Abstract: An exemplary system for controlling air pressure in a tire of a vehicle includes an air transfer ring assembly including a reservoir member, a cover member, a first air transfer member, a second air transfer member, and a sealing member configured to seal the reservoir member against the cover member and defining a pressured reserve air chamber. The reservoir member is coupled to a hub assembly of the vehicle and the cover member is coupled to a brake assembly of the vehicle to facilitate the transfer of air to and from a rotating vehicle component and a stationary vehicle component.

Abstract: An air suspension system includes a rigid frame member defining an unsealed fixed volume. An air reservoir is disposed within the fixed volume and variably occupies the fixed volume. The air reservoir includes a flexible bladder expandable between an unfilled volume, a first filled volume, and a second filled volume larger than the first filled volume. The first filled volume and the second filled volume at least partially expand into the fixed volume of the rigid frame member. A fill port is formed in one end of the flexible bladder and provides access to the expandable volume. A feed tube is disposed through the fill port into the expandable volume and is in airflow communication with the expandable volume. At least one air spring is in airflow communication with the air reservoir.