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    • 76. 发明授权
    • Propeller
    • 螺旋桨
    • US06406264B1
    • 2002-06-18
    • US09630325
    • 2000-07-26
    • Robert D. Paulus
    • Robert D. Paulus
    • F01D514
    • B63H1/16B63H1/26B63H1/28B63H3/00
    • A propeller that has curved vanes attached to the blade tips and to the blade body. The curved vanes at the blade tips act as a nozzle. However, because the “nozzle” is attached to the propeller blades, there is no need to modify the boat motor to accommodate it. In this design, the nozzle turns with the propeller. A full blade ring or guard can be formed and attached to the blades, if desired. This ring not only enhances the nozzle effect, it also protect people and items from getting drawn up into the blades of the propeller. This improves propeller safety as well. The propeller blades can have a number of different vane configurations. Moreover, there is a design that allows for variable pitch of the blades.
    • 具有附接到叶片尖端和叶片本体的弯曲叶片的螺旋桨。 叶片尖端处的弯曲叶片用作喷嘴。 然而,由于“喷嘴”附接到螺旋桨叶片,所以不需要修改船用马达来容纳它。 在这种设计中,喷嘴与螺旋桨一起转动。 如果需要,可以形成完整的叶片环或防护罩并附接到叶片。 这个环不仅增强了喷嘴效果,还保护了人们和物品不被拉入螺旋桨的叶片。 这也提高了螺旋桨的安全性。 螺旋桨叶片可以具有多个不同的叶片构造。 此外,存在允许叶片的可变间距的设计。
    • 77. 发明授权
    • Apparatus for indicating pitch angle of a propeller blade
    • 用于指示螺旋桨叶片俯仰角的装置
    • US06213713B1
    • 2001-04-10
    • US09224523
    • 1998-12-31
    • Carl A. Dickmann
    • Carl A. Dickmann
    • B64C1100
    • B63H3/00B63H2003/006
    • An apparatus for detecting the pitch angle of a propeller blade comprises a sensor and two transmitters. The transmitters are strategically located so as to identify a first fixed reference point on the propeller hub and a second movable point on the propeller blade. The sensor is mounted on a non-moving reference such as the engine housing. The sensor detects the time difference in signal arrival from each magnetic transmitter as they rotate on the propeller assembly and pass by the sensor. The fixed transmitter, although spinning with the propeller hub, does not move relative to the hub itself, and is mounted in a fixed position relative to the hub such as on the bulkhead plate. Each time the fixed transmitter passes by the sensor it generates a reference signal. The movable transmitter moves with the propeller blade as it rotates about the pitch axis thus changing the distance between the two transmitters. After the fixed sensor passes by the sensor, the movable transmitter passes by the sensor generating a second signal such that there is a measurable difference in the time of arrival between the two signals. The measurable difference is indicative of the blade pitch angle.
    • 用于检测螺旋桨叶片的俯仰角的装置包括传感器和两个发射器。 发射机位于战略位置,以便识别螺旋桨轮毂上的第一固定参考点和螺旋桨叶片上的第二可移动点。 传感器安装在非移动的基准上,如发动机外壳。 当传感器旋转在传感器上时,传感器检测每个磁性变送器的信号到达时间差。 固定式变速器尽管与螺旋桨轮毂一起旋转不会相对于轮毂本身移动,并且相对于轮毂如隔板板安装在固定位置。 每当固定式发射机经过传感器时,它将产生参考信号。 当螺旋桨叶片围绕俯仰轴旋转时,可移动发射器移动,从而改变两个发射器之间的距离。 在固定传感器经过传感器之后,可移动发射器通过传感器,产生第二信号,使得两个信号之间的到达时间存在可测量的差异。 可测量的差异表示叶片俯仰角。