AIR ADMISSION DEVICE FOR VEHICLE ENGINE The present invention concerns an air intake device for a vehicle engine in which a motor body and an air filter are installed in a vehicle body frame, and in which A fuel injection device to supply fuel to the engine body and its air filter are connected to each other through a connecting tube. Patent document 1, an air intake device for a motorcycle engine is known and has a carburetor positioned directly below the air filter, and the carburetor and the air filter are connected to each other by a short connector tube. In some vehicles, an intake tube length is conveniently made as long as possible to increase the low speed power. However, in the configuration disclosed in the patent document 1, it is difficult to secure a space to place a connector tube, which causes difficulties to ensure a necessary intake tube length. In view of the aforementioned circumstances, an object of the present invention is to provide an air intake device for a vehicle engine that can be constructed compactly while increasing the length of an intake pipe to increase the
low speed power. In order to achieve the object, a first aspect of the present invention is an air intake device for a vehicle engine that includes a motor body that is installed in a frame of the vehicle; an air filter that is installed in it; and a fuel injection device, which is connected to the air filter through a connector tube, to supply fuel to the engine body, where the connector tube is formed by bending to oscillate in a direction across the width of the vehicle. Furthermore, a second aspect of the present invention is that in addition to the configuration of the invention according to claim 1, part of the connector tube is formed through blow molding of synthetic resin. A third aspect of the present invention, in addition to the configuration of the invention according to any of claims 1 and 2, the fuel injection device and the motor body are placed under the air filter, the connecting tube is equipped with a first downward portion that connects to the air filter and directs air from the air filter downwardly, a portion of up tube to send air back from a lower end of the first down tube to be directed upwards, and a second portion of down tube to return the air from an upper end of the
portion of riser tube for being directed to the fuel injection device, and a vent tube extending from the motor body is connected to a connector portion of the first downpipe portion and the uppipe portion . Also, a fourth aspect of the present invention is that, in addition to the configuration of the invention according to any of claims 1 to 3, the filter compartment of the air filter is composed of an upper compartment supported by the frame of the body of the vehicle while connecting to a rising end portion of the connector tube, and a lower compartment, which attaches detachably to the upper compartment, and a filter element, which divides an interior of the filter compartment into a chamber not Purified chamber and a purified chamber that communicate with the connector tube, allow maintenance work to be carried out by detaching the lower compartment of the upper compartment, and located inside the filter compartment. Incidentally, a regulator body 45 in one embodiment corresponds to the fuel injection device of the present invention. In accordance with the first aspect of the present invention, the connector tube is formed by bending to oscillate
in a wide d direction of a motorcycle, and therefore it is possible to build a compact intake device at the same time that an intake pipe length is ensured which improves the low speed power. In accordance with the second aspect of the present invention, part of the connector tube is formed through blow molding, thereby facilitating the forming of the bent connector tube and allowing the connector tube to be longer. According to the third aspect of the present invention, the connector tube is bent so that it oscillates in a vertical direction, whereby the connecting tube can be made longer and more compact, and a ventilation tube is connected to the lower portion. of the tube, connector, thus making it possible to return the oil, which flows together with the gas from the crankcase circulating in the ventilation pipe, to the side of the engine body from the ventilation pipe, again. According to the fourth aspect of the present invention, the maintenance work of the filter element can be carried out by detaching the upper compartment of the lower compartment without interrupting the state of connection of the filter connector tube, thus enabling the capacity of the filter to be improved. maintenance. The following will explain an embodiment of the present invention based on an embodiment
