CN112377327A - Gas generating agent grain fixing structure of solid cold gas generator for space - Google Patents
Gas generating agent grain fixing structure of solid cold gas generator for space Download PDFInfo
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- CN112377327A CN112377327A CN202011127717.4A CN202011127717A CN112377327A CN 112377327 A CN112377327 A CN 112377327A CN 202011127717 A CN202011127717 A CN 202011127717A CN 112377327 A CN112377327 A CN 112377327A
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- fixing
- gas generator
- solid cold
- column
- cold gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/08—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using solid propellants
- F02K9/32—Constructional parts; Details not otherwise provided for
- F02K9/36—Propellant charge supports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/08—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using solid propellants
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
A gas generating agent charge column fixing structure of a solid cold gas generator for space comprises: the crossed wave-shaped axial buffering support ring and the radial buffering fixed arm. The crossed waveform axial buffering support ring is composed of a plurality of layers of waveform springs, one end of the crossed waveform axial buffering support ring is fixedly connected with the top of the radial buffering fixed arm, and the other end of the crossed waveform axial buffering support ring abuts against the igniter; the radial buffering fixed arm is used for clamping the explosive column in the shell of the solid cold gas generator, so that the explosive column is positioned below the igniter; the radial buffering fixed arm is supported between the outer wall of the chemical column and the inner wall of the solid cold gas generator shell, so that the chemical column and the solid cold gas generator shell are not contacted with each other, and a gap between the chemical column and the solid cold gas generator shell is used for guiding gas. Tests prove that the gas generant adopting the fixed structure of the invention has no fracture problem. The fixing structure of the solid cold air gas-producing agent resisting mechanical vibration is successfully applied in the rail, and rail control is successfully completed.
Description
Technical Field
The invention relates to a gas generating agent grain fixing structure of a solid cold gas generator for a space, belonging to the technical field of propulsion.
Background
In order to meet the requirements of quick response and reduction of the cost in the satellite development process, the satellite develops towards the modularization direction, the space propulsion system is required to be capable of being used in a plug-and-play mode, the assembly coupling period is reduced, and the filling period of a base is reduced.
CN 1103921956B solid cold air micro-propulsion system, Chong Ployd et al, Nanjing university of science and technology, proposes a solid cold air generator structure, as shown in the attached drawing of the specification, with the generator gas outlet at the bottom, the gas-producing agent charged with particles, low charge density, low gas production, high passive quality, porous charge affected by vibration during transportation and rocket launching, easy abrasion and pulverization, and the structure is not suitable for the requirement of the generator with large length-diameter ratio. Negative qualities include the thickness of the combustion chamber housing and the quality of the gas treatment layer (fine sand layer, activated carbon layer) in the nitrogen gas generant.
The defects can be overcome by adopting cylindrical charging, and the gas production rate of the generator per unit volume is effectively improved. The large length-diameter ratio grain is similar to solid rocket engine charge, and is different in that in the solid rocket engine, the composite solid propellant charge is cast and formed, is directly cast on the inner wall of the shell of the engine and is integrally formed with the shell, and secondary treatment is not needed. The single-base or double-base propellant is formed into a column shape by adopting a pressing process, but the propellant is added with an energy-containing coupling agent, the mechanical strength of the propellant column is high, the mechanical property of the propellant column can meet the mechanical requirement in the process of launching and transporting a rocket, and no protective measures need to be applied.
The solid cold gas generator is limited by working conditions, the gas generating agent grain is formed by pressing powder particles, and is easy to be powdered and broken after the grain collides with a fixed structure in the rocket launching stage, even breaks in severe cases, pollutes system products, causes the problems of series burning, flameout and the like of a plurality of generators, and seriously affects the working safety of the system.
