Invention Grant
- Patent Title: Method for controlling a laundry dryer including a fan motor for driving a drying air stream fan with a variable speed
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Application No.: US14647243Application Date: 2013-11-18
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Publication No.: US09758921B2Publication Date: 2017-09-12
- Inventor: Alberto Bison , Francesco Cavarretta , Maurizio Ugel , Massimiliano Vignocchi
- Applicant: Electrolux Home Products Corporation N.V.
- Applicant Address: BE Brussels
- Assignee: Electrolux Home Products Corporation N.V.
- Current Assignee: Electrolux Home Products Corporation N.V.
- Current Assignee Address: BE Brussels
- Agency: Banner & Witcoff, Ltd.
- Priority: EP12194170 20121126
- International Application: PCT/EP2013/074042 WO 20131118
- International Announcement: WO2014/079800 WO 20140530
- Main IPC: D06F58/28
- IPC: D06F58/28 ; D06F58/20

Abstract:
A method is provided for controlling a laundry dryer including a fan motor (26) for driving a drying air stream fan (18) with a variable speed (vf) and a drum motor (28) for driving a laundry drum (12). The method comprises the steps of setting a predetermined course for the speed (vd) of the drum motor (28), maintaining the speed (vd) of the drum motor (28) according to the predetermined course for the speed (vd) of said drum motor (28), detecting a power (Pd) or a current absorbed by the drum motor (28), and controlling the speed (vf) of the fan motor (26) on the basis of the absorbed power (Pd) or current of the drum motor (28). The speed (vf) of the fan motor (26) increases with a decreasing absorbed power (Pd) or current of the drum motor (28) and/or the speed (vf) of the fan motor (26) decreases with an increasing absorbed power (Pd) or current of the drum motor (28).
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