Ship's steering unit whose angular position is servo-controlled by an electric motor

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United States of America Patent

APP PUB NO 20040134403A1
SERIAL NO

10622428

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Abstract

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The ship's steering unit comprises a mounting which is part of the structure of the ship, and in which a rudder is pivotally mounted, the angular positioning of said rudder being servo-controlled by a motor. The motor is an electric motor comprising a stator rigidly fixed to said mounting, and a rotor rigidly fixed to said rudder. The steering motor is powered at variable frequency and at variable voltage, and it transmits the torque necessary for servo-controlling the rudder electromagnetically, i.e. without physical contact, thereby eliminating problems of wear. In addition, the steering unit is simplified by reducing the number of items of equipment making up said unit, thereby making it easier to install on board and contributing to making it more reliable.

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Patent Owner(s)

Patent OwnerAddress
ALSTOM3 AVENUE ANDRE MALRAUX F-92300 LEVALLOIS-PERRET

International Classification(s)

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  • 2003 Application Filing Year
  • B63H Class
  • 368 Applications Filed
  • 95 Patents Issued To-Date
  • 25.82 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2003200420052006200720082009201020110255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Moneuse, Nicolas La Baule Escoublac, FR 1 2

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  • 2 Citation Count
  • B63H Class
  • 4.23 % this patent is cited more than
  • 21 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges91444514101 - 1011 - 2021 - 3031 - 400102030405060708090100110120130140150160

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