JP6119429B2 - Fluid discharge device - Google Patents

Description

  The present invention relates to a fluid discharge device used for transport equipment that uses high-pressure gas, a portable high-pressure gas device for medical use or industrial use, and more particularly to a fluid discharge device for a motorcycle using a fuel cell as a drive source. .

  Known as a transport device or portable high-pressure gas device that discharges exhaust gas (exhaust fluid) into the atmosphere to prevent the container from bursting when the pressure in the container filled with high-pressure gas rises abnormally It has been. Such transport equipment and portable high-pressure gas devices are provided with a fluid discharge device for discharging exhaust gas to the outside. Conventionally, as such a fluid discharge device, one that can switch the discharge direction of the exhaust gas in accordance with the posture is known (see, for example, Patent Documents 1-3). The fluid discharge device described in Patent Document 1 houses a check ball in a three-way valve with an exhaust gas discharge port directed in the vertical direction, and the check ball seals either the upper or lower discharge port according to the posture. By switching the outlet.

  Further, the fluid discharge device described in Patent Document 2 is configured by forming a plurality of slits over the entire circumference at the tip of the discharge pipe extending in the horizontal direction, and attaching a C-shaped cover to the tip of the discharge pipe. The The weight of the C-shaped cover is biased so that the cut-out portion faces downward, and the C-shaped cover rotates at the tip of the discharge pipe according to the posture of the fluid discharge device, and the discharge direction of the exhaust gas The notch part that faces becomes downward. Further, in the fluid discharge device described in Patent Document 3, a discharge port is formed obliquely downward in a discharge tube extending downward, and the discharge tube is rotated around its axis with a tool such as a screwdriver so that the direction of the discharge port Is adjusted.

JP 2004-136828 A JP 2007-106262 A JP 2009-162255 A

  However, in the fluid discharge device described in Patent Document 1, when the three-way valve is in the horizontal orientation, the exhaust gas is discharged from the discharge port directed in the horizontal direction. Further, in the fluid discharge device described in Patent Document 2, when the discharge pipe is oriented vertically, the cutout of the C-shaped cover is directed horizontally and the exhaust gas is not discharged from below. Furthermore, since the fluid discharge device described in Patent Document 3 needs to adjust the discharge direction of the exhaust gas with a tool, the discharge direction cannot be automatically adjusted according to the posture.

  This invention is made | formed in view of this point, and it aims at providing the fluid discharge apparatus which can discharge | emit exhaust gas toward the ground irrespective of the attitude | position of an apparatus.

  The fluid discharge device of the present invention is a fluid discharge device that is provided in a reaction device that uses a high-pressure fluid and discharges the discharge fluid in the reaction device to the outside, and is a main body connected to a pipe extending from the reaction device And a rotating part that is supported rotatably with respect to the main body part, and has a protrusion on the outer peripheral side so as to give a weight bias around the rotation axis, and the rotating part has a predetermined orientation. A contact portion that contacts the protrusion, and a first discharge passage is formed in the rotating portion to direct the fluid discharged from the pipe toward the protrusion, and the protrusion and the contact portion are aligned. The surface is formed with a second discharge channel that is continuous with the first discharge channel and discharges the discharged fluid downward, and the rotating portion receives gravity to project the projecting portion from the contact portion. Leaving the first discharge channel open to the outside. .

  According to this configuration, when the reaction apparatus is in the normal posture, the rotating part is maintained in a predetermined direction, so that the second discharge path is formed by the protrusion and the contact part. For this reason, the discharged fluid is discharged downward from the second discharge path through the first discharge path. On the other hand, when the reaction device is changed from the normal posture to the horizontal posture or the like, since the weight of the rotating part is biased toward the protruding part around the rotating shaft, the rotating part receives the gravity and rotates to receive the first discharge. The flow path is directed downward. In addition, the first discharge flow path is opened to the outside when the protrusion is separated from the contact portion that forms the second discharge flow path by the rotation of the rotation unit. For this reason, the discharged fluid is discharged directly downward from the first discharge channel. Thus, the discharge flow path of the discharged fluid is switched according to the attitude of the reaction apparatus, and the discharged fluid can always be discharged downward regardless of the attitude of the reaction apparatus.

