JP2022003262A - Valve device - Google Patents

Abstract

To provide a valve device capable of relieving pressure inside a tank without providing a dedicated configuration for pressure relief.SOLUTION: A valve device 10 has an attachment member 38 for attaching a solenoid valve 40 to a body 20. The attachment member 38 can take an attachment position where a sleeve 41 is attached to the body 20 with regulating its position so that a valve element 51 of the solenoid valve 40 is located at a usage position at which a valve open position or a valve close position can be taken, and an attachment release position T2 where the sleeve 41 can be moved so that the valve element 51 is at a position for opening a gas flow passage 30.SELECTED DRAWING: Figure 5

Description

The present invention relates to a valve device.

Conventionally, a valve device is attached to the base of a tank that accommodates high-pressure gas. The valve device controls the supply and discharge of gas to the tank. The valve device integrally includes a body having a gas flow path through which gas flows, and various valves mounted on the body. Some such valve devices include, for example, a depressurizing means for discharging the gas in the tank to the outside and depressurizing the inside of the tank when the valve fails.

For example, the depressurization valve of Patent Document 1 has an inflow passage for inflowing gas into a high-pressure tank as a tank, an outflow passage for outflowing gas from the high-pressure tank, and a depressurization passage for discharging gas from the high-pressure tank to the outside. Has a pressure detection path.

In the inflow passage, an inlet manual valve and a check valve are arranged in order from the gas inlet toward the high pressure tank. The inflow passage can be closed by manually operating the inlet manual valve, and the gas flows into the high-pressure tank in a state where the check valve prevents the gas from flowing from the high-pressure tank to the inlet.

In the outflow passage, a main check valve and an outlet manual valve are arranged in order from the high-pressure tank toward the gas outlet. The outflow passage can be closed by manually operating the outlet manual valve, and the opening and closing of the outflow passage is controlled by the main stop valve.

The pressure detection path is a passage for detecting the pressure in the high pressure tank. The first end of the pressure detection path is connected to the high pressure tank and the second end of the pressure detection path is located on the side surface of the body. A pressure sensor is attached to the second end of this pressure detection path. The pressure sensor detects the pressure in the high pressure tank. By moving this pressure sensor with respect to the pressure detection path, the inside and the outside of the high pressure tank communicate with each other via the pressure detection path.

For example, when the main stop valve fails, such as when the valve is closed, if the pressure sensor is moved so as to protrude from the side surface of the body, the pressure detection path and the outside of the body communicate with each other via the inside of the pressure sensor, and the pressure sensor is moved. The gas in the high pressure tank can be discharged to the outside, and the pressure in the high pressure tank can be released.

Japanese Unexamined Patent Publication No. 2011-163522

In Patent Document 1, a pressure sensor is used to configure a pressure relief valve. However, the pressure sensor is not an essential configuration for a valve device, and if it is a valve device that does not have a pressure sensor, it is necessary to provide a manual pressure relief valve as a dedicated configuration for releasing the pressure in the high pressure tank, resulting in this. This has led to an increase in the cost and size of the valve device.

An object of the present invention is to provide a valve device capable of depressurizing the inside of a tank without providing a dedicated configuration for depressurization.

The valve device for solving the above problems includes a body having a gas flow path communicating with a tank-side opening that opens toward the inside of the tank and a valve-side opening that opens toward the outside, and the body. The solenoid valve is mounted and has a solenoid valve that opens the gas flow path at the valve open position and closes the gas flow path at the valve closed position, and a mounting member for attaching the solenoid valve to the body. A sleeve, a movable iron core that slides in the sleeve along the axial direction of the sleeve, and a valve body that moves in the sleeve by the operation of the movable iron core and is located at the valve opening position or the valve closing position. The mounting member attaches the solenoid valve to the body, and the sleeve is placed in a position where the valve body can take the valve opening position or the valve closing position. The gist is that it is possible to take a mounting position where the position is restricted with respect to the body and a mounting / dismounting position where the sleeve can be moved so that the valve body is located at a position where the gas flow path is opened. And.

According to this, when the mounting member is positioned at the mounting release position when the pressure is released in the tank, the sleeve of the solenoid valve can be moved with respect to the body. Then, by moving the sleeve away from the body, the gas flow path can be opened by the valve body. Then, the tank-side opening and the valve-side opening can be communicated with each other via the gas flow path, and the gas in the tank can be discharged to the outside through the tank-side opening, the gas flow path, and the valve-side opening. , The inside of the tank can be depressurized. That is, the pressure inside the tank can be released by operating the mounting member for mounting the solenoid valve on the body. In addition, the gas flow path and valve side opening of the body are used as the depressurization flow path, and no special configuration such as a depressurization pipe or valve is required separately, and the depressurization inside the tank is not required. Even if it is a valve device that enables this, it is possible to suppress an increase in cost and an increase in size, and there is no decrease in mountability due to the provision of a dedicated configuration.

Regarding the valve device, the solenoid valve is arranged between a fixed core fixed inside the sleeve and the fixed core and the movable core in the axial direction of the sleeve, and the valve body is placed at the mounting position. It has an urging member for urging the valve closing position, and the mounting release position may be a position where the urging of the valve body by the urging member is released.

According to this, when the mounting member is positioned at the mounting release position and the sleeve is moved so as to be separated from the body, the fixed core is separated from the movable core and the urging force of the urging member is released. That is, the urging of the valve body in the direction of closing the gas flow path is released. Therefore, when depressurizing the inside of the tank, the valve body can be moved in the direction in which the gas flow path opens due to the pressure in the tank, and the inside of the tank can be depressurized through the gas flow path.

For the valve device, the body has a mounting hole into which the first end in the axial direction of the sleeve is inserted, the mounting hole is a female screw hole having a female screw on a part of the inner peripheral surface, and the sleeve is an outer peripheral. The sleeve-side restricting portion that protrudes radially from the surface is provided on the second end side of the sleeve from the first end, and the sleeve body is provided on the second end side of the sleeve-side restricting portion. The member has an annular shape into which the sleeve body is inserted, has a male screw screwed into the mounting hole on the outer peripheral surface, and has a nut-side regulating portion that contacts the sleeve-side regulating portion at the mounting position. May be good.

According to this, when the mounting member is screwed into the mounting hole, the nut-side regulating portion comes into contact with the sleeve-side regulating portion, and the sleeve can be mounted on the body in a state where the sleeve is restricted from coming out of the mounting member. can. Further, when the mounting member is screwed out from the mounting hole and positioned at the mounting release position, the contact of the nut side regulating portion with the sleeve side regulating portion is released, and the valve body is positioned at the position where the valve body opens the gas flow path. Will be possible. Therefore, the solenoid valve can be attached to the body and the inside of the tank can be depressurized by the attachment member having a simple structure.

