Having Specific Features For Liquid Flow Patents (Class 415/221)
  • Patent number: 10898626
    Abstract: A device for circulatory support of the heart with holding means implanted intracardially in the left or right ventricular outflow of the heart by catheter, using an endovascular method, through a femoral access or a percutaneous transventricular, transseptal, transapical or transvenous access, the holding means comprises anchoring means fixed in the subcommissural triangle underneath the aortic valve and the pulmonary valve, in the flow direction of the blood on the ventricular side of the aortic valve and the pulmonary valve, a pump fixed in the holding means by a catheter, using an endovascular method, through a femoral access or a percutaneous transventricular, transseptal, transapical or transvenous access, the pump can be inserted releasably into the holding means after the holding means has been fixed by the anchoring means in the subcommissural triangles underneath the aortic valve and the pulmonary valve, or is connected to the collapsible and expandable anchoring means.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: January 26, 2021
    Inventor: Michael Siegenthaler
  • Patent number: 10865801
    Abstract: An impeller includes a hub, and a plurality of blades supported by the hub, the blades being arranged in at least two blade rows. The impeller has a deployed configuration in which the blades extend away from the hub, and a stored configuration in which at least one of the blades is radially compressed, for example by folding the blade towards the hub. The impeller may also have an operational configuration in which at least some of the blades are deformed from the deployed configuration upon rotation of the impeller when in the deployed configuration. The outer edge of one or more blades may have a winglet, and the base of the blades may have an associated indentation to facilitate folding of the blades.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: December 15, 2020
    Assignees: TC1 LLC, THE PENN STATE RESEARCH FOUNDATION
    Inventors: Mark W. McBride, Thomas M. Mallison, Gregory P. Dillon, Robert L. Campbell, David A. Boger, Stephen A. Hambric, Robert F. Kunz, James P. Runt, Justin M. Walsh, Boris Leschinsky
  • Patent number: 10801513
    Abstract: A compressor having a housing and a rotor, the rotor having an impeller at least on one side; a compressor chamber being formed between the impeller and the housing, the rotor being rotationally mounted, an annular sealing channel being formed between the rotor and the housing, the sealing channel being routed from the compressor chamber to a zone having a lower pressure; a throttling section being provided in the sealing channel; the sealing section being configured in closer proximity to the low-pressure zone than to the compression chamber.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: October 13, 2020
    Assignee: Robert Bosch GmbH
    Inventor: Alister Clay
  • Patent number: 10644630
    Abstract: A turbomachine and method for operating a turbomachine comprising a first rotatable component and a second rotatable component each defining a rotatable speed mechanically independent of one another, and an electric machine electrically coupled to the first rotatable component and the second rotatable component such that a load level relative to the first rotatable component and the second rotatable component is adjustable is generally provided.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: May 5, 2020
    Assignee: General Electric Company
    Inventors: Justin Paul Smith, Kurt David Murrow, Darek Tomasz Zatorski, Patrick Michael Marrinan
  • Patent number: 10561772
    Abstract: The invention relates to a pump device having a pump (8) and an energy supply device (5, 18), wherein the pump has a conveying element (9, 11) which conveys a fluid by means of supplied energy, wherein the pump has a transport state and an operating state, and wherein at least of first element (9, 9a, 10, 10?, 11) of the pump has a different shape and/or size in the transport state than in the operating state. The operating safety of such a pump device is increased by a detection device (12, 20, 21, 22, 23, 24, 25, 27, 28, 29) which detects whether at least the first element is in the operating state with respect to shape and/or size by means of a sensor.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: February 18, 2020
    Assignee: ECP ENTWICKLUNGSGESELLSCHAFT MBH
    Inventor: Joerg Schumacher
  • Patent number: 10473096
    Abstract: A modular pump platform includes a pump head module, a pump motor module, an electronics module and a separable tray. The pump motor module includes a pump motor having a rotary output removably coupled to a crank shaft of the pump head, the pump motor being one of multiple types of pump motors, and the pump motor module being detachably connected to the pump head module. The electronics module includes an electronic control circuit configured to control operation of the pump motor, the electronic control circuit being one of multiple types of electronic control circuits corresponding to the types of pump motors. Each of the pump head module, the pump motor module and the electronics module is detachably connected to the separable tray. At least the pump motor module is interchangeable with another pump motor module comprising a pump motor of another type.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 12, 2019
    Assignee: Agilent Technologies, Inc.
