Gas-liquid separator

Abstract

To provide a technique for reducing a pressure loss of an off-gas from a lead-in port to a lead-out port in a gas-liquid separator.SOLUTION: A gas-liquid separator comprises: a case; a lead-in port which is provided in the case and through which an off-gas containing moisture is led into the case; a strainer which is formed in a bottomed cylindrical shape, of which the upper opening communicates to the lead-in port inside of the case and which passes the off-gas led in from the lead-in port in a direction across an axial direction and removes a foreign substance from the off-gas; and a lead-out port which is opened at a position overlapped with the strainer in the same space as the strainer and in a direction orthogonal with the axial direction inside of the case and leads the off-gas passing the strainer out of the case.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to a gas-liquid separator. [Background technology]

[0002] Patent Document 1 discloses a gas-liquid separator for a fuel cell. This gas-liquid separator is a device that separates moisture contained in off-gas, and includes a case, an inlet for introducing moisture-containing off-gas into the case, an outlet for discharging the off-gas introduced into the case to the outside of the case, and a strainer connected to the inlet inside the case and removing impurities from the off-gas. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2022-107947 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the gas-liquid separator of Patent Document 1, the space within the case is divided by a partition into a space in which the strainer is disposed and a space in which the outlet is disposed, leaving room for improvement in the pressure loss of the off-gas from the inlet to the outlet.

[0005] An object of the present disclosure is to provide a technique for reducing the pressure loss of off-gas from an inlet to an outlet in a gas-liquid separator. [Means for solving the problem]

[0006] A gas-liquid separator of a first aspect of the present disclosure comprises a case, an inlet provided in the case for introducing moisture-containing off-gas into the case, a strainer which is cylindrical with a bottom and has an upper opening within the case connected to the inlet, allows the off-gas introduced from the inlet to pass in a direction intersecting an axial direction and removes foreign matter from the off-gas, and an outlet which opens in the same space as the strainer within the case and at a position overlapping with the strainer in a direction perpendicular to the axial direction, and uses the off-gas that has passed through the strainer to be discharged from within the case.

[0007] In the gas-liquid separator of the first embodiment, off-gas is introduced into the strainer through an inlet. The off-gas introduced into the strainer passes through the strainer in a direction intersecting the axial direction, and foreign matter is removed during the passage. The off-gas that has passed through the strainer is then discharged from inside the case through an outlet that opens in the same space as the strainer and at a position overlapping the strainer in a direction perpendicular to the axial direction of the strainer.

[0008] In the above-mentioned gas-liquid separator, the off-gas that has passed through the strainer opens in the same space as the strainer and at a position that overlaps with the strainer in a direction perpendicular to the axial direction of the strainer. This reduces the pressure loss as the off-gas passes from the inlet through the strainer to the outlet, compared to, for example, a configuration in which the strainer and the outlet opening are provided in separate spaces within the case, or a configuration in which the outlet opening is positioned at a position offset from the strainer in a direction perpendicular to the axial direction of the strainer within the case.

[0009] A second aspect of the gas-liquid separator of the present disclosure is the gas-liquid separator of the first aspect, wherein the strainer has a bottom arranged opposite the inlet, a cylindrical filter supported by the bottom and communicating with the inlet, and support parts spaced apart circumferentially of the filter, extending from the bottom to the inlet, and supporting the filter, and one of the multiple support parts is arranged in a position opposite the opening of the outlet.

[0010] In the second embodiment of the gas-liquid separator, one of the multiple support parts is positioned opposite the opening in the outlet case, thereby preventing moisture (water droplets) scattering from the strainer from entering the outlet.

[0011] A gas-liquid separator according to a third aspect of the present disclosure is the gas-liquid separator according to the second aspect, wherein, among the plurality of support portions, the support portion facing the opening of the outlet has a width greater than the widths of the other support portions.

[0012] In the gas-liquid separator of the third aspect, the width of the support portion facing the opening of the outlet in the case is made wider than the width of the other support portions, thereby ensuring the effect of suppressing moisture from entering the outlet while ensuring the passage area of ​​the off-gas in the filter.

[0013] A gas-liquid separator according to a fourth aspect of the present disclosure is the gas-liquid separator according to the second or third aspect, wherein a width of the support portion facing the opening of the outlet is larger than a radius of the opening of the outlet.

