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公开(公告)号：US20240337196A1
公开(公告)日：2024-10-10
申请号：US18603682
申请日：2024-03-13
发明人： Hisataka FUKUSHIMA , Ei KADOKURA
摘要： A steam turbine according to at least one embodiment of the present disclosure, includes: a first rotor blade disposed in an outer periphery of a rotor; and a stator vane adjacent to the first rotor blade on a downstream side in an axial direction of the rotor. The stator vane has a stator vane airfoil portion, a tip-side wall surface located on a tip side of the stator vane airfoil portion, and a hub-side wall surface located on a hub side of the stator vane airfoil portion. The tip-side wall surface is inclined to approach a central axis of the rotor toward the downstream side in the axial direction.
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公开(公告)号：US20240293964A1
公开(公告)日：2024-09-05
申请号：US18573041
申请日：2021-06-22
申请人： NIKON CORPORTION
发明人： Go ICHINOSE
CPC分类号： B29C45/263 , F01D5/141 , B29L2031/082 , F05D2250/711 , F05D2300/608
摘要： A mold used to mold a molded product includes a mold surface that contacts a material, a plurality of convex structures are formed on the mold surface, at least one of a corner part of a first convex structure among the plurality of convex structures and a boundary part between adjacent first and second convex structures among the plurality of convex structures includes a curved surface, in a case where a radius of curvature of the curved surface included in at least one of the corner part and the boundary part is R, a pitch of the convex structures is P, and a height of the convex structures is H, a condition “1 micrometer
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公开(公告)号：US12078189B2
公开(公告)日：2024-09-03
申请号：US17884167
申请日：2022-08-09
发明人： Jason Nichols , David Batch , Daniel Poick
CPC分类号： F04D29/563 , F01D5/141 , F01D5/147 , F01D9/041 , F01D17/162 , F04D29/547 , F01D7/00 , F05D2240/12 , F05D2240/128
摘要： A gas turbine engine apparatus includes an engine flowpath, a protuberance and a variable vane. The protuberance projects into the engine flowpath. The variable vane extends across the engine flowpath. The variable vane includes a pivot axis and an airfoil. The variable vane is configured to pivot about the pivot axis between a first position and a second position. The airfoil extends spanwise along a span line between a first end and a second end. The airfoil extends chordwise along a chord line between a leading edge and a trailing edge. A recess extends spanwise into the airfoil from the first end. The airfoil, at the first end, is spaced from the protuberance when the variable vane is in the first position. The airfoil, at the first end, is aligned with the protuberance and the protuberance projects into the recess when the variable vane is in the second position.
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公开(公告)号：US12065946B2
公开(公告)日：2024-08-20
申请号：US18142577
申请日：2023-05-02
发明人： Thomas Earl Dyson , Nicholas William Rathay , Brendon James Leary , Gregory Terrence Garay , Gustavo Adolfo Ledezma , David Wayne Weber , Aaron Ezekiel Smith
CPC分类号： F01D5/187 , F01D5/141 , F01D5/20 , F01D5/3007 , F05D2220/323 , F05D2240/307 , F05D2260/201 , F05D2260/202 , F05D2260/205
摘要： An airfoil includes a body, a cooling passage, a first cooling cavity, a second cooling cavity, a cooling conduit, and a connecting conduit. The body defines an interior and includes a tip rail with an exterior surface extending between a first surface, a second surface, and a third surface. The cooling passage is formed within the interior. The first cooling cavity and the second cooling cavity are spaced from each other within the tip rail. The cooling conduit fluidly couples the cooling passage with the first cooling cavity. The connecting conduit fluidly couples the first cooling cavity to the second cooling cavity.
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公开(公告)号：US20240271593A1
公开(公告)日：2024-08-15
申请号：US18440364
申请日：2024-02-13
申请人： Vincent Loccisano
发明人： Vincent Loccisano
IPC分类号： F01D5/14
CPC分类号： F01D5/141 , F05D2240/303 , F05D2240/304 , F05D2260/22141 , F05D2300/612
摘要： A shrouded fluid turbine comprises annular airfoils (called shrouds) that are coaxial with and surround a rotor of a fluid turbine. A Mixer Ejector Wind Turbine consists of a turbine shroud that is engaged with a rotor. The rotor is rotationally engaged with a nacelle that houses electrical-generation equipment. The turbine shroud is engaged with support members that are engaged with an ejector shroud. At least one inflated annular tube is surrounded by an annular array of support members, which in turn is covered by a membrane, forming the annular airfoils that make up the turbine shroud and ejector shroud.
