Patent · US Active

Method of and a device for reducing the azimuthal torque acting on a pulling pod unit or azimuth thruster

US9346526B2 · kind B2 · utility

1Cited by

0References

18Claims

0Family size

Assignee

Rolls-Royce Corporation · US

Inventors

Anders Ottosson · Karlstad, SE
Rikard Johansson · Sundsvall, SE

Key dates

Filing date	Oct 5, 2012
Grant date	May 24, 2016
Priority date	—
Expiry date	Nov 26, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB63H2005/1254
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

This invention relates to a device and method of reducing the azimuthal torque acting on a pulling pod unit or azimuth thruster (1) having a rotary pod housing (2) with a substantially vertical slewing axis (3) and a fixed downwardly directed first fin (4) carried by the pod housing (2) abaft the slewing axis (3), wherein said first fin is in the form of an elongated strip-shaped vane (4) and extends abaft the slewing axis (3) along the pod housing (2) to the vicinity of a rear end (5) thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.