CN203249544U - Gas generator - Google Patents
Gas generator Download PDFInfo
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- CN203249544U CN203249544U CN 201320263598 CN201320263598U CN203249544U CN 203249544 U CN203249544 U CN 203249544U CN 201320263598 CN201320263598 CN 201320263598 CN 201320263598 U CN201320263598 U CN 201320263598U CN 203249544 U CN203249544 U CN 203249544U
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- gas
- cylindrical shell
- cooler
- filter
- gas generator
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Abstract
The utility model discloses a gas generator. A front end cover and a rear end cover are arranged at the two ends of a barrel. An igniter, a filter or a cooler and gas generating drugs are arranged inside the barrel, wherein the gas generating drugs are arranged between the igniter and the filter or the cooler and used for generating combustion gas. The surface of the outer cylinder of the filter or the cooler is attached to the inner wall face of the barrel. More than one air hole is formed in the position, corresponding to the position of the filter or the cooler, of the barrel wall of the barrel. According to the gas generator, the design mode that cylindrical drug pillars formed in a pressed mode and annular tablets formed in a pressed mode are combined to be freely filled into a combustion chamber or direct casting and filling are carried out on the interior of a shell is adopted, and drug filling of the small-diameter generator is achieved. The rapid exhausting aim is achieved through an annular gap exhausting channel. Due to the design of the cylindrical generator, the flow path of gas flow inside the generator is increased, enough time is provided for heat transmission among the gas, the drug pillars and the shell, and therefore the temperature of an outlet of the generator is reduced to the proper temperature.
Description
Technical field
The utility model relates to a kind of capsule clothing to infrared flare provides the gas generator with the high-altitude inflation of rocket or shell emission with uniform temperature air-flow.
Background technology
At present, the gas temperature that common gas generator produces is all very high, and exhaust outlet has the flame ejection, if directly with high-temperature fuel gas capsule is inflated, under the restriction of capsule material intensity, may bear hardly so high medium temperature.Take the tubular air-cushion inflator as example, the high-temperature gas of its generation is mainly lowered the temperature and flame arrest by screen pack, and nonetheless, its outlet temperature has also reached 300 ℃ ~ 400 ℃.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and a kind of longevity of service, and chamber pressure is low, and outlet pressure is stable, outlet temperature is greater than 85 ℃ and can not scald air bag, gas generator that residue is few.
The technical solution of the utility model is: the cylindrical shell two ends are provided with drive end bearing bracket, rear end cap; Igniter, filter or cooler are arranged in the cylindrical shell, be loaded between igniter and filter or the cooler gas producing medicinal for generation of burning gases; The outer cylinder surface of described filter or cooler and the internal face of cylindrical shell are fitted; Described cylindrical shell is provided with one with upper air-vent corresponding to the barrel at filter or cooler place.
The annulus of passing through for burning gases is arranged between described gas producing medicinal and cylinder inboard wall.
The draw ratio of described cylindrical shell is 5 ~ 10.
Described steam vent is 3 ~ 6, circumferentially is evenly arranged along cylindrical shell; The gross area of steam vent is 2 ~ 3 times of cylindrical shell radial section area.
Described steam vent is polygon, the polygon with fillet, circle or oval.
Described gas producing medicinal is provided with locating ring outside the two ends; Described locating ring comprises an annulus, and described annulus excircle is provided with two above clamping position pawls.
Described clamping position pawl end bends laterally.
Described clamping position pawl has the wave-like that radially rises and falls.
Described clamping position pawl has the radially convex-concave shape of protuberance.
Described gas producing medicinal is the combination of column type powder column or a plurality of ring-type tablets or the combination of column type powder column and an above ring-type tablet.
The utility model mainly is by adopting compressing column type powder column and ring-type tablet to combine, freely be seated in the combustion chamber or the direct design form of casting in housing and loading of employing, having realized the powder charge of minor diameter generator.By the exhaust passage, annulus, solved the problem of Quick air-discharge.Cylinder type inflator design increases air-flow at the flow path of generator inside, the fully free and powder column of gas and housing is conducted heat, thereby make the outlet temperature of generator be reduced to suitable temperature.
Sparking mode is sent out igniting for axially drawing, igniter by axial force draw send out after, at first light and the end face of igniter near one section medicament.Adopt axial force to draw the mode of sending out, so that generator architecture is simple, igniting is reliable.
The rational layout of the utility model, compact conformation guarantees that medicament is squeezed not bad under high overload, keeps the smooth combustion state.
Characteristics of the present utility model are:
(1) the related generator of the utility model can be used for the high-altitude inflation.