shown in the accompanying drawings. Figure 1 to Figure 16 show an embodiment of the present invention. Figure 1 is a left side view of a motorcycle. Figure 2 is an enlarged view of the main part of Figure 1. Figure 3 is a left side view showing an enlarged side portion of the motorcycle. Figure 4 is a left side view showing a partial configuration of an intake system. Figure 5 is a view in the direction of arrow 5 in Figure 4. Figure 6 is a cross-sectional view taken along line 6-6 of Figure 5. Figure 7 is a plan view showing a partial configuration of an exhaust system. Figure 8 is a cross-sectional view taken along line 8-8 of Figure 7. Figure 9 is a left side view partially in section showing a portion in the vicinity of a fuel tank. Figure 10 is a view in the direction of the arrow line 10-10 in Figure 9 in a state in which the driver's seat and a pump cover are omitted. Figure 11 is a longitudinal sectional view showing a fuel hose connection structure. Figure 12 is a left side view partially in section showing an enlarged front portion of a vehicle body frame. Figure 13 is a perspective view showing a
mounting condition of electrical components of a main frame seen from an oblique right rear direction. Figure 14 is a left side view of a support. Figure 15 is a view in the direction of arrow 15 of Figure 14. Figure 16 is a view in the direction of arrow 16 of Figure 14. Incidentally, in the explanation given below "front", " "rear", "left" and "right" indicate the direction in which the motorcycle is moving. First, in Figure 1, a vehicle frame F of a motorcycle, which is a small vehicle, is composed of a main tube 22, which supports with steering capability a front fork 21 that supports a front wheel WF in a lower end portion, a tube-shaped main frame 23, which extends in a backward and downward direction from the main tube 22 and a rear frame 24 which is connected to a lower portion of the main frame 23 to be able to be divided in the left and right frame halves. A handlebar-like steering rod 25 is connected to an upper portion of the front fork 21, and a front fender 26, which covers the front wheel WF from above, is fitted to the front fork 21. In addition, the rear frame 24 has a rear fender shape that covers
the rear wheel WR from above, and a maintenance cover 28 is attached to a surface on the left side of the rear frame 24 to correspond with a battery 27 which is located and placed in the rear frame 24. A motor body 30 of an engine E which provides in power to drive the rear wheel WF is supported through the main frame 23 so that it is placed below the main frame 23, and a transmission (not shown) transmitting power of the engine E is contained in a crankcase 31 of the body 30. In this way, a drive shaft 33 of the transmission projects from the crankcase 31, a front end portion of an oscillating arm 34 extending to the side of the rear wheel WR is supported with rotatability in the crankcase 31 in a position further back than that of the motor shaft 33, a shaft 35 of the rear wheel WR receives axial support to be able to rotate at a rear portion of the swing arm 34, and a rear cushion unit 36 is provided between the rear frame 24 and the rear portion of the swing arm 34. The chain transmission means 38 using an endless chain 37 is positioned between the motor shaft 33 and the shaft 35, and the power exiting the shaft motor 33 is transmitted to the rear wheel WR through the chain drive means 38. A fuel tank 40 is provided in the
front portion of the rear frame 24 to serve as an appearance part, and a driver seat 41 is positioned in such a manner as to cover the fuel tank 40 from above. With reference to Figures 2 and 3 together, the engine E is of an air-cooled type, and the engine body 30 is supported by the main frame 23 of the vehicle body frame F with its cylinder axis substantially horizontal. Thus, an intake system 42 is connected to an upper side surface of a cylinder head 32 that forms part of the engine body 30, and the intake system is additionally equipped with an air filter 43 positioned in a position obliquely upwards in front of the motor body 30, a connector pipe 44 for introducing purified air through the air filter 43 and a fuel injection valve 46 and is additionally equipped with a regulator body 45 which is placed under the filter of air 43 so as to be connected to a downward end of the connector tube 44 and an intake tube 47 which is positioned between the regulator body 45 and the cylinder head 31. With reference to Figures 4 to 6 together, a filter compartment 48 of air filter 43 is composed of an upper compartment 49, which is made of synthetic resin, and a lower compartment 50, which is made of