The traditional gas production agent grain support ring is formed by bending a galvanized steel sheet, has high hardness and small elasticity, has limited buffer effect on vibration, cannot protect the grain, and is easy to break during mechanical vibration. After the explosive column is broken, in the subsequent vibration process, the broken surfaces interact with each other and are continuously rubbed and collided, and a large amount of gas producing agents form powder which escapes to the outside of the generator, so that a large broken gap is formed. Because the gap is large, the heat transfer is blocked by the heat transfer path of the gas generant during the end-face combustion of the charge (which conforms to the parallel layer combustion law), as shown in fig. 6. Meanwhile, the heat released by the reaction of the gas generating agent is relatively low, and the self-sustaining combustion cannot be realized only by convection heat exchange under the condition of heat transfer interruption, so that the gas generating agent cannot be maintained in a working temperature range, flameout failure is caused, and the gas generation amount is insufficient.
According to typical space environment mechanical conditions, a solid cold gas generator is subjected to mechanical tests, the fact that more fine powder falls out of the generator is found, the generator is taken down and shaken, and the sound of collision between a powder column and a generator shell can be heard.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, a gas production agent charge column fixing structure of a solid cold gas generator for space is provided, and a crossed waveform axial buffering support ring structure is adopted to realize an axial buffering fixing arm for a gas production agent; the restraint fixed structure of the whole grain of gas production agent plays a role in radially fixing the gas production agent, wraps the whole gas production agent and can play a role in self-restraining the solid gas production agent. The gas production agent is protected by the axial buffer support ring structure and the radial fixing effect, and a good anti-mechanical effect can be achieved.
The technical scheme of the invention is as follows:
a gas generating agent charge column fixing structure of a solid cold gas generator for space comprises: the cross wave-shaped axial buffer supporting ring and the radial buffer fixing arm are arranged on the fixing frame;
the crossed wave-shaped axial buffer supporting ring is composed of a plurality of layers of wave-shaped springs,
one end of the crossed wave-shaped axial buffering support ring is fixedly connected with the top of the radial buffering fixed arm, and the other end of the crossed wave-shaped axial buffering support ring abuts against the igniter;
the radial buffering fixed arm is used for clamping the explosive column in the shell of the solid cold gas generator, so that the explosive column is positioned below the igniter 1;
the radial buffering fixed arm is supported between the outer wall of the chemical column and the inner wall of the solid cold gas generator shell, so that the chemical column and the solid cold gas generator shell are not contacted with each other, and a gap between the chemical column and the solid cold gas generator shell is used for guiding gas.
Radial buffering fixed arm includes: the fixing ring, the fixing claw and the supporting arm;
a plurality of fixing claws are uniformly distributed on the fixing ring in the circumferential direction and are used for fixedly connecting one end of the crossed waveform axial buffering support ring;
a plurality of supporting arms are uniformly distributed on the fixing ring in the circumferential direction and are used for clamping the explosive columns;
the support arm is provided with a plurality of bending parts along the axial direction, so that the support arm is supported between the outer wall of the explosive column and the inner wall of the solid cold gas generator shell.
The plurality of bending parts of the supporting arm along the axial direction form a plurality of expansion sections and contraction sections which are connected in sequence;
the expansion section is used for supporting the inner wall of the solid cold gas generator shell;
the contraction section is used for supporting the outer wall of the explosive column;
the free end of the supporting arm is an expansion section, so that the medicine column is convenient to clamp.
The joint of the fixing ring and the supporting arm is provided with a bending part, and the bending part is used for avoiding the edge of the top end face of the explosive column.
The joint of the fixing ring and the fixing claw is provided with a notch, and the notch is used for reducing the bending stress of the fixing claw.
The connection mode between the crossed wave-shaped axial buffering support ring and the radial buffering fixing arm is any one of spot welding, bending fixing or bonding.
The radial buffering fixed arm is made of steel.
The radial buffering fixed arm is formed by cutting a 65Mn steel plate with the thickness of 0.1 mm.
The materials of the crossed wavy axial buffering support ring and the radial buffering fixed arm are 65 Mn.
Compared with the prior art, the invention has the beneficial effects that:
1) the invention provides a crossed waveform axial buffering support ring structure for a gas generator, which has the hardness of 45 HRC-48 HRC, and 2-3 layers of wave crests and wave troughs of each layer of waveform spring, so that the axial buffering and fixing of a gas generating agent are realized, and the damage or the fracture caused by the axial acting force generated by rocket launching to the axial extrusion force of the gas generating agent are prevented.
