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[andrei041]

How does it inflate a tire?

The SIT System is based on proven, highly reliable peristaltic pump principles. It integrates a tube chamber into the tire wall.

The tube chamber is kept closed at its lowest point by the normal tire deformation caused by the weight of the vehicle.

As the tire turns against the road this closure moves along the tube chamber, forcing more air into the tire with each wheel revolution. Simultaneously, it pulls outside air back into the chamber from the other side.
Can the pressure be adjusted?

The chamber continuously pushes air into the tire until it reaches its optimal pressure. Then, a managing valve stops the intake of outside air and allows for inside circulation between the tire and the tube chamber, back and forth.

Once the tire pressure falls below its optimal level, the managing valve disables internal air circulation and opens the intake of atmospheric air to activate the inflation again. The managing valve can be either electronic or purely mechanical. The tire pressure can be set during regular maintenance or even by the driver.

As a result, this simple solution ensures that all tires operate at optimal pressure at all times.