CN203249545U - Gas generator for baits - Google Patents
Gas generator for baits Download PDFInfo
- Publication number
- CN203249545U CN203249545U CN 201320263600 CN201320263600U CN203249545U CN 203249545 U CN203249545 U CN 203249545U CN 201320263600 CN201320263600 CN 201320263600 CN 201320263600 U CN201320263600 U CN 201320263600U CN 203249545 U CN203249545 U CN 203249545U
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- cylindrical shell
- combustion chamber
- medicine
- medicine glass
- gas generator
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Abstract
Disclosed is a gas generator for baits. An igniter cover is arranged at the upper end of a barrel body. A connection end cover is arranged at the lower end of the barrel body. An inner cavity of the barrel body is divided into a primary combustion chamber, a secondary combustion chamber and a tertiary combustion chamber. A filtering net is arranged at the lower portion inside the barrel body. More than one exhaust port is formed in the barrel wall of the barrel body. A first medicine cup and a second medicine cup are arranged inside the tertiary combustion chamber. Cooling agents are arranged inside the first medicine cup and the second medicine cup. The bottom of the first medicine cup and the bottom of the second medicine cup are respectively provided with a bottom hole. A buffering part is arranged at the upper portion of the first medicine cup. A gas-forming medicine column and a gas-forming tablet are arranged inside the secondary combustion chamber. A medicine barrel, a buffering component, a second partition plate and an ignition tablet are arranged inside the primary combustion chamber. Ignition medicine granules are arranged inside a central hole of the ignition tablet. A first partition plate and an igniter are arranged at the upper portion of the ignition tablet. A pulling pin at the upper end of the igniter extends out of the igniter cover. An exhaust groove is formed in the barrel wall of the medicine barrel. A hole is formed in the bottom of the medicine barrel. An exhaust channel is formed between the gas-forming medicine column and the inner wall of the barrel body of the secondary combustion chamber. The gas generator has the advantages that the ignition time of gas is adjustable, the internal pressure is small, the radial dimension is small, the outlet temperature is low, the pressure is adjustable, repeated and stable, filtration is good, and the overload is resisted.
Description
Technical field
The utility model relates to a kind of capsule clothing to the bait bullet provides the gas generator of the high-altitude with uniform temperature air-flow.After rocket projectile, shell and MISSILE LAUNCHING, the infrared thermal source of this physical efficiency of generator, and fill hot gas to air bag.
Background technology
At present, the common gas generator that is used for airbag aeration has two kinds of pie and tubulars, and its structure mainly is to be assembled by ignition system, gas producing medicinal, filtration/cooling system, metal shell and metal film.When extraneous signal of telecommunication is done the time spent, electric detonator in the ignition system is excited and the point of ignition gunpowder, the high-temperature particle that ignition charge produces or high temperature gas flow are lighted the gas generant composition in accordance in the combustion chamber after by fire hole, a large amount of gases at high pressure that gas generant composition in accordance produces after filtration/break through metal film after cooling system slagging-off and the cooling, exhaust outlet from metal shell is discharged, and finishes the gas replenishment process to air bag.But this class generator all has very high requirement to the intensity of air bag; Working time is very of short duration, usually about 40ms; The outlet fuel gas temperature is high and have flame to spray.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and a kind of bait gas generator is provided, and it makes things convenient for the capsule clothing folding, is convenient to install, and has avoided the restriction of female bullet narrow space.
The technical solution of the utility model is: the cylindrical shell upper end is provided with the igniter cover, and the lower end is provided with the connection end cap; Cylinder lumen is divided into three parts, is followed successively by from top to bottom: first-stage firing chamber, secondary combustion chamber, three grades of combustion chambers;
The bottom is provided with screen pack in the described cylindrical shell; The corresponding screen pack of described cylindrical shell barrel place is provided with an above exhaust outlet; Be provided with medicine glass II in three grades of combustion chambers on described screen pack top; Medicine glass II top is provided with medicine glass I; Be provided with cooling agent in described medicine glass I, the medicine glass II; Medicine glass II bottom is provided with the medicine glass II bottom outlet that is connected with exhaust outlet; Medicine glass I bottom is provided with the medicine glass I bottom outlet that is connected with secondary combustion chamber;
Described medicine glass I top is provided with buffer unit one; In the secondary combustion chamber on buffer unit one top gas production charge column is housed; Gas production charge column top is provided with the aerogenesis tablet;
Be provided with cartridge case in the first-stage firing chamber on described aerogenesis tablet top; Described cartridge case bottom is provided with buffer unit two; Buffer unit two tops are provided with dividing plate II; Dividing plate II top is provided with the tablet that ignites; The centre bore of the described tablet that ignites is in-built a powder grain; The tablet top of igniting is provided with dividing plate I; Dividing plate I top is provided with igniter; Pulling pin of igniter upper end stretched out outside the igniter cover;
The barrel of described cartridge case is provided with air discharge duct; Described cartridge case bottom is furnished with the hole that is connected with secondary combustion chamber;
Be provided with the exhaust passage between described gas production charge column and the secondary combustion chamber's cylinder inboard wall.
Described gas production charge column has tapering, and its tapering is 2 degree ~ 5 degree; Described gas production charge column is fixed in cylinder inboard wall through large end locating ring, small end locating ring.
Cylindrical shell circumference between described secondary combustion chamber, the three grades of combustion chambers is provided with inwardly recessed recess; Described recess is an annular groove or by two segments in a circular shape groove or pits more than three that form with upper groove.
Described cylindrical shell is provided with corresponding to place, three grades of combustion chambers and tops bar, is used for getting out of a predicament or an embarrassing situation of location screen pack for location medicine glass II.
Be coated with heat insulation layer on the outer wall of described cylindrical shell corresponding to place, three grades of combustion chambers; Described heat insulation layer is loaded on the draw-in groove of cylinder body outer wall.
Described cylindrical shell upper end, lower end are provided with the internal thread for mounting points firearm cover, connection end cap; Described upper end internal thread is opposite with the thread rotary orientation of lower end internal thread; Described igniter cover, link cover and are provided with the external screw thread that is connected for screw-internal thread fit on the cylindrical shell.
Described medicine glass I is provided be used to making the smooth and easy side channel that flows to three grades of combustion chambers of gas.
The draw ratio of described cylindrical shell is 5 ~ 10.
Described exhaust outlet is 2 ~ 6, circumferentially is evenly arranged along cylindrical shell.
Described igniter axially draws the mechanical point firearm of sending out for adopting.
The rational deployment form of the utility model by adopting the design of suitable medicine shape, unique exhaust passage set-up mode, cooling agent, axially draw send out a sparking mode, free style filling prescription formula, large draw ratio design form, to the reasonable arrangement of each combustion chamber, realize longevity of service, chamber pressure is low, outlet pressure steadily, filter well, outlet temperature is low, cleaning gas, characteristics that residue is few.By rational layout, the design of medicine glass, cartridge case, buffer unit and locating slot guarantees that medicament is squeezed not bad under high overload, keeps the smooth combustion state.
Characteristics of the present utility model are:
1) the utility model can be applicable to various shells, rocket projectile, guided missile transmitted at high speed occasion, is used for the function of inflation and generation infrared signature signal.
2) it is flexible that outlet pressure is adjusted means, owing to adopt the mode of freely loading medicine, outlet pressure can be adjusted by tablet thickness and diameter and dose.
3) the generator draw ratio is high, totally is long tubular.
4) generator adopts axial force to draw and sends out igniter, and igniting is reliable.
5) the generator exhaust passage is long, and the gas cooling fully.
6) the generator exhaust port area is large, and chamber pressure is low.
7) adopt cooling agent gas to be carried out the adjusting of temperature.Cooling agent is arranged on the position of adjacent exhaust outlet, has guaranteed that all gas all can effectively be lowered the temperature.
8) combustion chamber is relatively independent, and medicament wherein can not push mutually, can protect medicament, has guaranteed the reliability of burning.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Among the figure, 1 igniter cover, 2 cartridge cases, 3 igniters, 4 cylindrical shells, 5 dividing plate I, 6 tablets that ignite, 7 igniting powders, 8 dividing plate II, 9 buffer units, 10 aerogenesis tablets, 11 gas production charge columns, 12 buffer units, 13 medicine glass I, 14 medicine glass II, 15 cooling agents, 16 screen packs, 17 connect end cap, 18 first-stage firing chambers, 19 secondary combustion chamber, 20 3 grades of combustion chambers, 21 get out of a predicament or an embarrassing situation, 22 large end locating rings, 23 small end locating rings, 25 exhaust passages, 26 heat insulation layers, 27 recesses, 28 exhaust outlets, 29 draw-in grooves, 30 medicine glass I end faces, 31 air discharge ducts, 32 first-stage firing chamber cylinder inboard walls, 33 pull pin, 34 centre bores, 35 cylinder inboard walls, 36 medicine glass I bottom outlets, 37 side channels, 38 medicine glass II bottom outlets, 39 top bar.
