JP2010014007A - Off-road vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify a constitution of an off-road vehicle by shortening the length of a fuel supply pipe for connecting a throttle body to a fuel tank. <P>SOLUTION: The off-road vehicle comprises a fuel tank, engine and fuel supply pipe. The engine is equipped with a fuel injector and delivery pipe. The fuel supply pipe connects a take-out port in a fuel tank with the delivery pipe. In plane view, the delivery pipe extends toward the take-out port side. The fuel supply pipe is connected to a part closer to the fuel tank than a portion having the fuel injector of the delivery pipe connected thereto. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to off-road vehicles.

For example, Patent Document 1 discloses an off-road vehicle as a rough terrain vehicle. Conventional off-road vehicles usually employ an engine using a carburetor. In recent years, from the viewpoint of improving engine performance, it has been proposed to apply a fuel injection type engine having a throttle body to an off-road vehicle.
US Patent Application Publication No. 2004/0195019 A1

  An object of the present invention is to shorten the length of the fuel supply pipe connecting the throttle body and the fuel tank, and to simplify the configuration of the off-road vehicle.

  A first off-road vehicle according to the present invention includes a fuel tank, an engine, and a fuel supply pipe. Fuel is stored in the fuel tank. A fuel outlet is formed in the fuel tank. The engine includes a fuel injector and a delivery pipe. The delivery pipe is connected to the fuel tank. The delivery pipe supplies fuel to the fuel injector. The fuel supply pipe connects the takeout port and the delivery pipe. In plan view, the delivery pipe extends toward the take-out port. The fuel supply pipe is connected to a portion closer to the fuel tank than the portion of the delivery pipe to which the fuel injector is connected.

  A second off-road vehicle according to the present invention includes a fuel tank, an engine, and a fuel supply pipe. Fuel is stored in the fuel tank. A fuel outlet is formed in the fuel tank. The engine includes a fuel injector and a delivery pipe. The delivery pipe is connected to the fuel tank. The delivery pipe supplies fuel to the fuel injector. The fuel supply pipe connects the takeout port and the delivery pipe. The fuel tank is arranged on the side of the engine. In plan view, the delivery pipe extends in the vehicle width direction. The fuel supply pipe is connected to a portion closer to the fuel tank than the portion of the delivery pipe to which the fuel injector is connected.

  According to the present invention, the length of the fuel supply pipe connecting the throttle body and the fuel tank can be shortened, and the configuration of the off-road vehicle can be simplified.

  Hereinafter, an example of a preferred form of an off-road vehicle embodying the present invention will be described by taking the off-road vehicle 1 shown in FIG. 1 as an example. However, the off-road vehicle 1 shown in FIG. 1 is merely an example of the off-road vehicle of the present invention. The present invention is not limited to the off-road vehicle 1 shown in FIG.

  In the following description, the front, rear, left, and right directions refer to directions viewed from a rider sitting on the seat 35.

  As shown in FIGS. 1 and 2, the off-road vehicle 1 includes a vehicle body 10. As shown mainly in FIG. 2, the vehicle body 10 includes a body frame 11. The vehicle body frame 11 includes a frame body 15, a front frame 13, a rear frame 14, and a roof support 16.

  The frame body 15 is located at the center of the off-road vehicle 1 in the front-rear direction. The frame main body 15 includes two side members 12. The side member 12 is disposed so as to extend in the front-rear direction. The two side members 12 are arranged in the vehicle width direction. The two side members 12 are fixed to each other by a cross member (not shown).

  The front frame 13 is connected to the front half of the frame body 15. The front frame 13 is disposed on the front side portion of the off-road vehicle 1. A front wheel 20 is rotatably attached to the front frame 13 via a steering system assembly (not shown). As shown in FIG. 1, the front wheel 20 includes a right front wheel 20a and a left front wheel 20b.

  A front covering member 30 is disposed above the front frame 13. The front frame 13 is covered with the front covering member 30. The front covering member 30 includes at least a bonnet 31. Specifically, the front covering member 30 includes a dashboard 32 and a bonnet 31. A meter visor is formed on the dashboard 32. Various meters arranged on the front panel 27 are protected by the meter visor.

  As shown in FIG. 2, a front panel 27 is disposed behind the front covering member 30. The front panel 27 isolates a front portion and a rear portion of the vehicle from the front panel 27. That is, as shown in FIG. 3, the front portion where the intake system component 73 is disposed and the cabin 25 are isolated.

