Air Bags

By Pete

Intro

This report is all about a special piece of technology called Air Bags.  Have you ever wanted to know how much airbags help you when you crash and how fast they inflate and how many lives it has saved?  Then read my report report!  In my report I will tell about how it works, including what chemicals it uses to inflate, and it tells the history of airbags and how to buy one new.  So read my report!

What it is or does and how it works

This paragraph is about airbag inflation.  Marshall Brain said: the airbag inflates in .05 seconds using nitrogen gas (N2), Freon, heated air (or compressed), carbon dioxide (CO2), or a mixture of water and potassium (KH20), and they will not inflate in a side or rollover crash (at least the front one wonÕt).  To inflate, the inflator unit receives a signal from the crash sensor that tells it to inflate.

 

This paragraph is about airbag life saving.  According to Marshall Brain: It is estimated that airbags have saved 10,271 lives as of January 2003.  The airbag reduces your chance of dying in a frontal crash for the driver 30% and the passenger 27%.  For children under 12, it is best to sit in one of the back seats.

 

How do airbags work?  According to Mary Bellis: The crash sensor is a ball in tube that is designed to sense a crash and send it to the inflator unit.  The kinds of airbags are side airbags (curtain), driver, and passenger.

 

 

 


                                   

 

 

 

 

 


What else can airbags do? According to Wikepedia.com: One other thing it can do and is used for is landing space shuttles, and was first used for to land Luna 9 and Luna 13, which landed on the Moon in 1966 and has been further used to land probes and other ships on other planets like mars.

Picture from NASA archives; in the public domain                                    This is some scientists testing a mars bound probe.

 

 

 

 

 

History

What are some details about the airbags invention? According to wikepedia and Mary Bellis: The airbag was invented by John Walter Hetrick and was later revised by Allen Breed.  It was invented to save lives in 1951.  It was invented in Newport, PA, U.S. when Allen Breed actually revised it; he invented the crash sensor (it was formerly set off by bumper contact or the driver) and discovered the right chemicals to use to inflate it quickly.

 

What were some problems they had when they were inventing it? According to wikepedia: Compressed air was not fast enough to fill the airbags in time and the bumper contact and driver were not good enough, and so through the next 50 years the airbag underwent a lot of changes.

 

What is the history of cars & airbags? According to wikepedia: The first car to offer the airbag to the public was the Oldsmobile tornado in 1973, and the Porsche was the first car to offer front and passenger airbags.  Cars were required to have airbags in 1998 and light trucks fell under rule the following year.  One major production time was by GM and Ford from 1973-1976, they made about 12,000 vehicles with airbags.

 

Usage and buying

How do you buy an airbag? According to wikepedia:

Airbags are sold as SRS (Supplemental Restraint System).  To buy a new one it costs about $500.

 

What are some different sizes and locations of airbags? According to wikepedia: There are airbags in the side of the door, in the back seats called curtains and the driver has one in the wheel and the passenger has one in the dashboard.

Conclusion

In conclusion, you might think of Air bags as a life saving device, and do you think .05 sec. is fast? And 10,271 lives 4 years ago is any difference, and that 30% will help when you crash? So now do you think it was worth it to read this report?

 

 

 

 

 

 

bibliography

 

 

1

Bibliography

Source:

http://en.wikipedia.org/wiki/Airbag

Author:

wikipedia

Title:

airbag

Date of retrieval:

24-Apr-07

Brief Summary:

it has 6 pictures and 51 articles and tells quite a few things!

 

 

2

Bibliography

Source:

http://www.howstuffworks.com/airbag.htm

Author:

Brain, Marshall

Title:

how airbags work

Date of retrieval:

24-Apr-07

Brief Summary:

it has 8 paragraphs and tells a lot of dates and numbers

 

 

 

 

 

 

 

bibliography

Source:

http://inventors.about.com/od/astartinventions/a/air_bags.htm

Author:

mary bellis

Title:

the history of airbags

Date of retrieval:

4-26-07

Brief Summary:

it has 10 articles an 1 picture and tells history of cars and airbags