Hamilton Sundstrand Corporation

United Technologies Corporation

Caterpillar Inc.

David Ronald Adair

Walter Ainslie

Anthony C Jones

Gordon F Jewess

Eric J Alexander

Richard E Annati

Michael E Mehrer

Brian C DeDe

David Lau

Rhonda Walthall

Christine Ingrid Schade

Robert C Lancaster

Pete Simpson

William K Dornfeld

Walter Ernest Ainslie

A compressor assembly is disclosed. The compressor assembly may have a compressor housing. The compressor assembly may also have a compressor impeller disposed within the compressor housing. Further, the compressor assembly may have a bearing housing attached to the compressor housing. The compressor assembly may also have a diffuser ring disposed between the compressor housing and the bearing housing. In addition, the compressor assembly may have at least one tab. The tab may extend radially outward from the diffuser ring. The tab may be configured to engage with a recess in the compressor housing. The compressor assembly may also have at least one fastener. The fastener may be configured to attach the diffuser ring and the compressor housing.

Compressor assembly having a diffuser ring with tabs

A method of aligning flanges on two components to align and transfer torque from one component to the other uses a plurality of scallop regions on the periphery of a flange on one component; and a plurality of raised regions on the periphery of a flange on the other component, the raised regions being sized and shaped to engage the scallop regions on the flange when axially aligned to transfer torque there between.

Method of flange alignment

An example method of sealing an interface within a gas turbine engine includes holding a sealing ring arrangement relative to a turbine nozzle using a flange extending from a combustor liner. The method further includes urging the sealing ring arrangement toward a sealed relationship with the turbine nozzle.

Method of sealing combustor liner and turbine nozzle interface

A first structural static component having an outer diameter is aligned with a second structural static component having an inner diameter to the centerline of a gas turbine engine rotating assembly. The first static component is centered inside the second static component leaving a gap between the outer diameter of the first component and the inner diameter of the second component to permit them to mate at operating temperatures. Tabs and slots are placed on the periphery of the static components to align the static components with the centerline at build temperature.

Alignment of static parts in a gas turbine engine

A drain assembly for an auxiliary power unit having a hot zone formed by a combustor case comprises a fire enclosure, a drain fitting, a discharge port and a piston seal. The fire enclosure encapsulates the hot zone of the combustor case. The drain fitting connects to the fire enclosure. The discharge port extends from the combustor case into the drain fitting. The piston seal is positioned between the drain fitting and the discharge port.

Auxiliary power unit fire enclosure drain seal

A gas turbine engine sealing arrangement which includes a combustor liner establishing a combustion area and a turbine nozzle configured to receive a portion of a combustor liner. A sealing ring arrangement is configured to seal with the turbine nozzle to control fluid flow from the combustion area and reduce leakage.

Combustor interface sealing arrangement

A method of determining lubrication oil consumption in a gas turbine engine that has an engine operating cycle interval comprising a starting phase, a running phase and a shutdown phase, comprises the steps of: measuring lubrication oil level upon initialization of the starting phase of each engine operating cycle interval; comparing the starting phase measured lubrication oil level during the starting phase with a starting phase baseline lubrication measurement; recording the starting phase lubrication oil level measurement; determining average engine lubrication oil consumption rate during the complete engine operating cycle interval by dividing the difference between the starting phase lubrication oil measurement and the baseline lubrication oil measurement; and repeating these steps for each subsequent engine operating cycle interval; wherein the starting phase baseline lubrication oil level measurement is initially a predetermined lubrication oil level and then the previous starting phase lubrication oil measurement for subsequent engine operating cycle intervals.

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Valley Center, CA, United States of America

David Ronald Adair