Wabco Gmbh & Co Ohg

Wabco Automotive UK Limited

Mark Paling

Ignitius Milomo

Andrew G L Blackwood

Stephan Niemeyer

Christian Fischer

Andreas Stephan

Andrew Blackwood

An air dryer desiccant cartridge, the cartridge comprising a base having an inlet and an outlet, and a casing connected to the base to define a cavity there between, wherein the cavity contains a filter and a desiccant, the filter being arranged upstream of the desiccant such that during normal operation fluid flow entering the cartridge through the inlet passes through the filter and then on to the desiccant before reaching the outlet, and during purging of the cartridge purge flow entering the outlet passes through the desiccant before reaching the filter, wherein further the cartridge includes a valve operable to permit a portion of the purge flow to bypass the filter.

Air dryer cartridge

The present invention relates to an air dryer () for a vehicle air system. The air dryer () includes a body () and a desiccant canister (), the body () having an inlet () to receive air from an air source, an outlet () to supply air to a vehicle air system, a purge outlet and a regeneration inlet () to receive regenerative airflow from the vehicle air system. The body () is further provided with a chamber () containing a coalescer ()positioned between the inlet () and the desiccant canister (), and a bypass valve () positioned between the chamber () and the purge outlet. The coalescer () and bypass valve () are arranged such that during normal operation air entering through the inlet () passes through the coalescer () before reaching the desiccant canister () and during regeneration of the desiccant a portion of the regeneration flow passes through the coalescer () and the remainder of the regeneration flow bypasses the coalescer () through the bypass valve (). The chamber () and coalescer () are fully provided within the air dryer body ().

Air dryer

An air dryer cartridge () is provided with an inlet connectable to a compressed air source, an outlet connectable to a reservoir and a desiccant () provided intermediate the inlet and outlet adapted to remove moisture from air passing through the air dryer cartridge (), wherein the air dryer cartridge () further includes a filter () to capture oil droplets present in air received from the source, and wherein further the filter () is positioned downstream of the desiccant ().

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Leeds, United Kingdom

Mark Paling