Abstract: A hydrostatic seal assembly includes a primary seal assembly configured to maintain a selected gap between the primary seal and a rotating component, and a seal carrier. The seal carrier includes a radial outer wall, an axial wall extending from the radial outer wall at a first axial end of the radial outer wall, and a carrier arm extending from the radial outer wall at a second axial end of the radial outer wall opposite the first axial end. The carrier arm is secured to a static structure for sealing between the rotating component and the static structure.

Abstract: A seal plate for a gas turbine engine includes an annular wall provided about an axis and extending between first and second ends that are radially spaced from one another with respect to the axis. The first end includes an axially extending pilot. The second end includes an axially extending flange and an adjacent annular seal seat. The wall includes a portion between the first and second ends that extend substantially in the axial direction and is configured to permit the second end to move axially relative to the first end in response to thermal growth.

Abstract: An assembly includes a plurality of seal shoes, a seal base and a plurality of spring elements. The seal shoes are arranged around an axis in an annular array. The seal base circumscribes the annular array of the seal shoes. Each of the spring elements is radially between and connects a respective one of the seal shoes to the seal base. A first of the spring elements includes a first mount, a second mount and a spring beam. The first mount is connected to the first seal shoe. The second mount is connected to the seal base and disposed a circumferential distance away from the first mount. The spring beam extends longitudinally along a non-straight centerline between and connected to the first mount and the second mount.

Abstract: A seal arrangement may comprise a seal comprising an outer ring, a shoe, and an arm extending between the shoe and the outer ring, wherein the shoe moves relative to the outer ring via the arm, a seal ring adjacent the seal, and a support plate disposed between the seal and the seal ring, wherein the support plate moves together with the shoe in a radial direction relative to the seal ring.

Abstract: A rotor assembly is disclosed. In various embodiments, the rotor assembly includes a first rotor having a first plurality of tabs; a second rotor having a second plurality of tabs; and a rotor coupling ring having an anti-rotation tab configured for disposition between an adjacent pair of tabs from one of the first plurality of tabs or the second plurality of tabs.

Abstract: An outer seal structure for a rotor assembly includes a stator structure and a non-contact seal assembly. The non-contact seal assembly is fixed relative to the stator structure and includes a plurality of seal shoes, a seal base, a plurality of spring elements, and a shoe support plate. The plurality of seal shoes are arranged about an axis in an annular array. The seal base circumscribes the annular array of the plurality of seal shoes. Each of the plurality of spring elements extend radially between a respective seal shoe of the plurality of seal shoes and the seal base. The shoe support plate is arranged about the axis and mounted to the stator structure and includes a plurality of shoe support tabs extending axially from the shoe support plate. Each shoe support tab of the plurality of shoe support tabs is disposed between each seal shoe.

Abstract: A hydrostatic seal assembly configured to be disposed between relatively rotatable components includes a base. The seal also includes a shoe operatively coupled to the base. The seal further includes a secondary seal disposed proximate an axially forward end of the shoe, the secondary seal extending radially from a radially inner end to a radially outer end to define a radial distance of the secondary seal, the secondary seal having an axially forward face. The seal yet further includes a structural component located adjacent to the axially forward face of the secondary seal and extending radially inwardly to cover at least half of the radial distance of the secondary seal.

Abstract: An apparatus for sealing a circumferential gap between a stationary component and a rotating member is disclosed. The rotating member is configured to rotate about a longitudinal axis and has a radially outer surface disposed at a first non-zero angle with respect to the longitudinal axis. The apparatus includes a stator disposed circumferentially about the longitudinal axis and a shoe configured for translation in a radial direction with respect to the stator. The shoe includes a circumferential surface and a plurality of protrusions extending radially inward from the circumferential surface toward the rotating member, each one of the plurality of protrusions having a length configured to maintain a clearance gap with respect to the rotating member.

Abstract: A seal assembly includes a side ring and a cartridge. The side ring comprises an annular piece of solid material. The cartridge is affixed to the side ring and comprises a shoulder, a beam connected to and extending from the shoulder, a shoe attached to an end of the beam, and a rotary seal disposed on a bottom portion of the shoe.

Abstract: A hydrostatic seal assembly for a gas turbine engine includes a shoe movable radially relative to a longitudinal engine axis. At least one beam supports radial movement of the shoe. A secondary seal is fixed relative to the shoe. A rail is attached to the shoe and in sealing engagement with the secondary seal. A gas turbine engine and a method of creating a seal with a hydrostatic seal are also disclosed.

Abstract: A seal according to the present disclosure includes a plate, and a floating shoe supported with respect to the plate in a first direction. The floating shoe has a sealing feature extending in a second direction perpendicular to the first direction. At least one bearing is between the plate and the floating shoe. The bearing is configured to facilitate movement of the floating shoe with respect to the plate in the second direction. A gas turbine engine including the seal and a method of sealing a rotating component with respect to a stationary component are also disclosed.

