JP4588543B2 - Arrangement structure of intake system members in fuel cell vehicle - Google Patents

Description

  The present invention relates to an arrangement structure of intake system members for a fuel cell in a fuel cell vehicle.

Conventionally, in a fuel cell vehicle intake system that supplies air to a fuel cell after the air pressurized by a supercharger is humidified by a humidifier, the humidified air is bypassed by the pressurized air at a low temperature such as when the fuel cell is started. Some have a bypass valve that switches the intake path as much as possible (for example, see Patent Document 1).
JP 2004-152600 A

By the way, in the intake system of the fuel cell vehicle, it is necessary to arrange a lot of intake system members such as a supercharger, a bypass valve, and a humidifier, but the vehicle is particularly small like a motorcycle. Considering a certain case, it is desirable that the intake system members be efficiently arranged in a small layout space and that the pressure loss (pressure loss) of the intake system is suppressed.
Therefore, the present invention provides an arrangement structure for an intake system member in a fuel cell vehicle that can efficiently arrange an intake system member while suppressing pressure loss of the intake system.

As a means for solving the above-mentioned problem, the invention described in claim 1 is a fuel cell (for example, an embodiment) that generates electric power supplied to an electric motor (for example, the motor 31 of the embodiment) that is a driving source of the vehicle using hydrogen and air as fuel. Fuel cell 51), a supercharger (for example, the supercharger 58 of the embodiment) that sucks and compresses the outside air, and humidifies the air compressed by the supercharger to the fuel cell. A humidifier to be supplied (for example, the humidifier 59 of the embodiment) and a bypass passage (for example, the bypass passage 87a of the embodiment) that connects the output side of the supercharger and the fuel cell to bypass the humidifier. And an intake system member arrangement structure in a fuel cell vehicle (for example, the fuel cell vehicle 1 of the embodiment) including a bypass valve (for example, the bypass valve 87 of the embodiment) that opens and closes the bypass passage. Lube, the conjunction is disposed outside the straight line connecting the supercharger and the humidifier (linear T1 in the Examples), while being arranged in the vicinity of the supercharger and the humidifier, the supercharging An intercooler (for example, intercooler 86 of the embodiment) that is connected to the output side of the cooler and adjusts the temperature of the air supplied to the humidifier, and the intercooler is disposed outside the straight line. The bypass valve is arranged in a space (for example, the space K1 in the embodiment) surrounded by the supercharger, the humidifier, and the intercooler.

According to this configuration, the efficiency of the layout space in the fuel cell vehicle can be increased, and the intake system members can be efficiently arranged. In particular, in a vehicle having a small layout space for members, such as a motorcycle, it is extremely important to locate a large number of intake system members, and the effect of efficiently arranging these members is high.
Moreover, the pressure loss in the intake system of the fuel cell vehicle can be reduced. That is, it is possible to reduce the pressure loss by shortening the length of the connecting member such as an intake pipe disposed between the supercharger and the humidifier and between the humidifier and the fuel cell. Become.
Further, the bypass valve is arranged in a triangular space formed by the arrangement of the humidifier, the supercharger, and the intercooler, so that the layout space in the fuel cell vehicle can be further improved in efficiency.