    Inventors: John Calhoun, Vannie Yucong Lu, George Galica, Robert Langellotti, James Pierce
  • Patent number: 10294949
    Abstract: A multistage turbomachine is disclosed, comprising a casing with a fluid inlet and a fluid outlet and a plurality of stages arranged in the casing. A flow path extends from the fluid inlet to the fluid outlet through the sequentially arranged stages. Each stage is comprised of a rotating impeller and an electric motor embedded in the casing and arranged for rotating the impeller at a controlled rotary speed. Each electric motor comprises a motor rotor, arranged on the impeller and integrally rotating therewith, and a motor stator stationarily arranged in the casing. Pairs of sequentially arranged impellers are configured for rotation in opposite directions.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: May 21, 2019
    Assignee: Nuovo Pignone Srl
    Inventors: Lorenzo Bergamini, Marco Cipriani
  • Patent number: 10039873
    Abstract: A circulatory support device for an in-vivo heard includes a pump-holder that is placed in an outflow tract of the heart. The pump-holder includes an anchor that is placed in the subcommissural triangles underneath the aortic valve or the pulmonary valve of the heart in a blood flow direction. The device also includes a pump that is placed in the pump-holder. The pump may be placed in the pump holder after the pump-holder is placed in the subcommissural triangles. Once in place, the circulatory support device does not extend through the aortic valve or the pulmonary valve.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: August 7, 2018
    Inventor: Michael Siegenthaler
  • Patent number: 9803645
    Abstract: A cooling fan includes a boss section (12) connected to a rotary drive source, a plurality of blades (13) protruding outward from the boss section in a radial direction, and a cylindrical ring member (14) configured to annularly connect the vicinities of end sections outside in the radial direction of the plurality of blades. The plurality of blades (13) protruding outward from the boss section (12) in the radial direction are connected by the cylindrical ring member (14) in the vicinity of the end section outside in the radial direction. An air inlet groove (16) is formed at an end section in an axial direction of an air suction side of the ring member (14). The air inlet groove (16) is disposed between front regions in the rotation direction of all of the blades (13) on the ring member (14) and front regions in the rotation direction of the blades (13) adjacent thereto.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: October 31, 2017
    Assignee: MITSUBA CORPORATION
    Inventors: Hidetake Ota, Hiroshi Yokoyama, Yukio Osawa
  • Patent number: 9795727
    Abstract: The invention relates to a pump device having a pump (8) and an energy supply device (5, 18), wherein the pump has a conveying element (9, 11) which conveys a fluid by means of supplied energy, wherein the pump has a transport state and an operating state, and wherein at least one first element (9, 9a, 10, 10?, 11) of the pump has a different shape and/or size in the transport state than in the operating state. The operating safety of such a pump device is increased by a detection device (12, 20, 21, 22, 23, 24, 25, 27, 28, 29) which detects whether at least the first element is in the operating state with respect to shape and/or size by means of a sensor.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: October 24, 2017
    Assignee: ECP ENTWICKLUNGSGESELLSCHAFT MBH
    Inventor: Joerg Schumacher
  • Patent number: 9744281
    Abstract: The invention relates to a device for circulatory support of the heart and to a corresponding method with a holding means which is configured such that it can be implanted intracardially in the left and/or right ventricular outflow tract of the heart by means of a catheter, preferably using an endovascular method, through a femoral access and/or a percutaneous transventricular, transseptal, transapical or transvenous access, wherein the holding means comprises an anchoring means which can be fixed in the subcommissural triangle underneath the aortic valve and the pulmonary valve, respectively in the flow direction of the blood on the ventricular side of the aortic valve and the pulmonary valve, respectively, a pump which is configured such that it can be fixed in the holding means by means of a catheter, preferably using an endovascular method, through a femoral access and/or a percutaneous transventricular, transseptal, transapical or transvenous access, wherein the pump (a) can either be inserted releasably
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: August 29, 2017
    Inventor: Michael Siegenthaler
  • Patent number: 9358330
    Abstract: The invention relates to a pump device having a pump (8) and an energy supply device (5, 18), wherein the pump has a conveying element (9, 11) which conveys a fluid by means of supplied energy, wherein the pump has a transport state and an operating state, and wherein at least one first element (9, 9a, 10, 10?, 11) of the pump has a different shape and/or size in the transport state than in the operating state. The operating safety of such a pump device is increased by a detection device (12, 20, 21, 22, 23, 24, 25, 27, 28, 29) which detects whether at least the first element is in the operating state with respect to shape and/or size by means of a sensor.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: June 7, 2016
    Assignee: ECP ENTWICKLUNGSGESELLSCHAFT MBH
    Inventor: Joerg Schumacher
  • Patent number: 9206816
    Abstract: An axial fan has a hub whose axis coincides with the rotational axis of the fan, a plurality of vanes that extend from the hub, and an outer ring which is coaxial with the hub. The ring has a front portion and a rear portion. The outer ring defines within itself a passage towards the rear portion. The radially outermost ends of the vanes are connected to the inner surface of the passage. The rear portion of the ring has a plurality of appendages that extend axially away from the front portion of the ring, and which alternate circumferentially with corresponding intermediate recesses. Each vane has its radially outermost end connected to an inner surface of one of the appendages.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: December 8, 2015
    Assignee: Johnson Electric S.A.
