JPH04113200A - High pressure gas injection device - Google Patents

Abstract

PURPOSE:To make a proper dampening of a striking reaction of an opening or closing valve by a method wherein a shock absorbing valve is fitted and inserted from a large diameter chamber of a dampening chamber into a small diameter chamber. CONSTITUTION:Under an instant condition in which a large amount of high pressure gas is flowed from a pressure increasing and storing chamber 20 into an injection passage 16 and injected into a loading part of a missile, an opening or closing valve 54 receives a substantial high pressure from the high pressure gas and is rapidly displaced from a releasing start position to a full-opened position, thereby at the shock absorbing part B, a shock reaction of the opening or closing valve 54 is properly dampened. That is, in regard to a series of displacement of the opening or closing valve 54, the shock absorbing valve 57 at the shock absorbing part B is closely fitted and inserted from a large diameter chamber to the small diameter chamber in the shock absorbing chamber 38. While this close fitted state is being kept, the shock absorbing operation to cause the valve to be displaced to a rear end in the small diameter chamber and a displacement of the shock absorbing valve 57 are carried out, the shock absorbing reaction of the opening or closing valve 54 is dampened under a relative dampening action with the shock absorbing flow flowed from the small diameter chamber to the large diameter chamber through a bypassing passage 39 of the fluid in the shock absorbing chamber 38.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention is a high-speed flying device in which a sublimable object such as dry ice is used as a flying object, and the projectile is made to fly at high speed under the jet action of high-pressure gas. The present invention relates to a high-pressure gas injection device suitably used in a body launch system.

2. Description of the Related Art Objects that fly through space at high speed, such as bullets, shells, and rockets fired from firearms, cannons, etc., can generally be referred to as "high-speed flying objects." These “high-speed projectiles”
In most cases, emphasis is placed on use primarily for military purposes, but the large amount of energy released when the projectile flies at high speed and collides with some object makes it suitable for use. Peaceful use is fully possible by controlling it.

Therefore, the flying object is loaded into a high-speed flying object launch system, and the flying object is driven at high speed by the recoil from the explosion of gunpowder, the powerful injection pressure of high-pressure gas, and electrical repulsion, etc., and collides with the desired target object. Attempts to analyze the physical properties of such objects have already been put into practical use at the experimental stage.

In the high-speed projectile launch system for flying the projectile at high speed, when high-pressure gas is used as the driving source medium, the required amount of gas is temporarily stored in a closed space while being maintained at an extremely high pressure state. When the projectile is launched, the high-pressure gas must be released all at once and ejected to the projectile site, and the entire energy of the injection pressure must be effectively applied to the projectile.

Problems to be Solved by the Invention As mentioned above, when an opening/closing means is used to blow out high-pressure gas stored in a closed space all at once, the opening/closing means is opened in an extremely short period of time to release the gas. It is necessary to fully open the holes all at once. However, the opening/closing means are
Since the valve body is constantly exposed to gas pressure, the higher the gas pressure in the closed space, the more difficult it becomes to open the valve due to the influence of the pressure. Therefore, even if the opening/closing means is operated as set, the valve body may not open instantly and accurately each time high-pressure gas is ejected, and a time lag inevitably exists in the opening state.

If there is a time lag in the opening of the valve body, if observed microscopically, the high pressure gas in the closed space will
It is gradually ejected from the hole over time, reducing its energy. Therefore, it has been pointed out that there is a drawback that the much-needed high energy cannot be used intensively for launching the projectile.

Further, when the high-pressure gas is injected as described above, the opening/closing means is forced to move suddenly due to the large pressure of the gas. As a measure to absorb and alleviate this impact reaction, it has been proposed to attach a buffer member such as a spring to the opening/closing means. However, in this case, operating the opening/closing means requires a large opening operation force that can sufficiently oppose the buffer member. Especially,
If the buffering force of the buffer member is increased, a correspondingly larger opening operation means must be used.

By the way, the inventors have now proposed a high-speed projectile launch system based on a new idea of using a sublimable object such as dry ice, which is solidified carbon dioxide gas, as a projectile instead of using a metal projectile. We also developed the launch system and filed a patent application for the launch system. This launch system is
The purpose of this method is to make a sublimating projectile fly at high speed under the action of a high-pressure gas jet, and then apply it to a target object to accomplish a desired physical task.

In this case, since the flying object loaded into the high-speed projectile launch system is sublimable and has an extremely low temperature as described above, a well-known high-pressure gas is used to launch the conventional metal projectile under the action of a gas jet. The injection device cannot be put to practical use as it is. In addition, when launching a sublimating projectile by gas injection, it is possible to instantly release the high-pressure gas mentioned above at once and use all of the high energy possessed by the gas to effectively use it to launch the projectile. The demands must be even greater.

