Rotor Having Flow Confining Or Deflecting Web, Shroud Or Continuous Passage Patents (Class 416/179)
  • Patent number: 11162508
    Abstract: A centrifugal fan includes a housing, a hub and a plurality of blade sets. The housing includes an air outlet and at least one air inlet. The hub is rotatably disposed in the housing. The plurality of blade sets is arranged around the hub at intervals, and each of the blade sets includes at least three blades with different shapes.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: November 2, 2021
    Inventors: Hsin-Chen Lin, Ing-Jer Chiou
  • Patent number: 11118586
    Abstract: Disclosed are a bailer-type long-shaft pump (100) and an associated pump station (200). The long-shaft pump comprises a bailer vehicle (110), a long shaft (120), a bearing (130), a transmission device (140) and an electric motor (150). One end of the long shaft (120) successively passes through the bearing (130) and the transmission device (140) so as to be in transmission connection with a drive shaft of the electric motor (150). The pump station (200) comprises a pump station foundation (210), several equipment rooms (231) transversely distributed at intervals and constructed on the pump station foundation (210), and two ends of the long shaft (120) are supported on side walls of two adjacent equipment rooms. The bailer-type long-shaft pump achieve large water flow and low lift, the pump station is space-saving, has shorter construction cycle, and reduces investment and operation costs.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: September 14, 2021
    Inventors: Yufeng Chang, Ye Chen, Xiaofeng Gu, Hao Chen, Jianzhong Yu, Yibing Guan, Fei Wang, Ben Lv, Fang Wu, Shi Cheng
  • Patent number: 10844876
    Abstract: An impeller for use in a centrifugal blower, the impeller includes a hub defining an axis of rotation for the impeller; a plurality of inclined blades, the plurality of inclined blades extending away from the hub; and a plurality of reverse inclined blades, the plurality of reverse inclined blades extending away from the hub. Each of the plurality of inclined blades are joined to an adjacent inclined blade at least in part by a reverse inclined blade.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: November 24, 2020
    Assignee: ResMed Pty Ltd
    Inventor: Barton John Kenyon
  • Patent number: 10718355
    Abstract: A centrifugal fan includes a housing and an impeller. The housing includes a sidewall, and the sidewall includes a tongue portion. The impeller includes a fan hub and a plurality of blades. The fan hub is rotatably disposed in the housing, and the tongue portion has an inner contour line on a reference plane. The blades connect to the fan hub. Each one of the blades has an end surface facing the sidewall. The end surface has an outer contour line on the section of the blade. Any two adjacent blades have different outer contour lines. The outer contour line of at least one first blade of the plurality of blades is parallel to the inner contour line. The outer contour line of at least one second blade of the plurality of blades is not parallel to the inner contour line.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: July 21, 2020
    Inventors: Hsin-Chen Lin, Ing-Jer Chiou
  • Patent number: 10584589
    Abstract: A rotor for a pump has a housing and a rotor, and has at least one blade. The rotor is able to be actuated to rotate about an axis of rotation in order to convey a fluid in the axial or radial direction, and the rotor is able to be deformed in the radial direction between a first, radially compressed state and a second, radially expanded state. At a maximum speed of rotation of the rotor at which the power of the pump is at a maximum, the blade is essentially radially oriented, and/or the rotor has its maximum diameter.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: March 10, 2020
    Inventors: Joerg Schumacher, Mario Scheckel
  • Patent number: 10563533
    Abstract: A method of remanufacturing a turbine component is provided. This method includes removing a donor portion from a damaged component; removing a to-be-replaced portion from a serviceable component generally equivalent to the donor portion leaving a remainder; and welding the donor portion to the remainder. A BOAS for a gas turbine engine is also provided that includes a serviceable BOAS with a donor portion from a damaged BOAS welded thereto.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: February 18, 2020
    Assignee: United Technologies Corporation
    Inventors: David E. Walker, Richard M. Gregoire
  • Patent number: 10502182
    Abstract: A wind turbine including a plurality of substantially similar vertically extending blades with a semi-circular profile, wherein each of such blades is divided into two adjacent compartments; an upper plate; a lower plate; and an electric generator with a gear box. The wind turbine may also include a braking mechanism to control the rotational speed of the blades such that the produced electrical parameters are below the rated characteristics of the electric generator.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: December 10, 2019
    Inventor: Moa'z Mahmoud Yusuf Elayyan
  • Patent number: 10400782
    Abstract: A compressor wheel of a fluid compression device includes a wheel part, a shaft part and a plurality of connection parts. The wheel part includes a main body formed with a through hole, and a plurality of blades protruded from an outer side of the main body. The shaft part is accommodated in the through hole and configured to connect to a rotor shaft. The plurality of connection parts is connected between an inner side of the main body and the shaft part. Wherein, a fluid passage is formed between the inner side of the main body and the shaft part to allow fluid to flow to a rear side of the compressor wheel from a front side of the compressor wheel via the fluid passage.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: September 3, 2019
    Assignee: NOPORVIS CO., LTD.
