CN203249543U - Gas generator for shells - Google Patents
Gas generator for shells Download PDFInfo
- Publication number
- CN203249543U CN203249543U CN 201320263193 CN201320263193U CN203249543U CN 203249543 U CN203249543 U CN 203249543U CN 201320263193 CN201320263193 CN 201320263193 CN 201320263193 U CN201320263193 U CN 201320263193U CN 203249543 U CN203249543 U CN 203249543U
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- CN
- China
- Prior art keywords
- igniter
- cylindrical shell
- gas generator
- cooler
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model relates to a gas generator for shells. A front end cover and a rear end cover are arranged at the two ends of a barrel body; an igniter, a filter or a cooler and gas generating agents are arranged in the barrel body, wherein the gas generating agents are filled between the igniter and the filter or between the igniter and the cooler and used for generating burning gases; the igniter comprises an igniter body and an igniter pull pin, wherein the igniter body is arranged in the barrel body, and the igniter pull pin penetrates out of the front end cover; the outer cylindrical surface of the filter or the cooler is attached to the inner wall of the barrel body; more than one exhaust hole is formed in the barrel wall, corresponding to the filter or the cooler, of the barrel body; the axis of the igniter and the axis of the barrel body coincide or are parallel with each other; the igniter pull pin is located on the axis of the igniter. The gas generator for shells avoids the problems that other ignition methods are low in reliability and complex in design. Due to the fact that the axial pull-launching method is adopted for the gas generator, when the gas generator is launched through pulling, the flying posture of the gas generator can be kept.
Description
Technical field
The utility model relates to a kind of gas generator, and specifically a kind of the employing axially drawn the bullet gas generator of sending out igniter.After rocket projectile, shell and MISSILE LAUNCHING, the infrared thermal source of this physical efficiency, and hot gas is provided.
Background technology
At present, known sparking mode has electric ignition, fuse cord, primacord, side direction to draw an igniting etc.Electric ignition need to be equipped power supply at body; Primacord and fuse cord are difficult to guarantee the igniting reliability under the path of complexity; Side direction draws an igniter can affect the skyborne flight attitude of body, reduces reliability.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and provides a kind of being equipped with axially to draw the bullet gas generator of sending out igniter.
Solution of the present utility model: 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; Described igniter comprises that the igniter main body that places in the cylindrical shell, the igniter that passes outside the drive end bearing bracket draw pin; The outer cylinder surface of described filter or cooler and the inwall 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 axis of described igniter and the dead in line of cylindrical shell or parallel; Described igniter draws pin to be positioned on the axis of igniter.
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, along the cylindrical shell circumferential directions.
Described steam vent is square or circular.
The igniter outward appearance of internal equipment is column, and the pin that draws of igniter also is column, the dead in line of drawing pin and igniter body.When Generator Design, the axis of igniter and the axis of generator body are arranged in parallel, igniter draws that to send out power needed just parallel with the generator axis direction like this.
The draw ratio of cylindrical shell is 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 other assembly injury under very large extruding force.
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 utility model is oval column, adopts axially to draw and sends out igniter, by axially drawing a late ignition mode generator is lighted a fire.Its axis or coincidence parallel with generator axis during assembling.Draw pin axis and the igniter of igniter overlap, and draw on the pin and active force when reaching certain value in case there is the masterpiece that is parallel to the gas generator axis direction to be used in igniter, just can light a fire to gas generator.The utility model adopts the originating party formula of axially drawing, and drawing the flight attitude that can keep gas generator when sending out, has avoided the low reliability of other sparking mode effect and the complexity of design.
Characteristics of the present utility model are:
(1) sends out igniter by adopting axially to draw, effectively improved the reliability of gas generator work.
(2) generator draws when sending out, because the axially parallel that draws have an effect direction and generator of igniter can make the gas generator attitude keep good, without overthrow accident.
(3) adopt axial force to draw the mechanical point firearm of sending out, igniting is reliable, and can take the Dark Ignition technology that the working time of generator is controlled accurately.
(4) compact conformation is reasonable.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is partial enlarged drawing of the present utility model.
Fig. 3 is the A-A cutaway view of Fig. 1.
Fig. 4 is that the pressure after the utility model is lighted a fire in the 30L closed container repeats curve map (+23 ℃).
