Saddle riding type vehicle

Abstract

To prevent a gas tank and peripheral components from being damaged by heat.SOLUTION: The straddled vehicle runs using gas fuel. A saddle-riding type vehicle includes an engine (31) operated by combustion energy of gas fuel, a gas tank (61) installed in front of the engine, and a partition wall (81) installed between the engine and the gas tank. The engine includes a cylinder (34) having a cylinder axis directed forward, and a cylinder head (35) provided at a front portion of the cylinder. The cylinder head and the gas tank are partitioned by a partition wall.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a saddle-ride type vehicle. [Background technology]

[0002] In recent years, fuel cell vehicles that run on electricity generated by fuel cells have been developed. In fuel cell vehicles, hydrogen gas in a hydrogen tank and oxygen in the air undergo a chemical reaction in the fuel cell to generate electricity, and the generated electricity is supplied to a motor to drive the wheels. In addition to fuel cell vehicles, straddle-type vehicles equipped with gas-fueled engines that burn hydrogen gas as gas fuel and run using the combustion energy have also been developed (see, for example, Patent Document 1). In the straddle-type vehicle described in Patent Document 1, a gas tank is installed below the floorboard in front of the engine. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 04-283128 Summary of the Invention [Problem to be solved by the invention]

[0004] However, if the engine throttle body's intake port faces forward, there is a risk that the flames will head toward the gas tank and surrounding parts in the event of a backfire. There is also a risk that the gas tank and surrounding parts will be exposed to radiant heat from heat sources such as the engine and exhaust pipe.

[0005] The present invention has been made in view of the above points, and has as its object to provide a straddle-type vehicle that can prevent damage to the gas tank and surrounding parts due to heat. [Means for solving the problem]

[0006] One embodiment of the present invention is a saddle-type vehicle that runs on gas fuel, and is equipped with an engine that runs on the combustion energy of gas fuel, a gas tank installed forward of the engine, and a partition installed between the engine and the gas tank, wherein the engine has a cylinder with a cylinder axis facing forward and a cylinder head installed in front of the cylinder, and the cylinder head and the gas tank are separated by the partition, thereby solving the above-mentioned problem. [Effects of the Invention]

[0007] In one aspect of the saddle-type vehicle of the present invention, the space between the cylinder head and the gas tank is separated by a partition wall, which protects the gas tank and surrounding components from the flames of a backfire that occurs in the engine and the radiant heat from the engine, which is a heat source. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a left side view of the vehicle interior structure of the present embodiment. [Figure 2] FIG. 2 is a top view of the vehicle interior structure of the present embodiment. [Figure 3] FIG. 2 is a left side view of the center portion of the vehicle body of the present embodiment. [Figure 4] FIG. 2 is a top view of the center portion of the vehicle body of the present embodiment. [Figure 5] FIG. 2 is a front view of the bulkhead and the unit swing engine of the present embodiment. [Figure 6] FIG. 2 is a rear view of the partition wall and the gas tank of the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] A straddle-type vehicle according to one embodiment of the present invention runs on gas fuel. The engine of the straddle-type vehicle is powered by the combustion energy of the gas fuel, and a gas tank is installed in front of the engine, with a partition wall installed between the engine and the gas tank. The cylinder axis of the engine faces forward, and a cylinder head is installed in front of the cylinder. By separating the cylinder head from the gas tank by the partition wall, the gas tank and surrounding components can be protected from flames of a backfire that occurs in the engine and from the radiant heat of the engine, which is a heat source. [Example]

[0010] A saddle-type vehicle according to this embodiment will now be described with reference to the accompanying drawings. Fig. 1 is a left side view of the internal structure of the vehicle according to this embodiment. Fig. 2 is a top view of the internal structure of the vehicle according to this embodiment. In the following drawings, arrow Fr indicates the front of the vehicle, arrow Re indicates the rear of the vehicle, arrow L indicates the left side of the vehicle, and arrow R indicates the right side of the vehicle.

[0011] As shown in Figures 1 and 2, a saddle-type vehicle 1 is configured by attaching various covers (not shown) as the exterior of the vehicle body to a body frame 10 made of steel or aluminum alloy. A head pipe 11 is provided at the front end of the body frame 10, and a support frame 12 extends diagonally downward and rearward from the upper part of the head pipe 11. A pair of first down frames 13 branch off to the left and right and extend downward from the lower part of the support frame 12, and a pair of second down frames 14 branch off to the left and right and extend downward from the lower part of the head pipe 11. A pair of main frames 15 are connected to the lower parts of the pair of first and second down frames 13, 14.

[0012] The pair of main frames 15 extend toward the rear of the vehicle, and their intermediate portions are connected by an upper bridge 16. A pair of asymmetrical side frames 17 extend downward from the front ends of the pair of main frames 15. Each side frame 17 is bent rearward under the vehicle and then extends diagonally upward and rearward toward the rear of the pair of main frames 15. The pair of main frames 15 and the pair of side frames 17 form the front half of the body frame 10 into a cradle shape. A pair of footboards 18 are attached to the pair of side frames 17.

[0013] A pair of seat frames 19 extend rearward from the rear portions of the pair of main frames 15. The distance between the pair of seat frames 19 increases toward the middle of each frame and then decreases toward the rear end of each frame. The pair of seat frames 19 are formed in an arch shape, and the rear ends of the pair of seat frames 19 are connected to each other. The front portions of the pair of seat frames 19 are connected by a seat bridge 21. The rear portions of the pair of side frames 17 are connected to the seat bridge 21, and the seat bridge 21 is supported from below by the pair of side frames 17.

[0014] A pair of asymmetrical lower frames 22 extend rearward from the lower portions of the pair of side frames 17. The rear ends of the pair of lower frames 22 are connected by a lower bridge 23. A left subframe 24 extends diagonally upward and rearward from the left end of the lower bridge 23, and the seat frame 19 is supported by the left subframe 24 from below. A right subframe (not shown) is also provided on the right side of the body frame 10, and the seat frame 19 is supported by the right subframe from below. A space for a unit swing engine (engine) 31 is secured inside the left and right subframes 24.

[0015] A gas tank 61 is installed inside the cradle portion in the front half of the body frame 10. The gas tank 61 stores gas fuel such as hydrogen, and a tank valve 63 at the rear of the tank controls the flow of gas fuel in and out. A fuel fill port 64 is installed above the tank valve 63, and gas fuel is filled into the gas tank 61 from the fuel fill port 64 through a fill pipe 65 and the tank valve 63. In addition, gas fuel is supplied from the tank valve 63 to an injector (not shown) above the unit swing engine 31 via multiple pipes, a regulator 67, a fuel hose 72, etc.

[0016] A unit swing engine 31 is swingably supported on the support plates 25 of the left and right subframes 24 (the right subframe is not shown). The unit swing engine 31 is powered by combustion energy of gas fuel supplied from a gas tank 61. A cylinder axis 37 of the unit swing engine 31 is tilted forward and close to horizontal, and a cylinder assembly 33 extends from the crankcase 32 toward the front of the vehicle. The cylinder assembly 33 is inserted between the left subframe 24 and the right subframe, and the front end of the cylinder assembly 33 is close to a tank valve 63 of the gas tank 61.

[0017] An air cleaner 41, an outlet tube 42, and a throttle body 43 are connected to the upper part of the cylinder assembly 33, and an exhaust pipe 46 and a muffler 47 are connected to the lower part of the cylinder assembly 33. A CVT cover 48 is attached to the left side of the crankcase 32. A rear wheel (not shown) is rotatably supported at the rear part of the CVT cover 48. A belt-type continuously variable transmission (not shown) is housed inside the CVT cover 48, and the driving force of the unit swing engine 31 is transmitted to the rear wheel via the belt. The muffler 47, CVT cover 48, rear wheel, and unit swing engine 31 all swing together.

[0018] Incidentally, since the intake port 44 (see FIG. 4) of the throttle body 43 faces the gas tank 61, if a backfire occurs in the unit swing engine 31, the gas tank 61 may become hot due to exposure to flames from the intake port 44. Also, since the front end of the cylinder assembly 33 and the exhaust pipe 46 of the unit swing engine 31, which are heat sources, are located close to the gas tank 61, the gas tank 61 may become hot due to exposure to radiant heat from the cylinder assembly 33 and the exhaust pipe 46. Therefore, in this embodiment, the unit swing engine 31 and the gas tank 61 are separated by a non-flammable partition wall 81.

