The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 2025
Filed:
Nov. 27, 2023
Honeywell International Inc., Charlotte, NC (US);
Eric Bridges, Phoenix, AZ (US);
Mark Morris, Phoenix, AZ (US);
Joseph Yanof, Phoenix, AZ (US);
Partha Das, Phoenix, AZ (US);
John McClintic, Phoenix, AZ (US);
Steven Whitaker, Phoenix, AZ (US);
Jason Smoke, Phoenix, AZ (US);
HONEYWELL INTERNATIONAL INC., Charlotte, NC (US);
Abstract
Gas turbine engines and methods for reducing spool thrust in a turbine section thereof are provided. The engines include a turbine disk, a shaft coupled to the turbine disk, an inner cavity downstream of the turbine disk, a thrust bearing assembly mechanically coupled to the shaft, a seal assembly having a seal land, and a controller. The controller is configured to detect a loss of oil event to the thrust bearing assembly and, in response: actuate the seal assembly to move the seal land toward a downstream face of the turbine disk to form a continuous axial seal about the inner cavity, supply a pressurized gas to the inner cavity to increase pressure in therein to an extent greater than an operating pressure thereof, and maintain the axial seal and the pressure within the inner cavity and thereby reduce the axial loads on the shaft.