[0014] In the gas-liquid separator of the fourth aspect, the width of the support part facing the opening of the outlet in the case is made larger than the radius of the outlet opening, thereby improving the effect of suppressing moisture from entering the outlet.

[0015] A gas-liquid separator according to a fifth aspect of the present disclosure is the gas-liquid separator according to any one of the first to fourth aspects, wherein two of the support portions are provided at equal intervals in the circumferential direction of the filter.

[0016] In the gas-liquid separator of the fifth aspect, two support parts are provided at equal intervals around the circumferential direction of the filter, so that the off-gas can pass evenly between the two support parts in the filter while ensuring the passage area of ​​the off-gas in the filter.

[0017] A gas-liquid separator of a sixth aspect of the present disclosure is a gas-liquid separator of any one of the first to fifth aspects, wherein the case has a case body with an open top and a cap attached to the top of the case body, and the inlet and the strainer are provided in the cap.

[0018] In the gas-liquid separator of the sixth aspect, the inlet and strainer are provided in the cap, so that the structure of the case body can be simplified compared to, for example, a configuration in which the case body is provided with an inlet, strainer and outlet.

[0019] A gas-liquid separator according to a seventh aspect of the present disclosure is the gas-liquid separator according to the sixth aspect, wherein the inlet and the strainer are integral with the cap.

[0020] In the gas-liquid separator of the seventh aspect, since the inlet and the strainer are integrated with the cap, the number of components of the gas-liquid separator can be reduced compared to a configuration in which the inlet and the strainer are separate from the cap, and this simplifies the assembly work of the gas-liquid separator.

[0021] A gas-liquid separator according to an eighth aspect of the present disclosure is the gas-liquid separator according to the sixth or seventh aspect, wherein the outlet is provided in the case body.

[0022] In the gas-liquid separator of the eighth aspect, since the outlet is provided in the case body, the structure of the cap can be simplified compared to, for example, a configuration in which an inlet, a strainer, and an outlet are provided in the cap.

[0023] A gas-liquid separator according to a ninth aspect of the present disclosure is the gas-liquid separator according to any one of the first to eighth aspects, wherein the outlet in the case protrudes from an inner surface of the case.

[0024] In the gas-liquid separator of the ninth aspect, the outlet protrudes from the inner surface of the case within the case, and therefore, compared to, for example, a configuration in which the outlet opens to the inner surface of the case, it is possible to prevent moisture (water droplets) adhering to the inner surface of the case from entering the outlet.

[0025] A gas-liquid separator according to a tenth aspect of the present disclosure is a gas-liquid separator according to any one of the first to ninth aspects, wherein an outlet is provided below the strainer in the case, for discharging moisture separated from the off-gas from within the case.

[0026] In the gas-liquid separator of the tenth aspect, the discharge port is provided below the strainer, so that moisture (water droplets) scattering from the strainer can be smoothly discharged from the discharge port.

[0027] A gas-liquid separator according to an eleventh aspect of the present disclosure is the gas-liquid separator according to any one of the first to tenth aspects, wherein the off-gas is an off-gas discharged from a cell stack of a fuel cell.

[0028] In the gas-liquid separator of the eleventh aspect, moisture can be separated from the off-gas discharged from the cell stack of the fuel cell. In addition, the pressure loss of the off-gas from the inlet through the strainer to the outlet is reduced, thereby improving the recovery rate of the off-gas. Effect of the Invention

[0029] According to the present disclosure, the pressure loss of the off-gas from the inlet to the outlet can be reduced. [Brief description of the drawings]

[0030] [Figure 1] FIG. 1 is a schematic diagram showing a general configuration of a fuel cell using a gas-liquid separator according to an embodiment of the present disclosure. [Diagram 2] FIG. 2 is an exploded perspective view of a gas-liquid separator according to an embodiment of the present disclosure. [Diagram 3] FIG. 3 is a plan view of the gas-liquid separator shown in FIG. 2. [Figure 4] FIG. 4 is a cross-sectional view taken along line AA in FIG. [Diagram 5] 5 is a cross-sectional view taken along line BB in FIG. 4. [Figure 6] FIG. 2 is a perspective view of a cap of the gas-liquid separator. [Figure 7] 7 is a diagram showing the cap shown in FIG. 6 as viewed from the back side. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0031] Hereinafter, the embodiment for carrying out the present disclosure will be described based on the drawings. Components indicated by the same reference numerals in each drawing are the same or similar components. Note that duplicated explanations and reference numerals in the embodiments described below may be omitted. In addition, all drawings used in the following description are schematic, and the dimensional relationship of each element, the ratio of each element, etc. shown in the drawings do not necessarily match the actual ones. In addition, the dimensional relationship of each element, the ratio of each element, etc. between multiple drawings do not necessarily match.

