Gas generator for a safety device for a motor vehicle

A technology of gas generators and safety devices, applied in vehicle safety arrangements, pedestrian/passenger safety arrangements, vehicle components, etc., can solve unsatisfied problems

Active Publication Date: 2011-03-23
AUTOLIV DEV AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But they don't meet the above criteria

Method used

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  • Gas generator for a safety device for a motor vehicle
  • Gas generator for a safety device for a motor vehicle
  • Gas generator for a safety device for a motor vehicle

Examples

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Embodiment Construction

[0035] figure 1 The gas generator shown comprises a cylindrical tubular housing 1 with an axis XX', one end 1A (left in the figure) is open, with an opening 11; the other end 1B is closed, placed transversely (i.e. perpendicular Axis XX') flat bottom 10 seal.

[0036] The portion of the circumferential wall of the housing near the bottom 10 is pierced by a plurality of discharge holes 100 which penetrate radially through the wall of the housing 1 .

[0037] This generator comprises a pyrotechnic initiator 2 of universal type with connecting pins 20 , 21 ; it is located axially in the opening 11 of the casing 1 .

[0038] More specifically, the pyrotechnic initiator 2 is mounted inside an intermediate part 3 called a "transition sleeve".

[0039] The inner profile aperture of the adapter sleeve fits the profile of the pilot burner 2; this aperture has a frusto-conical shoulder on the "open" side of the casing 1 (left in the figure) which rests against a slope surface, and ha...

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Abstract

This generator comprises a tubular casing (1) sealed by a bottom (10), with a wall crossed by discharge orifices (100), and includes: an adapter sleeve (3) retained in the tubular casing (1) by crimping; a pyrotechnic initiator (2); a tubular filter (7) covering the discharge orifices (100); a pyrotechnic charge (6) inserted in-between the adapter sleeve (3) and the bottom (10); means for securing the charge comprising, on the bottom side, a transverse partition, and on the open side, an open-worked washer (4) urged towards the bottom (10); a sealing member (8) capable of breaking during combustion of the charge, then allowing the gases to escape out of the casing (1) via the filter (7) and the discharge orifices (100); and in that after failure of the sealing member (8, 90), the space occupied by the pyrotechnic charge (6) is delimited axially by said open-worked washer (4) and said bottom (10). Safety equipment for automobiles, notably for inflating an inflatable safety bag.

Description

technical field [0001] The invention relates to a gas generator for a safety device of a motor vehicle, for example for inflating an inflatable protective bag. Background technique [0002] The object of the invention is to provide a generator which combines the following advantages: [0003] -high performance; [0004] - work reliably, especially in the control of combustion; [0005] -compact; [0006] - lightweight; [0007] -low cost; [0008] -Easy to manufacture. [0009] Documents AT-0069441 and EP-1329365 already disclose gas generators for use in safety devices of motor vehicles. But they do not meet the above criteria. Contents of the invention [0010] The invention relates to a gas generator for a safety device of a motor vehicle, comprising: [0011] - a tubular casing, open at one end and closed at the other end by a bottom, the part of the peripheral wall of the casing located near said bottom being pierced by a discharge hole; [0012] - an adapter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/264
CPCB60R21/2644
Inventor 洛朗·科斯特卡尔德伊戈尔·拉米卡特琳·吕凯
Owner AUTOLIV DEV AB
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