The invention described in claim 2 includes a down frame portion (for example, the down frame portion 10a of the embodiment) that extends obliquely downward from the head pipe (for example, the head pipe 5 of the embodiment) to the rear of the vehicle, and the down frame. An intermediate frame portion (for example, the intermediate frame portion 10b in the embodiment) that extends rearward from the rear end of the portion, and a rear frame portion (for example, that extends obliquely upward from the rear end of the intermediate frame portion with respect to the vehicle rearward) And a rear frame (for example, an embodiment) that pivotally supports a drive wheel (for example, the rear wheel 32 of the embodiment) having a main frame (for example, the main frame 10 of the embodiment). An example rear swing arm 21) is swingably connected, and an occupant seat (for example, the seat 41 in the embodiment) is disposed above the main frame. In the arrangement structure of the intake system members in the fuel cell vehicle (for example, the fuel cell vehicle 1 of the embodiment), the supply electric power to the electric motor (for example, the motor 31 of the embodiment) that is the driving source of the vehicle is generated using hydrogen and air as fuel. A fuel cell (for example, the fuel cell 51 of the embodiment), a supercharger (for example, the supercharger 58 of the embodiment) that sucks outside air, compresses it, and outputs it, and humidifies the air compressed by the supercharger. A humidifier (for example, a humidifier 59 in the embodiment) that supplies the fuel cell, and a bypass passage that bypasses the humidifier by connecting the output side of the supercharger and the fuel cell (for example, implementation) An example bypass passage 87a) and a bypass valve that opens and closes the bypass passage (for example, the bypass valve 87 of the embodiment), the bypass valve is a straight line that connects the supercharger and the humidifier (for example, Together are positioned outside the straight line T1) of 施例, characterized in that it is arranged in the vicinity of the supercharger and the humidifier.

According to this configuration, the efficiency of the layout space in the fuel cell vehicle can be increased, and the intake system members can be efficiently arranged. In particular, in a vehicle having a small layout space for members, such as a motorcycle, it is extremely important to locate a large number of intake system members, and the effect of efficiently arranging these members is high.
Moreover, the pressure loss in the intake system of the fuel cell vehicle can be reduced. That is, it is possible to reduce the pressure loss by shortening the length of the connecting member such as an intake pipe disposed between the supercharger and the humidifier and between the humidifier and the fuel cell. Become.

According to a third aspect of the present invention, the supercharger, the humidifier, and the bypass valve are disposed in a space (for example, the front space K3 in the embodiment) located below the seat and above the rear frame. It is characterized by being.

  According to this configuration, it is possible to further increase the efficiency of the layout space by effectively using the dead space between the seat and the rear frame in the fuel cell vehicle.

According to the present invention , the intake system members can be arranged efficiently, and the pressure loss of the intake system can be reduced.
According to the present invention , the efficiency of the layout space in the fuel cell vehicle can be improved.
According to the present invention, it is possible to effectively use the dead space in the fuel cell vehicle.

  Embodiments of the present invention will be described below with reference to the drawings. In the following description, the directions such as front, rear, left and right are the same as those in the vehicle unless otherwise specified. In the figure, the arrow FR indicates the front of the vehicle, the arrow LH indicates the left side of the vehicle, and the arrow UP indicates the upper side of the vehicle.

  As shown in FIGS. 1 to 3, the fuel cell vehicle 1 in the form of a motorcycle is based on electric power supplied from a fuel cell 51 mounted substantially in the center of the vehicle body, and a motor (motor) for driving the vehicle. 31 is driven to run. The fuel cell vehicle 1 is also a scooter type vehicle having a low floor portion (hereinafter simply referred to as a floor portion) 3, and the fuel cell 51 having a substantially rectangular parallelepiped shape is disposed inside the floor portion 3. And in the wheel of the rear wheel 32 which is a driving wheel of the fuel cell vehicle 1, the motor 31 as a so-called wheel-in motor is disposed. The motor 31 has a motor main body and a speed reduction mechanism in its casing 31a and is configured as an integral unit. The output shaft of the motor 31 is arranged coaxially with the rear wheel axle 32a, for example, in the wheel. Mounted from the left side.

  The front wheel 11 of the fuel cell vehicle 1 is pivotally supported at the lower ends of a pair of left and right front forks 12, and the upper portion of each front fork 12 is pivoted to the head pipe 5 at the front end of the vehicle body frame 4 via a steering stem 13. Be supported. A bar-type handle 14 is attached to the upper end portion of the steering stem 13, and a throttle grip 15 is attached to the right grip portion of the handle 14, and the rear and front brake levers 16, 17 are located in front of the left and right grip portions. Are arranged respectively.

