Rolls-Royce Corporation

Rolls-Royce North American Technologies Inc.

Donald E Pinnick

Bruce Edward Varney

Kenneth William Froemming

James Carl Loebig

Todd S Taylor

Kevin Sauer

Russell N Bennett

Caleb Camara

Bradley A Lemke

Catherine Hidlebaugh

Kathryn M Dimon

Kathryn A Dimon

Kevin M Sauer

A gas turbine engine variable porosity combustor liner has a laminated alloy structure. The laminated alloy structure has combustion chamber facing holes on one side and cooling plenum facing holes on a radially opposite side. The combustion chamber facing holes are in fluid communication with the cooling plenum facing holes via axially and circumferentially extending flow passages sandwiched between metal alloy sheets of the laminated alloy structure. Porous zones having respective different cooling flow amounts are formed in the laminated alloy structure based on at least one of an arrangement of the combustion chamber facing holes, an arrangement of the cooling plenum facing holes, and an arrangement of the flow passages.

Gas turbine engine variable porosity combustor liner

Crossover tubes for use with cans of a turbine engine. The crossover tubes include an outer member, an inner member that is adapted to move collinearly with the outer member. The crossover tubes also include a pair of flanges and a biasing member positioned between the flanges.

Combustor with spring-loaded crossover tubes

A gas turbine engine variable porosity combustor liner has a laminated alloy structure. The laminated alloy structure has combustion chamber facing holes on one side and cooling plenum facing holes on a radially opposite side. The combustion chamber facing holes are in fluid communication with the cooling plenum facing holes via axially and circumferentially extending flow passages sandwiched between metal alloy sheets of the laminated alloy structure. Porous zones having respective different cooling flow amounts are formed in the laminated allow structure based on at least one of an arrangement of the combustion chamber facing holes, an arrangement of the cooling plenum facing holes, and an arrangement of the flow passages.

Gas turbine engine with improved combustion liner

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Mooresville, IN, United States of America

Donald E Pinnick