

  Further, the fuel supply device 38 includes a fuel pump 52 that discharges the fuel to the outside of the fuel tank 10, and an axis L <b> 1 of the fuel pump 52 extends along the longitudinal direction of the vehicle (the directions of arrows A and B). By arranging in this way, the width direction dimension of the fuel supply device 38 can be suppressed, and a large clearance between the side wall 18a of the fuel tank 10 and the fuel supply device 38 can be secured.

  Therefore, for example, even when the side wall 18a of the fuel tank 10 is dented due to an impact caused by the overturn of the motorcycle, the fuel supply device 38 can be reliably prevented from being damaged.

  Further, the fuel supply device 38 includes a filter 56 connected to the suction pipe 54 of the fuel pump 52 so that the filter 56 does not overlap with the main body 61 of the fuel pump 52 when viewed from the width direction of the vehicle. The fuel pump 52 and the filter 56 are included by offsetting in the front-rear direction (arrows A and B directions) and by arranging so that the normal line of the flat portion 62 of the filter 56 extends in the vehicle width direction. The width dimension of the pump module 42 can be reduced. As a result, a large clearance between the side wall 18a of the fuel tank 10 and the pump module 42 is secured, and it is caused by the impact applied to the fuel tank 10 by being arranged further away from the side wall 18a, and the depression of the fuel tank 10. Damage to the fuel supply device 38 can be suppressed.

  Furthermore, the fuel tank 10 joins the first flange 22 of the side walls 18a, 18b of the upper cover 12 and the second flange 34 formed on the outer edge of the lower cover 14 by welding. The two flanges 22 and 34 project downward from the bottom walls 26a and 26b of the fuel tank 10, and the discharge pipe 58 and the connector 60 projecting downward from the other surface of the lid member 40 of the fuel supply device 38 By disposing the first and second flange portions 22 and 34 on the inner side in the width direction (in the direction of the arrow C1), for example, when the motorcycle falls or contacts a side obstacle, the discharge pipe 58 and the connector 60 are provided. Is protected from contact with the ground and obstacles by the first and second flanges 22 and 34, so that the fuel supply device 38 can be prevented from being damaged.

  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 18a, 18b ... Side wall 20 ... Widening part 22 ... 1st collar part 26a, 26b ... Bottom wall 30 ... Opening part 34 ... 2nd collar part 38 ... Fuel supply apparatus 40 ... Cover Member 42 ... Pump module 52 ... Fuel pump 54 ... Suction pipe 56 ... Filter 58 ... Discharge pipe 60 ... Connector 61 ... Main body

Claims (4)

In a fuel supply device that is disposed on one bottom wall of a fuel tank divided into a saddle type in a saddle-ride type vehicle and supplies fuel inside the fuel tank to the outside of the fuel tank,
The fuel tank has a portion having a maximum width in a vehicle width direction substantially orthogonal to the front-rear direction of the vehicle so that the fuel supply device does not overlap with the portion having the maximum width in the front-rear direction. A fuel supply device that is arranged. The fuel supply device according to claim 1, wherein
The fuel supply apparatus includes a fuel pump that discharges the fuel to the outside of the fuel tank, and an axial center of the fuel pump is disposed along the front-rear direction. The fuel supply device according to claim 2, wherein
The fuel supply device includes a filter connected to an intake port of the fuel in the fuel pump,
The fuel pump has a main body part that houses a motor part and a pump part inside,
The filter is offset in the front-rear direction so as not to overlap the main body when viewed from the vehicle width direction, and the normal line of the flat portion formed on the side surface of the filter is the vehicle width. A fuel supply device arranged so as to extend in a direction. The fuel supply device according to any one of claims 1 to 3,
The fuel tank includes first and second tank portions, and includes a flange portion that joins a wall portion of the first tank portion and a wall portion of the second tank portion,
The fuel supply device includes a discharge pipe and / or a connector that protrudes downward with respect to a bottom wall of the fuel tank, and the discharge pipe and / or the connector is on the inner side in the vehicle width direction with respect to the flange portion. A fuel supply device that is arranged.

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