    Inventors: Yuan-Hung Tai, Hui-Hung Lin, Chun-Neng Chan
  • Patent number: 10280895
    Abstract: A semi-annular delta-airfoil is designed in conjunction with a fluid turbine rotor blade to provide increased rotor-tip speed, increased coefficient of power, reduced wind shear, reduced noise and increased self-yaw. A dual-winglet rotor blade in combination with a semi-annular delta-airfoil increases the above mentioned benefits by increasing the rotor-blade tip surface-area that is in contact with the area of increased fluid velocity over the semi-annular airfoil. Winglets on the semi-annular delta-airfoil provide self-yaw characteristics.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: May 7, 2019
    Inventor: William Scott Keeley
  • Patent number: 10202961
    Abstract: A semi-ringed airfoil is designed in conjunction with a fluid turbine rotor blade to provide increased rotor-tip speed, increased coefficient of power, reduced wind shear and reduced noise. A dual-winglet rotor blade in combination with a semi-ringed airfoil increases the above mentioned benefits by increasing the rotor-blade tip surface-area that is in contact with the area of increased fluid velocity over the semi-ringed airfoil.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: February 12, 2019
    Inventor: William Scott Keeley
  • Patent number: 10161255
    Abstract: Various embodiments of the invention include turbine nozzles and systems employing such nozzles. Various particular embodiments include a turbine nozzle having: an airfoil having: a suction side; a pressure side opposing the suction side; a leading edge spanning between the pressure side and the suction side; and a trailing edge opposing the leading edge and spanning between the pressure side and the suction side; and at least one endwall connected with the airfoil along the suction side, pressure side, trailing edge and the leading edge, the at least one endwall including a non-axisymmetric contour proximate a junction between the endwall and the leading edge of the airfoil.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: December 25, 2018
    Assignee: General Electric Company
    Inventors: Lee Larned Brozyna, Christopher Lee Golden, Christopher Donald Porter
  • Patent number: 9976536
    Abstract: The present invention relates to an air turbine capable of without change in its rotational velocity direction, efficiently absorbing the energy associated with a pressure difference between two spaces (A) and (B) of successively changing sign, as in the case of sea wave energy systems. The turbine comprises two sets of blades (I) and (II), each of which is similar to the blade system of a conventional turbine of radial-, mixed- or axial-flow type. The turbine also comprises a system of ducts that connect spaces (A) and (B) through any of the two blade sets (I) and (II). The turbine may be equipped with a fast-acting valve that stops the flow through one or both blade sets (I) and (II).
