Differential pressure sensing valve
    2.
    发明授权
    Differential pressure sensing valve 失效
    差压传感阀

    公开(公告)号:US3812874A

    公开(公告)日:1974-05-28

    申请号:US30757472

    申请日:1972-11-17

    发明人: TAKAGI M

    IPC分类号: B63H21/30 F01D17/26 G05D16/06

    摘要: A control valve device especially adapted for the control of a marine engine so as to bypass a critical region of its speed range in which a resonant frequency vibration is encountered. The control valve comprises a differential piston abutment the stem of which cooperates with valve means to control the fluid pressure communication between either a first or second inlet and an outlet which controls the throttle of said engine. Detent means provides a latching force in either of two extreme positions to prevent actuation of the piston abutment in response to a variable speed control signal until the speed control signal reaches a value sufficient to overcome the latching force of the detent means, which latching force corresponds to the upper limit of the critical speed range. In one extreme position of the piston abutment, the valve means is effective to pressurize the outlet in accordance with the output of a regulating valve adjusted to limit the speed control signal to a value corresponding to the lower limit of the critical speed range, while in the other extreme position, the valve means is effective to pressurize the outlet in accordance with the speed control signal. The detent means may be employed either alone or in conjunction with a second regulating valve, the output of which biases the piston abutment in opposition to the speed control signal, to establish the upper limit of the critical speed range.

    摘要翻译: 一种特别适用于控制船用发动机以便绕过其遇到谐振频率振动的速度范围的关键区域的控制阀装置。 控制阀包括一个差速活塞支座,阀杆与阀装置配合,以控制控制所述发动机节气门的第一或第二入口与出口之间的流体压力连通。 止动装置在两个极限位置中的任一个位置提供锁定力,以防止响应于可变速度控制信号致动活塞抵接,直到速度控制信号达到足以克服止动装置的锁定力的值 达到临界转速范围的上限。 在活塞支座的一个极限位置,阀装置有效地根据调节阀的输出对出口加压,该调节阀被调节以将速度控制信号限制到对应于临界转速范围的下限的值,而在 另一个极端位置,阀装置根据速度控制信号有效地对出口加压。 制动装置可以单独使用或与第二调节阀结合使用,第二调节阀的输出偏置活塞抵接件与速度控制信号相对,以建立临界转速范围的上限。

    Damping arrangements
    3.
    发明授权
    Damping arrangements 失效
    减震装置

    公开(公告)号:US3635182A

    公开(公告)日:1972-01-18

    申请号:US3635182D

    申请日:1969-12-09

    申请人: NAT RES DEV

    CPC分类号: B63B39/005 B63H21/302

    摘要: A method of damping vibrations in the hull of a floating vessel by transferring vibrational energy from the hull to a liquid-gas system within the hull, the vibrational energy being absorbed within the system by compression and expansion of the gas by the liquid and finally dissipated by friction in the liquid-gas system. Assemblies are disclosed for damping vertical, transverse or torsional vibrations in the hull.

    摘要翻译: 通过将船体中的振动能量转移到船体内的液体气体系统来减轻浮体的船体中的振动的方法,通过液体压缩和膨胀气体并最终消散的振动能量被吸收在系统内 通过液体气体系统中的摩擦。 公开了用于阻止船体中的垂直,横向或扭转振动的组件。

    Systems and methods for controlling trim position of a marine propulsion device on a marine vessel

    公开(公告)号:US09944375B1

    公开(公告)日:2018-04-17

    申请号:US14729885

    申请日:2015-06-03

    摘要: A system for controlling trim position of a marine propulsion device on a marine vessel includes a trim actuator having a first end configured to couple to the marine propulsion device and a second end configured to couple to the marine vessel. A controller controls position of the trim actuator between an extended position wherein the propulsion device is trimmed up with respect to the vessel and a retracted position wherein the propulsion device is trimmed down with respect to the vessel. A shock relief mechanism overrides position control by the controller and allows extension of the trim actuator upon the occurrence of an overpressure event. An arresting mechanism, when activated, prevents extension of the trim actuator beyond a certain limit. The controller selectively activates the arresting mechanism in response to a determination that the propulsion device is being commanded in reverse. Methods for controlling trim position are also included.

    Apparatus for reducing vibration on a ship
    5.
    发明授权
    Apparatus for reducing vibration on a ship 失效
    用于减少船上振动的装置

    公开(公告)号:US06190217B1

    公开(公告)日:2001-02-20

    申请号:US09292338

    申请日:1999-04-15

    IPC分类号: B63H2121

    CPC分类号: B63H21/302 F16F15/02

    摘要: An apparatus for reducing vibration on a ship with at least two drive shafts by determining and utilizing an optimum angular offset which corresponds to a minimum vibration level. The apparatus comprises a servo-control circuit for servo-controlling the angular difference between the two shafts to a reference value. A calibration circuit determines the optimum angular offset between the shafts corresponding to the minimum vibration level. A control circuit responds to a control signal by actuating in succession the calibration circuit and then the servo-control circuit, wherein the optimum angular offset is set to the reference value.