    Inventors: Fabio Olmo, Gabriele Milanese
  • Patent number: 8992163
    Abstract: An impeller includes a hub, and a plurality of blades supported by the hub, the blades being arranged in at least two blade rows. The impeller has a deployed configuration in which the blades extend away from the hub, and a stored configuration in which at least one of the blades is radially compressed, for example by folding the blade towards the hub. The impeller may also have an operational configuration in which at least some of the blades are deformed from the deployed configuration upon rotation of the impeller when in the deployed configuration. The outer edge of one or more blades may have a winglet, and the base of the blades may have an associated indentation to facilitate folding of the blades.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: March 31, 2015
    Assignees: Thoratec Corporation, The Penn State Research Foundation
    Inventors: Mark W. McBride, Thomas M. Mallison, Gregory P. Dillon, Robert L. Campbell, David A. Boger, Stephen A. Hambric, Robert F. Kunz, James P. Runt, Justin M. Walsh, Boris Leschinsky
  • Publication number: 20140246859
    Abstract: Hydromotive machines, e.g. hydroturbines and pumps with integral low head loss shut off valves are described. Arrays of such hydroturbines facilitate power generation within the limited space available at pre-existing gated water control structures. An adjustable pitch hydroturbine runner particularly suited for use with the integral loss shut-off valve provides higher power output and higher specific speed than prior art hydroturbines at low head hydroelectric projects. Arrays of pumps in accordance with the present invention provide high discharge capacity in a limited space, with each individual pump within the array having an integral low head loss valve for shut off and backflow prevention.
    Type: Application
    Filed: July 15, 2012
    Publication date: September 4, 2014
    Inventor: Henry Obermeyer
  • Patent number: 8790080
    Abstract: A turbine casing segment is disclosed. In one embodiment, a turbine casing segment is disclosed including: a plurality of stage segments; a plurality of ledge ring partitions separating the plurality of stage segments, wherein at least one of the plurality of ledge ring partitions has an axially extending aperture therethrough; and a substantially rounded extraction aperture located flush with an inner surface of one of the plurality of stage segments.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: July 29, 2014
    Assignee: General Electric Company
    Inventors: Rajendra Gonoor, Erik Eduardo Lopez Partida, Daniel Ross Predmore
  • Patent number: 8702387
    Abstract: The present invention relates generally to propulsion systems, and, more particularly, to a propulsion system including an axial flow water pump assembly and a laminar flow box assembly for generating a streamline laminar slipstream of water velocity that is used in aquatic therapy, aquatic sport fitness rehabilitation, aquatic rehabilitation, swimming, and a variety of other functional therapy and training modalities.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: April 22, 2014
    Assignee: Vision Aquatics, Inc.
    Inventor: Peter J. Gillette
  • Patent number: 8550771
    Abstract: An inducer for vertical flow, cryogenic liquid centrifugal pumps comprising a stationary outer housing portion having an inlet and an outlet, the inlet located at a lower end and the outlet located at an upper end, the housing further having an inner wall portion with one or more spiral grooves formed in the inner wall portion, the grooves defining a hollow opening in the inner wall portion that spiral in a first direction, and an inner rotating impeller mounted on a rotating center shaft, the impeller having at least one curved blade which defines a curved, helicoid plane surface in which the slope of the plane increases as the distance from the center axis increases, the impeller rotating in a second direction which is in counter rotation to the first direction.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: October 8, 2013
    Assignee: Ebara International Corporation
    Inventor: Everett Russell Kilkenny
  • Patent number: 8475113
    Abstract: A hydroelectric power device equipped with a casing member that has a channel that passes through from an opening on the water entry side towards an opening on the water discharge side, a rotor having a plurality of blades that are integrally fixed respective to the rotating shaft and are disposed inside the channel of the casing member, and a tapered portion, that is provided on the opening on the water entry side of the casing, and that is formed such that the cross-sectional area of the tapered portion is gradually decreased towards the downstream side.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: July 2, 2013
    Assignee: Seabell International Co., Ltd.
