20240018900. UNDUCTED PROPULSION SYSTEM simplified abstract (General Electric Company)

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UNDUCTED PROPULSION SYSTEM

Organization Name

General Electric Company

Inventor(s)

Syed Arif Khalid of West Chester OH (US)

Daniel L. Tweedt of West Chester OH (US)

David B. Riddle of Cincinnati OH (US)

UNDUCTED PROPULSION SYSTEM - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240018900 titled 'UNDUCTED PROPULSION SYSTEM

Simplified Explanation

The patent application describes apparatuses and systems for unducted propulsion systems, specifically for high subsonic sustained flight with low drag. The system includes an aft housing that is designed to minimize drag. The housing has a flowpath curve that extends from the axial extent of the aft blade root to the aft end of the housing. The flowpath curve is defined by an axial direction parallel to the axis of rotation and a radius from the axis of rotation. The curve includes a first point with a maximum radius aft of the aft blade root and a second point forward of the first point with a radius that stops decreasing. The ratio of the first radius to the second radius is equal to or greater than 1.081.

  • The patent application is for an apparatus and system for unducted propulsion systems.
  • The system includes an aft housing that reduces drag for high subsonic sustained flight.
  • A plurality of blades are attached to the aft housing.
  • The housing has a flowpath curve that extends from the axial extent of the aft blade root to the aft end of the housing.
  • The flowpath curve is described by an axial direction and a radius from the axis of rotation.
  • The curve includes a first point with a maximum radius aft of the aft blade root and a second point forward of the first point with a radius that stops decreasing.
  • The ratio of the first radius to the second radius is equal to or greater than 1.081.

Potential Applications

  • This technology can be applied in the field of aviation for high subsonic sustained flight.
  • It can be used in the design and development of aircraft engines and propulsion systems.

Problems Solved

  • The system addresses the issue of drag in unducted propulsion systems, allowing for more efficient and sustained flight.
  • It provides a solution for reducing drag and improving performance in high subsonic flight.

Benefits

  • The aft housing design reduces drag, resulting in improved fuel efficiency and increased range.
  • The flowpath curve design optimizes the performance of the unducted propulsion system.
  • The system allows for high subsonic sustained flight with minimal drag, enhancing overall aircraft performance.


Original Abstract Submitted

apparatuses and systems are provided herein for unducted propulsion systems. the system includes an aft housing for low drag for high subsonic sustained flight. a plurality of blades are affixed to the aft housing, wherein the housing defines a flowpath curve extending from the axial extent of the aft blade root to the aft end of the aft housing. the flowpath curve is described by an axial direction parallel to an axis of rotation and a radius from the axis of rotation. the flowpath curve includes first point having a first radius where the radius reaches a maximum aft of the aft blade root and a second point forward of the first point having a second radius where the radius stops decreasing. the ratio of the first radius to the second radius is greater than or equal to 1.081.