Regarding the valve device, the gas flow path includes a first flow path that is upstream when the tank is filled with gas, and a second flow path that is downstream of the first flow path, and the first flow path. The flow path and the second flow path have an intersection where the second flow path intersects with each other, and the gas flow path takes the valve opening position when the gas is filled and is closed when the gas filling is completed. The solenoid valve that takes the valve position may be arranged, and the valve seat to which the valve body contacts and separates may be arranged in the first flow path that is on the anti-second flow path side of the intersection.

According to this, the intersection is located closer to the inside of the tank than the valve seat among the portions located between the inside of the tank and the valve seat in the gas flow path. Therefore, it is always the pressure in the tank that acts on the intersection, and the change in pressure acting on the intersection is small. Therefore, each time the gas is filled and the gas is supplied, the load due to the pressure fluctuation generated at the intersection of the first flow path and the second flow path can be suppressed to a small value, and the pressure resistance fatigue life on the gas flow path is adversely affected. It is suppressed.

According to the present invention, the inside of the tank can be depressurized without providing a dedicated configuration for depressurization.

A schematic diagram showing a gas tank, a valve device, and a fuel cell of a fuel cell vehicle. Sectional drawing which shows the valve device. FIG. 5 is an enlarged cross-sectional view showing the vicinity of the valve chamber of the gas flow path. Sectional drawing which shows the state which the opening on a tank side was closed by a manual valve. Cross-sectional view of the state where the mounting member is positioned at the mounting release position. Sectional drawing which moved the valve body together with a sleeve.

Hereinafter, an embodiment in which the valve device is embodied will be described with reference to FIGS. 1 to 6.
As shown in FIG. 1, the valve device 10 of the present embodiment is mounted on the fuel cell vehicle V. The fuel cell vehicle V is a vehicle that travels on the electric power generated by the fuel cell 12. The fuel cell vehicle V is equipped with a fuel cell 12, a gas tank 11 as a tank for storing fuel gas supplied to the fuel cell 12, and a valve device 10 attached to the gas tank 11. In the present embodiment, high-pressure hydrogen gas is stored as fuel gas in the storage chamber in the gas tank 11.

The gas tank 11, the fuel cell 12, and the valve device 10 are mounted under the floor panel at the rear of the fuel cell vehicle V. However, the mounting location of the gas tank 11, the fuel cell 12, and the valve device 10 is not limited to under the floor panel at the rear of the fuel cell vehicle V, and may be appropriately changed. For example, the front of the fuel cell vehicle V or the trunk room may be changed. It may be below. Further, in the present embodiment, the valve device 10 is mounted with the lower surface side of the valve device 10 exposed from below the vehicle body F so that maintenance can be performed from below the vehicle body F of the fuel cell vehicle V.

As shown in FIG. 2, the valve device 10 controls the supply of fuel gas from the gas station 13 to the gas tank 11 and the supply of fuel gas from the gas tank 11 to the fuel cell 12. The valve device 10 includes a body 20, a solenoid valve 40 that opens and closes the gas flow path 30 of the body 20, and a manual valve 70. In the present embodiment, the first direction of the body 20 is the vehicle front-rear direction X, the second direction orthogonal to the first direction is the vehicle left-right direction Y, and the third direction orthogonal to the first direction and the second direction is the vehicle up / down direction. Direction Z.

The body 20 is, for example, a block made of an aluminum alloy. The body 20 has a first mounting hole 21 in the front end surface 20a as the first end surface in the first direction, and a second mounting hole 22 in the rear end surface 20b as the second end surface in the first direction. Further, the body 20 has a third mounting hole 23 on the lower end surface 20c.

In the valve device 10, the solenoid valve 40 is mounted on the body 20 by being mounted on the first mounting hole 21 as a mounting hole. Further, the manual valve 70 is mounted on the body 20 by being mounted on the third mounting hole 23. A joint 24 is attached to the second mounting hole 22. A pipe 28 is connected to the joint 24. The filling pipe 29a and the supply pipe 29b are branched from the pipe 28. A gas station 13 can be connected to the filling pipe 29a, and a fuel cell 12 is connected to the supply pipe 29b via a pressure reducing valve 14. Further, the body 20 has a tank-side opening 33b, which will be described later, on the right end surface as an end surface in the second direction, and the tank-side opening 33b opens toward the gas tank 11.

As shown in FIG. 2 or 3, the first mounting hole 21 is a stepped hole-shaped female screw hole. The first mounting hole 21 has a large-diameter hole 21b that opens in the front end surface 20a of the body 20 and a small-diameter hole 21a that is located closer to the rear end surface 20b of the body 20 than the large-diameter hole 21b. It has a smaller diameter than the large diameter hole 21b. The small diameter hole 21a and the large diameter hole 21b are located coaxially.

At the inner bottom surface 21c of the small diameter hole 21a, the first end of the first connection flow path 31 in the axial direction, which is closer to the small diameter hole 21a, is opened as a valve hole 31a. Further, of both ends in the axial direction of the first connection flow path 31, the second end, which is the end opposite to the valve hole 31a, is opened as the valve side opening 31b in the inner bottom surface 22a of the second mounting hole 22. There is. The first connection flow path 31 is a flow path that extends linearly in the vehicle front-rear direction X. Therefore, the central axis V1 of the first connection flow path 31 extends linearly in the vehicle front-rear direction X. A valve seat 26 is provided at the bottom of the small diameter hole 21a. The valve seat 26 is configured by forming the inner peripheral surface of the valve hole 31a into a shape that expands in diameter toward the inner bottom surface 21c of the small diameter hole 21a.

A female screw is formed on the inner peripheral surface of the large-diameter hole 21b. That is, it can be said that the large-diameter hole 21b is a female screw hole, and the first mounting hole 21 having the large-diameter hole 21b is a female screw hole having a female screw on a part of the inner peripheral surface. A mounting member 38 for attaching the solenoid valve 40 to the body 20 is screwed into the large-diameter hole 21b, and the solenoid valve 40 is attached to the body 20 by the mounting member 38.

Here, the solenoid valve 40 will be described. The solenoid valve 40 is attached to the sleeve 41, the fixed iron core 47 fixed in the sleeve 41, the movable iron core 49 sliding in the sleeve 41, and the movable iron core 49, and the inside of the sleeve 41 is operated by the operation of the sleeve 41. It has a moving valve body 51, a solenoid 55 for driving the movable iron core 49, and an urging member 50 for urging the movable iron core 49.

The sleeve 41 has a cylindrical shape. The extending direction of the central axis N of the sleeve 41 is defined as the axial direction of the sleeve 41. The central axis N of the sleeve 41 is also the central axis of the solenoid valve 40. In the present embodiment, the central axis N of the sleeve 41 extends in the vehicle front-rear direction X, and the axis direction of the sleeve 41 coincides with the vehicle front-rear direction X. Of both ends of the sleeve 41 in the axial direction, the end closer to the first mounting hole 21 is the first end 41b, and the end opposite to the first end 41b is the second end 41c. The sleeve 41 opens at the first end 41b and the second end 41c in the axial direction. The sleeve 41 is internally provided with a sliding hole 41a extending in the axial direction.

