Patent ID: 7097696

Claim:
An air dryer system including two substantially identical air dryer units, each including, in one mode, a first moist air inlet, a first desiccant for drying air, a first dry air outlet, and first means for supplying dry air to a storage facility, said system also including, in the same mode, a first bleed valve supplying a small portion of said dry air to regenerate a second desiccant, and a first moist air purge valve for dumping moisture collected during regeneration, said system being also operable in an opposite mode and having a second moist air inlet, a second desiccant, a second dry air outlet and second means for supplying air to a storage facility, and a second bleed valve supplying a small portion of said dry air to regenerate said first desiccant, and a second moist air purge valve, and located between said moist air inlets and said desiccants, a pair of air-oil separators including means defining a generally upwardly directed air supply, each air-oil separator assembly lying in a housing, said assemblies each having a deflector plate disposed opposite said air supply, an imperforate center section and a generally vertically extending fence at least partially surrounding said center section, air passage means lying outboard of said imperforate center section and containing a filter medium, said filter medium also being associated with at least one of said center section and said fence.