Abstract: A washing and drying machine has a treatment tub and comprises: a washing circuit, for drawing liquid from the tub and conveying it back into the tub, having a pump and means for heating the liquid; a drying circuit for extracting air from the tub and conveying it back into the tub, having a first fan, means for dehumidifying the air, and means for heating the dehumidified air; and a heat-pump arrangement having a refrigerating circuit for a refrigerant fluid, which includes a first condenser, a first evaporator, a first lamination valve, and a compressor. The means for heating the liquid comprise the first condenser, and the refrigerating circuit further comprises a second condenser, in series to the first condenser, and a second evaporator. The means for dehumidifying the air comprise the second evaporator, and the means for heating the dehumidified air comprise the second condenser.

Abstract: A washing and drying machine has a treatment tub and comprises: a washing circuit for drawing liquid from the tub and conveying it back into the tub, having a pump and means for heating the liquid; a drying circuit for extracting air from the tub and conveying it back into the tub, having a first fan, means for dehumidifying the air, and means for heating the dehumidified air; and a heat-pump arrangement having a refrigerating circuit for a refrigerant fluid, which includes a first condenser, a first evaporator, a first lamination valve, and a compressor. The means for heating the liquid comprise the first condenser, and the refrigerating circuit further comprises a second condenser, in series to the first condenser, and a second evaporator. The means for dehumidifying the air comprise the second evaporator, and the means for heating the dehumidified air comprise the second condenser.

Abstract: The present invention relates to a heat-pump clothes drying machine, in particular a heat-pump arrangement for removing moisture from and heating up the drying air; said heat-pump arrangement comprises a plurality of separate closed-loop circuits, each one of said separate closed-loop circuits comprising at least one compressor (20, 30; 220, 230; 320, 330), at least one evaporator (22, 32; 222, 232; 322, 332), at least one expansion valve (24, 34; 224, 234; 334, 324), and at least one condenser (26, 36; 226, 236; 336, 326).

Abstract: The present invention relates to a heat-pump clothes drying machine, in particular a heat-pump arrangement for removing moisture from and heating up the drying air; said heat-pump arrangement comprises a plurality of separate closed-loop circuits, each one of said separate closed-loop circuits comprising at least one compressor (20, 30; 220, 230; 320, 330), at least one evaporator (22, 32; 222, 232; 322, 332), at least one expansion valve (24, 34; 224, 234; 334, 324), and at least one condenser (26, 36; 226, 236; 336, 326).