Rotor blade pitch control assembly

Details Rotor blade pitch control assembly Rotor blade pitch control assembly

2006-01-10

2006-01-10

Verdier, Christopher (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Method of operation

C416S003000, C416S024000, C244S075100, C244S215000

Reexamination Certificate

active

06984109

ABSTRACT:
A rotor blade assembly provides a pitch control assembly to pitch the rotor blade about a rotor blade pitch axis. The pitch control assembly includes a trailing edge flap and a trailing edge servo flap that extend from the trailing edge of the rotor blade. The trailing edge flap is offset in the span wise direction relative to the trailing edge flap. The trailing edge servo flap is located upon a trailing edge servo flap arm linked to the trailing edge flap. To pitch the rotor blade, the trailing edge servo flap is pitched in a direction opposite the desired pitch direction of the trailing edge flap.

REFERENCES:
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patent: 4715567 (1987-12-01), Poccard
patent: 4789305 (1988-12-01), Vaughen
patent: 5409183 (1995-04-01), Gunsallus
patent: 5626312 (1997-05-01), Head
patent: 5639215 (1997-06-01), Yamakawa et al.
patent: 6530542 (2003-03-01), Toulmay
patent: WO 02/094655 (2002-11-01), None

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