Tandem fan stage for gas turbine engines

Details Tandem fan stage for gas turbine engines Tandem fan stage for gas turbine engines

1982-10-14

1985-04-23

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Apertured or permeable

416201R, 415181, 415DIG1, F04D 2938

Patent

active

045127182

ABSTRACT:
A fan rotor assembly having decreased susceptibility to vibratory damage is disclosed. In one embodiment described the rotor assembly includes a plurality of principal fan blades 22 and a plurality of secondary fan blades 36 associated therewith. The secondary blades are coextensive with the principal fan blades over the inner portion of the principal blade span.

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patent: 3244400 (1966-04-01), Saunders
patent: 3606579 (1971-09-01), Mehus
patent: 3692425 (1972-09-01), Erwin
patent: 3867062 (1975-02-01), Troller

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