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: May 22, 2018
    Inventors: Antonio Franco De Oliveira Falcao, Luis Manuel De Carvalho Gato, Joao Carlos De Campos Henriques
  • Patent number: 9957841
    Abstract: A turbine stage for a turbine engine, the stage including a nozzle and a wheel mounted inside a sectorized ring carried by a casing. The nozzle is attached to the casing and is retained axially downstream by bearing against an annular split ring. Each ring sector includes at its upstream end a member of C-shaped section that is engaged on the casing rail and that holds the split ring radially. A radially inner wall of the C-shaped member of each ring sector extends inside the split ring over an entire axial dimension thereof and its upstream end portion is engaged in at least one recess of the nozzle.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: May 1, 2018
    Assignee: SNECMA
    Inventors: Alain Dominique Gendraud, Alberto Martin-Matos, Vincent Millier, Sebastien Jean Laurent Prestel
  • Patent number: 9200638
    Abstract: A rotor of a turbomachine compressor, including a bladed rotor disk fitted at its radially external end with a wall forming the inner end of an annual flow channel of a primary gas flow, and formed from multiple angular sectors, each of which is delimited between two blades of the disk which are consecutive in a circumferential direction and includes a bulging portion which is convex in the axial direction and in the circumferential direction, together with, upstream from the bulging portion, a troughed portion which is concave in the axial direction and in the circumferential direction and which has a base which is roughly punctiform.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: December 1, 2015
    Assignees: SNECMA, CENAERO
    Inventors: Eric Jacques Boston, Alexandre Franck Arnaud Chartoire, Vasiliki Iliopoulou, Ingrid Lepot, Thierry Jean-Jacques Obrecht
  • Patent number: 9194371
    Abstract: A wind turbine having a set of curved blades mounted on a central rotatable huh. Each of the blades has a defined pitch angle, to a rotational axis of the hub, along the blade from the hub to the tip. A curve is provided on the wind contact surface along each of the blades over the blade surface from the leading edge of the blade to the trailing edge of the blade by an amount between about 6 and about 24 degrees. The defined pitch angle from any point along the leading edge of the blade being defined by the arc-sine of a ratio of blade velocity to apparent wind velocity, with a variance of ±30 percent of the complementary angle to the arc-sine; and apparatus for varying the velocity of the blade to control power output so that it is within fifteen percent of maximum obtainable power of the blade most distant from the hub.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: November 24, 2015
    Inventor: Kean W. Stimm
  • Publication number: 20150128612
    Abstract: A gas or steam turbine is disclosed herein. The turbine may include a throat area formed between adjacent buckets. The turbine also may include a variable throat device associated with at least one of the adjacent buckets. The variable throat device may be configured to vary the throat area between the adjacent buckets for improved part load performance.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 14, 2015
    Applicant: General Electric Company
    Inventors: Moorthi Subramaniyan, Jeyamani Doss, Subodh Diwakar Deodhar
  • Publication number: 20150098829
    Abstract: A shroud assembly having rope seals disposed between the shroud hangers and the surrounding case structure.
    Type: Application
    Filed: April 26, 2013
    Publication date: April 9, 2015
    Inventors: Jonathan David Baldiga, Meghan Mary Lenihan, Jason David Shapiro
  • Patent number: 8961107
    Abstract: A heat-dissipation fan including a base and an impeller disposed at the base, wherein the impeller includes a plurality of first blades, a plurality of second blades and a plurality of connection ribs. Each of the first blades and each of the second blades are arranged alternately. Each of the connection ribs comprises a first edge, a second edge and a third edge. The first edge is connected with the first blade, the second edge is connected with the second blade, the third edge is connected with the first edge and the second edge, and the third edge and the second blade are spaced apart to form a first vent. The first edge comprises a first length, the second edge comprises a second length, and the first length is larger than the second length.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: February 24, 2015
    Assignee: ADDA Corp.
    Inventors: Yen-Min Su, Kao-Chuan Huang, Chi-Ping Lai, Jiun-Shian Guo
  • Publication number: 20150044048
    Abstract: Provided is a method of manufacturing an impeller assembly, the method including providing an impeller including: a rotary shaft; a base portion radially extending outward from the rotary shaft; and a plurality of blades extending radially outward from the rotary shaft and disposed on the base portion, each of the plurality of blades provided apart from one another in a circumferential direction around the rotary shaft; providing a mold in an area between the plurality of blades; and forming a shroud covering upper portions of the plurality of blades and an upper portion of the mold, wherein the forming the shroud comprises applying a melted metal on the upper portions of the plurality of blades and the upper portion of the mold.
