Jayant N Sarode(14MCD0017)
VIT UNIVERSITY VELLORE
What is a pneumatic tire and its drawbacks
What is an airless tire?
How it works?
Different design approaches
Advantages and disadvantages
A pneumatic, or air-filled, tire is
made of an air tight inner core
filled with pressurized air.
The pressure of the air inside the
tire is greater than atmospheric
Puncture or Blowout.
A blowout at high speeds can lead
to a dangerous car accident.
Variations in air
pressure changes tire performance.
Can blow out by gunfire or
The Tweel Airless Tire was first developed in 2005
The Tweel name is a combination of the words tyre
Tweel's hub connects to flexible polyurethane
spokes which are used to support an outer rim.
WHAT IS AIRLESS TIRE?
Airless TIREs or
TIREs (NPT) ,
are TIREs that
supported by air
Eliminates air leaks or TIRE blow outs.
No maintenance required.
Remains mobile even with some of the spokes are damaged
Durability & Long Life.
Can take gunfire or explosion.
Less environmental impact.
Lack of adjustability.
Different Manufacturing technique.
Not as economic as pneumatic TIREs.
Used on some small vehicles
such as riding lawn
motorized golf carts.
In backhoe or bulldozers.
For Military vehicles
All Terrine Vehicles (ATV)
Aims to keep losses to minimum
95% manufacturing is recyclable
No improvements are made in TIREs nowadays.
Manufacturers have started to focus making
Challenge is to make it more feasible and
When done, Airless TIREs are the future TIREs.