  The rear frame 14 is attached to the rear portion of the frame body 15. The rear frame 14 is disposed on the rear side portion of the off-road vehicle 1. A rear wheel 21 is rotatably attached to the rear frame 14 via a rear cushion assembly (not shown). As shown in FIG. 1, the rear wheel 21 includes a right rear wheel 21a and a left rear wheel 21b. As shown in FIG. 2, a cargo bed 22 is disposed on the rear frame 14.

  As shown in FIG. 2, the roof support 16 is formed in a loop shape in a side view. The roof support 16 is disposed between the front frame 13 and the rear frame 14. As shown in FIG. 1, the roof support 16 includes a right roof support 16a and a left roof support 16b. The roof supports 16a and 16b are fixed to the frame body 15, the front frame 13, and the rear frame 14, respectively.

  As shown in FIG. 2, a cabin 25 on which a rider rides is defined between the front frame 13 and the rear frame 14. A seat 35 is disposed in the cabin 25. As shown in FIG. 1, the sheet 35 includes a right sheet 35 a and a left sheet 35 b. The right seat 35a and the left seat 35b are arranged in the vehicle width direction.

  A footrest portion 29 is disposed on the front side of the seat 25 of the cabin 25. The footrest portion 29 is located at a position lower than the seat surface 36 of the seat 35.

  As shown mainly in FIG. 1, a tunnel portion 37 is formed between the right seat 35a and the left seat 35b. As shown in FIG. 2, the tunnel portion 37 is formed so as to bulge upward from the footrest portion 29. The top portion of the tunnel portion 37 is located at a position higher than the footrest portion 29. Further, as shown in FIG. 2, the top portion of the tunnel portion 37 is positioned higher than the seat surface 36 of the seat 35.

  A shift lever 38 is disposed in a portion of the tunnel portion 37 on the front side of the seat 35. The shift lever 38 includes a lever main body 38a and a shift knob 38b. The shift knob 38b is attached to the tip of the lever body 38a. The shift lever 38 is used for switching the parking, neutral, forward and reverse in the off-road vehicle 1.

  In the cabin 25, a handle 26 is disposed in front of the left seat 35b.

  As shown in FIG. 3, an engine unit 40 is suspended from the vehicle body frame 11. The engine unit 40 is attached to the vehicle body frame 11 via a rubber member. In other words, the engine unit 40 is so-called rubber mounted.

  The engine unit 40 is disposed at a position overlapping the seat 35 in the front-rear direction. The engine unit 40 is disposed substantially at the center in the vehicle width direction. Specifically, most of the engine unit 40 is disposed below the tunnel portion 37 that is located at a substantially central portion in the vehicle width direction.

  As shown in FIG. 7, the engine unit 40 includes a fuel injection type engine 41, a transmission mechanism 60, and a centrifugal clutch 55. In the present embodiment, the engine 41 is a water-cooled single cylinder engine. However, in the present invention, the engine may not be a single cylinder engine. The engine may be, for example, a parallel multi-cylinder engine, a V-type multi-cylinder engine, or a horizontally opposed multi-cylinder engine. The engine may be air-cooled.

  As shown in FIG. 3, the engine 41 includes a crankcase 42, a cylinder member 39, a throttle body 54, and a delivery pipe 85. The cylinder member 39 includes a cylinder body 46 and a cylinder head 48.

  The cylinder body 46 is attached to the rear half portion of the crankcase 42. The cylinder body 46 extends obliquely upward from the crankcase 42 toward the rear.

  As shown in FIG. 7, a crankshaft 43 is disposed inside the crankcase 42. The crankshaft 43 extends in the vehicle width direction. A base end portion of a connecting rod 44 is connected to the crankshaft 43. A piston 45 is connected to the tip of the connecting rod 44.

  A cylinder 47 is formed inside the cylinder body 46. The piston 45 is disposed in the cylinder 47.

  The cylinder head 48 is attached to the tip of the cylinder body 46. A combustion chamber 49 is defined by the cylinder head 48 and the cylinder body 46. The cylinder head 48 is formed with an intake port 50 and an exhaust port 51 that open to the combustion chamber 49. An intake valve 52 is disposed in the intake port 50. When the intake valve 52 is driven by the intake cam 67, the intake port 50 is opened and closed. On the other hand, an exhaust valve 53 is disposed in the exhaust port 51. When the exhaust valve 53 is driven by the exhaust cam 68, the exhaust port 51 is opened and closed.