Purpose of the Invention The present invention provides a high-pressure gas injection device used in the above-mentioned system for ejecting sublimable flying objects at high speed, by adjusting the opening/closing means for controlling the release and injection of high-pressure gas stored in a closed space with a slight setting. By opening only the area, the gas hole is opened to the minimum necessary amount, and the pressure of the high-pressure gas injected from this hole is used to instantly fully open the hole, eliminating all high-pressure gas in the closed space. To provide a novel gas injection device capable of releasing and injecting gas all at once, allowing its high energy to effectively act on launching a flying object, and suitably absorbing and mitigating the impact force acting on an opening/closing means when injecting high-pressure gas. The purpose is to

Means for Solving the Problems In order to overcome the above-mentioned problems and suitably achieve the intended purpose, the present invention provides a flying object made of a sublimable object such as dry ice loaded at a firing position in a flying object loading device. A high-pressure gas injection device used in a high-speed projectile launch system that causes a body to fly at high speed through a launch tube using the injection pressure of high-pressure gas, and causes the projectile to collide with some object to perform a predetermined physical work. And.

A gas storage/injection section constituting the main body of the injection device, a buffer section installed behind the gas storage/injection section to absorb and alleviate impact reaction during gas injection, and an opening operation section installed behind the buffer section. and a movable operation member that is appropriately connected to the opening operation section and connects the piston valve in the gas storage and injection section and the buffer valve in the buffer section to predetermined positions, and the gas storage and injection section includes: an annular gas pressurization storage chamber for temporarily storing high-pressure gas filled from the outside in a pressurized state; a gas injection path that coaxially communicates with each other via a loading device; and a plurality of gas injection paths that are bored in the radial direction on the same circumference of the annular gas pressurization storage chamber and communicate the pressurization storage chamber and the gas injection path. The buffer portion includes a gas introduction hole and the piston valve that is tightly fitted into the gas injection path so as to be freely movable in the axial direction and open and close the plurality of gas introduction holes simultaneously; A buffer chamber defined within the main body, forming a large diameter chamber and a small diameter chamber in the axial direction, and filled with a predetermined amount of fluid, and communicating the large diameter chamber and the small diameter chamber of the buffer chamber. a bypass passage for fluid; the buffer valve movably inserted into the buffer chamber, inserted into the large diameter chamber with an appropriate margin, and tightly fitted into the small diameter chamber; a fluid adjustment member that is removably inserted into the bypass passage so as to be able to change and adjust the width of the opening cross section for fluid circulation in the bypass passage; a driving means whose movement stroke is set to instantaneously move the movable member in accordance with the opening/closing stroke of the piston valve; and an operating member extending from the buffer, and the movable operating member is movably inserted and supported across the axial center of the main body of the buffer section and the gas injection path of the gas storage and injection section, and A rear end portion extending outside the main body of the part is removably connected to an operating member in the opening operation part, the piston valve is connected to the front end part, and the buffer valve is disposed approximately in the center part. Embodiment 6 Next, we will discuss a high-pressure gas injection device according to the present invention.

Preferred embodiments will be described below with reference to the accompanying drawings. In order to facilitate understanding of the high-pressure gas injection device according to the present application, the schematic configuration of a high-speed projectile launch system in which the high-pressure gas injection device is implemented will be briefly explained.6 (About the high-speed projectile launch system) High-speed flight The body launch system uses sublimation projectiles to
This is a series of firing systems for conducting destructive tests, impact tests, etc. on various samples, and the entire system is schematically illustrated in FIG. That is, in order from the right in FIG. 14, the high-pressure gas injection device according to the present embodiment, the sublimation projectile loading device Who, the launch tube 82 extending horizontally to the left and right, and in front of the launch @ 82, various samples are It basically consists of a sample storage device 83 for storing objects, etc., and a shock absorber 84 for absorbing and mitigating the strong impact when a flying object collides with a sample.

Then, by operating a degassing device (not shown) in the shock absorber 84, the entire flight path leading to the launch tube 82 and the loading device W80 is degassed, creating a negative pressure state suitable for the flight of the projectile. Hold. Under this condition, after the flying object is loaded into the loading device 80, high-pressure gas injected all at once from the high-pressure gas injection device according to the present embodiment is applied to the flying object, and the projecting pressure causes the flying object to be launched. A predetermined test or processing is performed by instantly flying the sample into the tube 82 at high speed and colliding with a sample (not shown) in the sample storage device 83.

Note that dry ice, which is formed by solidifying carbon dioxide gas into a cylindrical shape, is preferably used as the sublimable flying object. For example, when reducing liquefied natural gas (LNG) to room-temperature gas, a large amount of extremely low-temperature cold energy is released to cool and solidify carbon dioxide, which is produced as a by-product in the petrochemical and ammonia industries, at low cost. This is also because dry ice can be produced in large quantities.

(Regarding the high-pressure gas injection device) As shown in FIG. It basically consists of a buffer section B installed at the rear of section A, and an opening operation section C installed at the rear of this buffer section B. A piston valve 54 that is slidably disposed within the gas storage and injection section A and injects and shuts off high-pressure gas is disposed on one moving operation rod 50 that is appropriately connected to the opening operation section C. At the same time, a buffer valve 57 is connected to the buffer valve 57, which is slidably disposed within the buffer section B and functions to alleviate the impact generated when high-pressure gas is injected.

