Plural Diverse Condition Responsive (e.g., Temperature And Pressure, Speed And Level, Etc.) Patents (Class 415/17)
  • Patent number: 10571177
    Abstract: Systems and methods for compressor unloading detection are provided and include a compressor having a compression mechanism. A controller determines a predicted discharge temperature of the compressor, receives an actual discharge temperature of the compressor, and compares the predicted discharge temperature with the actual discharge temperature. The controller also compares a speed of the compressor with a speed threshold and detects unloading of the compression mechanism based on the comparison of the predicted discharge temperature with the actual discharge temperature and based on the comparison of the speed of the compressor with the speed threshold. The controller performs at least one of generating an alert and a remediating action in response to detecting the unloading of the compression mechanism.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: February 25, 2020
    Assignee: Emerson Climate Technologies, Inc.
    Inventor: Jacob A. Groshek
  • Patent number: 10563673
    Abstract: A centrifugal compressor for a chiller includes a casing, an inlet guide vane, an impeller downstream of the inlet guide vane, a motor and a diffuser. The casing has inlet and outlet portions with the inlet guide vane disposed in the inlet portion. The impeller is rotatable about a rotation axis defining an axial direction. A liquid injection passage is provided to inject liquid refrigerant into an area between the impeller and the diffuser. The motor rotates the impeller. The diffuser is disposed in the outlet portion downstream from the impeller with an outlet port of the liquid injection passage being disposed between the impeller and the diffuser. A controller is programmed to control an amount of the liquid refrigerant injected into the area between the impeller and the diffuser.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: February 18, 2020
    Assignee: DAIKIN APPLIED AMERICAS INC.
    Inventors: Nobuhiro Umeda, Md Anwar Hossain, Takatoshi Takigawa
  • Patent number: 10371064
    Abstract: A method of operating a gas turbine engine includes measuring an exhaust gas temperature of the gas turbine engine. A first stage turbine nozzle assembly of the gas turbine engine is adjusted to a first position. A firing temperature of the gas turbine engine is determined based on the exhaust gas temperature. The firing temperature is compared to a threshold value and a difference value is determined therefrom. If the difference value exceeds a threshold value, the first stage turbine nozzle assembly is adjusted to a second position such that the firing temperature is substantially equal to the threshold value.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: August 6, 2019
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Narendra Digamber Joshi, Krishan Lal Luthra
  • Patent number: 10352249
    Abstract: The occurrence of corrosion on the inner surfaces of pipes is to be minimized in a cooling air system of a gas turbine. Specifically, this gas turbine power generation equipment has: a gas turbine including a turbine connected to a generator, a combustor that supplies combustion gas to the turbine, and a compressor that supplies compressed air to the combustor; a cooling air system that supplies compressed air bled from the compressor to the turbine, the cooling air system being connected at a first end side to an intermediate stage or an outlet of the compressor and connected at a second end side to the turbine; and a drying air system that supplies drying air into the cooling air system when the gas turbine is stopped, the drying air system being connected to the cooling air system.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: July 16, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Shinichi Yamazaki, Jiro Asakuno
  • Patent number: 10260377
    Abstract: In some aspects, a steam turbine system includes a high-pressure turbine section; a low-pressure turbine section; a high-pressure control valve operable to provide an adjustable flow of steam into the high-pressure turbine section; a low-pressure control valve operable to provide an adjustable flow of steam into the low-pressure turbine section; a controller associated with the high-pressure control valve and the low-pressure control valve. The controller is operable to: receive measurements of three or more different operating points of the steam turbine system, the measurements of each of the three or more different operating points including a position of the high-pressure control valve, a position of the low-pressure control valve, and two of process variables of the steam turbine system; calculate coefficients of a steam performance map of the steam turbine system based on the measurements; and generate the steam performance map based on the coefficients.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: April 16, 2019
    Assignee: Woodward, Inc.
