Counter-rotating surfacing marine drive
    5.
    发明授权
    Counter-rotating surfacing marine drive 失效
    反向旋转浮雕船舶驱动

    公开(公告)号:US5230644A

    公开(公告)日:1993-07-27

    申请号:US889495

    申请日:1992-05-27

    摘要: A marine drive (10) has two counter-rotating surface operating propellers (12 and 14). An upper adaptor spool (48) has a lower threaded outer portion (50) mating with a threaded portion (46) of the vertical bore (26) of the drive housing (20) and supporting the upper gear (42) for rotation about the driveshaft (36) and supporting the driveshaft (36) for rotation within the adaptor spool (48). Vertical bore structure enables assembly from above of the majority of the vertical drive train components into a one-piece unitary integrally cast housing. The vertical distance between the adaptor spool (48) and the lower bearing (118) supporting the vertical driveshaft (36) is about equal to propeller radius. The lower concentric counter-rotating propeller shafts (156, 158) are spaced from the upper input shaft (28) by a distance along the driveshaft (36) in the range of about 9 to 15 inches.

    摘要翻译: 船用驱动器(10)具有两个反向旋转的表面操作螺旋桨(12和14)。 上部适配器卷轴(48)具有与驱动壳体(20)的垂直孔(26)的螺纹部分(46)配合并且支撑上部齿轮(42)的下螺纹外部部分(50),用于围绕 驱动轴(36)并且支撑驱动轴(36)以在适配器卷轴(48)内旋转。 垂直孔结构使得从大多数垂直传动系组件的上方组装成一体式整体铸造的壳体。 适配器卷轴(48)和支撑垂直驱动轴(36)的下轴承(118)之间的垂直距离约等于螺旋桨半径。 下同心的反向旋转推进器轴(156,158)与上输入轴(28)间隔大约9至15英寸的范围内的驱动轴(36)的距离。

    Marine drive having two counter-rotating surfacing propellers and dual
propeller shaft assembly
    7.
    发明授权
    Marine drive having two counter-rotating surfacing propellers and dual propeller shaft assembly 失效
    船用驱动器具有两个反向旋转的表面螺旋桨和双螺旋桨轴组件

    公开(公告)号:US5249995A

    公开(公告)日:1993-10-05

    申请号:US889530

    申请日:1992-05-27

    摘要: A marine drive (10) has two counter-rotating surface operating propellers (12, 14). Inner and outer concentric counter-rotating propeller shafts (40, 42) are supported by a spool assembly (38) locked and retained against rotation and against axial movement in the lower horizontal bore (28) in the torpedo (34) of the drive housing (26) by axially spaced left and right hand threads (44 and 46). A thrust bearing assembly (98) transfers thrust from the outer propeller shaft to the inner propeller shaft during rotation of the propeller shafts in opposite axial direction and is axially located between fore and aft driven gears (76 and 78). Propeller shaft sealing and bearing structure, and propeller self-centering mounting structure is provided.

    摘要翻译: 船用驱动器(10)具有两个反向旋转的表面操作螺旋桨(12,14)。 内部和外部同心的反向旋转传动轴(40,42)由卷轴组件(38)支撑,所述卷轴组件(38)被锁定并保持抵抗旋转并抵抗在驱动壳体的鱼雷(34)中的下水平孔(28)中的轴向运动 (26)通过轴向间隔开的左右螺纹(44和46)。 推力轴承组件(98)在螺旋桨轴在相反的轴向方向旋转期间将推进力从外螺旋桨轴传递到内传动轴,并且轴向位于前驱和后驱动齿轮(76和78)之间。 提供螺旋桨轴密封和轴承结构,以及螺旋桨自定心安装结构。

    Marine drive with surfacing torpedo
    9.
    发明授权
    Marine drive with surfacing torpedo 失效
    海上驾驶与表面鱼雷

    公开(公告)号:US5376031A

    公开(公告)日:1994-12-27

    申请号:US83280

    申请日:1993-06-25

    摘要: A marine drive (10) has two counter-rotating surface operating propellers (12 and 14). The lower horizontal torpedo portion (188) of the housing (20) has an upper zone (276) with outer surface profiles (11T-17T) along horizontal cross-sections defining wedges with sharp leading tips (11LT-17LT) forming a sharp leading edge (278) for slicing through the water, the sharp leading tips (11LT-17LT) defining the sharp leading edge (278) defining a first line extending downwardly and rearwardly at a first angle (280) relative to vertical. The torpedo portion (188) has a lower zone (270) with outer surface profiles (1B-10B) along horizontal cross-sections defining wedges with sharp leading tips (1LT-10LT) defining a second line (272) extending downwardly and rearwardly at a second angle (274) relative to vertical. The housing (20) includes a skeg (194) extending downwardly from the lower zone (270) of the torpedo portion (188 ), the skeg having a leading edge (288) defining a third line extending downwardly and rearwardly at a third angle (290) relative to vertical. The third angle (290) is greater than the first angle (280) and less than the second angle (274). The first, second and third lines (278, 272, 288) all intersect at the same point (284) which point is on the rotational axis (286) of the concentric counter-rotating propeller shafts (156, 158).

    摘要翻译: 船用驱动器(10)具有两个反向旋转的表面操作螺旋桨(12和14)。 壳体(20)的下水平鱼雷部分(188)具有沿着水平横截面的外表面轮廓(11T-17T)的上部区域(276),所述水平横截面限定楔形物,其尖锐的前端(11LT-17LT)形成尖锐的前缘 用于切割水的边缘(278),限定尖锐前缘(278)的尖锐前端(11LT-17LT)限定相对于垂直方向以第一角度(280)向下和向后延伸的第一线。 鱼雷部分(188)具有下部区域(270),其具有沿着水平横截面的外表面轮廓(1B-10B),其具有限定楔形的楔形物,其具有尖锐的前端(1LT-10LT),其限定了向下和向后延伸的第二线 相对于垂直方向的第二角度(274)。 壳体(20)包括从鱼雷部分(188)的下部区域(270)向下延伸的火腿(194),所述火腿具有限定以第三角度向下和向后延伸的第三线的前缘(288) 290)。 第三角度(290)大于第一角度(280)并且小于第二角度(274)。 第一,第二和第三线(278,272,288)都在相同点(284)处相交,该点位于同心的反向旋转推进器轴(156,158)的旋转轴线(286)上。