(About the gas storage and injection unit) As shown in Fig. 1, the gas storage and injection unit A stores high-pressure gas pressurized from the outside and injects it when launching a projectile, and is the main body of the gas storage and injection unit. The main body 10 is constructed as a horizontally stationary closed drum-shaped casing. Specifically, as shown in the figure, a housing (outer 1) 11 having a large diameter when viewed from the side, a small diameter injection WJ (inner cylinder) 12 located inside the housing 11, and a housing 1
1 and a pair of landing plates 13L located on the left and right of the injection tube 12
.

13R are fixed to each other in a sealed state by appropriate airtight maintenance means and fixing means. An annular space is defined between the inner circumference of the housing 11 and the outer surface of the injection tube 12, which is sealed by the left and right landing plates 13L and 13R.
This space functions as a pressurized storage chamber 20 for high-pressure gas. Note that the housing 11 also functions as a fixing base for the main body 10.

As shown in FIG. 2, the injection cylinder 12 has a left cylinder part 12
a extends to the left outside of the left landing board 13L and is sealed to the right end of the communication cylinder 81 on the side of the flying object loading device 80, and the right cylinder part 12b extends to the right outside of the right landing board 13R. It is sealed and connected to the left end of the main body 30 of the buffer section B. Also,
The left and right lid discs 13L and 13R are set in the same disc shape that fits the left and right opening end surfaces of the housing 11, and the left and right cylinder parts 12a and 12b of the injection barrel 12 are tightly fitted into the center of the discs, respectively. An identical circular hole 14°14 is drilled to obtain the
Both holes 14.14 are aligned with each other in the axial center line.

In the main body 1o, the injection cylinder 12 corresponds to a high-pressure gas injection nozzle portion. For this reason, a metal cylinder liner 15 with high corrosion resistance and pressure resistance, which is open at both ends, is tightly fitted over the entire length of the inner hole of the injection cylinder 12, and the inner hole is used as an injection path 16 for high-pressure gas, as described below. The piston valve 54 is tightly fitted.

As shown in FIGS. 5 and 6, a plurality of gas introduction holes 17 are bored at predetermined intervals in the circumferential direction in the axial center of the injection tube 12 and the cylinder liner 15. extends in the radial direction to form the pressurized storage chamber 20.
and the injection path 16 are spatially communicated with each other. Note that the opening cross section of the gas introduction hole 17 is set to be an ellipse along the axial direction of the injection cylinder 12 in order to ensure smooth instantaneous inflow of high-pressure gas. Further, the inclined recess 18 formed on the outer peripheral surface of the injection cylinder 12 serves as the entrance of the gas introduction hole 17, and the inclined recess 19 formed on the inner peripheral surface of the cylinder liner 15 serves as the entrance of the gas introduction hole 17. It is said to be the exit of

As for the filling means for pressurizing high pressure gas into the pressurized storage chamber 20, as shown schematically in FIG. It is connected to a gas supply section 24 via a container 23. Also, the left cylinder portion 12a of the injection cylinder 12 serves as a pressure relief means for releasing the gas in the injection passage 16 to the outside and releasing the pressure.
A gas vent pipe 26 is inserted into the hole 25 opened in the radial direction, and a safety #27 is attached to the outside of the gas vent pipe 26, which can be set to be opened or closed.

The high-pressure gas used as a high-speed driving medium for the flying object is preferably an inert gas, especially nitrogen gas.

(About the buffer section) The buffer section B absorbs and alleviates the reaction impact of the piston valve 54, which will be described later, when the gas storage and injection section A injects high-pressure gas. 1
As shown in the figure, it is constructed as a horizontally oriented closed drum-shaped casing. Specifically, as shown in the figure, there is a housing 31 that is cylindrical when viewed from the side, and a circular landing plate 32 that covers the left and right opening end surfaces of the housing 31, respectively.
L and 32R are fixed to each other in a sealed state by appropriate airtight maintenance means and fixing means.

A circular hole space is defined inside the housing 31 sealed by the left and right landing plates 32L and 32R, and this space functions as a buffer chamber 38 into which a buffer valve 57, which will be described later, is movably inserted.

Note that the left and right landing platforms 32L and 32R are set to have the same outer diameter, and have a moving operation rod 5, which will be described later, in the center.
A shaft hole 33°33 of the same inner diameter is drilled through which 0 is inserted,
Both shaft holes 33, 33 are aligned on the shaft center line.