    Inventors: Tena K. Britt, Scott David Oceanak, Dave Rubenthaler, Aaron Russo
  • Patent number: 10197472
    Abstract: A method for performing maintenance on an engine includes: providing an engine maintenance system including a database system having a database and a database management device: providing a first performance parameter stored in the database and characterizes an engine performance before an engine maintenance procedure; providing a maintenance parameter stored in the database and characterizes a scope of a maintenance measure performed on an engine during an engine maintenance procedure; providing a second performance parameter stored in the database and characterizes the engine performance after the engine maintenance procedure; determining, using the database management device, a functional relationship between the maintenance parameter and the contribution of the maintenance parameter to a difference between the first performance parameter and the second performance parameter; outputting the functional relationship via the engine maintenance system; and performing maintenance on the engine taking the functi
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: February 5, 2019
    Assignee: MTU Aero Engines AG
    Inventors: Jonathan Kuschke, Anastasios Tsalavoutas, Andre Kando
  • Patent number: 10107296
    Abstract: Systems and methods are provided for a turbocharger compressor, where the system may comprise: an actuatable annular disk comprising choke slots therein; an outer annular disk comprising choke slots therein; and an actuator to rotate the actuatable annular disk relative to the outer annular disk to vary alignment of the choke slots of the actuatable annular disk and the outer annular disk. The actuator may be controlled by an engine controller responsive to operating conditions of the compressor and actuated to align choke slots. Alignment of the choke slots allows air to be drawn into the impeller effectively expanding the compressor flow capacity to prevent compressor choke.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: October 23, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Harold Huimin Sun, Dave R. Hanna, Thomas Polley, Liangjun Hu, Daniel William Kantrow
  • Patent number: 9995098
    Abstract: A computerized control is used in controlling a choke when drilling a wellbore with a drilling system. The computerized control obtains a measured value of a parameter in the drilling system and controls the parameter in the drilling system using the choke. The computerized control obtains indications of an error between a set point of the parameter and the measured value of the parameter in the drilling system, a flow coefficient character of the choke, and a current position of the choke. Based on these indications, the computerized control then determines a position adjustment for the choke and adjusting the parameter in the drilling system by applying the position adjustment to the choke.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: June 12, 2018
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Jose D. Brana, Jeffrey W. Niazy
  • Patent number: 9783720
    Abstract: Disclosed herein is a method for producing cooling comprising evaporating a liquid refrigerant comprising (a) E-CF3CH?CHF and (b) at least one tetrafluoroethane of the formula C2H2F4; provided that the weight ratio of E-CF3CH?CHF to the total amount of E-CF3CH?CHF and C2H2F4 is from about 0.05 to 0.99, in an evaporator, thereby producing a refrigerant vapor. Also disclosed herein is a method for replacing HCFC-124 or HFC-134a refrigerant in a chiller designed for said refrigerant comprising providing a replacement refrigerant composition comprising (a) E-CF3CH?CHF and (b) at least one tetrafluoroethane of the formula C2H2F4; provided that the weight ratio of E-CF3CH?CHF to the total amount of E-CF3CH?CHF and C2H2F4 is from about 0.05 to 0.99.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: October 10, 2017
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventor: Konstantinos Kontomaris
  • Patent number: 9765712
    Abstract: An internal combustion engine having intake and exhaust manifolds, a turbocharger with a compressor, and at least one of: an exhaust gas recirculation (EGR) valve and a variable geometry turbine (VGT). The system further includes a control computer configured to determine at least one of torque demand, pressure across the compressor, and pressure gradient ratio between the exhaust manifold and the intake manifold relative to one of exhaust manifold pressure, intake manifold pressure, and 1. The control computer performs at least one of: closing the EGR valve in response to the determined at least one of torque demand, pressure across the compressor, and pressure gradient ratio, and lessening restriction provided by the variable geometry turbine responsive to the determined at least one of torque demand, pressure across the compressor, and pressure gradient between the exhaust manifold and the intake manifold.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: September 19, 2017
    Assignee: CUMMINS INC.
