公开(公告)号：US06602049B2

公开(公告)日：2003-08-05

申请号：US09953143

申请日：2001-09-17

申请人： Jean-Pierre Caubet ,  Daniel Dao ,  Antoine Jean ,  Didier Merville

发明人： Jean-Pierre Caubet ,  Daniel Dao ,  Antoine Jean ,  Didier Merville

IPC分类号： F04D2944

CPC分类号： F04D29/563 ,  F01D5/143 ,  F01D17/162 ,  F05D2250/19 ,  F05D2250/29 ,  Y02T50/673

摘要： In a turbomachine compressor stator comprising a plurality of variable-pitch vanes (36), each vane mounted in rotation, about an axis of pivoting (38), in a wall (34) forming a surface of revolution about a longitudinal central axis of rotation of the turbomachine (32), being inclined by a specified angle (&agr;) with respect to a plane perpendicular to this longitudinal central axis, there is provision for this wall to be machined locally opposite an end part of each vane (42) so as to form a spherical portion or pocket (40) whose center is positioned on the axis of pivoting and whose radius is determined so as to ensure, over the entire range of operation of the vane, a predetermined minimum clearance between this end part of each vane and the opposite machined spherical pocket while limiting the depth of machining of this pocket.

公开(公告)号：US06688846B2

公开(公告)日：2004-02-10

申请号：US09953130

申请日：2001-09-17

申请人： Jean-Pierre Caubet ,  Antoine Jean ,  Jacky Naudet ,  Gabrijel Radeljak ,  Sébastien Riccioz

发明人： Jean-Pierre Caubet ,  Antoine Jean ,  Jacky Naudet ,  Gabrijel Radeljak ,  Sébastien Riccioz

IPC分类号： F01D1716

CPC分类号： F01D17/16 ,  F01D17/162 ,  F04D29/563 ,  Y02T50/672 ,  Y10T403/32073 ,  Y10T403/32106 ,  Y10T403/32172 ,  Y10T403/50 ,  Y10T403/54 ,  Y10T403/551

摘要： A flexible rod (20) is articulated at a first end to a control ring (30) and is fixed at a second end to a pivot of a blade (10) that is to be controlled. At this second end, it is held so that it can rotate without play on the blade pivot by a holding device (44; 52; 54). The articulation device comprise a pivot (24) passing through a first orifice (22) pierced in this first end and engaged in a radial housing (28) of the control ring, the pivot being held in position by a locking ring (34) which has openings (36) for the passage of this pivot and which slides on this control ring. The fixing device comprise a fixing screw (40) passing through a second orifice (38) pierced in the second end of the rod and introduced into a hole (42) of the pivot of the blade that is to be controlled.

摘要翻译： 柔性杆（20）在第一端处铰接到控制环（30）并且在第二端处固定到待控制的叶片（10）的枢轴。 在该第二端，通过保持装置（44; 52; 54）将其保持成能够在叶片枢轴上无间隙地旋转。 铰接装置包括穿过第一孔（22）的枢轴（24），所述第一孔（22）在该第一端被刺穿并且接合在控制环的径向壳体（28）中，所述枢轴通过锁定环（34）保持就位， 具有用于该枢轴通过并且在该控制环上滑动的开口（36）。 定影装置包括通过穿过杆的第二端的第二孔（38）的固定螺钉（40），并被引入待控制的叶片的枢轴的孔（42）中。