[0019] The peripheral structure of the unit swing engine will be described with reference to Figures 3 and 4. Figure 3 is a left side view of the center part of the vehicle body of this embodiment. Figure 4 is a top view of the center part of the vehicle body of this embodiment.

[0020] 3 and 4, the cylinder assembly 33 of the unit swing engine 31 is formed by stacking a cylinder 34, a cylinder head 35, and a cylinder head cover 36. An air cleaner 41, a U-shaped outlet tube 42, a throttle body 43, and an intake pipe 45 are installed above the cylinder head 35. Air is sent from the air cleaner 41 through the outlet tube 42 to the throttle body 43, and after the intake amount is adjusted by the throttle body 43, the air is supplied to the intake port of the cylinder head 35 through the intake pipe 45.

[0021] An exhaust port is formed in the bottom of the cylinder head 35, and an exhaust pipe 46 is connected to the exhaust port of the cylinder head 35. The exhaust pipe 46 extends from the underside of the cylinder head 35, curves rearward, and then extends toward the rear of the vehicle, passing along the right side of the crankcase 32. A muffler 47 (see FIG. 2) tilted diagonally upward and rearward is connected to the rear end of the exhaust pipe 46 on the right side of the rear wheel (not shown). Exhaust gas flows into the exhaust pipe 46 from the exhaust port of the unit swing engine 31, flows rearward through the exhaust pipe 46, and is then discharged to the outside through the muffler 47.

[0022] A link mechanism 52 for a suspension 51 is provided below the cylinder head 35. The link mechanism 52 has a link lever 53 that is arc-shaped in a side view, and a middle portion of the link lever 53 is swingably connected to a link bracket 54 (see FIG. 1) of the body frame 10. The upper end of the link lever 53 is swingably connected to the lower portion of the crankcase 32 via a link arm 55, and the lower end of the link lever 53 is connected to a suspension bracket 56 (see FIG. 1) of the body frame 10 via the suspension 51. The suspension 51 expands and contracts in accordance with the swing of the unit swing engine 31, thereby absorbing vibrations transmitted to the vehicle body.

[0023] A gas tank 61 is installed in front of the unit swing engine 31. Gas fuel is stored in a tank body 62 of the gas tank 61. The tank body 62 is formed in a cylindrical shape, with both ends of the tank body 62 bulging out in a hemispherical shape. The longitudinal direction of the tank body 62 is oriented in the front-to-rear direction, and the tank body 62 is slightly tilted so that the front end is higher than the rear end. The gas tank 61 is supported at the bottom of the body frame 10 via a pair of front and rear tank brackets 75 (see Figure 1). Bands 76 are attached to the pair of tank brackets 75, and the outer circumferential surface of the tank body 62 is fastened by the bands 76.

[0024] A tank valve 63 is installed at the rear end of the tank body 62, and a regulator 67 is connected to a relief valve pipe 66 that extends diagonally upward and rearward from the bottom of the tank valve 63. When the pressure of the gas fuel in the tank body 62 reaches a predetermined pressure or higher, the valve of the regulator 67 opens and adjusts the pressure of the gas fuel in the tank body 62. A fuel fill port 64 is installed above the gas tank 61, and the top of the tank valve 63 is connected to a fill pipe 65 that extends diagonally downward and rearward from the fuel fill port 64. Gas fuel is filled into the tank body 62 from the fuel fill port 64 through the tank valve 63.

[0025] An injector joint 74 is connected to the regulator 67 via an upstream pipe 71, a fuel hose 72, and a downstream pipe 73. The upstream pipe 71 and downstream pipe 73 are formed from a hard pipe material such as metal, and the fuel hose 72 is formed from a soft rubber hose. The upstream pipe 71 extends from the regulator 67 on the left side of the vehicle to the right side of the vehicle, crossing behind the tank valve 63. On the right side of the vehicle, the lower end of the fuel hose 72 is connected to the upstream pipe 71, and the fuel hose 72 extends upward past the right side of the gas tank 61. The upper end of the fuel hose 72 is connected to the injector joint 74 via the downstream pipe 73.