The specific embodiment
Among Fig. 1, the utility model main body by cover such as the metal igniter of the metal cylindrical shells 4 such as one section steel alloy, stainless steel, mild steel and the duralumin that is connected cylindrical shell 4 two ends, superduralumin etc. 1 be connected end cap 17 and consist of.Cylindrical shell 4 draw ratios can guarantee minimizing of the folding rear whole bait volume of capsule clothing like this between 5 ~ 10.Because the diameter of female bullet determines, guarantee that bait can pack into wherein smoothly, must strict its radial dimension of control, less volume is convenient to shoot on the one hand, can avoid on the other hand capsule clothing injury under very large extruding force.
Cylindrical shell 4 two ends are processed with the opposite screw thread of rotation direction, and the mode that is threaded connection is connected with igniter and is connected end cap and connects, by arrange derotation to screw thread avoided in the process of volume capsule clothing, causing the igniter cover or connecting the phenomenon that end cap gets loose.The cylindrical shell wall thickness is in 0.2 ~ 1.5mm scope, can bear larger internal pressure.
Cylindrical shell 4 interior spaces are divided into three parts, comprise first-stage firing chamber 18, secondary combustion chamber 19, three grades of combustion chambers 20.Axially contacting in first-stage firing chamber 18, secondary combustion chamber 19, three grades of combustion chambers 20, communicates between each combustion chamber.Generator Chinese medicine burning order is: first-stage firing chamber 18 Chinese medicines burn first, then be the medicament burning in the secondary combustion chamber 19, the high temperature gas flow that medicament burning in I and II combustion chamber produces and/or hot particle be during through three grades of combustion chambers 20, the medicament in the three grades of combustion chambers 20 of can igniting.
Mechanical type igniter 3 and cartridge case 2 are arranged in the first-stage firing chamber 18.Mechanical point firearm 3 will (axially draw send out) be pulled pin by axial force and 33 is extracted and excite.Withdrawal force is less than 100 Newtonian times, pulls pin 33 can not be pulled out.When withdrawal force greater than 100 Newtonian times, pulling pin 33 can be pulled out.Igniter by axial force draw send out after, at first light the medicament in the first-stage firing chamber 18.Adopt axial force to draw the mode of sending out, so that the utility model is simple in structure, igniting is reliable.
Buffer unit 9, dividing plate II8, igniting powder 7 are housed in the cartridge case 2 successively, tablet 6 and dividing plate I5 ignite; Igniting is packaged with igniting powder 7 in the centre bore 34 of tablet 6, and igniting powder 7 specifications are 8 ~ 12 orders.The igniting powder encapsulates by nitrocellulose solution.The a plurality of circumferentially symmetrical air discharge ducts 31 of cartridge case 2 sides processing.Air discharge duct 31 length extend to the end face of cartridge case 2 always, and number is 2 ~ 6,4 the bests.Form the exhaust passage between air discharge duct 31 on cartridge case 2 sidewalls and the first-stage firing chamber cylinder inboard wall 32.The axial section shape of air discharge duct 31 is rectangle and/or circular arc.Buffer unit 9 in the cartridge case 2 has that elasticity is moderate, hardness is moderate, permanent deformation resistance is strong, the aging-resistant characteristics, can be rubber ring, rubber blanket, metal spring and/or elastic sheet metal, can under greater than the load of 2000 acceleration of gravity, breakage not occur with the tablet 6 that ignites by guarantee point powder grain 8.Cartridge case 2 bottoms are distributed with the hole of different-diameter.
Igniter cover 1 be connected end cap 17 axial lateral walls on be processed with screw thread, connect in the screw thread by precession cylindrical shell 4 two ends.Thread rotary orientation on the igniter cover 1 axial lateral wall is opposite with the thread rotary orientation on being connected end cap 17 axial lateral walls: when the thread rotary orientation on the igniter cover 1 axial lateral wall was dextrorotation, the thread rotary orientation that connects on the end cap 17 axial lateral walls was left-handed; When the thread rotary orientation on the igniter cover 1 axial lateral wall when being left-handed, the thread rotary orientation on the connection end cap 17 axial lateral walls is dextrorotation.