[0032] 1, the gas-liquid separator 20 of this embodiment is a device having a function of separating liquid from gas. Specifically, the gas-liquid separator 20 is used in a fuel cell 100 to separate moisture contained in hydrogen off-gas. First, the configuration of the fuel cell 100 in which the gas-liquid separator 20 is used will be described below.

[0033] As shown in FIG. 1, the fuel cell 100 includes a cell stack 110, an air path 120, and a hydrogen path .

[0034] The cell stack 110 is a power generating section having a power generating function, which is configured by stacking a plurality of unit cells (not shown).

[0035] The air path 120 is a path that supplies air as an oxidant gas to the cathode electrode of the cell stack 110. The air path 120 has an air supply passage 122 and an air discharge passage 124. The air supply passage 122 is a passage that supplies air to the cell stack 110. The air discharge passage 124 is a passage that discharges air off-gas, which is a mixture of air and generated water, from the cell stack 110.

[0036] The hydrogen path 130 is a path that supplies hydrogen gas as a fuel gas to the anode electrode of the cell stack 110. The hydrogen path 130 has a hydrogen supply passage 132, a hydrogen discharge passage 138, and a circulation passage 140.

[0037] The hydrogen supply passage 132 has one end connected to the cell stack 110 and the other end connected to the hydrogen tank 134. This hydrogen supply passage 132 is a passage that supplies hydrogen gas from the hydrogen tank 134 to the cell stack 110. A flow rate control valve 136 is provided in the middle of the hydrogen supply passage 132. The flow rate control valve 136 adjusts the amount of hydrogen gas supplied from the hydrogen tank 134 to the cell stack 110. The hydrogen discharge passage 138 is a passage that discharges hydrogen off-gas, which is a mixture of excess hydrogen gas that has not reacted in the cell stack 110 and generated water. The hydrogen discharge passage 138 has one end connected to the cell stack 110 and the other end connected to the gas-liquid separator 20.

[0038] One end of the circulation passage 140 is connected to the gas-liquid separator 20, and the other end is connected to the hydrogen supply passage 132. The gas-liquid separator 20 separates moisture from the hydrogen off-gas introduced from the hydrogen discharge passage 138. A circulation pump 142 is provided in the middle of the circulation passage 140. By driving the circulation pump 142, the off-gas from which moisture has been separated in the gas-liquid separator 20 is returned to the hydrogen supply passage 132. In this way, surplus hydrogen gas that has not reacted in the cell stack 110 is circulated to the cell stack 110.

[0039] Next, the gas-liquid separator 20 will be described in detail. As shown in FIGS. 2 and 4, the gas-liquid separator 20 includes a case 22, an inlet 30, a strainer 40, and an outlet 50.

[0040] (Case 22) 2 and 4, the case 22 is a component having a function of separating moisture from the off-gas containing moisture therein. The case 22 has a case body 24 and a cap 26.

[0041] The case body 24 is a box-shaped member with an open top. The case body 24 has a peripheral wall 24A and a bottom 24B. The case body 24 is made of, for example, a resin material.

[0042] The cap 26 is a member that closes the upper opening 24C of the case body 24. The cap 26 has a closing portion 26A, a flange portion 26B, and an O-ring 26C. The closing portion 26A is a portion of the cap 26 that is fitted into the upper opening 24C to close the upper opening 24C. The flange portion 26B is a portion of the cap 26 that protrudes from the outer periphery of the closing portion 26A. The O-ring 26C is a member that is fitted into a circumferential groove provided in the closing portion 26A to seal between the inner surface of the upper opening 24C and the closing portion 26A. The cap 26 is formed of, for example, a resin material.

[0043] (Inlet 30) As shown in FIGS. 2 to 4, the inlet 30 is provided in the case 22 and is a cylindrical inlet for introducing moisture-containing off-gas into the case 22. In this embodiment, the hydrogen discharge passage 138 is connected to the inlet 30, and hydrogen off-gas passing through the hydrogen discharge passage 138 is introduced into the case 22 through the inlet 30. The inlet 30 in this embodiment is provided in the cap 26. Specifically, the inlet 30 is provided in the closed portion 26A of the cap 26. The inlet 30 is integral with the cap 26. In other words, the inlet 30 is formed by integral molding with the cap 26.

