Patent ID: 11964772
Assignee: RTX CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC B  F  Y | IPC B

Claim 0:
1. An aircraft propulsion system comprising:
a propulsive fan assembly configured for assembly into an aircraft structure, the propulsive fan assembly including a fan rotatable about a fan axis;
an inlet duct assembly disposed within the aircraft structure, the inlet duct assembly including an upper inlet duct with an upper inlet opening and a lower inlet duct with a lower inlet opening, wherein the upper inlet duct and the lower inlet duct each include a height that expands from a minimum height, measured between two opposing surfaces at a corresponding one of the upper inlet opening and the lower inlet opening to a maximum height, measured between the two opposing surfaces, before a transition region and a splitter disposed forward of where the upper inlet duct and the lower inlet duct merge into a common inlet duct forward of the propulsive fan assembly; and
an outlet duct disposed aft of the propulsive fan assembly.