CN110986675A - Multistage piston cylinder type naked bullet gas ejection device and method - Google Patents
Multistage piston cylinder type naked bullet gas ejection device and method Download PDFInfo
- Publication number
- CN110986675A CN110986675A CN201911095157.6A CN201911095157A CN110986675A CN 110986675 A CN110986675 A CN 110986675A CN 201911095157 A CN201911095157 A CN 201911095157A CN 110986675 A CN110986675 A CN 110986675A
- Authority
- CN
- China
- Prior art keywords
- piston cylinder
- stage
- state
- multistage
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41F—APPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS, e.g. CANNONS; LAUNCHERS FOR ROCKETS OR TORPEDOES; HARPOON GUNS
- F41F7/00—Launching-apparatus for projecting missiles or projectiles otherwise than from barrels, e.g. using spigots
Abstract
The invention provides a multistage piston cylinder type bare bomb gas catapult launching device capable of reducing overload, which mainly comprises a device shell, a gas generator, a multistage piston cylinder and a low-pressure chamber. The technical scheme is that fuel gas sprayed from a fuel gas generator flows into a low-pressure chamber to establish low-pressure chamber pressure, acts on a pressure-bearing surface to form ejection force, and pushes a piston cylinder to move, so that a missile positioned above the piston cylinder is ejected. By means of the ejection mode, the speed and the acceleration of the missile during ejection can be effectively reduced, overload borne by the missile is reduced, meanwhile, the missile can be isolated from high-temperature gas, the space in the ejection device is effectively utilized, and the structural design is more reasonable.
Description
Technical Field
The invention relates to the technical field of missile launching, in particular to a multistage piston cylinder type bare missile gas launching device and a method, and particularly relates to a multistage piston cylinder type bare missile gas launching device capable of reducing overload.
Background
The ejection is to launch the missile by utilizing the power except the missile. During the launch, the missile's engine does not fire and is therefore also referred to as "cold launching". The ejection modes adopted at present mainly include compressed air type, hydraulic type, electromagnetic type and gas type.
The filling device for the power device for missile cold ejection, disclosed in patent document CN103557752B, comprises a rod-shaped connecting piece and a counterweight component, wherein one end of the rod-shaped connecting piece is used for fixedly connecting the power device, the counterweight component is arranged at the other end of the rod-shaped connecting piece, and a lifting ring is fixedly connected to the rod-shaped connecting piece.
In a traditional gas ejection mode, a gas generator and a low-pressure chamber are generally integrated, and high-temperature gas generated by the gas generator enters the low-pressure chamber to push the top surface of the low-pressure chamber and a missile above the low-pressure chamber to move. However, in the ejection mode, high-temperature fuel gas directly pushes the missile to move after entering the low-pressure chamber, so that the requirements on the wall thickness, the quality, the thermal protection performance and the like of the ejection device are high, and the missile is greatly overloaded. The invention provides an improved naked-projectile gas ejection scheme, namely a multistage piston cylinder type naked-projectile gas ejection device, which can reduce overload borne in the missile launching process, effectively utilize the space in the ejection device, ensure more reasonable structural design and reduce the requirement on a launching barrel.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a multistage piston cylinder type naked-bullet gas ejection device and a method.
The invention provides a multistage piston cylinder type bare bomb gas ejection device which comprises a low-pressure chamber, multistage piston cylinders, a gas generator and a device shell, wherein the low-pressure chamber is provided with a plurality of piston cylinders;
the device shell surrounds to form a low-pressure chamber;
the fuel gas generator is communicated with a low-pressure chamber gas path;
a multistage piston cylinder is telescopically arranged on the device shell; the multi-stage piston cylinder can be changed from a retraction state to a deployment state under the action of the fuel gas generator;
the retraction state refers to a state that the main body part of the multistage piston cylinder is positioned in the device shell;
the expansion state is a state that the main body part of the multistage piston cylinder protrudes to the outside of the device shell under the action of air pressure.
Preferably, 4 of the multistage piston cylinders are arranged on the device housing in a centrosymmetric manner.
