Supercharge Your Innovation With Domain-Expert AI Agents!

Gas generator

A technology for gas generators and shells, which is applied to weapon accessories, vehicle components, pedestrian/passenger safety arrangements, etc. It can solve the problems of low volume compensation, low stability, expensive silicone molded body, etc., and achieve the goal of increasing pressure Effect

Pending Publication Date: 2022-07-29
ZF AIRBAG GERMANY GMBH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the wire or sheet has high weight and low permanent elasticity
In addition, they may have a negative impact on the power of the gas generator, since they may at least partially absorb the heat generated during the reaction of the pyrotechnic propellant and thereby cool the gas
In addition, components of this type may dissipate the absorbed heat to other components, as a result of which, for example in multi-stage gas generators, undesired overfiring may occur on other combustion chambers
[0007] Silicone molded bodies are more expensive and have only a low capacity for volume compensation
Silicone foam compensates for more volume, but may have too low stability during combustion
In addition, undesirable gases, flammable gases and / or fine dust may be generated by the decomposition of silica gel

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gas generator
  • Gas generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] figure 1 A gas generator 10 according to the present invention is shown. The gas generator 10 has an elongated cylindrical housing 12 at a first axial end of which an igniter 14 is provided and at a second axial end of which the housing 12 The membrane 16 is closed from the environment of the gas generator 10 .

[0039] A diffuser 18 provided with outflow openings 20 is connected in the axial direction to the housing 12 and directs the gas flowing out of the diffuser 18 to the safety device (not shown) to be activated.

[0040] The housing 12 defines a pressure chamber 22 which is connected in the axial direction A to the igniter 14 . The pressure chamber 22 is filled with compressed pressurized gas 24 .

[0041] The pressurized gas 24 includes at least one inert gas, such as argon, helium, and / or nitrogen or another suitable gas mixture, and may also include a gaseous oxidant. In this case, the gaseous oxidant consists in particular of a major part, ie more than 50...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a gas generator (10) for a safety device in a vehicle, comprising a housing (12) and a combustion chamber (36) located within the housing (12), a pyrotechnic propellant (38) and at least one filling body (40) being accommodated in the combustion chamber (36). The filling body (40) is made of melamine resin foam.

Description

technical field [0001] The present invention relates to a gas generator for a safety device in a vehicle. Background technique [0002] For example, gas generators deliver gas to fill air bags or to drive seat belt tensioners. For this purpose, the gas generator contains a gas-producing pyrotechnic propellant in the combustion chamber, which can be activated as required and decomposes quickly with the formation of gaseous products. [0003] Pyrotechnic propellants are balanced mixtures of organic or inorganic fuels and oxidants, which usually contain nitrogen and carbon. In order to control the combustion characteristics, the propellant can be formulated into suitable forms such as tablets, extrudates and granules of various geometries. [0004] A rattling noise may be caused by the movement of the propellant in the combustion chamber, eg by vibration. In order to prevent undesired movement of the fuel within the combustion chamber, packing bodies are used to fix the prop...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/264F42B3/04
CPCB60R21/272B60R21/2644F42B3/04
Inventor 多米尼克·阿森科什宝默罗尔夫·鲁克德舍尔伯恩德·韦伯德特勒夫·拉斯特
Owner ZF AIRBAG GERMANY GMBH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com