Hydraulic system for a dual propeller marine propulsion unit
    2.
    发明授权
    Hydraulic system for a dual propeller marine propulsion unit 失效
    双螺旋桨船用推进装置的液压系统

    公开(公告)号:US6062926A

    公开(公告)日:2000-05-16

    申请号:US904072

    申请日:1997-07-31

    摘要: An improved hydraulic system for a twin propeller marine propulsion unit. A vertical drive shaft is operably connected to the engine of the propulsion unit and carries a pinion that drives a pair of coaxial bevel gears. An inner propeller shaft and an outer propeller shaft are mounted concentrically in the lower torpedo section of the gear case and each propeller shaft carries a propeller. To provide forward movement for the watercraft, a sliding clutch is moved in one direction to operably connect the first of the bevel gears with the inner propeller shaft to drive the rear propeller. A hydraulically operated multi-disc clutch is actuated when engine speed reaches a pre-selected elevated value to operably connect the second of the bevel gears to the outer propeller shaft, to thereby drive the second propeller in the opposite direction. The hydraulic system for actuating the multi-disc clutch includes a pump connected to the inner propeller shaft, and the pump has an inlet communicating with a fluid reservoir in the gear case and has an outlet which is connected through a hydraulic line to the multi-disc clutch. A strainer, a pressure regulator and a valve mechanism are disposed in the lower gear case and are located in series in the hydraulic line. At idle and slow operating speeds the valve is held by a solenoid in a position where the fluid is dumped to the reservoir, so that the pressure of the fluid being directed to the multi-disc clutch is insufficient to engage the clutch. At engine speeds above a preselected value, the solenoid is deenergized and the valve is then biased to a position where the fluid is delivered to the multi-disc clutch to engage the clutch and cause operation of the second propeller.

    摘要翻译: 用于双螺旋桨船用推进装置的改进的液压系统。 垂直驱动轴可操作地连接到推进单元的发动机并且承载驱动一对同轴锥齿轮的小齿轮。 内传动轴和外传动轴同心安装在齿轮箱的下鱼雷部分,每个传动轴承载螺旋桨。 为了为船舶提供向前的运动,滑动离合器在一个方向上移动以可操作地将第一锥齿轮与内螺旋桨轴连接以驱动后螺旋桨。 当发动机速度达到预先选择的升高值时,液压操作的多片离合器被致动,以将第二锥齿轮可操作地连接到外螺旋桨轴,从而沿相反方向驱动第二螺旋桨。 用于致动多片离合器的液压系统包括连接到内部传动轴的泵,并且泵具有与齿轮箱中的流体储存器连通的入口,并且具有通过液压管线连接到多叶片离合器的出口, 碟形离合器 过滤器,压力调节器和阀机构设置在下齿轮箱中并且串联在液压管路中。 在怠速和慢速运行的速度下,阀被螺线管保持在流体被倾倒到储存器的位置,使得被引导到多片离合器的流体的压力不足以接合离合器。 在高于预选值的发动机转速下,螺线管断电,然后阀被偏压到一个位置,在该位置,流体被输送到多片离合器以接合离合器并引起第二螺旋桨的操作。

    Skeg construction for a marine propulsion unit
    3.
    发明授权
    Skeg construction for a marine propulsion unit 失效
    Skeg建造船用推进装置

    公开(公告)号:US5772481A

    公开(公告)日:1998-06-30

    申请号:US718917

    申请日:1996-09-25

    摘要: A skeg assembly for a marine propulsion unit includes a generally U-shaped saddle that is removably attached to the lower torpedo section of the gearcase of the propulsion unit, and a thin wedge-shaped skeg extends downwardly from the saddle. During planing conditions of the boat, the water line is slightly below the lower torpedo section so that the saddle is out of the water. The side surfaces of the skeg having opposed water intake openings each of which is bordered rearwardly by a laterally projecting shoulder that terminates in a sharp vertical edge and the intake openings are bordered forwardly by a curved surface that connects the side surfaces of the skeg. The water intake openings communicate with a water passage in the skeg which, in turn, communicates with a water passage in the torpedo section so that water can be delivered to the cooling system of the propulsion unit.