  In the fluid discharge device of the present invention, the contact portion holds the protrusion so as to be detachable so that the rotating portion is in a predetermined direction. According to this configuration, unnecessary rotation of the rotating portion can be suppressed by the holding force of the contact portion, and the discharge direction of the discharged fluid can be prevented from being switched due to vibration or the like.

  In the fluid discharge device of the present invention, the contact portion holds the protrusion by magnetic force. According to this configuration, the projecting portion can be held on the contact portion with a simple configuration without requiring a complicated structure.

  In addition, the fluid discharge device of the present invention is attached to the reaction device with the rotation shaft inclined so that the contact portion side is on the lower side. According to this configuration, when the reaction apparatus is in a normal posture, a holding force that tries to maintain the contact state with the contact portion is applied to the projection portion by gravity. Therefore, even if the protrusion is displaced from the contact position, the protrusion easily returns to the original contact position due to the weight of the rotating part. For this reason, it can prevent that the discharge direction of discharge fluid switches by vibration etc.

  The fluid discharge device of the present invention further includes a cap that opens and closes the first discharge flow path, and the cap is biased in the closing direction by a force weaker than the pressure of the discharged fluid. According to this configuration, when the gas is discharged from the reactor, the cap is opened and the discharged fluid is discharged. Therefore, when the gas is not discharged from the reaction apparatus, the cap is not opened, and foreign substances can be prevented from entering the reaction apparatus.

  In the fluid discharge device of the present invention, the cap is biased in the closing direction by a magnetic force. According to this configuration, the opening and closing of the cap can be switched with a simple configuration without requiring parts such as a spring. Further, there is no part on the discharge flow path, and the discharge of the discharged fluid is not hindered by the part.

  In the fluid discharge device of the present invention, the cap is biased in the opening direction by the pressure of the discharged fluid, thereby restricting relative rotation between the main body portion and the rotating portion. According to this configuration, since the position of the protrusion with respect to the contact portion is fixed by receiving the pressure of the discharged fluid, the discharge flow path is not switched during discharge of the discharged fluid.

  Further, the fluid discharge device of the present invention is provided in a motorcycle using gaseous fuel as a power source as the reaction device. According to this configuration, even when the posture changes due to the vehicle falling or the like, the discharged fluid can always be discharged downward without undue diffusion to the surroundings.

  According to the fluid discharge device of the present invention, the discharge fluid is switched so that the discharge flow path of the discharge fluid always faces downward according to the attitude of the reaction device, so that the discharge fluid is not always diffused to the surroundings and always discharged downward. it can.

1 is a side view of a motorcycle according to the present embodiment. It is a perspective view of the fluid discharge apparatus which concerns on this Embodiment. It is a section perspective view of the fluid discharge device concerning this embodiment. It is explanatory drawing of the opening / closing operation | movement of the cap which concerns on this Embodiment. It is explanatory drawing of switching operation | movement of the discharge path by the fluid discharge apparatus concerning this Embodiment.

  Hereinafter, the present embodiment will be described in detail with reference to the accompanying drawings. In the following, an example in which the fluid discharge device of the present invention is applied to a scooter type fuel cell motorcycle will be described. However, the present invention is not limited to this and can be changed as appropriate. For example, the fluid discharge device of the present invention may be applied to other types of vehicles.

  With reference to FIG. 1, a schematic configuration of the entire motorcycle according to the present embodiment will be described. FIG. 1 is a side view of the motorcycle according to the present embodiment. In the following drawings, the front of the vehicle body is indicated by an arrow FR, and the rear of the vehicle body is indicated by an arrow RE.

