Abstract: Apparatus and associated methods relate to a segmented radial seal assembly that includes at least two segments, each segment having a first end and a second end at opposite ends. A first segment first end has a protruding feature and defines a tangential vector from a circumferential ring that is formed by the segmented radial seal. The protruding feature defines a curved face having at least a first axis of curvature that is parallel to the tangential vector. The second segment second end has a recessed feature that is matingly engageable to the first segment first end, thereby forming a first radial seal segment joint. The segmented radial seal assembly is configured to surround a shaft.

Abstract: A method of determining wear of a seal element includes rotating a seal plate relative to the seal element and such that the seal plate and the seal element form a rotational sealing interface. The seal element includes an insert embedded in the seal element. A portion of the seal element is worn with a sealing face of the seal plate. The insert is contacted with the sealing face of the seal plate. A portion of the insert is worn to create a wear particle of the insert. The presence of the wear particle in a lubrication oil is sensed with an oil monitoring system.

Abstract: A bearing assembly according to an example of the present disclosure includes, among other things, a bearing situated in a bearing compartment, a seal assembly that defines the bearing compartment, at least one deflector between the bearing and the seal assembly that is rotatable about an axis, and a coalescer at least partially extending about the at least one deflector to define a fluid passage. A method of sealing is also disclosed.

Abstract: An assembly includes a housing, a carrier, a spring element and a seal element. The housing includes a bore and an annular groove that extends axially along a centerline into the housing from the bore. The carrier projects axially along the centerline into the annular groove. The carrier is configured to translate axially along the centerline relative to the housing. The spring element is arranged within the annular groove. The spring element is configured to bias the carrier axially away from the housing along the centerline. The seal element is mounted to the carrier and arranged within the bore.

Abstract: A seal housing may comprise an aft flange, an outer diameter (OD) ring and a stopper. The stopper may extend radially inward from a radially inner surface of OD ring. The stopper may be configured to interface with a monobloc carbon seal. The stopper may comprise a circumferential stopping portion and an axial stopping portion. There may be a plurality of the stopper.

Abstract: A method of determining wear of a seal element includes rotating a seal plate relative to the seal element and such that the seal plate and the seal element form a rotational sealing interface. The seal element includes an insert embedded in the seal element. A portion of the seal element is worn with a sealing face of the seal plate. The insert is contacted with the sealing face of the seal plate. A portion of the insert is worn to create a wear particle of the insert. The presence of the wear particle in a lubrication oil is sensed with an oil monitoring system.

Abstract: A gas turbine engine includes a cover, a support, and a sealing member. The cover has a cover housing and a cover arm extending from the cover housing between a first arm end connected to the cover housing and a second arm end having a cover end surface. The support has a support body, a first support arm extending between a first support arm first end connected to the support body and a first support arm second end. The cover arm extends into the first support arm. The sealing member at least partially extends across a gap defined between the cover end surface and the first support arm.

Abstract: A method of determining wear of a seal element includes rotating a seal plate relative to the seal element and such that the seal plate and the seal element form a rotational sealing interface. The seal element includes an insert embedded in the seal element. A portion of the seal element is worn with a sealing face of the seal plate. The insert is contacted with the sealing face of the seal plate. A portion of the insert is worn to create a wear particle of the insert. The presence of the wear particle in a lubrication oil is sensed with an oil monitoring system.

Abstract: Aspects of the disclosure are directed to an apparatus comprising a first section, and a second section coupled to the first section, wherein the second section is configured to substantially coincide with an edge of a seal and includes a pre-tapered edge.

Abstract: A seal assembly for a rotatable component having an axis of rotation. The seal assembly may include a first seal mounted to a housing and configured to be in sealing engagement with the rotatable component, a second seal mounted to the housing an axial distance apart from the first seal and configured to be in sealing engagement with the rotatable component, wherein the axial distance is parallel with the axis of rotation, a buffer fluid chamber defined between the first seal and the second seal, and a buffer fluid inlet in fluid providing communication with the buffer fluid chamber.

