Autopilot system for a vessel
Remote, electrical steering system with fault protection Patent #: 5361024
ApplicationNo. 11553343 filed on 10/26/2006
US Classes:440/78, Propeller shaft housing318/588Marine vehicles
ExaminersPrimary: Olson, Lars A.
Attorney, Agent or Firm
Foreign Patent References
International ClassB63H 20/32
AbstractAn arrangement and method for parallel alignment of propeller shafts in a first and a second underwater housing arranged on the hull of a vessel, which underwater housings are arranged to rotate around an axis of rotation which is angled in relation to the propeller shafts arranged in each underwater housing, which arrangement includes a servo motor arranged for each underwater housing, which servo motor is arranged to rotate said underwater housing. A position sensor arranged for each servo motor, which position sensor is arranged to detect an angular position of the underwater housing. A control unit in which a reference angular position of the underwater housing is arranged to be stored during a calibration of the position of the underwater housing; and a calibrator of the position of the underwater housings by storing output signals from the position sensors in the control unit during a parallel alignment of propeller shafts in two underwater housings arranged on the hull of a vessel.