Wheel unit of a vehicle and a valve assembly for a wheel unit

A system with a valve assembly for inflating or at least partially deflating a tire of a wheel unit of a vehicle having a rim on which the tire is or can be mounted, the system comprising:

• a hub that can rotate about an axis of rotation (T) and to which the rim is or can be connected, wherein the hub comprises:
• a hub body in which a control element is mounted such that it is displaceable relative to the hub body in a direction of the axis of rotation (T) between a first position and a second position, wherein at least one fluid channel fluidically connects the tire to a first space formed between the control element and the hub body configured in or on the rim, wherein, in the first position of the control element, a fluidic connection between the first space and a second space formed between the control element and a wheel flange of the rim is interrupted, and wherein, in the second position of the control element, a fluidic connection between the first space and the second space is established,
• a valve assembly comprising a canister-shaped or cartridge-shaped valve body having a first port for control and/or working pressure, wherein the first port is configured on a first end region of the valve body, an outlet separate from the first port for releasing fluid selectively or as needed when at least partially deflating the tire, and a second port configured on a second end region of the valve body opposite to the first end region, via which working pressure can be supplied to the tire selectively or as needed, and fluid from the tire can be supplied to the outlet.

A hub of a vehicle configured to rotate about an axis of rotation (T), the hub configured to couple with a rim to which a tire can be mounted and inflated with a fluid, wherein the hub comprises:

• a hub body;
• and
• a control element mounted relative to the hub body and configured to be displaced in a direction of the axis of rotation (T) between a first position and a second position,
• wherein the control element is at least partially or regionally sleeve-shaped and configured to at least partially or regionally accommodate a bidirectionally operating valve assembly of the tire,
• wherein at least one fluid channel fluidically connects the tire to a first space formed between the control element and the hub body configured in or on the rim,
• wherein, in the first position of the control element, a fluidic connection is interrupted between the first space and a second space formed between the control element and a wheel flange of the rim, and
• wherein, in the second position of the control element, the fluidic connection is established between the first space and the second space.