  A pivot plate 8 is provided at the rear part of the vehicle body frame 4 so as to be positioned slightly rearward so as to be located rearward as the upper side. The part slightly lower than the middle part of the pivot plate 8 includes: A front end portion of a rear swing arm (rear frame) 21 is pivotally supported via a pivot shaft 9 so that a rear end side thereof can swing in the vertical direction of the vehicle body. The rear swing arm 21 has a left arm body 23 extending to the front end portion of the motor 31 to support the casing 31a of the motor 31, while a right arm body 24 extends to the center position of the rear wheel 32 to support the rear wheel axle 32a. Pivot. A motor unit 20 as a swing unit of the fuel cell vehicle 1 is mainly configured by such a rear swing arm 21 and a motor 31.

  A rear cushion 33 extending in the front-rear direction of the vehicle body is disposed at a lower portion of the vehicle body frame 4 and below the fuel cell 51. The rear end portion of the rear cushion 33 is connected to the lower portion of the vehicle body frame 4, while the front end portion of the rear cushion 33 is connected to the lower portion of the motor unit 20 (rear swing arm 21) via the link mechanism 34. The link mechanism 34 causes the rear cushion 33 to stroke in the front-rear direction as the motor unit 20 swings in the vertical direction. Due to the stroke of the rear cushion 33, an impact or vibration input to the motor unit 20 is caused. It is absorbed gently.

  The vehicle body frame 4 branches from the upper part of the head pipe 5 to the left and right, extends obliquely downward and downward, bends at a substantially intermediate height in the vertical direction of the vehicle body, and then extends rearward. The pipe 5 has a down tube 7 that branches right and left from the lower part, extends obliquely rearward and downward, bends at the lower end of the vehicle body, and extends rearward. The rear end part of each upper tube 6 and the downtube 7 The rear end portion is coupled to the upper end portion and the lower end portion of the pivot plate 8 located behind the fuel cell 51, respectively. Hereinafter, in the down tube 7, a portion from the head pipe 5 to the bent portion 7 c at the lower end of the vehicle body will be described as a front side portion 7 a, and a portion from the bent portion 7 c to the pivot plate 8 will be described as a lower side portion 7 b.

  Here, by the upper tube 6, the down tube 7, and the pivot plate 8, a down frame portion 10a extending obliquely downward and rearward from the head pipe 5, and an intermediate frame portion 10b extending rearward from the rear end of the down frame portion 10a, A rear frame portion 10c extending obliquely upward and rearward from the rear end of the intermediate frame portion 10b is constituted, and the main frame 10 in the fuel cell vehicle 1 which is a scooter type vehicle is constituted by these frame portions 10a, 10b and 10c. The

  Each upper tube 6 extends further rearward from the pivot plate 8 so as to reach the rear end of the vehicle body, and the latter half of each upper tube 6 is used as a seat frame for supporting a passenger seat 41. It is done. That is, a portion of the upper tube 6 positioned in front of the pivot plate 8 (portion constituting the upper rear portion of the main frame 10) supports the driver's seat in the first half of the seat 41, and the pivot plate in the upper tube 6. A portion located rearward of 8 supports a seating portion for the rear passenger of the rear half of the seat 41.

  The fuel cell vehicle 1 is covered with a vehicle body cover 42 whose body is mainly made of synthetic resin. The vehicle body cover 42 also functions as a windshield, and a part thereof constitutes the floor portion 3 together with the vehicle body frame 4 (main frame 10). A main stand 37 that supports the vehicle body in an upright state is attached to the lower center of the vehicle body frame 4, and a side stand 38 that supports the vehicle body in an upright state in which the vehicle body is inclined to the left side is attached to the lower left side of the vehicle body frame 4. .

Here, the outline of the fuel cell system of the fuel cell vehicle 1 will be described with reference to FIG.
The fuel cell 51 is a well-known solid polymer membrane fuel cell (PEMFC) in which a large number of unit cells (unit cells) are stacked. Hydrogen gas is supplied to the anode side as a fuel gas, and oxidant gas is supplied to the cathode side. By supplying oxygen-containing air as described above, electric power is generated and water is generated by an electrochemical reaction.