    Inventors: Emrah Arslanturk, Orcun Kurugol, Ohiorenuan J. Amu
  • Patent number: 9752504
    Abstract: A method is provided for operating a gas turbine plant including a compressor, which on an inlet side inducts intake air and compresses it, providing compressor exit air on a discharge side. The plant also includes a combustion chamber where fuel is combusted, using compressor exit air, forming a hot gas; and a turbine, where the hot gas is expanded, performing work. The method includes extracting compressed air from the compressor, directing it as cooling air flow into the combustion chamber and/or into the turbine for cooling thermally loaded components. The method also includes controlling at least one cooling air flow, for achieving specific operating targets, using a control element depending on an operating target. A gas turbine plant is also provided having at least one control element for cooling air flow control, and a gas turbine controller which controls the gas turbine plant based on selectable control parameter sets.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: September 5, 2017
    Assignee: ANSALDO ENERGIA IP UK LIMITED
    Inventors: Manuel Arias Chao, Bernhard Wippel, Christian Balmer, Ralf Jakoby
  • Patent number: 9666051
    Abstract: A method of detecting that an aircraft is flying in icing conditions. A processor unit determines a real power developed by the turboshaft engine and a theoretical power that the engine can develop in theory, the theoretical power being determined using a theoretical model supplying a power as a function at least of a speed of rotation of a gas generator of the engine. The processor unit determines a difference between the real power and the theoretical power. The processor unit generates a warning to indicate the presence of icing conditions when the power difference is greater than a predetermined power threshold for a length of time longer than a time threshold, and when a temperature outside the aircraft lies between a low temperature threshold and a high temperature threshold.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: May 30, 2017
    Assignee: Airbus Helicopters
    Inventors: Regis Rossotto, Emmanuel Camhi
  • Patent number: 9574572
    Abstract: A compressor control method includes providing variable aerodynamic sizing of fluid flow through a compressor at multiple operating points of the compressor. A head is determined for an operating point, based on a process input at that operating point. Further, for that operating point, a control pressure number is determined as a function aerodynamic flow sizing at that operating point. The control pressure number is determined a function of the head divided by the square of a tip speed of the impeller of the compressor. An operating speed setpoint is determined based on the determined head and control pressure number.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: February 21, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Soeren Boegh Andersen, Frans Ploeger, Richard H. Vinton
  • Patent number: 9249781
    Abstract: A wind turbine condition monitoring system and method are disclosed where the wind turbines include a tower, a gearbox coupled to the tower, and turbine blades coupled to the gearbox. The monitoring system includes blade sensors coupled to the blades, a hub node coupled to the gearbox and a controller. The controller is in communication with the hub node and blade sensors, and determines blade positions based on blade sensor readings. The blade sensors and hub node can include multi-axis accelerometers. The controller can wirelessly communicate with the blade sensors directly or through the hub node. Using position information, shadowing areas with obstructed communication can be avoided, node separation can be accounted for to reduce power requirements and/or interference from multiple transmitters can be avoided during node communications.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: February 2, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Christoph Lang, Peter Volkmer, Murat Senel, Vivek Jain, Lakshmi Venkatraman, Huang Lee
  • Patent number: 9249794
    Abstract: Embodiments of the invention provide a condition-based maintenance tool that may be used to monitor, configure, and in some cases correct, problems experienced by a compressor in a pipeline system. The condition-based maintenance tool may evaluate data retrieved from a compressor status database to identify overconsumption events. In response, the maintenance tool may generate maintenance alarms, initiate work orders, and/or provide recommendations for action to an operator.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: February 2, 2016
    Assignee: American Air Liquide, Inc.
    Inventors: Olivier Cadet, Franck-Stephane Durtschi, Omar Germouni
  • Patent number: 9243805
    Abstract: A device comprising a combustion toroid for receiving combustion-induced centrifugal forces therein to continuously combust fluids located therein and an outlet for exhaust from said combustion toroid.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: January 26, 2016
    Assignee: POWER GENERATION TECHNOLOGIES DEVELOPMENT FUND, L.P.
    Inventor: Ernst Bergen
  • Patent number: 9217330
    Abstract: A product for balancing a shaft and wheel assembly of a turbocharger is disclosed. A fixture may have an exterior surface, with an aperture extending through the exterior surface. A first conduit may extend through the fixture and may exit from the first conduit through the exterior surface. A second conduit may extend through the fixture and may exit into the aperture. A pressurized gas source may be connected to the first and second conduits. An electromagnet may be positioned in the fixture and may extend around the aperture. The pressurized gas source may be operated to apply pressurized gas through the first and second conduits and the electromagnet may be operated to apply a magnetic field to the aperture.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: December 22, 2015
    Assignee: BorgWarner Inc.
    Inventor: Robert S. LeRosen
  • Patent number: 9194758
    Abstract: Systems and methods of estimating an efficiency of a section of a steam turbine are disclosed. The systems and methods include determining a set of measurement data obtained directly from a set of sensors on the steam turbine, determining a set of derived data relating to measurements that cannot be obtained directly from the set of sensors, and estimating the efficiency of the section using the set of measurement data and the set of derived data. The systems and methods disclosed use physics-based models combined with nonlinear filtering techniques to estimate steam turbines' efficiencies when physical sensors are not available. These models capture the behavior of different components of the power plant, including all steam turbine sections, admission and crossover pipes, flow junctions, admission and control valves.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: November 24, 2015
    Assignee: General Electric Company
    Inventors: Maria Cecilia Mazzaro, Fernando Javier D'Amato, Jitendra Kumar, Vivek Venugopal Badami, Mahalakshmi Shunmugham Balasubramaniam, Roopesh Bhaskaran Nagathil
  • Patent number: 9158307
    Abstract: A system includes a controller including a processor configured to execute a program stored in a memory of the controller to generate and transmit a first output comprising a total flow demand value to a plurality of valves communicatively coupled to the controller. Each of the plurality of valves is configured to receive a respective portion of the total flow demand value. The processor is configured to receive an input indicative of a decoupling of a first valve of the plurality of valves and to generate a second output based at least in part on the first output and a first operational characteristic of the first valve. The second output is configured to vary a second operational characteristic of a second valve of the plurality of valves to maintain the total flow demand value.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: October 13, 2015
    Assignee: General Electric Company
    Inventor: Joseph Clay Saltsman
  • Patent number: 9127574
    Abstract: The method for operating a power plant including a gas turbine and a steam power generation system that activate, or drive, at least one electric generator, wherein the gas turbine produces flue gases that are supplied into a boiler of the steam power generation system. In a steady operation, the gas turbine generates a first output power greater than zero, the steam turbine generates a second output power greater than zero, and a total generated power is a sum of the first and second output powers and is substantially equal to a house load of the power plant.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: September 8, 2015
    Assignee: ALSTOM TECHNOLOGY LTD.