    Inventor: Yuji Unno
  • Patent number: 8475125
    Abstract: Tip shrouds on last stage buckets for condensing steam turbines may create significant blockage and form a vortex at the wall of the steam guide of the diffuser, causing the steam flow to separate from the wall of the steam guide. Vortex formation reduces the effective flow area for the remaining fluid to diffuse, causing poor recovery. An inward radial depression is provided of a predetermined depth and distance along an outer steam guide, which redirects the tip leakage flows slightly downward, reducing a shroud blockage effect. This deflection assists the main flow in rejoining the steam guide, thereby making the diffuser more effective.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: July 2, 2013
    Assignee: General Electric Company
    Inventors: Sudhakar Neeli, Prakash Bavanjibhai Dalsania
  • Patent number: 8408491
    Abstract: A nacelle assembly includes an inlet lip section and an airfoil adjacent to the inlet lip section. The airfoil is selectively moveable between a first position and a second position to adjust the flow of oncoming airflow and to influence an effective boundary layer thickness of the nacelle assembly.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: April 2, 2013
    Assignee: United Technologies Corporation
    Inventors: Ashok K. Jain, Michael Winter
  • Patent number: 8376699
    Abstract: The Vortex Hydro Turbine takes water through an inlet from the current in which it is submerged. The water inlet reduces the cross-sectional area for the water that flows into the vortex chamber and thus increases the velocity of the water into a specially designed cylindrical chamber. The top of the chamber is specifically left open allowing the water now traveling at an increased velocity to disperse toward outlet as it rotates around the chamber, and then reintegrate into the existing environmental regime. This expansion creates a low pressure area in the center of the vortex chamber that is applied to the back side of a turbine blade system either directly or through a connecting tube depending on configuration.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: February 19, 2013
    Inventor: Martin D Hallett
  • Patent number: 8376687
    Abstract: A steam turbine includes a rotor having a plurality of early stages and a stator portion surrounding a portion of the rotor and arranged such that a leakage region exists between the stator portion and the rotor and having a cooling steam channel that passes cooling steam from one portion of the stator portion to the leakage region. The turbine also includes at least one cooling steam transmission channel axially displaced about the rotor that receives the cooling steam from the leakage region and provides it to at least a portion of the early stages.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: February 19, 2013
    Assignee: General Electric Company
    Inventors: Ravi Shankar Venkata Kasibhotla, Anantha Padmanabhan Bhagavatheeswaran, Fred Thomas Willett, Jr.
  • Publication number: 20130028729
    Abstract: A power generation system with a plurality of mechanical devices is described. Each mechanical device has energy-capturing blades and a hydraulic pump. A power generation arrangement remote of the mechanical devices is also disclosed. Each mechanical device can include a device output conduit configured to output a pressurized output flow and a device input conduit for receiving a low pressure flow. The power generation arrangement can comprise a plurality of hydraulic generators, such that each mechanical device can be connected to the plurality of hydraulic generators. A method for power generating is further disclosed, where a pressurized output flow can be delivered in parallel from the mechanical devices to the plurality of hydraulic generators. Some of the hydraulic generators can be switched off when the power transmitted from the blades is low.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 31, 2013
    Inventor: Jack A. JONES
  • Publication number: 20130022456
    Abstract: Axial flow action turbine utilizing the energy of water entering axially and tangentially into a turbine runner with cylindrical hub equipped with radial oriented buckets having cross-section consisting of segments of cylindrical tube where the segments are angularly offset along the bucket's radial axis and where the water exits the turbine runner axially.
    Type: Application
    Filed: July 20, 2011
    Publication date: January 24, 2013
    Inventor: Kalman N. Lehoczky
  • Publication number: 20130011254
    Abstract: An air moving device includes a housing member, a rotary fan assembly, and a nozzle, the housing including a plurality of air vents. The air moving device further includes at least one anti-drip structure in the form of a peripheral lip member for inhibiting water from entering the air moving device. The air moving device further includes a baffle member that acts to redirect a volume of air that enters through the plurality of air vents.
