公开(公告)号：US20240017824A1

公开(公告)日：2024-01-18

申请号：US18373172

申请日：2023-09-26

Applicant: Lockheed Martin Corporation

Inventor： James Breen Orbon ,  James McCollough ,  Evan S. Tobin ,  Xiaole Xie ,  Jonathan Frydman

IPC: B64C27/46 ,  B64D13/00 ,  B64C27/12

CPC classification number: B64C27/46 ,  B64D13/006 ,  B64C27/12 ,  B64C2027/8272

Abstract: A propeller system for a tail section of an aircraft includes a propeller hub located at the tail section of the aircraft, a plurality of propeller blades mounted to and extending outwardly from the propeller hub, a propeller shaft coupled to the propeller hub and operable to rotate the propeller hub about an axis of rotation, and a propeller gearbox connected to the propeller shaft. The propeller gearbox is fluidly cooled by an airflow within the tail section. A spinner assembly surrounds the propeller hub. The spinner assembly includes at least one outlet opening formed therein downstream from the propeller hub relative to the airflow. The spinner assembly is rotatable to draw the airflow into at least one cooling flow inlet formed in the tail section and across the propeller gearbox to cool the propeller gearbox and out the at least one outlet opening.

公开(公告)号：US11772784B2

公开(公告)日：2023-10-03

申请号：US16933019

申请日：2020-07-20

Applicant: LOCKHEED MARTIN CORPORATION

Inventor： James Breen Orbon ,  James McCollough ,  Evan S. Tobin ,  Xiaole Xie ,  Jonathan Frydman

IPC: B64C27/46 ,  B64D13/00 ,  B64C27/12 ,  B64C27/82

CPC classification number: B64C27/46 ,  B64C27/12 ,  B64D13/006 ,  B64C2027/8272

Abstract: A propeller system for a tail section of an aircraft includes a propeller hub located at the tail section of the aircraft, a plurality of propeller blades mounted to and extending outwardly from the propeller hub, a propeller shaft coupled to the propeller hub and operable to rotate the propeller hub about an axis of rotation, and a propeller gearbox connected to the propeller shaft. The propeller gearbox is fluidly cooled by an airflow within the tail section. A spinner assembly surrounds the propeller hub. The spinner assembly includes at least one outlet opening formed therein downstream from the propeller hub relative to the airflow. The spinner assembly is rotatable to draw the airflow into at least one cooling flow inlet formed in the tail section and across the propeller gearbox to cool the propeller gearbox and out the at least one outlet opening.

公开(公告)号：US20220017214A1

公开(公告)日：2022-01-20

申请号：US16933019

申请日：2020-07-20

Applicant: LOCKHEED MARTIN CORPORATION

Inventor： James Breen Orbon ,  James McCollough ,  Evan S. Tobin ,  Xiaole Xie ,  Jonathan Frydman

IPC: B64C27/46 ,  B64C27/12 ,  B64D13/00

Abstract: A propeller system for a tail section of an aircraft includes a propeller hub located at the tail section of the aircraft, a plurality of propeller blades mounted to and extending outwardly from the propeller hub, a propeller shaft coupled to the propeller hub and operable to rotate the propeller hub about an axis of rotation, and a propeller gearbox connected to the propeller shaft. The propeller gearbox is fluidly cooled by an airflow within the tail section. A spinner assembly surrounds the propeller hub. The spinner assembly includes at least one outlet opening formed therein downstream from the propeller hub relative to the airflow. The spinner assembly is rotatable to draw the airflow into at least one cooling flow inlet formed in the tail section and across the propeller gearbox to cool the propeller gearbox and out the at least one outlet opening.