    Inventors: Hamid Olia, Jan Schlesier
  • Patent number: 9121408
    Abstract: A compressor has a hub-side wall of a hub-side wall plate, a shroud-side wall that faces the hub-side wall and forms a diffuser path between the shroud-side wall and the hub-side wall, vanes that protrude from the hub-side wall plate into the diffuser path, and an actuator capable of changing the distance between the vanes and the shroud-side wall in accordance with a flow rate of air in the diffuser path. Adjacent ones of the adjacent vanes do not overlap with each other when viewed from a center axis of the compressor. When the actuator maximizes the distance between the vanes and the shroud-side wall, the distance between the vanes and the shroud-side wall is smaller than the distance between the hub-side wall and areas of the shroud-side wall that face the vanes.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: September 1, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Jumpei Shioda, Masakazu Tabata
  • Patent number: 9109608
    Abstract: A compressor airfoil tip clearance optimization system for reducing a gap between a tip of a compressor airfoil and a radially adjacent component of a turbine engine is disclosed. The turbine engine may include ID and OD flowpath boundaries configured to minimize compressor airfoil tip clearances during turbine engine operation in cooperation with one or more clearance reduction systems that are configured to move the rotor assembly axially to reduce tip clearance. The configurations of the ID and OD flowpath boundaries enhance the effectiveness of the axial movement of the rotor assembly, which includes movement of the ID flowpath boundary. During operation of the turbine engine, the rotor assembly may be moved axially to increase the efficiency of the turbine engine.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: August 18, 2015
    Assignee: Siemens Energy, Inc.
    Inventors: David A. Little, Zhengxiang Pu
  • Patent number: 9097133
    Abstract: A compressor tip clearance management system includes a compressor section having a low pressure compressor and a high pressure compressor arranged downstream from the low pressure compressor. A variable stator vane is arranged upstream from the high pressure compressor. The variable stator vane is connected to an actuator, and a controller is in communication with the actuator. The controller is configured to provide a command to the actuator to move the variable stator vane in response to a high pressure compressor clearance condition. A high pressure compressor rotor speed is altered, and the high pressure compressor clearance condition is changed to a desired clearance.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: August 4, 2015
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Yuan Dong, Lisa I. Brilliant, Daniel Carminati, Steven J. Sirica
  • Patent number: 9086019
    Abstract: An example method of thermal energy exchange within a turbomachine includes heating a liquid using thermal energy from compressed air, injecting the liquid into a first portion of a turbomachine, and using the compressed air to cool a second portion of the turbomachine.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: July 21, 2015
    Assignee: United Technologies Corporation
    Inventor: Michael Winter
  • Patent number: 9085994
    Abstract: This gas turbine includes a turbine cooling structure of cooling a turbine by using cooling air and a filter that reduces dust in the cooling air on an upstream side of the turbine. Furthermore, the gas turbine includes a supply pipe for supplying the cooling air to the filter, a branch pipe that is branched from the supply pipe on an upstream of the filter, and a unit that calculates or estimates a circulation amount of dust in the cooling air. In this gas turbine, at a time of start-up of a turbine, the supply pipe is closed and the branch pipe is opened, and when the circulation amount of dust in the cooling air becomes equal to or less than a predetermined threshold, the supply pipe is opened and the branch pipe is closed.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: July 21, 2015
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Katsuhisa Kojima, Yasutoshi Ueda, Takashi Sonoda, Masao Terazaki
  • Patent number: 9046097
    Abstract: A system for testing a compressor is provided. The system comprises one or more compressors connected together in series to a test compressor wherein an output of the test compressor is connected to an input of a first compressor in the series, forming an overall loop, one or more process fluid coolers in the overall loop, one or more orifices in the overall loop, a control valve in the overall loop, and a first plurality of sensors configured adjacent to a process fluid input of the test compressor and a second plurality of sensors configured adjacent to a process fluid output of the test compressor.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: June 2, 2015
    Assignee: Nuovo Pignone S.P.A
