Reduced noise aircraft stator vane

Details Reduced noise aircraft stator vane Reduced noise aircraft stator vane

2006-09-05

2006-09-05

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

With sound or vibratory wave absorbing or preventing means...

C415S208200, C415S211200

Reexamination Certificate

active

07101145

ABSTRACT:
A fan of an aircraft engine is provided with a rotating fan rotor for feeding air aftward as a spiral flow and a stator vane for rectifying the spiral flow to be an axial flow. The fan stator vane is provided with a hub end portion extending radially relative to a rotating axis of the fan rotor and a tip end portion leaning toward a suction side. Leading edges of the hub end portion and the tip end portion have sweepback angles of from 27 degrees to 33 degrees relative to a radial direction defined by the rotating axis.

REFERENCES:
patent: 4470755 (1984-09-01), Bessay
patent: 6045327 (2000-04-01), Amr
patent: 6554564 (2003-04-01), Lord
patent: 2002-349498 (2002-12-01), None

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