United Technologies Corporation

Raytheon Technologies Corporation

Chris J Niggemeier

Lifang Yuan

Gabriel L Suciu

William K Ackermann

James D Hill

Anthony R Bifulco

Joey Wong

Zhijun Zheng

Andreas Sadil

Kevin Joseph Low

Julian Partyka

John H Mosley

Karl D Blume

Harvey C Lee

Justin J Phillips

Gabriel L Sucui

A fuel nozzle for a combustor a gas turbine engine includes a flange with a first locator.

Fuel nozzle for a gas turbine engine

A case for a gas turbine engine includes a case wall and a boss that extends from the case wall. The boss includes a perimeter step.

Reduced stress boss geometry for a gas turbine engine

An inner diffuser case for use in a combustor of a gas turbine engine includes a multiple of struts across an annular flow path between an outer shroud and an inner shroud, at least one of the multiple of struts is an open strut.

Inner diffuser case struts for a combustor of a gas turbine engine

A cooling system for providing a buffer cooled cooling air to a turbine section of a gas turbine engine is disclosed. The cooling system may comprise a first conduit configured to transmit a cooling air toward the turbine section, a heat exchanger configured to cool a bleed airflow diverted from the first conduit to provide a buffer air, and a bypass conduit configured to direct at least a portion of the buffer air through at least one passageway that bypasses a bearing compartment of the gas turbine engine. The cooling system may further comprise a manifold configured to allow the cooling air exiting the first conduit and the buffer air exiting the bypass conduit to mix and provide the buffer cooled cooling air, and a nozzle assembly configured to deliver the buffer cooled cooling air to the turbine section.

Cooling system with a bearing compartment bypass

A bracket for attaching a gearbox to an engine casing has a first portion having a first array of openings for receiving attachments therethrough, the first portion having, on a backside thereof, a first rail for engaging a slot in the engine casing, and a second portion having a second array of openings for receiving attachments therethrough. A hookup for attaching to the gearbox attaches to and in between the first portion and the second portion for diminishing effects of radial rotation between the casing and the gearbox.

Gearbox mount bracket

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Manchester, CT, United States of America

Chris J Niggemeier