    Inventors: Alberto Scotti Del Greco, Libero Tapinassi, Stefano Vanghi, Filippo Gerbi, Chiara Cinelli
  • Publication number: 20150135696
    Abstract: An axial-flow turbine assembly that includes one or more features for enhancing the efficiency of the turbine's operation. In one embodiment, the turbine assembly includes a turbine rotor having blades that adjust their pitch angle in direct response to working fluid pressure on the blades themselves or other part(s) of the rotor. In other embodiments, the turbine assembly is deployable in an application, such as an oscillating water column system, in which the flow of working fluid varies over time, for example, as pressure driving the flow changes. In a first of these embodiments, the turbine assembly includes a valve that allows the pressure to build so that the flow is optimized for the turbine's operating parameters. In a second of these embodiments, one or more variable-admission nozzle and shutter assemblies are provided to control the flow through the turbine to optimize the flow relative to the turbine's operating parameters.
    Type: Application
    Filed: January 30, 2015
    Publication date: May 21, 2015
    Inventors: Frederick E. Becker, Francis A. DiBella, Kevin D. Fairman, Alexander Gofer
  • Publication number: 20150139776
    Abstract: Provided is a compressor control device configured to control a flow rate of a compressor having a plurality of impellers connected to an outlet port-side flow path in parallel and a flow rate regulation unit configured to regulate a flow rate of each of the impellers, the compressor control device including a pressure detection unit configured to detect a pressure of the outlet port-side flow path, a flow rate detection unit configured to detect the flow rate of each of the impellers, and a control unit configured to output a flow rate regulation command of each of the impellers to the flow rate regulation unit and control the flow rate regulation unit based on the detection result of the pressure detection unit.
    Type: Application
    Filed: September 12, 2013
    Publication date: May 21, 2015
    Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Kazuhiro Takeda, Yosuke Nakagawa
  • Publication number: 20150107252
    Abstract: A Rankine cycle apparatus (1A) of the present disclosure includes a main circuit (10), a heat exchange portion (HX), a bypass flow path (20), a flow rate-adjusting mechanism (3), and a pair of temperature sensors (7A). The main circuit (10) is formed by an expander (11), a condenser (13), a pump (14), and an evaporator (15) that are circularly connected in this order. The heat exchange portion (HX) is located in the main circuit (10) at a position between an outlet of the expander (11) and an inlet of the pump (14). The bypass flow path (20) branches from the main circuit (10) at a position between an outlet of the evaporator (15) and an inlet of the expander (11), and joins to the main circuit (10) at a position between the outlet of the expander (11) and an inlet of the heat exchange portion (HX). The flow rate-adjusting mechanism (3) adjusts the flow rate of the working fluid in the bypass flow path (20).
    Type: Application
    Filed: January 8, 2014
    Publication date: April 23, 2015
    Inventors: Atsuo Okaichi, Osao Kido, Takumi Hikichi, Osamu Kosuda, Masaya Honma, Masanobu Wada
  • Patent number: 8998563
    Abstract: An active clearance control system for a gas turbine engine includes a structural member that is configured to be arranged near a blade tip. A plenum includes first and second walls respectively providing first and second cavities. The first wall includes impingement holes. The plenum is arranged over the structural member. A fluid source is fluidly connected to the second cavity to provide an impingement cooling flow from the second cavity through the impingement holes to the first cavity onto the structural member. A method includes the steps of providing a conditioning fluid to an outer cavity of a plenum providing an impingement cooling flow through impingement holes from an inner wall of the plenum to an inner cavity, directing the impingement cooling flow onto a structural member, and conditioning a temperature of the structural member with the impingement cooling flow to control a blade tip clearance.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: April 7, 2015
    Assignee: United Technologies Corporation
    Inventor: Philip Robert Rioux
  • Publication number: 20150050121
    Abstract: A fan control system for processor is provided. The system has: a fan, configured to cool the processor; a power measurement module, coupled between the processor and a power supply of the processor, configured to measure the power of the processor; and a control module, coupled between the fan and the power measurement module, configured to control a speed of the fan according to the power of the processor, wherein when the power is higher than a predetermined power upper limit, the control module control the fan to increase the rotation speed.
