The Danaus-Runflat™

Engineered metal runflat tire-space insert with built-in air-shock crown

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Two ProblemsTire puncture or rupture by bulletsor spikes or sharp rocks and such results in complete decompression.The tire then must run on flat, whichmay damage the rim and the vehicle and can cost lives due to instable ride.Runflat inserts alleviates this problem.

Driving on sand and similar soft soil,off-road vehicles require increased contact surface for better traction. The tire is then partially decompressed. Without bead-lock, such tires may roll off the rim, causing further damage and danger. Reinforced rubber and plastic runflat inserts work against the purpose.

Rim well fillers, well-less rims and bead locks

These prevent tire loss, allowing to drive on the rim with further tire damage and borrow time to move on for short while.

Running on flat solutions

Reinforced tire walls or runflat insert

Driving on sand solutions

Thread footprint doubles but sets limitation on a rigid runflat insert.Partially deflated tire has greatly reduced boulder impact resistance.Engineered runflat is needed with large deflection (stroke) capacity.

Engineered runflat solution

Radially flexible, laterally rigid steel/alloy/composite runflat insert. When its running surface is Teflon coated, the tire need no lubricant.

Built-in air-cylinders

Lightweight adjustable pressure aluminum or steel assembly.For rims with well, the shock crown is mounted on inner drum.

The Danaus-Runflat™ kit

Rim mounted Bare kit

Main advantages

• It can go hundreds of miles with flat tire• It can take multiple gunshots unharmed• It can isolate the blast of roadside bombs• It has exceptional stability on sand/soft-soil • It has high boulder/ditch impact resistance• It has adjustable progressive/linear stiffness• It boosts the sprung-unsprung mass ratio• It can save fuel by harmonic pressure control• It stabilizes ride by centering the load support

Special features

The shock-crown is a large twist angle torque limiting flexible torque coupler, which prevents

• drivetrain overload,

• digging in sand, mud, snow and soft soil,

• slipping on snow, ice and slick pavement,

• excessive drivetrain wear,

• loss of bearing capacity, and

allows for stiffness control by shock-pressurizing.

Disadvantages

• It costs more than a solid rubber insert

• It has moving parts with pistons and seals

Availability

Patents pending.Production plan is not set yet.

Upon preorder, it will be farmed out to competent industry.The new technology is available for worldwide licensing.

Contact Dr. Kemeny at +1-888-588-0999 or Mr. Zuccone at +1-480-317-9911.