DEVICE EQUIPPED WITH A TANK

Abstract

Device equipped with a tank, comprising: the tank (22) to be filled with a fuel gas; a valve mechanism (23) provided in the tank (22); a receptacle (25) to which a nozzle (13) of a fuel gas filling device (10) can be connected; a first filling path (52), wherein an upstream end (521) of the first filling path (52) is connected to the receptacle (25); a second filling path (53), wherein a downstream end (532) of the second filling path (53) is connected to the tank (22) via the valve mechanism (23);and a storage container (30a, 30b, 30c, 30d) which hermetically connects a downstream end (522) of the first filling path (52) and an upstream end (531) of the second filling path (53) and stores foreign substances contained in the fuel gas, wherein the downstream end (522) of the first filling path (52) is positioned closer than an upper wall section (35) of the storage container (30a, 30b, 30c, 30d) to a bottom wall section (31) of the storage container (30a, 30b, 30c, 30d), and the upstream end (531) of the second filling path (53) is positioned closer than the bottom wall section (31) to the upper wall section (35).

Description

[0001] The present invention relates to a device equipped with a tank.

[0002] In a device equipped with a tank, the tank is filled with fuel gas from a fuel gas filling unit. A known fuel gas filling unit includes a container that separates moisture from the fuel gas (see, for example, publication JP 2011-149541 A).

[0003] To fill the tank with fuel gas, a nozzle on the fuel gas filling device and a receptacle on the tank-mounted unit are connected. The fuel gas is then pumped into the tank through a filling path connecting the receptacle and the tank. Foreign substances, such as water and dust, can often adhere to the nozzle and receptacle during this process. When the nozzle and receptacle are connected and the fuel gas is pumped into the tank, these foreign substances can travel along the filling path with the fuel gas and potentially become lodged in the tank's valve mechanism. For example, if dust adheres to the valve mechanism, or if water adheres to it and freezes, the valve mechanism may malfunction.Depending on the configuration of the valve mechanism, the foreign substances that have adhered to the valve mechanism can be introduced into the tank, or can move to the fuel cell along with the fuel gas.

[0004] The object of the present invention is to provide a device equipped with a tank that prevents foreign substances from adhering to a valve mechanism provided in the tank.

[0005] The problem described above is solved by a device equipped with a tank, comprising: the tank to be filled with a fuel gas; a valve mechanism provided in the tank; a receptacle to which a nozzle of a fuel gas filling device can be connected; a first filling path, wherein an upstream end of the first filling path is connected to the receptacle; a second filling path, wherein a downstream end of the second filling path is connected to the tank by the valve mechanism; and a storage container, which hermetically connects between a downstream end of the first filling path and an upstream end of the second filling path and stores foreign substances contained in the fuel gas, wherein the storage container is positioned vertically above the downstream end of the first filling path.With the configuration described above, the fuel gas is filled into the tank via the storage container in such a way that the foreign matter is stored in the storage container without reaching the valve mechanism. Furthermore, the upstream end of the second filling path is positioned vertically above the downstream end of the first filling path, so that the foreign matter stored in the storage container is spaced away from the upstream end of the second filling path. This prevents the foreign matter from adhering to the upstream end of the second filling path and reaching the valve mechanism. Therefore, the adhesion of the foreign matter to the valve mechanism is prevented.

[0006] A release mechanism that releases the foreign substances stored in the storage container to the outside may be present.

[0007] The length of the first fill path can be smaller than that of the second fill path.

[0008] A direction of an axis of an opening of the downstream end of the first filling path can intersect a vertical direction, and an angle of a vertically upper side between the direction of the axis of the opening of the downstream end of the first filling path and an inner surface of a wall section of the storage container that intersects the axis can be equal to or greater than 90 degrees and less than 180 degrees.

[0009] An opening at the upstream end of the second filling path can be directed in a horizontal direction or vertically upwards with respect to the horizontal direction.

[0010] The storage tank may have a blocking wall section, and the blocking wall section may project inwards on an inner surface of the storage tank, may be positioned vertically above a section located on a vertically lowest side of the storage tank, and may be positioned vertically below the upstream end of the second filling path.

[0011] A bypass path that bypasses the storage tank and is connected to the first and second filling paths, a switching mechanism that toggles between a connected state in which the first and second filling paths are connected to each other through the storage tank without the bypass path, and a bypass state in which the first and second filling paths are connected to each other through the bypass path without the storage tank, and a switching control configured to control the switching mechanism to be in a connected state until a predetermined period has elapsed since the time the fuel gas began filling the tank, and configured to control the switching mechanism to be in the bypass state until the fuel gas filling is complete after the predetermined period has elapsed, may be present.

[0012] The switching mechanism can be a three-way valve provided between the first or second filling path and the bypass path.

[0013] The dispensing mechanism may have: a dispensing path connected to the storage container; an electrically controlled valve that opens and closes the dispensing path; a determiner (determining device) configured to determine if the internal pressure of at least one of the first filling path, the second filling path, and the storage container is lower than a predetermined value; and a dispensing control configured to temporarily open the electrically controlled valve when it is determined that the internal pressure is lower than the predetermined value.

[0014] A pressure sensor that detects the internal pressure may be present, and the determiner may be configured to determine whether the internal pressure is lower than the predetermined value, based on a detection value from the pressure sensor.

