Gas generator

A technology of gas generator and gas generating agent, which is used in belt tensioners, seat belts in vehicles, vehicle safety arrangements, etc., can solve the problems of difficult gas being fully cooled, released again, and thinned.

Inactive Publication Date: 2008-04-30
NIPPON KAYAKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the gas generator is miniaturized, the wall thickness of the filter material itself, which has the effect of cooling the high-temperature gas, also needs to be thinned, and it is difficult to sufficiently cool the released gas and release it again.

Method used

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Embodiment Construction

[0027] A first embodiment of the gas generator according to the present invention will be described with reference to FIG. 1 . In FIG. 1 , the gas generator P1 mainly inflates the safety belt of the gas belt, and is composed of the following components: a housing 1 composed of a long cylindrical outer cylinder 8 , and an ignition mechanism installed inside one end of the housing 1 . The igniter 5 of 1, the combustion chamber 2 formed in the housing 1, the gas generating agent 3 and the filter material 4 filled in the combustion chamber 2, are formed on the other end side of the housing 1 and have the function of connecting the inside and outside of the housing 1. The gas discharge tube 7 of the gas discharge hole 6. In addition, the so-called air belt refers to a device installed on a vehicle seat, and inflates the seat belt by introducing clean gas emitted from the gas generator P1 into the elongated bag-shaped seat belt.

[0028] One end of the housing 1 is installed with a...

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PUM

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Abstract

A gas generator comprising a housing (1), a combustion chamber (2) formed in the housing (1), the combustion chamber being packed with gas generant (3) to generate high temperature gas by burning and also having a filtering member (4), an igniter device (I), secured in the housing (1), for igniting and burning the gas generant (3) packed in the combustion chamber (2), and a gas discharge hole (6), formed in the housing (1), to communicate between an interior of the housing (1) and an exterior of the same through the combustion chamber (2) and a gas flow pass (S), wherein a coolant (21) is arranged in the gas flow pass (S).

Description

technical field [0001] The present invention relates to a gas generator suitable for inflating an air bag, etc., and particularly relates to a gas generator having an excellent cooling effect of high-temperature gas. Background technique [0002] In order to protect occupants from the impact of a car collision, the gas generator that rapidly inflates and deploys the airbag is assembled on the airbag module installed in the steering wheel or the dashboard. In addition, it is also used as an inflator for an air belt by being incorporated into an airbag module installed in a seat belt buckle. In the gas generator, an igniter (electric squib) is ignited by energization from a control unit (actuator), and the gas generating agent is burned by the flame to generate a large amount of gas rapidly. [0003] In recent years, the shape and size of gas generators have been limited due to the increase in the degree of freedom of interior design of automobiles, and miniaturization of gas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R21/26B60R21/264B60R22/46
CPCB60R2021/2648B60R21/2644B60R22/4628B60R2021/2633B60R21/272B60R21/263B60R2021/26029
Inventor 吉田昌弘儿玉了意岸野喜行
Owner NIPPON KAYAKU CO LTD
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