Donald Joseph Weir

US Patent:

7547186, Jun 16, 2009

Filed:

Jun 23, 2005

Appl. No.:

11/166668

Inventors:

William B. Schuster - Phoenix AZ, US
Karen B. Kontos - Phoenix AZ, US
Donald S. Weir - Scottsdale AZ, US
Nick A. Nolcheff - Chandler AZ, US
John A. Gunaraj - Chandler AZ, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

F01D 9/04

US Classification:

415119, 415191, 415192, 4152082, 4152101, 4152112

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.