United Technologies Corporation

Raytheon Technologies Corporation

Christine F McGinnis

Steven J Bauer

Brian Duguay

Michael S Stevens

Karl A Mentz

Judith F Brooks

Tomasz Pelic

Major D Jones

Tim R Bedard

James Tisley Auxier

A case for a gas turbine engine includes a cast case section cast case section configured to be welded between a forward case section and an aft case section.

Forged cast forged outer case for a gas turbine engine

A heat shield vane support may have a structure including at least one of a cylindrical and a frustoconical portion with an outboard diameter and an inboard diameter extending about an axis and extending axially between a forward face and an aft face and may comprise a flange extending circumferentially about the aft face radially inward from the inboard diameter, a plurality of anti-rotation features distributed circumferentially about the inboard diameter extending radially inward from the inboard diameter and extending axially with respect to the cylindrical structure between a forward edge and an aft edge defining a length L, and a plurality of teeth distributed circumferentially about the forward face and extending axially from the forward face.

Support ring with thermal heat shield for case flange

Systems and methods are disclosed herein for dressing centering a bearing compartment in a gas turbine engine. A nut may be inserted through an outer case of a gas turbine engine. The nut may be coupled to a strut which centers a bearing compartment. The nut may be rotated to achieve a desired tension on the strut to center the bearing compartment. A retaining plate comprising a collar may be positioned over the nut. A swaging tool comprising a swaging ramp may be positioned over the nut. The swaging tool may be forced against the retaining plate using a draw-in bolt. The swaging ramp may contact the collar and form indentations in the collar to lock the nut in place.

Method for centering bearing compartments

A component for a gas turbine engine includes at least one cooled surface configured to contact a cooling flow, the at least one cooled surface has a base surface and a plurality of cooling nubs disposed about the base surface. The plurality of cooling nubs are distributed about the base surface in a mixed pattern.

Turbine component including mixed cooling nub feature

Systems and methods for centering bearing compartments

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New Britain, CT, United States of America

Christine F McGinnis