    Type: Application
    Filed: May 13, 2014
    Publication date: February 12, 2015
    Applicant: SAMSUNG TECHWIN CO., LTD.
    Inventor: Jong Kee AHN
  • Patent number: 8944748
    Abstract: A fluid pump device, in particular for a medical application, is described having a compressible pump housing and rotor, as well as with a drive shaft which runs in a sleeve and on whose end the fluid pump is arranged. In order to utilize all possibilities of a space-saving arrangement of the respective pump housing of the rotor, which is compressible per se, and as the case a bearing arrangement, the mentioned elements are displaceable to one another in the axial direction compared to an operation position. In particular these elements may be end-configured by way of an axial movement of the drive shaft after the assembly.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: February 3, 2015
    Assignee: ECP Entwicklungsgesellschaft mbH
    Inventor: Reiner Liebing
  • Patent number: 8939733
    Abstract: A fan for an engine ventilation system includes a housing defining an inlet and an outlet. A hydraulic motor is coupled to the fan housing and includes a motor housing, motor shaft, and shaft seal disposed between the motor housing and the motor shaft. An impeller assembly is disposed in the housing, as well as a stationary baffle that includes a baffle inner edge disposed axially between the impeller assembly and a second wall of the fan housing. A deflector disc is coupled to the impeller assembly and includes a deflector disc outer edge positioned axially rearward of the baffle inner edge. The deflector disc and baffle direct any hydraulic fluid leaking past the shaft seal away from the impeller assembly to a collection chamber.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: January 27, 2015
    Assignee: Caterpillar Inc.
    Inventors: Ryan Chiaki Mann, Kalpeshbhai G. Patel, William N. O'Neill
  • Publication number: 20150017001
    Abstract: According to an aspect of an exemplary embodiment, there is provided a rotation body of a rotary machine, the rotation body comprising: an impeller comprising a blade; and a shroud that is integrally formed with the impeller and has a cladding stack structure in which a plurality of laser cladding layers are stacked.
    Type: Application
    Filed: February 13, 2013
    Publication date: January 15, 2015
    Applicant: SAMSUNG TECHWIN CO., LTD.
    Inventor: Sung-Chul Ahn
  • Publication number: 20140308132
    Abstract: Disclosed are a shroud impeller of a centrifugal compressor and a method of manufacturing the same where the shroud impeller includes a rotary hub connected to a driving shaft, a plurality of blades radially provided about a rotational axis of the rotary hub, and an integral shroud bonded onto top ends of the blades.
    Type: Application
    Filed: June 24, 2013
    Publication date: October 16, 2014
    Inventors: Kyung Kook KIM, Sang Eon LEE
  • Publication number: 20140248139
    Abstract: Various embodiments include a turbomachine bucket having a flow interrupter, as well as related turbomachines. Various embodiments include a turbomachine bucket having: a base section sized to couple with a turbomachine rotor, the base section having a leading edge and a trailing edge opposing the leading edge; a blade section coupled to the base section and aligned to extend radially from the base section; a shroud coupled to the blade section and aligned to extend radially from the blade section; and a flow interrupter coupled to the leading edge of the base section.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 4, 2014
    Inventors: Moorthi Subramaniyan, Prabakaran Modachur Krishnan
  • Publication number: 20140205458
    Abstract: Turbomachines having close-coupling flow guides (CCFGs) that are designed and configured to closely-couple flow fields of adjacent bladed elements. In some embodiments, the CCFGs may be located in regions extending between the adjacent bladed elements, described herein as coupling avoidance zones, where conventional turbomachine design would suggest no structure should be added. In yet other embodiments, CCFGs are located upstream and/or downstream of rows of blades coupled to the bladed elements, including overlapping one of more of the rows of blades, to improve flow coupling and machine performance. Methods of designing turbomachines to incorporate CCFGs are also provided.
