Runner with mechanical coupling

Details Runner with mechanical coupling Runner with mechanical coupling

1989-05-05

1990-04-10

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Coating, specific composition or characteristic

416244A, 4152171, F01D 528

Patent

active

049155890

ABSTRACT:
A runner is provided which consists of a radial turbine ceramic rotor with an integrated ceramic shaft and a non-ceramic compressor impeller which are connected by a releasable, thermally and mechanically loadable mechanical coupling in such a way that the releasable mechanical coupling is located with the compressor impeller. This coupling consists of a cylindrical slotted sleeve which, on the one hand, is fitted into a cylindrical fitting bore in the compressor impeller and, on the other hand, accepts the end of the ceramic shaft in a fitting bore. In addition, the coupling has a tie rod with a screw thread and a pair of conical clamping elements between the cylindrical sleeve and the compressor impeller.

REFERENCES:
patent: 4396445 (1983-08-01), Sasaki et al.
patent: 4424003 (1984-01-01), Brobeck
patent: 4697325 (1987-10-01), Kamigaito et al.
patent: 4784574 (1988-11-01), Tsuno et al.
patent: 4798493 (1989-01-01), Oda et al.
Fortschrittsberichte der Deutschen Keramischen Gesellschaft (1986/87).

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