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公开(公告)号：US5307630A
公开(公告)日：1994-05-03
申请号：US808422
申请日：1991-12-16
CPC分类号： F15B13/0417 , B64C13/38
摘要： Paper drive unit instability that includes a variable displacement hydraulic motor (34), a rotary output (48), and a displacement controlling wobbler (36, 40) in the case of an aiding load can be avoided through the use of a double acting hydraulic actuator (42, 44) connected to the wobbler (36, 40) along with a control valve (30) including a single spool (80) connected to the motor (34), and wobbler control pilot valve (62) and to the actuator (42, 44) for a) controlling the speed and direction of rotation of the motor output (48); and b) controlling the actuator (42, 44) to maintain minimum displacement of the motor 34 when an aiding load occurs. System optimization can be achieved by changing the differential pressure setting in response to the available system pressure.
摘要翻译： 在辅助负载的情况下，包括可变排量液压马达（34），旋转输出（48）和排量控制摆动器（36,40）的纸张驱动单元不稳定性可以通过使用双作用液压 连接到摆动器（36,40）的致动器（42,44）以及包括连接到马达（34）的单个线轴（80）的控制阀（30）以及摆动控制先导阀（62）和致动器 （42,44），用于a）控制所述马达输出（48）的转速和转动方向; 以及b）当发生辅助负载时，控制所述致动器（42,44）以维持所述电动机34的最小位移。 可以通过根据可用的系统压力改变压差设定来实现系统优化。
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公开(公告)号：US4779822A
公开(公告)日：1988-10-25
申请号：US866366
申请日：1986-05-23
摘要： In order to protect an actuator system for a movable surface in a reliable manner, while also protecting the movable surface in the event of a system failure, the actuator system includes a power drive unit connected to one end of an input shaft. An actuator is disposed on the input shaft having multiple output stages normally driven by the power drive unit through the input shaft with the mutiple output stages being operatively associated with the movable surface for driving movement thereof. In order to provide dual load path shafting together with incorporating fail safe actuator construction, the actuator system also includes a feedback shaft extending from the actuator to the power drive unit and a torque sensor operatively associated with the feedback shaft.
摘要翻译： 为了以可靠的方式保护用于可移动表面的致动器系统，同时在系统故障的情况下还保护可移动表面，致动器系统包括连接到输入轴的一端的动力驱动单元。 致动器设置在输入轴上，其具有通常由动力驱动单元通过输入轴驱动的多个输出级，多个输出级可操作地与可移动表面相关联，用于驱动其运动。 为了提供双负载路径轴系并结合故障安全致动器构造，致动器系统还包括从致动器延伸到动力驱动单元的反馈轴和与反馈轴可操作地相关联的扭矩传感器。
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公开(公告)号：US4760964A
公开(公告)日：1988-08-02
申请号：US925418
申请日：1986-10-31
申请人： Wesley A. Burandt
发明人： Wesley A. Burandt
CPC分类号： F02K1/12 , B64C13/34 , F02K1/1207 , Y02T50/44 , Y02T50/671
摘要： In order to enhance performance of an aircraft while at the same time utilizing redundant aircraft hydraulic power in an efficient manner, an actuator system for a nozzle flap of an aircraft engine is provided. The actuator system includes a power drive unit in operatively associated relation with drive transmitting gearing at a single location together with an actuator driven by the power drive unit through the drive transmitting gearing, and the actuator includes output drive gearing operatively associated with the nozzle flap for driving the nozzle flap at spaced apart locations. With this arrangement, the nozzle flap is driven at spaced apart locations by the power drive unit from a single location through the actuator to permit downsizing of components with consequent weight reduction to achieve enhanced performance.