Abstract: The present disclosure relates to sealing systems for bearing compartments. In one embodiment, a sealing system includes a runner configured to extend circumferentially around a rotating component, the runner is formed of a material with low radial thermal growth and is configured to fit to the rotating component to remove heat away from the runner. The runner can include an outer surface configured to provide passive cooling for the runner in the bearing compartment. The sealing system can also include a seal configured to operate with the runner, wherein the seal includes a clearance seal on an air side of the runner. The runner can be configured to operate without direct oil cooling.

Abstract: A gas turbine engine includes a cover, a support, and a sealing member. The cover has a cover housing and a cover arm extending from the cover housing between a first arm end connected to the cover housing and a second arm end having a cover end surface. The support has a support body, a first support arm extending between a first support arm first end connected to the support body and a first support arm second end. The cover arm extends into the first support arm. The sealing member at least partially extends across a gap defined between the cover end surface and the first support arm.

Abstract: One exemplary embodiment of this disclosure relates to a gas turbine engine. The engine includes a compressor section, a combustor section, a turbine section, and at least one rotatable shaft. The engine further includes a bearing assembly including an inner race, an outer race, and a plurality of rolling elements. A seal assembly is also included. The seal assembly includes a seal plate mounted for rotation with the rotatable shaft. The seal plate establishes a boundary of a tortuous passageway.

Abstract: A bearing assembly according to an example of the present disclosure includes, among other things, a bearing situated in a bearing compartment, a seal assembly that defines the bearing compartment, at least one deflector between the bearing and the seal assembly that is rotatable about an axis, and a coalescer at least partially extending about the at least one deflector to define a fluid passage. A method of sealing is also disclosed.

Abstract: A turbine engine includes a main shaft bearing compartment seal. The seal includes at least an approximately circular seal portion and a seal carrier disposed about the approximately circular seal portion. A plurality of anti-rotation pins maintain the seal carrier in position relative to a housing and are received in an anti-rotation slot of the seal carrier.

Abstract: A seal assembly for a rotatable component having an axis of rotation. The seal assembly may include a first seal mounted to a housing and configured to be in sealing engagement with the rotatable component, a second seal mounted to the housing an axial distance apart from the first seal and configured to be in sealing engagement with the rotatable component, wherein the axial distance is parallel with the axis of rotation, a buffer fluid chamber defined between the first seal and the second seal, and a buffer fluid inlet in fluid providing communication with the buffer fluid chamber.

Abstract: A rolling element bearing includes a plurality of rolling elements, a bearing inner ring and a bearing outer ring. The rolling elements are arranged circumferentially around an axis, and radially between the inner ring and the outer ring. The inner ring includes a plurality of first passages, a second passage and a channel that extends axially into the inner ring. The first passages are arranged circumferentially around the axis. The first passages respectively extend axially through the inner ring from a plurality of first passage inlets to the channel. The second passage includes a second passage inlet that is substantially axially aligned with one of the first passage inlets. The second passage extends radially through the inner ring to a second passage outlet.

Abstract: Aspects of the disclosure are directed to an apparatus comprising a first section, and a second section coupled to the first section, wherein the second section is configured to substantially coincide with an edge of a seal and includes a pre-tapered edge.

Abstract: The present disclosure relates to sealing systems for bearing compartments. In one embodiment, a sealing system includes a runner configured to extend circumferentially around a rotating component, the runner is formed of a material with low radial thermal growth and is configured to tit to the rotating component to remove heat away from the runner. The runner can include an outer surface configured to provide passive cooling for the runner in the bearing compartment. The sealing system can also include a seal configured to operate with the runner, wherein the seal includes a clearance seal on an air side of the runner. The runner can be configured to operate without direct oil cooling.

Abstract: A turbine engine includes a main shaft bearing compartment seal. The seal includes at least an approximately circular seal portion and a seal carrier disposed about the approximately circular seal portion. A plurality of anti-rotation pins maintain the seal carrier in position relative to a housing and are received in an anti-rotation slot of the seal carrier.