Preferably, the multistage piston cylinder comprises a set number of piston cylinders; the set number of piston cylinders are sequentially sleeved with a multi-stage piston cylinder forming a withdrawing state.
Preferably, the piston cylinder comprises a cylindrical piston cylinder; the radial two ends of the cylindrical piston cylinder are provided with buckle structures; the buckle structure can limit the maximum expansion length of the piston cylinder, and the multi-stage piston cylinder can be gradually expanded to an expansion state under the action of the buckle structure.
Preferably, the piston cylinder further comprises a drop-proof design; in the multi-stage piston cylinder in the deployed state, the anti-drop design acts on the force transmission position, so that the piston cylinder of each stage can be kept stationary in the vertical state.
Preferably, one surface of the multistage piston cylinder, which is in direct contact with the missile, is marked as the end surface of the piston cylinder; sealing devices are arranged among the piston cylinders; and under the condition that the sealing device and the end face of the piston cylinder are sealed together, the fuel gas generated by the fuel gas generator is isolated from the missile.
Preferably, the gas generator is disposed within a multistage piston cylinder.
Preferably, the multistage piston cylinder type bare bomb gas ejection device further comprises an air leakage hole; the multi-stage piston cylinder in the unfolding state can be converted into a withdrawing state through the air leakage hole.
The invention provides a multistage piston cylinder type bare bomb gas ejection device which comprises a low-pressure chamber, multistage piston cylinders, a gas generator and a device shell, wherein the low-pressure chamber is provided with a plurality of piston cylinders;
the device shell surrounds to form a low-pressure chamber;
the fuel gas generator is communicated with a low-pressure chamber gas path;
a multistage piston cylinder is telescopically arranged on the device shell; the multi-stage piston cylinder can be changed from a retraction state to a deployment state under the action of the fuel gas generator;
the retraction state refers to a state that the main body part of the multistage piston cylinder is positioned in the device shell;
the expansion state refers to a state that the main body part of the multistage piston cylinder protrudes out of the device shell under the action of air pressure;
the 4 multi-stage piston cylinders are arranged on the device shell in a centrosymmetric manner;
the multistage piston cylinders comprise a set number of piston cylinders; a set number of piston cylinders are sequentially sleeved with multi-stage piston cylinders which form a withdrawing state;
the piston cylinder comprises a cylindrical piston cylinder; the radial two ends of the cylindrical piston cylinder are provided with buckle structures; the buckle structure can limit the maximum expansion length of the piston cylinder, and the multi-stage piston cylinder can be gradually expanded to an expansion state under the action of the buckle structure;
the piston cylinder also comprises an anti-drop design; in the multi-stage piston cylinder in the unfolding state, the anti-falling design acts on the force transmission position, so that the position of each stage of piston cylinder can be kept fixed in the vertical state;
marking one surface of the multistage piston cylinder, which is in direct contact with the missile, as the end surface of the piston cylinder; sealing devices are arranged among the piston cylinders; under the common seal of the sealing device and the end face of the piston cylinder, the fuel gas generated by the fuel gas generator is isolated from the missile;
the fuel gas generator is arranged in the multistage piston cylinder;
the multistage piston cylinder type naked-bomb gas ejection device further comprises an air leakage hole; the multi-stage piston cylinder in the unfolding state can be converted into a withdrawing state through the air leakage hole.
According to the multistage piston cylinder type bare bomb gas ejection method provided by the invention, the multistage piston cylinder type bare bomb gas ejection device is utilized, and the method comprises the following steps:
1) the fuel gas generator is ignited to generate a large amount of high-temperature high-pressure fuel gas;
2) the gas continuously enters the low-pressure chamber, and when the pressure reaches a certain degree, the multi-stage cylinder is pushed to be gradually unfolded, as shown in figure 2;
3) the multi-stage cylinder is unfolded to generate thrust to push the missile to move;
4) after the multi-stage cylinder is completely unfolded, the gas is discharged from the gas release hole, and the multi-stage cylinder completes the action of 'withdrawing';
5) and finishing the ejection.
