Abstract: A nozzle segment includes an inner band, an outer band, and at least one nozzle vane extending between the inner and outer bands. The outer band includes a hook that extends radially outwardly from an outer surface. The hook is oriented to couple to a support within different first and second turbine engines. The hook extends circumferentially across the outer surface and includes slots defined therein. A first slot includes a first circumferential load surface, and a second slot includes a second circumferential load surface. When the nozzle segment is coupled within the first turbine engine, the first circumferential load surface engages an anti-rotation element while the second circumferential load surface does not engage an anti-rotation element. When the nozzle segment is coupled within the second turbine engine, the second circumferential load surface engages an anti-rotation element while the first circumferential load surface does not engage an anti-rotation element.

Abstract: A gas turbine engine turbine has a high pressure turbine configured to rotate with a high pressure compressor as a high pressure spool in a first direction about a central axis and a low pressure turbine configured to rotate with a low pressure compressor as a low pressure spool in the first direction about the central axis. A power density is greater than or equal to about 1.5 and less than or equal to about 5.5 lbf/cubic inches. A fan is connected to the low pressure spool via a speed changing mechanism and rotates in the first direction.

Abstract: A nozzle module includes a nozzle body having a blade shape in a cross section and extending in a radial direction, and a platform member integrally connected to each end portion of the nozzle body in the radial direction. The platform member includes a first portion formed on a first side in an axial direction in which a central axis extends, and having a pair of first side surfaces extending in the axial direction, when viewed in the radial direction, and a second portion formed to extend to a second side in the axial direction with respect to the first portion, and having a second side surface extending obliquely with respect to the first side surface, when viewed in the radial direction.

Abstract: A gas turbine engine having a rotor blade stage with a plurality of circumferentially spaced rotors, a nozzle stage adjacent the rotor blade stage and including an outer nozzle end, at least one stop, and a shroud. The shroud having a forward end positioned radially outward from the circumferentially spaced rotor blades, and an aft end axially aft of the forward end. The at least one stop confronting at least a portion of the outer nozzle end.

Abstract: The present invention relates to a method for obtaining a solid blade of a turbomachine, comprising a core, a tip and a root, the method comprising: —a step of producing a blank from at least two parts (50, 51), at least one of which is a solid part, the at least two parts being assembled by a diffusions connection technique and without melting, and—a step of machining this blank in order to produce a blade with a defined profile.

Abstract: Disclosed is a compressor of a dual-flow aircraft turboshaft engine extending longitudinally along an axis X, the compressor comprising a low-pressure compressor, a high-pressure compressor and an intermediate casing axially connecting the low-pressure compressor and the high-pressure compressor, the high-pressure compressor comprising an inlet guide stator comprising a retaining ring, an outer high-pressure compressor casing and a plurality of vanes, the compressor comprising an immobilising device comprising at least one first member secured to the intermediate casing and at least one second member secured to the retaining ring and configured to cooperate with the first member in order to prevent tangential movement while allowing axial movement and radial movement of the retaining ring relative to the intermediate casing according to the axis X.

Abstract: An assembly for a turbine engine can include a monolithic body with an inner band and an outer band radially spaced from the inner band, a pocket surface in one of the inner or outer bands defining a recess, and an airfoil with a first end radially extending from the other of the inner or outer bands.

Abstract: Flow path assemblies for gas turbine engines are provided. For example, a flow path assembly comprises an inner wall; a unitary outer wall; and a plurality of nozzle airfoils having an inner end radially opposite an outer end. The unitary outer wall defines a plurality of outer pockets each configured for receipt of the outer end of one of the nozzle airfoils, and the inner wall includes defines a plurality of inner pockets each configured for receipt of the inner end of one of the plurality of nozzle airfoils. A portion of each inner pocket is defined by a forward inner wall segment and an aft inner wall segment. In another embodiment, a flow path assembly comprises an inner wall defining a plurality of bayonet slots that each receive a bayonet included with each of a plurality of nozzle airfoils that are integral with a unitary outer wall.

Abstract: A flexible seal for sealing between two adjacent gas turbine components includes a forward end, an aft end axially separated from the forward end, and an intermediate portion between the forward end and the aft end. The intermediate portion defines a continuous curve in the circumferential direction, such that the aft end is circumferentially offset from the forward end. In other cases, the forward and aft ends are axially, radially, and circumferentially offset from one another. A method of sealing using the flexible seal includes inserting, in an axial direction, the aft end of the flexible seal into a recess defined by respective seal slots of two adjacent gas turbine components; and pushing the flexible seal in an axial direction through the recess until the forward end is disposed within the recess.

