Patent ID: 9409228
Filing Date: 2016-08-09
CPC Classification: B21K,F01D,F02C,F04D,Y10T

Claim Text:
1. A method for attaching an impeller cover of a centrifugal compressor of a turbine engine, the cover including a concave shell and an axisymmetric connection forming an attachment between a junction formed substantially in a middle of the shell and a peripheral axial attachment holding the shell apart from the impeller, the method comprising: arranging an elastically deformable portion including a radial rim and a double-elbow joint on the connection closer to a first end for attachment than to a second end for junction to the shell so that a distance between the shell and the impeller is held constant with minimal clearances at intermediate and transient speeds of the turbine engine, wherein, at a rest position, the double-elbow joint includes a first elbow at a substantially right angle at a first end of the radial rim, and a second elbow at an obtuse angle at a second end of the radial rim, the first elbow being disposed radially outward of the second elbow.