gas generator

Abstract

The objective is to obtain a gas generator that allows for easy control of the amount of AI agent used to ignite the gas generating agent in emergencies, even when the amount of AI agent is set to a predetermined level. [Solution] The gas generator 100 includes a housing 10, a holder 20 attached to one open end of the housing 10, and a closing member 12 attached to the other end of the housing 10 to close the other open end of the housing 10. The AI ​​agent 33 is protected by partition members 34 and 35 so as not to come into contact with the gas generating agent 31. The partition member 34 is a bottomed cylindrical member that is shorter than the cup member 32 and has an opening disposed on the gas generating agent 31 side, and is inserted inside the cup member 32. The partition member 35 is disposed inside the housing 10 so as to close the opening of the cup member 32 and at a predetermined distance from the partition member 34, so as to form a space that becomes part of the flow path for the flame of the ignited AI agent 33.

Claims

1. A long, cylindrical housing is fitted with a gas generating agent that generates gas when burned, and has a gas nozzle formed therein for ejecting the gas, An igniter capable of igniting and burning the aforementioned gas generating agent, A holder that holds a portion of the igniter and is fixed to one end of the housing in the axial direction, A closing member fixed to the other end of the housing in the axial direction, An automatic ignition agent provided within the housing, which ignites at a lower temperature than the gas generating agent, A partition member that separates the gas generating agent and the auto-ignition agent, Equipped with, The gas generator is characterized in that the partition member is capable of forming a flow path that allows the flame to reach the gas generating agent while adjusting the amount of flame when the automatic ignition agent is automatically ignited.

2. The aforementioned partition member is The first member provided on the automatic ignition agent side, A second member is disposed within the housing on the gas generating agent side relative to the first member, such that it forms a space that becomes part of the flow path at a predetermined distance from the first member, The gas generator according to claim 1, characterized in that it has the following features.

3. The partition member is a non-combustible member consisting of a layer of fibers that are non-combustible against flames when the auto-ignition agent automatically ignites, and having an air layer around the fibers. The gas generator according to claim 1, characterized in that the gas generating agent is provided on the igniter side of the non-combustible member, and the automatic ignition agent is provided on the side of the non-combustible member opposite to the igniter.

4. The partition member is a cup-shaped member having at least a bottomed cylindrical portion having an opening at one end and one or more holes in its side wall, and a flange-shaped portion formed around the opening of the bottomed cylindrical portion. The outer circumference of the flange-shaped portion is in close contact with the inner wall of the housing in an annular shape, and the flow path is formed by the outer wall of the partition member and the inner wall of the housing. The self-igniting agent is disposed on the outside of the bottom of the bottomed cylindrical portion, The gas generator according to claim 1, characterized in that the gas generating agent is disposed on the opposite side of the closed-bottom cylindrical portion from the auto-ignition agent.

5. The aforementioned partition member is A coil made by tightly winding wire, Extending from one end of the coil, one end surface is formed by winding the wire in a spiral shape, Extending from the other end of the coil, the other end surface is formed by winding the wire in a spiral shape, The gas generator according to claim 1, characterized in that it has the following features.

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