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    • 36. 发明公开
    • Hydraulischer Verstellpropeller
    • Hydraulischer Verstell Propeller
    • EP2444316A1
    • 2012-04-25
    • EP10013942.7
    • 2010-10-25
    • MT-Propeller Entwicklung GmbH
    • Mühlbauer, Gerd
    • B64C11/42
    • B64C11/42
    • Es wird ein redundanter hydraulischer Verstellpropeller für ein Luft-, Land- oder Wasserfahrzeug vorgeschlagen, mit mindestens zwei Propellerblättern (14), die im Bereich einer Propellernabe (12) gelagert sind und hinsichtlich ihres Anstellwinkels mittels einer hydraulisch angetriebenen Kolbeneinheit (18) verstellbar sind. Erfindungsgemäß umfasst die Kolbeneinheit (18) zwei mechanisch miteinander verbundene Verstellkolben (20,22), die jeweils einem unabhängigen Hydraulikkreis zugeordnet sind. Die Verstellkolben sind jeweils als doppelt wirkender Kolben ausgebildet.
    • 螺旋桨(10)具有安装在由液压动力活塞组件(18)控制的可变桨距的螺旋桨毂(12)的区域中的两个螺旋桨叶片(14)。 活塞组件包括两个机械互连的伺服活塞(20,22),其中每个伺服活塞附接到独立的液压回路并形成为双作用活塞。 液压回路包括阀单元,并且伺服活塞通过阀单元以期望的伺服压力同步致动。 伺服活塞和阀单元通过控制管(36)相互连接。
    • 38. 发明公开
    • Torque compensation for propeller pitch change mechanism
    • Verstellpropelleranordnung mit Drehmomentausgleich和Verfahren
    • EP2343239A2
    • 2011-07-13
    • EP11250021.0
    • 2011-01-11
    • Hamilton Sundstrand Corporation
    • Perkinson, Robert H.
    • B64C11/42
    • B64C11/32B64C11/44
    • A propeller assembly (20) has a plurality of propeller blades (26), and a pitch change mechanism including at least one motor (48). A drive input (32) drives the plurality of propeller blades to rotate about a central drive axis (Y). The pitch change mechanism is operable upon driving of the motor to move the propeller blades about the drive axis relative to the drive input. The drive input includes a drive input gear transmission (62,68,56) to change a pitch angle of the blades when the blades are moved relative to the drive input by the pitch change mechanism. Further, a method of operating a propeller assembly to change a pitch angle is disclosed and claimed.
    • 螺旋桨组件(20)具有多个螺旋桨叶片(26)和包括至少一个马达(48)的桨距改变机构。 驱动输入(32)驱动多个螺旋桨叶片围绕中心驱动轴线(Y)旋转。 变桨机构在驱动电动机时可操作,以使驱动轴相对于驱动输入端移动螺旋桨叶片。 驱动输入包括驱动输入齿轮传动装置(62,68,56),用于当叶片相对于桨距变化机构相对于驱动输入运动时改变叶片的俯仰角。 此外,公开并要求保护一种操作螺旋桨组件以改变桨距角的方法。
    • 39. 发明公开
    • VARIABLE PITCH MARINE PROPELLER
    • 变桨距船只
    • EP1021333A1
    • 2000-07-26
    • EP98953374.0
    • 1998-10-09
    • ELLIOTT, Morris C.
    • ELLIOTT, Morris C.
    • B63H3/08B64C11/42
    • B63H3/08
    • A modular variable-pitch marine propeller system (10) has a propeller unit (16) for mounting on a drive shaft (20), and a power unit (14) including a stationary annular hydraulic cylinder (32) for operating the propeller unit, a hydraulic remote control unit (18) being fluid-coupled to the power unit. An annular piston (34) of the hydraulic cylinder is coupled to a ring-shaped actuator yoke (40) by a roller thrust bearing (44), the actuator yoke axially displacing a ring-shaped rack member (70) of the propeller unit (16) with which the actuator yoke (40) is allowed to rotate. The ring-shaped rack member (70) carries a plurality of rack sections (72) by which it engages the pinions (66) mounted on the stem portions (68) of each blade member (64). The piston (34) operates in a sealed environment for the exclusion of water from the separately sealed surfaces of the cylinder itself. In one configuration, the propeller unit is replaceable without disturbing the sealed environment of the annular piston. The control unit includes a hydraulic control cylinder (90) that is operated by a rotatably mounted barrel (96) that engages a threaded piston rod (94). Alternatively, the control cylinder is actuated by a lever (120) having biasing springs (128) and an adjustable brake (136).