Internal blade retention system for rotary engines

Details Internal blade retention system for rotary engines Internal blade retention system for rotary engines

1988-11-28

1990-01-23

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

416218, F01D 532

Patent

active

048954900

ABSTRACT:
The invention comprises an internal blade retention system for rotary engines and particularly for gas turbine engines. The system comprises a rotary disk 12 positioned for rotation within the turbine engine, the disk having a multitude of dovetail blade slots 16 and a groove 12E centrally positioned on its circumferential edge and cutting across the blade slots. A preloaded circular snap ring 10 is positioned in the centrally located groove 12E on the disk edge and in its relaxed position the snap ring extends radially outward from the groove. Multiple blades 14 are installed onto the blade seats in the disk, each of the blades having a base with a centrally located goove 14E that engages the snap ring 10 in order to axially lock the blade in its seat.

REFERENCES:
patent: 1606029 (1926-11-01), Herr
patent: 1890581 (1932-12-01), Kohler
patent: 2713991 (1955-07-01), Secord et al.
patent: 2867408 (1959-01-01), Kolb et al.
patent: 3610777 (1971-10-01), Wagle
patent: 3807898 (1974-04-01), Guy et al.
patent: 3814539 (1974-06-01), Klompas
patent: 4022545 (1977-05-01), Shank
patent: 4189282 (1980-02-01), Benoist et al.
patent: 4389161 (1983-06-01), Brumen

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