Of Adjustable Runner, Blade, Shaft Or Bearing Patents (Class 415/33)
  • Patent number: 8727699
    Abstract: One embodiment of the present invention is a damping system for rotating machinery such as gas turbine engines. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for damping systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application shall become apparent from the description and figures provided herewith.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: May 20, 2014
    Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies, Inc.
    Inventors: Daniel Kent Vetters, Timothy Hoffmann, Steven Arlen Klusman
  • Publication number: 20140097620
    Abstract: The present invention relates to a device and method for capturing the kinetic energy of a fluid and converting it to rotational, electrical or mechanical energy, the device including a rotating bar mechanism for enabling rotation of a flow-capturing blade around a central axis of the device while retaining the flow-capturing blade in an orientation perpendicular to the fluid flow direction throughout the rotation cycle.
    Type: Application
    Filed: May 29, 2012
    Publication date: April 10, 2014
    Inventor: Tzach Harari
  • Publication number: 20140069724
    Abstract: Systems, methods, and devices are provided to generate a stable supply of electrical power in a drill string. In one example, a downhole turbine generator includes a turbine, a speed governor, and an alternator. The turbine may transform hydraulic power of a first fluid medium into rotational power of a rotating shaft. The speed governor may reduce the rotational power of the rotating shaft in a variable amount that depends on the speed of the rotating shaft. Specifically, weighted arms may shear a second fluid medium more when the speed is higher and less when the speed is lower. The shearing of the second fluid medium may generate a countervailing torque on the rotating shaft to reduce the rotational power of the rotating shaft. The alternator then may produce a generally stable supply of electrical power from the rotational power of the rotating shaft.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 13, 2014
    Applicant: Schlumberger Technology Corporation
    Inventor: Olivier Amsellem
  • Patent number: 8657558
    Abstract: Methods, apparatus, and products are disclosed for improving the airflow exiting a blower that has one or more adjustable guide vanes that are affixed to the blower at one or more pivot points located in an outlet of the blower that include: determining a rotational speed of an impeller in the blower and adjusting a position of at least one of the adjustable guide vanes in dependence upon the rotational speed of the impeller.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: February 25, 2014
    Assignee: International Business Machines Corporation
    Inventors: Michael S. June, Jason A. Matteson, Mark E. Steinke
  • Patent number: 8641361
    Abstract: Methods, apparatus, and products are disclosed for improving the airflow exiting a blower that has one or more adjustable guide vanes that are affixed to the blower at one or more pivot points located in an outlet of the blower that include: determining a rotational speed of an impeller in the blower and adjusting a position of at least one of the adjustable guide vanes in dependence upon the rotational speed of the impeller.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: February 4, 2014
    Assignee: International Business Machines Corporation
    Inventors: Michael S. June, Jason A. Matteson, Mark E. Steinke
  • Publication number: 20110250052
    Abstract: Methods and apparatus are provided for limiting the load on a rotor support structure when a rotationally mounted rotor becomes imbalanced. The rotor is rotationally mounted within a plurality of circumferentially spaced variable volume hydraulic fluid receptacles that at least engage the rotor and have hydraulic fluid disposed therein. Each of the variable volume hydraulic fluid receptacles is fluidly connected to a substantially fixed volume hydraulic fluid receptacle that has hydraulic fluid disposed therein and is coupled to the rotor support structure. When the rotor becomes imbalanced, the hydraulic fluid is continuously moved between the variable volume hydraulic fluid receptacles and the substantially fixed volume hydraulic fluid receptacle.
    Type: Application
    Filed: April 12, 2010
    Publication date: October 13, 2011
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventor: Brian Cottrell
  • Publication number: 20110229300
    Abstract: In a method for blade load reduction control of a rotor of a wind turbine, the rotor includes a plurality of blades, and a pitch angle of each blade is controllable by an actuator. The method includes measuring mechanical load parameters on the rotor, providing control for a collective pitch blade setting based on a rotor speed; providing individual pitch control including transforming the mechanical load parameters from a rotational reference frame to a mechanical load on the rotor in a fixed reference frame; determining from the mechanical load two multi-blade pitches; correcting the multi-blade pitches to corrected multi-blade pitches using actuator limitations; inversely transforming the corrected multi-blade pitches to an individual pitch deviation for each blade in the rotational reference frame; adding up for each blade, the individual pitch deviation to the collective pitch to form an individual pitch; and setting each blade to the respective individual pitch.