The sleeve 41 has an insertion portion 42 including a first end 41b in the axial direction, a disk-shaped sleeve-side regulation portion 43 located on the second end 41c side of the insertion portion 42, and a sleeve-side regulation portion 43. It has a tubular sleeve body 44 located on the two-end 41c side. Therefore, the sleeve 41 has the sleeve-side regulating portion 43 on the second end 41c side of the first end 41b, and has the sleeve body 44 on the second end 41c side of the sleeve-side regulating portion 43. The second end 41c of the sleeve 41 is composed of an annular lid portion 45. The inner diameter of the sleeve 41 is constant in the axial direction except for the lid portion 45, and the outer diameter of the sleeve 41 varies depending on the portion.

Specifically, the outer diameter of the insertion portion 42 is smaller than the outer diameter of the sleeve-side regulating portion 43 and larger than the outer diameter of the sleeve main body 44. In the present embodiment, the outer diameter of the insertion portion 42 is made larger than the outer diameter of the sleeve main body 44, but the outer diameter of the insertion portion 42 is not limited to this, and may be the same as or smaller than the outer diameter of the sleeve main body 44. good.

The outer diameter of the insertion portion 42 is slightly smaller than the inner diameter of the small diameter hole 21a, and the insertion portion 42 is inserted into the small diameter hole 21a via the large diameter hole 21b. A seal member 46 such as an O-ring is mounted on the outer peripheral surface of the insertion portion 42. The sealing member 46 is in close contact with the outer peripheral surface of the insertion portion 42 and the inner peripheral surface of the small diameter hole 21a, and airtightly seals between the outer peripheral surface of the insertion portion 42 and the inner peripheral surface of the small diameter hole 21a.

The first end 41b of the sleeve 41 and the inner bottom surface 21c of the small diameter hole 21a are separated from each other in the axial direction of the sleeve 41. In the space surrounded by the first end 41b of the sleeve 41, the inner peripheral surface of the small diameter hole 21a, and the inner bottom surface 21c of the small diameter hole 21a, a valve chamber S in which the valve body 51 described later is housed is provided. It is imaged. A valve hole 31a can communicate with the valve chamber S, and a valve seat 26 faces the valve chamber S.

The sleeve-side regulating portion 43 has a disk shape that protrudes radially outward from the insertion portion 42 and the sleeve main body 44. The outer diameter of the sleeve-side regulating portion 43 is larger than the inner diameter of the small diameter hole 21a and smaller than the inner diameter of the large diameter hole 21b. The sleeve-side regulating portion 43 is not inserted into the small-diameter hole 21a, but is located in the large-diameter hole 21b. A part of the sleeve body 44 is located in the large diameter hole 21b, and the other part protrudes to the outside of the body 20.

The fixed iron core 47 is fixed in the sleeve 41. The fixed iron core 47 has a columnar press-fitting portion 47a that is press-fitted into a portion of the sliding hole 41a located at the sleeve main body 44, and a shaft portion 47b that penetrates the lid portion 45. In the press-fitting portion 47a, the end surface closer to the shaft portion 47b contacts the inner surface of the lid portion 45, and this contact prevents the fixed iron core 47 from coming out of the sleeve 41.

A sealing member 48 such as an O-ring is mounted on the outer peripheral surface of the press-fitting portion 47a. The sealing member 48 is in close contact with the outer peripheral surface of the press-fitting portion 47a and the inner peripheral surface of the sleeve 41, and airtightly seals between the outer peripheral surface of the press-fitting portion 47a and the inner peripheral surface of the sleeve 41. The shaft portion 47b has a male screw on the outer peripheral surface. The shaft portion 47b penetrates the lid portion 45 and protrudes outside the sleeve 41 from the second end 41c of the sleeve 41. A nut 63 is screwed into the shaft portion 47b.

Here, a mounting member 38 for mounting the solenoid valve 40 on the body 20 will be described. The mounting member 38 is an annular shape into which the sleeve body 44 is inserted. The mounting member 38 is a nut having a male screw on the outer peripheral surface. The sleeve 41 is attached to the body 20 by screwing the male thread of the mounting member 38 into the female thread of the large diameter hole 21b.

The mounting member 38 has a nut-side regulating portion 38a on the inner peripheral portion. The direction in which the central axis R of the mounting member 38 extends is defined as the axial direction of the mounting member 38. The nut-side restricting portion 38a is formed so as to be annularly recessed from an end surface located in the first mounting hole 21 in the axial direction of the mounting member 38. The inner diameter of the mounting member 38 on the inner peripheral surface of the nut side regulating portion 38a is slightly larger than the outer diameter of the sleeve side regulating portion 43. The sleeve-side regulating portion 43 is arranged inside the nut-side regulating portion 38a. The inner bottom surface of the nut-side restricting portion 38a is an annular surface extending flatly in the radial direction of the mounting member 38. Then, the inner bottom surface of the nut-side regulating portion 38a comes into contact with the annular surface of the sleeve-side regulating portion 43 near the second end 41c.

The mounting member 38 has a flange 39 on the outside of the body 20 in the axial direction. The outer diameter of the mounting member 38 at the flange 39 is larger than the outer diameter of the mounting member 38 with the male screw and larger than the inner diameter of the large diameter hole 21b. The mounting member 38 is screwed into the large diameter hole 21b until the flange 39 comes into contact with the front end surface 20a of the body 20.

The sleeve 41 is attached to the body 20 and the solenoid valve 40 is attached to the body 20 by screwing the attachment member 38 into the large diameter hole 21b until the flange 39 comes into contact with the front end surface 20a of the body 20. Further, the inner bottom surface of the nut-side regulating portion 38a contacts the annular surface of the sleeve-side regulating portion 43, and this contact prevents the sleeve 41 from coming off from the mounting member 38. As described above, the state in which the mounting member 38 is screwed into the large-diameter hole 21b until the flange 39 comes into contact with the front end surface 20a of the body 20 is defined as the mounting position T1 of the mounting member 38. At this mounting position T1, the sleeve 41 is mounted with the position restricted with respect to the body 20.

At the mounting position T1, the inner bottom surface of the nut-side restricting portion 38a is in contact with the annular surface of the sleeve-side restricting portion 43 near the sleeve body 44. Further, at the mounting position T1, the annular surface of the sleeve-side regulating portion 43 near the insertion portion 42 is separated from the inner bottom surface of the large-diameter hole 21b, and the first end 41b of the sleeve 41 is the inner bottom surface 21c of the small-diameter hole 21a. It is separated from. That is, at the mounting position T1, the sleeve 41 is mounted at a position for partitioning the valve chamber S.

Further, as shown in FIG. 5 or FIG. 6, the mounting member 38 takes a mounting / releasing position T2 different from the mounting position T1. The mounting release position T2 is a position that allows the sleeve 41 to be moved with respect to the body 20. The mounting release position T2 will be described in detail later. Further, the following description of the solenoid valve 40 is based on a state where the mounting member 38 is at the mounting position T1 and the sleeve 41 is mounted on the body 20.