[0015] According to the present invention, it is possible to provide a device equipped with a tank that prevents foreign substances from adhering to a valve mechanism provided in the tank. List of characters Fig. Figure 1 is an explanatory view of a gas filling system; Fig. 2 is an explanatory view of a petrol station and a vehicle; Fig. 3A is an external perspective view of a storage container, and Fig. 3B is a view that shows an internal structure of the storage container; Fig. 4A to Fig. 4C are explanatory views of storage containers according to variations; Fig. 5 is an explanatory view of a system according to one variation; Fig. 6 is a flowchart that illustrates an example of a switching control system; Fig. 7 is a timing diagram that illustrates an example of switching control; Fig. Figure 8 is an explanatory view of a system according to one variation; Fig. 9 is a flowchart that illustrates an example of a tax control system; and Fig. Figure 10 is a time diagram that illustrates an example of delivery control.

[0016] The Fig. 1 is the explanatory view of a gas filling system (gas filling system) 1 (hereinafter simply referred to as a system) 1 (designated). The system 1 has: a vehicle 20 , which is achieved through a fuel cell 21, which generates electrical power and uses a fuel gas, the generated electrical power is driven; and a filling station 10 , which has a tank 22 of the vehicle 20 It is filled with a fuel gas. Hydrogen gas is used as the fuel gas. Fig. 2 is an explanatory view of the gas station 10 and the vehicle 20 .

[0017] First, the gas station 10 described. The gas station 10 has a pressure accumulator 3 , a cooler 5 , a distributor 11 , a filling hose 12 , a nozzle 13 , a pressure sensor 14 , a communicator (communication device) 15 , a control system 16 , and a flow rate sensor 17 The storage 3It stores hydrogen gas, which is pressurized to a predetermined pressure by a compressor and supplied from a hydrogen cartridge (hydrogen curl, not shown). The cooler 5 does that cool the storage 3 supplied hydrogen gas. The distributor 11 The hydrogen gas is carried from the cooler 5 to the filling hose 12 to, which is connected to the distributor 11 is connected. The distributor 11 is equipped with an operating panel 11a to receive a setting for a desired target fill quantity of the tank 22 of the vehicle 20 The hydrogen gas to be filled is provided by a user. The nozzle 13 is at one end of the filling hose 12 attached. The pressure sensor 14 and the flow rate sensor 17 are near the nozzle 13provided, and accordingly detect the pressure and flow rate of the fluid passing through the nozzle. 13 passing hydrogen gas. The pressure sensor 14 and the flow rate sensor 17 can within the distribution box 11 must be provided as long as the pressure sensor 14 and the flow rate sensor 17 according to the pressure and flow rate within a path between the distributor 11 and the nozzle 13 capture. The communicator 15 will be described later. The control system 16 It is a microcomputer with a central processing unit (CPU), read-only memory (ROM), main memory (RAM), and storage. The control 16 is electrically connected to the cooler 5 , the pressure sensor 14 , the communicator 15 and the flow rate sensor 17 connected, and controls the entire operation of the gas station 10 .

[0018] Next, the vehicle will 20 described. The vehicle 20 has the fuel cell 21 , the tank 22 , a recording 25 , a communicator (communication device) 26 , a control system 28 , a storage container 30 , a temperature sensor 41 , a pressure sensor 42 , a flow rate sensor 43 , a first fill path 52 , a second fill path 53 , a supply path 56 , an engine M , front wheels FW and rear wheels RW The fuel cell 21 generated from an supplied oxygen gas and a gas from the tank 22 The supplied hydrogen gas provides electrical power. The tank 22 It can be filled with high-pressure hydrogen gas. The first filling path 52 and the second fill path 53 lead from the gas station 10hydrogen gas supplied to the tank 22 The second fill path 52 is downstream of the first filling path 52 Positioned lying down. Regarding the first fill path. 52 is an upstream end 521 with the recording 25 in connection, and a downstream end 522 is with the storage container 30 in connection. Regarding the second fill path. 53 is an upstream end 531 with the storage container 30 in connection, and a downstream end 532 is equipped with a valve mechanism 23 of the tank described later 22 in connection. The storage container 30 The supply path will be described later. 56 is connected to the valve mechanism 23 of the tank 22 in connection and carries the hydrogen gas from the tank 22 to the fuel cell 21to. The recording 25 is with the upstream end 521 of the first fill path 52 in conjunction, as described above, and is a section with which the nozzle 13 is connected to the time at which the hydrogen gas enters the tank 22 is filled. The recording 25 is located, for example, in a lid compartment of the vehicle 20 Provided. The communicator 26 and the control 28 will be described later. The engine M for driving the vehicle 20 is powered by the fuel cell 21 supplied electrical power, and the driving force of the motor M to at least one pair of front wheels FW and the rear wheels RW transmitted. The temperature sensor 41 It detects a gas temperature that corresponds to the temperature of the hydrogen gas inside the tank. 22 is. The pressure sensor42 and the flow rate sensor 43 are in the second fill path 53 provided, and accordingly record the pressure and flow rate of the flow through the second filling path 53 hydrogen gas passing through. At least one from the pressure sensor. 42 and the flow rate sensor 43 can in the first fill path 52 or in the storage container 30 be provided. Furthermore, it is necessary in a case where at least one of the pressure sensor 42 and the flow rate sensor 43 in the storage container 30 are provided, this is desired in the storage container 30 provided in a position where it is unlikely that later described and contained in the storage container 30 Stored foreign substances adhere to it.