    Type: Application
    Filed: March 16, 2010
    Publication date: September 22, 2011
    Applicant: STICHTING ENERGIEONDERZOEK CENTRUM NEDERLAND
    Inventors: S.K. KANEV, Jan Schuurmans, Timotheus Gerardus VAN ENGELEN
  • Publication number: 20100158662
    Abstract: The invention relates to a system for controlling at least two variable-geometry equipments of a gas turbine engine. The engine comprises at least a first core rotating at a first speed and a second core rotating at a second speed, the first equipment (10b) comprising at least one variable-pitch stator blade (14) of a compressor of the first core, the second equipment (110) comprising at least one air bleed valve of a compressor of the second engine core moving between an open position at idle speed and a closed position at high speed; it comprises an actuator (24) which actuates both equipments. Thanks to the invention, the control system makes it possible to reduce the number of parts of the gas turbine engine while retaining said equipments on distinct cores, thereby allowing them to fulfill their function.
    Type: Application
    Filed: September 24, 2009
    Publication date: June 24, 2010
    Applicant: SNECMA
    Inventors: Baptiste Benoit COLOTTE, Bruno Robert Gaully
  • Publication number: 20100158663
    Abstract: The invention relates to a system for controlling at least two variable-geometry equipments of a gas turbine engine. The engine comprises at least a first core rotating at a first speed and a second core rotating at a second speed, the first equipment (10b) comprising at least one variable-pitch stator blade (14) of a compressor of the first core, the second equipment (110) comprising at least one air bleed valve of a compressor of the second engine core moving between an open position at idle speed and a closed position at high speed; it comprises an actuator (24) which actuates both equipments. Thanks to the invention, the control system makes it possible to reduce the number of parts of the gas turbine engine while retaining said equipments on distinct cores, thereby allowing them to fulfill their function.
    Type: Application
    Filed: September 24, 2009
    Publication date: June 24, 2010
    Applicant: SNECMA
    Inventors: Baptiste Benoit COLOTTE, Bruno Robert Gaully
  • Publication number: 20080101917
    Abstract: A device (40) for limiting overspeed in a turbomachine in the event of breakage of the turbine shaft (24), comprising means (38, 44) of propelling a pin (42) into the path of the blades (22), these propelling means being controlled by means (36) that detect overspeed or that the turbine shaft has broken.
    Type: Application
    Filed: October 23, 2007
    Publication date: May 1, 2008
    Applicant: SNECMA
    Inventors: Jacques Rene BART, Didier Rene Andre Escure, Stephane Rousselin
  • Patent number: 6755609
    Abstract: A radial-flow pump (1), and especially a coolant pump for an internal combustion engine, comprising an impeller (2) provided with vanes (5) and a directing device (4) including at least one temperature- and/or speed-sensitive element for temperature-dependent control of the coolant flow, where at least one impeller vane (5) and/or the directing device (4) is configured as a speed-sensitive element. In order to increase efficiency, the proposal is put forward that the impeller vanes (5) should be elastically deformable by Coriolis forces of the coolant flow, the discharge angles (&agr;), which are preferably defined between impeller vanes (5) and impeller tangential planes (&egr;), decreasing with an increase in speed.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: June 29, 2004
    Assignee: TCG Unitech Aktiengesellschaft
    Inventors: Markus Preinfalk, Heinz Klaus, Fritz Atschreiter
  • Patent number: 6533536
    Abstract: A turbine installation comprising a turbine in combination with an electrical closed-loop control system. The turbine is disposed in a flow of water for producing electrical energy. The turbine includes a hollow hub and a plurality of runner blades pivotally connected to a hollow hub. Each blade comprises a hydrofoil being bounded by an inner surface and a distal outer surface, a leading edge and a trailing edge separated by a water directing surface. The blades are adjustable in pitch from a maximum pitch position in which an inner portion of the water directing surface extends substantially in a direction of the water flow, to a minimum pitch position in which an outer portion of the water directing surface is substantially perpendicular to the water flow. The hollow hub has spaced apart inner and outer surfaces and a hub longitudinal axis. Each blade is pivotally connected to the hub about a rotational axis.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: March 18, 2003
    Assignee: Voith Hydro, Inc.