  A throttle body 54 is connected to the intake port 50. The throttle body 54 is disposed in front of the cylinder body 46.

  As shown in FIG. 7, the throttle body 54 includes a fuel injector 54a and a throttle valve 54b. The throttle body 54 mixes air supplied from an intake system component 73, which will be described later, and fuel injected from the fuel injector 54a to form an air-fuel mixture. This air-fuel mixture is supplied to the combustion chamber 49 via the intake port 50.

  On the other hand, the exhaust port 51 is connected to an exhaust pipe 87 and an exhaust muffler 88 extending rearward from the cylinder body 46, as shown in FIGS. As a result, the exhaust from the engine unit 40 is discharged outside the vehicle via the exhaust pipe 87 and the exhaust muffler 88.

  As shown in FIG. 3, a pressure sensor 54 c is attached to the throttle body 54. The pressure in the intake port 50 shown in FIG. 7 is detected by the pressure sensor 54c.

  As shown in FIG. 5, the fuel injector 54 a is connected to a delivery pipe 85. The delivery pipe 85 is connected to the fuel tank 90 by a fuel supply pipe 86. The fuel supply pipe 86 is fixed to the engine 41 in the middle. Specifically, the fuel supply pipe 86 is fixed to the engine 41 via a rubber folder (not shown).

  At least a part of the fuel tank 90 is disposed below the right seat 35a as a passenger seat shown in FIG. The fuel tank 90 is disposed on the side of the engine 41. Further, as shown in FIG. 6, the fuel tank 90 is disposed on the side opposite to the transmission mechanism 60 with respect to the engine 41.

  A protector 95 is disposed above the fuel tank 90. The protector 95 protects the takeout port 93 portion of the fuel tank 90.

  As shown in FIG. 5, fuel such as gasoline is stored in the fuel tank 90. A fuel supply port 91 is formed in the fuel tank 90. The fuel supply port 91 is blocked by a fuel cap 92 so as to be opened and closed.

  The fuel tank 90 is formed with an outlet 93 for the fuel stored in the fuel tank 90. The take-out port 93 is formed on the upper surface of the fuel tank 90.

  A pump 94 is disposed at the take-out port 93. One end of a fuel supply pipe 86 is connected to the pump 94. The fuel stored in the fuel tank 90 is sucked up by the pump 94 and supplied to the fuel supply pipe 86.

  In the present embodiment, the fuel supply pipe 86 is made of metal. However, in the present invention, the material of the fuel supply pipe is not limited to metal. The material of the fuel supply pipe may be resin or rubber.

  The fuel supply pipe 86 has at least one bent portion. Specifically, the fuel supply pipe 86 has a plurality of bent portions 86a, 86b, 86c, 86d, and 86e. The fuel supply pipe 86 extends rearward from the takeout port 93. The fuel supply pipe 86 is bent to the left at the bent portion 86a. The fuel supply pipe 86 extends from the bent portion 86a in the vehicle width direction. The fuel supply pipe 86 is bent obliquely leftward and forward at the bent portion 86b. The fuel supply pipe 86 is bent substantially upward at the bent portion 86c. The fuel supply pipe 86 is bent obliquely leftward and rearward at the bent portion 86d. The fuel supply pipe 86 is bent obliquely leftward and forward at a bent portion 86e.

  The other end of the fuel supply pipe 86 is connected to a portion closer to the fuel tank 90 than the portion of the delivery pipe 85 to which the fuel injector 54a is connected. Specifically, the other end of the fuel supply pipe 86 is connected to the left end 85a of the delivery pipe 85 from the rear.

  As shown in FIG. 3, the delivery pipe 85 is disposed in front of the cylinder body 46. The delivery pipe 85 is disposed above the crankcase 42 together with the fuel injector 54a.

  As shown in FIG. 5, the delivery pipe 85 extends in the vehicle width direction in plan view. The delivery pipe 85 extends toward the takeout port 93.

  As shown in FIG. 3, a breather chamber 56 is formed inside the cylinder head 48. The breather chamber 56 is connected to an accumulator 65 a by a breather hose 57. Thereby, the breather gas in the engine unit 40 is gas-liquid separated in the breather chamber 56. The breather gas after the gas-liquid separation is supplied to the combustion chamber 49 via the accumulator 65a and recombusted in the combustion chamber 49.

