摘要:
The invention relates to a pressure medium supply device for a tire (16) of a wheel unit (14), to a wheel unit (14), and to a valve arrangement (48) for a rotationally fixed transition (46), in particular for a rotary feedthrough, of a pressure medium supply device (190) for a wheel unit (14). The valve arrangement (48) has a housing part (54) through which a pressure medium can flow, a control piston (56), in particular an axially movable control piston (56) which is received on the housing part (54), and a discharge element (58) with an outlet (104) for conducting the pressure medium. The housing part (54) and the discharge element (58) are received in a rotatable manner relative to each other. The control piston (56) has at least one flow channel (68) for the pressure medium, and the control piston (56) has at least one force application surface (74) to which the pressure medium can be applied. The control piston (56) can be moved between a disengaged position and an engaged position by applying pressure to the at least one pressure application surface (74), and a pressure medium line can be established between the housing part (54) and the discharge element (58) in the engaged position.
摘要:
A vehicle axle assembly is proposed, comprising a hub (12) which is mounted on a cylindrical axle beam (14) by means of a ball bearing such as to be able to rotate about a central longitudinal axis, wherein the ball bearing has an inner race (18) connected to the axle beam (14) and an outer race (20) connected to the hub (12). In order to enable an autonomous feeding of pressurizing medium into a vehicle tyre, the vehicle axle assembly is characterized by an axial inner shaft sealing ring (50) and an axial outer shaft sealing ring (52) which are arranged sealingly between the two races (18, 20) and delimit an annular chamber (54) between the two races (18, 20), a first pressurizing medium line (56) which extends through the inner race (18) or one of the two shaft sealing rings (50, 52) and opens into the annular chamber (54), and a second pressurizing medium line (58) which extends out from the annular chamber (54) through the outer race (20) and is designed to be connected to a wheel (36) that is attached to the hub (12).