Abstract: A non-contact seal assembly includes a plurality of seal shoes arranged about a centerline in an annular array, the seal shoes including a first seal shoe extending axially along the centerline between a first shoe end and a second shoe end. The non-contact seal assembly may comprise a seal base circumscribing axially offset from the annular array of the seal shoes. The non-contact seal assembly may further comprise a plurality of spring elements, each of the spring elements radially distal from and connecting to a respective one of the seal shoes, and each of the plurality of spring elements is axially adjacent to the seal base.

Abstract: A component retaining assembly includes a housing including a circumferential slot. A component is mated to the housing. The component includes a first face including at least two tabs. The at least two tabs extending at outward from the first face at least partially past a portion of the circumferential slot. A retaining ring is disposed within the circumferential slot and abuts the first face of the component. The at least two tabs overlap a portion of the retaining ring. A gas turbine engine and a method are also disclosed.

Abstract: A non-contact seal assembly is provided. The non-contact seal assembly includes a plurality of seal shoes arranged about a centerline in an annular array, the seal shoes including a first seal shoe extending axially along the centerline between a first shoe end and a second shoe end; a seal base circumscribing the annular array of the seal shoes; and a plurality of spring elements, each of the spring elements radially between and connecting a respective one of the seal shoes with the seal base, where the seal base and the plurality of spring elements are formed of a first material and the plurality of seal shoes are formed of a second material, where the first and second materials are joined together and the second material has a density lower than the first material.

Abstract: An assembly for rotational equipment includes a plurality of seal shoes, a seal base, a plurality of spring elements and a frangible element. The seal shoes are arranged around an axis in an annular array. The seal base circumscribes the annular array of the seal shoes. Each of the spring elements is radially between and connects a respective one of the seal shoes and the seal base. A first of the spring elements includes a first mount, a second mount and a spring beam. The first mount is connected to a first of the seal shoes. The second mount is connected to the seal base. The spring beam extends longitudinally between and connects the first mount and the second mount. The frangible element is configured to restrict radial outward movement of the first of the seal shoes.

Abstract: A seal ring for a non-contact seal may comprise an annular body comprising a first side surface, a second side surface, an outer surface, and an inner surface, and a plurality of window openings disposed in the annular body. The plurality of window openings may be configured to provide access to the seal for installation of a melting member to secure the seal shoes in an outboard direction during installation.

Abstract: A seal assembly includes first and second rings. The first ring includes a first outer ring, a first beam connected to the first outer ring, and a first shoe. The first shoe includes free and fixed ends and is configured to move radially. The second seal ring is disposed axially adjacent and is attached to the first seal ring. The second seal ring includes a second outer ring, a second beam connected to the second outer ring, and a second shoe. The second shoe includes free and fixed ends and is configured to move in a generally radial direction. The free end of the second shoe is disposed axially adjacent to the fixed end of the first shoe. The fixed end of the second shoe is disposed axially adjacent to the free end of the first shoe.

Abstract: A seal arrangement may comprise a seal comprising an outer ring, a shoe, and an arm extending between the shoe and the outer ring, wherein the shoe moves relative to the outer ring via the arm, a seal ring adjacent the seal, and a support plate disposed between the seal and the seal ring, wherein the support plate moves together with the shoe in a radial direction relative to the seal ring.

Abstract: An outer seal structure for a rotor assembly includes a stator structure and a non-contact seal assembly. The non-contact seal assembly is fixed relative to the stator structure and includes a plurality of seal shoes, a seal base, a plurality of spring elements, and a shoe support plate. The plurality of seal shoes are arranged about an axis in an annular array. The seal base circumscribes the annular array of the plurality of seal shoes. Each of the plurality of spring elements extend radially between a respective seal shoe of the plurality of seal shoes and the seal base. The shoe support plate is arranged about the axis and mounted to the stator structure and includes a plurality of shoe support tabs extending axially from the shoe support plate. Each shoe support tab of the plurality of shoe support tabs is disposed between each seal shoe.

Abstract: An assembly includes a monolithic carrier structure and a seal assembly. The monolithic carrier structure includes a carrier base and a support ring. The carrier base extends axially along the centerline. The support ring projects radially inward from the carrier base. The seal assembly is nested radially within the carrier base and axially next to the support ring. The seal assembly includes a seal base, a plurality of spring elements and a plurality of seal shoes arranged about the centerline in an annular array. The seal base circumscribes the annular array of the seal shoes. Each of the spring elements is radially between and connects a respective one of the seal shoes with the seal base.