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    THRUST CLEARANCE MEASURING DEVICE, THRUST CLEARANCE MEASURING METHOD, AND MARINE VESSEL
    5.
    发明公开
    THRUST CLEARANCE MEASURING DEVICE, THRUST CLEARANCE MEASURING METHOD, AND MARINE VESSEL 审中-公开

    公开(公告)号：EP4316974A1

    公开(公告)日：2024-02-07

    申请号：EP22780495.2

    申请日：2022-03-24

    申请人： Japan Marine United Corporation

    发明人： SHIMIZU Masahiro ,  NAKAIE Masashi ,  NISHIYAMA Saiki

    IPC分类号： B63B79/10 ,  B63B81/00 ,  B63H5/10 ,  B63H23/32

    摘要： A marine contra-rotating propeller apparatus (100) comprises: an outer shaft (12) to which the front propeller (1) is attached, an inner shaft (14) to which a rear propeller (2) is attached, a contra-rotating thrust bearing (40) configured to transmit a thrust force acting on the front propeller to the inner shaft, and a contra-rotating gear device (20) configured to rotate the outer shaft and the inner shaft in directions opposite to each other. The contra-rotating gear device (20) has an inner shaft thrust bearing (50) configured to support a thrust force of the inner shaft and hold an axial position of the inner shaft. The thrust clearance measuring device (60) has: an inner shaft position sensor (62) configured to measure a forward-traveling-time inner-shaft position F1 and a backward-traveling-time inner-shaft position R1 in an axial direction during an operation of a marine vessel; and a thrust clearance calculation device (66) configured to calculate a first thrust clearance(C1) of the inner shaft thrust bearing.

    COUNTER ROTATING PROPELLER POD MECHANICAL ARRANGEMENT
    7.
    发明公开
    COUNTER ROTATING PROPELLER POD MECHANICAL ARRANGEMENT 审中-公开

    公开(公告)号：EP4227204A3

    公开(公告)日：2023-10-18

    申请号：EP23153036.1

    申请日：2023-01-24

    申请人： GE Energy Power Conversion France SAS

    发明人： JULLIAND, Lionel ,  GRALL, Theo ,  BITTERMANN, Mathieu ,  LEBOUEF, Nicolas ,  BAERD, Henri ,  JORDE, Jorgen

    IPC分类号： B63H5/10 ,  B63B17/00 ,  B63B81/00

    摘要： Provided is a pod propulsion system including first and second counter rotating propellers (318, 822) for propelling a marine vessel, and first and second propeller modules (404, 406), each including an electric motor (314, 316) having a driving-end configured to rotate the first and second propellers (318, 322), respectively. Also included are first and second gondolas (402, 408). Each gondola (402, 408) houses a respective one of the first and second electric motors (314, 316) and includes a boltable interface formed along a lengthwise direction of an extremity of the gondola. A strut (313) connects the first and second gondolas (402, 408) to a hull of the marine vessel and includes first and second boltable interfaces. Each of the boltable interfaces of the strut (313) is configured to form a bolted joint interface (410A, 410B) with a corresponding one of boltable interfaces of the first and second gondolas (402, 408).