[0019] The tank 22 has a main body 221 , a cover 222, located at one end of the main body 221 in its longitudinal direction, and the valve mechanism 23 , which is located at the opening of the cover 222 is provided. The valve mechanism 23 switches between a state in which the tank 22 is filled with hydrogen gas, and in a state in which the hydrogen gas is released from the tank 22 to the fuel cell 21 is released in order to. In particular, the valve mechanism 23 a shut-off valve 233 and an opening / closing valve 234 The valve mechanism 23 is provided with a path that runs between the downstream end 532 of the second fill path 53 and the inside of the tank 22 connects, and the shut-off valve 233 is provided on this path. The shut-off valve 233 This allows the hydrogen gas to be transferred from the second filling path. 53to the tank 22 flows, but prevents the hydrogen gas from leaving the tank 22 to the second fill path 53 flows. Furthermore, the valve mechanism 23 with a path provided that runs between the interior of the tank 22 and the supply path 56 connects, and the opening-closing valve 234 is provided on this path. In response to the opening and closing of the open / close valve. 234 This will be done with high pressure in the tank 22 stored hydrogen gas through the supply path 56 to the fuel cell 21 supplied. A temperature in the tank 22 is determined by the temperature sensor 41 recorded.

[0020] The control 28 is a microcomputer with a CPU , a ROM , a RAM and a memory, and controls the entire operation of the vehicle based on input sensor signals. 20 The control 28 is electrically connected to the communicator 26 , the temperature sensor 41 , the pressure sensor 42 , the flow rate sensor 43 and the opening-closing valve 234 tied together.

[0021] The control 16 the gas station 10 and the control 28 of the vehicle 20 are able to communicate via the communicators 15 and 26 To communicate predetermined information. The communicators 15 and 26 are capable of establishing either a radio or an infrared connection. The control system 16 receives from the control system 28 of the vehicle 20 about the communicators 15 and 26Information such as pressure and gas temperature in the tank 22 Furthermore, the control 16 a piece of information, such as one in the tank 22 Fillable quantity and permissible tank pressure 22 , received. The control 16 controls every device in the gas station 10 based on such information provided by the vehicle 20 was obtained, and information such as a target fill quantity of hydrogen gas, which is determined by the actuating panel. 11a of the distributor 11 was received, and controls a filling rate and a filling quantity of hydrogen gas to the vehicle. 20 The communicators 15 and 26 are correspondingly close to the nozzle 13 and the recording 25 provided so that communication with the interconnected nozzles is possible 13 and recording 25 is obtained.

[0022] Next, the gas station will be... 10 described in detail. The gas station 10 This is an example of a fuel gas filling device that controls the filling rate of hydrogen gas into the tank. 22 reduced before the amount of hydrogen gas in the tank 22 The target fill quantity has been reached, and the filling of the hydrogen gas into the tank has begun. 22 completed. In particular, the control reduces 16 the gas station 10 further gradually or continuously increasing the flow rate of the hydrogen gas from the distributor 11 to the tank 22 , if an actual fill quantity is put into the tank 22 The fill quantity is closer to the target fill quantity at the start of the filling process.

[0023] Next, the storage container will be 30 described. The Fig. 3A is an external perspective view of the storage container. 30 . The Fig. 3B is a view showing the internal structure of the storage container. 30 represents the storage container 30 has a floor wall section 31 , a side wall section 33 and an upper wall section 35 The side wall section 33 It has a beveled shape such that its inner diameter gradually decreases from the upper wall section. 35 to the section of the floor wall 31 reduced, but not limited to that. In the storage container 30 is the floor wall section 31 vertically below the side wall section 33 and the upper wall section 35 positioned. The first fill path 52 has: a horizontal section 523 , which extends essentially horizontally from the upstream end 521 extends; and a vertical section 524 , which extends continuously downstream from the horizontal section 523extending downwards in a substantially vertical direction. Similarly, the second fill path... 53 : a vertical section 533 , which extends essentially vertically from the upstream end 531 extends upwards; and a horizontal section 534 , which continuously extends from the vertical section 533 extends downstream in a generally horizontal direction. The vertical section 524 and the vertical section 533 penetrate through corresponding boreholes located in the upper wall section 35 are formed. A gap between the vertical section 524 and the bore through which the vertical section 524 Any penetration is hermetically sealed by a sealing element, such as an O-ring. Similarly, a gap between the vertical section... 533 and the bore through which the vertical section 533penetrates, hermetically sealed. The floor-wall section 31 is positioned in such a way that an opening is created on the lower side of the side wall section. 33 It is hermetically sealed. Therefore, the first filling path 52 and the second fill path 53 hermetically sealed with the storage container 30 in connection. Additionally, the floor wall section 31 with a lower end of the side wall section 33 in thread engagement, and the bottom wall section 31 is from the side wall section 33 by rotating the section of the floor wall 31 Removable. Furthermore, the configuration is not limited to the configuration described above, as long as the floor wall section 31 is able to the side wall section 33 to open and close. For example, a hinge mechanism can open the floor-to-wall section. 31 with the side wall section 33be connected in such a way that the side wall section 33 It can be opened and closed. Furthermore, the gap between the vertical section can be adjusted. 524 and the bore through which the vertical section 524 penetrates, and the gap between the vertical section 533 and the bore through which the vertical section 533 penetrates, for example by welding or similar methods, and must be hermetically sealed.

