公开(公告)号：US20240141917A1

公开(公告)日：2024-05-02

申请号：US18278999

申请日：2022-02-24

申请人： Safran Aircraft Engines

发明人： Vincent JOUDON

IPC分类号： F04D29/38 ,  B29C70/24 ,  B29C70/44 ,  F04D29/02 ,  B29L31/08

CPC分类号： F04D29/388 ,  B29C70/24 ,  B29C70/443 ,  F04D29/023 ,  B29L2031/082

摘要： The present invention relates to a blade comprising: a structure of aerodynamic profile comprising two mutually opposite skins; and a spar comprising a fibrous reinforcement obtained by three-dimensional weaving and densified by the matrix, the spar comprising a blade root portion extending outside the structure of aerodynamic profile and an airfoil portion arranged inside the structure of aerodynamic profile between the two skins. Moreover, within the blade root portion, the fibrous reinforcement of the spar comprises a non-debound region and at least two debound regions extending radially from the non-debound region so as to form at least four separate branches.

公开(公告)号：US20240077086A1

公开(公告)日：2024-03-07

申请号：US18307117

申请日：2023-04-26

申请人： Hunter Fan Company

发明人： Phillip Santolucito ,  Agustin Chacon

IPC分类号： F04D29/64 ,  F04D25/06 ,  F04D25/08 ,  F04D29/32 ,  F04D29/34 ,  F04D29/38

CPC分类号： F04D29/646 ,  F04D25/06 ,  F04D25/0613 ,  F04D25/088 ,  F04D29/329 ,  F04D29/34 ,  F04D29/384 ,  F04D29/388 ,  F04D25/0693 ,  F05D2240/301

摘要： A ceiling fan having a motor assembly that can be secured to a structure, for example, by a downrod and a hanger bracket assembly. A light kit can optionally be carried by the motor assembly. The motor assembly can include a housing to which can be integrated or attached to a blade hub. Blades for the ceiling fan can be mounted to the blade hub.

公开(公告)号：US11834954B2

公开(公告)日：2023-12-05

申请号：US17717462

申请日：2022-04-11

申请人： General Electric Company

发明人： David Marion Ostdiek ,  William Joseph Solomon

IPC分类号： B64C11/48 ,  F01D17/10 ,  F01D17/14 ,  F02K3/072 ,  F02K3/065 ,  F02C7/36 ,  F02K3/06 ,  F02C3/107 ,  F04D29/38 ,  F04D19/02 ,  F04D29/34 ,  B64C11/00 ,  F02C6/20 ,  B64C11/18 ,  F02K3/02 ,  F02K1/46 ,  F01D9/02

CPC分类号： F01D17/105 ,  F01D17/14 ,  B64C11/00 ,  B64C11/001 ,  B64C11/18 ,  B64C11/48 ,  F01D9/02 ,  F02C3/107 ,  F02C6/206 ,  F02C7/36 ,  F02K1/46 ,  F02K3/025 ,  F02K3/06 ,  F02K3/065 ,  F02K3/072 ,  F04D19/02 ,  F04D19/024 ,  F04D29/34 ,  F04D29/388 ,  F05D2220/32 ,  F05D2260/606

摘要： A gas turbine is provided, the gas turbine engine including a turbomachine having an inlet splitter defining in part an inlet to a working gas flowpath and a fan duct splitter defining in part an inlet to a fan duct flowpath. The gas turbine engine also includes a primary fan driven by the turbomachine defining a primary fan tip radius R1, a primary fan hub radius R2, and a primary fan specific thrust rating TP; and a secondary fan downstream of the primary fan and driven by the turbomachine, the secondary fan defining a secondary fan tip radius R3, a secondary fan hub radius R4, and a secondary fan specific thrust rating TS; wherein the gas turbine engine defines an Effective Bypass Area, and wherein a ratio of R1 to R3 equals






