Tire inflation system

A tire inflation system configured to mount to and inflate a tire supported by a wheel comprising:

• a housing configured to statically couple to the wheel;
• a drive mechanism that rotates relative to the housing, the drive mechanism having a rotational axis, the drive mechanism comprising:
• a) a cam comprising an arcuate bearing surface having a non-uniform curvature, the cam rotatable about the rotational axis;
• and
• b) an eccentric mass coupled to the cam that offsets a center of mass of the drive mechanism from the rotational axis and operable between:
• a first mode, wherein the eccentric mass is substantially statically coupled to the cam;
• and
• a second mode, wherein the eccentric mass is configured to rotate relative to the cam;
• a pump cavity statically mounted to the housing positioned a radial distance away from the axis of rotation and rotatably coupled to the drive mechanism, such that the pump cavity rotates relative to the cam, the pump cavity comprising an actuating element and a chamber;
• and
• a force translator coupling the arcuate bearing surface to the actuating element, the force translator comprising an axis having an arcuate position about the rotational axis fixed to an arcuate position of the pump cavity about the rotational axis, such that the force translator rotates with the pump cavity about the drive mechanism.