    Type: Application
    Filed: June 13, 2012
    Publication date: January 10, 2013
    Applicant: AIRIUS IP HOLDINGS, LLC
    Inventor: Raymond B. Avedon
  • Publication number: 20120308382
    Abstract: A propeller nozzle for watercraft includes a stationary propeller and a nozzle ring that shrouds the propeller and can be pivoted by means of a nozzle shaft. The nozzle shaft is provided in the form of a hollow body in order to achieve a constructively simple and simultaneously stable connection between the nozzle shaft and the nozzle ring.
    Type: Application
    Filed: February 22, 2011
    Publication date: December 6, 2012
    Applicant: BECKER MARINE SYSTEMS GMBH & CO. KG
    Inventor: Dirk Lehmann
  • Publication number: 20120248776
    Abstract: An offshore platform includes a support structure for supporting a workstation in a body of water at an offshore location. The support structure has a mounting formation and at least one duct is mounted to the mounting formation. The duct is configured to receive an oscillating water column from the body of water wherein oscillations of the oscillating water column generate a fluid flow for driving an energy extraction module.
    Type: Application
    Filed: December 24, 2010
    Publication date: October 4, 2012
    Applicant: OCEANLINX LTD.
    Inventors: Ali Mohammad Baghaei Nanehkaran, Tom Deniss
  • Publication number: 20120201672
    Abstract: A shaft power plant (1) for generating electricity by energy conversion of a discharge between a headwater (2) and a tailwater (6), comprising a vertical shaft (7), the top (10) of which forms an inflow plane (11) which is parallel to the bed and extends below the water level (3) of the headwater, wherein the shaft (7) is open toward the top and is closed by a base (9) at its bottom end, a unit (15) composed of a turbine (16) and an electrical machine (17), wherein the unit (15) is arranged entirely under water in the shaft (7) and wherein the turbine (16) is arranged for water to pass through vertically, and an outflow (24), which is connected to the turbine (16), represents a closed flow channel and leads through a through-passage (28) in the shaft (7) to the tailwater (6), wherein, in a horizontal plane of a turbine runner (19) of the turbine (16), a first cross-sectional area of the shaft (7) is much larger than a second cross-sectional area taken up by the turbine runner (19).
    Type: Application
    Filed: July 8, 2010
    Publication date: August 9, 2012
    Applicant: Technische Universit√§t M√ľnchen
    Inventors: Albert Sepp, Peter Rutschmann
  • Patent number: 8152495
    Abstract: A mixed flow fan assembly includes an electric motor, an impeller having a hub enclosing the motor, and a plurality of fan blades spaced circumferentially around the hub. The fan assembly also includes an axis of rotation extending through the hub, an annular venturi radially surrounding the impeller, and a mounting plate with an opening to allow for axial airflow positioned on one open end of the venturi. The venturi has at least one elongated slot to allow for radial airflow from the fan assembly, the slot being oriented substantially perpendicular to the axis of rotation and having a generally rectangular shape. Rotation of the hub and the fan blades caused by the electric motor generates both axial and radial airflow through the fan assembly.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: April 10, 2012
    Assignee: Ametek, Inc.
    Inventors: Andrew Lacey Boggess, Jr., Gennady M. Levin
  • Patent number: 8147284
    Abstract: A submersible propulsor unit, comprising: a duct defined between a duct hub and a duct wall, the duct having a water inlet and a water outlet, a propeller means rotatably mounted within the duct, and an array of stator vanes extending between the duct hub and the duct wall, wherein the array of stator vanes comprises stator vanes having a first stiffness and stator vanes having a second stiffness.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: April 3, 2012
    Assignee: Rolls-Royce plc
    Inventors: Simon Banks, John Owen Fowler
  • Publication number: 20120068464
    Abstract: The special circumstances of working with hydroelectric turbines in pipes require innovations in blade shapes and systems that are presented here. An example is streamlining of the blades greater than that found in traditional hydroelectric turbines.
