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    • 23. 发明公开
    • Propulsion and steering arrangement
    • Antriebs- und Steueranordnung
    • EP2163471A1
    • 2010-03-17
    • EP08164275.3
    • 2008-09-12
    • Wärtsilä Netherlands B.V.Becker Marine Systems GmbH & Co. KG
    • Kuhlmann, HenningVan Beek, Teus
    • B63H25/38B63H25/42
    • B63H25/38B63H2025/388
    • A propulsion and steering arrangement for a vessel comprises a screw propeller (2) and a turnable rudder (10) arranged behind the propeller (2). A fairing (6) at a tail end of the propeller (2) and a bulb-shaped body (20) provided on the rudder (10) form a streamlined body which is continuous except for a narrow gap between the fairing (6) and the bulb-shaped body (20). The rudder (10) has a twisted upper leading edge (12) extending from an upper end (17) of the rudder (10) to the bulb-shaped body (20) and a twisted lower leading edge (13) extending from a lower end (18) of the rudder (10) to the bulb-shaped body (20). At least one of the upper leading edge (12) and the lower leading edge (13) has a constant twist angle.
    • 用于船舶的推进和转向装置包括螺旋桨(2)和布置在螺旋桨(2)后面的可转动舵(10)。 在螺旋桨(2)的尾端处的整流罩(6)和设置在方向舵(10)上的球形体(20)形成流线型主体,除了整流罩(6)和 灯泡形体(20)。 方向舵(10)具有从舵(10)的上端(17)延伸到球形体(20)的扭曲的上前缘(12)和从下部延伸的扭转的下前缘(13) 方向舵(10)的端部(18)到灯泡状体(20)。 上前缘(12)和下前缘(13)中的至少一个具有恒定的扭转角。