The main body 30 is removably connected to the main body 10 of the gas storage and injection section A via a fitting connection means formed on both the injection cylinder 12 and the left landing plate 32L. That is, as shown in FIGS. 1 and 10, a fitting hole 34 is formed in the right cylinder portion 12b of the injection tube 12, and a predetermined hole is formed on the inner circumferential surface of the opening end of the fitting hole 34 in the circumferential direction. A plurality of engagement protrusions 35 are formed that protrude radially inward at intervals. Further, the left landing plate 32L has a cylindrical portion 36 protrudingly provided on the end face facing the injection cylinder 12, which can be fitted into the insertion hole 34, and this cylindrical portion 36
A plurality of engagement protrusions 37 are formed on the outer peripheral surface of the shaft end side at predetermined intervals in the circumferential direction and protrude outward in the radial direction. Therefore, after the injection tube 12 and the left landing plate 32L are opposed to each other at a fitting position where the engagement protrusions 35 and 37 do not interfere with each other, and the cylindrical portion 36 is fitted into the insertion hole 34, the left landing plate 32L (main body 30)
By rotating the engaging protrusion 3 by the required angle in the circumferential direction, the engaging protrusion 3
5°37 engage with each other at the front and rear positions (left and right positions W in the axial direction).

In this state, as shown in FIG.
It is tightly fitted into the rear end of the injection passage 16 of the cylinder liner 15. The surface engaging protrusions 35 and 37 have an arcuate shape formed at a predetermined angle in the circumferential direction, and a plurality of identical protrusions are provided.

The buffer chamber 38 of the main body 30 is formed in a shape to suitably control the movement (moving speed) of a buffer valve 57, which will be described later, and is filled with a required fluid.

Specifically, as shown in FIG. 4(b), a first chamber is located in front of the buffer chamber 38 (to the left in the figure) in the housing 31 and has an inner diameter appropriately larger than the outer diameter of the buffer valve 57. 3
8a, and a second chamber 3 located rearward (to the right in the figure) from the center of the buffer chamber 38 and set to have an inner diameter that is approximately the same as the outer diameter of the buffer valve 57.
8b are communicated with each other via a tapered chamber 38c. The fluid filling this buffer chamber 38 is caused by the movement of the buffer valve 57 (
As a medium for suitably controlling the movement speed, silicone oil can be suitably used, for example, since an appropriate degree of activity can be easily selected. However, it is assumed that the amount of fluid filled is not a full amount in the room, taking into account temperature expansion of the fluid and the like.

A bypass passage 39 is bored in the housing 31 and communicates with the first chamber 38a and the second chamber 38b of the buffer chamber 38. The buffer valve 5 is then
As the buffer valve 57 moves, fluid flows between the first chamber 38a and the second chamber 38b, which are partitioned by 7.

The bypass path 39 is designed in consideration of the fluid-filled state.

It is formed at the bottom of the buffer chamber 38 to ensure effective flow of fluid. That is, specifically, Fig. 4(b)
As shown in FIG. 2, a first passage 39a and a second passage 39a each having an elliptical shape are formed in the lower part of the housing 31 in the radial direction and communicate with the first chamber 38a and the second chamber 38b. 39
b, and both flow passages 39a are bored in the axial direction of the housing 31.

The main channel 39c is in the form of an elliptical hole and communicates with the channel 39b. Then, in the fluctuation process of the buffer valve 57, the first
This allows fluid to flow back and forth between the chamber 38a and the second chamber 38b.

If the bypass passage 39 has a constant opening cross section required for all the flow passages, it can sufficiently perform its original function of promoting fluid flow. On this premise, by making the opening cross section of the flow path adjustable, the fluid can be adjusted more effectively.
It becomes possible to suitably control the relaxation of fluctuations in the buffer valve 57. Therefore.

As a specific adjustment means, as shown in FIG. 4(b), a flow rate adjustment member 40 is detachably inserted into the main flow path 39c. Note that the main flow path 39c is the first flow path 39a.
A case is illustrated in which the circular opening cross section is set appropriately larger than that of the second flow path 39b.

The flow rate adjustment member 40 has a knob 42 fixed to the outer end of an adjustment rod 41 that is set to a predetermined axial length and constant diameter (thickness) commensurate with the path length of the main flow path 39c and the circular opening cross section. . As shown in FIG. 11, when the main body 30 is inserted and set through the U-shaped attachment/detachment opening 49 formed at the bottom of the cover panel 32R (see FIG. 4(b)), the adjustment rod 41 is The knob 42 is inserted and supported in the passage 39c, and is fixed to the right end of the housing 31 and located in the attachment/detachment operation port 49.

The adjusting rod 41 and the knob 42 are connected to each other via a screw shaft 43 and a screw hole 44, as shown in FIG. 4(b) and FIG. 13. Further, the knob 42 and the lid plate 32R are fixed to each other via a screw cylinder 45 and a screw hole 46. Note that a small diameter shaft portion 47 is protruded from the end opposite to the end where the knob 42 of the adjustment rod 41 is disposed, and this shaft portion 47 is formed in a bearing hole formed in front of the extension line of the single flow path 39c. By fixing the knob 42 and the cover plate 32R in a state where it is inserted into the adjustment rod 48, the adjustment rod 41 is set to extend parallel to the main flow path 39c.

