-
公开(公告)号：US20240358205A1
公开(公告)日：2024-10-31
申请号：US18680262
申请日：2024-05-31
Applicant: Samsung Electronics Co., Ltd.
Inventor： Masayuki TAKADA , Minoru YOSHIDA
CPC classification number: A47L5/28 , F04D29/30 , F04D29/384 , F05D2240/303
Abstract: A cleaner includes an impeller generating a suction force within the cleaner, in an airflow direction, a base portion having an increasing diameter in the airflow direction, and blades each protruding from the base portion, in a direction opposite to the airflow direction, and tilted backward in a direction opposite to the rotational direction. A wind-cutting edge of the blades faces the airflow direction and includes a proximal end closest to the boss portion along the radial direction and meeting the base portion, a protruding end furthest from the boss portion along the radial direction and spaced apart from the base portion along the airflow direction, a protruding curved portion convexly curved in the rotational direction, and a recessed curved portion concavely curved in the direction opposite to the rotational direction, the recessed curved portion being closer to the protruding end than the protruding curved portion.
-
公开(公告)号：US20240318660A1
公开(公告)日：2024-09-26
申请号：US18678303
申请日：2024-05-30
Applicant: General Electric Company
Inventor： Jixian Yao , Trevor Howard Wood , Kishore Ramakrishnan , William Joseph Solomon , Giridhar Jothiprasad , Aaron J. King
CPC classification number: F04D29/384 , F04D19/002
Abstract: A turbomachine includes an annular casing, a fan disposed inside the annular casing and mounted for rotation about an axial centerline, and an airfoil. The fan includes fan blades that extend radially outwardly toward the annular casing. The airfoil includes a first side and a second side coupled together at a leading edge and a trailing edge, a plurality of first chord sections defining at least one first chord length, and a plurality of second chord sections defining at least one second chord length. The plurality of first chord sections and second chord sections define a waveform along a leading edge of the airfoil. The fan has an average chord fan width according to a first performance factor. The fan has a quantity of fan blades according to a second performance factor.
-
公开(公告)号：US12078187B2
公开(公告)日：2024-09-03
申请号：US17292450
申请日：2018-12-26
Applicant: Mitsubishi Electric Corporation
Inventor： Shota Morikawa , Tomoya Fukui , Koyuki Nagashima , Takashi Ikeda
CPC classification number: F04D29/384 , F04D29/325 , F04D29/522
Abstract: An impeller includes a boss provided on a rotation axis and a blade provided on an outer circumferential side of the boss. The blade has a radially middle portion that is located midway between an outer circumferential edge and an inner circumferential edge in a radial direction of the blade from the rotation axis. A span-direction section of part of the blade that adjoins the leading edge is shaped such that part of a suction side of the blade that is located in an area between the radially middle portion and the outer circumferential edge is concave, and a span-direction section of part of the blade that adjoins the trailing edge is shaped such that part of the suction side of the blade that is located in the area between the radially middle portion and the outer circumferential edge is convex.
-
公开(公告)号：US20240288003A1
公开(公告)日：2024-08-29
申请号：US18656078
申请日：2024-05-06
Applicant: General Electric Company
Inventor： Jixian Yao , Trevor Howard Wood , Kishore Ramakrishnan , William Joseph Solomon , Giridhar Jothiprasad , Nicholas Joseph Kray
CPC classification number: F04D29/384 , F04D19/002
Abstract: A turbomachine includes an annular casing and a fan disposed inside the annular casing and mounted for rotation about an axial centerline. The fan includes fan blades that extend radially outwardly toward the annular casing. The fan blades include a first fan blade having a fan blade airfoil body and a metal edge. The fan blade airfoil body has a leading edge. The metal edge is located at the leading edge and has a plurality of fail-fuse elements. The fan has an average chord fan width according to a first performance factor. The fan has a quantity of fan blades according to a second performance factor.
-
公开(公告)号：US12025148B2
公开(公告)日：2024-07-02
申请号：US18152861
申请日：2023-01-11
Applicant: DENSO CORPORATION
Inventor： Fumiya Ishii , Syuzou Oda , Syoichi Imahigashi
CPC classification number: F04D29/326 , F04D29/281 , F04D29/384
Abstract: Each of a plurality of blades of a turbofan includes a thick wall portion, a thin wall portion and a stepped portion. The stepped portion is formed between the thick wall portion and the thin wall portion. A plate thickness of the stepped portion is progressively decreased toward a positive pressure surface of the blade in a direction that is directed from the thick wall portion toward the thin wall portion. In the blade, a first curved surface forms a negative pressure surface of the thick wall portion, and a second curved surface forms a negative pressure surface of the thin wall portion while the second curved surface is located on a side of the first curved surface where the positive pressure surface of the blade is placed, and a negative pressure surface of the stepped portion connects between the first curved surface and the second curved surface.