    Type: Application
    Filed: May 26, 2010
    Publication date: March 22, 2012
    Inventors: Daniel Farb, Avner Farkash, Gadi Hareli, Ken Kolman, Joe Van Zwaren
  • Patent number: 8123475
    Abstract: A heat dissipation fan includes a fan frame, a bearing assembly, a stator and a rotor. The fan frame includes a base and a central tube. The central tube includes an open top end and an open bottom end. The base defines a receiving concave at a bottom surface thereof. The receiving concave communicates with the central hole. A top wall is formed by the base over the concave. A sidewall is formed between the top wall and the bottom surface of the base and surrounds the concave. A plurality of first locking units extend from the top wall into the receiving concave. The bearing assembly includes an oil sealing cover for sealing the open bottom end of the central tube. The oil sealing cover includes a plurality of second locking units which are detachably interlocked with the first locking units to mount the oil sealing cover to the base.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: February 28, 2012
    Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Zhi-Ya Yang, Wen-Gao Wang
  • Publication number: 20110293416
    Abstract: There is provided a hydropower plant having a flow passage in the form of an S-pipe and having first, second and third portions. The flow passage has a first diameter and a first center line in the first portion and a second diameter and a second center line in the third portion. A spacing is provided between the first and second center lines. The hydropower plant further has turbine blades in the first portion and a generator coupled to the turbine blades by a shaft in the third portion. The flow passage substantially comprises steel in the region of the generator.
    Type: Application
    Filed: August 24, 2009
    Publication date: December 1, 2011
    Inventor: Rolf Rohden
  • Patent number: 8068339
    Abstract: There is provided an axial fan apparatus including an axial-flow impeller, a drive unit, and a housing. The axial-flow impeller is capable of rotating and includes a plurality of blades inclined with respect to a rotational axis direction. The drive unit rotates the axial-flow impeller. The housing is mounted with the drive unit, and includes a sidewall, and a plurality of slits that circulate gas. The sidewall is provided around the axial-flow impeller. The plurality of slits are provided to the sidewall and inclined with respect to the rotational axis direction in a direction opposed to a direction in which the plurality of blades incline.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: November 29, 2011
    Assignee: Sony Corporation
    Inventors: Shun Kayama, Yukiko Shimizu, Kazutoshi Yamamoto
  • Patent number: 7972108
    Abstract: A turbine for a hydroelectric power plant intended to equip a water stream at the level of a very low head lower than 10 meters, and preferably from 1 to 5 meters, comprising a helix-shaped wheel, the ratio between the kinetic energy of the water flow coming out of the wheel and the potential energy of the head being smaller than 20%.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: July 5, 2011
    Inventor: Jacques Fonkenell
  • Publication number: 20110142606
    Abstract: A pump for transferring molten metal includes an intake tube, a motor, a rotor positioned at least partially within the bottom end of the intake tube, a rotor shaft positioned at least partially in the intake tube, the rotor shaft having a first end attached to the motor and a second end attached to the rotor. An overflow conduit is attached to the intake tube. The pump does not include a pump housing and preferably does not include a superstructure, so it is relatively small, light and portable. In use, the motor drives the rotor shaft and rotor to generate a flow of molten metal upward into the intake tube and into the overflow conduit where it is discharged.
    Type: Application
    Filed: August 9, 2010
    Publication date: June 16, 2011
    Inventor: Paul V. Cooper
  • Publication number: 20110058929
    Abstract: A hydrokinetic turbine system, including a plurality of hydrokinetic turbines is installed on a bed of a body of water. Each turbine has a shroud with a forward entrance portion and rear exit portion. The shroud includes a propeller disposed in a middle portion thereof. An inner surface of the shroud includes a plurality of rifling vanes formed therein to induce water entering the forward entrance portion to rotate in a vortex-like fashion. A plurality of pre-spin guard blades disposed adjacent the forward entrance portion also induce rotation of water and serve to provide a barrier preventing objects from passing into the forward entrance portion. A plurality of stabilizers extending from an exterior surface of the shroud that position the forward entrance portion in the direction of current flow.
    Type: Application
    Filed: September 10, 2010
    Publication date: March 10, 2011
    Inventors: Timothy Smith, Eric Otte
  • Publication number: 20110058937
    Abstract: A shrouded wind turbine comprises a shroud disposed about an impeller. The impeller surrounds a nacelle body which is shaped to enhance smooth flow of wind through the impeller. Some embodiments include an inlet and an outlet in the nacelle body, allowing airflow through an interior cavity. Other nacelle bodies may be tapered, flared, include mixing lobes around a trailing edge, or may have other shapes that enhance fluid flow. Some nacelle bodies include an annular groove that promotes flow attachment. Maintaining airflow attachment to the nacelle body within the turbine increases the energy generation capacity of the wind turbine.