Abstract: A gas turbine engine including a frame assembly; a turbine assembly; and a nozzle disposed in the turbine assembly, wherein the nozzle defines an inner end along a radial direction and an outer end along the radial direction, wherein the outer end of the nozzle is supported by the frame assembly, wherein the inner end of the nozzle is supported by the frame assembly, and wherein the inner end of the nozzle is displaceable relative to the frame assembly in at least the radial direction.

Abstract: A vane arc segment includes an airfoil fairing that has first and second platforms and an airfoil section. The platforms have first and second openings that open into the airfoil section. The platforms each define first and second circumferential mate faces, forward and aft sides, a gaspath side, a non-gaspath side. The first platform has a first flange that projects radially from the non-gaspath side aft of the first opening and a second flange that projects radially from the non-gaspath side forward of the first opening. The first and second flanges are exclusive flanges on the first platform. The second platform has a third flange that projects radially from the non-gaspath side aft of the second opening.

Abstract: A system includes an exhaust collector tunnel (32) configured to mount inside an exhaust collector (30) of a gas turbine (12). The exhaust collector tunnel (32) has a tunnel wall (33) configured to extend around a turbine shaft (17, 19) of the gas turbine (12). The tunnel wall (33) has a variable diameter (98) along at least a portion of a length of the exhaust collector tunnel (32).

Abstract: In a gas turbine engine, coolant (e.g., cooling air) is prone to leak out of the interface between the combustor case, the nozzle of the turbine, and the exhaust diffuser. Embodiments of an interface are disclosed that provide non-fretting sealing using an interference fit between radially facing surfaces of a combustor flange and diffuser flange. In addition, one or more contact sealing lands may be used between the combustor flange and diffuser flange and one or more seals may be provided between various components of the interface to provide additional sealing.

Abstract: A nozzle for a turbine system includes an airfoil, an inner sidewall, and an outer sidewall. Each of the inner sidewall and outer sidewall includes a peripheral edge defining a pressure side slash face, a suction side slash face, a leading edge face, and a trailing edge face. At least one of the inner sidewall pressure side slash face, the inner sidewall suction side slash face, the outer sidewall pressure side slash face, or the outer sidewall suction side slash face includes a first swept surface extending at a first angle relative to a nominal slash face angle and a second swept surface extending at a second angle relative to the nominal slash face angle. The first and second swept surfaces meet at an arc having a peak that is circumferentially aligned with a stiffening member extending circumferentially on a respective sidewall.

Abstract: A turbine engine for an aircraft can includes a casing. The casing can be a fan casing surrounding a fan assembly for drawing air into the turbine engine. The fan casing can have a peripheral wall. A surface cooler can be provided in the turbine engine confronting the peripheral wall of the fan casing. The surface cooler can have a mounting bracket for mounting the surface cooler to the fan casing.

Abstract: A turbine vane and a gas turbine including the same are provided. The turbine vane including an airfoil; an outer shroud formed at a top of the airfoil; and an inner shroud including a stress canceling part formed at a bottom of the airfoil and configured to cancel a stress applied to the airfoil by flowing combustion gas.

Abstract: A flange includes a flange body and a scallop feature. The flange body is annularly disposed about a longitudinal axis. The flange body includes a first radial side and a second radial side radially opposite the first radial side. The flange body defines a first fastener hole and a circumferentially adjacent second fastener hole. Each of the first fastener hole and the second fastener hole are formed through the flange body. The scallop feature is formed through the flange body and disposed circumferentially between the first and second fastener holes. The scallop feature extends radially from the first radial side through at least a portion of the flange body. The scallop feature includes a first side and a second side, parallel to the first side.

Abstract: The present disclosure is related to turbine vane assemblies comprising ceramic matrix composite materials. The turbine vane assemblies further including reinforcements that strengthen joints in the turbine vane assemblies.

Abstract: A vane arc segment includes an airfoil wall that defines first and second fairing platforms and a hollow airfoil section. A spar leg extends through the hollow airfoil section and has an end portion that protrudes from the hollow airfoil section. The spar leg is spaced from the airfoil wall in the hollow airfoil section such that there is a first gap. There is a support platform adjacent the second airfoil fairing and a second gap therebetween. A baffle is disposed in the first gap and is spaced apart from the airfoil wall and the spar leg so as to divide the first gap into a plenum space between the spar leg and the baffle and an impingement space between the baffle and the airfoil wall. A seal is disposed between the airfoil wall and the spar leg to seal the impingement space from the second gap.

