公开(公告)号：US11143349B2

公开(公告)日：2021-10-12

申请号：US15600146

申请日：2017-05-19

申请人： AIRBUS OPERATIONS GMBH

发明人： Michael Rappitsch ,  Konrad Rauch ,  Jens Döring ,  Dirk Friedewald-Witte

IPC分类号： F16L39/00 ,  F16L9/18 ,  F16L9/19 ,  B64D37/00

摘要： A shrouded pipe formed from inner and outer pipe sections, the inner pipe section having an outwardly projecting flange joining the outer pipe section, and the outer pipe section having an inwardly projecting flange joining the inner pipe section, an annular volume between the inner and outer pipe sections providing a secondary fluid path. The flanges control axial position of the inner pipe section. By providing one flange which extends radially outwardly and one which extends radially inwardly, assembly is possible of the shrouded pipe by inserting the inner pipe section into the outer pipe section, without modification of the outer pipe section or inner pipe section. The first and second flanges ensure no unwanted contact between the inner and outer pipe sections and, therefore, prevent damage to the primary fluid path. The first and second flanges ensure good load distribution between the inner and outer pipe sections.