    Type: Application
    Filed: June 4, 2010
    Publication date: March 10, 2011
    Applicant: FLODESIGN WIND TURBINE CORPORATION
    Inventors: Walter M. Presz, JR., Michael J. Werle, Thomas J. Kennedy, III, William Scott Keeley
  • Publication number: 20100303627
    Abstract: A turbine stage includes a circumferentially distributed row of adjacent airfoils between which there is a flow passage. The passage has a surface, which in its unmodified form, defines a datum plane. A channel, located in the passage, extends in the direction of an airfoil pressure face from a point towards a leading edge line to a point towards a trailing edge line. The channel includes two channel walls angled relative to the datum plane. Relative to the datum plane, the channel has a low point, two high points, and a channel height, which is measured between the low point and the highest one of the high points. The channel provides a means to reduce secondary flow losses.
    Type: Application
    Filed: June 2, 2010
    Publication date: December 2, 2010
    Applicant: ALSTOM Technology Ltd
    Inventors: Benjamin MEGERLE, Thomas MOKULYS, Said HAVAKECHIAN
  • Patent number: 7828511
    Abstract: An axial tip turbine driven pump in which a first fluid pumped by an inducer is driven by a second fluid that reacts with a turbine blade extending from a shroud on the inducer. The inducer includes a set of screw thread blades and a second set of partial blades that are covered by a shroud in the aft section of the inducer. A row of turbine blades extends from the shroud and into a manifold that forms the outer casing for the pump. The fluid flow through the manifold reacts with the turbine blades and drives the inducer to pump the fluid from the inlet and through guide vanes downstream from the inducer. The fluid passing through the turbine blades is collected in an outlet collector manifold and discharged into the fluid flowing through the guide vanes. The inducer with the turbine blades is rotatably supported within the housing formed by the guide vane support member and the manifold casing. The swirl flow direction of the turbine blades is opposite to that of the swirl flow in the inducer.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: November 9, 2010
    Assignee: Florida Turbine Technologies, Inc.
    Inventors: Alex Pinera, Frank W Huber
  • Patent number: 7789617
    Abstract: A suction stage for a pump with a centrifugal wheel, the suction stage including a rotational impeller equipped with a hub and arranged upstream of the centrifugal wheel, the suction stage further including a diffuser arranged between the impeller and the centrifugal wheel, the diffuser including a plurality of blades. The hub has a downstream surface extending axially so as to converge toward the centrifugal wheel, and the blades of the diffuser have free ends, the blades protruding radially toward the downstream surface.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: September 7, 2010
    Assignee: SNECMA
    Inventors: Fabien Wahl, Jean-Michel Nguyen Duc, Fabien Tessier, Sebastien Boufflert
  • Patent number: 7731479
    Abstract: A fan includes a fan housing and an impeller. The fan housing includes a frame, a base disposed in the frame, a plurality of stationary blades disposed between the frame and the base, and a plurality of airflow-guiding elements extending inward from the frame and toward the base. The airflow-guiding elements and the stationary blades are alternately arranged. The impeller is disposed in the fan housing.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: June 8, 2010
    Assignee: Delta Electronics, Inc.
    Inventors: Pei-Yu Chang, Tsu-Liang Lin, Wen-Shi Huang
  • Patent number: 7726939
    Abstract: A heat-dissipating fan with an upward air-guiding member is provided. The heat-dissipating fan includes a housing, an impeller having a hub and a plurality of blades disposed around the hub, a base disposed inside the housing for supporting the impeller thereon, and an air-guiding member disposed between the base and the housing, wherein the air-guiding member has at least one inclined edge on the windward side or its opposite side relative to the horizontal line perpendicular to the axis of the heat-dissipating fan.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: June 1, 2010
    Assignee: Delta Electronics, Inc.
    Inventors: Chin-Hung Lee, Shun-Chen Chang, Kuo-Cheng Lin, Wen-Shi Huang, Hsiou-Chen Chang
  • Patent number: 7658589
    Abstract: Turbine system including a turbine and a tubular arrangement having an exit opening. The tubular arrangement is arranged on a downstream side of the turbine. At least one flow controlling device at least partially prevents a fluid flow through the tubular arrangement from becoming detached from the tubular arrangement. The at least one flow controlling device is positioned within the fluid flow and in an area of the exit opening. The turbine system is configured to operate efficiently in an environment wherein at least an upper edge of the exit opening is arranged above a downstream liquid level.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: February 9, 2010
    Assignee: VA Tech Hydro GmbH
    Inventor: Alois Nichtawitz
  • Publication number: 20090238688
    Abstract: A fluid flow machine includes an annulus duct (2) formed between a casing (1) and a rotor drum (3), which is rotatable about a machine axis (4). At least one row of rotor blades (6) is arranged in the annulus duct (2), with the latter forming a main flow path and with at least one fluid injector nozzle (8) being arranged in the area of a wall of the casing (1) and/or of the rotor drum (3). At least part of the injector nozzle (8) protrudes into the main flow path (9) and is provided for the generation of a jet which is tangentially directed to the wall of the main flow path.
