JP6975955B2 - Accumulator and fluid discharge system - Google Patents

Description

The present invention relates to an accumulator and a fluid discharge system that are attached to a pipe and store liquid.

Mainly in the automobile industry, high-pressure pumps are used to supply ultra-high viscosity liquids such as sealing materials to dispensers. Due to the characteristics of the high-pressure pump, it is inevitable that pulsation will occur in the discharged ultra-high viscosity liquid. Therefore, an accumulator is provided in front of the dispenser, and the accumulator temporarily stores the ultra-high viscosity liquid to convert the pulsating flow at high pressure into a constant flow at low pressure. Further, when the accumulator is provided, the liquid supplied from the high-pressure pump may be discharged directly from the accumulator without using a dispenser.

Conventionally, there is known an accumulator having a configuration in which a pipe is connected to a communication portion of a casing and a piston urged by a spring is arranged in the casing (see, for example, Patent Document 1). In the accumulator of this configuration, if the hydraulic pressure in the pipe rises, the liquid is collected in the casing against the urging force of the spring, and conversely, if the hydraulic pressure in the pipe drops, the urging force of the spring causes the piston. Is moved, and the liquid contained in the casing is discharged.

Another accumulator is the so-called "first-in, first-out method" in which an inlet and an outlet are formed in a cylindrical cylinder body, and the liquid flowing into the cylinder body from the inlet is pressed by a piston and discharged from the outlet. Is known (see, for example, Patent Document 2).

Japanese Unexamined Patent Publication No. 2004-249243 Japanese Unexamined Patent Publication No. 63-41688

However, in the former accumulator, the liquid collected in the casing is discharged in the reverse order of collection instead of the order of collection, which is a so-called "first-in / second-out method". Therefore, the liquid recovered earlier may stay in the casing for a long period of time, which may cause various problems depending on the type of liquid. For example, if the liquid is a moisture-curable adhesive, it may solidify in the casing and cause malfunction of the spring, making the accumulator unusable. If the liquid is for food use, if it stays in the casing for a long period of time, it may cause hygienic problems due to deterioration or deterioration.

Further, in the latter accumulator, the inflow port is formed in the upper part of the outer peripheral wall of the cylinder body. The liquid collected from this inlet is more likely to flow in the axial direction of the cylinder body, that is, to the outlet diagonally forward than in the radial direction of the cylinder body. Therefore, the liquid tends to stay in the opposite portion of the inflow port, that is, in the vicinity of the inner peripheral surface on the lower side of the cylinder body. Therefore, the same problem as the former accumulator may occur.

Therefore, it is an object of the present invention to provide an accumulator and a fluid discharge system capable of reliably discharging the recovered liquid (fluid) by a first-in first-out method without staying.

The present invention provides means for solving the above problems.
Equipped with a housing with a temporary storage space configured to change the internal volume in the axial direction
The housing is
A supply port and a discharge port that are formed at positions separated from each other in the axial direction and communicate with the temporary storage space.
A flow path that evenly supplies fluid to the temporary storage space through the supply port,
Provided is an accumulator characterized by having.

With this configuration, the fluid flowing in through the supply port is evenly supplied to the temporary storage space by the flow path. Therefore, the fluid does not stay in a part of the temporary storage space. In addition, since the temporary storage space is configured so that the internal volume can be changed in the axial direction, and the supply port and the discharge port are arranged apart from each other in the axial direction, the fluid flows from the supply port into the temporary storage space. It is discharged from the discharge port in the order of inflow by the first-in first-out method.

The flow path preferably includes a plurality of internal flow paths formed in the housing.

With this configuration, the protruding portion from the housing can be suppressed to make it compact.

A hole arranged inside the housing and extending evenly along the inner surface of the housing from a position facing the supply port to guide the fluid branched by the wall portion to the temporary storage space side. Equipped with a partition member that forms a part,
The internal flow path is preferably composed of an inner surface of the housing and an outer surface of the wall portion of the partition member.

With this configuration, the internal flow path can be formed with a simple configuration in which the partition member is housed in the housing.

A cylinder is provided so as to be reciprocating in the axial direction.
It is preferable that an annular space connecting the internal flow path and the temporary storage space is formed between the outer peripheral surface of the cylinder and the inner peripheral surface of the wall portion of the partition member.

With this configuration, the fluid that has passed through the hole from the internal flow path can be evenly flowed into the temporary storage space by passing through the annular space.