  As shown in FIG. 1, a scooter type motorcycle 1 is configured by attaching various covers as a vehicle body exterior to a vehicle body frame (not shown) made of steel or aluminum alloy. The motorcycle 1 is provided with a front cowl 21 so as to protect the front of the rider, and a leg shield 22 for protecting the rider's legs is provided on the back of the front cowl 21. Further, a step board 23 extends rearward from the lower end of the leg shield 22, and a seat cowl 24 is provided below the rider seat 31 and the pillion seat 32 behind the step board 23.

  In the motorcycle 1, a leg rest space in which a leg portion of the rider is placed is formed in front of the rider seat 31 by the leg shield 22 and the step board 23. The footrest space is divided into left and right by a center console 25 located at the center in the vehicle width direction. The center console 25 extends in the front-rear direction so as to connect the leg shield 22 and the seat cowl 24. By placing the rider's legs in the left and right footrest space so as to straddle the center console 25, the left and right legs are protected from running wind and the like.

  On the front side of the vehicle body, a pair of front forks 41 are supported so as to be able to swing left and right via a steering shaft (not shown) provided on a head pipe (not shown). Above the pair of front forks 41, a handle bar 43 for steering the front wheels 42 is provided. A brake lever (not shown) for the rear wheel 54 is provided on the handle bar 43 on the left side of the vehicle body, and a brake lever 44 for the front wheel 42 is provided on the handle bar 43 on the right side of the vehicle body. A front fender 45 that covers the upper part of the front wheel 42 is provided at the lower part of the pair of front forks 41 while the front wheel 42 is rotatably supported.

  The front wheel 42 is provided with a brake caliper 47 that sandwiches the brake disc 46 and the brake disc 46. A headlamp 48 is provided on the front surface of the front cowl 21, and a windscreen 26 for windbreak is provided above the headlamp 48. A rider seat 31 and a pillion seat 32 are connected to the seat cowl 24 at the rear of the center console 25 at the center of the vehicle body. A tail lamp 51 and a rear fender 52 are provided at the rear portion of the seat cowl 24.

  A swing arm (not shown) is connected to the lower side of the rear part of the vehicle body so as to be swingable in the vertical direction, and a rear wheel 54 is rotatably supported at the rear end of the swing arm. A suspension 55 for buffering the rear wheel 54 is attached between the swing arm and the vehicle body frame (not shown). The swing arm is equipped with a motor 61 that is a drive source of the rear wheel 54, and the rear wheel 54 is rotationally driven by driving the motor 61.

  A gas tank 62 into which hydrogen gas as fuel is injected is provided below the center console 25, and a fuel cell 63 is provided below the pillion seat 32. The fuel cell 63 generates electric power by reacting hydrogen gas supplied from the gas tank 62 with oxygen taken from the air. As described above, the gas tank 62 and the fuel cell 63 are a reaction apparatus that reacts hydrogen gas with oxygen in the air to convert chemical energy into electric energy. The electric power generated by the fuel cell 63 drives the motor 61. In addition, a secondary battery 64 is provided below the rider seat 31 to perform power assist during acceleration and absorb regenerative power generated in the motor 61 during deceleration.

  The gas tank 62 is provided with a valve (not shown) for adjusting the pressure in the tank. By releasing the exhaust gas by opening the valve, the burden in the tank due to an abnormal increase in pressure is reduced. A fluid discharge device 7 that discharges the exhaust gas in the gas tank 62 is provided below the gas tank 62. The fluid discharge device 7 is connected to a pipe (not shown) extending from the gas tank 62, and discharges the exhaust gas downward when the valve is opened when the pressure in the gas tank 62 increases abnormally.

  The fluid discharge device will be described in detail with reference to FIGS. FIG. 2 is a perspective view of the fluid discharge device according to the present embodiment. FIG. 3 is a cross-sectional perspective view of the fluid discharge device according to the present embodiment. 2A is a perspective view of the fluid discharge device, FIG. 2B is a perspective view of the fluid discharge device as viewed from below, and FIG. 2C is a perspective view of the fluid discharge device with the first discharge flow path exposed. 3A is a cross-sectional perspective view of the fluid discharge device, and FIG. 3B is a cross-sectional perspective view in which the main body is omitted from FIG. 3A.

