Locking pin system for turbine curved root side entry closing bl

Details Locking pin system for turbine curved root side entry closing bl Locking pin system for turbine curved root side entry closing bl

1986-07-11

1988-08-30

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

416193A, F01D 532

Patent

active

047672757

ABSTRACT:
A redundant locking system for the closing blades of a circular array of curved Christmas tree-shaped roots of side entry freestanding steam turbine blades which have registering holes in the platform of the closing blades and the blades adjacent to the closing blades which receive pins, the pins fit tightly into the through holes and loosely into the hole in the adjacent blade to lock the closing blades in place and allow each blade to vibrate independently.

REFERENCES:
patent: 1719415 (1929-07-01), Back
patent: 1793468 (1931-02-01), Densmore
patent: 1890581 (1932-12-01), Kohler
patent: 2431249 (1947-11-01), Heppner
patent: 2651494 (1953-09-01), Persson
patent: 2843356 (1958-07-01), Hull
patent: 2976014 (1961-03-01), Kress
patent: 3158353 (1964-11-01), Reid et al.
patent: 3986793 (1976-10-01), Warner et al.
S.A.E. Journal, Feb., 1948, pp. 32-35.

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