公开(公告)号：US20020018716A1

公开(公告)日：2002-02-14

申请号：US09955769

申请日：2001-09-19

申请人： The Boeing Company

发明人： Dennis K. Kennedy ,  Friedrich K. Straub ,  Ahmed A. Hassan

IPC分类号： F01D007/00

CPC分类号： B64C27/008 ,  B64C27/001 ,  B64C2027/7266 ,  Y02T50/34 ,  Y10S416/50

摘要： A system for quasi-statically correcting tracking of rotor blades of a helicopter rotor during operation includes a trim tab mounted on each rotor blade and deflectable relative to the rotor blade so as to change a tracking path of the rotor blade, and a rotor track and balance analyzer that includes sensors for acquiring rotor tracking and balance information and is operable to process the rotor tracking and balance information so as to predetermine a new tab position to which the trim tab should be deflected for bringing the tracking path of a mistracking rotor blade into alignment with a reference path. The trim tab is deflected by an actuator mounted to the rotor blade, the actuator having an actuating element coupled with the trim tab and formed of a smart material such that the actuating element deforms proportional to a stimulus applied to the actuating element. An electrical locking device is included which is operable when de-energized to lock the trim tab against deflection, and operable when energized to unlock to permit the trim tab to be deflected. A trim actuation control system in communication with the rotor track and balance analyzer and the locking device is arranged to energize the locking device and to supply electrical power to the actuator so as to deflect the trim tab to the new tab position predetermined in the rotor track and balance analyzer, and to then de-energize the locking device and cut off the electrical power to the actuator. Thus, electrical power is supplied to the actuator only while the trim tab is being deflected, and is then discontinued once the tab has reached the desired position and the locking device has been de-energized to lock the tab against further movement.

公开(公告)号：US20020187041A1

公开(公告)日：2002-12-12

申请号：US10147611

申请日：2002-05-16

发明人： Uwe Arnold

IPC分类号： F01D007/00

CPC分类号： B64C27/605 ,  B64C2027/7216 ,  B64C2027/7255 ,  F05B2200/32 ,  Y02T50/34

摘要： In an individual rotor blade control device for a helicopter main rotor with a rotor shaft that can be driven by a main drive, with an even number of rotor blades that are arranged on the periphery of a rotor hub, with primary control mechanisms for collective and sinusoidal, cyclic rotor blade adjustment, which include a transfer element for the control movements from a non-rotating system to a rotating system and with actuators that are individually allocated to the rotor blades, wherein the actuator control movement is superimposed onto the control movement of the primary control mechanisms and each actuator is equipped with a safety device in order to bring the actuator into its final position and keep it there, if necessary, it is suggested that the setting angle change of one half of the rotor blades have an opposed direction due to the securing of the actuators in their final positions, like the setting angle change of the other half of rotor blades, and that the rotor blades of each half be distributed on the periphery in such a way that no pitching moments that could affect the rotor are generated.

摘要翻译： 在用于具有可由主驱动器驱动的转子轴的直升机主转子的单个转子叶片控制装置中，具有布置在转子毂的周边上的偶数个转子叶片，具有用于集体和 其包括用于从非旋转系统到旋转系统的控制运动的转移元件以及单独分配给转子叶片的致动器，其中致动器控制运动叠加到控制运动 主控制机构和每个致动器配备有安全装置，以便使致动器进入其最终位置并保持在那里，如果需要，建议转子叶片的一半的设定角度变化具有相对的方向 由于致动器固定在其最终位置，如转子叶片的另一半的设定角度变化，并且转子叶片 每半个分配在周边，使得不会产生可能影响转子的俯仰时刻。

公开(公告)号：US20020131859A1

公开(公告)日：2002-09-19

申请号：US10098297

申请日：2002-03-18

申请人： C.R.F. SOCIETA CONSORTILE PER AZIONI

发明人： Stefano Alacqua ,  Francesco Butera

IPC分类号： F01D007/00

CPC分类号： F04D29/368 ,  F03G7/065

摘要： A propeller or fan, in particular a cooling fan, such as for the radiator of a motor vehicle or electric equipment, for civil or industrial plants, comprising shape-memory actuator means to regulate the direction and/or shape of the blades, for example according to variations in temperature.

摘要翻译： 螺旋桨或风扇，特别是用于民用或工业设备的用于机动车辆或电气设备的散热器的冷却风扇，包括用于调节叶片的方向和/或形状的形状记忆致动器装置，例如 根据温度的变化。

公开(公告)号：US20020081200A1

公开(公告)日：2002-06-27

申请号：US09992260

申请日：2001-11-19

发明人： Jean Mondet ,  Stephane Mazet

IPC分类号： B64C027/39 ,  F01D007/00

CPC分类号： B64C27/50

摘要： On the rotor, between each blade integral with its folding mount and the member for linking with the hub, an electrical connecting cable comprises a first section of which one part is held, in any position of the blade about the folding axis, above said mount and the radially outer end of the link member on which the mount pivots, in an off-centered position with respect to the folding axis and on the side towards which the blade is designed to be folded. This holding is provided by a cable support tied to the folding pivot and on which an arm, receiving the held part of this section of cable, is mounted in cantilever manner on the folding side.

