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A METHOD OF AND A DEVICE FOR REDUCING THE AZIMUTHAL TORQUE ACTING ON A PULLING POD UNIT OR AZIMUTH THRUSTER
A METHOD OF AND A DEVICE FOR REDUCING THE AZIMUTHAL TORQUE ACTING ON A PULLING POD UNIT OR AZIMUTH THRUSTER
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机译:一种方法和装置,用于减少作用在拉动吊舱单元或方位推进器上的方位角扭矩的装置
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摘要
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 (4) with a substantially vertical slewing axis (3A), a pulling propeller (7), and two downwardly directed fins (6) carried by the pod housing (4) abaft the slewing axis (3) adjacent the rear end (41) of the pod housing (4) and positioning said two downwardly directed fins (6) a distance (δ) apart, one on each side of a longitudinal plane (30) through the slewing axis (3A) on an aft part (40) of the pod housing (4) to extend substantially radially out from the pod housing (4), wherein said fins (6) are positioned to have their center planes (65) presenting a sharp angle (β) between the two fins (6) wherein the intersecting point of the center lines (65) of the fins (6) will intersect at a point above a horizontal center plane of the pod housing (4).
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