Circumferentially And Radially Continuous Web Or End Plate Patents (Class 416/185)
  • Patent number: 10634157
    Abstract: A centrifugal compressor impeller comprises a gas inlet, a gas outlet, and a disc having a plurality of blades extending therefrom. Each blade has a leading edge at the impeller inlet and a trailing edge at the impeller outlet, a blade base extending along the disc between the leading edge and the trailing edge, a blade tip extending between the leading edge and the trailing edge opposite the disc, a pressure side and a suction side. Each blade has a three-dimensional curvature in at least a portion of the surface, adjacent the leading edge. The leading edge has a curved, non-linear profile in a meridian plane. The blade portion has a double-curvature. Each blade has a first metal angle distribution at the blade base, a second metal angle distribution at the blade tip and at least a third metal angle distribution between the blade base and the blade tip.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: April 28, 2020
    Assignee: Nuovo Pignone Srl
    Inventors: Dante Tommaso Rubino, Emanuele Guidotti, Satish Koyyalamudi
  • Patent number: 10598186
    Abstract: A method for preventing corrosion of an impeller-shaft assembly of a turbomachine comprises the steps of assembling an impeller on a shaft in order to define an impeller-shaft assembly; plating the assembly by inserting the assembly into a plating bath; and coating at least a first predefined surface on the impeller and a second predefined surface on the shaft wherein the coating step is performed by spraying the predefined surfaces.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: March 24, 2020
    Assignee: Nuovo Pignone SRL
    Inventors: Filippo Cappuccini, Stefania Stramare, Marco Romanelli, Marco Anselmi, Riccardo Paoletti, Alessio Bandini
  • Patent number: 10553322
    Abstract: Modular flow control systems include several differently-shaped structures to achieve desired flow characteristics in fluid flow. Systems include one or many plates held in desired positions by a retainer within the flow. The plates are uniquely shaped based on their position, or vice versa, to shape flow in a desired manner. The plates may fill an entire flow area or may extend partially throughout the area. Plates can take on any shape and are useable in systems installed in any type of flow conduit. When used in a PCCS upper manifold in a nuclear reactor, a chevron plate directly below the inlet divides flow along the entire upper manifold. Perforated plates allow flow to pass at ends of the PCCS upper manifold. The plates can be installed along a grooved edge during an access period and held in static position by filling the length of the PCCS upper manifold.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: February 4, 2020
    Assignee: GE-HITACHI NUCLEAR ENERGY AMERICAS LLC
    Inventors: Mitra Hosseini, Gerald A. Deaver, Jesus G. Diaz-Quiroz, Randy M. Brown
  • Patent number: 10473105
    Abstract: An impeller and rotor structure for a magnetically levitated pump define a smooth primary flow path and U-shaped secondary flow path, which extends around an annular magnetic rotor. The u-shaped secondary flow path is defined by a large outer side gap along an outer surface of the rotor, a large bottom gap along a bottom surface of the rotor and a large inner gap along an inner surface of the rotor. Shroudless impeller blades are purely radial and overhung from a thin peripheral ring attached to the annular magnetic rotor. A center post having a low aspect ratio extends through the annular rotor. The low aspect ratio is configured to prevent flow in the primary flow path from colliding directly with flow in the secondary flow path at the inner radial gap.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: November 12, 2019
    Assignee: CH Biomedical (USA) Inc.
