Patent ID: 7887296
Filing Date: 2011-02-15
Classification: F01D,Y02T

Abstract:
1. A fan hub assembly for a tip turbine engine comprising: a fan hub defining a hub axis of rotation, said fan hub defining an elongated opening located about an outer periphery of said fan hub; a fan blade section which defines a core airflow passage therethrough; a fan blade mount section of said fan blade section receivable within said elongated opening for retention therein; a diffuser section of said fan blade section in communication with said core airflow passage to turn an airflow within said core airflow passage to an axial airflow direction; a turbine blade section which extends from said diffuser section, said turbine blade section includes a multitude of turbine blades, said multitude of turbine blades comprise a first row of shrouded turbine blades and a second row of shrouded turbine blades; and an inducer receivable within said elongated opening, said inducer defining an airflow passages which turns an airflow from an axial airflow direction toward a radial airflow direction to be communicated into said core airflow passage.