Rotatable-drum laundry drier and method of controlling a rotatable-drum laundry drier to dry delicate laundry

摘要

A laundry dryer (1) has a laundry drum (3) which is designed to rotate about an longitudinal axis (6). An air recirculating conduit (10) is connected to the laundry drum (3). A heater device (10) is located along air recirculating conduit (10) to heat the airflow. A rotatable fan (11) is located along air recirculating conduit (10) to produce an airflow flowing through drum (3). The fan (11) is designed to be rotated in a main and secondary direction of rotation for providing different air flow rates. An electric motor (14) is mechanically connected with the fan (11) and the drum (3) for rotating the fan (11) and drum (3), simultaneously. The home laundry dryer (1) further has electric control means (18) configured to control the electric motor (14) so as to cause: the drum (3) to rotate at a first rotational speed (v1) in a forward direction of rotation, thereby resulting in the fan (11) being rotated in the main direction of rotation for providing a first air flow rate; or the drum (3) to rotate at a second rotational speed (v2) greater than said first rotational speed (v1) in a reverse direction of rotation, thereby resulting in the fan (11) being rotated in the secondary direction of rotation for providing a second air flow rate lower than the first air flow rate.