Download - Airless tyres - Non pneumatic tyres
Non Pneumatic Tyres
AIRLESS TYRES
Presenter:Anindya SinghAuto extremists
INTRODUCTION• Tyre is a rubber member which gives the cushion to the
automobile. It consists of outer cover i.e. tyre proper and tube inside.
• The tyre-tube assembly is mounted over the wheel rim and air inside the tube carries entire load and provides cushion.
FUNCTIONS• To support the vehicle load.
• To provide cushion against the shocks.
• To transmit driving and braking forces to the road.
• To provide grip for smooth steering.
TYPES OF TYRES
1. Tubed tyre
2. Tubeless tyres
NON PNEUMATIC TYRES
WHAT IS AIRLESS TYRES?• Airless Tyres or Non Pneumatic Tyres (NTP) are the
tyres which are not supported by air pressure.
Tread
Flexible Spokes
HOW IT WORKS?
The Flexible treads and the shear band deforms temporarily as the spokes bend, then quickly go back to the initial shape.
DESIGN APPROACH
NASA’s Apollo Lunar Rover
Bridgestone Air-Free Tyre Concept
DESIGN APPROACH
Michelin Tweel
Resilient Technologies
DESIGN APPROACH
Hankook I-Flex Tyres
ADVANTAGES
• No air leaks or tyre blow outs.
• Consistent economy and handling.
• No maintenance needed.
• Lengthened tread life.
• Facilitate recycling.
• Less environmental impact.
• Can take gunfire or explosion.
• Tread incorporated with water evacuation holes significantly reduce hydroplaning.
DISADVANTAGES
• Lack of adjustability
• Not as economic as pneumatic tires
• Vibrations
CONCLUSION
• The wheel is probably the most important mechanical invention of all time. The wheel has been continuously driving our civilization like a catalyst in a chemical reaction.
• This new technology will increase the safety of cars as well as have a positive impact environmentally.
THANK YOU!
Anindya Singh