Three grades of combustion chambers 20 are positioned at the end of generator, because passage is gas that unique combustion chamber, front the two poles of the earth produces this grade combustion chamber of all will flowing through, all gas all can fully be lowered the temperature.Medicine glass I13, cooling agent 15 and medicine glass II14 are housed in three grades of combustion chambers 20 successively.Cylindrical shell 4 is provided with corresponding to 20 places, three grades of combustion chambers and tops bar 39 for location medicine glass II.Medicine glass I13 bottom is distributed with medicine glass I bottom outlet 36, the side channel 37 at the bottom of the side is processed with and extends to glass.The axial cross section of side channel 37 is shaped as rectangle and/or circular arc.The number of side channel 37 is 3 ~ 6.Medicine glass II14 bottom is provided with the medicine glass II bottom outlet 38 that is connected with exhaust outlet 28.
Be coated with heat insulation layer 26 on the outer wall of three grades of combustion chamber 20 cylinder sections of living in, heat insulation layer 26 is loaded on the draw-in groove 29 of cylindrical shell 4 outer walls, can guarantee that the capsule clothing interface that is connected with generator is not ruined.Heat insulation layer 26 good heat-insulation effect, in the course of work, heat insulation layer 26 temperature outside are lower than 100 ℃, have guaranteed that the capsule clothing is connected reliable connection with generator.
Position near medicine glass I13 end face 30 on secondary combustion chamber 19 and the three grades of combustion chamber 20 junction cylindrical shells is pressed with recess 27.The form of recess 27 can be that the equidistant number that distributes is the interior pits of 3 ~ 8 scopes on the circumference, can be a ring annular groove continuous on the circumference, and the number that can be equidistant distribution one circle on the circumference is the segments in a circular shape groove in 2 ~ 6 scopes.
The barrel of cylindrical shell 4 rear ends is provided with exhaust outlet 28; Exhaust outlet 28 areas are large, and exhaust outlet 28 gross areas are about 2 ~ 3 times of cylindrical shell cross section, can effectively reduce combustion pressure, reduced the requirement of strength of cylindrical shell 4, improved the safety coefficient of generator.Exhaust outlet 28 evenly distributes on the circumferential same horizontal plane of cylindrical shell 4.The number of exhaust outlet 28 is preferentially selected 3 ~ 5 in 2 ~ 6 scopes, optimum is 4.Exhaust outlet 28 be shaped as circle or rectangle or with the rectangle of fillet.If exhaust outlet 28 is square opening, the length of side of square-section rectangle is between 10 ~ 20mm; If exhaust outlet 28 is circular port, the circular section round diameter is between 10 ~ 20mm.Screen pack 16 is equipped with in the cylinder section inboard that cylindrical shell 4 rear ends face exhaust outlet 28, can effectively filter producing gas.The unit weight of screen pack 16 is in 0.5 g/cc ~ 1.5 g/ccs scopes, preferentially selects 0.8 g/cc ~ 1.2 g/ccs, 0.9 g/cc of optimum.Screen pack 16 21 positions by getting out of a predicament or an embarrassing situation in the cylindrical shell.Generator aerogenesis pressure can be by regulating under three grades of combustion chambers 20 and the screen pack 16 common combination effects.Generator aerogenesis temperature is in 50 ℃ ~ 150 ℃ scopes.Cooling agent 15 in three grades of combustion chambers 20 in the generator can cool off the gas that produces in first-stage firing chamber 18 and the secondary combustion chamber 19, and cooling-down effect can be regulated by the explosive payload of cooling agent 15.
Igniter 3 is arranged in front end of the present utility model, and exhaust outlet 28 is arranged in rear end of the present utility model, and the gas of generation flows through and discharges from exhaust outlet through annular waste air duct from front end.Like this, gas can have time enough to go to lower the temperature, and the heat part of gas passes to cylindrical shell, makes cylindrical shell also have good infrared characteristic.Igniter 3 draws by axial force and sends out, and makes the duty of bait bullet more reliable.The capsule clothing is enclosed within on the utility model and connects, and the temperature of junction can not be too high, otherwise the capsule clothing of junction can be scorched.The utility model is provided with thermal insulation layer in the junction, has effectively protected connecting interface.