  As shown in FIGS. 2 and 3, the fluid discharge device 7 is connected to the tip of a discharge pipe (not shown) extending from the gas tank 62, and is discharged from the gas tank 62 when the pressure in the gas tank 62 rises abnormally. The exhaust gas is discharged toward the ground. In the fluid discharge device 7, a rotating portion 72 is rotatably supported by a main body portion 71 connected to a discharge pipe, and a contact portion 73 that holds the rotating portion 72 in a predetermined direction is fixed to the main body portion 71. Yes. Further, the main body 71 houses a cap 74 that is opened and closed when exhaust gas from the gas tank 62 is exhausted. A first discharge channel 721 that changes the discharge path in accordance with the direction of the rotation unit 72 is formed in the rotation unit 72. In the contact portion 73, a second discharge channel 731 that is continuous with the first discharge channel 721 is formed by holding the rotating unit 72 in a predetermined direction.

  The main body 71 is formed in a cylindrical shape, and a through hole 711 is provided on the central axis so as to form a part of the discharge channel. The through hole 711 extends in the radial direction at the middle portion to form an accommodation space 712 for the cap 74. A cap 74 is accommodated in the accommodation space 712 so that the through hole 711 can be opened and closed according to the pressure of the exhaust gas. The upper surface of the accommodation space 712 is formed by a ring-shaped magnet 75 that attracts the cap 74. The lower surface of the accommodation space 712 is formed by a bottom wall portion 713 that rotatably supports the rotating portion 72, and a guide hole 714 that guides a leg portion 742 of the cap 74 described later (see FIG. 4). ) Is provided. Further, an engaging groove 715 is formed on the outer peripheral surface of the main body 71 so that the rotating portion 72 can be supported by the bottom wall portion 713.

  The rotating part 72 is formed of a magnetic material in a substantially cylindrical shape, and is provided with a first discharge channel 721 that is continuous with the through hole 711 of the main body part 71. On the upper surface of the rotating part 72, an engaging part 722 having an inverted L shape in cross section is formed over the entire circumference so as to engage with the engaging groove 715 of the main body part 71. The tip portion of the engagement portion 722 that protrudes inward enters the engagement groove 715 of the main body portion 71, and the bottom wall portion 713 of the main body portion 71 enters the recess of the engagement portion 722, so that The rotating part 72 is rotatably engaged. Further, an engagement hole 723 into which the tip of the leg portion 742 of the cap 74 is inserted through the guide hole 714 of the main body portion 71 is formed on the upper surface of the rotating portion 72 (see FIG. 3B). The engagement hole 723 is formed by dividing a ring-shaped groove into a plurality of rooms by a plurality of partition walls.

  A protrusion 724 that protrudes downward from a part of the outer peripheral portion is formed on the lower surface of the rotating portion 72. The rotating portion 72 has a weight bias around the rotation axis by the protrusion 724. For this reason, when the posture of the motorcycle 1 changes, the rotating portion 72 rotates around the rotation axis due to the weight deviation, and the weighted protruding portion 724 is positioned at a low position. The first discharge channel 721 of the rotating unit 72 is formed by a vertical hole 725 provided on the rotation axis of the rotating unit 72 and a horizontal hole 726 that extends horizontally from the lower end of the vertical hole 725 toward the protrusion 724. The first discharge flow path 721 switches the discharge path by changing the direction of the horizontal hole 726 by the rotation of the rotating unit 72.

  The contact portion 73 is formed in a long shape along the outer peripheral surfaces of the main body portion 71 and the rotating portion 72, and forms a second discharge flow path 731 by contacting the protrusion 724 of the rotating portion 72. The contact portion 73 has an inner surface 732 on a circular arc along the outer peripheral surface of the rotating portion 72 and allows the rotating portion 72 to rotate. The inner surface 732 of the contact portion 73 and the outer surface 727 of the protrusion 724 that contacts the inner surface 732 are mating surfaces that form the second discharge channel 731. A circular groove 733 is formed on the inner surface 732 of the contact portion 73 downward from a position corresponding to the horizontal hole 726 of the rotating portion 72. 728 is formed. When the inner surface 732 of the contact portion 73 and the outer surface 727 of the projection 724 are combined, a second discharge channel 731 is formed on the mating surface by the circular grooves 733 and 728.