Wherein, 1, drive end bearing bracket, 2, mechanical point firearm, 2-1, draw pin, 2-2, igniter main body, the axis of 2-3, igniter, 3, cylindrical shell, 3-1, cylinder inner surface, 4, gas producing medicinal, 4-1, gas producing medicinal outer surface, 4-2, gas producing medicinal front end face, 5, filter/cooler, 6, rear end cap, 7, steam vent, 8, the annulus, 9, the axis of cylindrical shell.
The specific embodiment
Among Fig. 1, Fig. 2, gas generator is the equipment that the capsule clothing expand to be launched, by consisting of with lower member: 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 or 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.The outside wall surface of filter/cooler 5 all covers all steam vents 7.Igniter 2 comprises that the igniter main body 2-2 that places in the cylindrical shell 3, the igniter that passes outside the drive end bearing bracket 1 draw pin 2-1; Be seated in the cylindrical shell after described gas producing medicinal 4 is fixing by the device with radial location, and light after exciting by igniter 2, take fire from the gas producing medicinal front end face 4-2 near igniter 2, burning gases flow to steam vent 7 by the annulus 8 that forms between gas producing medicinal outer surface 4-1 and the cylindrical shell 3 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 utility model draws by axial tension and sends out, and the axis 2-3 of igniter and the axis of cylindrical shell 9 overlap.
Igniter is arranged in the front end of generator, and steam vent is arranged in the rear end of generator, and the gas of generation flows through and discharges from steam vent 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 draws by axial force and sends out, and makes the duty of bait bullet more reliable.The steam vent area that is positioned at the generator exhaust end is 2 ~ 3 times of cylindrical shell area of section, and exhaust is smooth and easy, has reduced combustion pressure.Steam vent can be designed to square opening, circular hole, and arranges uniformly that circumferentially number is usually in 3 ~ 6 scopes.If be designed to square opening, the length of side of square-section rectangle is between 10 ~ 20mm.If be designed to circular port, the circular section round diameter is between 10 ~ 20mm.
Igniter draws when sending out, and need to have along the pulling force component F of projection on axis 9 directions of igniter axis 2-3 or cylindrical shell.Igniter 2 is drawing when sending out, and required direction of pull is preferably parallel with the axis 2-3 of igniter.Draw the direction of a required pulling force of igniter and the axis 9 of igniter axis 2-3 or cylindrical shell to form angle theta, the span of θ comprises 0 degree and 89 degree in 0 ~ 89 degree.
Among Fig. 3,8 is the annulus.
Fig. 4 is that the pressure after the utility model is lighted a fire in the 30L closed container repeats curve map (+23 ℃).
Claims (5)
1. bullet 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; Described igniter (2) comprises that the igniter main body (2-2) that places in the cylindrical shell (3), the igniter that passes outside the drive end bearing bracket (1) draw pin (2-1); The inwall 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); The axis of described igniter (2-3) overlaps with the axis (9) of cylindrical shell (3) or is parallel; Described igniter draws pin to be positioned on the axis (2-3) of igniter.
2. bullet 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. bullet gas generator according to claim 1, it is characterized in that: the draw ratio of described cylindrical shell (3) is 5 ~ 10.
4. bullet gas generator according to claim 1, it is characterized in that: described steam vent (7) is 3 ~ 6, along cylindrical shell (3) circumferential directions.
5. according to claim 1 or 4 described bullet gas generators, it is characterized in that: described steam vent is square or circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320263193 CN203249543U (en) | 2013-05-15 | 2013-05-15 | Gas generator for shells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320263193 CN203249543U (en) | 2013-05-15 | 2013-05-15 | Gas generator for shells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203249543U true CN203249543U (en) | 2013-10-23 |
Family
ID=49375976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320263193 Withdrawn - After Issue CN203249543U (en) | 2013-05-15 | 2013-05-15 | Gas generator for shells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203249543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154824A (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 shells |
-
2013
- 2013-05-15 CN CN 201320263193 patent/CN203249543U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154824A (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 shells |
| CN104154824B (en) * | 2013-05-15 | 2018-03-13 | 湖北航鹏化学动力科技有限责任公司 | A kind of bullet 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: 20180313 |
|
| AV01 | Patent right actively abandoned |