[0044] (Strainer 40) As shown in Figs. 4 to 6, the strainer 40 is a bottomed tubular member, and its upper opening is connected to the inlet 30 in the case 22. The strainer 40 has a function of passing moisture-containing off-gas (hydrogen off-gas in this embodiment) introduced from the inlet 30 in a direction intersecting the axial direction and removing foreign matter from the off-gas. The strainer 40 in this embodiment is provided in the cap 26. Specifically, the strainer 40 is provided in the closing portion 26A of the cap 26 so as to be located in the case body 24 when the cap 26 is attached to the case body 24. The strainer 40 is also integrated with the cap 26. In other words, a bottom portion 42 and a support portion 46 of the strainer 40, which will be described later, are formed integrally with the cap 26. The strainer 40 has a bottom portion 42, a filter 44, and a support portion 46.

[0045] The bottom portion 42 is disposed opposite the inlet 30 of the strainer 40. The bottom portion 42 is formed in a disk shape.

[0046] The filter 44 is formed in a cylindrical shape and is supported by the bottom portion 42. The inside of the filter 44 is in communication with the inside of the inlet 30. The filter 44 is, for example, a metal mesh, and is formed in a cylindrical shape.

[0047] The support parts 46 are provided at intervals in the circumferential direction of the filter 44, extend from the bottom part 42 to the inlet 30, and support the filter 44. The shape of the filter 44 is maintained by these support parts 46. In the present embodiment, as an example, two support parts 46 are provided at equal intervals in the circumferential direction of the filter 44.

[0048] (Outlet port 50) 2 and 4, the outlet 50 is a cylindrical outlet that opens in the same space as the strainer 40 in the case 22 and at a position overlapping the strainer 40 in a direction perpendicular to the axial direction of the strainer 40, and that discharges the off-gas that has passed through the strainer 40 from inside the case 22. The outlet 50 in this embodiment is provided in the case body 24 and protrudes from the inner surface 24D of the case body 24. Specifically, the case body 24 is provided with a through hole 25, and the outlet 50 is formed by a cylindrical member 52 that penetrates the through hole 25. A groove is formed on the outer periphery of the cylindrical member 52, and an O-ring 54 is fitted into the groove. The O-ring 54 seals the space between the cylindrical member 52 and the case body 24.

[0049] In this embodiment, one of the multiple support parts 46 is disposed at a position facing the opening 50A of the outlet 50 in the case 22. Specifically, the opening 50A of the outlet 50 opens at a position overlapping the support part 46 in a direction perpendicular to the axial direction of the strainer 40. In addition, in this embodiment, as shown in FIG. 7, the width W1 of the support part 46 facing the opening 50A of the outlet 50 is wider than the width W2 of the other support parts 46 in the multiple support parts 46. Furthermore, as shown in FIG. 5 and FIG. 7, the width W1 of the support part 46 facing the opening 50A of the outlet 50 is larger than the radius r of the opening 50A of the outlet 50. In addition, in FIG. 4 and FIG. 7, the support part 46 facing the opening 50A of the outlet 50 is indicated by the symbol 46A, and the other support parts 46 are indicated by the symbol 46B. The outlet 50 is connected to the circulation passage 140 shown in FIG. 1. Here, the pipes constituting the circulation passage 140 are indicated by reference numeral 141 in FIGS.

[0050] 2 and 4, the gas-liquid separator 20 has an outlet 60. The outlet 60 is a cylindrical outlet that discharges moisture separated from the off-gas from inside the case 22. The outlet 60 in this embodiment is provided in the case body 24. Specifically, the outlet 60 is provided in the bottom 24B of the case body 24. The outlet 60 in this embodiment is provided below the strainer 40 of the case 22. As shown in FIG. 1, a discharge path is connected to the outlet 60, and liquid (e.g., water) is discharged through this discharge path to the liquid tank 146. That is, the moisture separated from the off-gas by the gas-liquid separator 20 is stored in the liquid tank 146 through the outlet 60. A discharge valve 144 is provided in the middle of the discharge path. This discharge valve 144 is opened when a predetermined amount of moisture is stored in the gas-liquid separator 20.

