Fan blade retention and variable pitch system

Details Fan blade retention and variable pitch system Fan blade retention and variable pitch system

2009-05-13

2011-12-13

Chu, Chris (Department: 2815)

Fluid reaction surfaces (i.e., impellers)

Having positive means for impeller adjustment

Motor bodily rotatable with impeller hub or shaft

C416S148000, C416S154000

Reexamination Certificate

active

08075270

ABSTRACT:
A system for providing variable pitch to a rotor blade of an aircraft engine includes a rotatable hub; at least one blade mounted on the rotatable hub; a gear mechanism operably connected to the rotatable hub; a timing ring rotatably and operably connected to the gear mechanism; and a pitch arm operably connecting the timing ring and the at least one blade mounted on the rotatable hub. In the operation of the system, the gear mechanism facilitates the rotation of the timing ring to vary the pitch of the at least one blade mounted on the rotatable hub.

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