Gas producer and gas discharge method of gas producer

JP2025005559APending Publication Date: 2025-01-17DAICEL CORP
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Patent Information

Application Number
JP2023105774
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-06-28
Publication Date
2025-01-17

AI Technical Summary

Technical Problem

Existing gas generators discharge combustion residues to the outside, which is undesirable.

Method used

The gas generator employs a gas exhaust hole with a chamfered area on the inner surface of the housing, covered by a metal seal that ruptures under combustion pressure, allowing the seal to remain partially within the hole, reducing residue discharge.

Benefits of technology

This configuration effectively minimizes the amount of combustion residue discharged by ensuring the seal remains in the hole, thus reducing residue emissions.

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Abstract

To provide technique which is capable of reducing amount of combustion residue which is discharged to outside of a gas producer.SOLUTION: A gas producer comprises an igniter, a gas generating agent which generates fuel gas by burning by actuation of the igniter, a housing which accommodates the igniter and the gas generating agent inside, a gas discharge hole which penetrates inside and outside of the housing and a seal made of a metal which is formed in sheet-like shape and is attached to internal surface of the housing and blocks the gas discharge hole by covering an opening of inner surface side of the housing in the gas discharge hole before actuation of the igniter and opens the gas discharge hole by cracking by receiving pressure of combustion gas generating by the actuation of the igniter. The gas discharge hole includes chamfering area on which a corner part of the opening of the inner surface side of the housing is removed over whole circumference.SELECTED DRAWING: Figure 2
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Citation Information

Patent Citations

  • Air bag gas generator and air bag device

    JP1998217899A