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BALANCE PISTON WITH A SEALING MEMBER

United States Patent Application

20170002825
A1
View the Complete Application at the US Patent & Trademark Office
A balance piston for a compressor is provided. The balance piston may include an annular body and a seal extending from an axial surface of the annular body. The annular body may be configured to be disposed about and coupled with a rotary shaft of the compressor. The seal may be configured to form a sealing engagement with at least one component of the compressor to prevent a flow of a process fluid from an impeller of the compressor to a seal cavity of the compressor.
Sorokes, James M. (Olean, NY), Kuzdzal, Mark J. (Allegany, NY)
DRESSER-RAND COMPANY (Olean NY)
15/ 072,818
March 17, 2016
STATEMENT OF GOVERNMENT INTEREST [0002] This invention was made with government support under Government Contract No. DOE-DE-FE0000493 awarded by the U.S. Department of Energy. The government has certain rights in the invention.