A partition member arranged inside the housing and having a partition wall that extends evenly along the inner surface of the housing from a position facing the supply port.
A cylinder arranged so as to be reciprocating in the axial direction,
Equipped with
The internal flow path is composed of an inner surface of the housing and an outer surface of the partition wall of the partition member.
It is preferable that an expansion space connecting the internal flow path and the temporary storage space is formed between the inner surface of the housing and the outer peripheral surface of the cylinder.

With this configuration, the fluid that has passed through the internal flow path can be further dispersed and then flowed into the temporary storage space by flowing it into the extended space.

The housing comprises a plurality of said supply ports.
It is preferable that the flow path includes a plurality of external flow paths connected to the plurality of supply ports.

With this configuration, the internal configuration of the housing can be simplified.

It is preferable that the housing has a cylindrical shape, the inner surface on one end side of the housing is formed of the tip surface of a cylinder that can move toward the inner surface on the other end side, and a protrusion is formed at the center of the tip surface of the cylinder. ..

With this configuration, that is, the protrusion, the flow of fluid in the temporary storage space can be made more difficult to stay.

A cylinder arranged so as to be reciprocating in the axial direction,
An urging means for urging the cylinder to protrude into the temporary storage space,
Can be provided.

A cylinder arranged so as to be reciprocating in the axial direction,
A pressurizing means for applying a fluid pressure to the cylinder so as to project the cylinder into the temporary storage space.
Can be provided.

A cylinder arranged so as to be reciprocating in the axial direction,
A driving means for projecting the cylinder into the temporary storage space,
Can be provided.

The present invention provides means for solving the above problems.
With a pump,
A dispenser that discharges the fluid supplied from the pump,
An accumulator having any of the above configurations, which is provided in the middle of the pipe connecting the dispenser and the pump,
Provided is a fluid discharge system characterized by the above.

The present invention provides means for solving the above problems.
With a pump,
An accumulator having any of the above configurations, which discharges the fluid supplied from the pump,
Provided is a fluid discharge system characterized by the above.

The present invention provides means for solving the above problems.
With a pump,
An accumulator having any of the above configurations, to which fluid is supplied from the pump,
An on-off valve connected to the downstream side of the accumulator,
Provided is a fluid discharge system characterized by the above.

According to the present invention, since the supply port and the discharge port separated from each other in the axial direction are formed in the housing and the internal volume of the temporary storage space of the housing can be changed in the axial direction, the fluid can be supplied from the supply port. It can be discharged from the discharge port in the order in which it was supplied to the temporary storage space. In addition, since the fluid is evenly supplied to the temporary storage space via the flow path, the fluid does not partially stay in the temporary storage space, and there are problems such as solidification and deterioration of the fluid. Can be prevented.

It is a vertical sectional view of the accumulator which concerns on this embodiment. FIG. 3 is a cross-sectional view taken along the line AA of FIG. It is a perspective view of the partition member of FIG. It is a schematic diagram which shows an example of the fluid discharge system which applied the accumulator of this invention. It is a vertical sectional view of the accumulator which concerns on another embodiment. FIG. 5 is a cross-sectional view taken along the line BB of FIG. It is sectional drawing of the accumulator which concerns on other embodiment. It is a perspective view of the partition member which concerns on other embodiment. It is a perspective view of the partition member which concerns on other embodiment. It is a schematic diagram which shows an example of the fluid discharge system which concerns on other embodiment which applied the accumulator of this invention. It is a vertical sectional view of the accumulator which concerns on another embodiment. It is a vertical sectional view of the accumulator which concerns on another embodiment.

Hereinafter, embodiments according to the present invention will be described with reference to the accompanying drawings. In the following description, terms indicating a specific direction or position (for example, terms including "top", "bottom", "side", and "edge") are used as necessary, but the use of these terms is used. Is for facilitating the understanding of the invention with reference to the drawings, and the meaning of those terms does not limit the technical scope of the present invention. Further, the following description is merely an example and is not intended to limit the present invention, its application, or its use. Furthermore, the drawings are schematic, and the ratio of each dimension is different from the actual one.

FIG. 1 shows an accumulator 1 according to the present embodiment. The accumulator 1 has a configuration in which a cylinder 3 and a partition member 4 are housed in a housing 2.