  In addition, a magnet 76 that holds the protruding portion 724 is provided on the inner surface 732 of the contact portion 73. By the projection 724 formed of a magnetic material being attracted by the magnetic force of the magnet 76, the rotating portion 72 is held in a predetermined direction. For this reason, unnecessary rotation of the rotating portion 72 is suppressed by the magnetic force of the magnet 76, and switching of the discharge direction of the exhaust gas due to vibration or the like is prevented. Therefore, when the motorcycle 1 is in the normal posture, the second discharge channel 731 can be continuously maintained with a simple configuration without requiring a complicated structure.

  The cap 74 is made of a magnetic material, and includes a disc-shaped cap main body 741 and a plurality of (four in this embodiment) leg portions 742 extending downward from the outer periphery of the cap main body 741. Yes. The cap body 741 has a larger diameter than the through hole 711 and a smaller diameter than the accommodation space 712. The leg portion 742 is formed so that the cross-sectional area becomes smaller toward the lower end. When the exhaust gas is not discharged from the gas tank 62, the cap 74 is held on the lower surface of the magnet 75, and the accommodation space 712 and the through hole 711 are blocked by the cap body 741. When exhaust gas is discharged from the gas tank 62, the cap 74 is separated from the lower surface of the magnet 75 against the magnetic force of the magnet 75, and the accommodation space 712 and the through hole 711 are communicated with each other.

  Thus, the cap 74 is biased in the closing direction by a force weaker than the predetermined pressure of the exhaust gas by the magnetic force of the magnet 75, and the exhaust gas is discharged when the internal pressure of the gas tank 62 rises abnormally. Configured to be opened only. When the cap 74 is opened, the plurality of leg portions 742 are inserted into the engagement holes 723 of the rotating portion 72 through the guide holes 714 (see FIG. 4). For this reason, during the discharge of the exhaust gas, the rotation of the rotating portion 72 relative to the main body portion 71 is regulated via the plurality of leg portions 742. When the internal pressure of the gas tank 62 returns to normal and the discharge of the exhaust gas is stopped, the cap 74 is attracted to the magnet 75 and the leg portion 742 is pulled out from the engagement hole 723, and the rotation restriction of the rotating portion 72 is released. .

  2A and 2B, the fluid discharge device 7 configured in this way is configured to pass through the first discharge flow path 721 when the protrusion 724 of the rotating portion 72 is in contact with the contact portion 73. The exhaust gas is discharged to the outside from the two discharge flow paths 731. That is, the exhaust gas is discharged toward the rotation axis direction of the rotating unit 72. On the other hand, as shown in FIG. 2C, when the protrusion 724 of the rotating portion 72 is separated from the contact portion 73, the first discharge channel 721 is exposed to the outside, and from the first discharge channel 721. The exhaust gas is discharged immediately. That is, the exhaust gas is discharged toward the radial direction of the rotating portion 72. In this manner, the fluid discharge device 7 switches the discharge direction of the exhaust gas by switching the discharge path by the first and second discharge flow paths 721 and 731.

  With reference to FIG. 4, the opening / closing operation | movement of the cap in a fluid discharge apparatus is demonstrated in detail. FIG. 4 is an explanatory diagram of the opening / closing operation of the cap according to the present embodiment. FIG. 4A shows a state in which the cap is closed, and FIG. 4B shows a state in which the cap is opened. In FIG. 4, the opening / closing operation of the cap when the motorcycle is in the normal posture will be described.

