Patents Assigned to AIBUS OPERATIONS (SAS) - Justia Patents Search

Patents Assigned to AIBUS OPERATIONS (SAS)

Propeller for an aircraft engine comprising means for reducing noise at middle and high frequencies and improving the acoustic perception

Patent number: 9540094

Abstract: Enriching and balancing the acoustic spectrum radiated by a propeller by introducing a differential pitch angle on certain blades of the propeller. Modifying the acoustic spectrum makes it possible to render the propeller noise more pleasant to the human ear.

Type: Grant

Filed: May 14, 2013

Date of Patent: January 10, 2017

Assignee: AIBUS OPERATIONS (SAS)

Inventors: Camil Negulescu, Magdi Omais