    Type: Application
    Filed: January 23, 2014
    Publication date: July 24, 2014
    Applicant: Concepts ETI, Inc.
    Inventor: David Japikse
  • Patent number: 8753086
    Abstract: An impeller includes a substantially cylindrical cup portion arranged to rotate about a center axis, a plurality of blades fixed to an outer circumferential surface of the cup portion for unitary rotation with the cup portion to draw air from one axial side and discharge the air to the other axial side, and an annular connector portion arranged to interconnect the blades. The connector portion has a substantially cylindrical shape in a position spaced apart about 70% to about 90% of the radial length of the blades from the base of each of the blades on the outer circumferential surface of the cup portion, and the ratio of a total axial height of the connector portion to a total radial gap between the outer circumferential surface of the cup portion and the inner circumferential surface of the connector portion is equal to or smaller than about 0.9.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: June 17, 2014
    Assignee: Nidec Servo Corporation
    Inventors: Asahi Higo, Seung-Sin Yoo, Osamu Sekiguchi, Taro Tanno
  • Publication number: 20140154079
    Abstract: A turbine rotor blade is provided. The turbine rotor blade includes an airfoil, an airfoil tip, a tip shroud, and a fillet about an intersection of the airfoil tip and the tip shroud. The fillet defines a fillet profile variable about the intersection as a function of aerodynamic airflow about the intersection.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Applicant: General Electric Company
    Inventors: Rohit Chouhan, Harish Bommanakatte, Sumeet Soni, Srinivasa Govardhan Jayana, Spencer Aaron Kareff
  • Publication number: 20140140841
    Abstract: A turbine bucket shroud arrangement for a turbine system includes a contact region of a tip shroud, wherein the contact region is in close proximity to an adjacent tip shroud. Also included is a negative thermal expansion material disposed proximate the contact region, the contact region comprising a first volume during a startup condition and a shutdown condition of the turbine system and a second volume during a steady state condition of the turbine system, wherein the second volume is less than the first volume.
    Type: Application
    Filed: November 19, 2012
    Publication date: May 22, 2014
    Inventors: Krishna Kishore Gumpina, Sheo Narain Giri, Sanjeev Kumar Jha, Mahesh Pasupuleti
  • Patent number: 8721262
    Abstract: A vertical centrifugal pump comprises a housing, impeller, annular guiding vanes, annular outlet with outer and inner casings, forming a collector with a pressure pipe, and flow channels to lower and upper rims. Channels to the lower rim pass through the center of the pump axis. Blades direct flow between pipes into the pressure pipe. Pipes are connected with the lower rim through the lower confuser with flat radial ribs, positioned with the inner part of the confuser from the pipes and the outer part from the inner casing to the lower rim. An annular baffle is implemented between the housing and outer casing, dividing the inlet to the rims. Channels to the upper rim are created between the two annular elements, connected by radial outer ribs with a thickened, streamlined form and mated with flat inner ribs, merged in the upper confuser similarly to the lower confuser.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: May 13, 2014
    Inventor: Alexander Ivanovich Kuropatov
  • Publication number: 20140127020
    Abstract: A bucket assembly includes a plurality of first buckets, and a pair of transition buckets. Each first bucket includes a bucket cover including a pair of lateral edges each having a first configuration. Each transition bucket includes a transition cover including a first lateral edge having the first configuration and a second lateral edge having a second configuration.
    Type: Application
    Filed: November 2, 2012
    Publication date: May 8, 2014
    Inventors: Tai Joung Kim, Timothy Scott McMurray, John Thomas Basirico
  • Publication number: 20140127021
    Abstract: A improved impeller for use in a centrifugal slurry pump is provided, comprising: a top shroud; a bottom shroud; and a middle portion therebetween, said middle portion having at least one substantially vertical wall defining a slurry flow channel, wherein the top shroud, bottom shroud and middle portion are configured as one piece to together define a first unitary body; at least one vane nose positioned at a leading edge of the at least one substantially vertical wall; and, optionally, a retaining ring mounted over the top shroud to secure the vane nose within the body.
