公开(公告)号：US20040011018A1

公开(公告)日：2004-01-22

申请号：US10617656

申请日：2003-07-14

申请人： SNECMA MOTEURS

发明人： Philippe Bouiller ,  Michel Franchet ,  Jean-Pierre Ruis

IPC分类号： F02C007/06 ,  F02C007/22

CPC分类号： F02C7/32 ,  F01D15/08 ,  F01D15/10 ,  F02C6/08 ,  Y02T50/671

摘要： The invention relates to a system for driving an accessory, such as a fuel pump or an oil pump in a turboengine, said system comprising an electric motor and further comprising an air turbine associated with said electric motor. Said air turbine is suitable for being fed with a flow of air taken from a compressor of said turboengine and contributing to driving the accessory. The system also includes a valve for controlling the flow of air taken from the compressor, which valve is in the closed position while the turboengine is starting.

摘要翻译： 本发明涉及一种用于驱动诸如涡轮发动机中的燃料泵或油泵的附件的系统，所述系统包括电动机，并且还包括与所述电动机相关联的空气涡轮机。 所述空气涡轮机适用于从所述涡轮发动机的压缩机中取出的空气流供给并有助于驱动附件。 该系统还包括用于控制从压缩机获取的空气流的阀，该阀在涡轮发动机起动时处于关闭位置。

公开(公告)号：US20030077173A1

公开(公告)日：2003-04-24

申请号：US10277750

申请日：2002-10-23

申请人： SNECMA MOTEURS

发明人： Michel Franchet ,  Daniel Kettler ,  Jean-Pierre Ruis

IPC分类号： F01D007/00

CPC分类号： F01D7/00 ,  B64C11/305 ,  B64C11/38 ,  B64C11/44 ,  F04D29/323 ,  F05D2220/36 ,  F05D2260/74 ,  F05D2260/76 ,  Y02T50/671

摘要： An electrohydraulic device for varying the pitch of the blades of a machine rotor, the blades being mounted on a hub rotated by a drive shaft of the machine, and each blade having a root capable of pivoting about a longitudinal axis of the blade, the drive shaft itself being rotated relative to a stationary structure of the machine, the device comprising firstly a hydraulic actuator whose piston is secured to a control and synchronization ring in which off-center wrist pins are engaged, each fixed in register with one of said blade roots, and having a cylinder closed by a cover that includes a high pressure hydraulic pump feeding hydraulic fluid to both faces of said piston via channels integrated in said cylinder of the actuator, and secondly an electric motor controlled and powered by an electricity generator comprising an inductor secured to said stationary structure of the machine and an armature secured to said drive shaft of the machine.

摘要翻译： 一种电动液压装置，用于改变机器转子的叶片的间距，所述叶片安装在由所述机器的驱动轴旋转的轮毂上，并且每个叶片具有能够围绕所述叶片的纵向轴线枢转的根部，所述驱动装置 轴本身相对于机器的静止结构旋转，该装置首先包括液压致动器，其活塞被固定到控制和同步环，在该环中偏心中心腕销接合，每个固定与所述叶片根部中的一个对准 并且具有由盖封闭的气缸，所述盖包括高压液压泵，其通过集成在所述致动器的所述气缸中的通道将所述活塞的两个面供给到所述活塞的两个面，其次由由发电机控制和供电的电动机，所述发电机包括电感器 固定到机器的所述固定结构上，以及固定在机器的所述驱动轴上的电枢。