    Inventors: Frank Lin, Chen Chen
  • Fan
    Patent number: 10428837
    Abstract: A fan for generating an air current includes a body having an air inlet, and a nozzle connected to the body. The nozzle includes an interior passage and an air outlet from which the air flow is emitted from the fan. The interior passage extends about an opening or bore through which air from outside the nozzle is drawn by air emitted from the air outlet. The body includes a duct having a first end defining an air inlet of the duct and a second end located opposite to the first end and defining an air outlet of the duct, an impeller located within the duct for drawing the air flow through the duct, and a motor for driving the impeller. The second end of the duct protrudes from the body into the interior passage of the nozzle.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: October 1, 2019
    Assignee: DYSON TECHNOLOGY LIMITED
    Inventors: Antoine Francois Atkinson, Ryan Neal Stimpson
  • Patent number: 10385864
    Abstract: A compressor wheel of a charging device may include a hub, a plurality of blades and a wheel back. The wheel back may have an undulating profile which extends from the hub in a radial direction. The undulating profile may include a plurality of regions. The plurality of regions may adjoin one another and may include a first concave region, a second convex region, a third concave region, and a fourth convex region. The second convex region may adjoin the first concave region. The third concave region may adjoin the second convex region. The fourth convex region may adjoin the third concave region.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: August 20, 2019
    Assignee: BMTS Technology GmbH & Co. KG
    Inventor: Kinh Toai Pham
  • Patent number: 10302096
    Abstract: An air conditioner includes a scroll body comprising an inlet through which air is introduced, an outlet through which the air is discharged, and an air passage between the inlet and the outlet, a sirocco fan rotatably disposed in the scroll body, the sirocco fan configured to allow the air to be sucked through the inlet and to be discharged through the outlet when the sirocco fan rotates, and a bell mouth formed around the inlet of the scroll body, wherein the scroll body and the sirocco fan satisfy a following formula: 0.76?H/D?0.8, where H (mm) is a height of the scroll body, and D (mm) is an outer diameter of the sirocco fan.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: May 28, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-hun Kang, Jin-baek Kim, Eung-ryeol Seo, Min-gi Cho
  • Patent number: 9909553
    Abstract: A runner device (1) for a hydraulic fluid flow machine is described, the runner (1) including a runner hub (2) and a number of vanes (4) distributed around the center axis (S) of the runner (1), the vanes (4) being releasably connected to the runner (1) by means of bases (41) that complementarily fit grooves (21) in the runner hub (2), characterized by the grooves (21) in the runner hub (2) extending, at least at one of the outer edge portion (23) or the inner edge portion (25) of the runner hub, respectively all the way out to or all the way in to the edge portion (23, 25), whereby the bases (41) may extend radially out to or in to at least one of the outer edge portion (23) or the inner edge portion (25), respectively, of the runner hub (2). A method of providing a runner (1) for a hydraulic fluid flow machine is described as well.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: March 6, 2018
    Assignee: Dynavec AS
    Inventor: Per Egil Skare
  • Patent number: 9850760
    Abstract: A rotating machine includes a hub portion, wherein the hub portion comprises a forward face and an aft face. The rotating machine further includes a cooling channel formed on either the forward face or the aft face and configured to direct cooling air to a location on the rotating machine, wherein the cooling channel extends from a radially inner location along the face to a radially outer location along the face, and wherein the cooling channel is configured as a recess formed into an outer surface of the face.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: December 26, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Lorenzo Crosatti, Jason Smoke
  • Patent number: 9745983
    Abstract: Ventilation device including a turbine mounted inside a radially volute-shaped casing, the peripheral wall of the casing moving progressively away from the periphery of the turbine from a volute tongue to a distal end (E2) of the volute, the radial expansion of the volute being defined by an angle of expansion (ai), characterised by the fact that the initial angle of expansion (a1) in the vicinity of the volute tongue is 1.5 times to 3 times greater than the final angle of expansion (a2) in the vicinity of the distal end (E2) of the volute, so that the peripheral wall of the casing moves away from the blades more rapidly at the start of the volute minimising the turbulences generated at the volute tongue.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: August 29, 2017
    Assignee: MAHLE International GmbH
    Inventor: David Pihet
  • Patent number: 9631632
    Abstract: A blade of an impeller has a blade surface made up of line elements. The line elements forming the blade surface are not parallel to each other. A relationship between a twist angle of the line elements and a distance between the origin and an intersection of a central line of the impeller and an extension line of a Z-axis projection line obtained by projecting each of the line elements onto a Z-axis projection plane is represented by a curve.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: April 25, 2017
    Assignee: FANUC CORPORATION
    Inventor: Shinji Okuda
  • Patent number: 9568022
    Abstract: An impeller which is applied to a fan includes a hub, a plurality of first centrifugal blade and a plurality of second centrifugal blades. The hub is disposed in an accommodating space of the fan. The first centrifugal blades and the second centrifugal blades are connected to the hub. The first centrifugal blades have first ends away from the hub. The second centrifugal blades have second ends away from the hub. A distance between the second end and a center of the hub is larger than that between the first end and the hub center, and the first centrifugal blades and the second centrifugal blades are arranged periodically. Thus, an airflow noise in a constant frequency generated by the impeller can be avoided, and noises in inconstant frequency would not accumulate or generate annoying noise peak.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: February 14, 2017
    Assignee: ASUSTeK COMPUTER INC.