Compared with the prior art, the invention has the following beneficial effects:
the technical problem to be solved by the invention is as follows: aiming at the traditional gas ejection mode, an improved naked bullet gas ejection scheme is provided, namely a multistage piston cylinder type naked bullet gas ejection device, wherein a plurality of piston cylinders are designed above a low-pressure chamber, and the guided missile is ejected out through the movement of the piston cylinders. By means of the ejection mode, the speed and the acceleration of the missile during ejection can be reduced, overload borne by the missile is reduced, meanwhile, the missile can be isolated from high-temperature gas, the space in the ejection device is effectively utilized, and the structural design is more reasonable.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic view of a multistage piston cylinder ejection device.
Fig. 2 is a schematic diagram of a multi-stage piston cylinder deployment.
Fig. 3 is a detailed view of the deployment state of the multi-stage piston cylinder.
FIG. 4 is a comparison of the acceleration of the missile motion.
FIG. 5 is a comparison of the velocity of the missile motion.
The figures show that:
Anti-drop design 6
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
The multistage piston cylinder type bare bomb gas ejection device provided by the invention comprises a low-pressure chamber 1, multistage piston cylinders 2, a gas generator 3 and a device shell 4;
the device shell 4 surrounds to form a low-pressure chamber 1;
the gas generator 3 is communicated with a low-pressure chamber 1 through a gas circuit;
a multi-stage piston cylinder 2 is telescopically arranged on the device shell 4; the multi-stage piston cylinder 2 can be changed from a retracted state to an expanded state under the action of the fuel gas generator 3;
the retracted state refers to a state in which the main body portion of the multistage piston cylinder 2 is located inside the device housing 4;
the expansion state is a state that the main body part of the multi-stage piston cylinder 2 protrudes to the outside of the device shell 4 under the action of air pressure;
the 4 multi-stage piston cylinders 2 are arranged on the device shell 4 in a centrosymmetric manner;
the multistage piston cylinder 2 comprises a set number of piston cylinders; a set number of piston cylinders are sequentially sleeved with multi-stage piston cylinders 2 which form a withdrawing state;
the piston cylinder comprises a cylindrical piston cylinder; the radial two ends of the cylindrical piston cylinder are provided with buckle structures; the buckle structure can limit the maximum expansion length of the piston cylinder, and the multi-stage piston cylinder 2 can be gradually expanded to an expansion state under the action of the buckle structure;
the piston cylinder further comprises an anti-drop design 6; in the multi-stage piston cylinder 2 in the unfolded state, the anti-drop design 6 acts on the force transmission position 5, so that the piston cylinder of each stage can keep the position fixed in the vertical state;
marking the surface of the multistage piston cylinder 2, which is in direct contact with the missile, as the end surface of the piston cylinder; sealing devices are arranged among the piston cylinders; under the common seal of the sealing device and the end face of the piston cylinder, the fuel gas generated by the fuel gas generator 3 is isolated from the missile;
the fuel gas generator 3 is arranged in the multistage piston cylinder 2;
the multistage piston cylinder type naked-bomb gas ejection device further comprises an air leakage hole; the multistage piston cylinder 2 in the deployed state can be switched to the retracted state through the air release hole.
According to the multistage piston cylinder type bare bomb gas ejection method provided by the invention, the multistage piston cylinder type bare bomb gas ejection device is utilized, and the method comprises the following steps:
1) the fuel gas generator is ignited to generate a large amount of high-temperature high-pressure fuel gas;
2) the gas continuously enters the low-pressure chamber, and when the pressure reaches a certain degree, the multi-stage cylinder is pushed to be gradually unfolded, as shown in figure 2;
3) the multi-stage cylinder is unfolded to generate thrust to push the missile to move;
4) after the multi-stage cylinder is completely unfolded, the gas is discharged from the gas release hole, and the multi-stage cylinder completes the action of 'withdrawing';
5) and finishing the ejection.