  The hydrogen gas as the fuel gas is supplied from the hydrogen cylinder 52 through the shut-off valve 53 to the fuel cell 51 with a predetermined pressure (in other words, in a predetermined high pressure state), and after being used for power generation, It is introduced into the channel 54. In the hydrogen circulation channel 54, unreacted hydrogen gas is repeatedly supplied to the fuel cell 51 together with fresh hydrogen gas from the hydrogen cylinder 52. Hydrogen gas circulating in the hydrogen circulation channel 54 can be introduced into the diluting device 56 via the purge valve 55.

  On the other hand, the air as the oxidant gas is introduced into the supercharger 58 through the air cleaner device 57, and then supplied to the fuel cell 51 in a state of being pressurized (compressed) to a predetermined pressure, and for power generation. After being provided, it is introduced into the dilution device 56.

  Here, reference numeral 86 in the figure denotes a water-cooled intercooler that cools the air (oxidant gas) compressed by the supercharger 58, and reference numeral 59 humidifies the oxidant gas after passing through the intercooler 86. The reference numeral 87a indicates a bypass passage that connects the supercharger 58 and the fuel cell 51 to bypass the intercooler 86 and the humidifier 59, and reference numeral 87 indicates that the bypass passage 87a is opened and closed to start the fuel cell 51. A bypass valve for bypassing the intercooler 86 and the humidifier 59 to the compressed air from the supercharger 58 when the temperature is low, such as a time, 88 is a back pressure valve for adjusting the pressure of the oxidant gas in the fuel cell 51. .

  Then, the purge valve 55 provided in the hydrogen circulation channel 54 is opened to introduce hydrogen gas after the reaction into the diluting device 56. The hydrogen gas accumulated in the diluter 56 is mixed and diluted with the exhaust air from the fuel cell 51 also accumulated in the diluter 56 and then released to the atmosphere via the silencer 61.

  Further, part of the generated water in the fuel cell 51 is introduced into the humidifier 59 as water vapor together with the air (off gas) discharged from the fuel cell 51, and new air (oxidant gas) before the fuel cell 51 is supplied. Used for humidification. In addition, the water | moisture content which was not extracted with the humidifier 59 is discharged | emitted as water vapor | steam with the reacted gas after passing through the dilution apparatus 56, or is discharged | emitted via a drain pipe etc. after condensing in the dilution apparatus 56.

The operation of the fuel cell system is controlled by an ECU (Electrical Control Unit) 70 and a VCU (Voltage Control Unit, control unit) 62.
The ECU 70 is connected to the VCU 62, and the ECU 70 performs power generation control in the fuel cell 51, regenerative power control in the motor 32, and the like based on a throttle opening signal, a brake signal, a vehicle speed signal, and the like from the throttle grip 15. I do.

  The VCU 62 is composed of a switching element such as an FET that is a heat source, converts electric power supplied from the battery 63 or the fuel cell 51 based on an instruction from the ECU 70 (for example, a step-up chopper), a motor driver 64, A necessary voltage is supplied to the supercharger 58 and the like. That is, for example, by adjusting the voltage supplied to the supercharger 58 and the like based on an instruction from the ECU 70 and adjusting the air pressure supplied to the fuel cell 51, the output power from the fuel cell 51 is increased. It is planned. Although not shown, the VCU 62 is connected to all power drive components such as the purge valve 55, the shutoff valve 53, the back pressure valve 88, the bypass valve 87, and the water pump 67.

  The cooling system in the fuel cell system forms a cooling water channel 66 that communicates each water channel in the water jacket of the fuel cell 51 and the motor 31 and in the cooling plate (cooler) 65 adjacent to the intercooler 86 and the motor driver 64. In addition, a water pump 67 and a radiator 68 are provided in the cooling water channel 66.