    摘要翻译: 一种用于通过确定和利用对应于最小振动水平的最佳角度偏移来减少具有至少两个驱动轴的船舶上的振动的装置。 该装置包括用于伺服控制两个轴之间的角度差的伺服控制电路作为参考值。 校准电路确定对应于最小振动水平的轴之间的最佳角度偏移。 控制电路通过连续执行校准电路然后伺服控制电路来响应控制信号,其中最佳角度偏移被设置为参考值。

    Ship's hull vibration damper
    6.
    发明授权
    Ship's hull vibration damper 失效
    船体振动阻尼器

    公开(公告)号:US5586512A

    公开(公告)日:1996-12-24

    申请号:US232182

    申请日:1994-05-03

    申请人: Finn Orbeck

    发明人: Finn Orbeck

    摘要: There is described an apparatus for inclusion in a ship comprising a mass (10), that is vibrationally coupled to the ship's hull (12) such that movement of the mass is dampened. The mass (10) is so sized and located as to, when in use it reduces the fundamental and/or harmonics of a transverse two node mode of wave-induced vibration in the ship's hull (12). There is also described an apparatus for inclusion in a ship comprising a mass (10) made up in part of the tackle or fitments of the ship, which also are vibrationally coupled to the ship's hull (12) by a damping such that movement of the mass (10) is dampened so as to thereby, when in use, reduce vibrations in the ship's hull (12). In a preferred embodiment the mass (10) is at least in part a chain locker and that portion of the chain stored therein. By reducing vibrations in the ship's hull (12) significant stresses may be relieved and the performance of the ship enhanced. A ship incorporating the apparatus and a method of reducing vibrations in a ship's hull are also described.

    摘要翻译: PCT No.PCT / GB92 / 02053 Sec。 371日期:1994年5月3日 102(e)日期1994年5月3日PCT提交1992年11月6日PCT公布。 第WO93 / 09025号公报 日期:1993年5月13日描述了一种用于包括在船中的装置,其包括质量(10),其被振动地联接到船体(12),使得物体的移动被抑制。 质量(10)的尺寸和尺寸如此大,当使用时它降低了船体(12)中波浪振动的横向两节点模式的基波和/或谐波。 还描述了一种用于包括在船中的装置,其包括由部分滑车或船的配件构成的质量块(10),其也通过阻尼振动地联接到船体(12),使得运动 质量(10)被润湿,从而在使用时减少船体(12)中的振动。 在一个优选实施例中,质量块(10)至少部分地是锁链器,并且其中存储有链的部分。 通过减少船体的振动(12),可以减轻重大压力,提高船舶的性能。 还描述了结合该装置的船舶和减少船体中的振动的方法。

    Power transmitting system of small boat
    7.
    发明授权
    Power transmitting system of small boat 失效
    小船动力传动系统

    公开(公告)号:US5282444A

    公开(公告)日:1994-02-01

    申请号:US12973

    申请日:1993-02-02

    摘要: The invention provides a power transmitting system for a small boat, such as a water jet propulsion craft, and more particularly, an improved arrangement for connecting an engine output shaft to a propulsion unit input shaft. Also provided is an arrangement for balancing an engine within the craft against undesirable operational forces tending to render the craft unstable. The connecting assembly includes a coupling arrangement utilizing elastomeric vibration dampening members. One of the dampening members possesses a high degree of elasticity, while another of the dampening members possesses a low degree of elasticity. A durable, yet efficient vibration dampening coupling arrangement, which is additionally able to act as a universal joint, is thereby achieved. The engine balancing arrangement includes a flywheel which rotates in response to the crankshaft assembly of the engine. The flywheel is weighted, and rotates in a direction opposite to that of the crankshaft assembly, so that a rotational momentum is achieved by the flywheel to offset undesirable rotational forces created by the crankshaft assembly

    摘要翻译: 本发明提供了一种用于小船的动力传递系统,例如喷水推进工艺,更具体地,涉及将发动机输出轴连接到推进单元输入轴的改进布置。 还提供了一种用于平衡工艺中的发动机的装置,以防止倾向于使工艺不稳定的不期望的操作力。 连接组件包括利用弹性体减震构件的联接装置。 阻尼构件中的一个具有高度的弹性,而另一个阻尼构件具有低的弹性。 由此实现了另外能够作为万向节的耐用且有效的减振联接装置。 发动机平衡装置包括响应于发动机的曲轴组件而旋转的飞轮。 飞轮被称重,并且沿与曲轴组件的方向相反的方向旋转,使得飞轮实现旋转动量以抵消由曲轴组件产生的不期望的旋转力

