| 摘要 |
<p>A tumble dryer for the drying of laundry comprises a drum (2) arranged in a housing (1) and driven by a motor (3), heating means (7) for heating the air entering the dryer and being guided through the drum (2), first and second temperature sensing means (12, 13) for sensing the temperatures of the air led into the drum (2) and being discharged from the drum (2), and control means connected to the temperature sensing means (12, 13) for energizing and de-energizing the heating means (7) and the drum motor (3). In order to ensure a cooling down period dependent on the drum content and humidity to achieve a desired remaining humidity of the drum content the air led to the drum is guided for preheating before passing the heating means over and around the drum (2), the first temperature sensing means (12) is arranged for sensing the temperature of the preheated air (10) upstream of the heating means (7) and the control means de-energizes the heating means (7) upon reaching a first presettable temperature difference of the preheated and the discharged air (10, 8) and de-energizes the drum motor (3) upon reaching a second temperature difference of the preheated and the discharged air (10, 8). </p> |
