1) FKR maintains constant pressure at prescribed value conditions for each type of tyre, thus leading to a substantial improvement of tyre use through:
- Eliminating loss of pressure, caused by punctures in the aforementioned limits and tyre porosity;
- Maintaining an equal pressure in all vehicle tyres, thus the overloading of some tyres to the detriment of others is eliminated;
- Optimal functioning of steering mechanism, thus obtaining a performant vehicle maneuverability to cornering (the response to cornering maneuver in case of underpressure, is inadequate, the return to driving in straight line is difficult, leading also to a change in vehicle’s gravity center).
- Assurance of prompt and firm response to braking, through maintenance of the beads in the correct position on the rim.
Failure to comply with recommended tyre pressure shall indirectly lead to premature tyre replacement. Incorrect tyre pressure in motion (underpressure or overpressure) reduces dramatically the lifespan of tyres. The three situations are illustrated below (Figure 1):
Figure 1. Tyre configuration at normal inflation pressure and at incorrect inflation pressure.
The underpressure generates:
- Thinning, separation and detachment of the tyre cord fabric, culminating with the cord fabric breaking and tyre corrosion in the side wall, as a result of excessive side wall flexions;
- Tyre overheating, leading to detachment of the tyre component elements, including the tread;
- Advanced flattening, increasing tyre contact with the driveway, decline of tread resistance and implicitly, increase of vehicle fuel consumption;
- Quick abrasion of the tyre shoulder, because in these areas the specific pressure of contact has the highest values;
- Tyre detachment from the rim, especially at turns;
- Tyre rotation on the rim, with destruction of beads at sudden brakes.
The loss of tyre pressure frequently occurs due to tyres’ perforation during movement, as well as due to tyre porosity.
The overpressure generates:
- The decrease of road grip and fast abrasion of the tread center because tyre flattening and high rigidity determine, when overpassing obstacles or level differences, occurrence of bounces and increased friction when resuming contact with the road;
- The reduction of shock absorption capacity, reducing comfort during motion;
- The increase of pressure in cord fabric and the appearance of fissures in profile canals;
- Traction power reduction due to reduced tyre contact with the road.
By installing FKR in tyres, two of the main causes of pressure loss, punctures within specified limits and tyre porosities are eliminated, thus ensuring tyre rolling at prescribed pressure, significantly decreasing the influence of destructive factors produced by underpressure.
At the same time, damaging effects of overpressure occurred during hauling time can be substantially diminished through installation of FKR in tyres, which, by its capacity of reducing temperature, shall eliminate the cause of undesired pressure increase, maintaining a corresponding pressure inside the tyres.
