公开(公告)号：WO1993022565A1

公开(公告)日：1993-11-11

申请号：PCT/US1992008708

申请日：1992-10-13

Applicant: HR TEXTRON INC.

Inventor： HR TEXTRON INC. ,  ACHMAD, Muchlis

IPC: F15C01/22

CPC classification number: F15C1/22 ,  Y10T137/2185 ,  Y10T137/2234 ,  Y10T137/2262

Abstract: A hydrofluidic oscillator including a momentum exchange fluidic amplifier (10) coupled to a four-way reciprocal valve (12). The four-way valve is connected to control flow of hydraulic fluid from a source (42) thereof to a using apparatus (C1, C2). The fluidic amplifier is connected to provide input signals (90, 80) to the four-way valve to cause the four-way to reciprocate responsive to the input signals. Both negative (84, 94) and positive (88, 98) feedback paths are provided from each outlet (16, 18) of the fluidic amplifier to the respective control ports (20, 22) to control oscillation of the four-way valve.

公开(公告)号：WO1995020781A1

公开(公告)日：1995-08-03

申请号：PCT/US1994007351

申请日：1994-06-29

Applicant: HR TEXTRON INC.

Inventor： HR TEXTRON INC. ,  ELROD, Alvon, C., Jr. ,  MUTHS, Donald, A. ,  NICHOLS, Larry, L. ,  SMITH, Robert, W.

IPC: G05D16/20

CPC classification number: G05D16/202

Abstract: A direct drive servovalve which includes as an integral part thereof, a motor rotor position sensor (46). The rotor position sensor (46) is used to generate an electrical signal which is representative of the degree of rotation of the rotor (52) from its null position. This signal is utilized in the feed back loop to accomplish control of the drive motor (18). The sensor (46) may include a HALL effect device (74) which is activated by the permanent magnets (70) utilized as a part of the rotor (52) of the drive motor or alternatively by a separate permanent magnet (78) which is mounted upon the rotor shaft (68) of the drive motor rotor (52). Alternatively, the position sensor (46) may include a potentiometer (80) which is mounted internal of the drive motor (18).

Abstract translation: 作为其整体部分的直接驱动伺服阀是电动机转子位置传感器（46）。 转子位置传感器（46）用于产生代表转子（52）从其零位置的旋转程度的电信号。 该信号用于反馈回路以完成驱动马达（18）的控制。 传感器（46）可以包括霍尔效应装置（74），该霍尔效应装置（74）由作为驱动马达的转子（52）的一部分的永磁体（70）启动，或者可替代地由单独的永磁体（78） 安装在驱动马达转子（52）的转子轴（68）上。 或者，位置传感器（46）可以包括安装在驱动马达（18）内部的电位计（80）。

公开(公告)号：WO1997025535A1

公开(公告)日：1997-07-17

申请号：PCT/US1996000119

申请日：1996-01-11

Applicant: HR TEXTRON INC.

Inventor： HR TEXTRON INC. ,  DELLER, Robert, W.

IPC: F15B13/16

CPC classification number: F15B13/0402 ,  F15B13/16

Abstract: A hydromechanical differentiating system (10) for actuator dynamic stiffness enhancement and dynamic load damping. A free floating spool valve (12) receives a pressure signal and moves in opposite directions away from a null position. When the valve moves in response to an increase in the pressure signal (p1), it compresses fluid in a chamber (30) connected at the opposite end of the cylinder in which the spool moves and simultaneously connects a source of fluid (22) under pressure to the chamber causing the valve to return to its null position. Conversely, if the pressure signal decreases, the spool valve allows the fluid in the chamber to expand moving the valve away from the chamber and simultanously connecting system return to the chamber to decrease the fluid pressure in the chamber and cause the valve to return to its null position.

Abstract translation: 一种用于执行器动态刚度增强和动态负载阻尼的液压机械微分系统（10）。 自由浮动滑阀（12）接收压力信号并且沿相反方向远离零位置移动。 当阀门响应于压力信号（p1）的增加而移动时，它压缩连接在阀芯移动的气缸的相对端的腔室（30）中的流体，同时将流体（22）的源 对腔室的压力导致阀返回其零位置。 相反，如果压力信号减小，则滑阀允许腔室中的流体膨胀，使阀门远离腔室并同时连接系统返回到腔室，以减小腔室中的流体压力，并使阀门返回到其 空位置

公开(公告)号：WO1995020780A1

公开(公告)日：1995-08-03

申请号：PCT/US1994007350

申请日：1994-06-29

Applicant: HR TEXTRON INC.

Inventor： HR TEXTRON INC. ,  ELROD, Alvon, C., Jr.

IPC: G05D16/00

CPC classification number: H02K26/00 ,  Y10T137/86622

Abstract: A method of manufacturing a direct drive servovalve including the steps of providing a completely packaged drive motor and a hydraulic stage positioning the drive motor upon the hydraulic stage and in engagement with a valve contained within the hydraulic stage applying a signal to the motor which is proportional to a desired output signal from the hydraulic stage moving the motor while measuring the output from the hydraulic stage and when the predetermined desired output is obtained from the hydraulic stage, then securing the motor to the hydraulic stage.

Abstract translation: 一种制造直接驱动伺服阀的方法，包括以下步骤：提供完全包装的驱动马达和液压级，将驱动马达定位在液压平台上，并与包含在液压级中的阀接合，向马达施加正比于 到来自液压级的期望的输出信号，在测量液压级的输出时移动电动机，并且当从液压级获得预定的期望输出时，将电动机固定到液压级。

公开(公告)号：WO1993023675A1

公开(公告)日：1993-11-25

申请号：PCT/US1992008716

申请日：1992-10-13

Applicant: HR TEXTRON INC.

Inventor： HR TEXTRON INC. ,  CHING, Fred, Yet-Fan

IPC: F15B15/14

CPC classification number: F15B15/1428 ,  B29C63/10 ,  B29C70/86 ,  B29K2307/00 ,  B29L2025/00 ,  F05C2203/0882 ,  F15B2215/305 ,  F16J10/02

Abstract: A composite cylinder constructed from a cylindrical liner (12) having an outer surface (18) which is dome shaped adjacent each end. A plurality of layers (30) of resin impregnated carbon filaments are wound on the outer surface (18) of the liner (19) and over the dome shaped portions. Preferably the filaments are helically wound and are wound at an angle with respect to the access of the cylindrical liner (12) such that radial stress as applied during operation will not tend to displace the filaments wound over the dome shaped portions of the liner (12). The composite cylinder is useful as an integral part of a hydraulic actuator used to position flight control surface on aircraft.

Abstract translation: 一种由圆柱形衬套（12）构成的复合圆筒，所述圆柱形衬套具有邻近每个端部的圆顶形状的外表面（18）。 树脂浸渍的碳丝的多个层（30）缠绕在衬套（19）的外表面（18）上并且在圆顶形部分之上。 优选地，细丝被螺旋缠绕并且相对于圆柱形衬套（12）的进入以一定角度缠绕，使得在操作期间施加的径向应力将不会使缠绕在衬套（12）的圆顶形部分上的细丝移位 ）。 复合气缸可用作用于在飞机上定位飞行控制表面的液压执行器的组成部分。