As shown in FIG. 2 or 3, the movable iron core 49 is slidably accommodated in the sliding hole 41a of the sleeve 41. The movable iron core 49 is columnar. The outer diameter of the movable iron core 49 is slightly smaller than the inner diameter of the sleeve 41. The movable iron core 49 has an accommodating portion 49a formed so as to be recessed in a columnar shape from the end surface facing the fixed iron core 47. The urging member 50 is housed in the housing portion 49a. Examples of the urging member 50 include coil springs, but leaf springs and rubber may also be used. In short, if the movable iron core 49 can be urged toward the valve seat 26, the configuration of the urging member 50 may be appropriately changed.

The first end of the urging member 50 is in contact with the inner bottom surface of the accommodating portion 49a, and the second end of the urging member 50 is in contact with the press-fitting portion 47a of the fixed iron core 47. The urging member 50 is arranged between the movable iron core 49 and the fixed iron core 47 in the compressed state, and urges the movable iron core 49 toward the valve seat 26 by using the returning force from the compressed state as an urging force. In the present embodiment, the urging force of the urging member 50 is set to be smaller than the load due to the supply pressure of the fuel gas from the gas station 13.

A part of the valve body 51 attached to the movable iron core 49 is fitted into the sliding hole 41a of the sleeve 41. The valve body 51 is attached to both ends of the movable iron core 49 in the axial direction on the opposite side to the end provided with the accommodating portion 49a. The valve body 51 has a cylindrical main body portion 52 and a seal portion 53 protruding from the main body portion 52 toward the valve seat 26 in a conical shape.

The outer diameter of the main body 52 is slightly smaller than the inner diameter of the sleeve 41. Inside the main body 52, a connecting portion 49b protruding from the movable iron core 49 toward the valve body 51 is inserted. The connecting portion 49b and the main body portion 52 are connected by a support pin 64. A support pin 64 is loosely inserted into the main body 52, and a valve body 51 is attached to a movable iron core 49. The valve body 51 is configured to be movable by the operation of the movable iron core 49.

The seal portion 53 is brought into contact with and separated from the valve seat 26 by the operation of the movable iron core 49. The diameter is reduced from the main body 52 toward the tip of the seal 53 along the axial direction of the sleeve 41. The outer peripheral surface of the seal portion 53 is a conical seal surface. The diameter at the tip of the seal portion 53 is slightly smaller than the diameter of the valve hole 31a, and the tip of the seal portion 53 is inserted into the valve hole 31a. When the tip of the seal portion 53 is inserted into the valve hole 31a and the seal surface comes into contact with the valve seat 26, the valve hole 31a is closed and the communication between the valve side opening 31b and the valve chamber S is cut off. In the solenoid valve 40, the position where the seal portion 53 is seated on the valve seat 26 by the urging force of the urging member 50 and the valve hole 31a is closed by the valve body 51 is defined as the valve closing position K1.

On the other hand, when electric power is supplied to the solenoid 55, which will be described later, and the movable iron core 49 moves against the urging force of the urging member 50 until it comes into contact with the fixed iron core 47, the valve body 51 separates from the valve seat 26 together with the movable iron core 49. .. Then, the seal portion 53 is separated from the valve seat 26, and the valve hole 31a is opened. As shown by the two-dot chain line in FIG. 3, in the solenoid valve 40, the position where the seal portion 53 is separated from the valve seat 26 and the valve hole 31a is opened is defined as the valve opening position K2. At the valve opening position K2, the valve side opening 31b and the valve chamber S communicate with each other.

Then, when the mounting member 38 is at the mounting position T1, the valve body 51 of the solenoid valve 40 can take two positions, the valve opening position K2 and the valve closing position K1. The position where the valve opening position K2 or the valve closing position K1 can be taken is defined as the position where the solenoid valve 40 is used. Then, when the mounting member 38 is at the mounting position T1, the mounting member 38 positions the sleeve 41 with respect to the body 20 so that the valve body 51 is located at a position where the valve body 51 can take the valve closing position K1 or the valve opening position K2. Regulate and install.

As shown in FIG. 2, the solenoid 55 is supplied with electric power to generate power for driving the movable iron core 49. The solenoid 55 has a cylindrical bobbin 56 arranged on the outer peripheral side of the sleeve body 44, and a winding 57 provided on the outer periphery of the bobbin 56.

The solenoid valve 40 has a cover 58 that covers the sleeve body 44 including the solenoid 55. Of both ends of the cover 58 in the axial direction, the end away from the body 20 is the first end, and the end closer to the body 20 is the second end. The cover 58 forms a double tubular structure inside the outer peripheral wall 59, the tubular outer peripheral wall 59, the top plate 60 provided at the first end of the outer peripheral wall 59, and the second end of the outer peripheral wall 59. It has a continuous inner peripheral wall 61.

The cover 58 has a cylindrical shape that opens at the second end of the outer peripheral wall 59. The cover 58 has a through hole 60a in the central portion of the top plate 60. Further, a bobbin 56 around which the winding 57 is wound is integrated on the inner peripheral surface of the inner peripheral wall 61 of the cover 58. Therefore, the solenoid 55 is integrated with the cover 58.

The shaft portion 47b of the fixed iron core 47 penetrating the lid portion 45 of the sleeve 41 penetrates through the through hole 60a of the cover 58. A nut 63 is screwed into the male screw of the shaft portion 47b penetrating the cover 58 as described above. By screwing the nut 63, the second end of the cover 58 is pressed against the flange 39 of the mounting member 38, and the cover 58 is mounted on the solenoid valve 40. The solenoid 55 is covered with the outer peripheral wall 59 of the cover 58 and the top plate 60.

The solenoid valve 40 having the above configuration is mounted on the body 20 by restricting the position of the sleeve 41 with respect to the body 20 by locating the mounting member 38 at the mounting position T1, while the mounting member 38 is mounted at the mounting release position T2. By positioning it, the sleeve 41 can be moved with respect to the body 20.

As shown in FIG. 5, the mounting release position T2 is a position where the mounting member 38 located at the mounting position T1 is screwed back from the large diameter hole 21b by a predetermined amount. In order to position the mounting member 38 at the mounting position T1 at the mounting / releasing position T2, it is necessary to remove the cover 58 and the solenoid 55 from the sleeve 41. To remove the cover 58 and the solenoid 55 from the sleeve 41, the nut 63 screwed to the shaft portion 47b of the fixed iron core 47 is screwed back from the shaft portion 47b. Next, the cover 58 is removed from the shaft portion 47b. Since the solenoid 55 is integrated with the inner peripheral wall 61 of the cover 58, the solenoid 55 is removed from the sleeve 41 together with the cover 58. As a result, the cover 58 and the solenoid 55 are removed from the sleeve 41. After that, the mounting member 38 is screwed back by a predetermined amount.

As the mounting member 38 is screwed back from the large diameter hole 21b, the inner bottom surface of the nut side regulating portion 38a is separated from the annular surface of the sleeve side regulating portion 43, and a gap M is formed. By using this gap M, the sleeve 41 can be moved away from the body 20 along the axial direction.