摘要翻译： 为了提高飞行器的性能，同时以有效的方式利用冗余的飞行器液压动力，提供了一种用于飞机发动机的喷嘴翼片的致动器系统。 致动器系统包括动力驱动单元，其与单个位置处的驱动传动齿轮与由驱动传动装置驱动的致动器一起可操作地相关联，并且致动器包括与喷嘴挡板可操作地相关联的输出驱动齿轮，用于 在间隔开的位置驱动喷嘴挡板。 通过这种布置，喷嘴挡板由间隔开的位置通过动力驱动单元从单个位置通过致动器驱动，以允许组件的小型化，从而减轻重量，从而实现增强的性能。
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公开(公告)号：US4631000A
公开(公告)日：1986-12-23
申请号：US631981
申请日：1984-07-16
申请人： Wesley A. Burandt
发明人： Wesley A. Burandt
CPC分类号： F04B1/324 , F04B49/002
摘要： A hydraulic pressure intensifier for boosting normal system pressure in a hydraulic system to a higher level in order to increase the force provided by a pressure-operated actuator. The hydraulic pressure intensifier has a motor-pump unit with a rotatable cylinder block with cylinders defining piston chambers and each having a movable piston therein. A wobbler controls the stroke of the pistons and the motor-pump unit functions as both a pump and a motor by means of porting to said cylinders including a supply pressure port, an intensified pressure port and a return pressure port. The motor-pump unit has normal maximum and minimum speed limits and when operating at different flow rates the speed thereof varies accordingly. In order to maintain the speed of the motor-pump unit within normal limits, the wobbler is adjustable to vary the stroke of the pistons and thereby vary the speed of rotation of the cylinder block for the same rate of fluid flow. The wobbler can be infinitely variable between limit positions or only between limit positions and the adjustment can be made automatically in response to a speed-responsive flyweight governor-controlled valve structure.
摘要翻译： 一种液压增压器，用于将液压系统中的正常系统压力提升到更高的水平，以增加由压力驱动的致动器提供的力。 液压增压器具有电机泵单元，其具有可旋转的气缸体，其具有限定活塞室的气缸，并且每个活塞具有可移动的活塞。 摆动器控制活塞的行程，并且电动泵单元通过移动到所述气缸的功能，作为泵和电动机，其功能包括供给压力端口，增压压力端口和回流压力端口。 电机泵单元具有正常的最大和最小速度限制，并且当在不同流量下操作时，其速度相应地变化。 为了将电动泵单元的速度保持在正常范围内，摇摆器可调节以改变活塞的冲程，从而以相同的流体流速来改变气缸体的旋转速度。 摇摆器可以在极限位置之间无限变化，或仅在极限位置之间可以无级变化，并且可以响应于速度响应型的飞轮调速器控制阀结构而自动进行调节。
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公开(公告)号：US4487109A
公开(公告)日：1984-12-11
申请号：US363701
申请日：1982-03-30
CPC分类号： F04B1/324 , F04B2201/12051 , Y10S60/911
摘要： The invention relates to an electro-hydraulic control system for a power drive unit having a wobbler controlled variable displacement hydraulic motor wherein the electro-hydraulic control system causes the displacement of the hydraulic motor to match a load to be driven by a power drive unit output shaft coupled to the motor. The system results in the hydraulic motor displacement matching the load as a combined function of the input command signal, the actual wobbler position, as well as the velocity and position of the power drive unit output shaft.
摘要翻译： 本发明涉及一种具有摇摆控制的可变排量液压马达的动力驱动单元的电动液压控制系统，其中电液控制系统使得液压马达的位移与由驱动单元输出驱动的负载相匹配 轴连接到电机。 该系统导致液压马达与负载匹配的位移作为输入指令信号，实际摆臂位置以及动力单元输出轴的速度和位置的组合函数。
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公开(公告)号：US4915016A
公开(公告)日：1990-04-10
申请号：US179025
申请日：1988-04-07
申请人： Wesley A. Burandt
发明人： Wesley A. Burandt
IPC分类号： F01B13/04
CPC分类号： F01B13/04
摘要： A hydromechanical control system for a power drive unit having a hydraulic motor of the axial piston type, including a wobbler to vary the axial displacement of the pistons of the motor. A cylinder block is coupled to a shaft for rotation therewith. The cylinder block defines a plurality reciprocally movable therein. A port plate is provided at one end of the cylinder block, with kidney-shaped ports concentric with the axis of rotation of the cylinder block, in alignment with the cylinders and in communication with fluid supply and return conduits. A solenoid-operated piston-cylinder device rotatably adjusts the position of the port plate to adjust the positions of the ports relative to the incline plane of the wobbler.