  In such a cooling system, the operation of the water pump 67 causes the cooling water to circulate and circulate in the cooling water channel 66, thereby absorbing heat from the fuel cell 51, the motor 31, the oxidant gas, and the motor driver 64. Heat is dissipated by the radiator 68. Reference numeral 69 in the figure denotes a thermostat for circulating the cooling water without using the radiator 68 when the fuel cell 51 is at a low temperature or the like.

  1-3, the hydrogen cylinder 52 is a general high-pressure gas cylinder having a cylindrical appearance, and is a general composite container made of metal and fiber reinforced plastic. Such a hydrogen cylinder 52 is arranged above the rear wheel 32 and on the right side of the rear part of the vehicle body so that the axis thereof is slightly lowered forward. The hydrogen cylinder 52 has its right end (outer end) positioned slightly outside the outer end of the upper tube 6 on the right side of the vehicle body, and its left end (inner end) positioned slightly outside the outer end of the rear wheel 32. To be arranged.

  The front and rear end portions of the hydrogen cylinder 52 are formed in a spherical shape, and are arranged so that the front end portion thereof is positioned in front of the pivot plate 8 and the rear end portion thereof is positioned at the rear end portion of the vehicle body. At the rear end of such a hydrogen cylinder 52, a main plug 71 and a hydrogen filling port 72 of the hydrogen cylinder 52 are disposed.

  The upper tube 6 on the left side of the vehicle body is inclined so as to rise slightly rearward and extends substantially linearly rearward, while the upper tube 6 on the right side of the vehicle body is lower in the vicinity of the pivot plate 8 than the upper tube 6 on the left side of the vehicle body. It is provided so as to change gradually toward Each upper tube 6 is provided in the vicinity of the pivot plate 8 so as to gradually change outward in the vehicle width direction.

  Further, the upper tube 6 on the right side of the vehicle body is provided such that its lower end substantially overlaps the lower end of the hydrogen cylinder 52 in a side view of the vehicle body, and is bent upward at the rear end portion of the vehicle body. After extending toward the left side of the vehicle body so as to avoid the main plug 71 and the hydrogen filling port 72, it is bent downward and joined to the rear end portion of the upper tube 6 on the left side of the vehicle body.

  The fuel cell 51 has a rectangular parallelepiped shape that is wide in the vehicle width direction and flat in the vertical direction, and the front wall portion has supply and discharge ports for oxidant gas and hydrogen gas, and inlet and outlet ports for cooling water. Are provided respectively.

  5 and 6, the VCU 62 having a flat box shape in the vertical direction is disposed close to the upper side of the fuel cell 51, and the upper rear side of the fuel cell 51 is in the vehicle width direction. A humidifier 59 extending in the vicinity is disposed in close proximity, and a supercharger 58 is disposed in close proximity to the upper left side of the left side of the humidifier 59. The supercharger 58 is formed by disposing a drive motor 58b having a rotation axis parallel to the vehicle width direction on the left side of the supercharger main body 58a. Is connected to the left side of the suction duct 57b.

  The suction duct 57b is provided so that the right side thereof is positioned below the hydrogen cylinder 52, and the front end of an air cleaner case 57a that is also positioned below the hydrogen cylinder 52 is connected to the right side. The air cleaner device 57 is mainly composed of the air cleaner case 57a and the suction duct 57b.

  A discharge duct 85 having a chamber portion 85b is connected to a discharge port (output port) 58c on the diagonally upper front side of the supercharger main body 58a. The discharge duct 85 forms an upstream connection portion 85a extending in an upwardly convex arc shape in a side view from the discharge port 58c, and then extends so as to spread rightward along the upper surface of the housing 59b of the humidifier 59. A chamber portion 85b is formed. From the right side of the chamber portion 85 b, the downstream side connection portion 85 c extends obliquely downward and rearward, and the downstream side connection portion 85 c is connected to the intercooler 86. A back pressure valve 88 is disposed close to the left side of the humidifier 59 (on the left side of the chamber portion 85b), a bypass valve 87 is disposed close to the rear side of the right side of the humidifier 59, and obliquely below and behind the bypass valve 87. An intercooler 86 is arranged in close proximity.

