Sporlan Valve Company

Michael G Lacey

Stephen P Pilgram

This filter-drier for removing moisture from a refrigerant includes a casing having an inlet for receiving refrigerant, an outlet for discharging refrigerant and a molded core, formed from dessicant and a binder, and disposed in the casing between the inlet and the outlet and receiving refrigerant flow therethrough. The molded core includes an outer surface at least in part engaging the inner surface of the casing. The core is held within the casing against axial movement by bonding with the casing or by an indentation protruding into the core or both.

Molded core filter drier

This filter-drier for removing moisture from a refrigerant includes a casing having an inlet for receiving refrigerant, an outlet for discharging and a molded core disposed in the casing between inlet and outlet. In one embodiment, the core includes an outer surface in part engaging the inner surface of the casing. Axial movement of the core is prevent by bonding with the casing or by an indentation protruding into the core or both. Another embodiment includes a filter media pad bonded to the core sufficiently to hold the pad in place eliminating the need for outlet support screens. In another embodiment suitable for reversible operation in a heat pump system, the filter-drier includes a hollow cylindrical core having a filter media bonded to the core and defining a filter media lined passage, the core being held in place by end plates having opposed axial check valves and offset check valves.

Molded core filter drier with filter media molded to core

This filter-drier for removing moisture from a refrigerant includes a casing having an inlet for receiving refrigerant, an outlet for discharging and a molded core disposed in the casing between inlet and outlet. In one embodiment, the core includes an outer surface in part engaging the inner surface of the casing. Axial movement of the core is prevented by bonding with the casing or by an indentation protruding into the core or both. Another embodiment-includes a filter media pad bonded to the core sufficiently to hold the pad in place eliminating the need for outlet support screens. In another embodiment suitable for reversible operation in a heat pump system, the filter-drier includes a hollow cylindrical core having a filter media bonded to the core and defining a filter media lined passage, the core being held in place by end plates having opposed axial check valves and offset check valves.

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Marthasville, MO, United States of America

Michael G Lacey