2) The invention provides a restraining and fixing structure of a whole gas production agent charge column, which plays a role in radially fixing the gas production agent, and an axial gas production agent fixing long arm is provided with an elastic bulge and can play a role in radially self-restraining a solid gas production agent, so that the charge column is flexibly protected, and the damage or fracture caused by the action of a radial acting force generated by rocket launching on the gas production agent is prevented.
3) The invention provides a method for connecting a plurality of crossed waveform support rings through spot welding and bonding, a multilayer waveform structure can play a better buffering role, and the spot welding process is optimized.
4) The axial buffer support ring is connected with the radial fixed long arm through bending or spot welding, and the connection is reliable and firm.
5) The invention provides a structure for fixing a support ring between a gas generating agent and a filter screen, which is pressed between the gas generating agent and the filter screen through the elastic action of the support ring to play a fixing role.
6) The invention provides a supporting ring material which is changed from a galvanized steel plate into 65Mn with better elasticity, and has better elasticity.
7) The gas production agent is protected by the axial buffer support ring structure and the radial fixing effect, and a good anti-mechanical effect can be achieved.
Drawings
FIG. 1 is a schematic view of a solid cold gas generator for a space propulsion system;
FIG. 2 is a schematic view of a fixed structure of a solid cold gas generating agent resisting mechanical vibration according to the present invention;
FIG. 3 is a schematic view of a plurality of cross-corrugated support rings in accordance with the present invention;
FIG. 4 is a schematic plan view of an axially cushioned stationary arm according to the present invention;
FIG. 5 is a schematic view of an axial buffering fixing arm structure of the present invention;
FIG. 6 is a schematic view of the blocking of thermal conduction by a gas generant.
Detailed Description
Through vibration experiment analysis, powder falling mainly refers to unstable fixation of the explosive column in the generator, and meanwhile, the explosive column is brittle. The present invention optimizes the internal support structure in view of the above problems. In order to prevent the gas-producing agent grain from being broken, prevent flameout faults and ensure the normal work of a generator, the invention provides a novel solid cold air gas-producing agent grain fixing structure resisting mechanical vibration, and the structural integrity of a gas-producing agent grain is ensured.
Application object of the invention a solid cold gas generator structure for space propulsion system, as shown in fig. 1, comprising: igniter 1, backing ring 2, filter screen 3, support ring subassembly 4, powder column 5, casing 6, U type bottom cap 7. One end of the igniter 1 extends out of the interior of the shell 6 to the top and is connected with the backing ring 2 through threads, and the backing ring 2 is positioned outside the shell 6; the grommet 2 serves to fix the axial position of the igniter 1. The outer wall of the igniter 1 is sleeved with a filter screen 3, and the filter screen 3 is positioned inside the shell 6; the explosive column 5, the support ring assembly 4 and the shell 6 are sleeved in sequence from inside to outside, and the explosive column 5 is arranged below the igniter 1 through the support ring assembly 4; the U-shaped bottom cover 7 is arranged below the grain 5; the U-shaped bottom cover 7 and the inner wall of the shell 6 are welded and fixed; a plurality of circular vent holes are uniformly distributed on the top of the shell 6 in the circumferential direction; the support ring assembly 4 is used for preventing the outer wall of the explosive column 5 from contacting the inner wall of the shell 6, and a gap between the outer wall of the explosive column 5 and the inner wall of the shell 6 is used for guiding gas; a plurality of notches are processed inwards along the radial direction on the outer wall of the U-shaped bottom cover 7, and the notches are used for enabling gas generated by combustion of the explosive column 5 to flow out of the shell 6.
The invention is described in further detail below with reference to the figures and the detailed description.
A gas generating agent charge column fixing structure of a solid cold gas generator for space, as shown in figure 2, comprises: a crossed wave-shaped axial buffering supporting ring 4a and a radial buffering fixed arm 4 b. The crossed corrugated axial buffer support ring 4a is composed of a plurality of layers of corrugated springs, and in the embodiment of the invention, the crossed corrugated axial buffer support ring 4a comprises three layers of corrugated springs.