The flow rate adjustment member 40 configured in this way is connected to the main flow path 39.
Based on the path length of c and the circular opening cross section, various types of shapes and sizes can be selected and exchanged for use. For example, it is possible to suitably select and use the adjustment rod 41 having a diameter that is changed in size, or one in which a small diameter portion and a large diameter portion are formed in the axial direction so that the entire shaft has a multistage shaft shape.

That is, the opening cross section of the main flow path 39c can be varied.

By providing unevenness in the flow path, the flow resistance of the fluid flowing through the main flow path 39c can be varied, and thereby the buffer valve 57 can be controlled in moderation according to the impact force at the time of high-pressure gas injection.

(Regarding the moving operation rod) The piston valve 54 is movably and tightly fitted into the injection path 16 of the gas storage and injection section A, and the buffer valve 57 is movably fitted and inserted into the buffer chamber 38 of the buffer section B. , as shown in FIGS. 2 to 4, they are positioned and fixed at a predetermined portion of one moving operation rod 50, and are interlocked with each other. As shown in the figure, the moving operation lever 50 is connected to both landing plates 32 of the main body 30 in the buffer section B.
It is supported horizontally between the shaft holes 33 and 33 in R and 32L through appropriate airtight retaining means, and the front end extending from the left landing plate 32L is inserted behind the shaft center in the injection path 16. There is. The rear end extending from the covered board 32R is
It is removably connected to an operating member 68 in an opening operating section C, which will be described later.

(Regarding the piston valve) As shown in FIGS. 4(a) and 6, the piston valve 54 is a straight valve that fits tightly into the high-pressure gas injection path 16 and can open and close all the gas introduction holes 17 at once. Formed in a cylindrical shape,
A small-diameter support shaft portion 51 protruding from the front end of the moving operation rod 50
is inserted into. A cylindrical nut 56 fitted into the piston valve 54 is tightened onto the threaded shaft portion 51a extending from the rear end of the support shaft portion 51 to be positioned and fixed. Moreover, as shown in the figure, this piston valve 54 has a tapered introduction guide part 54a formed on its front end outer periphery (left end in the figure), so that high-pressure gas can be instantaneously introduced into the injection path 16. . Further, the piston valve 54 is provided with a plurality of gas vent holes 55 that penetrate in the axial direction, so that the pressure received from the high pressure gas injected into the injection path 16 can be reduced. In addition, on the outer periphery of the piston valve 54,
Appropriate airtight maintenance means are provided to maintain airtightness with the inside of the injection path 16.

(About the buffer valve) As shown in FIG. 4(b) and FIG. 7, the buffer valve 57 is fitted into the first chamber 38a of the buffer chamber 38 with an appropriate margin, and is inserted into the second chamber 38b. It is formed into an annular shape that can be tightly fitted, and is tightly fitted through the shaft hole 58 at a position slightly to the right of the axial center of the moving operating rod 50. It is positioned and fixed by a pair of left and right engaging plates 59 and 59 fitted to the moving operation rod 50. Note that appropriate air-tightness maintaining means are attached to the outer periphery of the buffer valve 57 and the inner periphery of the shaft hole 58. In addition, the left and right engagement plates 5
As shown in FIG. 7, 9 is composed of a pair of split molds that can be divided into upper and lower parts, and is fitted into a corresponding annular engagement groove 52 carved in the outer periphery of the moving operation rod 50. They are connected, positioned and fixed.

However, the left engagement plate 59 also functions as a positioning member when the moving operation rod 50 is positioned and set to the pre-opening operation position. That is, as shown in FIG. 2, the position where the left engagement plate 59 abuts against the inner end surface of the left landing plate 32L can be easily and accurately set as the set position of the operating rod 5o itself.

(Regarding the opening operation section) The opening operation section C operates the moving operation rod 50, and as shown in FIG. It includes a member 60, a drive cylinder 66 installed at the rear end of the support member 60, and a pair of operating members 68 appropriately connected to the drive cylinder 66.

First, the support member 60 has a cylindrical portion 61 that is basically cylindrical in shape and has windows 62 on both sides of its periphery.
Flange portions 63L and 63R, which are square when viewed from the side, are connected. Then, the left flange portion 63L is connected to the buffer portion B.
It is positioned and fixed to the outer surface of the cover plate 32R in the main body 30 by appropriate fixing means. As shown in FIGS. 11 and 12, a relief opening 64 is formed at the center of the lower side of the left flange portion 63L to facilitate attachment and detachment of the flow adjustment member 40. 49.

The drive cylinder 66 is fixed to the right flange portion 63R of the support member 60 by appropriate fixing means and held horizontally, and the front end of the rod 67 is inserted into the support member 60 through the hole 65 of the right flange portion 63R. ing. The lot 67 can be reciprocated with a predetermined reciprocating stroke (stroke indicated by the symbol S in FIG. 3). The cylinder 66 is of a double-acting hydraulic type, and its entirety is schematically illustrated in FIG. 14.