摘要翻译： 在转子上，在与其折叠安装件一体的每个叶片和用于与轮毂连接的构件之间，电连接电缆包括第一部分，其中一个部分在叶片围绕折叠轴线的任何位置被保持在所述安装件的上方 并且所述连接构件的径向外端在其上枢转，处于相对于折叠轴线的偏心位置以及设计所述叶片被折叠的一侧。 该保持由连接到折叠枢轴的电缆支撑件提供，并且其中接收该部分电缆的保持部分的臂以悬臂方式安装在折叠侧上。

公开(公告)号：US20020192078A1

公开(公告)日：2002-12-19

申请号：US10225507

申请日：2002-08-21

申请人： Flexxaire Manufacturing Inc.

发明人： Jonathan E. McCallum ,  Brian J. Bruchal ,  Murray C. Gerwing

IPC分类号： F01D007/00

CPC分类号： F04D29/063 ,  F04D27/002 ,  F04D29/362

摘要： A variable pitch fan in which the pitch of the fan blades is varied under control of a controller according to the speed of the fan. The controller is programmed to respond to increased fan speed by decreasing pitch of the fan blades. The variable pitch fan has a piston extending axially from a main shaft, about which main shaft a fan blade hub rotates. A pitch shifter is mounted on a cylinder, which itself is mounted on the piston. The pitch shifter is actuated by hydraulic fluid supplied through the main shaft to the cylinder. The piston is preferably axially stationary in relation to the main shaft. The cylinder is secured against rotational movement by cooperating out of round surfaces. Grease for the pitch shifter is supplied through the guide pin. One guide pin may be used for grease supply, while another may be used for excess grease return. Cooling of a pitch shifter may be accomplished using a heat sink mounted within the fan hub, preferably in a fan configuration, to conduct heat away from the cylinder into air rotating within the fan hub. Counterweights are mounted on each fan blade of a variable pitch fan, preferably hydraulically actuated, in a position which generates a torque opposite in direction to torque generated by the fan blades. The counterweights may be overbalanced, underbalanced, or balanced.

公开(公告)号：US20020081202A1

公开(公告)日：2002-06-27

申请号：US09992683

申请日：2001-11-19

发明人： Nicolas Certain ,  Eric Coisset

IPC分类号： F01D007/00 ,  B64C027/39

CPC分类号： B64C27/50 ,  B64D15/12

摘要： On the rotor, between each blade and the member for linking with the hub, an electrical connecting cable comprises a first section of which one part is held above that one of the two blade pins which is the detachable pin whose withdrawal allows the folding of the blade by pivoting about the other blade pin forming a pivot pin, by holding means tied to this detachable pin, in the flight position of the blade. This section of cable is released from its holding means before the withdrawal of the latter and of the detachable blade pin, which precedes the folding, in such a way that this section of cable deforms naturally on following the pivoting of the blade. After deployment of the blade, a part of the section of cable is again held in the holding means, in the flight position of the blade.

摘要翻译： 在转子上，在每个叶片和用于与轮毂连接的构件之间，电连接电缆包括第一部分，其中一个部分被保持在两个叶片销之一上方，该两个叶片销是可拆卸销，其退回允许折叠 刀片通过围绕另一个刀片销枢转而形成枢轴销，通过将固定在该可拆卸销上的装置固定在刀片的飞行位置。 电缆的这一部分在其后退和折叠之前的可拆卸的刀片销之前从其保持装置释放，使得该部分电缆随着叶片的枢转而自然变形。 在展开刀片之后，电缆部分的一部分在刀片的飞行位置再次被保持在保持装置中。

公开(公告)号：US20020081201A1

公开(公告)日：2002-06-27

申请号：US09992355

申请日：2001-11-19

发明人： Jean Mondet ,  Stephane Mazet

IPC分类号： B64C027/39 ,  F01D007/00

CPC分类号： B64C27/50 ,  B64D15/12

摘要： On the rotor, between each blade and the member for linking with the hub, an electrical connecting cable comprises a first section of which one part is held above that one of the two blade pins which is the pivot pin about which the blade can be folded by pivoting, once the other blade pin has been removed. This holding is provided by a cradle formed in a cable support connected to the pivot pin, and by a collar articulated to one edge of the cradle and which can be folded down into the closed position onto the opposite edge of the cradle, to which this collar can be connected detachably by at least one detachable retaining element. The section of cable is manually released from the collar and from the cradle before the removal of the removable pin, which precedes folding, so that this section of cable deforms naturally, following the pivoting of the blade. While the blade has been deployed, the releasable part of this section is once again retained in the cradle above the pivot pin by the closing of the collar.