    摘要翻译: 用于船用推进单元的s g组件包括大致U形的鞍座,其可移除地附接到推进单元的齿轮箱的下鱼雷部分,并且薄楔形s杆从鞍座向下延伸。 在船的刨光条件下,水线稍低于鱼雷部分,使得鞍座离开水面。 勺子的侧表面具有相对的进水口,每个侧面通过横向突出的肩部向后倾斜,该肩部终止于尖锐的垂直边缘,并且进气口通过连接勺子的侧表面的曲面向前方边界。 进水开口与鱼缸中的水通道连通,该水通道又与鱼雷部分中的水通道连通,从而水可以被输送到推进单元的冷却系统。

    Twin propeller marine propulsion unit
    4.
    发明授权
    Twin propeller marine propulsion unit 失效
    双螺旋桨船用推进单元

    公开(公告)号:US5766047A

    公开(公告)日:1998-06-16

    申请号:US719633

    申请日:1996-09-25

    摘要: A twin propeller marine propulsion unit for a watercraft. A vertical drive shaft operably connected to the engine is journaled for rotation in a lower gear case and carries a beveled pinion that drives a pair of coaxial bevel gears. An inner propeller shaft and an outer propeller shaft are mounted concentrically in the lower torpedo-shaped section of the gear case and each propeller shaft carries a propeller. To provide forward movement for the watercraft, a sliding clutch, is moved in one direction to operably connect a first of the bevel gears with the inner propeller shaft to thereby drive the rear propeller. When the engine speed reaches a pre-selected elevated value, a hydraulically operated multi-disc clutch is actuated to operably connect the second of the bevel gears to the outer propeller shaft, to thereby drive the second propeller in the opposite direction. With this construction only a single propeller is driven at low engine speeds and the second propeller is driven when the engine speed reaches the pre-selected value.

    摘要翻译: 用于船舶的双螺旋桨船用推进装置。 可操作地连接到发动机的垂直驱动轴被枢轴转动以在下齿轮箱中旋转并且承载驱动一对同轴锥齿轮的斜齿轮。 内螺旋桨轴和外推进器轴同心地安装在齿轮箱的下鱼雷形部分中,每个传动轴承载螺旋桨。 为了为船舶提供向前运动,滑动离合器沿一个方向移动,以可操作地连接第一锥齿轮与内螺旋桨轴,从而驱动后螺旋桨。 当发动机速度达到预先选择的升高值时,液压操作的多片离合器被致动以将第二锥齿轮可操作地连接到外推进器轴,从而沿相反方向驱动第二螺旋桨。 在这种结构下,只有单个螺旋桨以低发动机转速被驱动,而当发动机转速达到预先选定的值时,第二螺旋桨被驱动。

    High pressure and high lift pump impeller
    6.
    发明授权
    High pressure and high lift pump impeller 失效
    高压和高提升泵叶轮

    公开(公告)号:US4940402A

    公开(公告)日:1990-07-10

    申请号:US268749

    申请日:1988-11-08

    IPC分类号: F04C5/00

    CPC分类号: F04C5/00

    摘要: In a rotary vane positive displacement pump (28), the pump impeller (56) has weights (68-73) at the outer tips of the vanes (58-63) of greater mass per unit volume than the vanes and increasing outward centrifugal force urging engagement of the outer tips against the pump housing sidewall (44). In another embodiment, enlarged outer tips (86) of the vanes (82) are offset from the radial center-line (83) of the vane in a direction opposite the direction of rotation. In a further embodiment, a plurality of filler blades (91-96) are provided between respective vanes (101-106) and occupy space therebetween and displace volume in the pumping chamber (46). The filler blades have tapered leading edges (93a) accommodating flexure of the respective vane (103) during greatest flexure thereof. In further embodiments, the leading edges of the filler blades have a concave arcuate profile (128, 146) receiving in complementary relation enlarged outer tips (122, 138) of respective vanes upon flexure thereof.

    摘要翻译: 在旋转叶片正排量泵(28)中,泵叶轮(56)在叶片(58-63)的外端具有比叶片更大质量的重物(68-73),并且增加向外的离心力 促使外部尖端接合泵壳体侧壁(44)。 在另一个实施例中,叶片(82)的扩大的外部尖端(86)在与旋转方向相反的方向上偏离叶片的径向中心线(83)。 在又一实施例中,多个填料叶片(91-96)设置在相应的叶片(101-106)之间并占据它们之间的空间并且移动泵送室(46)中的体积。 填充刀片具有锥形前缘(93a),其在其最大弯曲期间容纳相应叶片(103)的挠曲。 在进一步的实施例中,填料刀片的前缘具有凹形弓形轮廓(128,146),其互补地接收相应叶片的挠曲时的相应叶片的增大的外部尖端(122,138)。

    Marine drive thread mounted pinion
    7.
    发明授权
    Marine drive thread mounted pinion 失效
    船用传动螺纹小齿轮

    公开(公告)号:US4560355A

    公开(公告)日:1985-12-24

    申请号:US566492

    申请日:1983-12-29

    摘要: Threaded pinion drive gear apparatus (2) for a marine drive lower gear case (4) includes a pinion gear (12) thread mounted at the bottom end of a vertical drive shaft (10) for driving rotatable driven gears (14 and 16) which drive a propeller shaft (6).

