Instruction book
9829 3199 74 13
2.2 Air flow
Air drawn in through air filter (AF) and the open inlet valve of the unloader assembly (UA) is
compressed in the low-pressure compressor element (El) and discharged to the intercooler (Ci).
The cooled air is further compressed in the high-pressure compressor element (Eh) and
discharged through the pulsation damper (AS) and the aftercooler (Ca). A check valve (CV) is
provided downstream of the pulsation damper (AS). When the compressor switches to unload
operation, the air trapped in the pulsation damper and the high-pressure element is blown off via
the blow-off silencer (US). The checkvalve (CV) prevents that compressed air downstream the
checkvalve is blown off.