The housing 2 has a cylindrical shape and is composed of a first housing 5 and a second housing 6. The first housing 5 is formed with supply ports 7 and discharge ports 8 on both ends, and communicates with each other inside and outside the first housing 5. In FIG. 1, the supply port 7 is composed of a tubular portion 9 that projects upward from one end side of the first housing 5. Further, the discharge port 8 is open on the lower surface on the other end side of the first housing 5. One end of the first housing 5 has a portion ahead of the supply port 7 having a slightly smaller outer diameter than the other portions, to which the second housing 6 is connected.

The inside of the first housing 5 is a first region 10, a second region 11, a third region 12, and a fourth region 13 from one end side. The second region 11, the third region 12, and the fourth region 13 form an internal space through which the fluid flows.

The first region 10 has a larger inner diameter than the second region 11 and the third region 12, and the seal member 15 housed in the seal case 14 is arranged therein. The seal case 14 includes a first seal case 14a arranged side by side in the axial direction of the housing 2 and a second seal case 14b. The first seal case 14a is longer than the second seal case 14b. A first seal member 15a and a wear ring 16 are provided on the inner peripheral surface of the first seal case 14a. A second seal member 15b having the same configuration as the first seal member 15a is provided on the inner peripheral surface of the second seal case 14b. The sealing member 15 is in close contact with the outer peripheral surface of the cylinder 3 and seals between the first housing 5 and the second housing 6. The wear ring 16 functions as a thrust bearing that slidably supports the cylinder 3 described later along the axial direction.

The supply port 7 is open in the second region 11. In FIG. 1, the supply port 7 is open in the upper portion of the second region 11 (there is no particular limitation on the opening position of the supply port 7). As shown in FIG. 2, a first diameter-expanded portion 17 having a large inner diameter is formed from the opening portion toward both sides in the circumferential direction. A second diameter-expanded portion 18 having an inner diameter smaller than that of the first diameter-expanded portion 17 is formed in a portion below the first diameter-expanded portion 17. A partition member 4 described later is arranged in the second region 11.

Returning to FIG. 1, the third region 12 together with the fourth region 13 described later constitutes a temporary storage space 5a in the internal space formed in the first housing 5. A part of the cylinder 3, which will be described later, can protrude into the third region 12. The cylinder 3 is pressed by a spring 21, which is an example of the urging means, and constantly exerts a constant pressing force on the fluids located in the third region 12 and the fourth region 13.

The fourth region 13 is a space for connecting the third region 12 to the discharge port 8. The fourth region 13 extends downward in FIG. 1 with respect to the axial direction of the first housing 5. Further, the cross-sectional area of the flow path is narrow in the portion where the fourth region 13 is connected to the third region 12. As a result, the pressing force of the cylinder 3 can be effectively applied to the fluid.

One end of the second housing 6 is expanded in the outer diameter direction and connected to one end of the first housing 5 (the outer peripheral surface of the portion corresponding to the first region 10). The other end side of the second housing 6 is closed, and one end of the spring 21 can be pressure-welded to the inner surface of the closed wall 19. Further, an air vent hole 20 is formed in the central portion of the closed wall 19. The air bleeding hole 20 prevents the internal air pressure from increasing or decreasing when the cylinder 3 reciprocates, and alleviates the generated air resistance.

The cylinder 3 has a hollow cylindrical shape with one end closed and the other end open, and a spring 21 as an urging means is arranged in the internal space. One end of the spring 21 is in contact with the inner surface of the closing wall 3a of the cylinder 3, and the other end is protruding from the opening 3b of the cylinder 3 and is in contact with the inner surface of the closing wall 19 of the second housing 6. As a result, the cylinder 3 is urged to the left in FIG. 1, that is, toward the tip surface side, and is in a state where it can protrude or retract into the third region 12. As a result, the internal volume of the temporary storage space 5a of the first housing 5 can be changed. A protrusion 22 is formed at the center of the outer surface of the closed wall 3a of the cylinder 3. The protruding portion 22 is composed of a cylindrical portion 22a and a truncated cone portion 22b on the tip end side thereof. The protrusion 22 projects to the central portion of the third region 12.

As shown in FIG. 3, the partition member 4 includes a cylindrical wall portion 23. A flange portion 24 is formed in the opening on one end side of the wall portion 23. Holes 25 are formed in the wall 23 at two symmetrical positions about the center of the axis. Each hole 25 is formed in a rectangular shape in a plan view.

