Patent ID: 8091335
Filing Date: 2012-01-10
Classification: F02K,F05D

Abstract:
1. A fan ramp for a pivot door turbofan thrust reverser, the fan ramp comprising: a cylindrical unit, operable to pass airflow from a turbine; an elliptical flared portion, operable to reduce drag on airflow in a reverse direction, the elliptical flared portion coupled with an aft circumference of the cylindrical unit; a side portion, operable to reduce side spillage airflow, the side portion coupled with the aft circumference of the cylindrical unit; and a rectangular flared portion, operable to promote separation of airflow into an upper airflow path and a lower airflow path, the rectangular flared portion coupled with the aft circumference of the cylindrical unit and connected to the elliptical flared portion and the side portion.