Resilient tires and wheels – Tires – resilient – Inflating devices
Patent
1990-02-12
1992-01-14
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Inflating devices
152415, B60C 2300
Patent
active
050801562
ABSTRACT:
A wheel and axle assembly is provided for a vehicle having on onboard system for controlling the pressure of air in a tire of the vehicle. The assembly comprises a stationary axle housing and a rotatable hub which carries the vehicle tire and which is mounted on the axle housing for rotation thereabout by first and second axially spaced bearing units each having inner and outer races and tapered roller bearings therebetween. Axially spaced first and second seal assemblies are provided between the axle housing and hub to provide a sealed air chamber therebetween, and one of the bearing units is in the air chamber adjacent the first seal assembly which is connected to a source of air under pressure on the vehicle. The flow path extends through the air chamber and includes a port in the hub opening into the chamber and connected in flow communication with the vehicle tire. The seal arrangement relative to the one bearing unit provides for the flow path for air between the onboard system and the vehicle tire to include the spaces between the bearing elements and the inner and outer bearing races of the one bearing unit.
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Ball Michael W.
Wilber Gregory J.
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