Siemens Energy, Inc.

Siemens Energy Global Gmbh & Co. Kg

Mikro Systems, Inc.

Domenico Gambacorta

Clifford E Johnson

Robert James Bland

Timothy A Fox

Walter Ray Laster

Reinhard Schilp

Samer P Wasif

Wojciech Dyszkiewicz

Daniel Cassar

A system effective for dual utilization of cooling fluid in a gas turbine engine is provided. A cooling annulus is subject to a hot-temperature combustion flow received from a combustor basket and includes a liner including a feed channel to receive cooling fluid. A feed manifold is in fluid communication with feed channel to feed cooling fluid to a plurality of conduits in fluid communication with a plurality of exit orifices that is in fluid communication with a plurality of resonators. A distributor manifold includes a plurality of manifold sectors in fluid communication with a plurality of conduits arranged to convey cooling fluid. Some of the plurality of resonators operates with different amounts of cooling fluid. A group of the plurality of exit orifices is configured to supply an amount of cooling fluid appropriate for a resonator in fluid communication with the group of the plurality of exit orifices.

System with conduit arrangement for dual utilization of cooling fluid in a combustor section of a gas turbine engine

A fuel injector for use in a gas turbine engine combustor assembly. The fuel injector includes a main body and a fuel supply structure. The main body has an inlet end and an outlet end and defines a longitudinal axis extending between the outlet and inlet ends. The main body comprises a plurality of air/fuel passages extending therethrough, each air/fuel passage including an inlet that receives air from a source of air and an outlet. The fuel supply structure communicates with and supplies fuel to the air/fuel passages for providing an air/fuel mixture within each air/fuel passage. The air/fuel mixtures exit the main body through respective air/fuel passage outlets.

Air/fuel supply system for use in a gas turbine engine

A gas turbine combustor having a Helmholtz resonator in a post-swirler homogenization zone upstream of the combustor zone. Embodiments of the present invention provide Helmholtz resonators that include cavities that occupy a remainder of a post-swirler homogenization zone, which also includes at least one flow-directing structure that passes a fuel/oxidizer mixture from a main swirler assembly into a combustion zone of a combustor. Thus, an open annular region of the combustor is converted into a multi-purpose zone that includes at least one Helmholtz resonator.

Forward-section resonator for high frequency dynamic damping

Embodiments of the present invention provide resonators () that have lateral walls () disposed at non-square angles relative to the liner's longitudinal (and flow-based) axis () such that a film cooling of substantial portions of an intervening strip () is provided from apertures (A,B,) in a resonator box () adjacent and upstream from the intervening strip (). This film cooling also cools weld seams () along the lateral walls () of the resonator boxes (). In various embodiments the lateral wall angles are such that film cooling may be provided to include the most of the downstream portions of the intervening strips (). These downstream portions are closer to the combustion heat source and therefore expected to be in greater need of cooling.

Non-rectangular resonator devices providing enhanced liner cooling for combustion chamber

A pre-mixer assembly associated with a fuel supply system for mixing of air and fuel upstream from a main combustion zone in a gas turbine engine. The pre-mixer assembly includes a swirler assembly disposed about a fuel injector of the fuel supply system and a pre-mixer transition member. The swirler assembly includes a forward end defining an air inlet and an opposed aft end. The pre-mixer transition member has a forward end affixed to the aft end of the swirler assembly and an opposed aft end defining an outlet of the pre-mixer assembly. The aft end of the pre-mixer transition member is spaced from a base plate such that a gap is formed between the aft end of the pre-mixer transition member and the base plate for permitting a flow of purge air therethrough to increase a velocity of the air/fuel mixture exiting the pre-mixer assembly.

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Oviedo, FL, United States of America

Domenico Gambacorta