    Type: Application
    Filed: October 29, 2013
    Publication date: May 8, 2014
    Applicant: SYNCRUDE CANADA LTD. in trust for the owners of the Syncrude Project
  • Patent number: 8714917
    Abstract: A pump having anti-airlock provisions. The pump is comprised of a volute comprised of a volute wall, and an impeller comprising back vanes on a side of the impeller that is proximate to the volute wall, with the back vanes having a length extending radially outwardly along the impeller. A bleed hole is formed in the volute wall in communication with the portion of the volute between the back vanes and the volute wall, and the exterior of the volute, such that the bleed hole is located midway along the length of the back vanes. When the pump is operating with air, liquid, or a combination of air and liquid in the volute, the bleed hole is under positive pressure with respect to the exterior of the volute. The bleed hole may be in communication with the exterior of the volute through a lateral tunnel formed in the pump.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: May 6, 2014
    Assignee: Liberty Pumps Inc.
    Inventors: Donald M. Pohler, Matthew S. Heinsler
  • Patent number: 8708655
    Abstract: A rotor blade for a turbine engine includes a first side that defines a first contact face with a hardcoat and a second side that defines a second contact face without a hardcoat.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: April 29, 2014
    Assignee: United Technologies Corporation
    Inventors: John R. Farris, Raymond Surace
  • Publication number: 20140064970
    Abstract: An impeller of a centrifugal pump is provided. The impeller includes at least two blades (4) for conveying media containing solids. An impeller blade leading angle (?1) is smaller than 0°. The blade angle (?) increases in a first section (9) until a value of 0° is reached. In a second section (10), another increase occurs until a maximum value is reached. In a third section (11), the blade angle (?) decreases again.
    Type: Application
    Filed: April 18, 2012
    Publication date: March 6, 2014
    Applicant: KSB Aktiengesellschaft
    Inventor: Peer Springer
  • Publication number: 20140044534
    Abstract: A centrifugal fan includes a casing having an upper casing and a lower casing, and an impeller disposed between the upper and lower casing. The impeller includes an upper shroud having an upper portion formed with an inlet, a lower shroud, and a plurality of blades arranged along a circumference direction between the upper shroud and the lower shroud. The lower shroud is provided only on a portion at a side of a rotation axis of the impeller such that at least an outer circumferential side portion of each blade faces an upper surface of the lower casing. A surface of the lower casing, which faces the impeller, configures a portion of a wall surface which guides the fluid introduced from the inlet. Each blade has a shape which becomes thinner as increasing a distance from the upper shroud in a direction parallel to the rotation axis.
    Type: Application
    Filed: August 7, 2013
    Publication date: February 13, 2014
    Applicant: MINEBEA CO., LTD.
    Inventors: Takayuki YAMASAKI, Seiya FUJIMOTO, Takako OTSUKA, Masaki OGUSHI
  • Patent number: 8618687
    Abstract: A swimming pool water inlet generator operable to allow the generator to be attached to a swimming pool water inlet, a turbine assembly arranged and operable to generate electricity when water flows through the inlet and at least one electrically powered device operable to use the generated electricity in the operation thereof.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: December 31, 2013
    Inventor: Douglas Burnham
  • Publication number: 20130315737
    Abstract: A fan assembly includes a shrouded fan rotor having fan blades extending from a hub and rotatable about a central axis. A fan shroud extends circumferentially around the fan rotor and secured to the fan blades. The shroud includes a first axially extending annular portion secured to the fan blades, a second axially extending annular portion radially outwardly spaced from the first axially extending annular portion, and a third portion connecting the first and second axially extending annular portions. A casing is located circumferentially around the fan shroud defining a radial clearance between the casing and the fan shroud, and includes casing wedges extending from a radially inboard surface of the casing toward the shroud and defining a radial wedge gap between a first wedge surface and the shroud and an axial wedge gap between a second wedge surface and an upstream end of the fan shroud.