synthetic resin, which can be attached and detached to and from the upper compartment 49. The upper and lower compartments 49 and 50 are fixed to each other by multiple screw elements 51, 51, such that a lower end of the lid-type upper compartment 49 that is opens downwards and an upper end of the lid-like lower compartment 50 that opens upwards is joined to one another. A pair of wing nuts 49a, 49a, hold the main frame 23 in the frame of the vehicle body F on both sides, is integrally positioned in the upper portion of the upper compartment 49, and these wing nuts 49a, 49a, are attached to the main frame 23 with bolt 52, 52. Mainly, the upper compartment 49 is supported and fixed to the vehicle body frame F. The filter housing 48, a filter element 54, which is attached to an element support frame, is stored. 53 and having a cylindrical shape so that maintenance work can be performed by detaching the lower compartment 50 from the upper compartment 49. Thus, in this embodiment, the rubber washers 57, 57, which are fixed to two places of the lower portion of the element support frame 53, are supported by the compartment 50, when snapped into adjustment holes 58 formed in the lower compartment 50. When the lower compartment 50 which has the frame of
element holder 53 attached to the installed filter element 54, is joined to the upper compartment 49, the entire circumference of the upper surface of the element support frame 53 comes into close contact with an inner surface of the upper portion of the upper compartment 49 An interior of the filter housing 48 with the filter element 54 housed is divided into an unpurified chamber 55 placed around the filter element 54 and a purified chamber 56 placed in the filter element 54. The air coming from an outside section as it is shown with an arrow in Figure 3 and Figure 4 is introduced into the unpurified chamber 55 from the air inlet ports 57, 57, which are provided on both left and right sides of the lower compartment 50 and open towards the back side. In addition, the connector tube 44 is formed by connecting an ascending connector tube made of rubber 60 and a rubber descending connector tube 61, which is connected to the regulator body 45, at both ends of a tube 62, which is formed by blow molding. of synthetic resin, holding the strips 63 and 64, and an intermediate portion of the riser connector tube 60 is attached to the upper compartment 49 of the filter 48 so that an upward end of the riser connector tube 60 enters the purified chamber 56 of the filter
air 43. In this way, the riser tube 60 passes through the upper compartment 49 so that the air in the cleaning compartment 56 is directed upwards and the downward end of the riser connector tube 60 is bent to a direction down obliquely right of the back side of it. In addition, a half portion of the upstream side of the tube 62 is connected to the riser connector tube 60 and extends rearwardly to traverse a downstream direction along the main frame 23 while curving convexly to the right. A half descending portion of the tube 62 is inverted from the downward end of the rising half portion and extends to an upward obliquely to the left of the front side thereof and the downward end of the downward half portion is further inverted and curved convex upwards to go in a downward direction. In addition, the down connector tube 61 is formed in such a manner that it extends downwardly from the rising end, which is positioned to be directed in an upward direction and to be bent to the right and connected to the downward end of the tube 62, and to be bent further back to connect to regulator body 45. In other words, connector tube 44, which is
constructed by connecting the ascending and descending connecting tubes 60 and 61 to both ends of the tube 62, is formed by connecting in order: a first portion of riser tube 44a, which is formed of the riser connector tube 60 so as to direct air upwards from the interior of the air filter 43; a first downpipe portion 44b, which is formed from the upwardly ascending half portion of the tube 62 so as to back up air from the first uppipe portion 44a to be directed upwards; a second riser tube portion 44c, which is formed from the downward half portion of the tube 62 and part of the downcomer connecting tube 61 so as to reverse the air coming from the first downcomer 44b to be directed upward; and a second portion of drop tube 44d which is formed from the remaining part of the down connector tube 61 so as to revert the air coming from the second portion of the riser tube 44c, by means of which the reversed air flows in the body of lower regulator 45. Connector tube 44 is formed by bending to alternate in a direction the width of the motorcycle and toggle in a vertical direction thereof. Further, in a lower portion of the connector portion of the first downpipe portion 44b and the second uppipe portion 44c of the connector tube 44, a connector tube portion 65 extending in a