One end of the crossed waveform axial buffering support ring 4a is fixedly connected with the top of the radial buffering fixed arm 4b, and the other end of the crossed waveform axial buffering support ring 4a is abutted against the igniter 1;
the radial buffering fixing arm 4b is used for clamping the explosive column 5 in a shell 6 of the solid cold gas generator, so that the explosive column 5 is positioned below the igniter 1;
the radial buffering fixing arm 4b is supported between the outer wall of the chemical column 5 and the inner wall of the solid cold gas generator shell 6, so that the chemical column 5 and the solid cold gas generator shell 6 are not in contact with each other, and a gap between the chemical column 5 and the solid cold gas generator shell 6 is used for guiding gas, so that the tail part of the chemical column 5 with large length-diameter ratio can obtain enough heat, self-sustained combustion is maintained, and the flameout problem is avoided.
As shown in fig. 4, the radial bumper fixing arm 4b includes: the fixing ring 4b1, the fixing claws 4b2, and the support arms 4b 3;
a plurality of fixing claws 4b2 are uniformly distributed on the fixing ring 4b1 in the circumferential direction, and the fixing claws 4b2 are used for fixedly connecting one end of the crossed wave-shaped axial buffering support ring 4 a;
a plurality of supporting arms 4b3 are uniformly distributed on the fixing ring 4b1 in the circumferential direction, and the supporting arms 4b3 are used for clamping the explosive columns 5;
the support arm 4b3 is provided with a plurality of bends in the axial direction so that the support arm 4b3 is supported between the outer wall of the charge 5 and the inner wall of the solid cold gas generator housing 6.
The plurality of bending parts of the support arm 4b3 along the axial direction form a plurality of expansion sections and contraction sections which are connected in sequence;
the expansion section is used for supporting the inner wall of the solid cold gas generator shell 6;
the contraction section is used for supporting the outer wall of the explosive column 5; the radial flexible protection of the explosive column 5 is realized.
The free end of the supporting arm 4b3 is an expansion section, which is convenient for clamping the explosive column 5. As shown in FIG. 5, an elastic protrusion 4b32 is provided in the middle of the supporting arm 4b3, and the elastic protrusion 4b32 faces the side of the grain 5 to separate the grain 5 from the tail end of the supporting arm 4b3, thereby preventing the tail end of the supporting arm 4b3 from scraping the grain 5.
The joint of the fixing ring 4b1 and the supporting arm 4b3 is provided with a bent part 4b31, and the bent part 4b31 is used for avoiding the edge of the top end face of the grain 5. Preventing the support arms 4b3 from scraping against the top edge of the grains 5.
Notches 4b21 are formed in the connecting portions of the fixing rings 4b1 and the fixing claws 4b2, and the notches 4b21 are used for reducing the bending stress of the fixing claws 4b2 and ensuring that the fixing claws 4b2 can be freely bent.
The connection mode between the crossed wave-shaped axial buffering support ring 4a and the radial buffering fixing arm 4b is any one of spot welding, bending fixing or bonding. The fixing claws 4b2 are opposite to the bending direction of the three supporting arms 4b3, and the fixing claws 4b2 are used for installing and fixing the crossed corrugated axial buffer supporting ring 4a, and the crossed corrugated axial buffer supporting ring 4a is put into the three fixing claws 4b2 to be fixed.
The radial buffering fixing arm 4b is made of steel. The radial buffering fixing arm 4b is formed by cutting a 65Mn steel plate with the thickness of 0.1 mm. The materials of the crossed wave-shaped axial buffering support ring 4a and the radial buffering fixed arm 4b are 65Mn, and after vacuum quenching treatment, the hardness is controlled to be 45 HRC-48 HRC.