    摘要翻译: 用于船用驱动下齿轮箱(4)的螺纹小齿轮驱动齿轮装置(2)包括安装在垂直驱动轴(10)的底端处的用于驱动可旋转从动齿轮(14和16)的小齿轮(12) 驱动传动轴(6)。

    Marine propulsion unit with hydraulic pump
    8.
    发明授权
    Marine propulsion unit with hydraulic pump 失效
    带液压泵的船用推进装置

    公开(公告)号:US06176750B1

    公开(公告)日:2001-01-23

    申请号:US09379758

    申请日:1999-08-24

    IPC分类号: B63H2020

    摘要: An improved hydraulic system for a twin propeller marine propulsion unit. A vertical drive shaft is operably connected to the engine of the propulsion unit and carries a pinion that drives a pair of coaxial bevel gears. An inner propeller shaft and an outer propeller shaft are mounted concentrically in the lower torpedo section of the gear case and each propeller shaft carries a propeller. To provide forward movement for the watercraft, a sliding clutch is moved in one direction to operably connect the first of the bevel gears with the inner propeller shaft to drive the rear propeller. A hydraulically operated multi-disc clutch is actuated when engine speed reaches a pre-selected elevated value to operably connect the second of the bevel gears to the outer propeller shaft, to thereby drive the second propeller in the opposite direction. The hydraulic system for actuating the multi-disc clutch includes a pump connected to the inner propeller shaft, and the pump has an inlet communicating with a fluid reservoir in the gear case and has an outlet which is connected through a hydraulic line to the multi-disc clutch. A strainer, a pressure regulator and a valve mechanism are disposed in the lower gear case and are located in series in the hydraulic line. At idle and slow operating speeds the valve is held by a solenoid in a position where the fluid is dumped to the reservoir, so that the pressure of the fluid being directed to the multi-disc clutch is insufficient to engage the clutch. At engine speeds above a preselected value, the solenoid is deenergized and the valve is then biased to a position where the fluid is delivered to the multi-disc clutch to engage the clutch and cause operation of the second propeller.

    摘要翻译: 用于双螺旋桨船用推进装置的改进的液压系统。 垂直驱动轴可操作地连接到推进单元的发动机并且承载驱动一对同轴锥齿轮的小齿轮。 内传动轴和外传动轴同心安装在齿轮箱的下鱼雷部分,每个传动轴承载螺旋桨。 为了为船舶提供向前的运动,滑动离合器在一个方向上移动以可操作地将第一锥齿轮与内螺旋桨轴连接以驱动后螺旋桨。 当发动机速度达到预先选择的升高值时,液压操作的多片离合器被致动,以将第二锥齿轮可操作地连接到外螺旋桨轴,从而沿相反方向驱动第二螺旋桨。 用于致动多片离合器的液压系统包括连接到内部传动轴的泵,并且泵具有与齿轮箱中的流体储存器连通的入口,并且具有通过液压管线连接到多叶片离合器的出口, 碟形离合器 过滤器,压力调节器和阀机构设置在下齿轮箱中并且串联在液压管路中。 在怠速和慢速运行的速度下,阀被螺线管保持在流体被倾倒到储存器的位置,使得被引导到多片离合器的流体的压力不足以接合离合器。 在高于预选值的发动机转速下,螺线管断电,然后阀被偏压到一个位置,在该位置,流体被输送到多片离合器以接合离合器并引起第二螺旋桨的操作。

    Marine propulsion unit universal drive assembly
    9.
    发明授权
    Marine propulsion unit universal drive assembly 失效
    船用推进单元万能驱动总成

