Abstract: This invention relates generally to desiccant cartridges for use in R/Ds or accumulators canisters of automotive air conditioning systems. More specifically, this invention relates to a desiccant cartridge including a cup having inner and outer walls coaxially disposed wherein the inner wall defines an elongated center tube having opposing first and second ends. The first end of the center tube communicating with the outlet port in an R/D or accumulator canister to eliminate the fluid flow tube used therein.

Abstract: An adsorbent package is provided for mounting to a filter or bleed nipple that is, in turn, attached to a bight tube or other fluid flow conduit in an auto or truck refrigerant accumulator or receiver-dryer. In a preferred form of the invention, a centrally disposed opening is provided in the adsorbent package and is surrounded by a rigid collar. The opening is dimensioned so that it will be force or snap fit over a flange or the like on the filter. Fluid flow passages are provided adjacent the opening to ensure free flow of liquid refrigerant and compressor lubricating oil through the filter into the fluid flow conduit.