[0024] During the filling of the tank 22 The hydrogen gas is temporarily diverted from the downstream end. 522 of the first fill path 52 into the storage container, and then the hydrogen gas is transferred to the upstream end. 531 of the second fill path 53 inside the storage container 30 introduced, which filled the tank 22 fills with hydrogen gas. This includes filling the tank.22 with the hydrogen gas, as described above, the nozzle 13 and the recording 25 connected to each other. Since the nozzle opening end surfaces 13 and the recording 25 Containers exposed to outside air often have foreign substances adhering to them, such as water and dust. When hydrogen gas is introduced in such a case, these foreign substances move along with the hydrogen gas through the first filling path. 52 Since the downstream end 522 and the upstream end 531 Because they are spaced apart, the foreign substances are carried away from the downstream end. 522 delivered and then onto the upper surface of the floor wall section 31 inside the storage container 30 stored. Therefore, the passage of foreign substances from the upstream end is suppressed. 531 in the second fill path 53penetrate and attach themselves to the valve mechanism 23 of the tank 22 They adhere to the gas. Furthermore, the specific gravity of foreign substances, such as moisture, is greater than that of the fuel gas. Therefore, they are drawn from the downstream end. 522 of the first fill path 52 into the storage container 30 foreign substances released near the section of the bottom wall 31 stored, and only the fuel gas is inside the storage container. 30 around the upstream end 531 of the second fill path 53 present around. Thus, only the fuel gas within the storage container is affected. 30 to the upstream end 531 of the second fill path 53 introduced, and the fuel gas, from which the foreign substances have been removed, flows into the tank. 22 Furthermore, the storage container 30stored foreign substances by removing the section of the bottom wall 31 from the side wall section 33 to be released to the outside. The floor wall section 31 is an example of a dispensing mechanism for dispensing into the storage container 30 stored foreign substances to the outside.

[0025] Although the downstream end 522 of the first fill path 52 and the upstream end 531 of the second fill path 53 this relates to the section of the floor wall 31 are directed, the upstream end is 531 compared to the downstream end 522 vertically from the floor wall section 31 spaced apart. In particular, the downstream end is 522 closer than the upper wall section 35 on the section of the floor wall 31 positioned, and the upstream end 531is closer than the section of the bottom wall 31 on the upper section of the wall 35 positioned. Even if foreign substances are on the upper surface of the floor wall section. 31 are stored, for example by the flowing hydrogen gas within the storage container 30 The process of being blown away is therefore suppressed so that the foreign substances are removed from the upstream end. 531 in the second fill path 53 penetrate. Furthermore, the downstream end 522 and the upstream end 531 They are spaced apart from each other in the vertical and horizontal directions. Therefore, for example, the effect of the downstream end is suppressed. 522 The released foreign substances are transferred to the upstream end. 531 adhere.

[0026] Although the storage container 30 stored foreign substances by removing the section of the bottom wall31 from the side wall section 33 Maintenance is required before foreign substances can be released to the outside, as described above. 30 the downstream end 522 cover. This includes the inner diameter of the side wall section. 33 formed, at least larger than any inner diameter of the first filling path 52 and the second fill path 53 inside the storage container 30 to be. This ensures an internal volume of a space that extends vertically below the downstream end. 522 of the first fill path 52 inside the storage container 30 is positioned. It is therefore possible to store more foreign materials in the storage container. 30 to store without the downstream end 522 of the first fill path 52 to cover, and to reduce maintenance frequency.

[0027] Length of the first fill path 52 is less than the length of the second fill path 53 In other words, the storage container 30 provided in such a position that such a ratio between the lengths is established. For example, in a case different from the present embodiment, it is possible in which the length of the first filling path 52 larger than that of the second fill path 53 The following problems occur. The hydrogen gas, pre-cooled by the cooler, is fed into the tank. 22 filled. Immediately after the start of the filling (pouring) of the hydrogen gas, an uncooled hydrogen gas, which is located on the downstream side of the cooler, is introduced. 5 initially lies in the tank 22 filled. Therefore, the temperature within the first filling path is 52The temperature is relatively high immediately after the exhaust gas filling process begins. After a certain period of time has elapsed, the gas flows through the cooler. 5 hydrogen gas passing through into the first filling path 52 , and then the temperature drops in the first filling path 52 below freezing temperature. If, for example, water enters the first filling path in this case. 52 if it penetrates, it could do so through the cooler 5 The cooled hydrogen gas enters the first filling path before the water from the downstream end. 522 is released. Thus, the water could be within the first filling path. 52 freezing, and this could cause a pressure loss in the first filling path. 52 increase the flow of hydrogen gas. In the present embodiment, the length of the first filling path is 52 smaller than the length of the second fill path 53, as described above, so that the first fill path 52 Water entering the storage tank early 30 can be stored, thereby suppressing the water in the first filling path. 52 freezes, as described above. Taking into account the point described above, the length of the first fill path is 52 preferably small.

[0028] Next, a number of variations are described. In the description of the variations, the same components are designated by the same reference symbols, and repetition of the description is omitted. Fig. 4A to Fig. 4C are explanatory views of storage containers. 30a , 30b or 30c according to the variations. The Fig. 4A to Fig. 4C correspond to the Fig. 3B. First, the storage container 30adescribed. Inside the storage container 30a is a blocking section of wall 36 provided to be positioned at a predetermined distance from the upstream end 531 to be directed. The blocking section of wall 36 protrudes within the inner side surface of the side wall section 33 of the storage container 30a in front, is vertically above the inner surface of the floor wall section 31 positioned on the bottom vertical side inside the storage container 30a is positioned, and is vertically below the upstream end. 531 of the second fill path 53 positioned. Since the blocking wall section 36 between the upstream end 531 and the section of the floor wall 31 The foreign substances adhere even when positioned at the downstream end. 522emitted hydrogen gas that forms on the upper surface of the bottom wall section 31 blows away stored foreign substances, to the blocking wall section 36 on, but it is suppressed that these are located on the inner side of the upstream end. 531 adhere. Accordingly, the passage of foreign substances from the upstream end is suppressed. 531 in the second fill path 53 penetrate. Additionally, the blocking wall section 36 provided in a position that is horizontally separated from the vertical section 524 of the first fill path 52 is spaced apart to avoid contact. The blocking wall section 36 It has the shape of a thin disc. The shape, size, and material of the blocking wall section 36are not limited, but the blocking wall section is preferably small to suppress an increase in the pressure loss of the hydrogen gas.