backward and downward direction, is integrally formed, and a vent tube 66 for introducing blast gases coming from the crankcase 31 of the motor body 30 is connected to the connector tube 65. With ascension in Figure 1, Figure 2 and Figure 7, an exhaust gas system 67 of the engine body 30 is connected to a side surface of the lower portion of the cylinder head 32, and the exhaust system 67 includes: an exhaust pipe 68 having an upward end connected to the surface of the bottom side of the cylinder head 32 and backward facing, a catalytic converter 69 connected to a downstream end of the first exhaust pipe 68; a second exhaust gas tube 70 has a rising end connected to the catalytic converter 69 and extends to the right side of the rear wheel WR; and an exhaust muffler 71 connected to a downstream end of the second exhaust gas pipe 70. In Figure 8, the catalytic converter 69 includes a compartment 72, an outer compartment 73 that covers the interior compartment 72 and a catalyst 74. which has a cylindrical shape and is housed in the inner compartment 72. The inner compartment 72 has a partition wall 77, which divides a portion of space that is directed towards an end side of the catalyst 74 in a
inlet chamber 75 and an outlet chamber 76, and an intermediate chamber 78 facing opposite another end side of catalyst 74 is formed in inner compartment 72. Thus, first exhaust pipe 68 passes through the compartment outer 73 is sealed and connects to the interior compartment 72 so as to cause its downward end to communicate with the inlet chamber 75, while the second exhaust tube 70 passes hermetically through the outer compartment 73 and is connected to the outside chamber 73. inner compartment 72 in order to approach its rising end communicates with the outlet chamber 76. In other words, the exhaust gas introduced from the cylinder head 32 is: introduced into the inlet chamber 75 at an end side of the catalytic converter 69; circulates to the intermediate chamber 78 on the other end side of the catalytic converter 69 through the catalyst 74; it continues to circulate towards the outlet chamber 76 on the end side of the catalytic converter 69 from the intermediate chamber 78 through the catalyst 74; and then it is introduced into the second exhaust gas pipe 70. With reference to Figure 9 and Figure 10 together, mounting plate portions 40a and 40b are installed in the lower portion of the fuel tank 40 in a protruding manner with space at the front and rear thereof, and the mounting plate portions 40a and 40b are fixed
to the rear frame 24 with bolts 79 and 80, whereby the fuel tank 40 is fixed to the rear frame 24. Fuel in the fuel tank 40 is supplied to the fuel injection valve 46 by a fuel pump 84. The fuel pump 84 has a suction pipe 85 extending vertically in the fuel tank 40, a vent 86 which is connected to a lower end of the suction pipe 85 and a discharge pipe 87 placed above the fuel tank 40. A flange 84a, which is connected to the upper portion of the fuel pump 84 so that a joint 83 is in the middle thereof and the upper surface of the fuel tank 40, and a compression plate 88, which compresses the gasket 83 and the flange 84a between itself and the fuel tank 40, are connected together to the fuel tank 40 with multiple bolts 89, 89 embedded in the side of the fuel tank 84 and the nuts 90, which are screwed into the fuel tank. The bolts 89, 89 are adjacent to the compression plate 88 or for coupling therewith, whereby the fuel pump 84 is fixed to the fuel tank 40, further a float 91 for detecting a level of fuel liquid in the fuel tank. fuel tank 40 is additionally installed in the fuel pump 84. The front portion of the driver's seat 41 is connected to the upper portion of the front side of the