Claims (10)
1. bait gas generator is characterized in that: cylindrical shell (4) upper end is provided with igniter cover (1), and the lower end is provided with and connects end cap (17); Cylindrical shell (4) inner chamber is divided into three parts, is followed successively by from top to bottom: first-stage firing chamber (18), secondary combustion chamber (19), three grades of combustion chambers (20);
The interior bottom of described cylindrical shell (4) is provided with screen pack (16); The corresponding screen pack of described cylindrical shell (4) barrel (16) locates to be provided with an above exhaust outlet (28); Be provided with medicine glass II(14 in three grades of combustion chambers (20) on described screen pack (16) top); Medicine glass II(14) top is provided with medicine glass I(13); Described medicine glass I(13), be provided with cooling agent (15) medicine glass II(14); Medicine glass II(14) bottom is provided with the medicine glass II bottom outlet (38) that is connected with exhaust outlet (28); Medicine glass I(13) bottom is provided with the medicine glass I bottom outlet (36) that is connected with secondary combustion chamber;
Described medicine glass I(13) top is provided with buffer unit one (12); In the secondary combustion chamber (19) on buffer unit one (12) top gas production charge column (11) is housed; Gas production charge column (11) top is provided with aerogenesis tablet (10);
Be provided with cartridge case (2) in the first-stage firing chamber (18) on described aerogenesis tablet (10) top; Described cartridge case (2) bottom is provided with buffer unit two (9); Buffer unit two (9) tops are provided with dividing plate II(8); Dividing plate II(8) top is provided with the tablet that ignites (6); The centre bore (34) of the described tablet that ignites (6) is in-built a powder grain (7); Tablet (6) top of igniting is provided with dividing plate I(5); Dividing plate I(5) top is provided with igniter (3); Stretch out outside the igniter cover (1) pull pin (33) of igniter (3) upper end;
The barrel of described cartridge case (2) is provided with air discharge duct (31); Described cartridge case (2) bottom is furnished with the hole that is connected with secondary combustion chamber;
Be provided with exhaust passage (25) between described gas production charge column (11) and the secondary combustion chamber's cylinder inboard wall (35).
2. bait gas generator according to claim 1, it is characterized in that: described gas production charge column (11) has tapering, and its tapering is 2 degree ~ 5 degree; Described gas production charge column (11) is fixed in cylindrical shell (4) inwall through large end locating ring (22), small end locating ring (23).
3. bait gas generator according to claim 1 is characterized in that: cylindrical shell (4) circumference between described secondary combustion chamber (19), the three grades of combustion chambers (20) is provided with inwardly recessed recess (27); Described recess (27) is an annular groove or by two segments in a circular shape groove or pits more than three that form with upper groove.
4. bait gas generator according to claim 1 is characterized in that: described cylindrical shell (4) is located to be provided with top bar (39) for location medicine glass II, is used for get out of a predicament or an embarrassing situation (21) of location screen pack (16) corresponding to three grades of combustion chambers (20).
5. bait gas generator according to claim 1 is characterized in that: be coated with heat insulation layer (26) on the outer wall that described cylindrical shell (4) is located corresponding to three grades of combustion chambers (20); Described heat insulation layer (26) is loaded on the draw-in groove (29) of cylindrical shell (4) outer wall.
6. bait gas generator according to claim 1 is characterized in that: described cylindrical shell (4) upper end, lower end are provided with for mounting points firearm cover (1), connect the internal thread of end cap (17); Described upper end internal thread is opposite with the thread rotary orientation of lower end internal thread; Described igniter cover (1), connection end cap (17) are provided with the external screw thread that is connected for the upper screw-internal thread fit of cylindrical shell (4).
7. bait gas generator according to claim 1 is characterized in that: described medicine glass I(13) be provided be used to making the smooth and easy side channel (37) that flows to three grades of combustion chambers (20) of gas.
8. bait gas generator according to claim 1, it is characterized in that: the draw ratio of described cylindrical shell (4) is 5 ~ 10.
9. bait gas generator according to claim 1, it is characterized in that: described exhaust outlet (28) is 2 ~ 6, circumferentially is evenly arranged along cylindrical shell (3).
10. bait gas generator according to claim 1 is characterized in that: described igniter (3) axially draws the mechanical point firearm of sending out for adopting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320263600 CN203249545U (en) | 2013-05-15 | 2013-05-15 | Gas generator for baits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320263600 CN203249545U (en) | 2013-05-15 | 2013-05-15 | Gas generator for baits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203249545U true CN203249545U (en) | 2013-10-23 |
Family
ID=49375978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320263600 Withdrawn - After Issue CN203249545U (en) | 2013-05-15 | 2013-05-15 | Gas generator for baits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203249545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154825A (en) * | 2013-05-15 | 2014-11-19 | 湖北航鹏化学动力科技有限责任公司 | Gas generator for bait |
-
2013
- 2013-05-15 CN CN 201320263600 patent/CN203249545U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154825A (en) * | 2013-05-15 | 2014-11-19 | 湖北航鹏化学动力科技有限责任公司 | Gas generator for bait |
| CN104154825B (en) * | 2013-05-15 | 2015-10-14 | 湖北航鹏化学动力科技有限责任公司 | A kind of bait gas generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131023 Effective date of abandoning: 20151014 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |