Pressure exchanger heat pump

Claim 1

HEAT PUMP PLANT INCLUDING A HEAT-EXCHANGER AND A PRESSURE EXCHANGER INCORPORATING CELLS FOR THE COMPRESSION AND EXPANSION OF FLUID, THE CELLS HAVING OPEN ENDS, MEANS DEFINING END-WALLS FOR THE CELLS, A SERIES OF DUCTS COMMUNICATING WITH THE CELLS AT CIRCUMFERENTIALLY SPACED PORTS IN THE END-WALLS, MEANS FOR PRODUCING RELATIVE MOTION BETWEEN THE CELLS AND THE END-WALLS, THE SERIES OF DUCTS INCLUDING AN INLET DUCT TO LEAD A STREAM OF HIGHERPRESSURE FLUID TO THE CELLS, THE STREAMS OF LOW- AND HIGHERPRESSURE BEING COMBINED IN THE CELLS INTO A SINGLE STREAM OF FLUID AT A PRESSURE INTERMEDIATE THE LOW- AND HIGHERPRESSURES, AN OUTLET DUCT TO LEAD THE SINGLE STREAM OF INTERMEDIATE PRESSURE FLUID FROM THE CELLS, THE HEAT-EXCHANGER INCLUDING A HOT PASS, AN INLET FOR THE HOT PASS COMMUNICATING WITH THE OUTLET DUCT OF THE SERIES OF DUCTS, A COLD PASS, AN OUTLET FROM THE COLD PASS COMMUNICATING WITH THE INLET DUCT OF THE SERIES OF DUCTS FOR THE ADMISSION OF LOW-PRESSURE FLUID TO THE CELLS, AND MEANS TO INTRODUCE TO THE HEAT-EXCHANGER MATERIAL TO BE HEAT PROCESSED BY HEAT DERIVED FROM THE HOT PASS AND TO REMOVE AT LEAST PART OF THE PROCESSED MATERIAL FROM THE HEAT-EXCHANGER.