- The pair of operating members 68, 68 are connected in a cantilevered state above and below a support member (59) fixed to the front end of the rod 67 of the drive cylinder 66 with a nut 70, and are connected to the front end of the support member 60 (left 7 operating member 68 extending horizontally toward
A hook portion 71 that protrudes toward the opposing operating member 68 is formed at the front end (the end facing the moving operating rod 50), and both hook portions 71°''71 are attached to the rear end of the moving operating rod 50. The hook portion 71 is removably disposed and is removably engaged with the engagement plate 53.
The rod 67 is set so as to engage with the engagement plate 53 and move the engagement plate 53 backward only when the rod 67 is biased in the direction of drawing it into the cylinder. The operation of the high pressure gas injection device according to the embodiment will be explained. First, when filling with high pressure gas, the entire device is held in the state shown in FIG. do. As a result, the supply section 2
The high pressure gas from 4 is pressurized into the pressurized storage chamber 20 of the main body 10 via the booster 23 and the injection pipe 22, and the desired gas is stored in the pressurized storage chamber 20 at a sufficiently high pressure. The required pressure filling is achieved.

Note that when filling with gas, the safety valve 27 is set to an open state so that the pressure in the injection path 16 can be released. Then, just before gas injection, the safety valve 27 is returned to its original closed state.

As described above, when the pressure filling of the pressurizing agent storage chamber 20 with the high pressure gas is completed, the dregs can be injected.

So 1. - When the drive cylinder 66 of the opening operation part C is moved backward (energizing the rod 67 in the direction of drawing it into the cylinder) as an f-spray injection operation, the rod 67 instantly retreats by a predetermined movement stroke S. A pair of operating members 68
, 68.

Knock part '7 formed on both operating members 68 and 68 at the second time
', , 7L, the movable operating rod 50 that engages through the engagement plate 53 is instantly pulled, and the piston valve 54
Then, the buffer valve 57 is moved and displaced to the state shown in FIG.

That is, by moving the moving operating rod 50, the piston valve 5
4 is moved backward by a stroke S from the closed position P1 and is held at a preset opening starting position P2, as shown in FIG. Aligning with the recess 19, all gas introduction holes 17 are slightly opened. On the other hand, the buffer valve 57
As shown in Figure (b), the first chamber portion 38a of the buffer chamber 38 is instantaneously displaced backward into the tapered chamber portion 38c, and a portion thereof (the right end portion in the figure) is tightly fitted into the entrance of the second chamber portion 38b. start.

At the time when the piston valve 54 is held at the opening starting position P2 in this way, all the gas introduction holes 17 and the injection passages 16 are communicated through the recesses 19. As a result, a portion of the high-pressure gas stored in the pressurized storage chamber 2° instantly flows into the injection path 16 from all the gas introduction holes L7 through the recess 19. At the same time,
The pressure of the high pressure gas that has flowed into the injection path 16 acts on the front end surface of the piston valve 54. At this time, a part of the high-pressure gas flows through each waste removal hole 5S of the piston valve 54 and flows into the rear of the injection path 16, so that the gas pressure acting on the piston valve 54 is appropriately reduced. be done.

As mentioned above, the high pressure gas flowing into the injection passage 16 exerts its pressure on the piston valve 54 . The buffer valve 57 and the moving operating rod 50 are simultaneously retracted, changing to the state shown in FIG. That is, the piston valve 54 at the opening starting position P2 is displaced to the rear end within the injection path 16, and the buffer valve 57 is displaced to the rear end within the second chamber portion 38b of the buffer chamber 38. Note that the moving operation rod 5o extends its rear end into the support member 60 of the opening operation section C, and is connected to the operation member 68.
．． 68 is disengaged.

By retracting the piston valve 54, the high pressure gas in the pressurized storage chamber 20 instantly flows into the injection path 16. That is, the piston valve 54 instantaneously retreats from the opening starting position P, and when the introduction guide portion 54a moves to the rear side (right side) of the recess 19, all the gas introduction holes 17 are fully opened at once. Therefore, the incoming high pressure gas from the pressurized storage chamber 20 is
The gas instantly flows into the injection path 6 through the gas introduction hole 17. At the same time, this input amount of high pressure gas is
The particles are injected all at once from within the injection path 16 toward the loading device 80 in the high-speed projectile launch system.

The large pressure (energy) is applied directly to the flying object inside the loading section.

As a result, in the high-speed projectile launch system, the projectile flies instantaneously at high speed inside the launch tube 82, rushes into the sample storage device 83, and collides with the workpiece material (sample) with large impact energy. For example, it can effectively perform various physical tasks such as breaking and punching using instantaneous shearing force. Furthermore, in the case of the launch system, we have explained the case in which it is applied to a test in which a high-speed projectile collides with a sample to analyze its physical properties, etc., but this is not limited to this and can be applied to various fields. .

