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公开(公告)号：US20180223862A1
公开(公告)日：2018-08-09
申请号：US15944901
申请日：2018-04-04
Applicant: Minebea Mitsumi Inc.
Inventor： Tomoyoshi SASAJIMA , Yukihiro HIGUCHI , Naoya MURAKAMI , Koichi TAKEDA
CPC classification number: F04D29/384 , F04D19/002 , F04D29/325 , F05D2240/305
Abstract: An axial fan comprises an impeller. The impeller comprises a hub and a plurality of blades disposed on an outer circumference of the hub. A pressure surface of each of the blades is at least partially a convex surface bulging from a suction surface side to a pressure surface side. The convex surface is provided within a predetermined region of the pressure surface of the blade on a hub side. The predetermined region is arranged as part of a radial width of the blade.
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公开(公告)号：US10036400B2
公开(公告)日：2018-07-31
申请号：US14268648
申请日：2014-05-02
Applicant: Regal Beloit America, Inc.
Inventor： Rachele B. Cocks , Zachary Stauffer , Rafal Pawel Rohoza
CPC classification number: F04D29/282 , F04D29/281 , F04D29/30 , F04D29/624 , F05D2240/301 , F05D2240/305 , Y02T50/673 , Y10T29/4933
Abstract: A centrifugal fan assembly having an axis of rotation includes an inlet ring, a back plate, and a plurality of blades coupled between the inlet ring and the back plate. At least one blade of the plurality of blades includes a radially inner edge, a radially outer edge, and at least one flow channel extending obliquely therebetween. The at least one flow channel includes an inlet defined on the radially inner edge and an outlet defined on the radially outer edge, wherein the inlet and the outlet are positioned at different axial locations along a length of the blade.
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公开(公告)号：US20180112536A1
公开(公告)日：2018-04-26
申请号：US15334517
申请日：2016-10-26
Applicant: General Electric Company
Inventor： David Wayne Weber , Brendon James Leary
CPC classification number: F01D5/186 , F01D5/187 , F01D9/065 , F05D2220/32 , F05D2240/122 , F05D2240/123 , F05D2240/124 , F05D2240/304 , F05D2240/305 , F05D2240/306 , F05D2260/202
Abstract: A turbine blade airfoil including various internal cavities that are fluidly coupled is disclosed. The airfoil may include a first pressure side cavity positioned adjacent a pressure side of the airfoil. The first pressure side cavity may receive a coolant. The airfoil may also include a second pressure side cavity positioned adjacent to and fluidly coupled to the first pressure side cavity, and at least one channel positioned between and fluidly coupling the first and second pressure side cavities. The channel may be positioned radially between a top surface and a bottom surface of the first and second pressure side cavities. Additionally, the airfoil may include a trailing edge cooling system positioned adjacent a trailing edge and in direct fluid communication with the first pressure side cavity. The trailing edge cooling system may receive a portion of the coolant from the first pressure side cavity.
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公开(公告)号：US09951782B2
公开(公告)日：2018-04-24
申请号：US14413488
申请日：2013-07-30
Applicant: Mitsubishi Electric Corporation
Inventor： Makoto Kurihara , Masahiko Takagi , Takashi Ikeda
CPC classification number: F04D17/10 , F04D29/023 , F04D29/281 , F04D29/30 , F05D2230/232 , F05D2240/305 , F05D2250/291
Abstract: A centrifugal fan includes a main plate that is fixed to the rotational shaft of a fan motor and driven by the fan motor, a shroud having an air inlet, and a plurality of blades disposed between the main plate and the shroud. Each blade includes a main blade set on its suction surface side and a blade cover set on its pressure surface side. The main blade is joined to the main plate and the shroud. The blade cover is joined to the main blade, and is biased toward the main blade under the air pressure during rotation. Thus, the joint force between the main blade and the blade cover is enhanced, thereby enhancing the strength of joint of engagement portions of the blade and reducing abnormal noise generated due to the presence of one or a plurality of gaps formed between the engagement portions.
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公开(公告)号：US20180094644A1
公开(公告)日：2018-04-05
申请号：US15286556
申请日：2016-10-05
Applicant: General Electric Company
Inventor： Prabakaran Modachur Krishnan , Dwight Eric Davidson
CPC classification number: F04D29/544 , F01D5/141 , F02C3/04 , F04D29/324 , F04D29/384 , F05D2220/3216 , F05D2240/123 , F05D2240/124 , F05D2240/305 , F05D2240/306 , F05D2250/74
Abstract: A system is provided, including an airfoil. The airfoil includes a first suction portion of a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z of a suction side as set forth in TABLE I to a maximum of three decimal places, wherein the X and Y values of the suction side are coordinate values that couple together to define suction side sections of the first suction portion of the nominal airfoil profile at each Z coordinate value, the suction side sections of the first suction portion of the nominal airfoil profile are coupled together to define the first suction portion, the airfoil includes an airfoil length along a Z axis, the first suction portion comprises a first portion length along the Z axis, the first portion length is less than or equal to the airfoil length, and the Cartesian coordinate values of X, Y, and Z are non-dimensional values convertible to dimensional distances.