Abstract: An improved stator assembly for use in a gas-turbine engine is disclosed. The stator assembly may comprise a vane, an inner diameter (ID) ring, an outer diameter (OD) ring, a vane disposed between the ID ring and the OD ring, a potting component coupling the vane to at least one of the OD ring or the ID ring, and a potting embedded component disposed within the potting component. The potting embedded component may prevent disbond of the potting component during operation of the gas-turbine engine.

Abstract: An outlet guide vane for a fan of a turbomachine is provided. The outlet guide vane includes a blade made of composite material and having a radial inner end, a first metal fastener portion fastened to the radial inner end, a first platform extending transversely with respect to the blade in the vicinity of the radial inner end. The first metal fastener portion is to be mounted on and fastened to an upstream flange and to a downstream flange of a hub. The first platform is monolithic with the first metal fastener portion or with the blade. A rectifier wheel and a turbomachine including the outlet guide vane are also provided.

Abstract: A gas turbine engine component includes a vane arc segment that defines an axis. The vane arc segment includes an airfoil section and first and second platforms. The airfoil section has a first radial end, a second radial end, a first side, a second side, a leading edge, and a trailing edge. The airfoil section has associated characteristics, including a center of pressure and an aerodynamic load vector through the center of pressure. The first platform defines a first side chevron face that has a leading leg and a trailing leg that meet at an angle. The leading leg is elongated along a centerline that is non-axially oriented with respect to the axis, the leading leg meets the leading face at a leading first side corner. The leading first side corner is located outside of the aerodynamic load vector relative to the leading edge of the airfoil section.

Abstract: A stator attachment system couples a stator to a compressor case that is split to define a first half and a second half. The stator attachment system includes a plurality of retention slots defined in each of the first half and the second half of the compressor case. The plurality of retention slots is spaced apart about a perimeter of the first half and the second half such that at least one of the plurality of retention slots associated with the first half is vertically aligned with at least one of the plurality of retention slots associated with the second half. The stator attachment system includes a plurality of tabs defined on the stator that extend radially outward from the stator. Each of the plurality of tabs is configured to engage with one of the plurality of retention slots to couple the stator to the compressor case.

Abstract: A steam turbine assembling method includes an upper half assembling step of, after disposing an upper half partition plate having an upper half partition plate division surface on the inner peripheral side of an upper half casing having an upper half casing division surface, attaching an upper half position defining portion to the upper half casing and the upper half partition plate so as to form an upper half assembly, and a lower half assembling step of disposing a lower half partition plate having a lower half partition plate division surface capable of abutting against the upper half partition plate division surface on an inner peripheral side of a lower half casing having a lower half casing division surface capable of abutting against the upper half casing division surface so as to form a lower half assembly.

Abstract: A compressor includes: an upper half casing having upper half casing parting planes; upper half diaphragms configured to be disposed on an inner circumferential side of the upper half casing and having upper half diaphragm parting planes; and upper half position regulating parts that regulate positions of the upper half casing and the upper half diaphragms. The upper half position regulating parts are fixed to at least one of the upper half casing and one of the upper half diaphragms, and have upper half abutting members at which upper half abutting surfaces, each of which comes into contact with an upper half casing recessed surface of the upper half casing and an upper half diaphragm recessed surface of the upper half diaphragm, are formed.

Abstract: A vaned ring for a turbomachine stator includes an outer shell, a vane having a vane head, and two platforms arranged circumferentially on either side of the vane head, and fixed on a radially inner face of the outer shell by detachable fasteners. The vane head has first conical seatings bearing on respective second conical seatings of the two platforms so as to prevent a displacement of the vane radially inwards and along the circumferential direction. The vaned ring includes a frangible pin including a base mounted on the outer shell and a head projecting radially inwards with respect to the outer shell and having a head surface forming, vis-à-vis a top surface of the vane head, a stop opposing a displacement of the vane radially outwards.

Abstract: A blade track assembly and methods thereof includes an anti-rotation device having an arcuate body and tabs extending for engagement within an anti-rotation slot of the blade track. The anti-rotation device may be formed to include an annular shape connected at a flange of the casing to reduce spatial requirements while blocking against rotation of the blade track.

Abstract: A turbine exhaust case is provided for a gas turbine engine. This turbine exhaust case includes a first gas turbine engine exhaust case, a second gas turbine engine exhaust case, a strut and a fastener. The second gas turbine engine exhaust case includes a flange and a bracket. The strut is coupled to the first case and the second case. The fastener fastens the flange and the strut. The second gas turbine engine exhaust case is co-axial with the first gas turbine engine exhaust case. The strut contacts the bracket when the engine is powered-on.

