Nonlinearly stacked low noise turbofan stator

Details Nonlinearly stacked low noise turbofan stator Nonlinearly stacked low noise turbofan stator

2005-06-23

2009-06-16

Verdier, Christopher (Department: 3745)

Rotary kinetic fluid motors or pumps

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

C415S191000, C415S192000, C415S208200, C415S210100, C415S211200

Reexamination Certificate

active

07547186

ABSTRACT:
A nonlinearly stacked low noise turbofan stator vane having a characteristic curve that is characterized by a nonlinear sweep and a nonlinear lean is provided. The stator is in an axial fan or compressor turbomachinery stage that is comprised of a collection of vanes whose highly three-dimensional shape is selected to reduce rotor-stator and rotor-strut interaction noise while maintaining the aerodynamic and mechanical performance of the vane. The nonlinearly stacked low noise turbofan stator vane reduces noise associated with the fan stage of turbomachinery to improve environmental compatibility

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