摘要翻译： 一种用于具有轴向活塞型液压马达的动力驱动单元的液压机械控制系统，包括用于改变马达的活塞的轴向位移的摆动轴。 气缸体联接到轴上以与其一起旋转。 气缸体在其中限定可往复运动的多个。 端口板设置在气缸体的一端，其中肾形端口与气缸体的旋转轴线同心，与气缸对准并与流体供应和返回管道连通。 螺线管操作的活塞缸装置可旋转地调节端口板的位置以调节端口相对于摆动器的倾斜平面的位置。
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公开(公告)号：US4721016A
公开(公告)日：1988-01-26
申请号：US633871
申请日：1984-07-23
申请人： Wesley A. Burandt
发明人： Wesley A. Burandt
CPC分类号： B64C13/34 , F16H1/46 , F16H2001/2881
摘要： A multiple-stage geared rotary actuator having a plurality of balanced compound differentials providing a multiple-stage output and for converting a high-speed, low-torque input to a low-speed, high-torque output for moving a member, such as an aircraft flight control surface. The balanced compound planetary differentials each have a plurality of planet gear shafts with a center gear and outer gears at opposite sides of the center gear and with the tubular planet gear shafts of the planetary differentials being in axial alignment. The maximum deflection resulting from bending forces acting on the tubular planet gear shafts is minimized by changing the boundary conditions at the ends of the planet gear shafts. This change in the boundary conditions is achieved by the use of structure positioned within the planetary gear shafts and extending through the length of the rotary gear actuator and common to all of the axially aligned tubular gear shafts, with one embodiment of such support structure being a bolt which preloads the adjacent tubular planet gear shafts. The support of the tubular planet gear shafts enables the design of a geared rotary actuator using longer planet gear shafts for increased torque-transmitting capability while keeping planet gear shaft deflections within acceptable limits for optimum gear mesh.
摘要翻译： 一种多级齿轮传动旋转致动器，具有多个平衡复合差速器，提供多级输出，并将高速，低扭矩输入转换成低速，高扭矩输出，用于移动构件，例如 飞机飞行控制面。 平衡复合行星差速器各自具有多个行星齿轮轴，其中心齿轮和外齿轮位于中心齿轮的相对侧，并且行星差速器的管状行星齿轮轴处于轴向对准。 通过改变行星齿轮轴端部的边界条件，使作用在管状行星齿轮轴上的弯曲力产生的最大偏转最小化。 边界条件的这种变化通过使用位于行星齿轮轴内并延伸通过旋转齿轮致动器的长度并且与所有轴向对齐的管状齿轮轴共同的结构来实现，这种支撑结构的一个实施例是 螺栓，其预加载相邻的管状行星齿轮轴。 管状行星齿轮轴的支撑使得能够设计使用更长行星齿轮轴的齿轮传动旋转致动器，以提高转矩传递能力，同时将行星齿轮轴偏转保持在可接受的极限范围内以获得最佳齿轮啮合。
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公开(公告)号：US4605358A
公开(公告)日：1986-08-12
申请号：US685909
申请日：1984-12-24
申请人： Wesley A. Burandt
发明人： Wesley A. Burandt
摘要： In many aircraft, there are flight control surfaces positioned by mechanical actuation systems that are driven by hydraulic power drive units. There are also devices for transmitting hydraulic power from one aircraft hydraulic system to another in the event that one of the system's pumps fails. An integration of structure to perform both of these functions in a single unit would result in a reduction in cost and weight as well as increased reliability. The integrated power drive and power transfer system has a pair of variable displacement hydraulic devices each in a separate hydraulic circuit and each having a drive shaft connected into a summing gear train connected to an output shaft. A selectively-operable brake is in the operative connection between the output shaft and the summing gear train and controls either driving of the output shaft with both variable displacement hydraulic devices operating as motors or transfer of power between the hydraulic circuits with one variable displacement hydraulic device operating as a motor and the other as a pump.