    Type: Application
    Filed: January 9, 2014
    Publication date: February 19, 2015
    Applicant: Wistron Corp.
    Inventor: Te-Lung Wu
  • Patent number: 8944746
    Abstract: A turboexpander-compressor system includes an expander configured to expand an incoming gas, a first set of moveable inlet guide vanes configured to control a pressure of the incoming gas, a compressor configured to compress a gas received from the expander, a shaft configured to support and rotate an expander impeller and a compressor impeller, a second set of moveable inlet guide vanes attached to the compressor and configured to control a pressure of the gas input into the compressor, and a controller configured to acquire information about a rotating speed of the shaft, a pressure and a temperature of the incoming gas, a pressure and a temperature of the gas output from the expander, and to control the second set of moveable inlet guide vanes to maximize a ratio between the rotating speed of the shaft and a drop of an enthalpy across the expander, in off-design conditions.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: February 3, 2015
    Assignee: Nuovo Pignone S.p.A.
    Inventors: Gabriele Mariotti, Alberto Scotti Del Greco, Stefano Ghiraldo
  • Patent number: 8939704
    Abstract: A method for operating a multistage compressor is provided. The method includes monitoring the pump limit, wherein at least a first measurement parameter measured during operation is compared to a reference parameter. The reference parameter is characteristic of reaching the surge limit or a specific distance of the operating point from the surge limit. A multistage compressor is also provided. In order to enlarge the operating range without risking safety, it is proposed that each stage to be monitored individually for the onset of the surge.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: January 27, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventor: Georg Winkes
  • Publication number: 20150003956
    Abstract: An example variable vane scheduling method includes adjusting variable vanes from a position based on a first schedule to a position based on a different, second schedule in response to a control feature. An example method of controlling flow through a compressor of a turbomachine includes moving variable vanes to positions that allow more flow into the compressor in response to bleed air being communicated away from the compressor.
    Type: Application
    Filed: November 6, 2012
    Publication date: January 1, 2015
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: UNITED TECHNOLOGIES CORPORATION
  • Patent number: 8905705
    Abstract: An omni-directional air flow device, for example, a fan or a vent associated with a fan, comprises a swivel control point providing almost a spherical range of motion of the air flow device so that air may flow in any direction. The omni-directional air flow device may comprise a user input device for receiving a program for controlling movement of the air flow device through a pre-determined path within the spherical range of motion and for controlling air flow velocity as the air flow device follows the pre-determined path. Moreover, the device may further comprise a controller and memory for storing data representing the pre-determined path and varying air flow velocities along the path. When provided with temperature and humidity sensors coupled to the processor, the processor may calculate a comfort index and adjust the pre-determined path or air flow velocity accordingly.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: December 9, 2014
    Inventor: Norial P. Bain
  • Publication number: 20140271115
    Abstract: A turbine vane cooling system operably coupling a cooling fluid source to a turbine vane assembly is disclosed herein. A plurality of turbine vanes having an airfoil shaped surface forming a substantially hollow body is connected to the turbine vane assembly. An inlet can be operably connected to each turbine vane to form a fluid communication path between a cooling fluid source and an interior of the hollow body of each turbine vane. At least one outlet fluidly communicating with the interior of said hollow body can be formed in the vane. A regulating member can variably block a portion of an inlet of each of the turbine vanes in response to a temperature of each turbine vane.
    Type: Application
    Filed: December 4, 2013
    Publication date: September 18, 2014
    Inventors: Robert T. Duge, Andrew J. Eifert
  • Patent number: 8813498
    Abstract: A pressure sensor measures an organic Rankine cycle (ORC) working fluid pressure in front of a radial inflow turbine, while a temperature sensor measures an ORC working fluid temperature in front of the radial inflow turbine. A controller responsive to algorithmic software determines a superheated temperature of the working fluid in front of the radial inflow turbine based on the measured working fluid pressure and the measured working fluid temperature. The controller then manipulates the speed of a working fluid pump, the pitch of turbine variable inlet guide vanes when present, and combinations thereof, in response to the determined superheated temperature to maintain the superheated temperature of the ORC working fluid in front of the radial inflow turbine close to a predefined set point. The superheated temperature can thus be maintained in the absence of sensors other than pressure and temperature sensors.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: August 26, 2014
    Assignee: General Electric Company
    Inventors: Herbert Kopecek, Gabor Ast, Thomas Johannes Frey, Pierre Sebastien Huck
  • Patent number: 8789369
    Abstract: A turbocharger of a supercharging apparatus includes a turbine impeller, which is rotatable by exhaust gas discharged from an internal combustion engine of a vehicle. An electric heater is placed in an exhaust passage, which extends from an exhaust outlet of the internal combustion engine to the turbine impeller. The electric heater generates a heat when the electric heater is energized.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: July 29, 2014
    Assignee: Denso Corporation
    Inventor: Osamu Sato
  • Publication number: 20140193236
    Abstract: A power-producing device, such as a ram air turbine, includes a controller that is used to control operation of a turbine of the power-producing device. The controller uses an input based on an airspeed of the aircraft as part of a control mechanism in the controller for controlling the turbine. For example controller may be used to control backpressure of the turbine, for example by controlling the angle of doors of that are used to adjust backpressure of the turbine. The control mechanism may include a PID controller, with the gain of one or more of the values of the PID controller being a function of the airspeed of the aircraft. In addition the control mechanism may include manipulating a setpoint as a function of load on the power-producing device. The power-producing device may be part of a detachable pod that is installed on the aircraft.