As shown in fig. 3, the crossed wave-shaped axial buffer support ring is composed of three wave-shaped springs, the front end axial buffer structure is fixed on the connecting and fixing ring, and the three axial buffer fixing arms are fixed on the circular support ring. The support ring is formed by bending a galvanized steel plate, the hardness is high, the elasticity is low, the buffering effect on vibration is limited, the support ring for protecting the explosive column is optimally designed, the support ring material is changed into 65Mn with better elasticity from the galvanized steel plate, and the three axial buffering fixing arms completely wrap the gas generating agent. Meanwhile, a wave spring with stable supporting force is arranged on the supporting ring, and better radial and axial supporting and buffering protective backing rings are provided for the explosive column, so that the igniter and the shell cannot rotate mutually, and the assembly of the propelling module is facilitated.
The solid cold air gas-producing agent fixing structure resisting mechanical vibration designed by the invention can solve the problem of mechanical vibration fracture of the gas-producing agent with a large length-diameter ratio and ensure the integrity of a gas-producing agent grain.
The generator with the improved support ring is subjected to identification level mechanical test, 10 generators with optimized support rings are assembled for identification level mechanical test, and the problem that the gas generating agent is not fractured due to the adoption of the solid cold gas generating agent fixed structure resisting mechanical vibration is verified through tests. The fixing structure of the solid cold air gas-producing agent resisting mechanical vibration is successfully applied in the rail, and rail control is successfully completed.
The generator assembly 8 times of the improved support ring is tested and verified by aiming at the gas generating agent, after the mechanical experiment according to the identification level, no powder is found at the outer end of the generator, X-ray inspection is carried out, the explosive columns are intact, and no cracks or explosive column fracture phenomena are found. And an ignition verification experiment is carried out on the generator subjected to mechanics, and the ignition is normal.
The generator before and after the dissection optimization is verified by an identification-level mechanical experiment, so that the problem of powder falling of the generator is effectively solved, and the optimized generator and the optimized explosive column are intact.
Those skilled in the art will appreciate that the details of the invention not described in detail in the specification are within the skill of those skilled in the art.
Claims (9)
1. A space is with solid cold gas generator gas production agent grain fixed knot structure which characterized in that includes: a crossed wave-shaped axial buffering support ring (4a) and a radial buffering fixed arm (4 b);
the crossed wave-shaped axial buffer support ring (4a) consists of a plurality of layers of wave-shaped springs;
one end of the crossed waveform axial buffering support ring (4a) is fixedly connected with the top of the radial buffering fixed arm (4b), and the other end of the crossed waveform axial buffering support ring (4a) is propped against the igniter (1);
the radial buffering fixing arm (4b) is used for clamping the explosive column (5) in a shell (6) of the solid cold gas generator, so that the explosive column (5) is positioned below the igniter (1);
the radial buffering fixing arm (4b) is supported between the outer wall of the chemical column (5) and the inner wall of the solid cold gas generator shell (6), the chemical column (5) and the solid cold gas generator shell (6) are not contacted with each other, and a gap between the chemical column (5) and the solid cold gas generator shell (6) is used for guiding gas.
2. A space solid cold gas generator gas generant grain fixing structure as claimed in claim 1 wherein the radial buffering fixing arm (4b) comprises: a fixing ring (4b1), a fixing claw (4b2) and a supporting arm (4b 3);
a plurality of fixing claws (4b2) are uniformly distributed on the fixing ring (4b1) in the circumferential direction, and the fixing claws (4b2) are used for fixedly connecting one end column (5) of the crossed wavy axial buffering support ring (4 a);
a plurality of supporting arms (4b3) are uniformly distributed on the fixing ring (4b1) in the circumferential direction, and the supporting arms (4b3) are used for clamping the explosive columns (5);
the supporting arm (4b3) is provided with a plurality of bending parts along the axial direction, so that the supporting arm (4b3) is supported between the outer wall of the drug column (5) and the inner wall of the solid cold gas generator shell (6).
3. The gas generating agent column fixing structure of the solid cold gas generator for space use as claimed in claim 2, wherein the plurality of bent portions of the supporting arm (4b3) along the axial direction form a plurality of expanding sections and contracting sections which are connected in sequence;
the expansion section is used for supporting the inner wall of the solid cold gas generator shell (6);
the contraction section is used for supporting the outer wall of the explosive column (5);
the free end of the supporting arm (4b3) is an expansion section, which is convenient for loading the explosive column (5).