    Type: Application
    Filed: March 25, 2013
    Publication date: November 28, 2013
    Applicant: Carrier Corporation
    Inventors: Ryan K. Dygert, Peter R. Bushnell
  • Publication number: 20130294918
    Abstract: The invention relates to a turbine engine including a stack of stages, each of which includes a cross-flow turbine and a generator, where each turbine-generator stage has an independent shaft, and wherein each stage is associated with an independent fairing (31-32) directing it with respect to a current, each fairing being of shroud type, with symmetrical profiled wings.
    Type: Application
    Filed: November 4, 2011
    Publication date: November 7, 2013
    Applicants: OydroQuest, Electricite de France
    Inventors: Thomas Jaquier, Jean-Luc Achard
  • Publication number: 20130259691
    Abstract: An airfoil with a tip cover surface treatment for reducing leakage flows, minimizing tip vortex size and penetration into main flow that will improve turbine efficiency. The surface treatment for the airfoil tip covers includes a series of concave shapes, such as grooves or holes. These grooves and holes will cause the leakage flow into separate flow paths within the cavities and generate more resistance to leakage flows through the airfoil tip clearance, thereby reducing the leakage mass flow and weakening tip vortex and its interaction with turbine main flows. The material removed from the tip cover provides the additional benefit of reducing the weight of the tip cover, thereby enhancing blade reliability.
    Type: Application
    Filed: July 17, 2009
    Publication date: October 3, 2013
    Inventors: Xiaoyue Liu, Joseph A. Cotroneo, Jonathon E. Slepski, Zekai Ceylan, Hiteshkumar R. Mistry
  • Publication number: 20130189106
    Abstract: Embodiments of the present disclosure are directed toward systems including a turbomachine blade tip shroud having a pressure side portion and a suction side portion. The pressure side portion and the suction side portion are divided by a mean camber line of a turbomachine blade, and the pressure side portion has a greater surface area than the suction side portion.
    Type: Application
    Filed: January 20, 2012
    Publication date: July 25, 2013
    Inventors: Rohit Chouhan, Sumeet Soni, Paul Kendall Smith, Srinivasa Govardhan Jayana, Sylvain Pierre, Harish Bommanakatte, Santhosh Kumar Vijayan, Spencer Aaron Kareff
  • Publication number: 20130177425
    Abstract: A turbine blade assembly that is able to be driven by the wind, the turbine blade assembly comprising a hub, a multiplicity of hub blades attached to and extending outwardly from the hub, a first cowl attached to an end of the hub blades, wherein the first cowl is at an angle of between 9 and 15 degrees with respect to a central axis of rotation of the hub.
    Type: Application
    Filed: May 13, 2011
    Publication date: July 11, 2013
    Inventor: Stephen John Richter
  • Patent number: 8454317
    Abstract: The present invention relates to a fan wheel in a version as a radial or diagonal fan, of a baseplate and of a plurality of fan blades arranged so as to be distributed over the circumference of the inlet port and around an axis of rotation. The fan wheel has a shroud with an inlet port and the shroud and/or the baseplate have/has in this case a nonrotationally symmetrical geometry which in each case has a continuous and point-invariable profile, as seen in the axial or axially parallel direction.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: June 4, 2013
    Assignee: EBM-Papst Mulfingen GmbH & Co. KG
    Inventors: Katrin Bohl, Marc Schneider, Jürgen Schöne
  • Publication number: 20130121832
    Abstract: A wind turbine 10 includes a turbine wheel 14 that includes a circular air foil 22 surrounding the turbine blades 24, with the angle of attack 39 of the air foil directing some of the trailing air outwardly in a cone-shaped path to form an area of low air pressure that induces more rapid flow of atmospheric air through the turbine blades.
