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:
Apr. 08, 2025
Filed:
Mar. 30, 2020
General Electric Company, Schenectady, NY (US);
Rahul Anil Bidkar, Niskayuna, NY (US);
Deepak Trivedi, Niskayuna, NY (US);
Christopher Edward Wolfe, Niskayuna, NY (US);
Darren Lee Hallman, Niskayuna, NY (US);
Kristopher Frutschy, Niskayuna, NY (US);
Mark Bowen, Niskayuna, NY (US);
General Electric Company, Evendale, OH (US);
Abstract
A rotary machine seal assembly () includes seal segments () configured to circumferentially extend around a rotor () between a stator () and the rotor () of a rotary machine. One or more seal segments include a shoe plate (), a seal base (), and at least one intermediate member (). The shoe plate is disposed along the rotor. The seal base is disposed radially outward of the shoe plate. At least one intermediate member is coupled to and disposed between the seal base and the shoe plate. The at least one intermediate member includes an actuator portion () having first coefficient of thermal expansion and a constrictor portion () having a different, second coefficient of thermal expansion. The at least one intermediate member is configured to move the shoe plate from a radially outward position to a radially inward position with respect to the rotor responsive to the at least one intermediate member undergoing a temperature change.