    Inventors: Richard K. Fisher, Jr., Robert G. Grubb, Joseph M. Cybularz, Richard K. Donelson, Mark E. Kennell, Wolfgang Heine
  • Publication number: 20020150463
    Abstract: Blower designs for vented enclosures include an impeller having a plurality of blades. The impeller includes a plurality of blades pivotably coupled to an impeller body. The blades pivot to enable operation in one of a closed and an open state. Air flow between blades is substantially restricted when the blades are in the closed state. Air flow between the blades is permitted when the blades are in an open state. In one embodiment, the pivotable couplings are spring loaded to maintain the blades in the closed state when the impeller rotational speed is below a threshold range. The blades pivot to the open state when the rotational speed exceeds the threshold range.
    Type: Application
    Filed: April 13, 2001
    Publication date: October 17, 2002
    Inventors: James J. deBlanc, David M. Dickey, Victoria Tsang Tam
  • Patent number: 6402477
    Abstract: A turbine, adaptable to improve the survivability of fish present in water flowing therethrough, includes a hub and associated runner blades. Each blade comprises an inner edge and a distal outer edge, a leading edge and a trailing edge separated by a water directing surface. Each blade is rotatable relative to the hub about a blade rotational axis. The turbine is provided with a gap shielding device designed to shield a gap formed between the hub and the blade inner edge as the blade is rotated about its axis. The gap shielding device may comprise a plurality of independently biased pins, a plurality of fluid jets, a plurality of flexible members, a fluid-filled boot, and combinations thereof.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: June 11, 2002
    Assignee: Voith Siemens Hydro Power Generation, Inc.
    Inventors: Joseph M. Cybularz, Richard K. Donelson, Richard K. Fisher, Jr., Robert G. Grubb, Randy V. Seifarth, Siegbert Etter, Donald E. Zehner
  • Patent number: 6155038
    Abstract: A method and an apparatus for use with a gas turbine engine receive a signal indicative of an engine operating condition, generate signals representative of thermal conditions of a rotor, blades, and a case, and in response to each of the signals above, determine a signal indicative of a difference between a instantaneous clearance for the thermal conditions and a steady state clearance for the engine operating condition. The determination includes effects related to a temporary difference that results from a difference between the steady state clearance for the engine operating condition and a steady state clearance for a preceding engine operating condition, but does not require computation of the actual temperatures or the steady state temperatures of the rotor, the blades, and the case. A signal indicative of the difference between a instantaneous clearance for the thermal conditions and a steady state clearance for the engine operating condition may be provided to various augmentation schedules.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: December 5, 2000
    Assignee: United Technologies Corporation
    Inventors: Craig W. Irwin, Syed J. Khalid
  • Patent number: 5954474
    Abstract: A turbine, disposed in water flowing therethrough, includes a hub and associated runner blades. Each blade comprises an inner surface and a distal outer surface, a leading edge and a trailing edge separated by a water directing surface. Each blade is rotatable relative to the hub about a blade rotational axis. The hub includes a spherically-shaped outer surface in a region of the hub swept by the inner surface of the blades when the blades are rotated from maximum to minimum pitch. The hub may also be associated with blades in which the chord is reduced in the root region of the blade. The turbine may also include seals attached to the blade inner surface and an essentially spherically-shaped discharge ring to improve certain turbine parameters such as cavitation, efficiency, flow disturbance, and fish survivability.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: September 21, 1999
    Assignee: Voith Hydro, Inc.
