Wheel valve arrangement and tire pressure control system having at least one such wheel valve arrangement
Abstract:
The present disclosure relates to a wheel valve arrangement (1) for a tire pressure control system of a vehicle, which wheel valve arrangement (1) comprises a pneumatically switchable wheel valve (2) and a shuttle valve (3) operating on the pressure balance principle as a vent valve, the control input (6) of which is to be connected to a tire connection channel (7) leading to a tire interior, and the input (4) of which is to be connected as control input to an air supply line. Said wheel valve arrangement (1) is characterized by the fact that the pneumatically controllable wheel valve (2) is connected into the tire connection channel (7) for closing and opening a fluid path between the shuttle valve (3) and a wheel connection (9) belonging to the wheel valve arrangement (1), which wheel valve (2) has a valve body (17) which can be moved by a piston rod (19) which, by means of a least one spring element (24), acts against the valve seat (13) assigned thereto in the closed position and which can be moved by the piston rod (19) into an open position moved away from the valve seat (13), and has a control piston (22) guided in a control cylinder (21) and connected to the piston rod (19), which control cylinder (21) is to be connected or is connected by the control chamber (28) of the control cylinder delimited by the drive side of the control piston (22) via the control line (29) to the supply line (5) on the input side of the shuttle valve (3), wherein the control piston (22) is designed in order that the valve body (17) can be moved away from the valve seat (13) of the valve body by means of the target tire filling pressure present in the air supply line (5) in order to open the wheel valve (2). The present disclosure further relates to a tire pressure control system for a vehicle having such a wheel valve arrangement.
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