NON-CONTACT SEAL WITH NON-STRAIGHT SPRING BEAM(S)

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. 1. An assembly for rotational equipment , comprising:a plurality of seal shoes arranged around an axis in an annular array, the seal shoes comprising a first seal shoe;a seal base circumscribing the annular array of the seal shoes; and a first mount connected to the first seal shoe;', 'a second mount connected to the seal base and disposed a circumferential distance away from the first mount; and', 'a spring beam extending longitudinally along a non-straight centerline between and connected to the first mount and the second mount., 'a plurality of spring elements, each of the spring elements radially between and connecting a respective one of the seal shoes and the seal base, the spring elements comprising a first spring element that includes2. The assembly of claim 1 , wherein the non-straight centerline is a generally arcuate centerline.3. The assembly of claim 1 , wherein the non-straight centerline extends circumferentially about the axis.4. The assembly of claim 1 , wherein the non-straight centerline has a substantially constant radius to the axis as the spring beam extends longitudinally between the first mount and the second mount.5. The assembly of claim 1 , wherein the non-straight centerline has a variable radius to the axis as the spring ...

Axial-radial cooling slots on inner air seal

An air seal may comprise an annular ring defined by at least a proximal surface, a distal surface, an aft side and a forward side. A channel may be disposed in the forward side of the air seal and/or the aft side of the air seal and may extend between the proximal surface and the distal surface. An additional channel extending from at least one of the forward side or the aft side may be disposed in the distal surface. The channel and the additional channel may be circumferentially in line. The channels may define a flow path for direction cooling air from a proximal side of the air seal to a distal side of the air seal.

FUEL SWIRLER WITH ANTI-ROTATION FEATURES

A fuel swirler with anti-rotation features is provided. A swirler assembly may comprise a swirler, a guide plate, and a retaining ring. The swirler, the guide plate, and/or the retaining ring may comprise recessions configured to receive a retaining element. The retaining element may be configured to interface with the recessions to create an interference in the swirler assembly. The interference may at least partially resist rotation of the guide plate with respect to the swirler. 1. A swirler assembly defining a longitudinal axis , the swirler assembly comprising:a swirler having a forward swirler surface, the forward swirler surface defining a guide plate recession and an annular wall portion circumferentially surrounding the guide plate recession;a guide plate coupled within the guide plate recession of the swirler and comprising a first axial void defined axially, with respect to the longitudinal axis, through a portion of the guide plate, the guide plate being circumferentially surrounded by the annular wall portion of the forward swirler surface;a retaining ring coupled to the guide plate, the retaining ring comprising a second axial void being defined axially, with respect to the longitudinal axis, into the retaining ring; anda retaining element defining an axial protrusion extending forward from the forward swirler surface,wherein the axial protrusion is coupled within the first axial void and the second axial void, andwherein the retaining element is configured to at least partially resist rotation of the guide plate with respect to the swirler.2. The swirler assembly of claim 1 , wherein at least one of the guide plate claim 1 , the retaining ring claim 1 , or the swirler are formed using investment casting.3. The swirler assembly of claim 1 , wherein the axial protrusion of the retaining element comprises an angular shape claim 1 , a circular shape claim 1 , or a pin shape.4. A gas turbine engine comprising:a combustor;a fuel nozzle configured to deliver ...