As shown in FIG. 1, the partition member 4 is mounted in the second region 11 of the first housing 5. In the mounted state, as shown in FIG. 2, a portion of the wall portion 23 below the hole portion 25 comes into contact with the second diameter-expanded portion 18 on the lower side of the second region 11. Then, the inner peripheral surface of the wall portion 23 and the inner peripheral surface of the third region 12 are flush with each other. The portion of the wall portion 23 above the hole portion 25 forms a gap with the inner surface of the first diameter-expanded portion 17 of the second region 11. At this time, each hole 25 is positioned in the horizontal direction (in FIG. 1, the direction orthogonal to the paper surface). It is preferable that the partition member 4 is positioned in the rotational direction with respect to the first housing 5 by a pin or the like so that the hole 25 is always in this position. Further, the lower edge portion of each hole portion 25 is located at the terminal position of the first diameter expansion portion 17 of the second region 11 of the first housing 5. As a result, two internal flow paths 26 are formed from the upper supply port 7 to the holes 25 on both sides through the gap. Further, an annular space 27 is formed between the inner peripheral surface of the wall portion 23 of the partition member 4 and the outer peripheral surface of the cylinder 3. Both the internal flow path 26 and the annular space 27 are a part of the internal space, and as will be described later, function as a flow path 5b for evenly supplying the fluid to the temporary storage space 5a of the first housing 5.

The accumulator 1 having the above configuration can be adopted in a fluid discharge system as described below.

For example, as shown in FIG. 4, the accumulator 1 can be connected in the middle of the pipe 40 connecting the high pressure pump 28 and the dispenser 29. A pressure reducing valve 30 and an on-off valve 31 are connected to the pipe 40 from the high pressure pump 28 side on the upstream side of the accumulator 1. The on-off valve 31 is controlled to open and close according to the discharge state of the dispenser 29.

When the fluid is supplied from the high-pressure pump 28 to the dispenser 29 in this way, pulsation or the like may occur, but by adopting the accumulator 1, the occurrence of such a problem can be prevented. Then, in the accumulator 1, as shown in FIG. 2, the fluid flowing into the inside (second region 11) from the supply port 7 collides with the wall portion 23 of the partition member 4 and branches, and each of the internal flow paths 26 Flows to reach the hole 25. Since the holes 25 are formed evenly on the left and right sides, the fluid enters the annular space 27 at the same time. The fluid that has entered the annular space 27 is further divided into two in the circumferential direction and flows, and then flows from the annular space 27 to the third region 12. In this way, the fluid is divided into two parts and flows, and after being further divided into two parts and spread in the annular space 27, it flows into the third region 12. Therefore, a substantially ring-shaped uniform flow is generated from the second region 11 side to the third region 12 side. Further, since the protruding portion 22 is formed at the tip of the cylinder 3, the inlet portion of the third region 12 (on the side of the second region 11) is also annular. Therefore, the flow of the fluid from the annular space 27 matches the shape of the inlet portion of the third region 12, and it becomes easy to flow uniformly over the entire area, and the fluid does not stay in a part.

Further, as shown in FIG. 10, the fluid may be discharged directly from the accumulator 1 without providing the dispenser 29. In this case, it is preferable to connect the pipe 41 to the discharge port 8 of the accumulator 1 and provide an on-off valve 42 in the middle of the pipe 41. According to this, the fluid supplied into the temporary storage space 5a of the housing 2 is pressed by the cylinder 3 protruding therein and flows out from the discharge port 8. When the on-off valve 42 is provided, the pressure of the fluid in the temporary storage space 5a may be adjusted so as to always be within the set range by opening and closing the on-off valve 42 as appropriate. According to this, it becomes possible to stabilize the discharge amount per unit time of the fluid.

The present invention is not limited to the configuration described in the above embodiment, and various modifications can be made.

In the above embodiment, the partition member 4 mounted on the housing 2 has a cylindrical shape, but as shown in FIGS. 5 and 6, for example, the partition member 4 is composed of only a portion above the hole portion 25 of the partition member 4. It can also be composed of a partition wall 32 having an arcuate cross section. In this case, the partition wall 32 may be fixed to any of the inner surfaces where the supply port of the cylindrical portion 9 opens. Further, the second region 11 is composed of only the inner peripheral surface having the same inner diameter dimension as the inner diameter dimension of the first diameter expansion portion 17 without providing the second diameter expansion portion 18. As a result, the fluid branched at the partition wall 32 flows in the upper half of the second region 11, that is, the internal flow path 26, and then is temporarily dispersed in the lower half of the second region 11, that is, the expansion space 5c. It will flow out to the third region 12 of the storage space 5a.