[0029] Next, the storage container will be 30b described. Regarding the storage container 30b is an upper wall section 35a provided with a bore through which only a first filling path 52a penetrates, and a side wall section 33a is provided with a bore that allows for a second filling path 53a is connected. In addition to the vertical section 524 has the first fill path 52a a horizontal section 525 , which extends downstream and continuously from the vertical section 524 extending in a substantially horizontal direction. One end of the horizontal section 525 is a downstream end 522a . The Fig. 4B represents an axisA1 an opening at the downstream end 522a The direction of the axis A1 It extends in an essentially horizontal direction; in other words, it intersects the vertical direction. An angle D the vertically upper side between the direction of the axis A1 and the inner surface of the side wall section 33a of the storage container 30b , which the axis A1 The angle of intersection is equal to or greater than 90 degrees and less than 180 degrees. Therefore, most of the hydrogen gas coming from the downstream end is suppressed. 522a is released along the inner surface of the side wall section. 33a flows vertically downwards, namely towards the upper surface of the bottom wall section 31 stored foreign substances flow out. Therefore, the flow of foreign substances into the storage container is suppressed. 30are blown away, and it is suppressed that the foreign substances are carried from an upstream end. 531a in the second fill path 53 penetrate. Furthermore, the axis cuts. A1 not the section of the floor wall 31 , but the side wall section 33a In other words, the downstream end 522a not to the section of the floor wall 31 but to the side wall section 33a directed. Thus, the effect from the downstream end is suppressed. 522a The released hydrogen gas is blown directly onto the foreign materials. In the present variation, the direction of the axis is A1 not limited to the horizontal direction, but can be any direction that intersects the vertical direction. The angle D is not limited to the in Fig. The angle shown in 4B is limited. Furthermore, the inner surface of the wall section that defines the axis can be limited. A1cuts, for example, the inner surface of the floor wall section, which is inclined with respect to the horizontal direction.

[0030] Unlike the embodiment and variation described above, the second filling path 53a the vertical section 533 not the one that extends vertically, and the horizontal section 534 , which extends essentially horizontally, is connected to the side wall section 33a hermetically sealed. That's why one end of the horizontal section 534 the upstream end 531a . The Fig. 4B represents an axis A2 the opening of the upstream end 531a This represents an opening at the upstream end. 531a is horizontally oriented, and the axis A2 lies parallel to the horizontal direction. Even if the upper surface of the floor wall section is... 31stored foreign substances within the storage container 30 for example by putting pressure on the vehicle 20 The vibrations that are blown away are therefore suppressed so that the foreign substances adhere to the interior of the upstream end. 531a adhere. Additionally, the axis cuts. A2 the non-floor wall section 31 but the side wall section 33a In other words, the upstream end 531a not to the section of the floor wall 31 directed, but it is to the side wall section 33a directed. The opening of the upstream end. 531a It could also be directed horizontally or vertically upwards with reference to the horizontal direction. In this case, the migration of foreign matter to the interior of the upstream end is also still suppressed. 531a adhere.

[0031] Next, a storage container will be installed.30c described. An opening is located in an upper section of the wall. 35b of the storage container 30c formed. An upper side wall 37 , which has an essentially cylindrical shape, is formed around the opening. An upper projecting wall section 38 , which has an upper opening in the upper side wall 37 closes, is formed. A through the upper side wall 37 surrounding space and one through the side wall section 33 The surrounding space is interconnected. The upper projecting section of the wall 38 is hermetically sealed with the vertical section 524 of the first fill path 52a connected. A horizontal dimension of the upper side wall 37 is smaller than that of the side wall section 33 The side surface of the upper side wall 37 is with the horizontal section 534 a second fill path 53bconnected, namely hermetically sealed to an upstream end 531b connected. Additionally, the upper wall section has 35b a projecting section 35b1 , which is from the inner surface of the upper side wall 37 projecting inwards and vertically below the upstream end 531b is positioned. Thus, the projecting section 35b1, which is part of the upper wall section, functions. 35b is, in the same way as the blocking wall section 36 , as described above, and suppresses the passage of foreign substances to the upstream end 531b adhere.

[0032] Instead of the first fill path 52 , who in the Fig. 3A, Fig. 3B and Fig. As shown in 4A, the first fill path can be 52a be used, which is in the Fig. 4B and Fig. 4C is shown. The blocking wall section36 , who is in the Fig. As shown in 4A, it can be found in the storage containers. 30b or 30c be provided, which are in the Fig. 4B and Fig. 4C are shown. Instead of the second fill path. 53 , who in the Fig. 3A and Fig. As shown in 3B, the second fill path can be 53a to be used, which is in the Fig. 4B is shown. Instead of the upper wall section. 35 and the second fill path 53 , which are in the Fig. 3A, Fig. 3B and Fig. 4A shows the upper wall section 35b , the upper side wall 37 , the upper projecting section of the wall 38 and the second fill path 53b be used.

[0033] In the embodiments and variations described above, the storage container is arranged such that the bottom wall section lies parallel to the horizontal plane, but the present invention is not limited thereto. The bottom wall section can be arranged to be inclined within an angle of 45 degrees with respect to the horizontal plane. Furthermore, the bottom wall section can have a curved shape to be vertically recessed upwards.

