CN104154823A - Gas generator - Google Patents
Gas generator Download PDFInfo
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- CN104154823A CN104154823A CN201310178653.4A CN201310178653A CN104154823A CN 104154823 A CN104154823 A CN 104154823A CN 201310178653 A CN201310178653 A CN 201310178653A CN 104154823 A CN104154823 A CN 104154823A
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- gas
- gas generator
- cylindrical shell
- cooler
- filter
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention discloses a gas generator. The two ends of a barrel body are provided with a front end cover and a rear end cover. An igniter, a filter or cooler and a gas generation reagent are arranged in the barrel body, wherein the gas generation reagent is installed between the igniter and the filter or cooler and used for generating combustion gas. The outer cylindrical surface of the filter or cooler is attached to the inner wall face of the barrel body. The position, corresponding to the filter or cooler, of the barrel wall of the barrel body is provided with one or more gas vents. According to the gas generator, a cylindrical grain formed in a pressing mode and an annular tablet are combined to be freely loaded into a combustion chamber or directly loaded in a shell in a casting mode, and charging of the small-diameter generator is achieved. Rapid gas venting is achieved through an annular gap venting channel. Due to the design of the barrel-shaped generator, the flow paths of gas flow in the generator are increased, gas can achieve sufficient heat transfer with the grain and the shell, and the outlet temperature of the generator is reduced to be appropriate.
Description
Technical field
The present invention relates to a kind of capsule clothing to infrared flare provides the gas generator of the high-altitude inflation with rocket or shell transmitting 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 flame ejection, if directly capsule is inflated with high-temperature fuel gas, under the restriction of capsule material intensity, may bear hardly so high medium temperature.Take tubular air-cushion inflator as example, and 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 object of the invention is to overcome the above-mentioned deficiency of prior art and a kind of longevity of service, 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.
Technical scheme of the present invention is: cylindrical shell two ends are provided with drive end bearing bracket, rear end cap; In cylindrical shell, there are igniter, filter or cooler, are loaded between igniter and filter or cooler the gas producing medicinal for generation of burning gases; The outer cylinder surface of described filter or cooler and the laminating of the internal face of cylindrical shell; Described cylindrical shell is provided with one with upper air-vent corresponding to the barrel at filter or cooler place.
Between described gas producing medicinal and cylinder inboard wall, there is the annulus of passing through for burning gases.
The draw ratio of described cylindrical shell is 5 ~ 10.
Described steam vent is 3 ~ 6, along cylindrical shell, is circumferentially evenly arranged; 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 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 radially rising and falling.
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 present invention is mainly by adopting compressing column type powder column and ring-type tablet to combine, and is freely seated in combustion chamber or adopts the design form of directly casting and loading in housing, has realized the powder charge of minor diameter generator.By 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, and first igniter lights the end face that approaches one section of medicament with igniter after being drawn and sent out by axial force.Adopt axial force to draw the mode of sending out, make generator architecture simple, igniting is reliable.
The rational layout of the present invention, compact conformation, guarantees that medicament is squeezed not bad under high overload, keeps smooth combustion state.
Feature of the present invention is:
(1) generator involved in the present invention can be used for high-altitude inflation.
(2) 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) generator draw ratio is high, is totally long tubular.
(4) generator powder column can pre-molding be plurality of specifications, and 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 to the adjusting of temperature.Filter/cooler outer surface covers steam vent completely, has guaranteed that all gas all can effectively be lowered the temperature, and has obtained clean gas.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of gas producing medicinal embodiment mono-.
Fig. 3 is the structural representation of gas producing medicinal embodiment bis-.
Fig. 4 is the structural representation of gas producing medicinal embodiment tri-.
Fig. 5 is the structural representation of gas producing medicinal embodiment tetra-.
Fig. 6 is the structural representation of gas producing medicinal embodiment five.
Fig. 7 is the structural representation of locating ring embodiment mono-.
Fig. 8 is the top view of Fig. 7.
Fig. 9 is the structural representation of locating ring embodiment bis-.
Figure 10 is the structural representation of locating ring embodiment tri-.
Figure 11 is the structural representation of locating ring embodiment tetra-.
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, 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, ring-type tablet, 14, column type powder column.
The specific embodiment
In Fig. 1, the present invention is used for making capsule clothing expand to launch, and it comprises: any one cylindrical shell of making 3 and be fixed on drive end bearing bracket 1 and the rear end cap 6 at described cylindrical shell two ends in the metals such as steel alloy, stainless steel, mild steel.The in-built gas producing medicinal 4 that has mechanical type igniter 2, filter/cooler 5 and produce burning gases of cylindrical shell.Cylindrical shell 3 has the advantages that the scope of draw ratio L/D is 5 ~ 10, is provided with a series of steam vents 7 on its exhaust end side wall surface.Filter/cooler 5 is placed in 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.