As shown in fig. 1 to 5, the multistage piston cylinder type bare bomb gas ejection device mainly comprises a device shell, a gas generator, a multistage ejection cylinder and a low-pressure chamber. The working principle of the missile launcher is that gas ejected from the gas generator flows into the low-pressure chamber to establish the pressure intensity of the low-pressure chamber, acts on the pressure bearing surface to form ejection force, and pushes the piston cylinder to move, so that a missile located above the piston cylinder is ejected. The multistage piston cylinder ejection device has 4 piston cylinder devices in total, and each piston cylinder device has a ten-stage piston cylinder.
The preferred multistage piston cylinder formula naked bullet gas jettison device of this invention includes: a low pressure chamber; a multi-stage piston cylinder; a gas generator; a device housing.
During ejection, high-temperature fuel gas continuously enters the low-pressure chamber, and the multistage piston cylinder is pushed to expand step by step after the pressure reaches a certain degree, so that the missile on the piston cylinder is ejected. The fuel gas generator is arranged in the middle of each piston cylinder. The ejection device directly transmits force to the ground, and all the piston cylinders are connected in parallel to work. The missile is isolated from high-temperature gas, and a sealing device is arranged between the piston cylinder and the cylinder. When the multi-stage cylinder is in a 'withdrawing' state, the bottom of each stage of cylinder is provided with an anti-falling design, so that each stage of oil cylinder keeps fixed in position in a vertical state. When the multi-stage oil cylinders are in a working and unfolding state, the thrust generated by the fuel gas is transmitted by the connecting parts among the oil cylinders. The top of each stage of oil cylinder is provided with a chamfer to prevent movement obstruction and stress concentration. After the multi-stage cylinder is completely unfolded, the fuel gas is discharged from the air release hole, and the multi-stage cylinder is retracted.
The ejection process is as follows:
1) the fuel gas generator is ignited to generate a large amount of high-temperature high-pressure fuel gas;
2) the gas continuously enters the low-pressure chamber, and when the pressure reaches a certain degree, the multi-stage cylinder is pushed to be gradually unfolded, as shown in figure 2;
3) the multi-stage cylinder is unfolded to generate thrust to push the missile to move;
4) after the multi-stage cylinder is completely unfolded, the gas is discharged from the gas release hole, and the multi-stage cylinder completes the action of 'withdrawing';
5) and finishing the ejection.
In the scheme, four groups of multi-stage cylinders are designed to work together, each group of multi-stage cylinders is composed of ten stages of cylinders, and the specific design is shown in figure 3. When the multi-stage cylinder is in a 'withdrawing' state, the bottom of each stage of cylinder is provided with an anti-falling design, so that the oil cylinder of each stage is kept fixed in position in a vertical state; when the multi-stage oil cylinders are in a working and unfolding state, the thrust generated by the fuel gas is transmitted by the connecting parts among the oil cylinders; the top of each stage of oil cylinder is provided with a chamfer to prevent movement obstruction and stress concentration.
The power for the missile to rise in the moving process is provided by the end faces of the piston cylinders in contact with the missile bottom, and the condition that the center of mass of the missile deviates from the center of thrust is not considered, so that the four piston cylinders are rapidly synchronized with the piston cylinders at other positions under the action of the pressure in the low-pressure chamber and the constraint of the missile bottom if the end faces of a certain piston cylinder are separated from the bottom face of the missile in the moving process of the missile. If the end face of one piston cylinder is not contacted with the bottom face of the missile due to factors such as initial installation error, the end face of the piston cylinder is not restricted by the bottom face of the missile, the gas pressure in the piston cylinder is completely used for accelerating the motion speed of the piston cylinder, and other piston cylinders contacted with the missile bottom bear the gravity of the missile, so the motion acceleration of the piston cylinder is far greater than that of other piston cylinders, the speed of the piston cylinder is rapidly increased, the end face is rapidly contacted with the missile bottom, and the piston cylinder is contacted with other piston cylinders to bear the gravity of the missile together to keep synchronization. The movements of the four piston cylinders can therefore always be considered to be synchronized.