摘要翻译： 在许多飞机中，有由液压动力驱动装置驱动的机械驱动系统定位的飞行控制面。 在系统的一个泵故障的情况下，还有用于将液压动力从一个飞行器液压系统传输到另一个的装置。 在单个单元中执行这两个功能的结构的集成将导致成本和重量的降低以及增加的可靠性。 集成的动力驱动和动力传递系统具有一对可变排量液压装置，每个液压装置分开在液压回路中，每个具有连接到与输出轴连接的相加齿轮系的驱动轴。 一个选择性可操作的制动器处于输出轴和求和齿轮系之间的操作连接中，并且控制输出轴的驱动，两个可变排量的液压装置作为电动机操作，或者在液压回路之间用一个可变排量液压装置 作为电机运行，另一个作为泵运行。
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公开(公告)号：US4578993A
公开(公告)日：1986-04-01
申请号：US565675
申请日：1983-12-30
申请人： Wesley A. Burandt
发明人： Wesley A. Burandt
IPC分类号： G01L3/14 , B64C13/28 , B64C13/34 , B64C13/50 , B64D45/00 , F16H1/28 , F16H61/12 , F16H63/42 , G01M13/02
CPC分类号： G01M13/02 , B64C13/28 , B64C13/34 , Y10S475/90
摘要： A failure detection mechanism for a geared rotary actuator having plural output stages. Each output stage has a planetary gearing set and the failure detection mechanism senses relative movement between planet gear shafts of adjacent planetary gearing sets when there is normal drive through one planetary gearing set and a back-drive through the other. The failure detection mechanism includes structure operable when a failure is sensed to either prevent further drive through the geared rotary actuator, or to activate mechanism to signal a pilot of an airplane that the failure has occurred.
摘要翻译： 具有多个输出级的齿轮转动致动器的故障检测机构。 每个输出级具有行星齿轮传动装置，并且当通过一个行星齿轮传动装置的正常驱动和通过另一行星齿轮传动装置的后驱动时，故障检测机构感测相邻行星齿轮组的行星齿轮轴之间的相对运动。 故障检测机构包括当感测到故障以防止进一步驱动通过齿轮传动旋转致动器的结构时可操作的结构，或者激活机构来发信号通知发生故障的飞机的飞行员。
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公开(公告)号：US4555978A
公开(公告)日：1985-12-03
申请号：US580074
申请日：1984-02-14
CPC分类号： F15B18/00 , F01B13/04 , Y10T74/19009 , Y10T74/19014
摘要： A multiple displacement motor driven power drive unit having two separate hydraulic systems each with a variable displacement hydraulic motor having its output connected to a torque summing gear train. A control provides for operation of one or the other of the motors at full displacement while the other motor is at zero displacement and free-wheels. There is a manual mechanical control operation with both motors simultaneously set at one-half of full displacement and driving the torque summing gear train. The change in motor displacements to one-half full displacement accomplishes velocity summing within the hydraulics. The multiple displacement motor driven power drive unit accomplishes the power efficiency of a multiple motor driven power drive unit utilizing a speed summing gear train with fixed displacement motors, but without the complexities associated with the use of a speed summing gear train and brakes.
摘要翻译： 一种多排量马达驱动的动力驱动单元，具有两个单独的液压系统，每个单独的液压系统具有可变排量液压马达，其输出连接到扭矩加和齿轮系。 一个控制器提供一个或另一个电动机的满载位移，而另一个电动机处于零位移和自由轮。 有一个手动机械控制操作，两个电机同时设置为全位移的一半，并驱动扭矩加和齿轮系。 电动机位移到半满排量的变化在液压系统内完成速度求和。 多排量马达驱动的动力驱动单元利用具有固定排量马达的速度求和齿轮系实现多马达驱动动力驱动单元的功率效率，但没有与使用速度求和齿轮系和制动器相关联的复杂性。
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