[0051] Next, the effects of this embodiment will be described. In the gas-liquid separator 20 of this embodiment, off-gas containing moisture (hydrogen off-gas) is introduced into the strainer 40 through the inlet 30. The off-gas introduced into the strainer 40 passes through the strainer 40 in a direction intersecting the axial direction, and foreign matter is removed during the passage. The off-gas introduced into the strainer 40 flows along the axial direction within the strainer 40, but when it hits the bottom 24B, the flow changes to a direction intersecting the axial direction (including a direction perpendicular to the axial direction), and passes through the strainer 40 in a direction intersecting the axial direction. The off-gas that has passed through the strainer 40 is then discharged from the case 22 through the outlet 50 that opens in the same space as the strainer 40 and at a position that overlaps with the strainer 40 in a direction perpendicular to the axial direction of the strainer 40.

[0052] Here, in the gas-liquid separator 20, the off-gas that has passed through the strainer 40 is opened in the same space as the strainer 40 and at a position overlapping the strainer 40 in a direction perpendicular to the axial direction of the strainer 40. Therefore, compared with a configuration in which the strainer 40 and the opening of the outlet 50 are provided in separate spaces in the case 22, or a configuration in which the opening 50A of the outlet 50 is disposed at a position shifted from the strainer 40 in a direction perpendicular to the axial direction of the strainer 40 in the case 22, the pressure loss of the off-gas passing from the inlet 30 through the strainer 40 to the outlet 50 can be reduced. In this way, the gas-liquid separator 20 can reduce the pressure loss of the off-gas, improving the fuel efficiency of the fuel cell 100 that uses the gas-liquid separator 20. That is, by using the gas-liquid separator 20 of this embodiment, it is possible to improve the fuel efficiency of the device in which it is incorporated, thereby contributing to environmental issues.

[0053] Furthermore, in the gas-liquid separator 20, one of the multiple support parts 46 (support part 46A) is disposed in a position facing the opening 50A of the outlet 50, thereby making it possible to prevent moisture (water droplets) scattering from the strainer 40 from entering the outlet 50. In other words, in the gas-liquid separator 20, the support part 46 is disposed in a position facing the opening 50A of the outlet 50, thereby controlling the scattering direction of the moisture scattering from the strainer 40.

[0054] Furthermore, in the gas-liquid separator 20, among the multiple support parts 46, the width W1 of the support part 46 facing the opening 50A of the outlet 50 is made wider than the width W2 of the other support parts 46, thereby ensuring the effect of suppressing the intrusion of moisture into the outlet 50 while ensuring the passage area for off-gas in the filter 44.

[0055] In addition, in the gas-liquid separator 20, the width W1 of the support portion 46 facing the opening 50A of the outlet 50 is made larger than the radius r of the opening 50A, thereby improving the effect of suppressing moisture from entering the outlet 50.

[0056] Furthermore, in the gas-liquid separator 20, the two support parts 46 (support parts 46A and 46B) are provided at equal intervals in the circumferential direction of the filter 44, so that the off-gas can pass evenly between the two support parts 46 in the filter 44 while ensuring the passage area of ​​the off-gas in the filter 44. This makes it possible to further reduce the pressure loss of the off-gas.

[0057] Furthermore, in the gas-liquid separator 20, since the inlet 30 and the strainer 40 are provided in the cap 26, the structure of the case body 24 can be simplified compared to a configuration in which, for example, the case body 24 is provided with the inlet 30, the strainer 40 and the outlet 50.

[0058] In addition, in the gas-liquid separator 20, since the inlet 30 and the strainer 40 are integrated with the cap 26, the number of components of the gas-liquid separator 20 can be reduced compared to a configuration in which the inlet 30 and the strainer 40 are separate from the cap 26. This simplifies the assembly work of the gas-liquid separator 20.

[0059] Furthermore, in the gas-liquid separator 20, since the outlet 50 is provided in the case body 24, the structure of the cap 26 can be simplified compared to a configuration in which, for example, the inlet 30, the strainer 40 and the outlet 50 are provided in the cap 26.

[0060] Furthermore, in the gas-liquid separator 20, the outlet 50 protrudes from the inner surface 24D of the case 22 within the case 22, and therefore, compared to a configuration in which the outlet 50 opens to the inner surface of the case, for example, it is possible to prevent moisture (water droplets) adhering to the inner surface of the case 22 from entering the outlet 50.

