Compressor impeller fastening for high speed turboengines

Details Compressor impeller fastening for high speed turboengines Compressor impeller fastening for high speed turboengines

1998-09-14

2000-01-11

Ryznic, John E.

Fluid reaction surfaces (i.e., impellers)

Support mounting, carrier or fairing structure

B63H 128, F01D 500, F03B 102

Patent

active

060129018

ABSTRACT:
The object of the invention is to provide a safe and reproducible compressor impeller fastening for high speed turboengines, which, moreover, possesses more accurate concentricity.
This is achieved, according to the invention, in that both the hub cone (9) and the shaft cone (11) each have a mean diameter (23, 24) and these mean diameters (23, 24) are arranged at an axial distance (25) from the mass center of gravity (14) of the compressor impeller (4), said distance corresponding at least to half the mean diameters (23, 24). On the shaft side of the hub cone (9), the through bore (8) of the hub (6) is designed at least partially as a cylindrical bore (16).

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