    Type: Application
    Filed: March 20, 2009
    Publication date: September 24, 2009
    Inventor: Volker Guemmer
  • Patent number: 7568885
    Abstract: Novel twisted blades with an air foil for use with air conditioner condensers and heat pumps that provide improved airflow efficiency to minimize operating power requirements having an overall diameter across the blades being approximately 19 inches, and approximately 27.6 inches. The blades (AC-A) can run at approximately 840 rpm to produce approximately 2200 cfm of air flow using approximately 110 Watts of power from an 8-pole motor. Using an OEM 6-pole ? hp motor produced approximately 2800 cfm with approximately 144 Watts of power while running the blades at approximately 1100 rpm. Power savings were 25% (50 W) over the conventional configuration. A second version of the fan (AC-B) with some refinements to the flow geometry produced a similar air flow while using only 131 W of power at 1100 rpm. Power savings were 32% (62 W) over the conventional configuration. Embodiments can include two, three, four and five blades equally spaced apart from one another about hubs.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: August 4, 2009
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Danny S. Parker, John Sherwin, Bart Hibbs
  • Patent number: 7513755
    Abstract: An in-line motor and pump assembly is supported at the bottom of a fuel storage tank by a pipe and an internal concentric conduit for housing electrical conductors extending therewithin to the motor. An impeller, coaxial with the rotor of the motor, draws the fuel into an annular passageway surrounding the stator of the motor. Further passageways convey the fuel to an annular passageway defined between the pipe and the conduit for discharge external of the storage tank. A low pressure environment attendant the inflow of the fuel is used to channel fuel for lubrication and cooling purposes to a lower journal bearing and thrust bearing supporting a common shaft for the impeller and the motor. A high pressure environment attendant outflow of fuel is used to channel fuel for lubrication and cooling purposes to a journal bearing supporting the upper end of the shaft.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: April 7, 2009
    Assignee: Vaporless Manufacturing, Inc.
    Inventors: Penrod Geisinger, Mark C. Johnson, Jason L. Addink, Scott D. Klopfenstein, Gregory E. Young
  • Publication number: 20090060736
    Abstract: A compressor 13, for example for a gas turbine engine (10, FIG. 1), comprises a circumferentially extending static casing component 20 defining a generally axially extending main gas flow path 24. The compressor also includes a rotating aerofoil arrangement 26 comprising an aerofoil support 30 and a plurality of aerofoils 28 extending radially from the aerofoil support 30 into the main gas flow path 24. The aerofoil support 30 and the circumferentially extending static casing component 20 define a circumferentially extending generally radial passage 40 having an outlet 42 in communication with the main gas flow path 24 through which leakage air may flow into the main gas flow path 24, and the static casing component 20 includes a continuous circumferentially extending projection formation 44 projecting into the radial passage 40 to control the flow of leakage air into the main gas flow path 24.
    Type: Application
    Filed: August 18, 2008
    Publication date: March 5, 2009
    Applicant: ROLLS-ROYCE PLC
    Inventor: Giulio Zamboni
  • Patent number: 7481619
    Abstract: A high efficiency, low-noise fan ring for use with a heat exchanger having an annular fan ring body attached to a coaxial mounting ring. The fan ring body extends in a substantially perpendicular direction from an inner periphery of the mounting ring. The annular body has a circumferential periphery profile defined by a plane coincident the center axis and an inner surface of the fan ring body. The periphery profile includes a transition portion and a curved portion. The transition portion extends in a substantially perpendicular direction from the mounting ring and attaches to an end of the curved portion. In order to reduce noise and increase uniformity of airflow, the length of the curved portion of the periphery profile is sufficient long to reduce recirculation of air entering the fan ring body.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: January 27, 2009
    Assignee: York International Corporation
    Inventors: Charles Borromeo Obosu, Mallikarjuna Sarma Chitti