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公开(公告)号：US12060809B2
公开(公告)日：2024-08-13
申请号：US17617749
申请日：2020-06-12
发明人： Maxime Paul Numa Givert , Christophe Damour , Alexandre Gimel , Elsa Maxime , Denis Gabriel Trahot
CPC分类号： F01D5/141 , F01D5/22 , F05D2220/323 , F05D2240/30 , F05D2260/96
摘要： A turbine engine has a blade with lower and upper surfaces. The blade has a root at a radially external end and includes a transverse head section in a plane perpendicular to a radial direction of the blade, taken at the radially external end with a first center of gravity. The root has a second center of gravity defined in a plane parallel to the transverse head section and transversely offset from the first center of gravity. The second center of gravity is defined in a predetermined zone at least partly demarcated by a V that is open towards the lower surface and includes a peak, the orthogonal projection of which on the transverse head section is located on the first center of gravity.
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公开(公告)号：US20240254882A1
公开(公告)日：2024-08-01
申请号：US18594594
申请日：2024-03-04
发明人： Saurya Ranjan Ray , Francesco Bertini , Lyle Douglas Dailey , Jeffrey D. Clements , Jaikumar Loganathan , Simone Rosa Taddei
IPC分类号： F01D5/14
CPC分类号： F01D5/141 , F05D2240/301 , F05D2240/305 , F05D2240/306 , F05D2250/181 , F05D2250/711 , F05D2250/712
摘要： An airfoil assembly has a platform and an airfoil. The platform has an upstream edge, a downstream edge, and a surface extending between the upstream edge and the downstream edge. At least a portion of the surface extends circumferentially along a surface baseline defined by a constant radial distance from the rotational axis. The airfoil has an outer wall. The outer wall extends between a root and a tip, and between a leading edge and a trialing edge. The airfoil assembly includes a fence provided along the outer wall.
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公开(公告)号：US20240209736A1
公开(公告)日：2024-06-27
申请号：US18541060
申请日：2023-12-15
IPC分类号： F01D5/14
CPC分类号： F01D5/141 , F05D2220/323 , F05D2240/307 , F05D2240/80
摘要： A blade includes a root to be mounted in a slot of plural slots which opens out at an outer periphery of a rotor disk of a movable wheel of a low-pressure turbine of an aeronautical propulsion system, the rotor disk being centered on a longitudinal axis and the slots being circumferentially distributed about the longitudinal axis, the root including a first platform which has a radially outer surface; a shroud including a second platform which has a radially inner surface; and an airfoil extending from the root to the shroud, the airfoil having a leading edge and a trailing edge.
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公开(公告)号：US12006839B2
公开(公告)日：2024-06-11
申请号：US17391228
申请日：2021-08-02
CPC分类号： F01D5/22 , F01D5/141 , F01D5/005 , F01D5/225 , F01D5/3007 , F05D2240/307
摘要： A rotor blade in an embodiment includes: a suction surface side projecting portion projecting from a suction surface on a leading edge side at a blade tip of the blade effective portion; and a pressure surface side projecting portion projecting from a pressure surface on a trailing edge side at the blade tip of the blade effective portion. The suction surface side projecting portion includes: a leading edge side end surface including a contact surface that comes into contact with the pressure surface side projecting portion of the adjacent rotor blade and a non-contact surface that does not come into contact with the pressure surface side projecting portion of the adjacent rotor blade during rotation; a groove portion formed from the non-contact surface to the trailing edge side; and a joining member joined to the groove portion, the joining member being formed of an erosion-resistance material.
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公开(公告)号：US12000303B2
公开(公告)日：2024-06-04
申请号：US18039611
申请日：2021-11-29
发明人： Carole Onja Rakotoarisoa , Teddy Fixy , Guillaume Pascal Jean-Charles Gondre , Julien Paul Schneider-Die-Gross
CPC分类号： F01D5/147 , F01D5/141 , F01D5/282 , F05D2240/303 , F05D2300/6034
摘要： The invention relates to a fan blade (3) made of composite material the fibrous reinforcement of which comprises first strands (12) having a first stiffness, second strands (13) having a second stiffness and third strands (14) having a third stiffness lower than the first stiffness and greater than the second stiffness, the blade comprising a first portion (15) comprising only first strands (12), a second portion (16) comprising only second strands (13) and a third portion (17) which is located between the first and second portions (15, 16) and which comprises both first, second and third strands (12, 13, 14); there is a gradual transition of properties at the interface between the different portions (15, 16, 17).
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