Abstract: 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.

Abstract: The present invention relates to an air dryer (10) for a vehicle air system. The air dryer (10) includes a body (12) and a desiccant canister (14), the body (12) having an inlet (16) to receive air from an air source, an outlet (18) to supply air to a vehicle air system, a purge outlet and a regeneration inlet (24) to receive regenerative airflow from the vehicle air system. The body (12) is further provided with a chamber (28) containing a coalescer (38)positioned between the inlet (16) and the desiccant canister (14), and a bypass valve (34) positioned between the chamber (28) and the purge outlet. The coalescer (38) and bypass valve (34) are arranged such that during normal operation air entering through the inlet (16) passes through the coalescer (38) before reaching the desiccant canister (14) and during regeneration of the desiccant a portion of the regeneration flow passes through the coalescer (38) and the remainder of the regeneration flow bypasses the coalescer (38) through the bypass valve (34).

Abstract: An air dryer cartridge (10) is provided with an inlet connectable to a compressed air source, an outlet connectable to a reservoir and a desiccant (18) provided intermediate the inlet and outlet adapted to remove moisture from air passing through the air dryer cartridge (10), wherein the air dryer cartridge (10) further includes a filter (20) to capture oil droplets present in air received from the source, and wherein further the filter (20) is positioned downstream of the desiccant (18).

Abstract: The present invention relates to an air dryer (10) for a vehicle air system. The air dryer (10) includes a body (12) and a desiccant canister (14), the body (12) having an inlet (16) to receive air from an air source, an outlet (18) to supply air to a vehicle air system, a purge outlet and a regeneration inlet (24) to receive regenerative airflow from the vehicle air system. The body (12) is further provided with a chamber (28) containing a coalescing means (38) positioned between the inlet (16) and the desiccant canister (14), and a bypass valve (34) positioned between the chamber (28) and the purge outlet.

Abstract: An air dryer cartridge (10) is provided with an inlet connectable to a compressed air source, an outlet connectable to a reservoir and a desiccant (18) provided intermediate the inlet and outlet adapted to remove moisture from air passing through the air dryer cartridge (10), wherein the air dryer cartridge (10) further includes a filter (20) to capture oil droplets present in air eceived from the source, and wherein further the filter (20) is positioned downstream of the desiccant (18).

Abstract: 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 therebetween, 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.

Abstract: A coin dispensing mechanism including a rotatable plate, coin handling device being arranged on one side of the plate, and plate drive device being arranged on the other side of the plate, such that the plate provides a physical barrier separating the drive function from the coin handling function.

Abstract: The front face (20) of a disc (21) has a plurality of coin capturing pegs (22) spaced apart around its periphery. When the disc is rotated in a hopper, the pegs (22) capture coins and raise them to a dispensing point. The disc (21) cooperates with a wiping arm (25) having a pair of protrusions (26 and 27) arranged to locate the grooves (23 and 24) to provide a barrier which prevents coins from getting between the disc (21) and the arm (25).