fuel tank 40 through a hinge 92. The driver's seat 41 is capable of turning between a position where the fuel tank 40 is covered from above and a position where the forward rotation is performed so that the upper portion of the tank of fuel 40 is projected upwards. When placed in the position where the fuel tank 40 is capped from above, a pair of elastic members 93, 93 that come into contact with the upper surface of the fuel tank 40, is fixed to a rear underside of the driver's seat 41. The fuel is supplied from the discharge tube 87 of the fuel tank 40 is supplied to the fuel injection valve 46 through the piping means 94 and the piping means 94 is positioned so that it passes through the tank of fuel 40 vertically. In Figure 11, the channeling means 94 is comprised of a first fuel hose 95 on the side of the fuel tank 40, and a second fuel hose 96 on the side of the fuel injection valve 46. on the other hand , the upper and lower portions of a cylindrical element 98, forming a first through hole 97 that passes through the fuel tank 40 vertically, are welded to maintain the airtightness
to liquids in the whole circumference. The first fuel hose 95 forming at least part of the channeling means 94 (part in this embodiment) and connected to the discharge tube 87 of the fuel tank 40, is positioned so as to pass through the first through hole 97 , and below the fuel tank 40, the first fuel hose 95 is positioned so that it extends forwardly through the rear frame 24. Further, as illustrated in Figure 2, a washer 100 having a second through hole 99 is fixed to the front portion of the rear frame 24, and the first fuel hose 95 extends forwardly so that it passes through the second through hole 99. In at least the two ends of the first fuel hose 95, it is In other words, an end portion of the side of the second fuel hose 96 in this embodiment, a male connection 104 of a first quick connector 101 is provided to allow the first and the second h ears 97 and 91 pass through it, and an outside diameter of the male junction 104 is smaller than an internal diameter of each of the first and second holes 97 and 99. In addition, a female junction 107 of a second quick connector 102 is attached to an end portion of the fuel tank side 40 of the first fuel hose 95.
In addition, a male connection 106 of the second quick connector 102 is attached to the discharge tube 87 of the fuel tank 40 and the female connection 107 of the first fuel hose 95 is fitted and connected to the male connection 106 so that one end of the the first fuel hose 95 is connected to the discharge tube 87. Furthermore, a female connection 105 of the first quick connector 101 is coupled to one end of the second fuel hose 96, which forms the channeling means 94 together with the first hose of fuel 95, so that the male connection 107 of the other end of the first fuel hose 95 is adapted and connected thereto and for the same. In addition, the other end of the second fuel hose 96 is connected to a fuel injection valve 46 through a third quick connector 103 and a female union 109 of the first quick connector 103 is attached to the other end of the second hose of Fuel 96 and a male union 108 of the third quick connector 103 is coupled to the side of the fuel injection valve 46. In addition, the normal fuel hose generally has female connections at both ends, and the normal hose is used as the second fuel hose. fuel 96. In Figure 9 and Figure 10 again, the fuel pump 84 coupled to the upper surface of the tank
of fuel 40, the discharge tube 87 of the fuel pump 84, the connector portion of the first fuel hose 95 and an insertion portion of the first fuel hose 95 to an upper end of the cylindrical member 98 are covered with a pump cover 110 from above. The pump cover 110 is attached to the compression plate 88 for attaching the fuel pump 84 to the fuel tank 40 with multiple bolts 111, 111 thereby being fixed to the upper surface of the fuel tank 40. In addition, the intermediate portion near from one end of the second fuel hose 96 in the channeling means 94 is supported by a clip 112, and the clip 112 is installed in a support 113 attached to the motor body 30. With reference to Figure 12 and Figure 13 together, a connecting portion of the main tube 22 and the main frame 23, a reinforcement 115 is fixed, which has a mounting surface 115a inclined to be directed obliquely backwards and covers the connector portion from above. A support support 116, which extends in an upward and reverse direction, is fixed to the reinforcement 115, and an electronic control unit 117, a regulator 118 and a roll angle sensor 119 as electrical components are fixed to the support support 116. In addition, with reference to Figures 14 and 16
