Multi-blade propeller or airscrew - incorporates axial displacement of blades to increase airflow speed

摘要

The blades are separately fitted to the hub and are pitched so that the following blade cuts into the airflow from the leading blade. The airflow is successively increased in speed as it passes through the propeller. The system can be used for aircraft as well as wind driven generators. A more efficient airflow thrust is obtd. The construction of the separate blades is simplified, as is their assembly. USE/ADVANTAGE - Improved efficiency, simple construction.