    Inventor: Ing-Jer Chiou
  • Fan
    Patent number: 9568021
    Abstract: A fan for generating an air current includes a body having an air inlet, and a nozzle connected to the body. The nozzle includes an interior passage for receiving an air flow from the body and an air outlet from which the air flow is emitted from the fan. The interior passage extends about an opening or bore through which air from outside the nozzle is drawn by air emitted from the air outlet. The body includes a duct having an air inlet and an air outlet, an impeller located within the duct for drawing the air flow through the duct, and a motor for driving the impeller. A noise suppression cavity is located beneath the air inlet of the duct. The cavity has an inlet which is located beneath, and is preferably concentric with, the air inlet of the duct.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: February 14, 2017
    Assignee: Dyson Technology Limited
    Inventors: Jack Johnson, Jean-Baptiste Blanc
  • Fan
    Patent number: 9568006
    Abstract: A fan for generating an air current includes a body having an air inlet, and a nozzle connected to the body. The nozzle includes an interior passage for receiving an air flow from the body and an air outlet from which the air flow is emitted from the fan. The interior passage extends about an opening or bore through which air from outside the nozzle is drawn by air emitted from the air outlet. The body includes a duct having an air inlet and an air outlet, an impeller located within the duct for drawing the air flow through the duct, and a motor for driving the impeller. An annular guide member extends about the duct for guiding air from the air inlet of the body to the air inlet of the duct. The guide member defines with the duct an annular noise suppression cavity.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: February 14, 2017
    Assignee: Dyson Technology Limited
    Inventors: Jack Johnson, Jean-Baptiste Blanc
  • Patent number: 9534499
    Abstract: A method is provided for extending the service life of a used metallic compressor wheel having a damaged surface. The method generally comprises the steps of inspecting the used compressor wheel for material discontinuities such as fatigue cracks and, if fatigue cracks exceeding a predetermined length are not present, renewing the used compressor wheel such as by peening. The inspection process comprises conducting a non-destructive examination of the used compressor wheel to detect cracks larger than those which would fall generally within the compressive stress zone that is generated by peening.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: January 3, 2017
    Assignee: Caterpillar Inc.
    Inventors: Sean Olen Cornell, Marvin Grendel McKimpson, Yong Tian, Dong Fei
  • Patent number: 9353630
    Abstract: A turbine rotor of a turbine includes a hub that serves as an axis of rotation, and a plurality of turbine blades. The turbine blades each have a line extending along a shroud-side edge of the turbine blade from the inlet to the outlet as a shroud line. The shroud line includes an entrance-side shroud line La that makes a small change from the inlet toward the outlet in a blade angle with respect to the axis of rotation, a center shroud line Lb that extends from the outlet side of the entrance-side shroud line La and makes a greater change than that of the entrance-side shroud line La, and an exit-side shroud line Lc that extends from the outlet side of the center shroud line Lb to the outlet and makes a smaller change than that of the center shroud line Lb.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: May 31, 2016
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Katsuyuki Osako, Atsushi Matsuo, Takao Yokoyama
  • Patent number: 9243514
    Abstract: A hybrid radial gas turbine engine component comprises an inner hub portion joined to an outer ring portion. The inner hub portion is a first alloy and operates at temperatures less than 1200° F. The outer ring portion is a second alloy and is designed to withstand extended periods at temperatures greater than 1200° F.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: January 26, 2016
    Assignee: United Technologies Corporation
    Inventors: W. Samuel Krotzer, Jr., Michael D. Greenberg, Kevin W. Schlichting
  • Patent number: 9169844
    Abstract: A centrifugal fan includes an impeller, a motor and a case. The impeller includes a hub and multiple blades. The hub has a center. The blades are connected to the hub and have all respective outmost edges collectively define a circle with the center and a radius R. Each blade has at least one concave cutout. Each concave cutout is equipped with a depth of greater than 0.5 millimeters and an obtuse angle of less than 170 degrees, wherein the obtuse angle is an included angle between an inner edge of the concave cutout and an outer edge of the blade. The motor is secured to the huh and drives the impeller to rotate. The case houses the impeller and the motor.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: October 27, 2015
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Hsin-Chen Lin, Hsiang-Jung Huang
  • Patent number: 9066627
    Abstract: Embodiments of the invention include instant food systems and methods regarding the same. In an embodiment, the invention includes a method for preparing a hot instant food product. The method can include adding a heated liquid to a container, adding a substantially dry food product mixture to the container, wherein the volume of the dry food product mixture is equal to at least 20% of the volume of heated liquid, placing a mixing head into the container, and rotating the mixing head for a period of less than sixty seconds in order to form a fully hydrated frothed food product. In an embodiment, an instant food preparation machine is included. In an embodiment, a mixing head is included. In an embodiment, an instant food preparation kit is included. Other embodiments are also included herein.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: June 30, 2015
    Assignee: CAMPBELL SOUP COMPANY
    Inventors: John Baranowski, Talia Salamon-Hickey, Susan Marie Caime, William John Cramer, John Allen Sinclair, Michael Roy Fairs
  • Patent number: 9039374
    Abstract: A turbine rotor of a turbine includes a hub that serves as an axis of rotation, and a plurality of turbine blades. The turbine blades each have a line extending along a shroud-side edge of the turbine blade from the inlet to the outlet as a shroud line. The shroud line includes an entrance-side shroud line La that makes a small change from the inlet toward the outlet in a blade angle with respect to the axis of rotation, a center shroud line Lb that extends from the outlet side of the entrance-side shroud line La and makes a greater change than that of the entrance-side shroud line La, and an exit-side shroud line Lc that extends from the outlet side of the center shroud line Lb to the outlet and makes a smaller change than that of the center shroud line Lb.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: May 26, 2015
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Katsuyuki Osako, Atsushi Matsuo, Takao Yokoyama
  • Publication number: 20150125303
    Abstract: Provided is an impeller in which a through hole is provided in a center of a base member of the impeller and a plurality of recessed parts are formed on a bottom surface of the base member. Meanwhile, a jig using in a cutting work of the impeller includes a seating part having a seating surface, a shaft part is erected from a central part of the seating part and is engageable with the through hole of the impeller, and protruded parts are formed on the seating surface and are engageable with the recessed parts provided on the base-member bottom surface of the impeller.
    Type: Application
    Filed: October 28, 2014
    Publication date: May 7, 2015
    Inventor: Takashi MASAKAWA
  • Patent number: 9022731
    Abstract: The present document describes a centrifugal ceiling fan. The fan comprises a casing, a motor and a centrifugal propeller. The casing comprises an upper surface comprising an air inlet and a lower surface comprising an air outlet. In an embodiment, the lower surface has a round bowl-like shape including a plurality of openings defining the air outlet. The propeller comprises a shaft and a plurality of blades provided around the shaft. The blades may be curved to push the air in all directions between a first direction substantially perpendicular to the rotation shaft and a second direction substantially parallel to the rotation shaft in order to evenly ventilate the room. The fan may include a heating element for heating the air as it exits from the fan.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: May 5, 2015
    Inventor: Alessandro Seccareccia
  • Publication number: 20150104317
    Abstract: Turbocharger turbine wheels are designed to accelerate rapidly and to rotate at very high RPM. A turbine wheel is provided with improved low cycle fatigue resistance. The wheel can be balanced by conventional methods.
    Type: Application
    Filed: April 22, 2013
    Publication date: April 16, 2015
    Applicant: BorgWarner Inc.