In the present embodiment, the dimension of the gap M is set so that the seal member 46 does not come out of the small diameter hole 21a when the sleeve 41 is moved. That is, when the sleeve 41 is moved, the sealing member 46 can maintain a state in which the outer peripheral surface of the insertion portion 42 and the inner peripheral surface of the small diameter hole 21a are hermetically sealed. In order to prevent the seal member 46 from coming out of the small diameter hole 21a, the maximum amount that the sleeve 41 can move is the distance from the seal member 46 at the position where the solenoid valve 40 is used to the inner bottom surface 21d of the large diameter hole 21b. Is essential. Then, the screwing amount of the mounting member 38 is set so that the dimension of the gap M formed when the mounting member 38 is screwed back is smaller than the distance, and the set screwing amount is a predetermined screw. It will be a withdrawal.

As shown in FIG. 6, when the mounting member 38 is positioned at the mounting / dismounting position T2 and the sleeve 41 is moved away from the body 20 by the gap M, the fixed core 47 integrated with the sleeve 41 is relative to the movable core 49. Leave. Then, the urging member 50 located between the fixed iron core 47 and the movable iron core 49 is released from the compressed state, and the urging of the movable iron core 49 by the urging member 50 is released. By releasing the urging by the urging member 50, the valve body 51 can easily move to the position where the valve hole 31a is opened. In the present embodiment, when the urging by the urging member 50 is released, the valve body 51 can be moved to a position where the valve hole 31a is opened by the pressure in the gas tank 11. Therefore, by locating the mounting member 38 at the mounting release position T2, the sleeve 41 can be moved so that the valve body 51 is positioned at the position where the gas flow path 30 is opened.

As a result, by locating the mounting member 38 at the mounting release position T2, even if the valve body 51 is at the valve closing position K1, the valve hole 31a can be opened by receiving the pressure in the gas tank 11. That is, by locating the mounting member 38 at the mounting release position T2, the valve body 51 can be positioned at a position where the gas flow path 30, the valve side opening 31b, and the tank side opening 33b communicate with each other. This position is defined as the degassing position K3 of the solenoid valve 40. The degassing position K3 is a position different from the valve closing position K1 and the valve opening position K2.

The solenoid valve 40 is in a position where the valve body 51 takes two positions, the valve closing position K1 and the valve opening position K2, when the mounting member 38 is located at the mounting position T1. Then, the mounting member 38 is positioned at the mounting release position T2, and the solenoid valve 40 is positioned at the gas venting position K3 different from the valve closing position K1 and the valve opening position K2, whereby the gas tank 11 can be depressurized. It can be located at the degassing position K3.

As shown in FIG. 2 or 3, in the body 20, the second mounting hole 22 is a female screw hole in which a female screw is formed on the inner peripheral surface. A joint 24 is screwed into the second mounting hole 22. The joint 24 has a connection portion 24a having a male screw screwed into the second mounting hole 22 on the outer peripheral surface, and a connector portion 24b protruding from the connection portion 24a toward the outside of the body 20. Further, the joint 24 has an in-joint flow path 24c extending along the central axis L of the joint 24. Of both ends of the flow path 24c in the joint in the axial direction, the end closer to the body 20 is the first end, and the end opposite to the first end is the second end. The first end of the inner flow path 24c in the joint communicates with the valve side opening 31b of the first connection flow path 31, and the second end of the inner flow path 24c in the joint opens outward from the end face of the connector portion 24b. ing. Therefore, it can be said that the valve-side opening 31b is open to the outside. A pipe 28 shared by an inlet and an outlet is connected to the connector portion 24b, and the inside of the pipe 28 communicates with the flow path 24c in the joint.

In the body 20, the third mounting hole 23 is a stepped hole. The third mounting hole 23 has a fastening hole 23b that opens in the lower end surface 20c of the body 20, and a guide hole 23a that is located behind the fastening hole 23b. The fastening hole 23b has a larger diameter than the guide hole 23a. The guide hole 23a and the fastening hole 23b are provided coaxially. The guide hole 23a is a hole for guiding the movement of the manual valve 70. A tank-side opening 33b is opened in a part of the inner peripheral surface of the guide hole 23a in the circumferential direction.

The fastening hole 23b is a female screw hole in which a female screw is formed on the inner peripheral surface. A fastening member 80 for attaching the manual valve 70 to the body 20 is screwed into the fastening hole 23b, and the manual valve 70 is attached to the body 20 by the fastening member 80.

As shown in FIG. 4, the manual valve 70 protrudes from the first end of the guide portion 71 inserted into the guide hole 23a and both ends of the guide portion 71 in the axial direction in which the central axis J extends, which is closer to the guide hole 23a. It has a valve portion 72 to be inserted, and a screw portion 73 protruding from a second end opposite to the first end among both ends of the guide portion 71 in the axial direction. Further, the manual valve 70 has an operation portion 74 protruding from the screw portion 73 to the side opposite to the guide portion 71.

The guide portion 71 has a columnar shape. The guide portion 71 slides in the guide hole 23a. The valve portion 72 opens and closes the second end 32b of the second connecting flow path 32 communicating with the valve chamber S. The second connection flow path 32 connects the small diameter hole 21a of the first mounting hole 21 and the guide hole 23a of the third mounting hole 23. Of both ends of the second connection flow path 32 in the axial direction, the end closer to the small diameter hole 21a is referred to as the first end 32a, and the end closer to the guide hole 23a is referred to as the second end 32b. The first end 32a is open to the inner peripheral surface of the small diameter hole 21a, and the second end 32b is open to the inner bottom surface 23c of the third mounting hole 23. The second connection flow path 32 is a flow path that extends linearly in the vehicle vertical direction Z. Therefore, the central axis V2 of the second connection flow path 32 extends linearly in the vehicle vertical direction Z.

The screw portion 73 has a male screw on the outer peripheral surface. The outer diameter of the screw portion 73 is larger than that of the guide portion 71. The operation unit 74 has a smaller diameter than the screw portion 73 and has a hexagonal columnar shape. The operation unit 74 is a portion manually operated by a spanner as a tool. The shape of the operation unit 74 may be changed as appropriate, and the shape of the tool for manually operating the operation unit 74 is also changed according to the shape of the operation unit 74.

The fastening member 80 is annular. The fastening member 80 is a nut having a female screw hole on the inner peripheral surface and a male screw on the outer peripheral surface. The fastening member 80 is fastened to the fastening hole 23b. A screw portion 73 of the manual valve 70 is screwed to the inside of the fastening member 80.

Then, by manually operating the operation portion 74 to screw or retract the screw portion 73 with respect to the fastening member 80, the guide portion 71 is slid in the guide hole 23a and the valve portion 72 is connected to the second connection flow path. It can be brought into contact with and separated from the second end 32b of 32. Then, the second end 32b of the second connection flow path 32 can be opened and closed by the valve portion 72 to communicate or shut off the second connection flow path 32 and the gas tank 11 via the tank side opening 33b. That is, the tank side opening 33b can be opened and closed by the manual operation of the operation unit 74.