(2) the initial combustion end face is away from exhaust outlet, and air flow path is long, can effectively reduce the temperature of exhaust ports air-flow.
(3) the generator draw ratio is high, totally is long tubular.
(4) the generator powder column can pre-molding be plurality of specifications, and the performance adjustment is flexible.
(5) generator uses radial positioning device, adopts the working method of side exhaust.
(6) adopt filter/cooler gas to be carried out the adjusting of temperature.Filter/cooler outer surface covers steam vent fully, has guaranteed that all gas all can effectively be lowered the temperature, and obtains clean gas.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of gas producing medicinal embodiment one.
Fig. 3 is the structural representation of gas producing medicinal embodiment two.
Fig. 4 is the structural representation of gas producing medicinal embodiment three.
Fig. 5 is the structural representation of gas producing medicinal embodiment four.
Fig. 6 is the structural representation of gas producing medicinal embodiment five.
Fig. 7 is the structural representation of locating ring embodiment one.
Fig. 8 is the top view of Fig. 7.
Fig. 9 is the structural representation of locating ring embodiment two.
Figure 10 is the structural representation of locating ring embodiment three.
Figure 11 is the structural representation of locating ring embodiment four.
Figure 12 is the structural representation of locating ring embodiment five.
Figure 13 is the use view of locating ring.
Wherein, 1, drive end bearing bracket, 2, mechanical point firearm, 3, cylindrical shell, 4, gas producing medicinal, 5, filter or cooler, 6, rear end cap, 7, steam vent, 8, the annulus, 4-1, gas producing medicinal outer surface, 3-1, cylinder inner surface, 4-2, gas producing medicinal front end face, 9, locating ring, 10, gas producing medicinal A, 11, gas producing medicinal B, 12, cooling medicament, 13, the ring-type tablet, 14, the column type powder column.
The specific embodiment
Among Fig. 1, the utility model is used for making the capsule clothing to expand launching, and it comprises: by any one cylindrical shell of making 3 in the metals such as steel alloy, stainless steel, mild steel be fixed on drive end bearing bracket 1 and the rear end cap 6 at described cylindrical shell two ends.The in-built gas producing medicinal 4 that mechanical type igniter 2, filter/cooler 5 is arranged and produce burning gases of cylindrical shell.The scope that cylindrical shell 3 has a draw ratio L/D is 5 ~ 10 characteristics, is provided with a series of steam vents 7 on its exhaust end side wall surface.Filter/cooler 5 places the generator exhaust end, and the outside wall surface of filter/cooler 5 all covers all steam vents 7.The area of the cylinder outer side surface of filter/cooler 5 is greater than the gross area of steam vent 7.
Be seated in the cylindrical shell 3 after gas producing medicinal 4 is fixing by the device with radial location, and light after exciting by mechanical point firearm 2, take fire from the gas producing medicinal front end face 4-2 near mechanical point firearm 2 one ends, burning gases flow to steam vent 7 after passing filter/cooler 5 by the annulus 8 that forms between gas producing medicinal outer surface 4-1 and the cylinder inner surface 3-1, all gas flows out by steam vent 7, and inflates to the air bag that does not indicate in the drawings.
The generator that relates in the utility model can continue to produce thermal current, satisfies the instructions for use of longevity of service.
Be added with the cooling agent composition in the gas producing medicinal 4, can effectively control the temperature of gas, improve simultaneously the reliability of medicament sustained combustion.Filter/cooler 5 can further reduce gas temperature, has guaranteed that gas generator pours euthermic clean gas in air bag.
The utility model, its draw ratio 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.
Among Fig. 2,3,4,5,6, gas producing medicinal 4 can be compression molding a monoblock powder column (as shown in Figure 2), can be ring-type tablet 13 and column type powder column 14 combination (as shown in Figure 5), can be ring-type tablet 13 stack (as shown in Figure 6), can be the powder column that forms of mode by casting.Fig. 2 represents the powder column of mold pressing or casting, and the medicaments that Fig. 3, one section powder column of 4 expressions the inside comprise different combustion speed are shaped by the mode of layering mold pressing or layering casting, and the number of plies is in 1 ~ 10 layer of scope.10 is gas producing medicinal A, and 11 for being gas producing medicinal B.Powder column can have the effect of aerogenesis, cooling.Cooling medicament 12 in the powder column can be blended in uniformly to be suppressed in the whole section powder column or casts, and also can axially carry out layering compacting or casting at powder column, and the number of plies of cooling medicament 12 is in 1 ~ 3 scope.
