Air generator for seat by a secondary driver

A technology of gas generator and gas generating agent, which is applied in vehicle safety arrangement, pedestrian/passenger safety arrangement, transportation and packaging, etc. It can solve problems such as difficult to control outlet pressure, blockage and damage of filter screen, and slow down the impact of high-temperature airflow The speed and outlet pressure are stable, avoiding the effect of too much pressure

Active Publication Date: 2008-01-30
HUBEI HANGPENG CHEM POWER TECH
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

But these patents have the following major problems: (1) the above long cylindrical shells, the combustion chambers are all longer, and there are more gas generating agents, and most of them have adopted long ignition tubes, which require more ignition powder when igniting, and The ignition mechanism is complex and the filter screen is thicker, which directly leads to higher cost and difficulty in ensuring reliable high-speed combustion; (2) due to the use of a small ignition area, the high-speed airflow and solid particles generated by combustion will destroy the unburned gas generating agent. The filter screen is clogged on the filter screen, resulting in too high pressure in the combustion chamber, it is difficult to control the outlet pressure, and the time for generating the initial pressure is prolonged; (3) the above-mentioned patents do not provide fixed limits for the internal components of the long cylindrical gas generator structure

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  • Air generator for seat by a secondary driver
  • Air generator for seat by a secondary driver
  • Air generator for seat by a secondary driver

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Embodiment Construction

[0024] As shown in Figure 2, the present invention is made up of cylinder body 1 and the upper end cap 18 and the lower end cap 11 that are positioned at two ends of cylinder body 1, and upper end cap 18, lower end cap 11 and cylinder body 1 are welded into one by laser, and upper cover The top of 18 is flat, and there is a round hole 20 in the center at the position of the axis 19. The outer edge 21 of the cover is bent downward to form an axial annular section 23, which contacts with the inner side 22 of the cylinder to form a V-shaped welding groove 15. The lower end cover 11 It is a plane, perpendicular to the axial direction of the generator, and the outer circle of the lower end cover 11 is bent upward and axially to form an annular peripheral surface 16 that is closely matched with the inner side 22 of the cylinder body. V-shaped welding groove 39.

[0025] An ignition chamber 2 , a combustion chamber 8 and a filter chamber 12 are sequentially provided axially from the ...

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Abstract

A gas generator for secondary driver of car is composed of a cylindrical barrel and both end covers. Said cylindrical barrel contains an ignition chamber with igniter, base and igniting cup, a combustion chamber with gas generating tablets, elastic disc for fixing said tablets and compressed spring, and a filter chamber. Its advantages are high speed to create initial pressure, stable outlet pressure of combustion chamber, and high filtering effect.

Description

technical field [0001] The invention relates to a co-pilot gas generator for providing inflation in an automobile safety protection buffer system. Background technique [0002] The safety protection buffer system of a car, as shown in Figure 1, generally includes impact sensors, controllers, gas generators, air bags, etc. When the car collides, the sensor measures the inertial acceleration caused by the car collision, and transmits the signal to the controller. The controller judges the magnitude and duration of the collision acceleration. If the magnitude and duration of the acceleration exceed or reach the predetermined limit value, The controller sends an ignition signal to start the gas generator. The gas generator will be activated, and a large amount of gas will be generated to fill the air bag, and the air bag will rapidly inflate and spread out in front of the occupant, thereby avoiding the occupant from colliding with other hard objects of the vehicle due to the in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R21/26B60R21/264
Inventor 姚俊叶峻范智罗运强陶自成
Owner HUBEI HANGPENG CHEM POWER TECH
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