How It Works: Self-Inflating Tire - Chevy Spark Forum : Chevrolet Spark Forums
 
LinkBack Thread Tools
post #1 of 1 Old 08-24-2012, 02:02 PM Thread Starter
Senior Member
 
Join Date: Aug 2012
Posts: 164
How It Works: Self-Inflating Tire

Goodyear is building a new tire that can adjust its own air pressure as it rides down the road.



Searching for the air hose in the grimiest corner of a neighborhood service station may soon become a thing of the past. With the help of a $1.5 million Department of Energy grant, Goodyear is developing a tire that regulates its own air pressure. Though the company refused to leak details of how the system works, a 2009 patent application shows that the tire employs a pressurized internal tube with inlet and outlet valves. This differs from the automatic inflation system on military vehicles that use onboard compressors. "The Air Maintenance Technology system is powered by the tire itself as it rolls down the road," says Goodyear chief technical officer Jean-Claude Kihn. Underinflation can lead to tire failure and a possible crash, but in most cases it just wastes fuel. According to Goodyear, underinflation cuts a car's efficiency by 2.5 to 3.3 percent, which, at current fuel prices, effectively adds more than 10 cents per gallon.

1. Intake

Air entering the inlet fills a small, high-pressure tube encircling the rim.

2. Big Push

Air is forced through the inner tube by ground pressure on a low tire.

3. Inflate

Tire pressure returns to normal as air fills it through the outlet valve.

4. Vent

Excess air escapes through the inlet port.

How It Works: Self-Inflating Tire - Popular Mechanics
Chev Chelios is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevy Spark Forum : Chevrolet Spark Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome