ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,753, issued on May 13, was assigned to GE Infrastructure Technology LLC (Greenville, S.C.).
"System and process for active draft control of power plant" was invented by Pierre Beaufrere (Belfort, France) and Garth Curtis Frederick (Greenville, S.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A combined cycle power plant CCPP includes one turbomachine and heat recovery steam generator HRSG that is shutdown (or offline) and a second turbomachine and heat recovery steam generator HRSG that is online. The HRSG supplied duct dampers can provide sealing air therein to ensure no back flow from the online turbomachine to the shutdown turbomachine of the ...