    Inventors: Rajmohan T. Chandramohanan, Paul K. Anschel
  • Patent number: 9004067
    Abstract: An impeller includes a top shroud, a bottom shroud, and a plurality of vanes extending from the top shroud to the bottom shroud. The top and bottom shrouds are generally planar, and a lower edge of each vane tapers from an outer edge of the bottom shroud to a transverse tip edge thereof.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: April 14, 2015
    Assignee: RedMed Limited
    Inventors: Barton John Kenyon, Ian Malcolm Smith, Andrew Wilson, Nicholas Jerome Reed
  • Patent number: 8998581
    Abstract: An impeller for a turbo-machine and is provided. The impeller includes a metallic base having a central hole, a back surface and a front surface opposite to the back surface; at least one blade extending on the front surface of the metallic base; a composite shroud attached to the at least one blade such that plural closed paths or vanes are formed by the front surface of the metallic base, the at least one blade and the composite shroud; and a connector configured to attach the composite shroud to the metallic base or the at least one blade.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: April 7, 2015
    Assignee: Nuovo Pignone S.p.A.
    Inventors: Iacopo Giovannetti, Massimo Giannozzi, Dino Bianchi, Leonardo Tognarelli, Manuele Bigi, Andrea Massini
  • 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
  • Patent number: 8951009
    Abstract: A system, in certain embodiments, includes an impeller having a plurality of impeller blades coupled to an impeller hub body, wherein each impeller blade is sculpted having a nonlinear profile extending from a hub intersect surface of the impeller blade to a shroud intersect surface of the impeller blade.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: February 10, 2015
    Assignee: Ingersoll Rand Company
    Inventors: Chester V. Swiatek, Mikhail Grigoriev, James Hitt
  • Patent number: 8938975
    Abstract: An inner combustion chamber casing of a turbomachine, which is intended to be placed downstream of a centrifugal compressor, is provided. The casing has the shape of a disc, pierced by a central circle, and includes on its disc at least one guide vane of the drawn-off air. The guide vane extends longitudinally over the disc between the periphery of the disc and the central circle and spreads out axially from the disc so as to form with the downstream face of the centrifugal compressor a guide channel for the air which is drawn off upon exit from the said compressor. The guide vane has a curved shape orienting in a radial direction at the level of its most central end.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: January 27, 2015
    Assignee: SNECMA
    Inventors: Laurent Donatien Behaghel, Frederic Dallaine, Delphine Leroux, Benjamin Philippe Pierre Pegouet
  • Patent number: 8936439
    Abstract: A turbine wheel is disposed about an axis and has a back having a separator disposed thereon, an inner undercut disposed between the separator and the axis, and an outer undercut disposed between the separator and an outer periphery of the back face. The inner undercut is defined by a first radius blending toward the axis and into a first flat section, and further defined by a second radius blending into the first flat section and into the separator.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: January 20, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Loc Quang Duong, Xiaolan Hu, Gao Yang, Anthony C. Jones
  • Patent number: 8932019
    Abstract: A fan wheel (1) is designed as a radial or diagonal fan, comprising a top plate (2) with an inlet port (4), a base plate (6) and a plurality of fan blades (8) distributed around the inlet port (4) and around an axis of rotation (Z). Blade ducts extend (10) respectively between the adjacent fan blades (8). The blade ducts lead radially or diagonally outward from the area of the inlet port (4) and form blow-out ports in the outer region. The blade ducts (10) are designed, with respect to their effective flow cross-section, as large enough that during operation, a turbulent flow with a Reynolds number markedly greater than 2300 is achieved. The top plate (2) or the base plate (6) or both feature a rotationally asymmetrical geometry with a continuous profile, at least in angular sections encompassing the fan blades (8).
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: January 13, 2015
    Assignee: EMB-PAPST Mulfingen GmbH & Co. KG
    Inventors: Katrin Bohl, Marc Schneider, Jürgen Schöne
  • Publication number: 20140377071
    Abstract: A washing machine having a centrifugal fan which may increase a discharge flow rate. The washing machine includes a centrifugal fan adapted to cool a motor, wherein the centrifugal fan comprises a circular plate connected to a shaft of the motor, and a plurality of blades radially arranged around a center of the circular plate, each of the blade includes an inlet portion extending to form an inlet for external air passing therethrough, and a guide bent and inclined from the inlet portion, and an outlet portion bent from the guide to form an outlet for the external air.