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Patent Agency Ranking
公开(公告)号：US20180087524A1
公开(公告)日：2018-03-29
申请号：US15277576
申请日：2016-09-27
Applicant: GENERAL ELECTRIC COMPANY
Inventor： JOHN DAVID STAMPFLI , NANDAKUMAR ALADAHALLI RANGASWAMY
CPC classification number: F04D29/384 , F01D5/141 , F02C3/04 , F04D29/324 , F04D29/544 , F05D2220/32 , F05D2240/123 , F05D2240/124 , F05D2240/305 , F05D2240/306 , F05D2250/74 , Y02T50/673
Abstract: A system is provided, including an airfoil. The airfoil includes a first suction portion of a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z of a suction side as set forth in TABLE I to a maximum of three decimal places, wherein the X and Y values of the suction side are coordinate values that couple together to define suction side sections of the first suction portion of the nominal airfoil profile at each Z coordinate value, the suction side sections of the first suction portion of the nominal airfoil profile are coupled together to define the first suction portion, the airfoil includes an airfoil length along a Z axis, the first suction portion comprises a first portion length along the Z axis, the first portion length is less than or equal to the airfoil length, and the Cartesian coordinate values of X, Y, and Z are non-dimensional values convertible to dimensional distances.
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公开(公告)号：US20180080459A1
公开(公告)日：2018-03-22
申请号：US15272008
申请日：2016-09-21
Applicant: GENERAL ELECTRIC COMPANY
Inventor： John David Stampfli , John David Dyer
CPC classification number: F02C3/04 , F01D5/141 , F04D29/324 , F04D29/544 , F05D2220/32 , F05D2240/123 , F05D2240/124 , F05D2240/305 , F05D2240/306 , F05D2250/74 , Y02T50/673
Abstract: A system is provided, including an airfoil. The airfoil includes a first suction portion of a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z of a suction side as set forth in TABLE I to a maximum of three decimal places, wherein the X and Y values of the suction side are coordinate values that couple together to define suction side sections of the first suction portion of the nominal airfoil profile at each Z coordinate value, the suction side sections of the first suction portion of the nominal airfoil profile are coupled together to define the first suction portion, the airfoil includes an airfoil length along a Z axis, the first suction portion comprises a first portion length along the Z axis, the first portion length is less than or equal to the airfoil length, and the Cartesian coordinate values of X, Y, and Z are non-dimensional values convertible to dimensional distances.
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公开(公告)号：US20180080327A1
公开(公告)日：2018-03-22
申请号：US15272676
申请日：2016-09-22
Applicant: General Electric Company
Inventor： Marc Edward Blohm , Sharan Shanti
IPC: F01D5/14
CPC classification number: F01D5/141 , F04D29/324 , F04D29/544 , F05D2220/32 , F05D2230/90 , F05D2240/305 , F05D2240/306 , F05D2250/74 , Y02T50/673
Abstract: A system is provided, including an airfoil. The airfoil includes a first suction portion of a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z of a suction side as set forth in TABLE I to a maximum of three decimal places, wherein the X and Y values of the suction side are coordinate values that couple together to define suction side sections of the first suction portion of the nominal airfoil profile at each Z coordinate value, the suction side sections of the first suction portion of the nominal airfoil profile are coupled together to define the first suction portion, the airfoil includes an airfoil length along a Z axis, the first suction portion comprises a first portion length along the Z axis, the first portion length is less than or equal to the airfoil length, and the Cartesian coordinate values of X, Y, and Z are non-dimensional values convertible to dimensional distances.
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公开(公告)号：US20180045053A1
公开(公告)日：2018-02-15
申请号：US15671562
申请日：2017-08-08
Applicant: General Electric Technology GmbH
Inventor： Saeid HAVAKESHIAN , Krzysztof CHEREK
CPC classification number: F01D1/20 , F01D5/141 , F01D5/146 , F01D5/147 , F01D5/186 , F01D5/28 , F01D9/041 , F01D25/10 , F01D25/24 , F05D2220/31 , F05D2230/50 , F05D2240/122 , F05D2240/304 , F05D2240/305 , F05D2240/306 , F05D2260/2322 , F05D2270/16
Abstract: A set of stationary blades for a steam turbine is provided. At least one of the stationary blades includes a suction side and an opposite pressure side, and a plurality of ejection channels defined in the at least one stationary blade. Each of the plurality of ejection channels extends through an outer surface of the pressure side, and each of the plurality of ejection channels is coupled in flow communication to a blade inlet aperture.
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公开(公告)号：US09885364B2
公开(公告)日：2018-02-06
申请号：US14858039
申请日：2015-09-18
Applicant: Sharp Kabushiki Kaisha
Inventor： Yukishige Shiraichi , Masaki Ohtsuka
IPC: F04D17/04 , F04D29/28 , F04D29/30 , F04D29/66 , B29C45/26 , F04D17/10 , F04D25/02 , F04D29/42 , F04D17/08 , B29L31/08
CPC classification number: F04D29/281 , B29C45/26 , B29L2031/08 , F04D17/04 , F04D17/08 , F04D17/10 , F04D25/02 , F04D29/26 , F04D29/282 , F04D29/283 , F04D29/30 , F04D29/384 , F04D29/4226 , F04D29/666 , F05D2240/301 , F05D2240/303 , F05D2240/304 , F05D2240/305 , F05D2240/306 , F05D2250/711 , F05D2250/712 , F05D2250/713
Abstract: A fan includes a plurality of blade portions arranged spaced apart from each other in a circumferential direction, each blade portion having a blade surface including a pressure surface disposed on a rotational direction side of the fan and a suction surface disposed on a back side of the pressure surface. The plurality of blade portions include a first blade portion and a second blade portion different from each other in at least one of an outer peripheral blade tip angle and an inner peripheral blade tip angle, and are provided such that a discrepancy angle is equal among a plurality of the blade portion.
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