    Inventors: Richard K. Fisher, Jr., Robert G. Grubb, Joseph M. Cybularz, Richard K. Donelson, Mark E. Kennell, Wolfgang Heine
  • Patent number: 5947679
    Abstract: A turbine, adaptable to improve the survivability of fish present in water flowing therethrough, includes a hub and associated runner blades. Each blade comprises an inner edge and a distal outer edge, a leading edge and a trailing edge separated by a water directing surface. Each blade is rotatable relative to the hub about a blade rotational axis. The turbine is provided with features designed to shield a gap formed between the hub and the blade inner edge as the blade is rotated about its axis.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: September 7, 1999
    Assignee: Voith Hydro, Inc.
    Inventors: Joseph M. Cybularz, Richard K. Donelson, Richard K. Fisher, Jr., Robert G. Grubb, Randy V. Seifarth, Siegbert Etter, Donald E. Zehner
  • Patent number: 5754446
    Abstract: A method and system for optimizing performance of a Kaplan turbine power generating unit are provided wherein an optimal "N-dimensional" virtual cam is populated with gate and blade positional settings producing maximum power output for a set of N operating parameters. The preferred parameters include head, flow, power generation level, physical situation of the unit, operating state of neighboring units, trash rack loss and a parameter indicative of cavitation (such as relative submersion level). When the system detects a unique set of operating conditions for which optimization is needed, an iterative optimization search is performed for the best gate and blade positional settings, which are then saved in memory (populating the cam matrix) for subsequent use when the same operating conditions are encountered. The optimal matrix divides parameters having ranges into range segments and treats other parameters as having discrete states.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: May 19, 1998
    Assignee: Voith Hydro, Inc.
    Inventors: Richard K. Fisher, Jr., Richard A. Johnson, Ronald E. Deitz
  • Patent number: 5561830
    Abstract: According to the invention there now is provided a method of producing a sintered titanium based carbonitride alloy with 325 weight-% binder phase with extremely good properties at extremely fine machining with high cutting speeds and low feeds. The method relates to the use of a raw material comprising a complex cubic carbonitride containing the main part of the metals from groups IV and V of the periodic system and carbon and nitrogen to be found in the finished alloy whereby said alloy has the composition0.87.ltoreq.X.sub.IV .ltoreq.0.990.66.ltoreq.X.sub.C .ltoreq.0.76where X.sub.IV is the molar ratio of the group IV elements of the alloy and X.sub.C is the molar ratio of carbon.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: October 1, 1996
    Assignee: Sandvik AB
    Inventors: Gerold Weinl, Rolf Oskarsson
  • Patent number: 5209632
    Abstract: A hydroelectric power generator equipment includes a hydraulic turbine which has a runner with blades adjustable of opening thereof and a hollow turbine shaft mounting thereon the runner, a power generator having a hollow shaft connected to the turbine shaft, a hydraulic cylinder mounted on the runner to drive the blades, and first and second liquid passages each passing through the turbine and generator shafts and feeding oil to the hydraulic cylinder to adjust the opening of the runner blades. One of members defining the first and second liquid passages is screwed in the inner wall of the shafts around an axially middle portion of the first and second liquid passages to suppress radial movement of the passage defining member. Some of the members are slidably or firmly inserted in other members so that disassembly is easy.
    Type: Grant
    Filed: September 25, 1991
    Date of Patent: May 11, 1993
    Assignee: Hitachi, Ltd.
