General Electric Company

Robert Bruce Walmsley

James Thompson

Bernard Mc Arthur Knippenberg

Thomas Anthony Leen

Hubert S Robert, Jr

A method is provided for increasing the contact area between a damper wire and a sheet metal component in a combustion cowl of a gas turbine engine. This increase in contact area reduces the wear rate on the combustor cowl. A first curl is formed in the sheet metal component. A damper wire is situated to have a common contact area with the sheet metal component within the first curl. The first curl is die-formed around the damper wire before applying a heat treat operation to the structure. A final die-form closes the sheet metal curl around the damper wire.

Method for making damped combustion cowl structure

Damped combustion cowl structure

Service life is improved in a swirler assembly including a primary swirler and a secondary swirler having a venturi formed thereon and being disposed in engagement with the primary swirler. First and second rails are formed on the secondary swirler and are positioned to engage the primary swirler and thereby prevent relative rotation of the primary and secondary swirlers.

Growing community of inventors

Moscow, OH, United States of America

Robert Bruce Walmsley