  On the left side of the rear part of the vehicle body, a silencer 61 that is flat in the vehicle width direction is disposed so as to be positioned on the outer side in the vehicle width direction than the upper tube 6 on the left side of the vehicle body. The silencer 61 has a generally rectangular shape when viewed from the side of the vehicle body, and is disposed in a state of being inclined rearward and upward on the upper left side of the rear wheel 32, and is provided in a rear half portion of the exhaust pipe 77 inclined rearwardly.

  The radiator 68 is divided into a relatively small upper radiator 68 a located in front of the head pipe 5 and a relatively large lower radiator 68 b located in front of the front side 7 a of each down tube 7. A water pump 67 is disposed on the right rear side of the lower radiator 68 b, and a thermostat 69 is disposed on the diagonally lower rear side of the water pump 67. In addition, batteries 63 that are flat in the vehicle width direction are disposed inside the vehicle body cover 42 located on both sides of the lower radiator 68b.

  A diluting device 56 is disposed between the bent portions 7c of each down tube 7 so as to protrude below the lower end of the lower side portion 7b. An exhaust short pipe 78 is led out from the dilution device 56. The exhaust short pipe 78 is connected to the front side of the lower side 7b of the down tube 7 on the left side of the vehicle body, and the exhaust pipe 77 is led out from the rear side of the lower side 7b. Is done. That is, the down tube 7 on the left side of the vehicle body constitutes a part of the exhaust flow path of the reacted gas, so that the exhaust gas from the dilution device 56 is discharged from the exhaust short pipe 78, the lower side 7b of the down tube 7, and the exhaust gas. It is released into the atmosphere via a pipe 77.

The motor driver 64 has a substantially square shape when viewed from the side of the vehicle body, and is attached to the outer side in the vehicle width direction of the left arm body 23 of the rear swing arm 21 via a cooling plate 65.
An arm cover 21 a as a part of the rear swing arm 21 is attached to the motor unit 20. The arm cover 21a covers and protects the rear swing arm 21, the motor 31, the motor driver 64, the cooling plate 65, and the like as appropriate. The arm cover 21a is provided with an outside air inlet and an outlet (not shown) so that the outside air can be circulated therein.

  The humidifier 59 includes, for example, a hollow fiber membrane module in the housing 59b. Between the oxidant gas before supplying the fuel cell and the off gas from the fuel cell 51 via the hollow fiber membrane module. Move the moisture to humidify the fuel gas. The casing 59b has a cylindrical shape that is long in the vehicle width direction, and the oxidant gas and off-gas lead-in / out ducts are provided at both ends thereof.

  Here, the bypass valve 87 is disposed between the supercharger 58 and the humidifier 59 in a side view of the vehicle body and is offset obliquely downward and rearward from a rearward rising straight line T1 connecting them. More specifically, the bypass valve 87 has an approximate center (for example, the center of the outer shape of the bypass valve 87 main body), the approximate center of the supercharger 58 (for example, the rotation center of the drive motor 58b) and the approximate center of the humidifier 59 (for example, It is arranged so as to be located obliquely downward and rearward from a rearwardly rising straight line T1 connecting the cylindrical center of the housing 59b.

  Here, an intercooler 86 is disposed obliquely below and behind the bypass valve 87. Therefore, the bypass valve 87 is a triangle surrounded by the intercooler 86, the supercharger 58, and the humidifier 59 in a side view of the vehicle body. It arrange | positions in the space K1 of a shape. More specifically, in the bypass valve 87, the approximate center thereof is the approximate center of the intercooler 86 (for example, the external shape center of the intercooler 86 main body), the approximate center of the supercharger 58, and the approximate center of the humidifier 59. It arrange | positions so that it may be located in the triangular space K1 enclosed by the straight line which connects a center. Note that the bypass valve 87 is disposed behind the rear end of the fuel cell 51.

