| 摘要 |
A laundry washing and drying machine (1) includes a casing (2) and, inside the casing, a laundry container (3, 6) for housing the laundry to be washed and dried, and a heat-pump-type, hot-air generator (10) able to circulate a stream of hot air inside the laundry-container (3, 6), and to heat up the washing water supplied to said laundry container (3, 6). The hot-air generator (10) includes a heat-pump assembly (21) which is provided with a first air/refrigerant heat exchanger (23) which is located along the air recirculating conduit (19) for heating up the airflow (f) directed to the laundry container (3, 6). A second water/refrigerant heat exchanger (24) is located out of the air recirculating conduit (19), and heats up or cools down the water arriving from the laundry container (3, 6). A third air/water heat exchanger (25) is located along the air recirculating conduit (19), upstream of the first air/refrigerant heat exchanger (23), for cooling the airflow (f) arriving from the laundry container (3, 6). A water circulation circuit (26) is provided for circulating the water stored in the laundry container (3, 6) through the second water/refrigerant heat exchanger (24) and the third air/water heat exchanger (25). A hydraulic distributor (28) is provided for reversing, on command, the flow of the refrigerant along the first air/refrigerant heat exchanger (23), the refrigerant expansion device (27) and the second water/refrigerant heat exchanger (24). |