[0026] A partition wall 81 made of a non-flammable plate material is installed between the unit swing engine 31 and the gas tank 61. The partition wall 81 is formed by connecting plate-like first to fourth wall sections 82-85 in a generally crank-like shape when viewed from the side. The first wall section 82 is formed of a vertical plate on the rear and lower side of the partition wall 81 with its main surface facing forward and backward, and the second wall section 83 is formed of a vertical plate on the front and upper side of the partition wall 81 with its main surface facing forward and backward. The third wall section 84 connects the upper edge of the first wall section 82 and the lower edge of the second wall section 83 and is formed of a horizontal plate with its main surface facing up and down. The fourth wall section 85 extends rearward from both vehicle width direction edges of the second wall section 83 and is formed of a vertical plate with its main surface facing in the vehicle width direction.

[0027] The layout of the bulkhead will be described with reference to Figures 3 to 6. Figure 5 is a view of the bulkhead and unit swing engine of this embodiment as seen from the front. Figure 6 is a view of the bulkhead and gas tank of this embodiment as seen from the rear.

[0028] As shown in Figure 3, the cylinder 34 of the unit swing engine 31 has a cylinder axis 37 facing forward, and a cylinder head 35 is provided in front of the cylinder 34. A gas tank 61 is provided in front of the cylinder head 35, and the cylinder head 35 and the gas tank 61 are separated by a partition wall 81. Radiant heat from the unit swing engine 31 is blocked by the partition wall 81, thereby reducing heat damage to the gas tank 61, and even if a backfire occurs in the unit swing engine 31, the non-flammable partition wall 81 prevents the gas tank 61 from being exposed to flames.

[0029] More specifically, the lower part of the cylinder head cover 36 and the upper part of the tank valve 63 face each other in the front-rear direction, and the cylinder head cover 36 and the tank valve 63 are separated by a first wall portion 82 of the partition wall 81. Even if the cylinder head cover 36 and the tank valve 63 are close to each other, the first wall portion 82 blocks radiant heat from the cylinder head cover 36, thereby reducing heat damage to the tank valve 63. The width dimension of the first wall portion 82 in the vehicle width direction is larger than the width dimension of the cylinder head cover 36, and the first wall portion 82 covers the cylinder head cover 36 from the front, effectively blocking radiant heat.

[0030] 3 and 5, an exhaust pipe 46 is connected to the underside of the cylinder head 35 and curves rearward. The curved portion of the exhaust pipe 46 faces the tank valve 63 in the front-to-rear direction, and a first wall portion 82 of a partition wall 81 separates the exhaust pipe 46 from the tank valve 63. Even if the tank valve 63 and exhaust pipe 46 are close to each other, radiant heat from the exhaust pipe 46 is blocked by the first wall portion 82, thereby reducing thermal damage to the tank valve 63. The first wall portion 82 is cut diagonally in accordance with the extension direction of the exhaust pipe 46, and the first wall portion 82 covers most of the exhaust pipe 46 from the front, effectively blocking radiant heat.

[0031] 3 and 6, a throttle body 43 is connected to the cylinder head 35, and a fuel filler port 64 is connected to the gas tank 61. The throttle body 43 is located above the cylinder head 35, and the fuel filler port 64 is located above the tank body 62 and in front of the tank valve 63. The intake port 44 of the throttle body 43 faces forward, and the fuel filler port 64 and the intake port 44 of the throttle body 43 face each other in the front-to-rear direction, with the fuel filler port 64 and the intake port 44 separated by a second wall portion 83 of the partition wall 81. Even if a backfire causes the outlet tube 42 to become detached and flames to spew from the intake port 44, the second wall portion 83 prevents the flames from directly hitting the fuel filler port 64.

[0032] The second wall portion 83 is located closer to the fuel filler port 64 than the intake port 44 of the throttle body 43. By separating the second wall portion 83 from the intake port 44 of the throttle body 43, the flames blowing out from the intake port 44 due to backfire are diffused, reducing damage to the second wall portion 83. The width dimension of the second wall portion 83 in the vehicle width direction is larger than the width dimension of the throttle body 43, and the throttle body 43 is covered from the front by the second wall portion 83. In addition, the intake port 44 of the throttle body 43 is directed toward the center of the second wall portion 83, and the flames blowing out from the intake port 44 are effectively blocked by the second wall portion 83.