  As shown in FIG. 7, a centrifugal clutch 55 is arranged inside the crankcase 42 shown in FIG. The centrifugal clutch 55 is connected to the left end portion of the crankshaft 43. Specifically, the centrifugal clutch 55 includes an inner 55a and an outer 55b. The inner 55a is non-rotatably connected to the crankshaft 43. On the other hand, the outer 55 b is rotatable with respect to the crankshaft 43. As the rotational speed of the crankshaft 43 increases, the centrifugal force applied to the inner 55a also increases accordingly. Thereby, the inner 55a and the outer 55b are connected, and the centrifugal clutch 55 is connected. On the other hand, when the rotational speed of the crankshaft 43 becomes slow, the centrifugal force acting on the inner 55a also becomes small. Thereby, the inner 55a and the outer 55b are separated, and the centrifugal clutch 55 is disconnected.

  As shown in FIG. 7, a transmission mechanism 60 is arranged inside the crankcase 42 shown in FIG. In the present embodiment, the transmission mechanism 60 is a belt-type continuously variable transmission (CVT). However, in the present invention, the transmission mechanism may not be a belt-type continuously variable transmission mechanism. The transmission mechanism may be a continuously variable transmission mechanism other than the belt type. For example, the speed change mechanism may be a trochoidal type continuously variable speed change mechanism. The transmission mechanism may be a stepped transmission mechanism having a plurality of transmission gear pairs.

  As shown in FIG. 7, the speed change mechanism 60 includes a primary sheave 61 and a secondary sheave 62. The primary sheave 61 is disposed at the left end portion of the crankshaft 43. The primary sheave 61 cannot rotate with respect to the outer 55 b of the centrifugal clutch 55. On the other hand, the primary sheave 61 is rotatable with respect to the crankshaft 43. For this reason, when the rotation of the crankshaft 43 is slow and the centrifugal clutch 55 is not connected, the primary sheave 61 does not rotate. On the other hand, when the rotational speed of the crankshaft 43 is fast and the centrifugal clutch 55 is connected, the primary sheave 61 rotates together with the crankshaft 43.

Secondary sheave 62 is disposed in front of primary sheave 61. Secondary sheave 62 is attached to secondary shaft 64 so as not to rotate. A belt 63 having a substantially V-shaped cross section is wound between the primary sheave 61 and the secondary sheave 62. The rotation of the primary sheave 61 is transmitted to the secondary sheave 62 and the secondary shaft 64 by the belt 63. Secondary shaft 64 is connected to front wheel 20 and rear wheel 21 via a power transmission mechanism (not shown). Thereby, the rotation of the secondary shaft 64 is transmitted to the front wheel 20 and the rear wheel 21.

  As shown in FIG. 3, the throttle body 54 is connected to the second intake pipe 65. The second intake pipe 65 is disposed between the throttle body 54 and the intake system component 73. The throttle body 54 and the second intake pipe 65 are connected by a first intake pipe 58. The front end 58 a of the first intake pipe 58 extends to the inside of the second intake pipe 65. Thereby, the distance between the accumulator 65a mentioned later and the throttle body 54 is adjusted.

  The rear portion of the second intake pipe 65 is formed thicker than the front portion of the second intake pipe 65. The rear portion of the second intake pipe 65 constitutes an accumulator 65a. On the other hand, the front side portion of the second intake pipe 65 constitutes a connection portion 65b. The distal end portion of the connection portion 65 b is connected to the intake system component 73 via the third intake pipe 66.

  At least a part of the accumulator 65 a is disposed above the engine 41.

  By arranging the accumulator 65a between the intake system component 73 and the engine unit 40 as in the present embodiment, the intake efficiency of the air supplied from the intake system component 73 can be improved. Thereby, the performance of the engine unit 40 can be improved. Specifically, the response of the engine unit 40 in the high speed range can be improved.

  An intake air temperature sensor 79 is arranged at the end of the accumulator 65a on the engine unit 40 side. The intake air temperature sensor 79 detects the temperature of intake air to the engine unit 40. Specifically, the intake air temperature sensor 79 detects the temperature in the accumulator 65a. The intake air temperature sensor 79 outputs the detected temperature to the ECU 80 described later as the intake air temperature.