In the above embodiment, the partition member 4 is mounted in the housing 2 to provide two internal flow paths 26 as the flow paths 5b, but such a flow path 5b is connected to the outside of the housing 2. The configuration may be provided with an external flow path 33. For example, as shown in FIG. 7, two supply ports 7 may be formed in the housing 2, and an external flow path 33 (for example, a supply pipe) may be connected to each supply port 7. The external flow path 33 is designed so that the piping resistance in each of the branched flow paths is uniform so that the fluid is evenly supplied to each supply port 7. According to this, two flow paths (external flow paths 33) can be easily formed without particularly devising the internal configuration of the housing 2. Here, as the external flow path 33, one pipe branched in the middle is used.

Further, the flow path 5b may be configured to include both the internal flow path 26 and the external flow path 33. For example, the fluid branched by the external flow path 33 may be further branched by the internal flow path 26 provided inside the housing 2. As a result, it is possible to prevent the occurrence of retention by making the flow form of the fluid flowing into the third region 12 more uniform than in each of the above-described embodiments.

In the above embodiment, the holes 25 formed in the partition member 4 are formed in two places and have the same shape, but the number and shape may be different. For example, as shown in FIG. 8, a plurality of hole portions 25 are formed in the circumferential direction of the wall portion 23 of the partition member 4, and the shape of each hole portion 25 is gradually changed from a certain position (here, the center position) toward both sides. It may be different so that the inner diameter dimension becomes larger. In this case, the hole 25 having the smallest diameter may be arranged so as to face the supply port 7. That is, the hole 25 may be arranged so as to be separated from the supply position of the fluid and the flow resistance decreases as the hydraulic pressure decreases. According to this, the fluid supplied from the supply port 7 passes through the annular space 27 in the small-diameter hole portion 25 having a large flow resistance in the region where the hydraulic pressure is high, that is, in the region near the supply port 7. As the hydraulic pressure decreases, the diameter of both sides gradually increases, and the hole portion 25 has a smaller flow resistance. As a result, a plurality of flow paths 5b from the supply port 7 to each hole 25 are formed, and the flow of the fluid is branched by these flow paths 5b. Further, the fluid flows from the hole 25 into the annular space 27 and is changed in direction, so that the flow becomes uniform toward the temporary storage space 5a. Therefore, in the annular space 27, a uniform flow of the fluid can be obtained as a whole, and the retention of the fluid in the third region 12 can be prevented more effectively.

In the above embodiment, the number of holes 25 formed in the partition member 4 is two, but one or a plurality of holes may be formed so that the shape changes in the circumferential direction. For example, as shown in FIG. 9, the hole portion 25 may be formed so that the width dimension gradually increases as the distance from a certain position increases to both sides. According to this, similarly to the one shown in FIG. 8, the flow resistance received when the fluid passes through the hole 25 becomes smaller as the hydraulic pressure decreases, that is, as it moves away from the supply port 7, and is annular. The flow to the space 27 can be made uniform in the circumferential direction. As a result, the flow path 5b for uniformly supplying the fluid through the supply port 7 and the annular space 27 is formed. Therefore, it is possible to make the flow of the fluid from the annular space 27 to the third region 12 uniform and prevent the partial retention of the fluid in the third region 12.

In the above embodiment, the urging force of the spring 21 is used to project the cylinder 3 into the temporary storage space 5a, but the cylinder 3 may be operated by another method.

For example, in FIG. 11, the cylinder 3 is operated by using the fluid pressure. That is, the cylinder 3 is closed not only on the front end side but also on the rear end side, and forms a closed space 43 with the other end surface of the second housing 6. A fluid is supplied and discharged from the outside to the closed space 43 through a through hole 44 formed in the other end surface of the second housing. Examples of the fluid used include gas such as air and liquid such as water. As the pressurizing and depressurizing means for supplying and discharging the fluid, a pump 45, a solenoid (not shown) or the like can be used. Then, by supplying the fluid to the closed space 43, the cylinder 3 can be projected into the temporary storage space 5a. As a result, the fluid stored in the temporary storage space 5a is pressurized and can be discharged from the discharge port 8. In FIG. 11, the same components as those in the above embodiment are designated by the same reference numerals, and the description thereof will be omitted.