Among Fig. 7,8, gas producing medicinal is fixed by locating ring 9, limits its displacement radially, guarantees that gas producing medicinal and cylindrical shell are coaxial.The material of locating ring can be the metal foils such as carbon steel or spring steel, and steel plate thickness is in 0.5mm ~ 2mm scope.The number range of the clamping position pawl of locating ring 9 is 3 ~ 6.Locating ring 9 at first is to stamp out blank with metallic plate, is distributed with 3 ~ 6 clamping position pawls around annulus in the middle of being shaped as of blank, annulus.Then blank is folded into certain shape, clamping position pawl end can doubling 180 °.The effect of clamping position pawl: 1) fix and protect powder column, antivibration and anti-drop; 2) be positioned at the center, prevent that powder column is eccentric, side burning string fire; 3) guarantee hot gas evenly from barrel and powder column intermediate flow mistake, homogeneous heating around the housing.
Among Fig. 9, the terminal 90-degree bent of the clamping position pawl of locating ring 9.
Among Figure 10, the clamping position pawl of locating ring 9 is processed into waveform.
Among Figure 11, the concavity of protuberance in the clamping position pawl of locating ring 9 has radially.
Among Figure 12, the clamping position pawl of locating ring 9 has the radially convex of outer protuberance.
The clamping position pawl of waveform and convex concave has elasticity, can also radially cushion powder column, plays the effect of protection powder column.
Among Figure 13, locating ring 9 general paired uses are enclosed within respectively the two ends of powder column, and the inboard of locating ring claw contacts with the powder column outer surface, and the outside of locating ring claw contacts with cylinder inboard wall, thereby has limited powder column displacement radially, have played the effect of location.
Claims (10)
1. gas generator, it is characterized in that: cylindrical shell (3) two ends are provided with drive end bearing bracket (1), rear end cap (6); Igniter (2), filter or cooler (5) are arranged in the cylindrical shell (3), be loaded between igniter (2) and filter or the cooler (5) gas producing medicinal (4) for generation of burning gases; The internal face of the outer cylinder surface of described filter or cooler (5) and cylindrical shell (3) is fitted; The barrel that described cylindrical shell (3) is located corresponding to filter or cooler (5) is provided with one with upper air-vent (7).
2. gas generator according to claim 1 is characterized in that: the annulus (8) of passing through for burning gases is arranged between described gas producing medicinal (4) and cylindrical shell (3) inwall.
3. gas generator according to claim 1, it is characterized in that: the draw ratio of described cylindrical shell (3) is 5 ~ 10.
4. gas generator according to claim 1, it is characterized in that: described steam vent (7) is 3 ~ 6, circumferentially is evenly arranged along cylindrical shell (3); The gross area of steam vent (7) is 2 ~ 3 times of cylindrical shell (3) radial section area.
5. according to claim 1 or 4 described gas generators, it is characterized in that: described steam vent is polygon, the polygon with fillet, circle or oval.
6. gas generator according to claim 1, it is characterized in that: described gas producing medicinal (4) is provided with locating ring (9) outside the two ends; Described locating ring (9) comprises an annulus, and described annulus excircle is provided with two above clamping position pawls.
7. gas generator according to claim 6, it is characterized in that: described clamping position pawl end bends laterally.
8. gas generator according to claim 6 is characterized in that: described clamping position pawl has the wave-like that radially rises and falls.
9. gas generator according to claim 6 is characterized in that: described clamping position pawl has the radially convex-concave shape of protuberance.
10. gas generator according to claim 1 is characterized in that: described gas producing medicinal (4) is column type powder column or the combination of a plurality of ring-type tablets or the combination of column type powder column and an above ring-type tablet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320263598 CN203249544U (en) | 2013-05-15 | 2013-05-15 | Gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320263598 CN203249544U (en) | 2013-05-15 | 2013-05-15 | Gas generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203249544U true CN203249544U (en) | 2013-10-23 |
Family
ID=49375977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320263598 Expired - Lifetime CN203249544U (en) | 2013-05-15 | 2013-05-15 | Gas generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203249544U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154823A (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 |
| 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 |
| CN111238311A (en) * | 2020-03-25 | 2020-06-05 | 河南羽流智能科技有限公司 | Solid gas generating device for infrared bait |
-
2013
- 2013-05-15 CN CN 201320263598 patent/CN203249544U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154823A (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 |
| 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 |
| CN111238311A (en) * | 2020-03-25 | 2020-06-05 | 河南羽流智能科技有限公司 | Solid gas generating device for infrared bait |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131023 |