CYCLE INVERSION VALVE FOR REFRIGERATION/HEATING SYSTEMS OF ABSORPTION HEAT PUMP TYPE

摘要

A cycle inversion valve for refrigeration/heating systems of absorption heat pump type, presenting a body (2) provided with two cavities (3, 4) connected together by internal refrigerant fluid channels (10), said cavities (3, 4) being connected to the outside by passageways (9) for said fluid, comprising two spools (5, 6, 5', 6') movable within said cavities (3, 4) to enable ports to be interconnected in different ways and presenting seal means (13) for sealing against inner walls of said cavities (3, 4), said seal means (13) being radially loaded to improve their sealing capacity.