As mentioned above, at the moment when the high pressure gas in the pressurized storage chamber 20 flows into the injection path 6 and is injected into the loading device 80, the piston valve 54 is activated to In order to receive a large pressure, the opening starting point if P
2 to the fully open position P. The 1!7 reaction force of the piston valve 54 can be appropriately buffered in the buffer section B.

That is, as shown in FIGS. 4(a) and 4(b) comparing the displacement of the piston valve 54 and the displacement of the buffer valve 57, the piston valve 54 is fully rotated [P3 and For each successive displacement to the rear end position, the buffer valve 57
moves from the Taber chamber 38c of both a chambers 38 into the entrance of the second chamber 38b, and then successively moves to the center and then to the rear end while maintaining a tightly fitted state. During the displacement process of the buffer valve 57, the fluid filled in the buffer chamber 38 changes in flow as the volume of each chamber in the buffer chamber 38 changes. In other words, the fluid within the second chamber portion 38b is.

It is pushed by the fluctuating pressure of the buffer valve 57, flows from the second flow path 39b of the bypass path 39, and flows into the main flow path 39c.
The liquid is returned to the first chamber 38a through the first flow path 39a.

In this way, the buffer valve 57 is connected to the second chamber 38b of the buffer chamber 38.
A buffering action in which the fluid in the buffer chamber 38 is continuously displaced while maintaining a tightly fitted state within the buffer valve 57, and a buffer flow in which the fluid in the buffer chamber 38 flows as the buffer valve 57 is displaced.

A synergistic damping effect is produced, and this synergistic damping effect can provide an excellent damping effect (damper effect) against the impact reaction of the piston valve 54.

In particular, this buffering effect can be achieved by selecting the flow rate adjustment member 40 inserted and set in the main flow path 39c.
It can help further. In other words, the flow rate adjusting member 4o can be replaced by appropriately selecting various types having different diameters and shapes. Therefore, by selectively replacing the flow rate adjustment member 40, the opening cross section and flow path shape of the main flow path 39c can be changed to the required conditions, and the fluid flow state can be appropriately changed (flow resistance changed). This buffering effect can be made even more effective, and an even more excellent buffering effect can be exhibited.

Note that the high-pressure gas injection device according to this embodiment remains in the state shown in FIG. 5 after the high-pressure gas is injected.

Therefore, when resetting to the state shown in FIG. 2 for the next press-filling and injection of high-pressure gas, first,
Forward operation of the drive cylinder 66 of the opening operation section C (rod 6
7 from the cylinder) and return the rod 67 to its original position, thereby returning the operating member 68 to its original engagement position. Next, operate the moving operation rod 50 to the left in the drawing to reach a non-moveable position, that is, a position where the left engagement plate 59 of the buffer valve 57 is in contact with the front inner end surface of the main body 30, although it is not visible from the outside. Push it all the way. As a result, the operating rod 50 is inserted and set accurately to the original movement start position, and the piston valve 54 and the buffer valve 57 are set to their respective predetermined positions. In addition, when pushing back the moving operation rod 50, the window 62 of the support member 60 is used as an operation opening.

As described in detail, the high-pressure waste injection device according to the present invention is suitably used as a gas injection unit for a flying object in a high-speed projectile launch system, and is capable of discharging a large amount of high-pressure waste stored in the gas injection unit. Gas can be injected all at once. In other words, by simply slightly opening the on-off valve, which is tightly fitted in the injection path of the gas injection part, to the opening starting point position,
A portion of the high-pressure gas in the pressurized storage chamber flows into the injection path, and the pressure instantly forcibly pushes the on-off valve.

As a result, the on-off valve is moved to the fully open position in a very short time, and at this moment, a large amount of high-pressure gas flows into the injection path all at once and is injected toward the loading section of the flying object. As a result, the high-pressure energy possessed by the gas can be effectively applied to the flying object, and the flying object can be instantaneously launched at high speed by the large injection pressure of the high-pressure gas.

Moreover, according to the high-pressure gas injection device of the present invention, in the moment when a large amount of high-pressure gas from the pressurized storage chamber flows into the injection path and is injected into the loading section of the projectile, the on-off valve is activated to control the high-pressure gas. Regarding sudden displacement from the open starting point position to the fully open position under considerable pressure from
In the buffer section, the impact reaction of the opening/closing valve can be appropriately buffered.

That is, in the buffer section, while the on-off valve is successively displaced from the opening starting point position to the fully open position and then to the rear end position, the buffer valve is tightly inserted into the buffer chamber from the large diameter chamber to the small diameter chamber. , the buffering action moves to the rear end of the small-diameter chamber while maintaining the tightly fitted state, and with this displacement of the buffer/valve, the fluid in the buffer chamber is transferred from the small-diameter chamber to the large one via the bypass path. A synergistic buffering effect is produced by the buffering flow flowing into the diameter chamber, and this synergistic buffering effect can exert an excellent buffering effect (damper effect) against the impact reaction of the opening/closing valve. .