The gas flow path 30 in the body 20 is a flow path that communicates the valve-side opening 31b and the tank-side opening 33b. The gas flow path 30 has a first flow path A1 including a first connection flow path 31 and a valve chamber S, and a second flow path A2 including a valve chamber S, a second connection flow path 32, and a guide hole 23a. .. Since the first connection flow path 31 has a valve-side opening 31b, the first flow path A1 includes a valve-side opening 31b. Further, since the guide hole 23a has the tank side opening 33b, the second flow path A2 includes the tank side opening 33b.

Assuming that the central axis of the first flow path A1 is the first central axis L1, the first central axis L1 coincides with the central axis V1 of the first connection flow path 31. It can be said that a part of the valve chamber S at a position where the first central axis L1 is extended to the side opposite to the valve side opening 31b is included in the first connection flow path 31. Further, assuming that the central axis of the second flow path A2 is the second central axis L2, the second central axis L2 coincides with the central axis V2 of the second connection flow path 32. It can be said that a part of the valve chamber S at a position where the second central axis L2 is extended to the side opposite to the guide hole 23a is included in the second connection flow path 32.

The gas flow path 30 has an intersection A where the first central axis L1 of the first flow path A1 and the second central axis L2 of the second flow path A2 intersect each other. In this embodiment, the intersection A is located in the valve chamber S.

Further, the extension line of the first central axis L1 of the first flow path A1 constituting the gas flow path 30 coincides with the central axis N of the sleeve 41 which is the central axis of the solenoid valve 40. That is, the solenoid valve 40 is located at a position where the first central axis L1 of the first flow path A1 is extended in the vehicle front-rear direction X. On the other hand, the second central axis L2 of the second flow path A2 constituting the gas flow path 30 coincides with the central axis J of the guide portion 71 which is the central axis of the manual valve 70. That is, the manual valve 70 is located at a position where the second central axis L2 of the second flow path A2 is extended in the vertical direction Z of the vehicle. In the body 20, the solenoid valve 40 and the manual valve 70 are arranged in the order of the solenoid valve 40 and the manual valve 70 from the valve side opening 31b side on the gas flow path 30.

As described above, the first flow path A1 and the second flow path A2 intersect at the valve chamber S, and the solenoid valve 40 is located on the extension line of the first central axis L1 of the first flow path A1. Since the manual valve 70 is located on the extension line of the second central axis L2 of the two flow paths A2, the solenoid valve 40 and the manual valve 70 do not exist on the same surface of the body 20. That is, the solenoid valve 40 and the manual valve 70 are arranged on different surfaces of the body 20. Specifically, the solenoid valve 40 is arranged on the front end surface 20a of the body 20, and the manual valve 70 is arranged on the lower end surface 20c of the body 20. Further, the operation unit 74 of the manual valve 70 is exposed from the lower surface of the vehicle body F in the fuel cell vehicle V, and can be operated by a tool from below the vehicle body F.

Further, the joint 24 is arranged on the rear end surface 20b of the body 20. The joint 24, the solenoid valve 40, and the manual valve 70 do not exist on one surface of the body 20. That is, the joint 24, the solenoid valve 40, and the manual valve 70 are arranged on different surfaces of the body 20.

The gas flow path 30 functions as a filling flow path when the gas station 13 fills the gas tank 11 with fuel gas, and functions as a supply flow path when the fuel gas is supplied from the gas tank 11 to the fuel cell 12.

Here, the pressure of the first flow path A1 is defined as the pressure P1. Further, the pressure in the storage chamber of the gas tank 11 is the tank pressure P2, and the pressure in the valve chamber S is the valve chamber pressure P3. When the solenoid valve 40 is in the valve closing position K1 and the tank side opening 33b and the second flow path A2 communicate with each other by the manual valve 70, the pressure P1 is smaller than the tank pressure P2 (P1 <P2). At this time, since the valve chamber S communicates with the storage chamber of the gas tank 11 via the second connection flow path 32, the guide hole 23a, and the tank side opening 33b, the valve chamber pressure P3 becomes equal to the tank pressure P2. (P3 = P2).

When the gas tank 11 is filled with fuel gas, when the fuel gas is supplied from the gas station 13 in a state where the tank side opening 33b is communicated with the second connection flow path 32 by the manual valve 70, the first flow path The pressure P1 of A1 becomes the supply pressure of the fuel gas, and the seal portion 53 of the valve body 51 separates from the valve seat 26 against the urging force of the urging member 50. That is, the solenoid valve 40 takes the valve opening position K2, and the valve hole 31a is opened.

Then, the fuel gas flows through the second connection flow path 32, the guide hole 23a, and the tank side opening 33b via the valve chamber S, and is stored in the storage chamber of the gas tank 11. Therefore, when the gas tank 11 is filled with the fuel gas, the first flow path A1 is on the upstream side of the second flow path A2.

When the filling of the fuel gas is completed and the supply of the fuel gas is stopped, the pressure P1 of the first flow path A1 drops, and the urging force of the urging member 50 causes the seal portion 53 of the valve body 51 to valve. Sit on the seat 26. That is, the solenoid valve 40 takes the valve closing position K1. That is, the solenoid valve 40 opens the gas flow path 30 when the gas tank 11 is filled with the fuel gas, and closes the gas flow path 30 when the filling of the fuel gas is completed.

When the fuel gas in the storage chamber of the gas tank 11 is supplied to the fuel cell 12, the solenoid 55 of the solenoid valve 40 is excited with the tank side opening 33b communicated with the second connection flow path 32 by the manual valve 70. By this excitation, the movable core 49 is attracted to the fixed core 47 against the urging force of the urging member 50, and the movable core 49 comes into contact with the fixed core 47. Then, the valve body 51 attached to the movable iron core 49 is separated from the valve seat 26, and the seal portion 53 is separated from the valve seat 26. That is, the solenoid valve 40 takes the valve opening position K2, and the valve hole 31a is opened.

Then, the fuel gas in the storage chamber of the gas tank 11 flows through the guide hole 23a and the second connection flow path 32, and flows through the valve chamber S to the first connection flow path 31. Then, the fuel gas is depressurized by the pressure reducing valve 14 via the in-joint flow path 24c, the pipe 28, and the supply pipe 29b, and then supplied to the fuel cell 12. When the solenoid 55 is degaussed, the seal portion 53 of the valve body 51 is seated on the valve seat 26 due to the urging force of the urging member 50 or the like. That is, the solenoid valve 40 takes the valve closing position K1.

Next, the operation of the valve device 10 will be described.
When the solenoid valve 40 is in the valve closing position K1, at low temperatures, there is a gap between the inner peripheral surface of the sleeve 41 and the outer peripheral surface of the valve body 51, and a gap between the inner peripheral surface of the sleeve 41 and the outer peripheral surface of the movable iron core 49. The water remaining in the valve body 51 may freeze and the valve body 51 may be fixed at the valve closing position K1.