  As shown in FIG. 4A, when the internal pressure of the gas tank 62 is normal and the exhaust gas is not discharged, the cap 74 accommodated in the main body 71 is held on the lower surface of the magnet 75 by a magnetic force. The discharge path is blocked by closing the through hole 711 by the cap 74. Therefore, it is possible to prevent foreign matters from entering the gas tank 62 from the outside.

  As shown in FIG. 4B, when the internal pressure of the gas tank 62 abnormally increases and the exhaust gas is discharged, the pressure of the exhaust gas is stronger than the magnetic force of the magnet 75, and the cap 74 is released from the lower surface of the magnet 75. When the cap 74 is pushed down against the magnetic force of the magnet 75, the leg portion 742 of the cap 74 is inserted into the engagement hole 723 of the rotating portion 72 through the guide hole 714. Thereby, rotation of the rotation part 72 with respect to the main-body part 71 is controlled, and a discharge flow path does not switch during discharge | emission of exhaust gas. Thus, the magnet 75 urges the cap 74 in the closing direction with a force weaker than the pressure of the exhaust gas.

  At this time, the cap main body 741 is supported in a floating state by the plurality of leg portions 742 in the accommodation space 712 in the rotating portion 72. When the exhaust gas flows into the through hole 711, the exhaust gas spreads in the gap between the cap body 741 and the magnet 75, wraps around the side surface of the cap body 741, and the exhaust gas enters the back side of the cap body 741. The exhaust gas enters the first discharge flow path 721 from the storage space 712, flows into the second discharge flow path 731 through the vertical hole 725 and the horizontal hole 726 of the first discharge flow path 721, and enters the second discharge flow path 731. 731 is discharged downward.

  When the exhaust gas is sufficiently discharged and the discharge of the exhaust gas is stopped, the cap 74 is attracted to the lower surface of the magnet 75 by the magnetic force of the magnet 75. When the cap 74 is pulled up by the magnetic force of the magnet 75, the leg portion 742 of the cap 74 is pulled out from the engagement hole 723 of the rotating portion 72, and the rotation restriction of the rotating portion 72 with respect to the main body portion 71 is released. In this manner, since the opening and closing of the cap 74 is controlled by the magnetic force of the magnet 75, the opening and closing of the cap 74 can be switched with a simple configuration without the need for parts such as a spring. In addition, there is no part on the exhaust flow path, and the exhaust of exhaust gas is not hindered by the part.

  Hereinafter, with reference to FIG. 5, the discharge path switching operation by the fluid discharge device according to the present embodiment will be described in detail. FIG. 5 is an explanatory diagram of a discharge path switching operation by the fluid discharge device according to the present embodiment. 5A shows a state in which the motorcycle is in a normal posture, FIG. 5B shows a state in which the motorcycle is in a rollover posture, and FIG. 5C shows a state in which the motorcycle is in an inclined posture.

  As shown in FIG. 5A, the fluid discharge device 7 is attached to the motorcycle 1 in a state in which the rotation shaft of the rotating portion 72 is inclined so that the contact portion 73 is on the lower side. In this case, the rotating portion 72 is directed in a predetermined direction in which the protruding portion 724 and the contact portion 73 come into contact with each other due to the weight of the protruding portion 724, and the protruding portion 724 is held by the magnet 76 provided in the contact portion 73 in this state. Is done. As described above, the protrusion 724 has a holding force that tries to maintain the contact state with the contact portion 73 by gravity and magnetic force. Therefore, even if the protrusion 724 is displaced from the contact position, the protrusion 724 is likely to return to the original contact position due to the weight deviation of the rotating portion 72. For this reason, it is prevented that the discharge direction of the exhaust gas is switched due to vibration or the like.

  When the motorcycle 1 is in the normal posture, since the projection 724 is held by the contact portion 73, a discharge path is formed by the first discharge flow path 721 and the second discharge flow path 731. At this time, the first discharge channel 721 has the discharge port directed in a substantially horizontal direction, and the second discharge channel 731 has the discharge port directed to the ground. For this reason, when the internal pressure of the gas tank 62 rises abnormally, the exhaust gas flows from the through hole 711 into the first discharge flow path 721 and passes through the first discharge flow path 721 from the second discharge flow path 731 toward the ground. Exhaust gas is discharged.