The multistage piston cylinder type gas ejection generally directly transmits force to the ground, the structure is stable, all groups of piston cylinders work in parallel, and the system reliability is high. Under the same initial condition, the speed and the acceleration of the missile ejected by the multistage piston cylinder are smaller than those of the traditional gas ejection mode, the change is more gradual, the overload borne by the missile is smaller, the ejection process of the whole missile is more stable, and the multistage piston cylinder type ejection can be selected for certain ejection processes with limitation requirements on the overload and the cylinder discharge speed. In addition, structurally, the multi-stage piston cylinder ejection device can isolate the missile from high-temperature gas, and a sealing device is arranged between the piston cylinder and the cylinder, so that the sealing performance is better. And the multistage piston cylinder jettison device can install the gas generator in the centre of each piston cylinder, can effectively utilize the space in the jettison device, reduces the volume of jettison device for structural design is more reasonable, and compared, ordinary gas jettison device is great in size, and the space can not be utilized rationally, and the device is heavier.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A multistage piston cylinder type bare bomb gas ejection device is characterized by comprising a low-pressure chamber (1), a multistage piston cylinder (2), a gas generator (3) and a device shell (4);
the device shell (4) surrounds to form a low-pressure chamber (1);
the gas generator (3) is communicated with a gas path of the low-pressure chamber (1);
a multi-stage piston cylinder (2) is telescopically arranged on the device shell (4); the multi-stage piston cylinder (2) can be changed from a retraction state to a deployment state under the action of the fuel gas generator (3);
the retraction state refers to a state that the main body part of the multi-stage piston cylinder (2) is positioned inside the device shell (4);
the expansion state is a state that the main body part of the multi-stage piston cylinder (2) protrudes to the outside of the device shell (4) under the action of air pressure.
2. The multistage piston-cylinder-type bare-bomb gas ejection device according to claim 1, characterised in that 4 multistage piston cylinders (2) are arranged centrally symmetrically on the device housing (4).
3. The multistage piston-cylinder bare-bomb gas ejection device according to claim 1, characterised in that the multistage piston cylinder (2) comprises a set number of piston cylinders; the set number of piston cylinders are sequentially sleeved with the multi-stage piston cylinders (2) which form a withdrawing state.
4. The multi-stage piston cylinder bare projectile gas ejection device according to claim 3 wherein said piston cylinder comprises a cylindrical piston cylinder; the radial two ends of the cylindrical piston cylinder are provided with buckle structures; the buckle structure can limit the maximum expansion length of the piston cylinder, and the multi-stage piston cylinder (2) can be gradually expanded to an expansion state under the action of the buckle structure.
5. The multistage piston cylinder bare projectile gas ejection device according to claim 3, wherein said piston cylinder further comprises a drop prevention design (6); in the multi-stage piston cylinder (2) in the deployed state, a drop-proof design (6) acts on the force transmission point (5), so that the piston cylinder of each stage can remain stationary in the vertical state.
6. The multistage piston cylinder type bare projectile gas ejection device according to claim 3, wherein one surface of the multistage piston cylinder (2) in direct contact with the missile is marked as a piston cylinder end surface; sealing devices are arranged among the piston cylinders; under the common seal of the sealing device and the end face of the piston cylinder, the fuel gas generated by the fuel gas generator (3) is isolated from the missile.
7. The multistage piston-cylinder bare-bomb gas ejection device according to claim 1, characterised in that the gas generator (3) is arranged in a multistage piston cylinder (2).
8. The multi-stage piston cylinder type bare projectile gas ejection device according to claim 1, further comprising a gas release hole; the multi-stage piston cylinder (2) in the unfolding state can be converted into a withdrawing state through the air leakage hole.
