Rolls-royce Corporation

Rolls-royce North American Technologies Inc.

Larry Allen Junod

Jeffrey F Rhodes

Kerry J Lighty

Ted Joseph Freeman

David John Thomas

Richard Christopher Uskert

Joseph Peter Henderkott

Joseph P Lamusga

Timothy Fuesting

Oran A Watts, Iii

Ronald J Snyder

John F Click

Timothy Paul Fuesting

Oran A Watts Iii

A lubrication system for a gas turbine engine is disclosed. The lubrication system is configured to provide pressurized air and lubricant to a bearing sump of the gas turbine engine to cool and lubricate a bearing included in the bearing sump.

Gas turbine engine lubrication system

A rotor system lock for a gas turbine engine is described which blocks movement of rotating wheel assemblies relative to static vane assemblies in a gas turbine engine in order to block unintended rotation (or windmilling) of the gas turbine engine when it is exposed to high winds while at rest or to ram air during pre-launch flight and thereby avoid damage to components of the engine.

Turbine assembly having a rotor system lock

A gas turbine engine airflow member including a blade core portion, a shroud tip portion extending from the blade core portion, and an airfoil portion formed exteriorly to the blade core portion, where the blade core portion and the shroud tip portion are constructed as a first unitary structure and the airfoil portion is constructed as a second structure. A method of forming a gas turbine engine component is also disclosed.

Composite blade with an integral blade tip shroud and method of forming the same

In some examples, an adaptive machining system may include a model comparison unit, a compromise shape determination unit, and a program modification unit. The model comparison unit can be configured to compare electronic measured dimensional surface data of a component with an electronic surface model of the component. The compromise shape determination unit can be configured to determine a compromise shape for the component based on the comparison. The program modification unit can be configured to modify a machine tool program code based on the compromise shape.

Adaptive machining of components

A method includes receiving a design surface data set, obtaining a component surface data set from the inspection of a component, creating a modified surface data set in response to the design surface data set and the component surface data set, generating a machining path in response to the modified surface data set, and machining the component in response to the machining path to produce a machined component according to the modified surface data set. The machined component deviates from the design surface data set.

Adaptively machining component surfaces and hole drilling

One embodiment of a heat exchange system is disclosed having a heat exchange compressor and multiple evaporators capable of operating at different heat transfer requirements. The heat exchange compressor may be a single-stage or multi-stage compressor. In one form the evaporators return working fluid in separate streams to the heat exchange compressor. The heat exchange compressor may be integrated with a gas turbine engine and includes a number of inlets that correspond to a number of separate evaporators. Each inlet can be configured to receive working fluid at different locations within a pressure and velocity flow field created in the compressor. The heat exchange compressor may be driven by a shaft of the gas turbine engine and may be positioned at a variety of locations.

Gas turbine engine and integrated heat exchange system

In one embodiment a gas turbine engine is disclosed having a heat exchanger at least partially disposed in a bypass duct. In one form the gas turbine engine is a high bypass ratio engine. The heat exchanger may be coupled with a directed energy weapon to provide coolant flow and regulate the temperature of the directed energy weapon. Other devices may also be coupled with the heat exchanger, either as an alternative to in addition to the directed energy weapon.

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Greencastle, IN, United States of America

Larry Allen Junod