  The second intake pipe 65 is integrally formed by blow molding. As shown in FIG. 3, a fixed portion 65 d is formed at the front end portion of the connection portion 65 b of the second intake pipe 65. In the fixed portion 65d, the second intake pipe 65 is fixed to the front frame 13. On the other hand, the rear end portion of the second intake pipe 65 is suspended from the rear frame 14 by a suspension member 69. For this reason, even if the engine unit 40 is slightly swung or vibrated, a large force is not applied to the second intake pipe 65 or the first intake pipe 58. In particular, when the engine unit 40 is so-called rubber mounted as in the present embodiment, the engine unit 40 is likely to swing or vibrate. For this reason, this configuration is particularly useful.

  The material of the suspension member 69 is not particularly limited. The suspension member 69 may be configured by an elastic member. Specifically, the suspension member 69 may be formed of rubber.

  The intake system component 73 is disposed below the front covering member 30. Specifically, the intake system component 73 is disposed below the rear end portion of the front covering member 30. More specifically, the intake system component 73 is disposed below the bonnet 31.

  The intake system component 73 includes an air cleaner 70 and an intake duct 72b. The air cleaner 70 is connected to the third intake pipe 66 at the lower end. The air cleaner 70 is formed with a suction port 70a for sucking air. The suction port 70 a is formed in the upper part of the air cleaner 70. The suction port 70a opens rearward.

  As shown in FIG. 3, the air cleaner 70 includes an air chamber 74 and an air filter 73a.

  The intake duct 72b is attached to the intake port 70a. The intake duct 72b extends obliquely downward from the intake port 70a toward the rear. The intake port 72a of the intake duct 72b opens rearward. Specifically, the suction port 72a is opened obliquely downward toward the rear. The suction port 72 a is disposed at a position higher than the lowest point of the seating surface 36 of the seat 35.

  As described above, in the present embodiment, as shown in FIG. 6, the fuel supply pipe 86 extends toward the extraction port 93. Specifically, the fuel tank 90 is disposed on the side of the engine 41. A delivery pipe 85 extends in the vehicle width direction. The delivery pipe 85 is connected to a portion closer to the fuel tank 90 than a portion of the delivery pipe 85 to which the fuel injector 54a is connected. For this reason, the length of the fuel supply pipe 86 can be shortened. Therefore, the configuration of the off-road vehicle 1 can be simplified.

  In particular, in this embodiment, the fuel supply pipe 86 is connected to the left end 85 a of the delivery pipe 85. For this reason, the length of the fuel supply pipe 86 can be further shortened.

  In the present embodiment, the fuel tank 90 is disposed on the side of the engine 41. For this reason, compared with the case where the fuel tank 90 is arrange | positioned with respect to the engine 41 in the front-back direction, the length of the fuel supply pipe 86 can be made shorter.

  Further, in the present embodiment, the fuel tank 90 is disposed on the side opposite to the transmission mechanism 60 with respect to the engine 41. For this reason, compared with the case where the fuel tank 90 is arrange | positioned with respect to the engine 41 on the same side as the transmission mechanism 60, the distance between the fuel tank 90 and the delivery pipe 85 becomes short. Therefore, the length of the fuel supply pipe 86 can be further shortened.

  For example, as shown in FIG. 7, it is conceivable to attach the cylinder body 46 to the front half portion of the crankcase 42 and pull out the exhaust pipe 87 from the cylinder member 39 to the front side. In this case, it is necessary to route the fuel supply pipe 86 to the front side of the cylinder body 46 in order to avoid positional interference with the exhaust pipe 87. For this reason, the length of the fuel supply pipe 86 is increased, and the configuration of the off-road vehicle is complicated. In this case, since the throttle body 54 is disposed behind the cylinder body 46, the length of the connecting portion 65b is also increased. Therefore, the configuration of the off-road vehicle is particularly complicated.

  Further, in order to simplify the configuration of the off-road vehicle in which the cylinder body 46 is attached to the front half portion of the crankcase 42, it is possible to arrange the throttle body 54 in front of the cylinder body 46 as shown in FIG. . However, in this case, the longitudinal length L3 of the engine unit 40 becomes long.

  On the other hand, in the present embodiment, as shown in FIG. 6, the cylinder body 46 is attached to the rear half portion of the crankcase 42. An exhaust pipe 87 extends rearward from the cylinder member 39. For this reason, the intersection of the exhaust pipe 87 and the fuel supply pipe 86 and positional interference can be suppressed.