[0034] Next, a system will be implemented. 1c as described in one variation. Fig. 5 is an explanatory view of the system. 1c according to one variation. A vehicle 20c It has a three-way valve. 48 and a bypass 54 The bypass 54 bypasses the storage container 30 and connects between the first fill path 52 and the second fill path 53In particular, the bypass route 54 with a section of the first filling path 52 and a section of the second filling path 53 in connection. The three-way valve 48 is between the first fill path 52 and the bypass 54 Provided. The three-way valve 48 is electrically equipped with a control system 28c connected and controlled by them. The three-way valve 48 switches between a state in which an upstream section of the first filling path 52 from the three-way valve 48 with a downstream section of the first filling path 52 from the three-way valve 48 is connected, and the first fill path 52 with the bypass path 54is not connected, and a state in which the upstream section and the downstream section described above are not connected to each other, and the upstream section is not connected to the bypass path 54 is connected in order to. The earlier state is an example of a connected state in which the first fill path 52 and the second fill path 53 together through the storage container 30 and not via the bypass 54 are connected. The latter state is an example of a bypass state, in which the first fill path 52 and the second fill path 53 together through the bypass path 54 and not through the storage container 30 are connected. The three-way valve can be used to switch between the second filling path. 53 and the bypass 54 be provided.

[0035] The control28c It executes a switching control to ensure that hydrogen gas is not lost during the filling process through the three-way valve. 48 to switch from the previously described connection state to the bypass state. The switching control is achieved by a switching controller (a changeover controller), which is functionally defined by the CPU , the ROM , the RAM and the memory of the controller 28c is obtained.

[0036] The Fig. Figure 6 is a flowchart that illustrates an example of a switching control system. This switching control is repeatedly executed at predetermined time intervals by the controller. 28c executed. First, it is determined whether the current state is the one immediately preceding the introduction of hydrogen gas, or not (step S1 ). Especially if a fuel cover of the lid box is open, or if the communicators 15 and 26Once the components are brought into a comminable state, it is determined that the current state is the state immediately preceding the point at which the hydrogen gas is introduced. If, in this step... S1 If a negative determination is made, this control ends. If in the step S1 When a confirmatory determination is made, the three-way valve switches. 48 from the bypass state to the connection state (step S2 Additionally, the bypass state is maintained except during the filling of the hydrogen gas.

[0037] Next, a decision is made as to whether or not to begin filling with hydrogen gas (step 1). S3 In particular, it is stipulated that the filling of the hydrogen gas has begun when at least one of the readings from a rise in the pressure measured by the pressure sensor is detected. 42 displayed pressure value in the second fill path 53 , an increase in the reading from the flow rate sensor43 displayed flow rate of the second filling path 53 flowing hydrogen gas and a temperature sensor 41 displayed increase in temperature inside the tank 22 is recorded. If in that step S3 If a negative determination has been made, the processing of the step will be halted. S3 executed again. If in the step S3 If a confirmatory determination has been made, it is determined whether a predetermined period tv has elapsed since the time at which it was determined that the filling of the hydrogen gas had begun, or not (step S4 The predetermined period tv is set to be shorter than the period from when the hydrogen gas was first pumped until the pumping is complete. If in the step S4 If a negative determination is made, the processing of the step will be interrupted. S4executed again. If in the step S4 When a confirmatory determination is made, the three-way valve switches. 48 from the previously described connection state to the bypass state by (step S5 ), and the switching control ends. The processing of the steps S2 until S5 This is an example of processing performed by a switching controller configured to operate the three-way valve. 48 to control being in the connected state until a predetermined period of time has elapsed since the fuel gas began entering the tank 22 to be filled, has elapsed, and is configured, the three-way valve 48 to control the system to remain in the bypass state until the fuel gas filling is complete after the predetermined period tv has elapsed.

[0038] The Fig. Figure 7 is a timing diagram that illustrates an example of switching control. Fig. 7 represents the pressure value in the second fill path. 53 This is based on the measured value of the pressure sensor. 42 and the connection state or the bypass state was calculated. If it is determined that the present state is the state immediately before the filling at that time t1 When it starts, the three-way valve switches. 48 from the bypass state to the connection state. If the filling process begins at a certain time t2 Once detected, the hydrogen gas is passed through the storage container 30 into the tank 22 The container is filled and the pressure rises sharply. This makes it possible to remove foreign substances from the storage container. 30 to store, which attach to the nozzle 13 and the recording 25 have adhered. Next, at a time t3 , after the predetermined period tv since the time t2Once the specified time has elapsed, the connection state switches to the bypass state. The bypass state is activated before the filling process is complete. Therefore, the hydrogen gas bypasses the storage tank. 30 and goes into the tank 22 The system is filled. Afterwards, the rate of pressure increase gradually decreases. The pressure then remains essentially constant, and the filling of the hydrogen gas is complete at that time. t4 complete.

[0039] In the manner described above, the hydrogen gas is passed through the storage container 30 during the early filling period into the tank 22 filled, and the hydrogen gas will be added to the tank during the subsequent filling period. 22 filled without passing through the storage container 30 to be guided. During the early filling period, the foreign substances that adhere to the nozzle can 13 and the recording 25 have adhered to the storage container30 be saved. Furthermore, since the nozzle already 13 and the recording 25 removed foreign substances in the storage container 30 are stored and hardly remember the valve mechanism at a later time. 23 The hydrogen gas bypasses the storage container by adhering to the container 30 and goes into the tank 22 filled. Therefore, during the subsequent filling period, an increase in pressure loss due to the flow of hydrogen gas through the storage tank is possible. 30 suppressed, which can also suppress an increase in the filling period due to the increase in the pressure loss of the hydrogen gas.

