JPS61266384A - Gas generator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a gas generator.

[Conventional technology]

A gas generator for buoyancy generating equipment that increases the buoyancy of a bag by inflating it underwater and bringing a submerged object to the surface of the water.Inflating a bag attached to a car in the event of a collision increases the buoyancy of the body. Gas generators for shock absorption equipment that reduce the impact on the bag use a method in which the high-temperature gas generated by burning gunpowder is passed through a coolant to reduce its temperature, for reasons of bag strength and safety. For example, the second
As shown in the longitudinal sectional view of the figure, gunpowder 02 is placed at the right end of container 01, and coolant 03 is placed in front of it. Filter 04゜Gas outlet 0
5 are arranged in sequence.

Here, 06 indicates the generated gas and 07 indicates the bag. However, in such a structure, if a large amount of gas 06t is required, a large amount of coolant 03 is required, so the gas generator is The disadvantage is that it becomes large.

[Problem that the invention seeks to solve]

The present invention was proposed in view of these circumstances, and
To provide a gas generator that requires a small amount of gas coolant even when a large amount of gas is required, and can therefore be made smaller and lighter.

[Means for solving problems]

To this end, the present invention provides an external cylindrical container equipped with an ignition device and a check valve for gas discharge, an internal cylindrical container installed within the external cylindrical container with a space in between, and an internal cylindrical container inside the internal cylindrical container. an M gas chamber which is partitioned off by a partition wall and is filled with liquefied gas and has a check valve communicating with the space; The present invention is characterized by comprising a gunpowder gas generation chamber which contains, in order, gunpowder, an ignition charge interlocked with the ignition device, a coolant, and a filter, and has a reverse valve communicating with the space.

[Effect]

With the above configuration, even when large amounts of gas are required,
Only a small amount of gas refrigerant is required.

Therefore, it is possible to obtain a gas generator that can be made smaller and lighter.

〔Example〕

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view thereof.

In the above figure, the same symbols as in Fig. 2 indicate the same members as in the same figure, and l is cylindrical and has an ignition device 1 & at one end.
An external cylindrical container provided with a gas discharge reverse valve lb1 &: at the center of the upper end.

Reference numeral 8 denotes an internal cylindrical container which is cylindrical and installed coaxially inside the external cylindrical container 1 with a space 9 in between. Liquefied gas 1o is placed in the left section #8d, which has a check valve 8c at the left end, and gunpowder 02. Ignition powder 11. A coolant 03 degree filter 04 is arranged respectively.

Note that here, solidified CCcht can also be used instead of the liquefied gas 1o.

In such a device, first, when the ignition device 1a ignites the ignition powder 11 and burns the gunpowder 02, the gunpowder 02
generates high-temperature gas, which is cooled by coolant 03 and passed through filter 04. The gas passes through the check valve 8clr and exits into the space 9 as a somewhat cooled gas 12.

At that time, when the gunpowder 02 burns and its temperature rises, the liquefied gas 10 in the adjacent right side section 8b vaporizes and generates gas, absorbs heat, becomes a sufficiently cooled gas 13, and reverses the It exits to the space 9 via the upper valve 8a.

Then, the gas 12 is mixed with the gas 13 in the space 9, and after the temperature drops to a predetermined temperature, it is supplied as the gas 06 to the bag 07 through the gas discharge reverse valve 1b'.
According to such a device, the following effects can be achieved.

(1) Since the compartment filled with liquefied gas is adjacent to the compartment filled with gunpowder, when the gunpowder burns, the heat can be used to vaporize the liquefied gas and generate gas.

(2) The low temperature gas generated by vaporizing the liquefied gas is mixed with the gas generated by the combustion of gunpowder in the space inside the external cylindrical container, so the gas generated by the combustion of the gunpowder is mixed with the gas generated by the combustion of the gunpowder. The amount of refrigerant used to cool the container can be kept to a minimum, thus making it possible to reduce the size and weight of the entire container.

[Effects of the Invention] □ In short, according to the present invention, an outer cylindrical container equipped with an ignition device and a check valve for gas discharge, and an inner cylindrical container installed in the outer cylindrical container with a space between them. , a circular gas chamber partitioned off by a partition wall into the internal cylindrical container and filled with liquefied gas, and having a check valve communicating with the space; and the interior partitioned by the partition wall. Gunpowder is added to the other end of the cylindrical container in order from the partition wall.

By including a gunpowder gas generation chamber that accommodates the ignition powder, coolant, and filter that work with the ignition device, and has a check valve that communicates with the space, it is possible to cool the gas even when a large amount of gas is required. The present invention is extremely useful industrially because it provides a gas generator that requires only a small amount of agent and can therefore be made smaller and lighter.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view showing a known gas generator. 1. External cylindrical container, 1a. Ignition device, 1b. Check valve for gas discharge, 8. Internal cylindrical container. 8a...Check valve, 8b...Division, 8c...Check valve, 8d
・・Compartment, 9・・Space, 10・・Liquid gas, 11・・Ignition powder, 12.13・・・Gas, 02・・Explosive powder, 03・・Coolant, 04・・Filter% 06・・・Gas, 07・·back. Sub-Agent Patent Attorney Masa Tsukamoto Figure 1 Figure 2

Claims (1)

[Scope of Claims] An external cylindrical container equipped with an ignition device and a check valve for gas discharge, an internal cylindrical container installed within the external cylindrical container with a space in between, and an internal cylindrical container inside the internal cylindrical container. a solid liquefied gas chamber that is partitioned off by a partition wall and filled with liquefied gas and has a check valve communicating with the space; 1. A gas generating device comprising: a gunpowder gas generation chamber which houses gunpowder, an ignition powder interlocked with the ignition device, a coolant, and a filter, and has a check valve communicating with the space.