Between gas producing medicinal outer surface 4-1 and cylinder inner surface 3-1, form annulus 8.The width range of annulus 8 is between 0.5 ~ 10mm.The area of section of annulus 8 is at 100mm
2~ 250mm
2in scope.Annulus 8 has formed exhaust passage of the present invention.On axial direction of the present invention, 8 one end, annulus are connecting combustion front, and the other end is connecting steam vent 7.Near gas temperature steam vent 7 is within the scope of 50 ℃ ~ 150 ℃.Adopt the mode of circumferential weld exhaust, on the one hand due to the initial combustion face of burning and venthole distance, all gas powder column outer wall of all flowing through, can be by the cooling-down effect good to γ-ray emission of heat conduction fully.Gas producing medicinal is played the effect of preheating simultaneously, increased the reliability of low-temperature ignition; On the other hand, the passage of gas runs through whole generator, and high-temperature gas can heat uniformly to cylindrical shell, makes generator have good infrared signature signal.
Gas producing medicinal 4 is seated in cylindrical shell 3 by having after the device of radial location is fixed, and light after exciting by mechanical point firearm 2, from the gas producing medicinal front end face 4-2 near mechanical point firearm 2 one end, take fire, burning gases flow to steam vent 7 by the annulus 8 forming between gas producing medicinal outer surface 4-1 and cylinder inner surface 3-1 through after filter/cooler 5, all gas flows out by steam vent 7, and inflates to the air bag not indicating in the drawings.
The generator relating in the present invention can continue to produce thermal current, meets the instructions for use of longevity of service.
In gas producing medicinal 4, be added with cooling agent composition, can effectively control the temperature of gas, improve the reliability of medicament sustained combustion simultaneously.Filter/cooler 5 can further reduce gas temperature, has guaranteed that gas generator pours euthermic clean gas in air bag.
The present invention, its draw ratio, between 5 ~ 10, can guarantee minimizing of the folding rear whole bait volume of capsule clothing like this.Because the diameter of female bullet is determined, guarantee that bait can pack into wherein smoothly, must strictly control its radial dimension, less volume is convenient to shoot on the one hand, can avoid on the other hand capsule clothing to cause damage under very large extruding force.
Cylindrical shell 3 two ends have end cap to connect, and connected mode can be any one in connections that be threaded, weld, press, interference fit connection, can bear larger internal pressure.
Mechanical point firearm 2 is arranged in front end of the present invention, and steam vent 7 is arranged in rear end of the present invention, and the gas of generation flows through and discharges from steam vent 7 through annular waste air duct from front end.Like this, gas can have time enough to go to lower the temperature, and a heat part for gas passes to cylindrical shell 3, makes cylindrical shell 3 also have good infrared characteristic.Mechanical point firearm 2 is drawn and is sent out by axial force, makes the duty of bait bullet more reliable.Steam vent 7 areas that are positioned at end are 2 ~ 3 times of cylindrical shell area of section, and exhaust is smooth and easy, can effectively reduce combustion pressure, has reduced the requirement of strength of cylindrical shell 3, has improved safety coefficient of the present invention.Steam vent 7 can be designed to square opening, circular hole, and circumferentially arranges uniformly, and number is conventionally within the scope of 3 ~ 6.If be designed to square opening, the length of side of square-section rectangle is between 10 ~ 20mm.If be designed to circular port, circular section round diameter is between 10 ~ 20mm.
In 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 Fig. 3,4 represents that one section of powder column the inside comprises the mode of the fast medicament of different combustions by layering mold pressing or layering casting and is shaped, and the number of plies is within the scope of 1 ~ 10 layer.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 powder column can be blended in uniformly in whole section of powder column and suppresses or cast, and also can on powder column is axial, carry out layering compacting or casting, and the number of plies of cooling medicament 12 is in 1 ~ 3 scope.
In 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 within the scope of 0.5mm ~ 2mm.The number range of the clamping position pawl of locating ring 9 is 3 ~ 6.First locating ring 9 is to stamp out blank with metallic plate, an annulus in the middle of being shaped as of blank, and annulus surrounding is distributed with 3 ~ 6 clamping position pawls.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 center, prevent that powder column is eccentric, side burning string fire; 3) guarantee that hot gas is evenly from barrel and powder column intermediate flow mistake, housing surrounding homogeneous heating.
In Fig. 9, the clamping position pawl end 90-degree bent of locating ring 9.