    公开(公告)号:US4897057A

    公开(公告)日:1990-01-30

    申请号:US228320

    申请日:1988-08-04

    摘要: A marine propulsion device is provided wherein a flexible bellows (33) surrounding the universal joint (20) disposed between a marine engine (5) and a stern drive unit (2) is mounted to rotate with the universal joint itself. The universal joint is disposed within a chamber (61) delineated by the bellows itself and by end caps (34,43) mounted to the universal joint shafts (25,30). Supports (53,56) for the universal joint bearings (54) are constructed to permit free flow of fluid around the bearings. A quantity of lubricating oil is supplied to the chamber and at least partially fills the chamber when the latter is at rest. Upon driving rotation of the device, the bellows and universal joint and lubricating oil all rotate together. The resultant centrifugal force causes the oil to flow radially outwardly through the bearing supports to lubricate the bearings, with the oil forming a rotating mass engaging the inner bellows face. To support the bellows against the rotating mass, a helical spring (69) is mounted externally of the bellows and within the bellows convolutions, with the spring being anchored (73) adjacent both ends of the bellows. In addition, the bellows function as a finned heat radiator.

    摘要翻译: 提供了一种船用推进装置,其中围绕设置在船用发动机(5)和船尾驱动单元(2)之间的万向接头(20)的柔性波纹管(33)安装成与万向接头本身一起旋转。 万向接头设置在由波纹管本身所描绘的腔室(61)内,以及安装到万向节轴(25,30)上的端盖(34,43)。 万向节轴承(54)的支撑(53,56)构造为允许流体在轴承周围自由流动。 一定量的润滑油被供应到腔室中,并且当腔室静止时至少部分地填充腔室。 在驱动装置的旋转时,波纹管和万向接头以及润滑油都一起旋转。 所产生的离心力导致油径向向外流过轴承座以润滑轴承,油形成旋转的质量接合内部波纹管面。 为了将波纹管支撑在旋转的质量块上,螺旋弹簧(69)安装在波纹管的外部并在波纹管圈内,弹簧在波纹管的两端附近锚固(73)。 另外,波纹管作为翅片式散热器。

    Nose construction for the gear case of a marine drive
    10.
    发明授权
    Nose construction for the gear case of a marine drive 失效
    用于船用驱动器齿轮箱的鼻子结构

    公开(公告)号:US4832635A

    公开(公告)日:1989-05-23

    申请号:US160631

    申请日:1988-02-26

    IPC分类号: F01P3/20 F02B61/04

    摘要: A marine drive unit (1) includes a lower propeller torpedo housing (9) of generally cylindrical configuration having a longitudinal centerline (19). A propeller shaft (17) is mounted in the housing for rotation on an axis (20) offset from the centerline. The shaft is journalled in a forward bearing assembly (18) which is held in place by a support (25) adjustably mounted to the housing and on the offset axis. A nose (30) is removably secured to the forward housing end by a mounting bolt (40) which extends into the support on the offset axis. A single multi-purpose opening or port (34) in the forward end of the nose communicates to an interior entry passage (35) in the nose. The entry passage in turn merges into a pair of passage branches (36,37). One branch (36) is disposed on the offset propeller shaft axis and receives the mounting bolt. The other branch (37) is positioned to communicate with the cooling water passages (21-23) in the lower unit, and which lead to the marine drive engine (4). A torque retention and sealing member (42) is disposed between the support and the nose. Furthermore, a torque retention and sealing member (44) is disposed between the bolt head and the inner end of its passage branch.

    摘要翻译: 船舶驱动单元(1)包括具有纵向中心线(19)的大致圆柱形构造的下螺旋桨鱼雷壳体(9)。 螺旋桨轴(17)安装在壳体中以在偏离中心线的轴线(20)上旋转。 轴被轴颈安装在前轴承组件(18)中,前轴承组件(18)通过可调节地安装到壳体和偏移轴上的支撑件(25)保持在适当位置。 鼻子(30)通过在偏移轴线上延伸到支撑件中的安装螺栓(40)可拆卸地固定到前壳体端部。 鼻子前端的单个多功能开口或端口(34)与鼻子内的入口通道(35)相通。 入口通道又合并成一对通道(36,37)。 一个分支(36)设置在偏置传动轴轴上并接收安装螺栓。 另一个分支(37)定位成与下部单元中的冷却水通道(21-23)连通,并且通向船用驱动发动机(4)。 扭矩保持和密封构件(42)设置在支撑件和鼻子之间。 此外,扭矩保持和密封构件(44)设置在螺栓头与其通道分支的内端之间。