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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
A turbomachine and a method of operating the turbomachine are disclosed. The turbomachine includes a stator, a rotor including a rotor bearing face, and a face seal assembly including a first segmented seal ring and a second segmented seal ring. The first segmented seal ring includes a plurality of joints and a first flat-contact surface and the second segmented seal ring includes a plurality of segment ends and a second flat-contact surface. One of the first and second segmented seal rings includes a seal bearing face. The second segmented seal ring is coupled to the first segmented seal ring such that the second flat-contact surface is in contact with the first flat-contact surface. The plurality of segment ends is circumferentially offset from the plurality of joints. The first segmented seal ring is slidably coupled to the stator and defines a face seal clearance between the rotor and seal bearing faces.
Bidkar, Rahul Anil (Niskayuna, NY), Thatte, Azam Mihir (Kensington, CA), Wang, Jifeng (Niskayuna, NY), Zheng, Xiaoqing (Niskayuna, NY), Sevincer, Edip (Watervliet, NY)
15/ 397,278
January 3, 2017
[0002] This invention was made with Government support under contract number DE-FE0024007 awarded by U.S. Department of Energy. The Government has certain rights in the invention.