  As shown in FIG. 5B, when the motorcycle 1 is in a rollover posture, the rotation shaft of the rotating unit 72 is also turned sideways. Since the rotation part 72 has a weight biased by the protrusion 724 around the rotation axis, the rotation part 72 generates a rotational force around the rotation axis. The protrusion 724 is held by the magnet 76 of the contact portion 73, but the holding force (magnetic force) of the magnet 76 is suppressed to such an extent that the rotation of the rotating portion 72 is not hindered. Therefore, the rotating portion 72 rotates around the rotation axis, and the weighted protruding portion 724 is positioned at a low position. The second discharge flow path 731 is not formed by the protrusion 724 separating from the contact portion 73, and a discharge path is formed by the first discharge flow path 721.

  At this time, the first discharge channel 721 is exposed to the outside when the protrusion 724 is separated from the contact portion 73. In addition, the first discharge channel 721 has the discharge port directed to the ground by rotating the rotating unit 72 so that the protrusion 724 is positioned at a low position. For this reason, when the internal pressure of the gas tank 62 rises abnormally, the exhaust gas flows from the through hole 711 into the first exhaust channel 721 and is exhausted from the first exhaust channel 721 toward the ground.

  As shown in FIG. 5C, when the motorcycle 1 is in an inclined posture, the rotation axis of the rotating unit 72 is also inclined obliquely. A rotational force around the rotational axis is generated in the rotating unit 72 due to the bias in weight. Even in this case, since the holding force (magnetic force) of the magnet 76 is suppressed to such an extent that the rotation of the rotating portion 72 is not hindered, the rotating portion 72 rotates around the rotation axis and the weighted protrusion 724 is low. Positioned on. The second discharge flow path 731 is not formed by the protrusion 724 separating from the contact portion 73, and a discharge path is formed by the first discharge flow path 721.

  At this time, the first discharge channel 721 is exposed to the outside when the protrusion 724 is separated from the contact portion 73. In addition, the first discharge channel 721 has the discharge port directed obliquely downward toward the ground by rotating the rotating unit 72 so that the protrusion 724 is positioned at a low position. For this reason, when the internal pressure of the gas tank 62 rises abnormally, the exhaust gas flows from the through hole 711 into the first exhaust passage 721, and the exhaust gas is discharged obliquely downward from the first exhaust passage 721 toward the ground. The

  As described above, according to the fluid discharge device 7 according to the present embodiment, when the motorcycle 1 is in the normal posture, the rotating portion 72 is maintained in a predetermined direction, so that the protruding portion 724 and the contact portion 73 are maintained. As a result, a second discharge channel 731 is formed. For this reason, the exhaust gas is discharged downward from the second discharge channel 731 through the first discharge channel 721. On the other hand, when the posture of the motorcycle 1 is changed from the normal posture to the horizontal posture, the weight of the rotating portion 72 is biased toward the protruding portion 724 around the rotating shaft. The first discharge channel 721 is directed downward. Further, the protrusion 724 is separated from the contact portion 73 that forms the second discharge flow path 731 by the rotation of the rotation section 72, so that the first discharge flow path 721 is opened to the outside. For this reason, the exhaust gas is discharged directly downward from the first discharge flow path 721. In this way, the exhaust gas discharge flow path is switched according to the attitude of the motorcycle 1, and the exhaust gas can always be discharged downward regardless of the attitude of the motorcycle 1.

  The present invention is not limited to the above embodiments, and can be implemented with various modifications. In the above-described embodiment, the size, shape, and the like illustrated in the accompanying drawings are not limited to this, and can be appropriately changed within a range in which the effect of the present invention is exhibited. In addition, various modifications can be made without departing from the scope of the object of the present invention.