When it is necessary to release the pressure of the gas tank 11 when the valve is closed, first, the operation unit 74 of the manual valve 70 is accessed from below the vehicle body F, and the operation unit 74 is manually operated from below the vehicle body F. Then, the second connection flow path 32 is communicated with the gas tank 11 via the tank side opening 33b.

Next, as shown in FIG. 5, the nut 63 is screwed back from the shaft portion 47b, and the solenoid 55 is removed from the sleeve 41 together with the cover 58. Next, the mounting member 38 is positioned from the mounting position T1 to the mounting release position T2, and a gap M is formed while making the sleeve 41 movable with respect to the body 20.

Then, the sleeve 41 is moved by using the gap M, and as shown in FIG. 6, the annular surface of the sleeve side regulating portion 43 is moved so as to be separated from the body 20 until it comes into contact with the inner bottom surface of the nut side regulating portion 38a. Let me. At the mounting release position T2, the seal member 46 does not come out of the small diameter hole 21a and is in close contact with the outer peripheral surface of the insertion portion 42 and the inner peripheral surface of the small diameter hole 21a. Therefore, the gas in the valve chamber S does not leak to the outside of the body 20 from the first mounting hole 21.

Then, together with the sleeve 41, the fixed iron core 47, the movable iron core 49, and the valve body 51 fixed to the sleeve 41 can be moved together. That is, the solenoid valve 40 can be positioned at the degassing position K3.

As a result, the gas in the gas tank 11 passes through the tank side opening 33b, the guide hole 23a, the second connection flow path 32, the valve chamber S, the first connection flow path 31, the valve side opening 31b, and the in-joint flow path 24c. It is discharged to the pipe 28, and the pressure of the gas tank 11 can be released.

Further, when the solenoid valve 40 is in the valve closing position K1, for example, when the gas tank 11 is depressurized for disposal of the fuel cell vehicle V, the mounting member 38 is positioned at the mounting / releasing position T2 in the same manner as described above. , The sleeve 41 is made movable to form a gap M. Then, the sleeve 41 is moved by the dimension of the gap M. Then, together with the sleeve 41, the fixed iron core 47 moves in the direction away from the body 20. At this time, as the fixed iron core 47 moves, the urging member 50 is displaced from the compressed state to the extended state, and the urging force on the valve body 51 is released. As a result, the valve body 51 can be moved away from the valve seat 26 by receiving the pressure of the gas tank 11, and the solenoid valve 40 can be positioned at the degassing position K3. As a result, the gas in the gas tank 11 has the tank side opening 33b, the guide hole 23a, the second connection flow path 32, the valve chamber S, the first connection flow path 31, the valve side opening 31b, and the joint inner flow path 24c. It is discharged to the pipe 28 via the pipe 28, and the pressure of the gas tank 11 can be released.

According to the above embodiment, the following effects can be obtained.
(1) By locating the mounting member 38 from the mounting position T1 to the mounting release position T2, the sleeve 41 of the solenoid valve 40 can be moved away from the body 20. Then, by moving the sleeve 41 away from the body 20, the gas flow path 30 can be opened by the valve body 51, and the inside of the gas tank 11 can be depressurized through the valve side opening 31b. Therefore, the inside of the gas tank 11 can be depressurized only by operating the mounting member 38 for mounting the solenoid valve 40 on the body 20.

Further, the gas flow path 30 of the body 20 and the valve side opening 31b are used as the pressure release flow path, and a dedicated configuration such as a pressure release pipe or a valve is not required separately. Therefore, even if the valve device 10 is capable of depressurizing the inside of the gas tank 11, the cost increase can be suppressed, the size is not increased, and the mountability of the valve device 10 is not deteriorated.

(2) When the mounting member 38 is positioned at the mounting release position T2 and the sleeve 41 is moved away from the body 20, the fixed core 47 is separated from the movable core 49, and the urging force of the urging member 50 can be released. As a result, the valve body 51 can be separated from the valve seat 26 and positioned at the degassing position K3 by the pressure of the gas in the gas tank 11. Therefore, even if the valve body 51 is configured to be urged by the urging member 50, the valve body 51 can be positioned at the degassing position K3.

(3) The mounting member 38 has a male screw screwed into the large-diameter hole 21b of the body 20, and also has a nut-side regulating portion 38a that comes into contact with the sleeve-side regulating portion 43. Then, when the mounting member 38 is screwed into the large diameter hole 21b, the nut side regulating portion 38a comes into contact with the sleeve side regulating portion 43, and the sleeve 41 can be mounted on the body 20. On the contrary, when the mounting member 38 is screwed back from the large diameter hole 21b and positioned at the mounting release position T2, the contact of the nut side regulation portion 38a with the sleeve side regulation portion 43 is released, and the valve body 51 opens the valve side opening. It becomes possible to position 31b at the opening position. Therefore, with a simple configuration such as a nut-shaped mounting member 38, the valve-side opening 31b can be opened by the valve body 51, and the gas in 11 can be discharged to the outside through the valve-side opening 31b.

(4) The first flow path A1 and the second flow path A2 are connected in the valve chamber S. The valve chamber S is located between the inside of the gas tank 11 and the valve seat 26. That is, the valve chamber S is located closer to the inside of the gas tank 11 than the valve seat 26, which is the opening / closing position of the gas flow path 30. Therefore, it is always the pressure of the gas tank 11 that acts on the valve chamber S, and the change in the pressure is small. Therefore, each time the gas is filled and the gas is supplied, the load due to the pressure fluctuation generated at the intersection A can be suppressed to a small value, and the adverse effect of the pressure resistant fatigue life on the gas flow path 30 is suppressed.

(5) The amount of screwing back of the mounting member 38 for locating the mounting member 38 from the mounting position T1 to the mounting release position T2 is preset. The amount of screwing back of the mounting member 38 is set at a position where the sleeve-side regulating portion 43 comes into contact with the nut-side regulating portion 38a before the sealing member 46 comes out of the small-diameter hole 21a when the sleeve 41 is moved. Therefore, in order to release the pressure inside the gas tank 11, even if the mounting member 38 is moved to the mounting release position T2, the sleeve 41 does not come off from the body 20 and the gas is prevented from coming out from the first mounting hole 21. It is easy to attach the sleeve 41 to the body 20 after depressurizing.

(6) When the mounting member 38 is positioned at the mounting release position T2 and the sleeve 41 is moved away from the body 20, the sleeve-side regulating portion 43 is brought into contact with the nut-side regulating portion 38a, and the movement of the sleeve 41 can be restricted. .. Therefore, it is possible to prevent the sleeve 41 from passing through the mounting member 38 and coming off the body 20.

(7) A nut-side restricting portion 38a is recessed in the inner peripheral portion of the mounting member 38. For example, when the mounting member 38 has a nut shape without the nut side regulating portion 38a and the sleeve side regulating portion 43 is brought into contact with the end surface of the mounting member 38 located at the mounting release position T2 to restrict the movement of the sleeve 41. As compared with the above, the amount of protrusion of the mounting member 38 from the body 20 can be reduced, which can contribute to the miniaturization of the valve device 10.

