Rotor for an axial turbine

Details Rotor for an axial turbine Rotor for an axial turbine

1977-06-29

1978-07-25

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

416241B, F01D 532

Patent

active

041026020

ABSTRACT:
A turbine rotor is constructed by attaching ceramic turbine blades to a metallic disk. Each of the ceramic blades has an enlarged base which is mounted within an undercut axial groove on the disk. Cushion pads are provided between the turbine blade base and the undercut portion of the groove. The cushion pads are designed with a different radius of curvature than the disk base and a yield pressure which is less than the allowable surface pressure of the ceramic. The rotor construction results in a design which significantly reduces the possibility of turbine blade damage from stresses during use.

REFERENCES:
patent: 2317338 (1943-04-01), Rydmark
patent: 2667327 (1954-01-01), Hardigg
patent: 2783967 (1957-03-01), Scharf et al.
patent: 2821357 (1958-01-01), Schorner
patent: 3784320 (1974-01-01), Rossmann et al.
patent: 3832092 (1974-08-01), Manharth

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