  For example, in the present embodiment, the fluid discharge device 7 is applied to the motorcycle 1 driven by a fuel cell, but is not limited to this configuration. The fluid discharge device 7 is not limited to the motorcycle 1 and may be applied to any vehicle as long as the vehicle uses high-pressure gas. Moreover, the fluid discharge apparatus 7 is not limited to the structure mounted in a vehicle, For example, you may mount in a domestic water heater.

  Further, in the present embodiment, the reaction device is configured by the gas tank 62 filled with hydrogen gas and the fuel cell 63, but is not limited to this configuration. The reaction apparatus only needs to use a high-pressure fluid, and may use a liquid.

  In the present embodiment, the cap 74 is held by the magnet 75, but is not limited to this configuration. The cap 74 may be urged in the closing direction by a force weaker than the pressure of the exhaust gas, and the cap 74 may be urged in the closing direction by a spring, an electromagnet, or the like.

  In the present embodiment, the contact portion 73 is configured to hold the protruding portion 724 by the magnetic force of the magnet 76, but is not limited to this configuration. The contact part 73 should just have the holding power of the grade which does not prevent rotation of the rotation part 72, for example, may hold | maintain with magnetic force and frictional force, such as an electromagnet.

  Moreover, in this Embodiment, although the fluid discharge apparatus 7 was set as the structure attached so that the contact part 73 may face the back of the advancing direction of the motorcycle 1, it is not limited to this structure. The contact portion 73 may be attached so as to face forward in the traveling direction of the motorcycle 1. In this case, the protrusion 724 can easily return to the contact position with respect to the contact portion 73 due to the inertial force during braking.

  As described above, the present invention has an effect that exhaust gas can always be discharged downward regardless of the attitude of the reactor, and in particular, a fluid for a motorcycle using a fuel cell as a drive source. Useful for discharge devices.

1 Motorcycle 62 Gas tank (reactor)
63 Fuel cell (reactor)
DESCRIPTION OF SYMBOLS 7 Fluid discharge | emission apparatus 71 Main-body part 72 Rotation part 721 1st discharge flow path 724 Projection part 73 Contact part 731 2nd discharge flow path 74 Cap

Claims (8)

A fluid discharge device that is provided in a reaction device that uses a high-pressure fluid and discharges a discharge fluid in the reaction device to the outside,
A main body connected to a pipe extending from the reactor;
A rotating part that is supported rotatably with respect to the main body part and has a protrusion on the outer peripheral side so as to have a weight bias around the rotation axis;
A contact portion that contacts the protrusion so that the rotating portion is in a predetermined orientation;
A first discharge flow path is formed in the rotating portion to direct the fluid discharged from the pipe toward the protrusion.
A second discharge channel that discharges the discharged fluid to the outside from the protruding direction of the projection is formed on the mating surface of the projection and the contact portion, and is connected to the first discharge channel.
The fluid discharge device according to claim 1, wherein the first discharge flow path is opened to the outside when the rotating portion receives gravity and the protrusion is separated from the contact portion.   The fluid discharge device according to claim 1, wherein the contact portion detachably holds the protrusion so that the rotating portion is in a predetermined direction.   The fluid discharge device according to claim 2, wherein the contact portion holds the protrusion by a magnetic force.   The fluid discharging apparatus according to any one of claims 1 to 3, wherein the fluid discharging apparatus is attached to the reaction apparatus by inclining the rotation shaft so that the contact portion side is on the lower side.   5. The cap according to claim 1, further comprising a cap that opens and closes the first discharge channel, wherein the cap is biased in a closing direction by a force weaker than a pressure of the discharged fluid. Fluid discharge device.   The fluid discharging apparatus according to claim 5, wherein the cap is biased in a closing direction by a magnetic force.   The fluid discharge according to claim 5 or 6, wherein the cap is urged in an opening direction by a pressure of a discharged fluid, thereby restricting relative rotation between the main body portion and the rotating portion. apparatus.   The fluid discharge device according to any one of claims 1 to 7, wherein the reaction device is provided in a motorcycle using gaseous fuel as a power source.

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