    Type: Application
    Filed: January 4, 2013
    Publication date: July 10, 2014
    Applicant: RAYTHEON COMPANY
    Inventors: Brendan H. Robinson, John K. Yook, John H. Steele
  • Patent number: 8770914
    Abstract: A steam turbine system including a steam turbine is provided. The steam turbine system includes a high-pressure side steam inlet device, a low-pressure side steam device, and a control device for controlling the steam turbine. An additional steam inlet device is also included arranged between the high-pressure side steam inlet device and the low-pressure side steam device. The control device control a supply of steam via the additional steam inlet device as a function of operating parameters detected at the steam turbine system.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: July 8, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jörg Eppendorfer, Bernd Leidinger, Markus Mantei
  • Publication number: 20140186155
    Abstract: An apparatus for controlling the flow-rate of liquid of an electric pump and the temperature of the control and actuation electronics of a pumping device that carries the electric pump, the apparatus comprising, on a single monolithic segment of delivery duct, a flow-rate detector and a heat sink for a control and actuation unit, which is provided with temperature detection elements, the heat sink having a wet side that is exposed to the liquid and a dry side that is sealed from the liquid, with which the control and actuation unit is associated.
    Type: Application
    Filed: December 19, 2013
    Publication date: July 3, 2014
    Applicant: DAB PUMPS S.P.A.
    Inventors: Stefano TAZIOLI, Francesco SINICO
  • Publication number: 20140161588
    Abstract: A centrifugal compressor, the capacity of which can be increased with keeping the diameter of the impeller at minimum, is provided. The centrifugal compressor includes: a drive gear (11); a drive shaft (3) protruding from one side of the drive gear (11) in a central axis direction of the drive gear (11); a no. 1 driven pinion gear (12) configured for rotation of the drive gear (11) to be transmitted thereto; a no. 1 driven pinion shaft (5) protruding from both sides of the no. 1 driven pinion gear (12) in a central axis direction of the no. 1 driven pinion gear (12); and a couple of first stage compressor sections (7a, 7b), each of which is provided in each end of the no. 1 driven pinion shaft (5) and is configured to compress fluid by rotation of the no. 1 driven pinion shaft (5).