    Damping of vibrations
    8.
    发明授权
    Damping of vibrations 有权
    振动阻尼

    公开(公告)号:US07222704B2

    公开(公告)日:2007-05-29

    申请号:US10502589

    申请日:2003-01-24

    IPC分类号: F16F7/10

    摘要: A selective damping apparatus includes at least one sensor for detecting, and producing signals indicative of at least the frequency and amplitude of vibrations of a first structural component (a “resonant structure”) having one or more resonant frequencies. At least one vibration generator is provided for generating damping vibrations for application to the resonant structure, as well as a controller for controlling the operation of the vibration generator in delayed response to the signals produced by the at least one sensor. The at least one sensor and at least one vibration generator are adapted to cooperate with a second structural component (a “non-resonant structure”) that is relatively insensitive to the resonant frequencies of the resonant structure. The nonresonant structure is connected or coupled to the resonant structure either directly or indirectly, via one or more intermediate structural components.

    摘要翻译: 选择性阻尼装置包括至少一个传感器,用于检测并产生指示具有一个或多个谐振频率的第一结构部件(“谐振结构”)的至少振动频率和振幅的信号。 提供至少一个振动发生器用于产生用于施加到谐振结构的阻尼振动,以及控制器,用于以对至少一个传感器产生的信号的延迟响应来控制振动发生器的操作。 所述至少一个传感器和至少一个振动发生器适于与对谐振结构的谐振频率相对不敏感的第二结构部件(“非谐振结构”)配合。 非共振结构通过一个或多个中间结构部件直接或间接地连接或耦合到谐振结构。

    Outboard motor steering system
    9.
    发明申请
    Outboard motor steering system 有权
    舷外马达转向系统

    公开(公告)号:US20040162649A1

    公开(公告)日:2004-08-19

    申请号:US10779750

    申请日:2004-02-18

    IPC分类号: G06F017/00

    摘要: In an outboard motor steering system for an outboard motor mounted on a stern of a boat and including an outboard motor main unit having an internal combustion engine and a propeller with a rudder powered by the engine to propel and steer the boat and mounted on the stern of the boat through a mounting unit having a swivel shaft connected to the propeller to turn the propeller, and a swivel case rotatably accommodating the swivel shaft, a vibration attenuator is installed at a portion connecting the outboard motor main unit and the mounting unit and attenuating vibration of the outboard motor main unit to be transmitted to the mounting unit by causing the outboard motor main unit to displace relative to the mounting unit. In the system, displacement absorbers (such as rubber members, springs and gaps) are installed at a portion connecting one of a main body and an output end of a steering actuator to the outboard motor main unit and another portion connecting the other of the main body and the output end to the mounting unit. With this, even when the vibration attenuator is thus installed, it can improve the degree of freedom of installing position of the actuator.

    摘要翻译: 在用于安装在船尾的舷外马达的舷外马达转向系统中,并且包括具有内燃机和舵机的舷外马达主机,所述舷外马达主机具有由发动机驱动并推动船并安装在船尾上的舵 通过具有连接到螺旋桨的旋转轴以旋转螺旋桨的安装单元和可旋转地容纳旋转轴的旋转壳体,在连接舷外马达主单元和安装单元的部分处设置有振动衰减器,并且衰减 舷外马达主机通过使舷外马达主机相对于安装单元移位而传递到安装单元的振动。 在该系统中,位移吸收器(例如橡胶构件,弹簧和间隙)安装在将转向致动器的主体和输出端中的一个连接到舷外马达主单元的部分上,另一部分连接主体 主体和输出端连接到安装单元。 由此,即使在安装振动衰减器的情况下,也能够提高致动器的安装位置的自由度。

    Noise reducing system
    10.
    发明授权
    Noise reducing system 有权
    降噪系统

    公开(公告)号:US06419533B2

    公开(公告)日:2002-07-16

    申请号:US09977952

    申请日:2001-10-17

    申请人: Gaétan Lecours

    发明人: Gaétan Lecours

    IPC分类号: B63H1100

    摘要: A noise reducing system for a personal watercraft. The system includes a pump insulating system which insulates the pump housing from the hull. More particularly, the pump insulating system includes at least one insulating attachment for connecting a pump housing to a supporting surface of a personal watercraft. Such insulating attachment includes an insulator having a portion mounted between the pump housing and the supporting surface. Advantageously, the system also includes a resonator and a shield, both mounted on the exhaust system, and an insulating material mounted inside an air intake pipe.

    摘要翻译: 一种用于个人船只的降噪系统。 该系统包括泵壳绝缘系统,其将泵壳体与船体隔离。 更具体地,泵绝缘系统包括用于将泵壳体连接到个人船舶的支撑表面的至少一个绝缘附件。 这种绝缘附件包括具有安装在泵壳体和支撑表面之间的部分的绝缘体。 有利地,系统还包括安装在排气系统上的谐振器和屏蔽件,以及安装在进气管内的绝缘材料。