Patent ID: 7883559

Claim:
A gas cleaning system, comprising: at least one housing having a first chamber for receiving gas to be cleaned and a second chamber for receiving and discharging clean gas, said housing having a floor separating said first and second chambers; a filter device extending along a longitudinal axis thereof in said housing and in fluid communication between said first and second chambers through which gas can flow, said filter device having filter media capable of precipitation of solid particles and of dehydration by precipitation of coalesced liquid of the gas passing therethrough and having an inner cavity surrounded by said filter media, said second chamber being between an exterior of said filter media and an inside wall of said housing; a preliminary gas dehydration cyclone upstream of said filter device provided by a circular ring surface laterally bordering said first chamber; a seat on said floor forming a passage receiving a connection sleeve on said filter device, said sleeve extending into said inner cavity of said filter device through which gas dehydrated by said dehydration cyclone flows from said dehydration cyclone into said inner cavity of said filter device; and a spiral formed from a rib projecting from a surface of said floor facing said first chamber and having grooves located therebetween.