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公开(公告)号：US20230228279A1

公开(公告)日：2023-07-20

申请号：US18000958

申请日：2021-04-06

申请人： Robert Bosch GmbH

发明人： Ray Cote

IPC分类号： F04D29/32 ,  F04D29/02 ,  F04D29/38

CPC分类号： F04D29/326 ,  F04D29/023 ,  F04D29/388 ,  F05D2230/20

摘要： A fan includes a hub configured to be driven by motor to rotate about a fan rotational axis, blades that protrude radially from the hub and a band that surrounds the rotational axis and connects the tips of the blades. The band includes features that structurally reinforce the knit lines. In some embodiments, the features are thickened regions that protrude from outer surface of the band in a direction away from the hub. A thickened region is disposed between respective tips of each pair of adjacent blades. In some embodiments, the features are structurally—reinforcing ribs that protrude from the hub-facing surface of the band. A rib is disposed between respective tips of each pair of adjacent blades. In some embodiments, the features are both ribs and thickened regions.

公开(公告)号：US11674526B2

公开(公告)日：2023-06-13

申请号：US17933573

申请日：2022-09-20

申请人： Hunter Fan Company

发明人： Phillip Santolucito ,  Agustin Chacon

IPC分类号： F04D29/64 ,  F04D25/08 ,  F04D29/34 ,  F04D29/38 ,  F04D25/06 ,  F04D29/32

CPC分类号： F04D29/646 ,  F04D25/06 ,  F04D25/0613 ,  F04D25/088 ,  F04D29/329 ,  F04D29/34 ,  F04D29/384 ,  F04D29/388 ,  F04D25/0693 ,  F05D2240/301

摘要： A ceiling fan having a dual redundant motor mounting assembly for suspending a motor comprising a downrod, a hollow motor shaft suspending the motor from the downrod, a retaining pin extending through the hollow motor shaft, and a retaining rod coupled to the retainer pin for redundantly suspending the motor.

公开(公告)号：US11649832B2

公开(公告)日：2023-05-16

申请号：US17741933

申请日：2022-05-11

申请人： DELTA ELECTRONICS, INC.

发明人： Shun-Chen Chang ,  Chao-Fu Yang

IPC分类号： F04D29/32 ,  F04D29/58 ,  F04D29/38

CPC分类号： F04D29/329 ,  F04D29/388 ,  F04D29/5853

摘要： A fan impeller includes a hub, a shaft, a metal housing and a plurality of blades. The outer periphery of the hub has a curved surface. The shaft is disposed in the hub and connected to the hub. The metal housing has an annular shape and is disposed in the hub. A magnetic ring is disposed at the inner side of the metal housing. The blades are disposed around the outer periphery of the hub. The blades are projected along an extension direction toward the shaft to define projection areas thereof, and the projection area of a top and a bottom of any one of the blades is partially overlapped with other two adjacent blades. A distance between an outer edge of each blade and a rotational axis of the fan decreases proximate the top of the blade and then increases towards the bottom of the blade.

公开(公告)号：US20190234421A1

公开(公告)日：2019-08-01

申请号：US15925541

申请日：2018-03-19

申请人： Johnson Controls Technology Company

发明人： Stephen C. Wilson ,  John T. Knight

IPC分类号： F04D29/38 ,  F24F11/74 ,  F04D29/66

CPC分类号： F04D29/388 ,  F04D29/667 ,  F05D2240/304 ,  F24F11/74

摘要： A fan blade includes an edge formation disposed on an edge of the fan blade, where the edge formation comprises an incline surface relative to a main portion of the fan blade and a decline surface relative to the main portion of the fan blade, and wherein the incline surface and the decline surface are asymmetric to one another.