9. A multistage piston cylinder type bare bomb gas ejection device is characterized by comprising a low-pressure chamber (1), a multistage piston cylinder (2), a gas generator (3) and a device shell (4);
the device shell (4) surrounds to form a low-pressure chamber (1);
the gas generator (3) is communicated with a gas path of the low-pressure chamber (1);
a multi-stage piston cylinder (2) is telescopically arranged on the device shell (4); the multi-stage piston cylinder (2) can be changed from a retraction state to a deployment state under the action of the fuel gas generator (3);
the retraction state refers to a state that the main body part of the multi-stage piston cylinder (2) is positioned inside the device shell (4);
the expansion state refers to a state that the main body part of the multi-stage piston cylinder (2) protrudes out of the device shell (4) under the action of air pressure;
the 4 multi-stage piston cylinders (2) are arranged on the device shell (4) in a centrosymmetric manner;
the multistage piston cylinders (2) comprise a set number of piston cylinders; a set number of piston cylinders are sequentially sleeved with multi-stage piston cylinders (2) which form a withdrawing state;
the piston cylinder comprises a cylindrical piston cylinder; the radial two ends of the cylindrical piston cylinder are provided with buckle structures; the buckle structure can limit the maximum expansion length of the piston cylinder, and the multi-stage piston cylinder (2) can be gradually expanded to an expansion state under the action of the buckle structure;
the piston cylinder further comprises an anti-drop design (6); in the multi-stage piston cylinder (2) in the unfolded state, a drop-proof design (6) acts on the force transmission position (5), so that the piston cylinder of each stage can keep the position fixed in the vertical state;
marking one surface of the multistage piston cylinder (2) which is directly contacted with the missile as the end surface of the piston cylinder; sealing devices are arranged among the piston cylinders; under the common seal of the sealing device and the end face of the piston cylinder, the fuel gas generated by the fuel gas generator (3) is isolated from the missile;
the fuel gas generator (3) is arranged in the multi-stage piston cylinder (2);
the multistage piston cylinder type naked-bomb gas ejection device further comprises an air leakage hole; the multi-stage piston cylinder (2) in the unfolding state can be converted into a withdrawing state through the air leakage hole.
10. A multistage piston cylinder type bare bomb gas ejection method, which is characterized in that the multistage piston cylinder type bare bomb gas ejection device of any one of claims 1 to 9 is used, and comprises the following steps:
1) the fuel gas generator is ignited to generate a large amount of high-temperature high-pressure fuel gas;
2) the gas continuously enters the low-pressure chamber, and when the pressure reaches a certain degree, the multi-stage cylinder is pushed to be gradually unfolded, as shown in figure 2;
3) the multi-stage cylinder is unfolded to generate thrust to push the missile to move;
4) after the multi-stage cylinder is completely unfolded, the gas is discharged from the gas release hole, and the multi-stage cylinder completes the action of 'withdrawing';
5) and finishing the ejection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911095157.6A CN110986675A (en) | 2019-11-11 | 2019-11-11 | Multistage piston cylinder type naked bullet gas ejection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911095157.6A CN110986675A (en) | 2019-11-11 | 2019-11-11 | Multistage piston cylinder type naked bullet gas ejection device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110986675A true CN110986675A (en) | 2020-04-10 |
Family
ID=70083802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911095157.6A Pending CN110986675A (en) | 2019-11-11 | 2019-11-11 | Multistage piston cylinder type naked bullet gas ejection device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110986675A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2781094Y (en) * | 2005-04-05 | 2006-05-17 | 北京交通大学 | Glass fiber reinforced plastic multi-stage cylinder with support ring |