Abstract: A containment assembly for use in a turbine engine includes a fan case formed from a composite material. The fan case includes a forward end, an aft end, and an opening defined through the fan case between the forward and aft ends. The containment assembly further includes a structural attachment member formed from a metallic material and coupled to the fan case. The structural attachment member is positioned within the opening in the fan case and is configured to receive at least one fastener to couple a component to the structural attachment member.

Abstract: A gas turbine engine assembly includes a turbine shroud having a carrier segment and adjacent blade track segments. The carrier segment is arranged around a central axis of the gas turbine engine and the blade track segments are supported by the carrier segment. The turbine shroud segment further includes a retainer that is configured to locate the blade track segments radially relative to the central axis of the gas turbine engine.

Abstract: A support device is provided with: a support member having a body disposed in a recess provided in the upper surface of the lower half of an outer member, and a protrusion provided on the body, the protrusion protruding toward the lower half of an inner member from a front surface facing the lower half of the inner member, the protrusion being disposed removably in a hole provided in the lower half of the inner member; a first adjustment member disposed between the bottom surface of the recess and the lower surface, facing the bottom surface, of the body; and an upper liner.

Abstract: A blade outer air seal (BOAS) according to an exemplary aspect of the present disclosure includes, among other things, a ceramic body having a radially inner face and a radially outer face and a retention feature that extends from the radially outer face. The retention feature includes at least one angled hook that extends at a transverse angle relative to the radially outer face.

Abstract: An airfoil includes a core structure and a panel fastened to the core structure. The panel has an exterior, gas path side and an opposed interior side that includes a tab. The core structure includes a hole. The tab of the panel is locked with the hole such that the core structure supports the panel.

Abstract: A turbine nozzle segment includes a radially-inner endwall, a radially-outer endwall, and a pair of airfoil-shaped vanes extending between the radially-inner endwall and the radially-outer endwall. The back face of the radially-inner endwall and/or the back face of the radially-outer endwall has a pocket formed therein in an area between the pressure sidewall of the first vane and the suction sidewall of the second vane to enhance stiffness distribution between the second vane and the radially-inner endwall and/or radially-outer endwall.

Abstract: A device such as a drum for positioning at least one guide blade row from a plurality of guide blade groups in a turbomachine, the device on the outer circumferential side including at least one flange for attachment to a housing section of the turbomachine and on the inner circumferential side including a plurality of uniformly distributed receptacles for accommodating holding elements of the guide blade groups and a plurality of recesses, the device having a depth-reduced inner circumferential section, relative to the accommodating grooves, between at least two adjoining receptacles, which extends in each case from the one receptacle to the other receptacle; a blade-device combination; a method for assembling such a blade-device combination; and a turbomachine.

Abstract: A turbine vane for a gas turbine engine includes an outer platform including a first side spaced circumferentially apart from a second side, a forward end and an aft end. The first side includes a first gusset extending between the forward end and the aft end. The first gusset defines a first radius beginning at the forward end that transitions into an elliptical curve toward the aft end. An inner platform is also included. An airfoil extends between the outer platform and the inner platform. A gas turbine engine is also disclosed.

Abstract: A fastener retention mechanism for retaining fasteners of a stator assembly in a gas turbine engine is provided. The fastener retention mechanism including: a base having a first rail, a second rail, and a base surface extending therebetween, the first rail and second rail being in a facing spaced relationship with respect to each other and define a channel extending therebetween; a cover releasably connected to the base, the cover having a first foot, second foot, and cover surface extending between the first foot and second foot, wherein the first foot and second foot are configured to interlock with the first rail and second rail, respectively, such that the channel is covered by the cover surface when the cover is secured to the base; and wherein the cover is secured to the base by the interlocking of the first foot and second foot with the first rail and second rail.

Abstract: Various embodiments include a steam turbine drum nozzle, along with a related assembly and steam turbine. Particular embodiments include a nozzle having: an airfoil; a radially inner sidewall coupled with a first end of the airfoil; and a radially outer sidewall coupled with a second end of the airfoil, the second end opposing the first end, wherein the radially outer sidewall includes: a first section radially outward of the airfoil; a thinned section coupled with the first section; and a second section coupled with the thinned section radially outward of the airfoil, the second section having a radially outer face and a circumferentially facing side abutting the radially outer face, wherein the second section includes a circumferentially extending slot, and wherein the second section includes a relief slot extending into a body of the second section from the circumferentially facing side.

Abstract: According to one aspect, a rotor structure and method of assembling a rotor structure for rotating machinery include a first rotor portion assembled on a tie bolt in abutment with a stop surface and a fastener assembled on the tie bolt at a second axial location spaced from the first axial location to capture the first rotor portion on the tie bolt between the first and second axial locations. A second rotor portion is secured on the tie bolt in abutment with a second stop surface spaced from the first stop surface.