[0040] The Fig. Figure 8 is an explanatory view of a system 1d according to one variation. A section of the floor wall. 31d a storage container 30d in a vehicle 20d of the system 1dis not configured to open and close, which is unlike the floor wall section described above. 31 is, but a delivery path 59 is with the floor wall section 31d in connection. There is also a dispensing valve. 49 to open and close the delivery path 59 provided. In addition, the storage container 30d with a liquid level sensor 49d provided to record the amount of foreign matter in the storage container 30d are stored. The dispensing valve 49 and the liquid level sensor 49d are electrically equipped with a control system 28d connected. In particular, the liquid level sensor is 49d a liquid level sensor for detecting the height of the liquid level in the storage container 30d is stored. The control 28d executes a release control to remove foreign substances from the storage container30d by opening the dispensing valve 49 based on the measurement result of the liquid level sensor 49d to be released to the outside. Additionally, opening the release valve involves... 49 the degree of opening of the dispensing valve 49 preferably set up to gradually release the foreign substances and the hydrogen gas, so as not to release a large amount of the foreign substances and a large amount of the hydrogen gas from the storage container 30 to release it all at once. The control 28d is provided with a determiner (determining device) and a dispensing control device, which are functionally controlled by the CPU , the ROM , the RAM and the memory is accessed, thereby achieving delivery control. The delivery path 59 and the delivery valve 49 are an example of a dispensing mechanism located in the storage container 30The release valve releases stored foreign substances to the outside. 49 This is an example of an electrically controlled valve for opening and closing the delivery path. 59 . The Fig. 8 represents a shut-off valve 25a that in the recording 25 is provided.

[0041] The Fig. Figure 9 is a flowchart illustrating an example of delivery control. This delivery control is repeatedly implemented at predetermined intervals by the controller. 28d executed. First, it is determined whether the hydrogen gas filling is complete or not (step S11 It starts from, for example, at least one rate of change of a pressure value, which is measured by the pressure sensor. 42 is indicated, which falls within a predetermined range, a rate of change of the flow rate, which is determined by the flow rate sensor. 43is indicated, which falls within a predetermined range, a rate of change of temperature measured by the temperature sensor 41 is indicated, which falls within a predetermined range, closing the fuel cover of the lid box and a non-communicating state between the communicators. 15 and 26 Determines that the hydrogen gas filling process is complete. If in this step S11 If a negative determination is made, this control ends.

[0042] If a confirmatory determination is made in the step S11 The process is carried out based on the pressure sensor. 42 determines whether the pressure value in the second fill path 53 is smaller than a predetermined value α, or not (step S12 ). Since the recording 25 with the shut-off valve 25a As provided, as described above, the first fill path 52, the second fill path 53 and the storage container 30d , if a confirmatory determination is made in the step S11 is carried out, not in connection with the exterior, and the internal pressure of the second filling path. 53 is essentially the same as the internal pressure of the storage tank 30d For this reason, the pressure sensor 42 in the second fill path 53 provided, but not limited to, but can be used in the first fill path 52 or in the storage container 30d be provided. If in that step S12 If a negative determination is made, the processing of the step will be interrupted. S12 executed again. The processing of the step. S12 This is an example of processing performed by a determiner (determining device) configured to determine whether the internal pressure of at least one from the first filling path 52, the second fill path 53 and the storage container 30d is lower than a predetermined value, or not.

[0043] If in that step S12 A confirmatory determination is carried out, based on the liquid level sensor, to determine whether the storage quantity in the storage container is sufficient. 30d equal to or greater than a predetermined value β 49d, or not (step S13 ). If in that step S13 If a negative determination is made, this control ends. If in the step S13 Once a confirmatory determination has been made, the dispensing valve opens. 49 (Step S14 Next, based on the liquid level sensor... 49d determines whether the storage quantity in the storage container 30d less than a predetermined value γ is, or not (step S15 ). If in that step S15If a negative determination is made, the processing of the step will resume. S15 executed. If in the step S15 Once a confirmatory determination has been made, the dispensing valve closes. 49 (Step S16 ). Processing the steps S14 and S16 This is an example of processing performed by the dispensing control, which is configured to temporarily open the dispensing valve. 49 to open when it is determined that the internal pressure of the second filling path 53 lower than a predetermined value.

[0044] The Fig. Figure 10 is a time diagram that illustrates an example of delivery control. Fig. 10 represents the pressure value in the second fill path 53 This is based on the measured value of the pressure sensor. 42 , the open and closed state of the dispensing valve 49and a storage quantity of foreign materials in the storage container 30d was calculated. If the storage quantity is equal to or greater than a predetermined value. β is, and the filling of the hydrogen gas at a time t11 Once complete, the pressure values ​​in the first filling path decrease. 52 , in the second fill path 53 and in the storage container 30d gradually according to the operation of the fuel cell 21 The reason for this is as follows. The supply of hydrogen gas from the tank 22 to the fuel cell 21 reduces the internal pressure of the tank 22 , so that the internal pressure of the tank 22 by a predetermined value or more than that of the second fill path 53 This opens the shut-off valve. 233 the valve mechanism 23 , to extract the hydrogen gas from the second filling path 53 , the first fill path 52and the storage container 30d into the tank 22 to introduce, so that the internal pressure of the second filling path 53 decreases. If the pressure value at a time t12 smaller than the predetermined pressure value α is, opens the delivery valve 49 , to remove foreign materials from the storage container 30d to be released to the outside. If the storage quantity of foreign substances in the storage container 30d smaller than the predetermined value γ at that time t13 is, closes the discharge valve 49 .