    Type: Application
    Filed: November 11, 2011
    Publication date: May 16, 2013
    Inventor: Gerald L. Barber
  • Publication number: 20130108428
    Abstract: This invention discloses a hydraulic power unit, which is capable of strongly jetting a working fluid, may be used to implement a new hydraulic engine. The hydraulic engine generates rotational power by using environmentally friendly electric energy, and has improved performance and a long life span. The hydraulic power unit includes: an inner tube comprising a hollow portion, wherein a fluid inlet and a fluid outlet are formed in the inner tube; a vibration tube comprising a hollow portion, an elastic tube layer and a metal tube layer, and the hollow portion of the vibration tube is connected in line to the hollow portion of the inner tube; an oscillator that is disposed to contact a back end of the vibration tube; an outer check member that is disposed to contact the fluid outlet; and an inner check ring that is disposed to contact the fluid inlet.
    Type: Application
    Filed: October 31, 2011
    Publication date: May 2, 2013
    Inventor: Lucas IHSL
  • Patent number: 8425186
    Abstract: To provide a centrifugal compressor having a high pressure ratio, which can achieve a large flow rate while suppressing a decrease in efficiency, the centrifugal compressor being adapted to compress and discharge a gas, which has been sucked in by rotation of an impeller (10) pivotally supported in a casing (11), mainly by centrifugal force, the inlet radius/outlet radius ratio (R1/R2) of the impeller (10) is set at 0.7?R1/R2?0.85, and the inclination angle (74 ) of a back board portion in a hub (10a) of the impeller (10) is set at 5°???15°.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: April 23, 2013
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Hirotaka Higashimori
  • Publication number: 20130089412
    Abstract: A turbomachine rotor includes: a rotor body having an outer surface; and a patterned abrasive or abradable coating formed over the outer surface of the rotor body, the patterned abrasive or abradable coating for directing a flow of a working fluid across the turbomachine rotor.
    Type: Application
    Filed: October 7, 2011
    Publication date: April 11, 2013
    Inventors: Sulficker Ali, Vasanth Muralidharan
  • Publication number: 20130089424
    Abstract: A blade row for a turbomachine, in particular a gas turbine, is disclosed. The blade row has a number of first blade arrangements each having at least one first blade and a first shroud with a first extension in the circumferential and/or axial direction and at least a number of additional blade arrangements each having at least one additional blade and one additional shroud with an additional extension in the same direction, which is different from the first extension.
    Type: Application
    Filed: October 4, 2012
    Publication date: April 11, 2013
    Applicant: MTU Aero Engines GmbH
    Inventor: Joerg FRISCHBIER
  • Publication number: 20130052019
    Abstract: A rotor assembly having a first component and a second component. The second component is secured within a bore of the first component by a first adhesive and a second adhesive. The first adhesive forms an annular seal between the first component and the second component, and the second adhesive extends from the first adhesive and has a lower viscosity than that of the first adhesive.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 28, 2013
    Applicant: Dyson Technology Limited
    Inventors: David IONS, David Michael Jones
  • Publication number: 20130017067
    Abstract: Systems and methods according to these exemplary embodiments provide welding techniques for impeller blades associated with impellers in centrifugal compressors. According to one exemplary embodiment, a connection area of the impeller blade has a “hammer”-shaped cross-sectional area which facilitates beam welding of the connection area to a slot in the surface or body to which the blade is to be connected.
    Type: Application
    Filed: December 7, 2010
    Publication date: January 17, 2013
    Inventors: Ugo Cantelli, Enzo Miniati, Mirco Innocenti
  • Publication number: 20130011264
    Abstract: A blade for a rotor of a turbine includes an airfoil, a shroud and a platform. The platform includes a top plate, a shank and a fixing part. An upstream wall projects in the circumferential direction away from the shank and extends from the top plate toward the fixing part, the upstream wall at least partially covering an upstream side of the shank. A downstream wall projects in the circumferential direction away from the shank and extends from the top plate toward the fixing part, the downstream wall at least partially covering a downstream side of the shank. A recess is disposed in at least one of the upstream wall and the downstream wall. The recess has an open side facing in a same direction as a respective one of the upstream wall and the downstream wall, in which the recess is disposed, is projecting.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 10, 2013
    Inventors: Alexander Anatolievich Khanin, Andrei Vladimirovich Pipopulo