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:
Mar. 04, 2025
Filed:
Oct. 30, 2023
General Electric Company, Schenectady, NY (US);
Grant Portune, Cincinnati, OH (US);
Steven Douglas Johnson, Milford, OH (US);
Bryan Jung Woo Hong, Blue Ash, OH (US);
Prateek Jalan, Bengaluru, IN;
Ravindra Shankar Ganiger, Bengaluru, IN;
Narendra Hardikar, Bengaluru, IN;
David Yamarthi, Bengaluru, IN;
GENERAL ELECTRIC COMPANY, Evendale, OH (US);
Abstract
A seal assembly for a gas turbine includes a seal case, and a seal shoe arranged within the seal case. The seal shoe includes a main seal portion that is configured to engage with a radial bearing engagement portion of a rotor shaft, a radial bearing surface that engages with the radial bearing engagement portion of the rotor shaft, at least one hydrodynamic lift cavity extending through the radial bearing surface, and at least one airflow passage extending from a first side of the seal shoe through the at least one hydrodynamic lift cavity and providing airflow communication between the first side of the seal shoe and the at least one hydrodynamic lift cavity.