[0045] If, in the manner described above, the internal pressure of the second filling path 53 lower than the predetermined value α is, namely when the internal pressure of the second filling path 53 If the temperature is relatively low, the release valve opens. 49 For example, if the dispensing valve 49 at the time when the internal pressure of the second filling path opens 53If the internal pressure of the second filling path is high, the hydrogen gas could be released along with the foreign substances. 53 If the temperature is relatively low, the release valve opens. 49 , in order to suppress the release of hydrogen gas.

[0046] Although some embodiments of the present invention have been described in detail, the present invention is not limited to the specific embodiments, but can be varied or modified within the scope of the present invention as claimed.

[0047] In the embodiment and variations described above, a fuel cell vehicle has been described as an example of a vehicle in which the fuel cell 21The invention is not limited to vehicles mounted on a conventional vehicle. For example, a vehicle can be one equipped with an internal combustion engine capable of burning hydrogen gas or a cooling fuel gas. In this case, liquefied petroleum gas, liquefied natural gas, compressed natural gas, and the like can be used as fuel gases to be filled into a tank, in addition to hydrogen gas. Any fuel gas must be cooled below freezing and then filled into the tank.

[0048] A device equipped with a tank has: the tank to be filled with a fuel gas; a valve mechanism provided in the tank; a receptacle to which a nozzle of a fuel gas filling device (fuel gas filling device) can be connected; a first filling path, wherein an upstream end of the first filling path is connected to the receptacle; a second filling path, wherein a downstream end of the second filling path is connected to the tank by the valve mechanism; and a storage container that hermetically connects between a downstream end of the first filling path and an upstream end of the second filling path and stores foreign substances contained in the fuel gas, wherein the storage container is positioned vertically above the downstream end of the first filling path. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] JP 2011149541 A

[0002]

Claims

[1] Device equipped with a tank, with: the tank to be filled with a fuel gas (22); a valve mechanism (23) provided in the tank (22); a receptacle (25) to which a nozzle (13) of a fuel gas filling device (10) can be connected; a first filling path (52), wherein an upstream end (521) of the first filling path (52) is connected to the intake (25); a second filling path (53), wherein a downstream end (532) of the second filling path (53) is connected to the tank (22) via the valve mechanism (23); and a storage container (30a, 30b, 30c, 30d) which hermetically connects a downstream end (522) of the first filling path (52) and an upstream end (531) of the second filling path (53) and stores foreign substances contained in the fuel gas, wherein the storage container (30a, 30b, 30c, 30d) is positioned vertically above the downstream end (522) of the first filling path (52). [2] Device equipped with the tank according to claim 1, furthermore with a dispensing mechanism (31, 49, 59) which releases the foreign substances stored in the storage container (30a, 30b, 30c, 30d) to the outside. [3] Device equipped with the tank according to claim 1 or 2, wherein the length of the first filling path (52) is shorter than that of the second filling path (53). [4] Device equipped with the tank according to one of claims 1 to 3, wherein a direction of an axis of an opening of the downstream end (522) of the first filling path (52) intersects a vertical direction, and an angle of a vertical upper side between the direction of the axis of the opening of the downstream end (522) of the first filling path (52) and an inner surface of a wall section of the storage container (30b) that intersects the axis, is equal to or greater than 90 degrees and less than 180 degrees. [5] Device equipped with the tank according to one of claims 1 to 4, wherein an opening of the upstream end (531) of the second filling path (53) is directed in a horizontal direction or a vertical direction upwards with respect to the horizontal direction. [6] Device equipped with the tank according to any one of claims 1 to 5, wherein the storage container (30a, 30c) has a blocking wall section (36, 35b1), and the blocking wall section (36, 35b1) projects inwards from an inner side surface (33, 37) of the storage container (30a, 30c), is positioned vertically above a section that is positioned on a vertically lowest side of the storage container (30a, 30c), and is positioned vertically below the upstream end (531) of the second filling path (53). [7] Device equipped with the tank according to any one of claims 1 to 6, further comprising: a bypass path (54) that bypasses the storage tank (30) and is connected to the first and second filling paths (52, 53); a switching mechanism (48) that switches between a connected state in which the first and second filling paths (52, 53) are connected to each other through the storage container (30) without the bypass path (54), and a bypass state in which the first and second filling paths (52, 53) are connected to each other through the bypass path (54) without the storage container (30); and a switching control (28) configured to control the switching mechanism (48) to be in a connected state until a predetermined period has elapsed since the time at which the fuel gas was started to be filled into the tank (22), and configured to control the switching mechanism (48) to be in the bypassed state until the filling of the fuel gas is complete after the predetermined period has elapsed. [8] Device equipped with the tank according to claim 7, wherein the switching mechanism (48) is a three-way valve (48) provided between the first filling path (52) or the second filling path (53) and the bypass path (54). [9] Device equipped with the tank according to claim 2, wherein the dispensing mechanism (49, 59) has: a discharge path (59) that is connected to the storage container (30); and an electrically controlled valve (49) that opens and closes the delivery path, also comprising: a determining device (28d) configured to determine whether an internal pressure of at least one of the first filling path (52), the second filling path (53) and the storage container (30) is lower than a predetermined value or not; and a dispensing control (28d) which is configured to temporarily open the electrically controlled valve (49) when it is determined that the internal pressure is lower than the predetermined value. [10] Device equipped with the tank according to claim 9, furthermore with a pressure sensor (49d) that detects the internal pressure, wherein the determining device (28d) is configured to determine, starting from a detection value of the pressure sensor (49d), whether the internal pressure is lower than the predetermined pressure or not.

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