(8) The mounting member 38 includes a flange 39, and the flange 39 comes into contact with the front end surface 20a of the body 20 at the mounting position T1. By bringing the flange 39 into contact with the front end surface 20a of the body 20, it is possible to prevent the tip end portion of the valve body 51 from entering the valve hole 31a too much, and the seal portion 53 can be arranged at a position seated on the valve seat 26.

(9) The fixed iron core 47 of the solenoid valve 40 includes a shaft portion 47b penetrating the sleeve 41, and the shaft portion 47b penetrates the cover 58. A nut 63 is screwed into the shaft portion 47b penetrating the cover 58, and the cover 58 can be integrated with the solenoid valve 40 by screwing the nut 63 into the shaft portion 47b. Further, the solenoid 55 is integrated with the cover 58. Therefore, when the nut 63 is screwed back from the shaft portion 47b, the cover 58 and the solenoid 55 can be removed from the sleeve 41, and the work of moving the mounting member 38 from the mounting position T1 to the mounting release position T2 becomes possible.

Further, since the cover 58 and the solenoid 55 are integrated, the solenoid 55 can be removed from the sleeve 41 at the same time as the cover 58 is removed from the sleeve 41. For example, the work can be reduced as compared with the case where the cover 58 is removed from the sleeve 41 and then the solenoid 55 is removed from the sleeve 41.

This embodiment can be modified and implemented as follows. The present embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
In the gas flow path 30, the flow path connecting the valve side opening 31b and the valve chamber S is the second flow path, and the flow path connecting the guide hole 23a opened by the tank side opening 33b and the valve chamber S is the first flow path. It may be a road. Then, a valve seat 26 may be formed around the first end of the flow path connecting the guide hole 23a and the valve chamber S, and the valve seat 26 may be arranged closer to the first flow path side than the intersection A.

The mounting member 38 is mounted on the body 20 by being press-fitted into the large diameter hole 21b of the first mounting hole 21 to take the mounting position T1, and is removed from the body 20 to take the mounting release position T2. good.

-The male screw of the mounting member 38 is omitted, and a protrusion protruding in the radial direction from the outer peripheral surface of the mounting member 38 is formed. Further, the female screw of the large-diameter hole 21b is omitted, and a groove into which the protrusion enters is formed in a part of the inner peripheral surface of the large-diameter hole 21b. This groove has a circumferential groove extending in the circumferential direction of the large-diameter hole 21b and an axial groove extending in the vehicle front-rear direction X from one end of the circumferential groove, and is viewed from the inside of the large-diameter hole 21b in the radial direction. It is L-shaped. In this configuration, at the mounting position T1 of the mounting member 38, the protrusion is located at the other end of the circumferential groove. When the mounting member 38 is positioned at the mounting release position T2, the mounting member 38 is rotated to move to one end of the circumferential groove, and further, the mounting member 38 is moved along the axial groove. Even in this way, the mounting member 38 can be configured to have the mounting position T1 and the mounting / dismounting position T2 while mounting the mounting member 38 to the body 20.

The valve device 10 may appropriately change the mounting direction on the vehicle body F as long as the operation unit 74 of the manual valve 70 can be manually operated.
A safety valve or other piping may be connected to the front end surface 20a or the rear end surface 20b of the body 20.

A plurality of pipes may be connected to the valve side opening 31b via a branch joint.
The valve body 51 may be formed on a part of the movable iron core 49.
The valve device 10 may be mounted on the fuel cell vehicle V so that the first direction of the body 20 is the vehicle left-right direction and the second direction is the vehicle front-rear direction.

The valve device 10 may be mounted on the fuel cell vehicle V so that the solenoid valve 40 is mounted on the rear end surface 20b of the body 20 and the joint 24 is mounted on the front end surface 20a of the body 20.

-Although hydrogen gas is described as the gas, it may be a gas other than hydrogen (for example, methane, propane, LPG) or a natural gas.

A ... Intersection A1 ... 1st flow path A2 ... 2nd flow path K1 ... Valve closing position K2 ... Valve opening position T1 ... Mounting position T2 ... Mounting release position 11 ... Gas tank as tank 20 ... Body 21 ... As mounting hole First mounting hole 26 ... Valve seat 30 ... Gas flow path 31b ... Valve side opening 33b ... Tank side opening 38 ... Mounting member 38a ... Nut side regulating part 40 ... Solenoid valve 41 ... Sleeve 41b ... First end 41c ... First 2 ends 43 ... Sleeve side regulation part 44 ... Sleeve body 47 ... Fixed core 49 ... Movable core 50 ... Biasing member 51 ... Valve body

Claims (4)

A body having a gas flow path that communicates a tank-side opening that opens toward the inside of the tank and a valve-side opening that opens toward the outside.
A solenoid valve mounted on the body that opens the gas flow path at the valve open position and closes the gas flow path at the valve closed position.
It has a mounting member for mounting the solenoid valve on the body, and has.
The solenoid valve has a sleeve, a movable iron core that slides in the sleeve along the axial direction of the sleeve, and moves in the sleeve by the operation of the movable iron core to reach the valve opening position or the valve closing position. With a valve body located,
The mounting member attaches the solenoid valve to the body, and positions the sleeve with respect to the body so that the valve body is located at a position where the valve can be opened or closed. The mounting position to be regulated and mounted,
A valve device characterized in that it can take a mounting / dismounting position that allows the sleeve to be moved so that the valve body is located at a position that opens the gas flow path. The solenoid valve is arranged between a fixed core fixed inside the sleeve and the fixed core and the movable iron core in the axial direction of the sleeve, and the valve body is placed in the valve closed position at the mounting position. The valve device according to claim 1, wherein the valve device has an urging member and the mounting release position is a position where the urging of the valve body is released by the urging member. The body has a mounting hole into which the first end in the axial direction of the sleeve is inserted, and the mounting hole is a female screw hole having a female screw on a part of the inner peripheral surface.
The sleeve has a sleeve-side restricting portion that protrudes radially from the outer peripheral surface on the second end side of the sleeve from the first end, and has a sleeve body on the second end side of the sleeve-side restricting portion. death,
The mounting member has an annular shape into which the sleeve body is inserted, has a male screw screwed into the mounting hole on the outer peripheral surface, and has a nut-side regulating portion that contacts the sleeve-side regulating portion at the mounting position. The valve device according to claim 1 or 2. The gas flow path includes a first flow path that is upstream when the tank is filled with gas, and a second flow path that is downstream of the first flow path, and the first flow path and the above. The second flow path has an intersection where the second flow paths intersect with each other, and the gas flow path takes the valve opening position when the gas is filled and the valve closing position when the gas filling is completed. Any one of claims 1 to 3 in which the solenoid valve is arranged and the valve seat to which the valve body is brought into contact with and detached is arranged in the first flow path which is on the anti-second flow path side of the intersection. The valve device according to one item.

Images