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1. 发明申请

WO1992012895A1 AUTOMATIC VARIABLE DISCRETE PITCH MARINE PROPELLER 审中-公开
标题翻译：自动变速离合器海上螺旋桨
公开(公告)号：WO1992012895A1
公开(公告)日：1992-08-06
申请号：PCT/US1992000569
申请日：1992-01-23
申请人： NAUTICAL DEVELOPMENT, INC.
发明人： NAUTICAL DEVELOPMENT, INC. , SPEER, Stephen, R.
IPC分类号： B63H03/00
CPC分类号： B63H3/04 , B63H3/008
摘要： A self-actuating variable pich marine propeller which incorporates two or more blades (2) having cylindrical shafts (302) which are rotatably connected to a central hub (1) via cylindrical joints; the blades (2) rotate about and translate radially, relative to the hub center (Y), along the blade shaft (302), or shank axis. In operation, the blades (2) move radially outwardly from the hub center (Y) as they rotate from lower to higher pitch. The blades (2) are biased towards the lower pitch. As the propeller rotational speed increases, centrifugal forces act on the blade (2) mass creating a radially directed outward force. This radially outward force, upon reaching a sufficient magnitude, causes the blades (2) to move radially outward. A blade (2) positioning mechanism connected between each blade (2) and the hub (1) directs the blades (2) to rotate to a higher pitch angle as the blades (2) move radially outward. There is further provided a holding mechanism to retain, or hold, the blades (2) at least in one discrete pitch position; the holding mechanism is designed such that at a sharply defined combination of parameters, including rotational speed, and, optimally, hydrodynamic load on the blades (2), the blades (2) are released and permitted to move to a second pitch position.
摘要翻译：一种具有两个或更多个具有圆柱形轴（302）的叶片（2）的自动致动变速飞行器，其通过圆柱形接头可旋转地连接到中心毂（1）; 叶片（2）沿着叶片轴（302）或柄轴线相对于轮毂中心（Y）绕径向旋转。在操作中，当叶片（2）从低到高的间距旋转时，叶片（2）从轮毂中心（Y）径向向外移动。叶片（2）朝向下部螺距偏置。当螺旋桨旋转速度增加时，离心力作用在叶片（2）上，形成径向向外的力。当径向向外的力达到足够的量值时，叶片（2）将径向向外移动。连接在每个叶片（2）和轮毂（1）之间的叶片（2）定位机构引导叶片（2）随着叶片（2）径向向外移动而旋转到更高的俯仰角。还设置有用于至少在一个离散的音调位置保持或保持所述叶片（2）的保持机构; 保持机构被设计成使得在明确的参数组合（包括转速）以及最佳地在叶片（2）上的流体动力学负载的情况下，叶片（2）被释放并被允许移动到第二俯仰位置。

2. 发明申请

WO1992019493A1 DAMPED AUTOMATIC VARIABLE PITCH MARINE PROPELLER 审中-公开
标题翻译：阻尼自动可变式海洋螺旋桨
公开(公告)号：WO1992019493A1
公开(公告)日：1992-11-12
申请号：PCT/US1992003418
申请日：1992-04-27
申请人： NAUTICAL DEVELOPMENT, INC.
发明人： NAUTICAL DEVELOPMENT, INC. , SPEER, Stephen, R.
IPC分类号： B63H01/06
CPC分类号： B63H3/04 , B63H3/008
摘要： There is provided a self-actuating variable pitch marine propeller which incorporates two or more blades (20), each independently rotatable, relative to the propeller hub (10), between a first lower and a second higher pitch. The blades (20) are preferably mechanically linked by coordinating means (25) and are caused to move preferably by a combination of centrifugal force effect resulting from inertial mass means and the hydrodynamic forces acting upon the blade hydrodynamic surface. The rotation of the blades (20) relative to the propeller hub (10) is limited primarily as to speed of rotation by restricted viscous fluid flow damping means (3000) operably connected to the blades (20). In one preferred embodiment, the viscous flow means (3000) further acts as an initial restraint against all motion by closing off the viscous flow orifice (430) until a certain minimum propeller rotational speed is achieved.
摘要翻译：提供了一种自致动可变螺距船用螺旋桨，其包括两个或更多个叶片（20），每个叶片（20）可相对于螺旋桨轮毂（10）独立地在第一下部和第二较高间距之间旋转。叶片（20）优选地通过协调装置（25）机械连接，并且优选地通过由惯性质量装置产生的离心力作用和作用在叶片流体动力表面上的流体动力的组合移动。叶片（20）相对于螺旋桨轮毂（10）的旋转主要受到可操作地连接到叶片（20）的限制粘性流体流动阻尼装置（3000）的旋转速度的限制。在一个优选实施例中，粘性流动装置（3000）还通过关闭粘性流动孔口（430）作为抵抗所有运动的初始约束，直到达到某一最小推进器转速。

3. 发明申请

WO1990000492A1 AUTOMATIC VARIABLE PITCH MARINE PROPELLER 审中-公开
标题翻译：自动变速海洋螺旋桨
公开(公告)号：WO1990000492A1
公开(公告)日：1990-01-25
申请号：PCT/US1989002937
申请日：1989-07-06
申请人： NAUTICAL DEVELOPMENT INC.
发明人： NAUTICAL DEVELOPMENT INC. , SPEER, Stephen, R.
IPC分类号： B63H03/00
CPC分类号： B63H3/04 , B63H3/008
摘要： There is provided a self-actuating, variable pitch propeller (13) having a plurality of blades (47). All of the blades (47) are automatically movable between a first, relatively lower pitch position and a second, relatively higher pitch position, substantially simultaneously and equally in response to achieving a predetermined combination of propeller rotational speed and hydrodynamic loading on the propeller blades (47). The blades (47) are releasably locked to prevent pivoting of the blades (47), at least in the lower pitch position, but preferably can be locked in both the high and low pitch positions. More preferably, a feedback force is transmitted from the blade to the locking means (112) to vary the locking force in response to the net turning moment on the blade (47). The locking means (112) are released in response to the combined effects of centrifugal force generated by the blades (47) and other portions of the propeller and the hydrodynamic loading on the blades.

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