Washing machine with a direct drive system
A washing machine with a direct drive system comprises a tub, a drum rotating inside the tub, a shaft connected to the drum for transmission of a driving force of a direct drive motor, a coaxial support connected to a rear portion of the tub and having a seat for a first bearing supporting an end of the shaft opposite the drum, a stator restrained by the coaxial support and having a plurality of magnetic cores, a rotor provided with permanent magnets and connected to the shaft, a second bearing for supporting a portion of the shaft between its end and the drum, the tub (12) being made of polymeric material and being provided with a hub-shaped metal seat for the second bearing (18) which is co-moulded with the tub.
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Published patent application
Disclosure date: 10-02-2007
Publication date: 11-18-2009
Applicant: WHIRLPOOL CO, US
Inventor: MAENTELE GERD, IT ; CHIRIATTI ANTONIO, IT ; WERNER KURT, IT ; PETRACEK PAVOL, IT
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