together, the support bracket 116 is formed by welding two curved metal plate elements, and includes: a portion of the flat mounting plate 116a installed on the mounting surface 115a of the reinforcement 115; a first support plate portion 116b, which is perpendicularly continuous to the right edge of the mounting plate portion 116a and extends in a backward and upward direction toward the rear side; a second support plate portion 116c, having a base end connected to a left side surface of a lower portion of an intermediate portion of the first support plate portion 116a in a vertical direction and extending upward and tilting to separate from the first support plate portion 116b along an upward direction; a leg portion 116d, which is substantially L-shaped and extends rearwardly from the lower portion of the intermediate portion of the first support plate portion 116b in the direction; a third support plate portion 116c, which is perpendicularly continuous to a rear end of the leg portion 116d and extends in left and right directions; a fastening hook portion 116f, which is perpendicularly continuous to an upper portion of the intermediate portion of the first support plate portion 116b in the vertical direction such that it is projected on both left and right sides; and a fourth
support plate portion 116g that is perpendicularly continuous to a rear portion of the first support plate portion 116b. A pair of welding nuts 120, 120 from top to bottom, are fixed to a rear side of the mounting surface 115a of the reinforcement 115 and the support plate portion 116a is fixed to the reinforcement 115 with bolts 121, 121 which are screwed in these nuts 120, 120. A pair of welding nut 122, 122 is fixed to a surface of the left side of the first support plate 116b with space in front of and behind it, and the regulator 118 placed on the right side of the first support plate portion 116b is fixed to the first support plate portion with the bolts 123, 123 which are screwed into both the welding nuts 122, 122. Furthermore, the electronic control unit 117 is held by a support frame 124, which is made of elastic material such as rubber, and is placed on the right side of the first support plate portion 116b and the second plate portion 116c is inserted into a support hole 125 that is formed in the support frame 124 , for the that the electronic control unit 117 is fixed to the second support plate portion 116c. The welding nuts 126 and 126 are fixed to two portions of the front surface of the third portion of
support plate 116c with intervals in the left and right directions. The roll angle sensor 119 positioned on the rear side of the third support plate portion 116e is fixed to the third support plate 116c by the bolts 128, 128 which are screwed into the welding nuts 126, 126 with washers of mounting rubber 127, 127 placed between it and the third support plate portion 116e. In addition, the support support 116, the electronic control unit 117, the regulator 118 and the roll angle sensor 119 are covered from the top and both left and right sides with a lid of electrical components 128, which has substantially the shape of U with a longitudinal section open downwards and which is formed of elastic material. The cover of electrical components 128 is supported by the support support 116 by inserting the fastening hook portion 116f of the support bracket 116 into the upper portion of the lid of the electrical components 128. In addition, the left and right legs of a driver , which sits in the driver's seat 41, are covered with a leg guard 129 and a lower portion of the leg guard 119 is secured to the bracket 131 fixed to both sides of the motor body 30. In addition, the protective coating of legs 129 is one that covers the frame
main 23 from above and is integrally connected to a central cover 130, which covers the front portion of the engine body 30 and the intake system 42 from both left and right sides, and a front upper portion of the center cover 130 is secured to both sides of the front portion of the main frame 23 near the main tube 22. Thereby, a cover portion 130a, which covers the support support 116, the electronic control unit 117 attached to the support support 116, the regulator 118 , the roll angle sensor 119 and the electrical component cover 128, is integrally installed in the center cover 130 so as to rise upwards, and an orifice portion 132 is formed in a rear portion of the cover portion 130a . A cap 133, which closes the hole portion 132, is releasably attached to the fourth support plate portion 116g of the support support 116. In other words, a mounting bolt 134, which projects rearwardly from the Portion portion 132 is fixed to the fourth support plate portion 116g. The cap 133 is attached to the support bracket 116 so as to close the hole 132 by screwing a bag nut 135 into a projection end portion of the mounting bolt 134 through the cover