  5 and 6, an arrow 90 indicates the flow of oxidant gas along the main passage from the supercharger 58 to the fuel cell 51 via the bypass valve 87, the intercooler 86, and the humidifier 59, and the arrow 90 '. The flow of oxidant gas along the bypass passage 87a directly from the supercharger 58 toward the fuel cell 51 is shown.

The oxidant gas flowing through the main passage is turned forward and obliquely downward along the downstream connection portion 85c of the discharge duct 85, enters the housing 59b from the right end portion of the humidifier 59, and enters the right. After turning back to the left, it flows again forward from the right end of the humidifier 59.
On the other hand, the oxidant gas flowing through the bypass passage 87a once goes obliquely downward and rearward along the downstream side connection portion 85c, and then turns forward through the bypass valve 87 adjacent to the right side of the downstream side connection portion 85c. It joins from the upper part to the right end part of 59, and flows toward the front.

  A swing space K2 for allowing the motor unit 20 and the rear wheel 32 to swing is secured below the rear portion of the vehicle body (below the rear portion of the seat 41). The rocking space K2 is provided corresponding to the wheel travel of the rear wheel 32. Therefore, a front space K3 as a dead space is generated at a position ahead of the rear wheel 32. In this embodiment, the supercharger 58, the humidifier 59, the bypass valve, and the intercooler 86 face the front space K3, in other words, the front part of the rear swing arm 21 (frontward of the rear wheel 32). The intake system members are efficiently arranged by effectively using the front space K3 as a dead space.

  As described above, the arrangement structure of the intake system members in the embodiment described above includes the down frame portion 10a extending obliquely downward from the head pipe 5 with respect to the vehicle rear side, and the vehicle rear side from the rear end of the down frame portion 10a. A main frame 10 having an intermediate frame portion 10b extending to the rear and a rear frame portion 10c extending obliquely upward with respect to the rear of the vehicle from the rear end of the intermediate frame portion 10b. A fuel cell vehicle 1 as a motorcycle in which a rear swing arm 21 that pivotally supports a rear wheel 32 that is a wheel is swingably connected, and an occupant seat 41 is disposed above the rear portion of the main frame 10. A fuel cell 51 for generating power supplied to a motor 31 that is a driving source of a vehicle using hydrogen and air as fuel, and for sucking outside air A supercharger 58 that compresses and outputs, a humidifier 59 that humidifies and supplies the air compressed by the supercharger 58 to the fuel cell 51, a discharge side of the supercharger 58, and the fuel A bypass passage 87a that connects between the battery 51 and bypasses the humidifier 59; and a bypass valve 87 that opens and closes the bypass passage 87a. The bypass valve 87 includes the supercharger 58 and the humidifier. It is arranged outside the straight line T <b> 1 connecting the container 59, and is disposed in the vicinity of the supercharger 58 and the humidifier 59.

According to this configuration, the efficiency of the layout space in the fuel cell vehicle 1 can be improved, and the intake system members can be efficiently arranged. In particular, in a vehicle having a small layout space for members, such as a motorcycle, it is extremely important to locate a large number of intake system members, and the effect of efficiently arranging these members is high.
Further, the pressure loss in the intake system of the fuel cell vehicle 1 can be reduced. That is, the pressure loss is reduced by shortening the length of the connecting member such as the intake pipe disposed between the supercharger 58 and the humidifier 59 and between the humidifier 59 and the fuel cell 51. It becomes possible.

  The intake system member arrangement structure includes an intercooler 86 that is connected to the discharge side of the supercharger 58 and adjusts the air temperature supplied to the humidifier 59. The intercooler 86 includes: The bypass valve 87 is disposed outside the supercharger 58 and the straight line T1, and the bypass valve 87 is disposed in a space K1 surrounded by the supercharger 58, the humidifier 59, and the intercooler 86. In addition, the bypass valve 87 is disposed in the space K1 in the side view of the vehicle body formed by the arrangement of the humidifier 59, the supercharger 58, and the intercooler 86, and the efficiency of the layout space in the fuel cell vehicle 1 is further increased. Can be realized.