[0061] Furthermore, in the gas-liquid separator 20, the discharge port 60 is provided below the strainer 40, so that the moisture (water droplets) scattering from the strainer 40 can be discharged from the discharge port 60 smoothly.

[0062] (Other embodiments) In the gas-liquid separator 20 of the above-described embodiment, the separate outlet 50 is assembled to the case body 24, but the present disclosure is not limited to this configuration. For example, the outlet 50 and the case body 24 may be integrally molded. In this case, the number of components of the gas-liquid separator 20 can be reduced.

[0063] In the embodiment described above, the strainer 40 is supported by the case body 24 via the cap 26, but the present disclosure is not limited to this configuration. For example, a recess may be provided on the underside of the bottom of the strainer 40, and a protrusion may be provided on the bottom of the case body 24, and the lower part of the strainer 40 may be supported and the strainer 40 may be positioned by fitting the protrusion and the recess. In this case, the support portion 46A of the strainer 40 can be easily positioned in a position facing the opening 50A of the outlet 50.

[0064] In the above-described embodiment, the cell stack 110 and the gas-liquid separator 20 are connected via the hydrogen discharge passage 138, but the present disclosure is not limited to this configuration. For example, the cap 26 of the gas-liquid separator 20 may be formed integrally with the hydrogen discharge port of the cell stack 110. Specifically, the cap 26 may be insert-molded into the cell stack 110, which is the mating member, using a method such as aluminum die casting, and the hydrogen discharge port and the inlet 30 may be connected. In this case, the hydrogen discharge passage 138 can be omitted, thereby reducing the number of parts of the fuel cell 100. In addition, since hydrogen off-gas can be directly introduced into the inlet 30, efficient gas-liquid separation is possible.

[0065] While one embodiment of the present disclosure has been described above, the present disclosure is not limited to the above, and it goes without saying that the present disclosure can be implemented in various other modified forms without departing from the spirit and scope of the present disclosure. [Explanation of symbols]

[0066] 20 Gas-liquid separator 22 cases 24 Case body 25 Through hole 26 Cap 26A Occlusion 26B Flange part 26C O-ring 30 Introduction 40 Strainer 42 Bottom 44 Filters 46 Support part 50 Outlet 50A aperture 52 Cylinder Part 54 O-ring 60 Outlet 100 fuel cell 110 Cell Stack W1 width W2 Width

Claims

1. Case and an inlet provided in the case for introducing moisture-containing off-gas into the case; a strainer having a bottomed cylindrical shape, an upper opening of which is connected to the inlet within the case, the strainer allowing the off-gas introduced from the inlet to pass in a direction intersecting the axial direction and removing foreign matter from the off-gas; an outlet opening that opens in the case in the same space as the strainer and at a position that overlaps with the strainer in a direction perpendicular to the axial direction, and that discharges the off-gas that has passed through the strainer from inside the case; A gas-liquid separator comprising:

2. The strainer is A bottom portion disposed opposite the inlet; and a cylindrical filter supported on the bottom and communicating with the inlet; a support portion that is provided at intervals in a circumferential direction of the filter, extends from the bottom portion to the inlet, and supports the filter; having The gas-liquid separator according to claim 1 , wherein one of the plurality of support portions is disposed at a position facing the opening of the outlet port.

3. 3. The gas-liquid separator according to claim 2, wherein, of the plurality of support portions, a width of the support portion facing the opening of the outlet port is wider than a width of the other support portions.

4. The gas-liquid separator according to claim 2 , wherein a width of the support portion facing the opening of the outlet is larger than a radius of the opening of the outlet.

5. The gas-liquid separator according to claim 2 , wherein two of the support portions are provided at equal intervals in the circumferential direction of the filter.

6. The case has a case body with an open top and a cap attached to an upper part of the case body, The gas-liquid separator according to claim 1 , wherein the inlet and the strainer are provided in the cap.

7. 7. The gas-liquid separator of claim 6, wherein the inlet and the strainer are integral with the cap.

8. The gas-liquid separator according to claim 6 , wherein the outlet is provided in the case body.

9. The gas-liquid separator according to claim 1 , wherein the outlet port protrudes from an inner surface of the case.

10. 2. The gas-liquid separator according to claim 1, wherein the case is provided below the strainer with an outlet for discharging moisture separated from the off-gas from inside the case.

11. 2. The gas-liquid separator according to claim 1, wherein the off-gas is exhausted from a cell stack of a fuel cell.

Images