The function of this embodiment is explained below and the connector tube 44, which connects the air filter 43 and the regulator body 45 to each other in the intake system 42, is formed by bending alternately in a widthwise direction. the motorcycle. Thus, it is possible to build a compact intake device while ensuring a length of intake pipe that improves the power of the low speed. In addition, the tube 62 that forms part of the connector tube 44 is formed by blow molding of synthetic resin, thereby making it easy to form the bent connector tube 44 and allow the connector tube 44 to be longer. In addition, the regulator body 45 and the motor body 30 are placed below the air filter 43, and the connector tube 44 is equipped; the first drop tube portion 44b, which is connected to the air filter 43 and directs the air downwardly from the air cleaner 43; the second riser tube portion 44c, which returns the air from the lower end of the first drop tube 44b to be directed upwards; and the second drop tube portion 44d, which is connected to the regulator body 45 so as to invert the air from the upper end of the second riser portion 44c to be directed downward. The vent tube 66 extending from the casing 32 of the body of
motor 30 is connected to the connector portion of the first downpipe portion 44b and the second uppipe portion 44c, and therefore the connector tube 44 is bent so that it alternates in a vertical direction, so that the Connector tube 44 becomes longer and more compact. At the same time, the ventilation pipe 66 is connected to the lower portion of the connector tube 44 thus making possible the return of the oil, which flows together with the gases passing from the explosion chamber to the crankcase circulating in the ventilation pipe. 66, next to the regulator body 30 from the vent tube 66, again. In addition, the filter compartment 48 of the air filter 43 is comprised of: the upper compartment 49, which is supported by the frame of the vehicle body F and to which the rising side portion of the connecting tube 44 is connected; and the lower compartment 50, which is detachably attached to the upper compartment 49. The element 54, which divides the interior of the filter compartment 48 into the unpurified chamber 55 and the purified chamber 56 that communicate with the connector tube 44. , allows the maintenance work to be carried out by detaching the lower compartment 50 of the upper compartment 49, and which is housed in the filter compartment 48. Therefore, the maintenance work of the filter element 54 can be performed
releasing the upper compartment 59 of the lower compartment 50 without releasing the connection state of the connector tube 44 of the filter 43, thus enabling the maintenance capacity to be improved. In addition, the fuel pump 84, having the discharge pipe 87 for discharging fuel placed in the upper portion of the fuel tank 40, is additionally equipped in the fuel tank 40. The channeling means 94, which performs the connection between the discharge tube 87 and the fuel injection valve 46, is positioned so that it passes through the fuel tank 40 in the vertical direction. Therefore, the channeling means 94 is not exposed to the outside in the portion corresponding to the fuel tank 40, and even in the motorcycle when the fuel tank 40 forms the appearance part, it is possible to prevent the channeling means from 94 is exposed to the outside as much as possible while avoiding an increase in the number of parts and a reduction in the properties of the article of appearance, thereby avoiding unnecessary contact with the channeling means 94, so that Hardly receive influence by the outside environment. Additionally, the cylindrical element 98, which traverses the fuel tank 40 vertically is installed in the fuel tank 40. The first hose
of fuel 95, which forms at least part of the channeling means 94 (part in this embodiment) and connects to the discharge tube 87, is positioned so that it passes through the cylindrical element 98. Therefore, the entire circumference of the upper portion and lower portion of the cylindrical member 98 is welded to the fuel tank 40, making it easy to ensure the sealing tightness of the portion where the first fuel hose 95 passes the fuel tank 40. In addition, the fuel tank 40 is installed in the rear frame 24 which forms part of the frame of the vehicle F. The first fuel hose 95, which has passed through the cylindrical element 98, is positioned so that it passes through the rear frame, thus eliminating the need of providing a special cover for covering the first fuel hose 95 and making it possible to prevent a longer portion of the first fuel hose from e 95 is exposed to the outside. In addition, the male junction 104 of the first quick connector 101 is connected to at least one of both ends of the first fuel hose 95, ie, the end portion of the side of the second fuel hose 96 in this embodiment and the male junction 104 has a diameter smaller than that of the female junction, and so