-
Patent Agency Ranking
公开(公告)号：US11982287B2
公开(公告)日：2024-05-14
申请号：US18273051
申请日：2022-01-27
Applicant: Hanon Systems
Inventor： Cheolun Park , Jun Ho Kim , Ok Ryul Min , Sang Hyun Lee
CPC classification number: F04D29/384 , F04D29/329 , F04D29/66
Abstract: The present invention relates to a fan shroud provided in a cooling module, and an object of the present invention is to provide a fan shroud having a peripheral part configured to surround an outer periphery of a fan, and a planar part coupled to face a heat exchanger, in which a noise-reducing hole is formed at an appropriate position and defined by connecting a first hole, which extends in a circumferential direction of the peripheral part, and a second hole, which extends toward the planar part and is formed through the planar part, thereby effectively reducing BPF noise while minimizing deterioration in rigidity and durability of the fan shroud.
-
公开(公告)号：US11933315B2
公开(公告)日：2024-03-19
申请号：US17844385
申请日：2022-06-20
Applicant: SANYO DENKI CO., LTD.
Inventor： Yoshihisa Yamazaki
CPC classification number: F04D29/384 , F04D29/325
Abstract: Provided is an axial fan including: a motor; and an impeller for sending air in an air-blowing direction, wherein the impeller includes: a base covering the motor; and plural blades mounted on an outer peripheral surface of the base, a wind receiving surface of the blade includes a concave portion recessed toward a downstream side in the air-blowing direction, a bottom point of the concave portion is located downstream in the air-blowing direction relative to a first imaginary line perpendicular to the air-blowing direction, the first imaginary line being drawn in a radial direction from a joint position of the blade where the wind receiving surface and the outer peripheral surface of the base merge, and the bottom point is displaced from inward to outward in the radial direction, in going from upstream to downstream in the air-blowing direction, until reaching a radially central part of the blade.
-
公开(公告)号：US20240084816A1
公开(公告)日：2024-03-14
申请号：US18273051
申请日：2022-01-27
Applicant: Hanon Systems
Inventor： Cheolun PARK , Jun Ho KIM , Ok Ryul MIN , Sang Hyun LEE
CPC classification number: F04D29/384 , F04D29/329 , F04D29/66
Abstract: The present invention relates to a fan shroud provided in a cooling module, and an object of the present invention is to provide a fan shroud having a peripheral part configured to surround an outer periphery of a fan, and a planar part coupled to face a heat exchanger, in which a noise-reducing hole is formed at an appropriate position and defined by connecting a first hole, which extends in a circumferential direction of the peripheral part, and a second hole, which extends toward the planar part and is formed through the planar part, thereby effectively reducing BPF noise while minimizing deterioration in rigidity and durability of the fan shroud.
-
公开(公告)号：US20240077086A1
公开(公告)日：2024-03-07
申请号：US18307117
申请日：2023-04-26
Applicant: Hunter Fan Company
Inventor： Phillip Santolucito , Agustin Chacon
CPC classification number: F04D29/646 , F04D25/06 , F04D25/0613 , F04D25/088 , F04D29/329 , F04D29/34 , F04D29/384 , F04D29/388 , F04D25/0693 , F05D2240/301
Abstract: 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：US11873818B2
公开(公告)日：2024-01-16
申请号：US17472785
申请日：2021-09-13
Applicant: LG ELECTRONICS INC.
Inventor： Seungdeok Yang , Jaehyuk Jung , Seokho Choi
CPC classification number: F04D25/088 , F04D29/384 , F05D2240/301 , F05D2240/305 , F05D2240/307 , F05D2250/38
Abstract: A ceiling fan may include a column; a hub case coupled to the column and rotatable with respect to the column; and a plurality of blades disposed at the hub case, and arranged radially around the column. Each blade may include a lower blade having a first side coupled to the hub case and a second side, opposite to the first side, directed radially outwardly; an upper blade spaced apart from the lower blade, and having a first side coupled to the hub case and a second side, opposite to the first side, directed radially outwardly; and an air gap disposed between the lower blade and the upper blade. The blade may be formed as a tandem blade, thereby generating a greater lift force than a blade having one positive pressure surface and one negative pressure surface, such that an air volume may increase at a same power output.
-
-
-
-
-
-
-
-
-
Search Results
1176
records
(took 0.021 seconds)