| EP2530423A1 (en) * | 2011-05-31 | 2012-12-05 | Dcns | System for launching an underwater vehicle |
| CN103644166A (en) * | 2013-12-26 | 2014-03-19 | 淮北安来机电装备有限公司 | Oil/air cylinder with single cylindrical surface guide in inner cylinder hole |
| CN203584961U (en) * | 2013-10-23 | 2014-05-07 | 徐州徐工液压件有限公司 | Self-shock-absorbing multistage cylinder limiting structure |
| CN105240343A (en) * | 2015-11-19 | 2016-01-13 | 南京理工大学 | Self-buffering-type gas-liquid mixing multi-stage ejection mechanism |
| CN108999837A (en) * | 2018-09-30 | 2018-12-14 | 中国船舶重工集团公司第七〇九研究所 | Cylinder body oil inlet Double Acting Telescopic Hydraulic Cylinder |
-
2019
- 2019-11-11 CN CN201911095157.6A patent/CN110986675A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2781094Y (en) * | 2005-04-05 | 2006-05-17 | 北京交通大学 | Glass fiber reinforced plastic multi-stage cylinder with support ring |
| EP2530423A1 (en) * | 2011-05-31 | 2012-12-05 | Dcns | System for launching an underwater vehicle |
| CN203584961U (en) * | 2013-10-23 | 2014-05-07 | 徐州徐工液压件有限公司 | Self-shock-absorbing multistage cylinder limiting structure |
| CN103644166A (en) * | 2013-12-26 | 2014-03-19 | 淮北安来机电装备有限公司 | Oil/air cylinder with single cylindrical surface guide in inner cylinder hole |
| CN105240343A (en) * | 2015-11-19 | 2016-01-13 | 南京理工大学 | Self-buffering-type gas-liquid mixing multi-stage ejection mechanism |
| CN108999837A (en) * | 2018-09-30 | 2018-12-14 | 中国船舶重工集团公司第七〇九研究所 | Cylinder body oil inlet Double Acting Telescopic Hydraulic Cylinder |
Non-Patent Citations (3)
| Title |
|---|
| 唐垚: "多级活塞缸式燃气弹射内弹道的研究", 《固体火箭技术》 * |
| 白鹏英，乔军: "双级气缸式弹射装置内弹道分析", 《现代防御技术》 * |
| 范存德: "《液压技术手册》", 31 May 2004 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2459956B1 (en) | Deployable fairing and method for reducing aerodynamic drag on a gun-launched artillery shell | |
| CA1257496A (en) | Apparatus for recoilless firing of projectiles from a launching tube | |
| RU2267080C2 (en) | Shells (modifications) | |
| SE0002479L (en) | Methods and apparatus for artillery projectiles | |
| US6530305B1 (en) | Telescoping pressure-balanced gas generator launchers for underwater use | |
| US6234062B1 (en) | Telescopic piston | |
| CN110949693B (en) | Pneumatic type connecting and unlocking device | |
| US3086467A (en) | Gas operated extendible probe for ballistic model | |
| CN110986675A (en) | Multistage piston cylinder type naked bullet gas ejection device and method | |
| US5494239A (en) | Expandable ogive | |
| CN109436286A (en) | A kind of variation rigidity elastic force release acting device for ram-air turbine | |
| CN113048843A (en) | A catch net balanced emitter for catching unmanned aerial vehicle | |
| EP1556663B1 (en) | Projectile for rapid fire gun | |
| CN115127114B (en) | Ignition device for reaction gas gun and reaction gas gun | |
| CN110057242B (en) | Device and method for launching classified explosive chamber fire extinguishing bomb | |
| CN113834379B (en) | Method for launching supercritical carbon dioxide gas cannon | |
| CN113959276B (en) | Gas ejection multi-cartridge separation device capable of preventing chamber explosion | |
| US3468216A (en) | Hypervelocity gun having a hydraulic stage for velocity conversion | |
| WO1991007635A1 (en) | Projectile for the dispersal of a load in the form of a pyrotechnic charge | |
| US3107617A (en) | Ring decoy launching mechanism | |
| RU2551181C2 (en) | Method for obtaining additional pulse of missile thrust, and inter-stage accelerator for its implementation (versions) | |
| US9250049B1 (en) | Sabots for projectiles | |
| CN111288841B (en) | Multifunctional pneumatic device of air-guide type automatic machine | |
| CN107436113A (en) | A kind of combustion gas pressurized strut of gas buffer | |
| RU2166177C1 (en) | Cassette nose cone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200410 |
|
| RJ01 | Rejection of invention patent application after publication |