摘要翻译： 在转子上，在每个叶片和用于与轮毂连接的构件之间，电连接缆线包括第一部分，其中一个部分被保持在两个叶片销之一上方，即两个叶片销之间的一个，该叶片可绕其折叠 一旦另一个刀片销被移除，通过枢转。 该保持由形成在连接到枢轴销的电缆支架中的托架以及铰接到托架的一个边缘的套环提供，并且可以向下折叠到关闭位置到托架的相对边缘上， 套环可以通过至少一个可拆卸保持元件可拆卸地连接。 电缆的一部分在拆除可折叠的销之前，从套环和托架手动释放，以使电缆的这一部分自然地变形，随着叶片的转动。 当叶片已经展开时，该部分的可释放部分通过关闭套环再次保持在枢轴销上方的托架中。

公开(公告)号：US20040031267A1

公开(公告)日：2004-02-19

申请号：US10219494

申请日：2002-08-16

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Yukio Otake

IPC分类号： F02D023/00 ,  F04D029/26 ,  F04D029/18 ,  B64C011/30 ,  F01D007/00 ,  B63H003/10

CPC分类号： F02D1/065 ,  B64C11/303 ,  B64C11/305 ,  B64D27/04 ,  B64D31/14 ,  F02C9/48 ,  F02D23/02 ,  F02D31/001 ,  F02D41/0007 ,  F02D41/021 ,  F02D2250/38 ,  F05D2270/05 ,  Y02T10/144

摘要： In the control system for a turbo-charged diesel aircraft engine, the engine speed and the fuel injection amount are controlled by a single control lever in such a manner that the engine speed and the fuel injection amount maintain a predetermined fixed relationship in which the fuel injection amount is always smaller than a smoke limit amount. The control system further includes a boost compensator, that restricts the fuel injection amount to a value less than a boost pressure fuel limit determined by the boost pressure of the engine, and an altitude compensator that restricts the fuel injection amount to the value less than an altitude fuel limit.

摘要翻译： 在用于涡轮增压柴油飞机发动机的控制系统中，发动机转速和燃料喷射量由单个控制杆控制，使得发动机转速和燃料喷射量保持预定的固定关系，其中燃料 喷射量总是小于烟雾限制量。 控制系统还包括升压补偿器，其将燃料喷射量限制为小于由发动机的增压压力确定的增压压力燃料极限的值;以及高度补偿器，其将燃料喷射量限制为小于 高空燃油限制。

公开(公告)号：US20030007868A1

公开(公告)日：2003-01-09

申请号：US10147773

申请日：2002-05-16

发明人： Hans-Jurgen Gotte ,  Oliver Kunze

IPC分类号： F01D007/00

CPC分类号： F15B11/126

摘要： The invention relates to a hydraulic fluid actuator configuration with a working piston (2) that is guided in an actuating cylinder (4), with this piston being supplied pressure on both sides. In order to prevent an excursion of the working piston (2) from its neutral position (xnull0) due to leakage, a hydraulic fluid displacement device (20) is suggested, which supplies a control volume over a period of a harmonic movement of the working piston (2) to the side of the working piston (2) to which it traveled.

摘要翻译： 本发明涉及一种具有在致动缸（4）中被引导的工作活塞（2）的液压流体致动器构造，该活塞在两侧被供应压力。 为了防止工作活塞（2）由于泄漏而从其中立位置（x = 0）的偏移，提出了一种液压流体排量装置（20），其提供在谐波运动的周期内的控制体积 工作活塞（2）到其行进的工作活塞（2）侧。

公开(公告)号：US20020150473A1

公开(公告)日：2002-10-17

申请号：US10101534

申请日：2002-03-18

发明人： Henry A. Castle

IPC分类号： B63H003/00 ,  F01D007/00

CPC分类号： B63H3/082 ,  B63H3/12 ,  B63H2003/084 ,  B63H2003/088

摘要： A system that allows a boat propeller to maintain a constant blade speed by varying the pitch of the propeller in order to allow the boat's motor to operate at an optimum RPM. The system includes a governor that sends hydraulic fluid to an annular piston, which in turn controls the pitch of the boat propeller blades so that the torque experienced by the engine is kept approximately constant.

摘要翻译： 一种允许船用螺旋桨通过改变螺旋桨的桨距来保持恒定叶片速度以允许船的马达以最佳RPM操作的系统。 该系统包括调节器，该调速器将液压流体发送到环形活塞，该调节器又控制船用螺旋桨叶片的桨距，使得发动机经历的扭矩保持近似恒定。