  In addition, the delivery pipe 85 and the throttle body 54 can be disposed in front of the cylinder body 46 and above the crankcase 42. Further, it can be disposed at least above the crankcase 42 of the accumulator 65a. For this reason, the longitudinal length L1 of the engine unit 40 can be made shorter than L3 shown in FIG. That is, the engine unit 40 can be made compact in the front-rear direction.

  Further, the throttle body 54 is disposed in front of the cylinder body 46, and the air cleaner 70 is disposed in front of the engine 41. For this reason, the connection between the air cleaner 70 and the throttle body 54 is easy.

  Further, the accumulator 65a can be increased in size, and the engine 41 can be further improved in performance. Specifically, the response in the high speed range of the engine 41 can be further increased.

  By the way, in the case shown in FIG. 7, the engine 41, the exhaust pipe 87, and the connection part 65a are arranged in the vehicle width direction. For this reason, the width W2 of the engine unit 40 is increased.

  On the other hand, in this embodiment, as shown in FIG. 6, the engine 41, the exhaust pipe 87, and the connecting portion 65a are not arranged in the vehicle width direction. Accordingly, the width W1 of the engine unit 40 is reduced. That is, the engine unit 40 can be made compact in the vehicle width direction.

  In the present embodiment, at least one bent portion is formed in the fuel supply pipe 86. For this reason, it is possible to effectively absorb the fluctuation in the length of the fuel supply pipe 86 due to the relative fluctuation in the positional relationship between the engine 41 and the fuel tank 90 due to the vibration or swing of the engine 41. Therefore, the strength required for the fuel supply pipe 86 is reduced. As a result, the fuel supply pipe 86 can be reduced in weight.

  It is preferable that two or more bent portions are formed in the fuel supply pipe 86. According to this, the force applied to the fuel supply pipe 86 when the positional relationship between the engine 41 and the fuel tank 90 fluctuates relatively can be reduced more effectively.

  In the present embodiment, the takeout port 93 is formed on the upper surface of the fuel tank 90. For this reason, fuel leakage can be suppressed. Further, the maintenance of the fuel tank 90 is facilitated.

  In the present embodiment, at least a part of the fuel tank 90 is disposed below the right seat 35a serving as a passenger seat. For this reason, the vehicle body weight balance of the off-road vehicle 1 when only the rider sits on the seat 35b can be improved.

  In the present embodiment, the air cleaner 70 and the cabin 25 are isolated by the front panel 27. For this reason, in the cabin 25, it is difficult to hear the intake noise of the air cleaner 70. That is, the intake noise in the cabin 25 is reduced.

(Modification)
In the above-described embodiment, the example in which the cylinder body 46 is connected to the rear half portion of the crankcase 42 has been described. However, the present invention is not limited to this configuration. For example, as shown in FIGS. 9 and 10, the cylinder body 46 may be connected to the front half portion of the crankcase 42.

  In this case, the throttle body 54 may be disposed in front of the cylinder body 46 or may be disposed in the rear. By disposing the throttle body 54 in front of the cylinder body 46, the throttle body 54 and the air cleaner 70 can be easily connected. When the throttle body 54 is disposed in front of the cylinder body 46, it is preferable that the exhaust pipe 87 is routed rearward from the cylinder member 39 as shown in FIG. Thereby, the positional interference between the exhaust pipe 87 and the fuel supply pipe 86 can be suppressed.

  On the other hand, by arranging the throttle body 54 behind the cylinder body 46, the engine unit 40 can be made compact in the front-rear direction. When the throttle body 54 is disposed behind the cylinder body 46, it is preferable to route the exhaust pipe 87 forward from the cylinder member 39 as shown in FIG. 9. Thereby, the positional interference between the exhaust pipe 87 and the fuel supply pipe 86 can be suppressed.

It is a top view of the off-road vehicle concerning an embodiment. It is a left view of an off-road vehicle. It is the left view which expanded a part of off-road vehicle. It is a conceptual diagram showing the structure of an engine unit. It is a fragmentary top view showing the positional relationship of a fuel tank and an engine. It is a schematic plan view showing the positional relationship between the fuel tank and the engine according to the embodiment. FIG. 4 is a schematic plan view showing a positional relationship between a fuel tank and an engine when a cylinder is arranged in front and a throttle body is arranged behind the cylinder body. FIG. 5 is a schematic plan view showing a positional relationship between a fuel tank and an engine when a cylinder is disposed in front and a throttle body is disposed in front of the cylinder body. 6 is a schematic plan view showing a positional relationship between an engine and a fuel tank in Modification 1. FIG. 10 is a schematic plan view showing a positional relationship between an engine and a fuel tank in Modification 2. FIG.