In Figure 10, the clamping position pawl of locating ring 9 is processed into waveform.
In Figure 11, the concavity that the clamping position pawl of locating ring 9 swells in having radially.
In 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.
In Figure 13, the general paired use of locating ring 9, is enclosed within respectively the two ends of powder column, and the inner side of locating ring claw contacts with powder column outer surface, and the outside of locating ring claw contacts with cylinder inboard wall, thereby has limited powder column displacement radially, has played the effect of location.
Claims (10)
1. a gas generator, is characterized in that: cylindrical shell (3) two ends are provided with drive end bearing bracket (1), rear end cap (6); In cylindrical shell (3), there are igniter (2), filter or cooler (5), are loaded between igniter (2) and filter or cooler (5) gas producing medicinal (4) for generation of burning gases; The internal face laminating of the outer cylinder surface of described filter or cooler (5) and cylindrical shell (3); 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: between described gas producing medicinal (4) and cylindrical shell (3) inwall, have the annulus (8) of passing through for burning gases.
3. gas generator according to claim 1, is characterized in that: the draw ratio of described cylindrical shell (3) is 5 ~ 10.
4. gas generator according to claim 1, is characterized in that: described steam vent (7) is 3 ~ 6, along cylindrical shell (3), is circumferentially evenly arranged; The gross area of steam vent (7) is 2 ~ 3 times of cylindrical shell (3) radial section area.
5. according to the gas generator described in claim 1 or 4, it is characterized in that: described steam vent is polygon, the polygon with fillet, circle or oval.
6. gas generator according to claim 1, is characterized in that: described gas producing medicinal (4) is provided with locating ring (9) outside 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, 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 radially rising and falling.
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: the combination of the combination that described gas producing medicinal (4) is column type powder column or a plurality of ring-type tablets or column type powder column and an above ring-type tablet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310178653.4A CN104154823A (en) | 2013-05-15 | 2013-05-15 | Gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310178653.4A CN104154823A (en) | 2013-05-15 | 2013-05-15 | Gas generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104154823A true CN104154823A (en) | 2014-11-19 |
Family
ID=51880390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310178653.4A Pending CN104154823A (en) | 2013-05-15 | 2013-05-15 | Gas generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104154823A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070587A (en) * | 2015-08-07 | 2015-11-18 | 贺佳国 | Micro gas generator and micro gas thruster |
| 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 |
| CN114440720A (en) * | 2022-03-08 | 2022-05-06 | 湖南神斧集团向红机械化工有限责任公司 | Separation device for variable-speed bidirectional balanced separation and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2234382Y (en) * | 1994-03-14 | 1996-09-04 | 莫顿国际股份有限公司 | Inflator assembly for air bag assembly of vehicle |
| WO2001072560A1 (en) * | 2000-03-28 | 2001-10-04 | Nippon Kayaku Kabushiki-Kaisha | Gas generator |
| CN102271973A (en) * | 2009-01-06 | 2011-12-07 | 日本化药株式会社 | Gas generator |
| CN102421642A (en) * | 2009-05-12 | 2012-04-18 | 株式会社大赛璐 | Gas generator |
| CN203249544U (en) * | 2013-05-15 | 2013-10-23 | 湖北航鹏化学动力科技有限责任公司 | Gas generator |
-
2013
- 2013-05-15 CN CN201310178653.4A patent/CN104154823A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2234382Y (en) * | 1994-03-14 | 1996-09-04 | 莫顿国际股份有限公司 | Inflator assembly for air bag assembly of vehicle |
| WO2001072560A1 (en) * | 2000-03-28 | 2001-10-04 | Nippon Kayaku Kabushiki-Kaisha | Gas generator |
| CN102271973A (en) * | 2009-01-06 | 2011-12-07 | 日本化药株式会社 | Gas generator |
| CN102421642A (en) * | 2009-05-12 | 2012-04-18 | 株式会社大赛璐 | Gas generator |
| CN203249544U (en) * | 2013-05-15 | 2013-10-23 | 湖北航鹏化学动力科技有限责任公司 | Gas generator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070587A (en) * | 2015-08-07 | 2015-11-18 | 贺佳国 | Micro gas generator and micro gas thruster |
| 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 |
| CN114440720A (en) * | 2022-03-08 | 2022-05-06 | 湖南神斧集团向红机械化工有限责任公司 | Separation device for variable-speed bidirectional balanced separation and use method thereof |
| CN114440720B (en) * | 2022-03-08 | 2024-05-03 | 湖南神斧集团向红机械化工有限责任公司 | Separating device for variable-speed bidirectional balance separation and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141119 |