Patent ID: 8490641

Claim:
A compressed air supply system for a utility vehicle, the system comprising: a compressed air inlet coupleable to a compressor; a filter unit coupled to the compressed air inlet via a delivery line; a discharge valve element coupled to a discharge outlet and the delivery line; an energy saving control outlet coupleable to a control inlet of the compressor; a delivery line shut-off valve element interposed between the compressor and the filter unit; a first valve element and a second valve element, the discharge valve element, the energy saving control outlet, a regeneration of the filter unit and the delivery line shut-off valve element being controllable by the valve elements, wherein the energy saving control outlet and the delivery line shut-off valve element are controllable by the first valve element, wherein the discharge valve element and the regeneration of the filter unit are controllable by the second valve element, wherein the delivery line shut-off valve element is closed during a regeneration phase of the filter unit and is transferable to an opened control state outside the regeneration phase when the discharge valve element is closed and the energy saving control outlet is supplied with air, and wherein the compressed air supply system comprises a third valve element connected to a control inlet of the delivery line shut-off valve element for controlling the delivery line shut-off valve element.