    Inventor: Takashi Ito
  • Patent number: 5165845
    Abstract: Stall margin in a gas turbine compressor is controlled during acceleration by synthesizing the thermal enlargement of critical compressor stages to synthesize the temporary increase in blade-case clearance during acceleration. The change in clearance is used to produce an augmenting stator vane deflection signal which is summed with a steady state vane deflection signal to increase deflection during acceleration until the clearance returns to a nominal level when the expansion of the compressor parts stabilize.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: November 24, 1992
    Assignee: United Technologies Corporation
    Inventor: Syed J. Khalid
  • Patent number: 5165844
    Abstract: The deflection angle of a gas turbine stator is adjusted in proportion to the difference between two parameters computed from N.sub.2 and TT2 using the same function generator. One parameter is a reference adjustment under standard conditions for measured N.sub.2 adjusted to sea level and standard temperature. The second parameter is an adjustment for actual altitude conditions. The parameters manifest the clearance between the engine case and the turbine blade tips.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: November 24, 1992
    Assignee: United Technologies Corporation
    Inventor: Syed J. Khalid
  • Patent number: 4743160
    Abstract: A process and apparatus for preventing the overspeed of a low head hydroelectric generating set including a turbine having an adjustable distributor valve assembly and adjustable vanes wherein the openings of the valve assembly and vanes are continuously monitored relative to one another and with the openings of the valve being limited by a conjugation device so as to insure that the pressure head through the turbine is retained at or just slightly below the normal lowest operating pressure head for which the turbine is designed to operate.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: May 10, 1988
    Inventors: Lucien Megnint, Paul Jarriand
  • Patent number: 4700541
    Abstract: An electrically controlled shape memory alloy actuator capable of being miniaturized for use in robotics and other fields. The actuator is made of a shape memory alloy wire which is torsioned end along its longitudinal axis and with its ends constrained against movement. A lever or other suitable element is attached to the wire at a desired point other than at a wire end. A plurality of electrical connections spaced along the wire define a plurality of different sections of the wire. The wire and attached control element is made to rotate by selectively applying voltages to the different sections of the wire to heat the individual sections.
    Type: Grant
    Filed: October 16, 1986
    Date of Patent: October 20, 1987
    Assignee: American Telephone and Telegraph Company, AT&T Bell Laboratories
    Inventors: Kaigham J. Gabriel, William S. N. Trimmer, James A. Walker
  • Patent number: 4523434
    Abstract: An air ventilator for ventilating indoor air to the environment comprising a motor provided with a shaft, a rotor mounted on said shaft, a plurality of fan blades pivotally attached to the rotor, a rotating circular plate having a plurality of sliding slots and a plurality of connecting holes mounted on said shaft of the motor, a fixed circular plate connected to the rotating circular plate with pins and mounted on the shaft of said motor, centrifugal weight members disposed between the fixed circular plate and the rotating circular plate, and a torsion coil spring connecting the centrifugal weight member with the rotating circular plate for elastically supporting the weight member, whereby when the motor is operating, the centrifugal weight members engage the rotating circular plate, apply a circumferential directional force thereto, and angularly displace the circular plate, said displacement being transmitted to the fan blades for ventilating the inside air to the environment; and when the motor is not ope
    Type: Grant
    Filed: September 5, 1984
    Date of Patent: June 18, 1985
    Inventor: Byung E. Yoo
  • Patent number: 4485888
    Abstract: Transversely mounted engine cooling fan in parallel with vehicle engine mechanically driven by straight drive and having blades whose pitch is varied in accordance with engine speed and load for optimized cooling performance. The fan has small radial dimension and extended width to match low and wide engine cooling radiator so that the front hood can be aerodynamically streamlined.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: December 4, 1984
    Assignee: General Motors Corporation
    Inventor: Mason K. Yu
  • Patent number: 4405283
    Abstract: A flow machine particularly a superheated gas turbine comprises a housing with a rotor disposed in the housing for rotation therein and sealed at each end with the housing by a labyrinth seal. The construction includes rotor shaft bearings which rotatably support the shafts and which are supported by bearing blocks disposed on the foundation. The housing and the shaft are mounted relative to each other by means of fluid pressure operated cushions adjacent each end of the shaft and adjacent the labyrinth seal so as to maintain the shafts and the seals with a predetermined clearance.
    Type: Grant
    Filed: June 17, 1981
    Date of Patent: September 20, 1983
    Assignee: M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft
    Inventor: Edmund Owsianny
  • Patent number: 4279568
    Abstract: A linkage system for the variable stator vanes of a gas turbine engine is augmented by control means operable as a function of compressor speed designed to match the aerodynamic requirements of the airflow through the compressor so as to define the rate of schedule change of the vanes over its angular movement by compensating for the inadequacies inherent in the capabilities of the linkage system.
    Type: Grant
    Filed: October 16, 1978
    Date of Patent: July 21, 1981
    Assignee: United Technologies Corporation
    Inventor: Alan D. Munroe