Further, in FIG. 12, the cylinder 3 is operated by using a driving means such as a motor 46 and a solenoid (not shown). When a motor 46 is used as a driving means, a rack 48 is formed on a rod 47 protruding from the rear end surface of the cylinder 3, and a pinion 49 integrated with a rotating shaft of the motor 46 is engaged with the rack 48. good. Further, when a solenoid is used as the driving means, the rod 47 may be moved forward and backward by the solenoid. Also in FIG. 12, the same reference numerals are given to the same configurations as those of the above-described embodiment, and the description thereof will be omitted.

1 ... Accumulator 2 ... Housing 3 ... Cylinder 3a ... Closed wall 3b ... Opening 4 ... Partition member 5 ... First housing 5a ... Temporary storage space 5b ... Flow path 5c ... Expansion space 6 ... Second housing 7 ... Supply port 8 ... Exhaust Outlet 9 ... Cylindrical portion 10 ... 1st region 11 ... 2nd region 12 ... 3rd region 13 ... 4th region 14 ... Seal case 14a ... 1st seal case 14b ... 2nd seal case 15 ... Seal member 15a ... 1st Seal member 15b ... Second seal member 16 ... Wearing 17 ... First expansion part 18 ... Second diameter expansion part 19 ... Closing wall 20 ... Air bleeding hole 21 ... Spring 22 ... Protruding part 22a ... Cylindrical part 22b ... Conical base Part 23 ... Wall part 24 ... Cylinder part 25 ... Hole part 26 ... Internal flow path 27 ... Circular space 28 ... High pressure pump 29 ... Dispenser 30 ... Pressure reducing valve 31 ... Open / close valve 32 ... Partition wall 33 ... External flow path (supply pipe)
40 ... Piping 41 ... Piping 42 ... Opening and closing valve 43 ... Closed space 44 ... Through hole 45 ... Pump 46 ... Motor 47 ... Rod 48 ... Rack 49 ... Pinion

Claims (9)

Equipped with a housing with a temporary storage space configured to change the internal volume in the axial direction
The housing is
A supply port and a discharge port that are formed at positions separated from each other in the axial direction and communicate with the temporary storage space.
A partition member formed by forming a hole portion that guides the fluid branched by the wall portion to the temporary storage space side in the wall portion that extends evenly along the inner surface of the housing from the position facing the supply port. When,
A flow path including a plurality of internal flow paths composed of an inner surface and an outer surface of the wall portion of the partition member, and a flow path that evenly supplies fluid to the temporary storage space through the supply port.
A cylinder arranged so as to be reciprocating in the axial direction,
An annular space connecting the internal flow path and the temporary storage space between the outer peripheral surface of the cylinder and the inner peripheral surface of the wall portion of the partition member.
An accumulator characterized by having. The accumulator according to claim 1, wherein the accumulator includes a plurality of external flow paths connected to the plurality of supply ports. The housing is cylindrical, and the inner surface on one end side of the housing is composed of the tip surface of a cylinder that can move toward the inner surface on the other end side, and a protrusion is formed at the center of the tip surface of the cylinder. The accumulator according to claim 1 or 2. The accumulator according to any one of claims 1 to 3, further comprising an urging means for urging the cylinder so as to project into the temporary storage space. The invention according to any one of claims 1 to 3, further comprising a pressurizing means for applying a fluid pressure to the cylinder so as to project the cylinder into the temporary storage space. accumulator. The accumulator according to any one of claims 1 to 3, further comprising a driving means for projecting the cylinder into the temporary storage space. With a pump,
A dispenser that discharges the fluid supplied from the pump,
The accumulator according to any one of claims 1 to 6, which is provided in the middle of the pipe connecting the dispenser and the pump.
A fluid discharge system characterized by being equipped with. With a pump,
The accumulator according to any one of claims 1 to 6, which discharges the fluid supplied from the pump, and the accumulator.
A fluid discharge system characterized by being equipped with. With a pump,
The accumulator according to any one of claims 1 to 6, wherein the fluid is supplied from the pump.
An on-off valve connected to the downstream side of the accumulator,
A fluid discharge system characterized by being equipped with.

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