GUIDE VANES FOR A PUSHER PROPELLER FOR ROTARY WING AIRCRAFT

摘要

A propulsor system for a rotary winged aircraft includes a propeller including having a propeller hub rotatable about a propeller axis and a plurality of propeller blades secured to and extending radially outwardly from the propeller hub. The propeller is oriented on the rotary winged aircraft to provide forward thrust for the rotary winged aircraft when the propeller is rotated about the propeller hub. A plurality of guide vanes non rotatable about the propeller axis are positioned upstream of the plurality of propeller blades. The plurality of guide vanes are positioned to turn an airflow flowing into the plurality or propeller blades, thereby reducing an angle of attack of the plurality of propeller blades relative to the airflow.

主权项

1. A propulsor system for a rotary winged aircraft comprising:
a propeller including:
a propeller hub rotatable about a propeller axis; anda plurality of propeller blades secured to and extending radially outwardly from the propeller hub, the propeller oriented on the rotary winged aircraft to provide forward thrust for the rotary winged aircraft when the propeller is rotated about the propeller hub; and a plurality of guide vanes non rotatable about the propeller axis and disposed upstream of the plurality of propeller blades, the plurality of guide vanes positioned to turn an airflow flowing into the plurality or propeller blades, thereby reducing an angle of attack of the plurality of propeller blades relative to the airflow.