Abstract: A duct includes an upstream segment and a downstream segment mounted to the upstream segment. A heat shield extends from one of the upstream and downstream segments. A sealing land extends from the other of the upstream and downstream segments, and is configured to engage with the heat shield. The heat shield protects the interface between the upstream and downstream segments of the ducts.

Abstract: A turbomachine includes a sealing segment ring that is provided between a front guide vane row and a back guide vane row for sealing a radial gap between a casing section and a rotor blade row rotating between the guide vane rows, wherein the sealing segment ring has a plurality of identical sealing segments and at least one of the guide vane rows has a plurality of identical guide vane segments, wherein the sealing segments each have a plurality of engagement sites lying adjacent to one another in the peripheral direction for interaction with securing elements of this guide vane row, wherein the engagement sites and securing elements are distributed uniformly over the periphery and the engagement sites are a multiple of the securing elements, a sealing element, and a guide vane segment.

Abstract: A ceramic matrix composite (CMC) seal segment for use in a segmented turbine shroud for radially encasing a turbine in a gas turbine engine. The CMC seal segment comprises an arcuate flange having a surface facing the turbine and a portion defining a bore for receiving an elongated pin, with the bore having a length that is at least 70% of the length of the elongated pin received therein. The CMC seal segment is carried by the carrier by at least one of the elongated pins being received within the bore. The CMC seal segment portion defining a pin-receiving bore is radially spaced from the arcuate flange by a spacing flange extending radially outward from the arcuate flange.

Abstract: Vane assemblies for gas turbine engines and methods for assembling vane assemblies are disclosed. The vane assemblies may include at least one shroud having at least one vane-receiving portion, at least one vane having at least one end portion received in the vane-receiving portion, and at least one sealing member having an uncompressed cross-section that is substantially circular. The sealing member(s) are disposed between and in contact with the end portion of the vane and the vane-receiving portion of the shroud.

Abstract: A fan housing of a ram air fan assembly is provided including a flange having at least one tab. The at least one tab includes a first portion extending generally perpendicularly from the flange and a second portion extending generally parallel to the flange. A notch is formed by an inclined surface and a curved surface at an intersection between the first portion and the second portion. The second portion is elongated and extends about 0.020 inches beyond a front surface of the first portion.

Abstract: A method of joining two components using additive manufacturing is provided. The method includes forming a first component made of a first material; forming an interlocking transition zone from the first material and a second material; and forming a second component made of the second material. The interlocking transition zone includes a plurality of projections alternately extending from the first component and the second component, respectively, to undetachably couple the first component and the second component.

Abstract: An exemplary nozzle ring has two fastening rings and a plurality of guide vanes, wherein holes are provided in one of the fastening rings for accommodating pins of the guide vanes, and openings are provided in the other fastening ring for accommodating positioning aids on the guide vanes.

Abstract: A vane carrier assembly is provided for supporting vanes within a main engine casing of a gas turbine engine. The vane carrier assembly comprises a plurality of vane support panels positioned adjacent to one another so as to define a vane support assembly. The support panels are assembled such that the support panels expand circumferentially to minimize radial expansion of the vane support assembly during operation of the gas turbine engine. A control ring is coupled to the main engine casing, and the vane support assembly is coupled to the control ring. The control ring may be formed from a material having a coefficient of thermal expansion less than that of the material from which the vane support assembly is formed.

Abstract: An adapting part is designed to be held on a casing of a turbo-engine, partially covering the casing. The adapting part includes, in the extension of one of its axial ends, a first connector to engage with a first complementary connector associated with the casing to form a sliding connection. The adapting part also includes, at its other axial end, a second connector to be secured to a second complementary connector associated with the casing to form a rigid connection.

Abstract: A component support of the turbomachine, in particular an aircraft engine, is described, which includes at least two essentially annular components on the stator side, which are in axial contact with each other and are preferably oriented coaxially to the machine axis, the first component having a plurality of radial, groove-like recesses, which are laterally overlapped by the second component with its projection-like bearing sections, and an uncontoured support ring surface section being provided between the adjacent bearing sections, a turbomachine also being described.

Abstract: A support block for a steam turbine casing, a related assembly and apparatus. Various embodiments include a steam turbine casing support block having: a body portion sized to substantially fill a pocket in a steam turbine casing, the body portion having a greater length than a depth or a width; a set of tabs extending from the body portion, each of the set of tabs sized to substantially fill a corresponding slot in the steam turbine casing, wherein the set of tabs are located at a radially outwardly facing wall of the body portion; and a pin hole on a bottom surface of the body portion for receiving a retaining member.