In particular, in the high-pressure gas injection device of the present invention, various flow rate adjusting members having different diameters and shapes can be appropriately selected and inserted and set in a replaceable manner in the bypass path attached to the buffer chamber. Therefore, by selectively replacing the flow rate adjusting member,
By changing the opening cross section and flow path shape of the bypass passage to the required conditions, it is possible to set the fluid flow state appropriately, and the resulting buffering effect is made even more effective, resulting in an even better buffering effect. It is something that can be done.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view with some parts omitted showing a preferred embodiment of the high-pressure waste injection device according to the present invention, FIG. 2 is a partially cutaway front view showing the injection device in the closed position, and FIG. The diagram is
FIG. 4 is a partially cutaway front view showing the opening start position of the injection device; FIG. 4 is a cross-sectional view showing the opening start position of FIG. 3 in detail; FIG. FIG. 4(b) shows the displaced state of the buffer valve. FIG. 5 is a partially cutaway front view showing the injector in the fully open position. FIGS. 6 and 7 are respectively VI-VI in Figure 2
line. The side sectional views, FIGS. 8 and 9 based on the ■-■ line, are the side sectional views based on the ■-■ line and ■-■ line in FIG. The figures are a side sectional view based on the X-X line, the XI-XI line, and the XIl line in FIG. FIG. 1 is a front view schematically illustrating the entire high-speed projectile launch system using an example injection device. A... Gas storage injection part B... Buffer part 10... Main body 17... Gas introduction hole 30... Main body 38a... First chamber 39... Bypass path 54... Piston valve 66... Drive cylinder 68... Operating member 8o... Loading device S... Stroke C... Opening operation part 16... Injection path 20... Pressure increase storage chamber 38... Buffer chamber 38b ...Second chamber 40...Current adjustment member 57...Buffer valve 67...Lot 50...Moving operation rod 82...Launching tube FIG, 4 fat FIG, 4 +b) 8C 57. ...Buffer valve FIG, 8 FIG, 6 17...Gas introduction hole FIG, 9 FIG, 7 9b 30...Body 38...! 1st chamber 38a...1st chamber 38b...2nd chamber 50...Movement operation rod 57...1 valve FIG, 10 FIG, 11 FIG, 12 30...Main body 5o...Movement operation Rod 68...operating member

Claims (1)

[Scope of Claims] A flying object made of a sublimable object such as dry ice loaded into a firing position in a flying object loading device (80) is transported at high speed through a firing tube (82) by the injection pressure of high-pressure gas. A high-pressure gas injection device used in a high-speed projectile launch system that performs a predetermined physical work by causing the projectile to fly and collide with some object, and is a gas storage injection device that constitutes the main body of the injection device. part (A), a buffer part (B) installed behind the gas storage and injection part (A) for absorbing and mitigating the impact reaction when the gas is injected, and an opening operation installed behind the buffer part (B). part (C), and is appropriately connected to the opening operation part (c),
a movable operation member (50) connecting a piston valve (54) in the gas storage and injection part (A) and a buffer valve (57) in the buffer part (B) to predetermined positions, the gas storage and injection part; In (A), an annular gas pressurization storage chamber (
20) and the annular gas pressurization storage chamber (20) are formed separately, and a gas injection path (16) coaxially communicates with the launch tube (82) via the projectile loading device (80). ), and a plurality of gas introduction holes formed in the radial direction on the same circumference of the annular gas pressurization storage chamber (20) and communicating the pressurization storage chamber (20) and the gas injection path (16). (17); and the piston valve (54), which is tightly fitted into the gas injection path (16) so as to be freely movable in the axial direction and opens and closes the plurality of gas introduction holes (17) simultaneously. and the buffer section (
In B), a large diameter chamber (30) is defined in the main body (30) and extends in the axial direction.
a) and a small diameter chamber (38b), and a buffer chamber (38) filled with a predetermined amount of fluid; a large diameter chamber (38a) and a small diameter chamber (38b) of the buffer chamber (38);
a fluid bypass passage (39) communicating with 38b);
The buffer is movably fitted into the buffer chamber (38), inserted into the large diameter chamber (38a) with an appropriate margin, and tightly fitted into the small diameter chamber (38b). Valve (5
7); and a fluid adjustment member (40) which is detachably inserted into the bypass passage (39) and is capable of changing and adjusting the width of the opening cross section for fluid circulation in the bypass passage (39).
In the opening operation part (C), the movement stroke (S) of the movable member (67) is matched with the opening/closing stroke (S) of the piston valve (54), and the movable member (67) a driving means (66) set to be able to move instantaneously, and a movable member (67) of the driving means (66) extending toward the main body (30) side of the buffer section (B). The moving operation member (50) has an axial center portion in the main body (30) of the buffer section (B) and the gas storage/injection section (A).
The rear end portion, which is movably inserted and supported within the gas injection path (16) of the buffer portion (B) and extends outside the main body (30), is connected to the operation member (C) of the opening operation portion (C). 68
), the piston valve (54) is connected to the front end, and the buffer valve (57) is disposed approximately in the center.