    Type: Application
    Filed: January 30, 2012
    Publication date: June 12, 2014
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Hiroyuki Miyata, Naoto Yonemura
  • Publication number: 20140154051
    Abstract: Method for individuating the pumping conditions of the centrifugal blowers according to thermo-dynamic conditions (pressure and temperature) and to the gas composition in inlet, comprising the steps of: acquisition of the suction pressure, the suction temperature, the delivery pressure, the delivery temperature, the flow rate, the revolution number and the chemical composition of the gas mixture; calculation of the reduced conditions of the processed gaseous mixture by means of mixing equations; solution of the state equation of the real gases for the calculation of the thermo not dynamic properties of the gas mixture in the current conditions; acquisition of the performance non-dimensional curves of the blower, which express the value of the working coefficient of the blower and of the plytropic yield of the blower; calculation of the blower performance curves on the basis of the non-dimensional curves and according to the blower inlet parameters; determination of the pumping points, individuated as maximum
    Type: Application
    Filed: June 25, 2012
    Publication date: June 5, 2014
    Applicant: INDUSTRIAL PLANTS CONSULTANTS SRL
    Inventors: Massimiliano Di Febo, Antonio Di Febo
  • Patent number: 8740548
    Abstract: A compressor variable stator vane arrangement comprises at least one stage of variable stator vanes. A speed sensor measures the rotational speed of the compressor rotor. A pressure sensor measures the outlet pressure of the compressor. A second pressure sensor, a temperature sensor and a third pressure sensor measure the total inlet pressure, the temperature and the ambient pressure at the inlet of the gas turbine engine. A processor determines a target operating line as a function of ambient pressure and total inlet pressure. The target operating line is defined to ensure the gas turbine engine operates simultaneously at both the minimum required compressor speed and the minimum required compressor outlet pressure when commanded to idle to minimize idle thrust and fuel burn. The processor determines if the operating point of the compressor, defined in terms of corrected outlet pressure and corrected rotational speed of the compressor rotor is above or below the target operating line of the compressor.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: June 3, 2014
    Assignee: Rolls-Royce PLC
    Inventors: Arthur L. Rowe, Marc Pons Perez, Cerith Davies
  • Patent number: 8740546
    Abstract: A guide vane of a condensation turbine steam turbine is provided, wherein the guide vane includes a heating resistor. The guide vane includes fiber composite material at least in some regions. The heating resistor may be embodied as a heating wire or as a heating film. A condensation steam turbine having a guide vane as described above is also provided.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: June 3, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Christoph Ebert, Albert Langkamp, Markus Mantei
  • Publication number: 20140133097
    Abstract: A cooling system includes: a cooling fan configured to take in air through an air filter and to send the air to one or more electronic components; one or more first temperature detectors configured to detect temperatures of the one or more electronic components; a revolution controller configured to control a number of revolutions of the cooling fan on basis of the temperatures detected by the one or more first temperature detectors; and a clogging detector configured to, when the number of revolutions of the cooling fan controlled by the revolution controller is greater than a reference number of revolutions of the cooling fan that makes the temperature of the one or more electronic components less than upper-limit temperatures of the one or more electronic components, detect a clogging condition for the air filter.
    Type: Application
    Filed: October 31, 2013
    Publication date: May 15, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Kouichi Kuramitsu, Kazuhiro IINO, Jyunichi ISHIWATARI, Hideki Kobayashi
  • Patent number: 8714906
    Abstract: A turbine engine includes a turbine, a compressor for compressing air and a combustor for receiving the compressed air through an inlet passage and operable to burn fuel therewith to deliver hot exhaust gas to the turbine. Also included is a wheel space defined proximate to the combustor. Further included is a cooling air passage extending between the compressor and the wheel space. Yet further included is a valve assembly having a valve member disposed in the cooling air passage and operable to admit a cooling air to the wheel space in response to a condition therein.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: May 6, 2014
    Assignee: General Electric Company
    Inventors: Rex Allen Morgan, Michael Alan Davi, Clement Gazzillo, Harold Lamar Jordan
  • Publication number: 20140093349
    Abstract: Certain embodiments of the disclosure may include systems, methods and apparatus for operating and validating a compressor. According to an example embodiment of the disclosure, a method is provided for validating compressor operation. The method can include receiving compressor operating parameter data from a plurality of sensors; and adjusting a portion of a variable flow area downstream of a compressor discharge to achieve a desired compressor pressure ratio.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicant: General Electric Company
    Inventors: Daniel Richard Waugh, Karl Dean Minto, Scott William Szepek, Louis Veltre
  • Publication number: 20140093350
    Abstract: A gas turbine engine comprises a compressor, a combustor, a turbine, and an electronic engine control system. The compressor, combustor, and turbine are arranged in flow series. The electronic engine control system is configured to generate a real-time estimate of compressor stall margin from an engine model, and command engine actuators to correct for the difference between the real time estimate of compressor stall margin and a required stall margin.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Richard P. Meisner, Brian V. Winebrenner, Matthew R. Feulner, Boris Karpman, Juan A. Marcos, David L. Ma
  • Patent number: 8684660
    Abstract: A pressure and temperature actuation system is provided having a high-temperature low-pressure zone, a low-temperature high-pressure zone, a boundary, a pressure actuated mechanism, and a temperature mechanism. A gas located in the high-temperature low-pressure zone has a greater gas temperature than the gas located in the low-temperature high-pressure zone. The gas located in the low-temperature high-pressure zone has a greater gas pressure than the gas located in the high-temperature low-pressure zone. The boundary separates the high-temperature low-pressure zone from the low-temperature high pressure zone. The pressure actuated mechanism is located within the boundary and is configured for opening at a specified gas pressure in either the high-temperature low-pressure zone or the low-temperature high-pressure zone.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: April 1, 2014
    Assignee: General Electric Company
    Inventors: Carlos Miguel Miranda, Edward William Cummings