CAST PLATE HEAT EXCHANGER WITH TAPERED WALLS

In a featured embodiment, a heat exchanger includes a plate including a plate portion having outer walls. A plurality of internal passages extend between end portions. A ratio between an outer wall cross-sectional thickness at one of the end portions and a cross-sectional wall thickness of the outer wall within the plate portion is greater than 2.5 and no more than 10. An inlet manifold is attached to the inlet end. An outlet manifold is attached to the outlet end. 1. A heat exchanger comprising:a plate including a plate portion having outer walls, a plurality of internal passages extending between end portions, wherein a ratio between an outer wall cross-sectional thickness at one of the end portions and a cross-sectional wall thickness of the outer wall within the plate portion is greater than 2.5 and no more than 10;an inlet manifold attached to the inlet end; andan outlet manifold attached to the outlet end.2. The heat exchanger as recited in claim 1 , wherein the end portions includes a face surrounded by peripheral walls and the peripheral walls define the outer wall cross-sectional thickness at one of the end portions.3. The heat exchanger as recited in claim 2 , wherein the plate portion includes a plate width between a leading edge and a trailing edge and an end width between outer surfaces of the peripheral walls in same direction as the plate width is greater than the plate width.4. The heat exchanger as recited in claim 3 , including a tapered transition between the plate portion and at least one of the end portions claim 3 , wherein the tapered transition includes an increasing wall thickness in a direction from the plate portion toward the at least one of the end portions.5. The heat exchanger as recited in claim 4 , wherein the leading edge includes a contour that extends into the tapered transition.6. The heat exchanger as recited in claim 5 , wherein a plate thickness is less than an end portion thickness.7. The heat exchanger as recited in claim 2 ...

HYDROSTATIC NON-CONTACT SEAL WITH VARIED THICKNESS BEAMS

A non-contact seal assembly includes a plurality of seal shoes arranged about a centerline in an annular array. The seal shoes include a first seal shoe extending axially along the centerline between a first shoe end and a second shoe end. A seal base circumscribes the annular array of the seal shoes. The assembly also includes 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. Each of the spring elements comprises a first beam having a first beam thickness and a second beam thickness, where the first and second beam thicknesses are different. 1. A non-contact seal assembly , comprising: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; anda plurality of spring elements, each of the spring elements radially between and connecting a respective one of the seal shoes with the seal base, each of the spring elements comprising a first beam having a first beam thickness and a second beam thickness, where the first and second beam thicknesses are different.2. The non-contact seal assembly of claim 1 , where the first beam and the second beam are curved.3. The non-contact seal assembly of claim 1 , where the first beam and the second beam are straight.4. The non-contact seal assembly of claim 1 , where the first beam has a constant first beam thickness and the second beam has a constant second beam thickness.5. The non-contact seal assembly of claim 1 , further comprising a third beam between the first beam and the second beam claim 1 , where the first claim 1 , second and third beams each have a tapered thickness.6. The non-contact seal assembly of claim 1 , further comprising a third beam between the first beam and the second beam claim 1 , where the first and ...

Axial-radial cooling slots on inner air seal

An air seal may comprise an annular ring defined by at least a proximal surface, a distal surface, an aft side and a forward side. A channel may be disposed in the forward side of the air seal and/or the aft side of the air seal and may extend between the proximal surface and the distal surface. An additional channel extending from at least one of the forward side or the aft side may be disposed in the distal surface. The channel and the additional channel may be circumferentially in line. The channels may define a flow path for direction cooling air from a proximal side of the air seal to a distal side of the air seal. The radial channel may interface with the axial channel at an edge of the air seal.

Hydrostatic non-contact seal with varied thickness beams

A non-contact seal assembly (28) includes a plurality of seal shoes (54) arranged about a centerline (22) in an annular array. The seal shoes (54) include a first seal shoe (54) extending axially along the centerline (22) between a first shoe end (70) and a second shoe end (72). A seal base (52) circumscribes the annular array of the seal shoes (54). The assembly (28) also includes a plurality of spring elements (56), each of the spring elements (56) radially between and connecting a respective one of the seal shoes (54) with the seal base (52). Each of the spring elements (56) comprises a first beam (86a; 86d) having a first beam thickness and a second beam (86c; 86f) having a second beam thickness, where the first and second beam thicknesses are different.

Cast plate heat exchanger with tapered walls

In a featured embodiment, a heat exchanger includes a plate including a plate portion having outer walls. A plurality of internal passages extend between end portions. A ratio between an outer wall cross-sectional thickness at one of the end portions and a cross-sectional wall thickness of the outer wall within the plate portion is greater than 2.5 and no more than 10. An inlet manifold is attached to the inlet end. An outlet manifold is attached to the outlet end.

Axial-radial cooling slots on inner air seal