both, even if a narrow space and a small diameter through hole in the path of a laying path of the first fuel hose 95, it is simple to place the first fuel hose 95 and improve the degree of freedom of routing the first hose of fuel 95, namely, the first through hole 97 formed in the cylindrical element 84 and the second through hole 99 that is formed in the washer 100 attached to the front portion of the rear frame 24. Therefore, it is possible to increase the efficiency in the routing work of the first fuel hose 95. Furthermore, the outer diameter of the male seal 104 is smaller than the inner diameters of the first and second holes 97 and 99. In this way, it is possible to: make the first fuel hose 95 easily pass through the cylindrical element 98 and the washer 100; improve the efficiency of the routing work of the first fuel hose 95; and facilitate the work of connecting the conduit means 94 to the fuel pump 84. The female joint 105 of the first quick connector 101 is connected to the second fuel hose 96 which forms the conduit means 94 together with the first fuel hose. 95, and therefore only an optional range of the channeling means 97 can be formed through the first fuel hose 95 having the male seal
104 and the second fuel hose 96 of general type having the female seal 105 connected can be used in other ranges. In addition, the fuel pump 84 is attached to the upper surface of the fuel tank 4. On the upper surface of the fuel tank 40, the pump cover 110, which covers, from above, the fuel pump 84, is engaged. , the discharge tube 87 of the fuel pump 84, the connecting portion of the first fuel hose 95 and the insertion portion of the first fuel hose 95 to the upper end of the cylindrical element 98. In this way, it is possible to avoid unnecessary contact with the connecting portion of the first fuel hose 95 with the side of the fuel pump 84 in the channeling means 94. In addition, the support support 116, which extends in an upward and rearward direction, is fixed to the vehicle frame F at the rear of the main tube 22. The electronic control unit 117, the regulator 118 and the roll angle sensor 119 as electrical components are covered with the central pa 130, which is connected to the leg protective covering 129 covering the left and right legs of the driver, who sits in the driver's seat 41 from the front, and which covers the part of the vehicle frame F. Consequently, this configuration
it eliminates the need to provide the special part to cover the electronic control unit 117, the regulator 118 and the roll angle sensor 119, and reduces the number of parts thus allowing to contribute to cost reduction. Compared to the above, the embodiment of the present invention is described, however, the present invention is not limited to the above embodiment, although several design changes can be made without departing from the present invention described in claims. Figure 1 Left side view of a motorcycle. Figure 2 General enlarged view of Figure 1. Figure 3 Left side view showing an enlarged front portion of the motorcycle. Figure 4 Left side view showing a partial configuration of an intake system. Figure 5 A view in the direction of arrow 5 in Figure 4. Figure 6 A cross-sectional view taken along line 6-6 of Figure 5. Figure 7 A plan view showing a partial configuration of a system escape Figure 8 A cross-sectional view taken along line 8-8 of Figure 7.
Figure 9 A partially cut left side view showing a portion in the vicinity of a fuel tank. Figure 10 A directional view of the line of arrow 10-10 of Figure 9 in a state in which a driver's seat and a pump cover are omitted. Figure 11 A longitudinal sectional view showing a fuel hose connection structure. Figure 12 A partially cut-away left side view showing an enlarged front portion of a vehicle body frame. Figure 13 A perspective view showing a mounting state of electrical components of a main frame viewed from a right direction and obliquely rearward. Figure 14 A view of the left side of a support. Figure 15 A view in the direction of the arrow 15 of Figure 14. Figure 16 A view in the direction of arrow 16 of Figure 14. Explanation of the Reference Numbers 30 ENGINE BODY 44 AIR FILTER
44b FIRST LOWER PIPE 44c LIFTING PIPE 44d SECOND LOWERING PIPE 45 REGULATOR BODY AS FUEL INJECTION DEVICE 48 FILTER COMPARTMENT 49 UPPER COMPARTMENT 50 LOWER COMPARTMENT 54 FILTER ELEMENT 55 UNPURIFIED CHAMBER 56 PURIFIED CHAMBER 66 VENTILATION TUBE F VEHICLE BODY FRAME