[0033] 3 and 4, a U-shaped outlet tube 42 is connected to the intake port 44 of the throttle body 43, and the outlet tube 42 is located above the tank valve 63. The third wall portion 84 of the partition wall 81 is located below the outlet tube 42. The second wall portion 83 covers the outlet tube 42 from the front, and the third wall portion 84 covers the outlet tube 42 from below. Even if the outlet tube 42 becomes detached from the throttle body 43 due to a backfire, the second and third wall portions 83, 84 restrict the movement of the outlet tube 42, thereby minimizing damage to surrounding parts.

[0034] The rear half of the third wall portion 84 is formed so that its width in the vehicle width direction is larger than that of its front half. The width of the rear half of the third wall portion 84 is larger than the width of the tank valve 63, and the rear half of the third wall portion 84 covers the tank valve 63 from above. The width of the front half of the third wall portion 84 is formed to match the width of the hemispherical portion on the rear end side of the tank main body 62, and the front half of the third wall portion 84 covers the hemispherical portion of the tank main body 62 from above. The third wall portion 84 protects the tank valve 63 and the tank main body 62 from the outlet tube 42 that has come off the throttle body 43, etc.

[0035] A pair of fourth wall portions 85 extend rearward from both side edges of the second wall portion 83 in the vehicle width direction. The pair of fourth wall portions 85 extend to approximately the front of the outlet tube 42. The front side of the partition wall 81 is formed into a box shape that is open upward and rearward by the second wall portion 83, the front half of the third wall portion 84, and the pair of fourth wall portions 85. Even if the outlet tube 42 becomes detached from the throttle body 43, the outlet tube 42 can be stored inside the pair of fourth wall portions 85. The fuel hose 72 passes outside the fourth wall portions 85, preventing the outlet tube 42 inside the fourth wall portions 85 from interfering with the fuel hose 72.

[0036] As described above, according to the saddle-type vehicle 1 of this embodiment, the space between the cylinder head 35 and the gas tank 61 is separated by the partition wall 81, so that the gas tank 61 and surrounding components can be protected from the flames of a backfire that occurs in the unit swing engine 31 and the radiant heat of the unit swing engine 31, which is the heat source.

[0037] In this embodiment, a unit swing engine is exemplified as the engine, but the engine is not limited to a unit swing engine as long as it is operated by the combustion energy of gas fuel.

[0038] Furthermore, in this embodiment, the engine is a hydrogen engine that uses hydrogen gas, but it may also be a gas fuel engine that uses other gas fuels such as methane gas or propane gas.

[0039] Furthermore, in this embodiment, the cylinder axis of the unit swing engine is tilted forward and close to horizontal, but the cylinder axis of the unit swing engine may be horizontal.

[0040] Furthermore, in this embodiment, a single gas tank is installed in the saddle-ride type vehicle, but a plurality of gas tanks may be installed in the saddle-ride type vehicle.

[0041] In addition, in this embodiment, the gas tank is formed in a cylindrical shape with both ends bulging out in a hemispherical shape, but the shape of the gas tank is not limited as long as it is a shape that can store gas fuel.

[0042] In addition, in this embodiment, the partition is formed by connecting the first to fourth wall portions in a roughly crank-like shape when viewed from the side, but the shape of the partition is not limited as long as it is installed between the engine and the gas tank and is formed to separate the cylinder head and the gas tank.

[0043] The partition wall of this embodiment is not limited to the saddle-ride type vehicle described above, and may be used in other types of saddle-ride type vehicles. Note that the saddle-ride type vehicle is not limited to all vehicles in which the rider sits astride the seat, but also includes scooter-type vehicles in which the rider does not sit astride the seat.

[0044] As described above, the first aspect is a saddle-type vehicle (1) that runs on gas fuel, and includes an engine (unit swing engine 31) that runs on the combustion energy of the gas fuel, a gas tank (61) installed forward of the engine, and a partition wall (81) installed between the engine and the gas tank, and the engine has a cylinder (34) with a cylinder axis (37) facing forward and a cylinder head (35) installed in front of the cylinder, and the cylinder head and the gas tank are separated by the partition wall. With this configuration, the separation between the cylinder head and the gas tank by the partition wall makes it possible to protect the gas tank and surrounding components from flames of a backfire that occurs in the engine and from radiant heat from the engine, which is a heat source.