Explanation of symbols

1 Off-road vehicle 25 Cabin 27 Front panel 35 Seat 35a Right seat (first seat)
35b Left seat (second seat)
39 Cylinder member 41 Engine 42 Crankcase 54a Fuel injector 60 Transmission mechanism 65a Accumulator 70 Air cleaner 85 Delivery pipe 86 Fuel supply pipe 87 Exhaust pipe (exhaust pipe)
90 Fuel tank 93 Fuel outlet 94 Pump

Claims (19)

A fuel tank in which fuel is stored and the fuel outlet is formed;
An engine including a fuel injector and a delivery pipe connected to the fuel tank and supplying the fuel to the fuel injector;
A fuel supply pipe connecting the outlet and the delivery pipe;
With
In plan view, the delivery pipe extends toward the takeout port side,
The fuel supply pipe is an off-road vehicle connected to a portion closer to the fuel tank than a portion of the delivery pipe to which the fuel injector is connected. The off-road vehicle according to claim 1,
The fuel supply pipe is an off-road vehicle connected to an end of the delivery pipe on the fuel tank side. The off-road vehicle according to claim 1,
An exhaust pipe connected to the engine;
The engine is
A crankcase,
A cylinder member attached to the latter half of the crankcase;
Have
The fuel injector and the delivery pipe are disposed in front of the cylinder member,
The exhaust pipe is an off-road vehicle extending rearward from the cylinder member. In the off-road vehicle according to claim 3,
The fuel injector and the delivery pipe are off-road vehicles arranged above the crankcase. In the off-road vehicle according to claim 3,
An off-road vehicle further comprising an air cleaner disposed in front of the engine. The off-road vehicle according to claim 1,
The fuel tank is an off-road vehicle disposed on a side of the engine. The off-road vehicle according to claim 5,
An off-road vehicle further comprising a speed change mechanism disposed on a side opposite to the fuel tank with respect to the engine. The off-road vehicle according to claim 1,
A seat arranged to overlap at least a part of the engine with respect to the front-rear direction;
An air cleaner disposed in front of the engine;
A front panel disposed in front of the seat and rearward of the air cleaner;
An off-road vehicle. The off-road vehicle according to claim 8,
Further comprising a cabin in which the seat is disposed;
The air cleaner is an off-road vehicle that is isolated from the cabin by the front panel. The off-road vehicle according to claim 8,
An off-road vehicle further comprising an accumulator disposed between the air cleaner and the engine. The off-road vehicle according to claim 10,
An off-road vehicle in which at least a part of the accumulator is disposed above the engine. The off-road vehicle according to claim 1,
The fuel supply pipe is made of metal and has at least one bent portion. The off-road vehicle according to claim 1,
The take-out port is an off-road vehicle formed on the upper surface of the fuel tank. The off-road vehicle according to claim 13,
An off-road vehicle further comprising a pump disposed at the take-out port and configured to supply the fuel to the fuel supply pipe. The off-road vehicle according to claim 1,
A first seat for the driver;
A second seat disposed in the vehicle width direction with respect to the first seat;
Further comprising
In the vehicle width direction, at least a part of the engine is disposed between the center of the first seat and the center of the second seat,
An off-road vehicle in which at least a part of the fuel tank is disposed below the second seat in the vehicle width direction. The off-road vehicle according to claim 1,
The engine is
A crankcase,
A cylinder member attached to the front half of the crankcase;
With off-road vehicle. The off-road vehicle according to claim 16,
The fuel injector and the delivery pipe are located in front of the cylinder member,
The exhaust pipe is an off-road vehicle extending rearward from the cylinder member. The off-road vehicle according to claim 16,
The fuel injector and the delivery pipe are located behind the cylinder member,
The exhaust pipe is an off-road vehicle extending forward from the cylinder member. A fuel tank in which fuel is stored and the fuel outlet is formed;
An engine including a fuel injector and a delivery pipe connected to the fuel tank and supplying the fuel to the fuel injector;
A fuel supply pipe connecting the outlet and the delivery pipe;
With
The fuel tank is disposed on a side of the engine,
In plan view, the delivery pipe extends in the vehicle width direction,
The fuel supply pipe is an off-road vehicle connected to a portion closer to the fuel tank than a portion of the delivery pipe to which the fuel injector is connected.

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