4. The gas generating agent grain fixing structure of the solid cold gas generator for the space as claimed in claim 2 or 3, wherein a bent part (4b31) is arranged at the joint of the fixing ring (4b1) and the supporting arm (4b3), and the bent part (4b31) is used for avoiding the edge of the top end face of the grain (5).
5. The gas generating agent charge column fixing structure of the solid cold gas generator for the space as claimed in claim 4, wherein the joint of the fixing ring (4b1) and the fixing claw (4b2) is provided with a notch (4b21), and the notch (4b21) is used for reducing the bending stress of the fixing claw (4b 2).
6. The gas generating agent charge column fixing structure of the solid cold gas generator for space use as claimed in claim 4, wherein the connection mode between the crossed wavy axial buffering support ring (4a) and the radial buffering fixing arm (4b) is any one of spot welding, bending fixing or bonding.
7. A space solid cold gas generator gas generant grain fixing structure as claimed in claim 6 wherein the radial buffering fixing arm (4b) is made of steel.
8. The gas generant grain fixing structure of solid cold gas generator for space use according to claim 7 characterized in that the radial buffering fixing arm (4b) is cut and formed by a 65Mn steel plate with a thickness of 0.1 mm.
9. The gas generant grain fixing structure of solid cold gas generator for space use according to claim 6 characterized in that the material of the crossed wave shaped axial buffering support ring (4a) and the radial buffering fixing arm (4b) is 65 Mn.
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| CN202011127717.4A CN112377327B (en) | 2020-10-20 | 2020-10-20 | Gas generating agent grain fixing structure of solid cold gas generator for space |
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| CN202011127717.4A CN112377327B (en) | 2020-10-20 | 2020-10-20 | Gas generating agent grain fixing structure of solid cold gas generator for space |
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| CN112377327B CN112377327B (en) | 2021-09-03 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4630539A (en) * | 1985-06-24 | 1986-12-23 | The United States Of America As Represented By The Secretary Of The Army | Device for flash suppression of a rocket motor |
| CN106121862A (en) * | 2016-08-11 | 2016-11-16 | 西北工业大学 | A kind of solid rocket motor grain fixing device |
| CN107642435A (en) * | 2016-12-16 | 2018-01-30 | 湖北航天化学技术研究所 | A kind of adjustable thrust, it can repeatedly start automatically controlled solid engine |
| CN208702569U (en) * | 2018-08-10 | 2019-04-05 | 陕西核普机电科技有限公司 | Rocket igniter |
| CN109611239A (en) * | 2018-12-11 | 2019-04-12 | 上海新力动力设备研究所 | Gas generator powder column support construction |
| CN110294087A (en) * | 2019-07-04 | 2019-10-01 | 湖北航鹏化学动力科技有限责任公司 | A kind of air inflation raft gas generator |
| CN110758312A (en) * | 2019-10-28 | 2020-02-07 | 湖北航天化学技术研究所 | Gas generator |
-
2020
- 2020-10-20 CN CN202011127717.4A patent/CN112377327B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4630539A (en) * | 1985-06-24 | 1986-12-23 | The United States Of America As Represented By The Secretary Of The Army | Device for flash suppression of a rocket motor |
| CN106121862A (en) * | 2016-08-11 | 2016-11-16 | 西北工业大学 | A kind of solid rocket motor grain fixing device |
| CN107642435A (en) * | 2016-12-16 | 2018-01-30 | 湖北航天化学技术研究所 | A kind of adjustable thrust, it can repeatedly start automatically controlled solid engine |
| CN208702569U (en) * | 2018-08-10 | 2019-04-05 | 陕西核普机电科技有限公司 | Rocket igniter |
| CN109611239A (en) * | 2018-12-11 | 2019-04-12 | 上海新力动力设备研究所 | Gas generator powder column support construction |
| CN110294087A (en) * | 2019-07-04 | 2019-10-01 | 湖北航鹏化学动力科技有限责任公司 | A kind of air inflation raft gas generator |
| CN110758312A (en) * | 2019-10-28 | 2020-02-07 | 湖北航天化学技术研究所 | Gas generator |
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