    Type: Application
    Filed: February 25, 2014
    Publication date: December 25, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Joo KIM, Eung Ryeol Seo, Hoon Wee, Jin Ki Lee, You Eok Jeon, Kwang Kyu Han
  • Patent number: 8915711
    Abstract: A centrifugal compressor wheel including a hub, a web extending radially from the hub, and a plurality of blades carried by the wheel. The web includes an erosion indicator of the wheel.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: December 23, 2014
    Assignee: Turbomeca
    Inventors: Geoffroy Billotey, Olivier Descubes, Sylvain Gourdant, Olivier Tuot
  • Patent number: 8899932
    Abstract: According to one embodiment, a molten metal impeller is provided. It includes a generally cylindrical graphite body having a plurality of passages extending from a top surface to a side wall. A hub is formed in the center of the graphite body. A ceramic cap member is secured to the top surface of the graphite body. The cap member is comprised of a ring forming a central passage shaped cooperatively to overlap the hub and a plurality of vanes extending radially from the ring to an outer rim. The rim has a height between adjacent vanes which increases in the direction of intended impeller rotation. The rim further has a height which decreases from its radially outer most edge to an inner most edge.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: December 2, 2014
    Assignee: Pyrotek, Inc.
    Inventors: Jason Tetkoskie, Mark A. Bright, Richard S. Henderson
  • Patent number: 8899931
    Abstract: A hub is supported rotatably about an axis of rotation, and the diameter thereof increases from upstream to downstream sides along a fluid flow. A plurality of impeller blades extend radially outward from an outer circumferential surface of the hub. A shroud is formed in a cylindrical shape whose diameter increases from the upstream to downstream sides along the fluid flow and joins outer circumferential ends of the plurality of impeller blades. The impeller blades are composed of upstream blade segments and downstream blade segments bonded at a bonding surface extending in a direction substantially perpendicular to the axis of rotation. The upstream blade segments are integral with at least a portion of the shroud, and the downstream blade segments are integral with at least a portion of the hub. This improves the reliability and performance of an impeller and a compressor.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: December 2, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Akihiro Nakaniwa, Yujiro Watanabe, Toyoaki Yasui, Kazuyoshi Miyagawa, Yuya Konno
  • Patent number: 8845278
    Abstract: A radial turbine includes a radial turbine wheel provided with a main pathway in which blade height progressively increases while curving toward an axial direction from a radial direction. A sub-let is formed on a shroud side of the radial turbine wheel at a position separated from the main inlet in the radial direction and the axial direction. Also, a blade shape that forms the sub-inlet is such that, in a plane orthogonal to the axial line of the radial turbine wheel, a center line of the blade is inclined at a predetermined angle toward the rotation direction with respect to the radial direction.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: September 30, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Hirotaka Higashimori, Masayuki Kawami
  • Patent number: 8784060
    Abstract: A centrifugal fan has a circular main plate driven and rotated by a motor rotary shaft, a plurality of blades fixed to an outer circumferential portion of the main plate and spaced apart at predetermined intervals in a circumferential direction of the main plate, and a side plate attached to ends of the blades opposite to the main plate. An air inlet port is formed at the center of the side plate. The side plate inclines outward in centrifugal directions from the air inlet port and has an arcuate cross section with a predetermined radius of curvature. A dead water region reducing space is formed between the blades and the side plate. The dead water region reducing space forms a smooth flow between the two surfaces of each blade, bringing about desirable blade performance.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: July 22, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Toru Iwata, Zhiming Zheng
  • Patent number: 8764376
    Abstract: A diffuser divider shaped as disc with a central axis, a leading edge disposed at an inner radius about the central axis, a trailing edge disposed at an outer radius about the central axis, an upper surface disposed between the leading edge and the trailing edge, a lower surface disposed between the leading edge and the trailing edge and one or more mounting features configured to mount the disc in a diffuser section configured to receive air compressed by two compressor wheel faces and to direct the compressed air to a volute. Such a divider can define throats in a diffuser section of a compressor assembly. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: July 1, 2014
    Assignee: Honeywell International Inc.
