Patent ID: 6868866

Claim:
A compressed air distributing apparatus for compressed air systems of motor vehicles, comprising: a multi circuit protection valve being designed and arranged to supply a plurality of circuits with compressed air, said multi circuit protection valve including: a first solenoid valve and a second solenoid valve, each of said solenoid valves including a deaerating connection leading to the atmosphere, and a plurality of overflow valves including a valve body, a flow chamber, a rear chamber, a first effective surface, a second effective surface and a spring being located in said rear chamber, said valve body being designed and arranged to separate said flow chamber from said rear chamber, each of said overflow valves being associated with one of said circuits and being designed and arranged in a way that the opening pressure is greater than the closing pressure to allow for limited backflow, at least one of said overflow valves including a third effective surface and a fourth effective surface, said third effective surface being designed and arranged to be controlled by said first solenoid valve, said fourth effective surface being designed and arranged to be controlled by said second solenoid valve, said first solenoid valve being designed and arranged to open said overflow valve, said second solenoid valve being designed and arranged to close said overflow valve.