公开(公告)号：US20190120252A1

公开(公告)日：2019-04-25

申请号：US16106994

申请日：2018-08-21

申请人： WOLONG ELECTRIC GROUP CO., LTD ,  WOLONG ELECTRIC (JI NAN) MOTOR CO., LTD

发明人： Cunling Wang ,  Xiaofei Liu ,  Liuxi Zhou

IPC分类号： F04D29/66 ,  F04D29/38

CPC分类号： F04D29/664 ,  F04D25/08 ,  F04D29/281 ,  F04D29/30 ,  F04D29/388 ,  F04D29/668 ,  F05D2260/96

摘要： A fan blade structure of a convection fan includes a fan blade body. The fan blade body includes a central disk secured to the rotating shaft of the motor and multiple blades evenly distributed in a circumferential direction of the central disk. The fan blade body further includes an outer edge frame, the outer edge frame is connected to an outmost side of each of the blades in a radial direction of the central disk. The outer edge frame is connected to an outmost side of the blade in the radial direction of the central disk through the outer edge frame, which makes all the outmost sides of all the blades secured to the outer edge frame, thus the stability of the blade is strengthened, blade deformation in harsh environments is avoided, thereby the balance performance of the fan blade is improved, and the vibration or noise is reduced.

公开(公告)号：US20180328372A1

公开(公告)日：2018-11-15

申请号：US15709567

申请日：2017-09-20

申请人： United Technologies Corporation

发明人： Edward J. Gallagher ,  Byron R. Monzon ,  Shari L. Bugaj

IPC分类号： F04D29/02 ,  F02K3/06 ,  F04D29/56 ,  F02C3/06

CPC分类号： F04D29/023 ,  F01D5/147 ,  F01D5/282 ,  F01D15/12 ,  F02C3/06 ,  F02C7/36 ,  F02K1/06 ,  F02K3/06 ,  F04D29/053 ,  F04D29/325 ,  F04D29/388 ,  F04D29/526 ,  F04D29/563 ,  F05D2220/32 ,  F05D2220/323 ,  F05D2220/327 ,  F05D2220/36 ,  F05D2260/4031 ,  F05D2300/603 ,  Y02T50/672

摘要： A gas turbine engine includes a gear assembly and a bypass flow passage that has an inlet. A fan is arranged within the bypass flow passage. A first turbine is coupled with a first shaft, which is coupled with the fan. A second turbine is coupled with a second shaft. The fan includes a hub and a row of fan blades that extend from the hub. The row includes 12 to 14 (N) of the fan blades, a solidity value (R) at tips of the fan blades that is greater than 0.85 and less than 1.1, and a ratio of N/R that is from 9 to 20.

公开(公告)号：US20180283403A1

公开(公告)日：2018-10-04

申请号：US15559670

申请日：2016-04-07

申请人： Horton, Inc.

发明人： Hugh Schilling ,  David R. Hennessy ,  Kevin Cahill

IPC分类号： F04D29/66 ,  F01P5/02 ,  F04D29/38 ,  F04D29/34 ,  F04D25/08

CPC分类号： F04D29/667 ,  F01P5/02 ,  F04D25/08 ,  F04D29/34 ,  F04D29/38 ,  F04D29/384 ,  F04D29/388 ,  F04D29/681 ,  F05D2240/303 ,  F05D2240/305 ,  F05D2240/306 ,  F05D2240/307 ,  F05D2250/71 ,  F05D2260/961

摘要： A fan blade (134) includes a working region (148) having a leading edge (138) and a pressure side (136). A plurality of flow modification features (150-1 to 150-4) are positioned at the working region, including first and second flow modification features (150-1, 150-2, 150-3) each having a wedge shape with a pointed end (152) and a wider end (154), and located on the pressure side. A length of the first flow modification feature is less than a chord length of the fan blade, and the pointed end of the first flow modification feature is spaced from the leading edge. A length of the second flow modification feature is less than the chord length of the fan blade, and the pointed end of the second flow modification feature is spaced from the leading edge. The first and second flow modification features are spaced from each other to define a channel (156) therebetween.