    Inventors: Vai Man Lei, Glenn F. Thompson
  • Patent number: 8764400
    Abstract: A blower for a particulate loader and transfer apparatus is provided. The blower comprises at least one blade having a proximal and a distal end. A drive mechanism rotates the at least one blade in a direction about an axis of rotation. The proximal end of the blade is nearer to the axis of rotation than the distal end of the blade is to the axis of rotation and the blade is angled so that as the blade rotates about the axis, the proximal end of the blade precedes the distal end of the blade.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: July 1, 2014
    Assignee: AG Growth Industries Partnership
    Inventor: Paul Kerr
  • Patent number: 8764418
    Abstract: An impeller comprises an impeller body, a plurality of stems, a blade mounting member, and a plurality of blades. The stems radially extend with one end of each stem fixed to a portion of a circumferential wall of the impeller body in the vicinity of a suction port, and are arranged at intervals in a circumferential direction of the circumferential wall. The stems assist the impeller to suck air Jn an axial direction through a suction port during rotation of the impeller. The blade mounting member is disposed concentrically with the circumferential wall of the impeller body. The other end of each stem is fixed to the blade mounting member. The blades are arranged at intervals in the circumferential direction and extend along an axial line toward a second wall portion, with one end of each blade fixed to the blade mounting member.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: July 1, 2014
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Kevin Yen, Hiromitsu Kuribayashi
  • Patent number: 8757978
    Abstract: A blower impeller includes a substantially cylindrical cup portion, and a plurality of blades arranged on an outer circumferential surface of a circumferential wall portion of the cup portion. The cup portion includes on an inner circumferential surface of the circumferential wall portion thereof a plurality of axially extending first ribs and a plurality of second ribs arranged between the first ribs. The first and second ribs are arranged in a circumferential direction. A virtual envelope joining radially inner end portions of the first ribs has a smaller diameter than that of a virtual envelope joining radially inner end portions of the second ribs.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: June 24, 2014
    Assignee: Nidec Corporation
    Inventor: Hidenobu Takeshita
  • Publication number: 20140169971
    Abstract: An impeller including a blade section, a shroud section, and a hub is made of a monolithic structure. The impeller is made by loading a 3D image file into an additive manufacturing device, using it to generate 2D files which correspond to a plurality of cross-sectional layers of the impeller, and solidifying corresponding portions of pulverant material layers to create the impeller.
    Type: Application
    Filed: December 18, 2012
    Publication date: June 19, 2014
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Venkata R. Vedula, Harold W. Hipsky, Brent J. Merritt, William Louis Wentland
  • Patent number: 8747071
    Abstract: A drain pump that maintains pump performance and reduces noise and vibration accompanying water scooping of a rotary impeller includes a large-diameter blade divided into an inner blade and an outer blade. A radius of an impeller scooping up water is the sum of the lengths of the inner and outer blades in a radial direction. The large-diameter blade is divided at a position where the amount of generated air bubbles is large, and the inner and outer blades are alternately disposed. Accordingly, air bubbles are escaped to a downstream side in a rotational direction, so that the intensity of the collision between the blades and air bubbles is decreased reducing noise caused by the burst of air bubbles and vibration caused by a collision load of the flow of a gas-liquid mixture.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: June 10, 2014
    Assignee: Fujikoki Corporation
    Inventors: Yuya Kato, Shinichi Nemoto, Kenji Yamabiraki, Katsushi Sato
  • Publication number: 20140154080
    Abstract: A grinder includes a generally vertical, rotatable shaft having at least one set of cutter blades driven thereby and a fan assembly mounted on the shaft below the cutter blades in position to receive output therefrom. The fan assembly includes a fan disc secured to the shaft and rotatable therewith. Fan blades are secured to the fan disc in a generally radial orientation. Each fan blade includes a bottom flange secured to a top surface of the fan disc, a web extending upwardly from the bottom flange and a top flange extending outwardly from the web in a direction of rotation of the fan disc. The fan blades are preferably moveably mounted to the fan disc such that the angle of the fan blades relative to a true radial orientation can be adjusted.
