Patents Assigned to Simens Canada Limited
  • End cap for an ultra quiet electric motor
    Patent number: 5969447
    Abstract: A high speed electric motor for automotive applications that is designed to effectively minimize vibration of its component parts and thus suppress noise generated during its operation. The motor incorporates acoustic engineering principles including surface vibration control, acoustic radiation efficiency, active intensity field control and noise control using acoustic materials to reduce overall vibration of the motor components and the motor noise sensed by the passenger of the vehicle.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: October 19, 1999
    Assignee: Simens Canada Limited
    Inventors: Haran K. Periyathamby, Marek Horski