[0045] In the second aspect, the gas tank of the first aspect has a tank body (62) that stores gas fuel and a tank valve (63) provided at the rear end of the tank body, an exhaust pipe (46) is connected to the cylinder head, the exhaust pipe faces the tank valve in the front-rear direction, and the partition has a first wall portion (82) that separates the exhaust pipe and the tank valve. With this configuration, even if the tank valve is located close to the exhaust pipe, the first wall portion can suppress thermal damage to the tank valve.

[0046] In a third aspect, in the first or second aspect, a throttle body (43) is connected to the cylinder head, an intake port (44) of the throttle body faces forward, a fuel filler port (64) is connected to the gas tank, the fuel filler port faces the intake port of the throttle body in the front-to-rear direction, and the partition has a second wall portion (83) that separates the throttle body from the fuel filler port. With this configuration, even if a backfire occurs in the engine and flames spew from the intake port, the second wall portion can prevent the flames from directly hitting the fuel filler port.

[0047] In a fourth aspect, in the third aspect, the second wall portion is closer to the fuel filler port than the intake port of the throttle body. With this configuration, the second wall portion is spaced apart from the intake port of the throttle body, thereby diffusing flames ejected from the intake port and reducing damage to the second wall portion.

[0048] In a fifth aspect, in the third or fourth aspect, an outlet tube (42) is connected to the intake port of the throttle body, the partition has a third wall portion (84) located below the outlet tube, the outlet tube is covered from the front by the second wall portion, and the outlet tube is covered from below by the third wall portion. With this configuration, even if the outlet tube becomes detached from the throttle body due to backfire, the movement of the outlet tube is restricted by the second and third wall portions, thereby minimizing damage to surrounding components.

[0049] In a sixth aspect, in the fifth aspect, the partition wall has a pair of fourth wall portions (85) extending rearward from both side edges of the second wall portion in the vehicle width direction. With this configuration, even if the outlet tube becomes detached from the throttle body, the outlet tube can be stored inside the pair of fourth wall portions.

[0050] Although the present embodiment has been described, other embodiments may be made by combining the above-described embodiments and modifications in whole or in part.

[0051] Furthermore, the technology of the present invention is not limited to the above-described embodiments, and various changes, substitutions, and modifications may be made without departing from the spirit of the technical idea. Furthermore, if the technical idea can be realized in a different way due to technological advances or other derived technologies, it may be implemented using that method. Therefore, the claims cover all embodiments that may fall within the scope of the technical idea. [Explanation of symbols]

[0052] 1: Saddle-type vehicle 31: Unit Swing Engine (Engine) 34: Cylinder 35: Cylinder head 42: Outlet tube 43: Throttle body 44: Air intake 46: Exhaust pipe 61: Gas tank 62: Tank body 63: Tank valve 64:Fuel filling port 81: Bulkhead 82: First wall 83: Second wall 84: Third wall 85: Fourth wall

Claims

1. A saddle-type vehicle that runs on gas fuel, an engine that operates on the energy of combustion of gas fuel; a gas tank disposed forward of the engine; a partition installed between the engine and the gas tank, The engine has a cylinder with a cylinder axis facing forward and a cylinder head provided in front of the cylinder, A straddle-type vehicle, wherein the partition wall separates the cylinder head from the gas tank.

2. The gas tank has a tank body that stores gas fuel and a tank valve provided at a rear end of the tank body, an exhaust pipe connected to the cylinder head, the exhaust pipe facing the tank valve in the front-rear direction; 2. The straddle-type vehicle according to claim 1, wherein the partition wall has a first wall portion that separates the exhaust pipe from the tank valve.

3. A throttle body is connected to the cylinder head, and an intake port of the throttle body faces forward. a fuel filler port connected to the gas tank, the fuel filler port facing the intake port of the throttle body in the front-rear direction; 3. The straddle-type vehicle according to claim 1, wherein the partition wall has a second wall portion that separates the throttle body from the fuel filler port.

4. 4. The straddle-type vehicle according to claim 3, wherein the second wall portion is closer to the fuel filler port than the intake port of the throttle body.

5. An outlet tube is connected to the intake port of the throttle body, the partition wall has a third wall portion located below the outlet tube; 4. The straddle-type vehicle according to claim 3, wherein the outlet tube is covered from the front by the second wall portion, and the outlet tube is covered from below by the third wall portion.

6. 6. The straddle-type vehicle according to claim 5, wherein the partition wall has a pair of fourth wall portions extending rearward from both side edges of the second wall portion in the vehicle width direction.

Images