    Type: Application
    Filed: February 4, 2014
    Publication date: June 5, 2014
    Inventor: Kyle T. Watts
  • Patent number: 8721263
    Abstract: A centrifugal pump includes at least one impeller (4) and at least one sealing arrangement arranged between the impeller (4) and a housing wall. The sealing arrangement seals a suction side of the impeller (4) with respect to a pressure side of the impeller (4). The sealing arrangement including a seal (12) fastened on the impeller (4) in a rotationally fixed manner.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: May 13, 2014
    Assignee: Grundfos Management a/s
    Inventor: Jorgen Schmidt
  • Patent number: 8721287
    Abstract: A compressor impeller including at least one blade connected to an impeller hub via a junction of curved shape, the blade extending along a defined chord between a leading edge and a trailing edge of the blade. The junction presents the shape of an ellipse that varies along the chord.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: May 13, 2014
    Assignee: Turbomeca
    Inventors: Geoffroy Louis-Henri Marie Billotey, Pierre Biscay, Gilles Cazenave-Larroche, Jean-Philippe Ousty
  • Publication number: 20140119921
    Abstract: An impeller comprising: a top shroud; a bottom shroud, a plurality of vanes extending from the top shroud to the bottom shroud, each said vane including a top edge at a radially inner portion of the vane in contact with the top shroud and a bottom edge at a radially outer portion of the vane in contact with the bottom shroud, such that a radially inner portion of the vane at the bottom edge of each vane is not in contact with or adjacent the bottom shroud and a radially outer portion of the vane at the top edge of each vane is not in contact with or adjacent the top shroud.
    Type: Application
    Filed: December 3, 2013
    Publication date: May 1, 2014
    Applicant: ResMed Motor Technologies Inc.
    Inventors: Barton John KENYON, Nicholas Jerome REED, Andrew WILSON, Ian Malcolm SMITH
  • Patent number: 8708651
    Abstract: The current invention provides significant performance improvements or significant energy savings for fans used in these applications: personal, industrial and automotive cooling, ventilation, vacuuming and dust removal, inflating, computer component cooling, propulsors for unmanned and manned air vehicles, propulsors for airboats, air-cushion vehicles, airships and model aircraft. Additionally, the invention provides higher performance such as higher lift and higher lift efficiency to small air vehicles. These advantages are achieved by using plasma actuators to provide active flow control effectors into thin fan blades and wing.
    Type: Grant
    Filed: October 26, 2008
    Date of Patent: April 29, 2014
    Inventor: David Greenblatt
  • Publication number: 20140112755
    Abstract: A pump assembly and components therefor including an impeller which has flow inducer elements on an inner surface of a front shroud thereof, a flow directing device or strainer having passageways for delivering material to the impeller and at least one flow circulating passageway and a pump casing having an intake section with flow distribution vanes in the region of a feed opening adjacent the intake section.
    Type: Application
    Filed: December 31, 2013
    Publication date: April 24, 2014
    Applicant: Weir Minerals Australia Ltd.
    Inventors: Kevin Edward Burgess, Garth Norman Cantrill
  • Patent number: 8702394
    Abstract: An air boost device such as a turbocharger, wherein the compressor wheel thereof is re-designed to permit die inserts (20), which occupy the air passage and define the blades (4, 5) during a process of forming a wax pattern (21) of a compressor wheel, to be pulled without being impeded by the blades. This modified blade design enables the automated production of wax patterns (21) using simplified tooling. The compressor wheel improves low cycle fatigue, withstands high temperatures and temperature changes, and permits operation at high boost pressure ratio while, on the other hand, having low weight, low inertial drag, and high responsiveness.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: April 22, 2014
    Assignee: BorgWarner, Inc.
    Inventors: David Decker, Stephen I. Roby
  • Patent number: 8678769
    Abstract: A compressor impeller and a method of manufacturing the compressor impeller. The magnesium alloy compressor impeller as a die-cast part comprises a hub shaft part, a hub disk part having a hub surface extending from the hub shaft part in the radial direction, and a plurality of vane parts disposed on the hub surface. The impeller can be manufactured by a die-cast method in which a magnesium alloy heated to a liquidus temperature or higher is supplied into molds with cavities corresponding to the shape of the impeller for a filling time of 1 sec. or shorter, a pressure of 20 MPa or higher is applied to the magnesium alloy in the cavities, and the pressurized state is maintained for a time of 1 sec. or longer.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: March 25, 2014
    Assignees: Hitachi Metals Precision, Ltd., Hitachi Metals, Ltd.
    Inventors: Yasuhiro Kubota, Hirokazu Itoh, Mikio Sasaki