Further, in the arrangement structure of the intake system members, the supercharger 58, the humidifier 59, and the bypass valve 87 are located at the front part below the rear part of the seat 41 and above the front part of the rear swing arm 21. It is arranged in the space K3.
According to this configuration, it is possible to further improve the efficiency of the layout space by effectively using the front space K3 that is a dead space between the seat 41 and the front portion of the rear swing arm 21 in the fuel cell vehicle 1.

The present invention is not limited to the above-described embodiment. For example, even when the intercooler 86 is eliminated, the bypass valve 87 is disposed at a position deviating from the straight line T1 connecting the supercharger 58 and the humidifier 59. If it is. Further, the bypass valve 87 is not limited to a position below the straight line T1, but may be any structure as long as it is disposed above or behind the line.
And the structure in the said Example is an example of this invention, and it cannot be overemphasized that various changes are possible in the range which does not deviate from the summary of this invention not to be limited to application to a motorcycle.

It is a left view of the fuel cell vehicle in the Example of this invention. It is a right view of the fuel cell vehicle. It is a bottom view of the fuel cell vehicle. It is a principal block diagram of the fuel cell system of the said fuel cell vehicle. It is a right view which shows the principal part of the said fuel cell vehicle. It is a top view which shows the principal part of the said fuel cell vehicle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fuel cell vehicle 5 Head pipe 10 Main frame 10a Down frame part 10b Intermediate frame part 10c Rear frame part 32 Rear wheel (drive wheel)
21 Rear swing arm (rear frame)
31 Motor (electric motor)
41 seat 51 fuel cell 58 supercharger 59 humidifier 86 intercooler 87 bypass valve 87a bypass passage T1 straight line K1 space K3 front space (space)

Claims (3)

A fuel cell that uses hydrogen and air as fuel to generate supply power for an electric motor that is a driving source of the vehicle, a supercharger that sucks outside air, compresses it, and outputs it, and humidifies the air compressed by the supercharger A humidifier that supplies the fuel cell, a bypass passage that connects the output side of the supercharger and the fuel cell to bypass the humidifier, and a bypass valve that opens and closes the bypass passage In the arrangement structure of the intake system member in the fuel cell vehicle equipped with
The bypass valve is disposed outside a straight line connecting the supercharger and the humidifier, and is disposed in the vicinity of the supercharger and the humidifier ,
The intercooler is connected to the output side of the supercharger and adjusts the air temperature supplied to the humidifier, the intercooler is disposed outside the straight line, and the bypass valve is An arrangement structure of an intake system member in a fuel cell vehicle, which is arranged in a space surrounded by the supercharger, a humidifier, and an intercooler in a side view of the vehicle body . A down frame portion extending obliquely downward from the head pipe to the rear of the vehicle, an intermediate frame portion extending from the rear end of the down frame portion to the rear of the vehicle, and from the rear end of the intermediate frame portion to the rear of the vehicle A rear frame part extending obliquely upward, and a rear frame pivotally supporting the drive wheels is slidably connected to the main frame, and above the main frame is a passenger frame. In the arrangement structure of the intake system member in the fuel cell vehicle in which the seat is arranged,
A fuel cell that uses hydrogen and air as fuel to generate supply power for an electric motor that is a driving source of the vehicle, a supercharger that sucks outside air, compresses it, and outputs it, and humidifies the air compressed by the supercharger A humidifier that supplies the fuel cell, a bypass passage that connects the output side of the supercharger and the fuel cell to bypass the humidifier, and a bypass valve that opens and closes the bypass passage And
The bypass valve is disposed outside a straight line connecting the supercharger and the humidifier, and is disposed in the vicinity of the supercharger and the humidifier. Arrangement structure of members. The intake system for a fuel cell vehicle according to claim 2 , wherein the supercharger, the humidifier, and the bypass valve are disposed in a space below the seat and above the rear frame. Arrangement structure of members.

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