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Electric-motor-assembly-for-a-vehicle-steering-system

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Electric motor assembly for a vehicle steering system

Details

Inventors: Engelbert, Lu;
Assignee: TRW Inc. (Lyndhurst, OH)
Primary Examiner: Ramirez; Nestor
Assistant Examiner: Le; Dang Dinh
Attorney, Agent or Firm: Tarolli, Sundheim, Covell, Tummino & Szabo L.L.P.

A motor assembly (52) for a vehicle steering system (10) includes a housing (80) having an interior sidewall portion (82) and spaced apart end portions (86, 88). The assembly (52) also includes a stator (92) positioned within the housing (80). The stator (92) has an outer sidewall portion (98), a substantial part of which is spaced from the interior sidewall (82) of the housing (80). The interior sidewall portion (82) of the housing (80) is connected with the outer sidewall portion (98) of the stator (92) at predetermined contact areas (100) located proximate structural nodal points of the stator (92) for reducing acoustic noise during operation of the motor assembly (52).

DETAILED DESCRIPTION The present invention is directed to an electric motor assembly for a vehicle steering system.
The assembly includes a housing having an interior sidewall portion and spaced apart end portions.
The assembly also includes a stator positioned within the housing.
The stator has an outer surface, a substantial part of which is spaced from the interior sidewall portion of the housing.
The interior sidewall portion of the housing is connected with the stator at predetermined contact points located proximate structural nodes of the stator to thereby reduce acoustic noise of the motor assembly upon operation of the motor assembly.

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