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| Number | Title | Issue Date |
| 6929097 | Lubrication device for stage-geared gearbox An arrangement for providing a lubrication device for a stage-geared gearbox (1, 2) arranged in a motor vehicle. The gearbox (1, 2) has an input shaft (4), intermediate shaft (5), which has at least one gear meshing with a gear on the inp... | 08/16/2005 |
| 6927502 | Three-phase asynchronous motor driven azimuthal drive for wind power installations Wind power installations generally have an active drive for wind direction tracking. The active drive rotates the machine housing of the wind power installation in such a way that the rotor blades of the rotor are oriented in the direction of the wind. That drive wh... | 08/09/2005 |
| 6926494 | Hydraulic turbine with increased power capacities A hydraulic turbine with increased power capacities for new or existing hydroelectric installations. The turbine has a larger axial runner wheel and a reshaped runner ring peripherally extending around the runner wheel. A draft tube with a larger elbow section exten... | 08/09/2005 |
| 6926490 | Self-actuated bearing cooling flow shut-off valve A compressor assembly comprises a compressor having a rotor comprising a shaft with fan blades for compressing air. An air bearing serves to cool the shaft of the rotor. A compressor air inlet receives air for the fan blades, which is then exhausted from the fan bla... | 08/09/2005 |
| 6921242 | Centrifugal slurry pump An apparatus and method for a slurry pump having improved erosion characteristics. The pump comprises a rotatable impeller having at least one impeller vane, an impeller shroud having an inlet for conveying slurry to the impeller and an outlet for discharging slurry... | 07/26/2005 |
| 6920799 | Magnetic flow meter with reference electrode An magnetic flow meter is provided which includes a reference electrode configured to electrically couple process fluid flowing within a flowtube of the flow meter. The reference electrode is adapted to measure potential of the process fluid. A current limiter is co... | 07/26/2005 |
| 6920794 | Method and apparatus for rotary machine vibration control A vibration control system for a rotary machine having a rotor, includes a sensor disposed within the rotary machine for sensing vibration of the rotor, a vibration damping device disposed within the rotary machine for imparting a reaction force to the rotor, and a ... | 07/26/2005 |
| 6918740 | Gas compression apparatus and method with noise attenuation A gas compression method and method according to which an impeller rotates to flow fluid through a casing, and a plate is disposed in a wall of the casing. At least one series of cells are formed in the plate to form an array of acoustic resonators to attenuate acou... | 07/19/2005 |
| 6918747 | Method and system for detecting damage to the rotor of an aircraft engine A method and system for detecting damage to the rotor of an aircraft engine using devices for measuring vibration and speed in order to acquire data relating to the speed of the rotor and also to the amplitude and the phase of rotor vibration during a determined fli... | 07/19/2005 |
| 6918739 | Seal support A turbine engine has a rotor shaft rotatably carried within a non-rotating support structure. A seal is carried by the support structure circumscribing the shaft and having a flexible sealing element for sealing with the shaft. A chamber is located between the seal ... | 07/19/2005 |
| 6912480 | Method and apparatus for determining the mass flow through an engine A method for determining the total mass flow through an engine (10) comprises measuring (32) the fuel flow to the engine (10) and measuring the concentration of carbon dioxide in the gases exhausted (22) from the engine (10). The c... | 06/28/2005 |
| 6910370 | Apparatus and method for preventing inlet vortex A method of operating a gas turbine engine for testing, comprising: providing an aircraft on a tarmac, the aircraft having a gas turbine engine with an inlet; selecting a power setting for the engine that is capable of producing a vortex between the inlet and the ta... | 06/28/2005 |
| 6910861 | Turbomolecular vacuum pump with the rotor and stator vanes A turbomolecular vacuum pump (1) has an inlet (3) and an outlet (4) and rotor and stator vanes (5 and 6), situated between the inlet and outlet. The rotor vanes (6) have front sides (11) and rear sides (12) in ... | 06/28/2005 |
| 6907381 | System for aiding the preparation of operation and maintenance plans for a power-generation installation In order to provide an operation and maintenance planning aiding system for a power generation installation which prepares an operation plan for a plurality of power generation units by making use of actual plant data and based on a total judgment including a variet... | 06/14/2005 |
| 6905317 | Oil pump apparatus An oil pump apparatus includes a body, a first rotor and a second rotor disposed in the body so as to be able to rotate and a regulator valve mechanism for regulating the pressure of oil discharged to portions of an engine, wherein the regulator valve mechanism is d... | 06/14/2005 |
| 6907383 | Flow diagnostic system A flow diagnostic system for a flow sensing element and impulse lines. A pressure transmitter coupled to the impulse lines provides digital pressure data to a control system. The control system provides the pressure data and real time clock readings to a diagnostic ... | 06/14/2005 |
| 6899513 | Inflatable compressor bleed valve system A compressor bleed valve system for bleeding air from a gas turbine engine compressor comprises a bladder inflatable between at least a collapsed position and an expanded position for selectively opening and closing a compressor airbleed passage. ... | 05/31/2005 |
| 6896475 | Fluidic actuation for improved diffuser performance A diffuser includes an opening along the diffuser wall for preventing or delaying boundary layer separation of the main flow. The opening may include a curved passageway having a curvature convex relative to the main flow for utilizing the Coanda effect. A gas turbi... | 05/24/2005 |
| 6893221 | Fan control A method for controlling fan operation that includes detecting a stopped fan and attempting to start the stopped fan. The method includes attempting to start the stopped fan again after at least one first time interval when the fan does not start. The method include... | 05/17/2005 |
| 6890142 | Direct condensing turbine A turbine rotor has a spiral involute channel formed in a rotor disk. In one embodiment, the channel has an inlet near the center of the disk and an outlet near the periphery of the disk. Working fluid of the turbine enters the channel at the inlet and is directed a... | 05/10/2005 |
| 6890153 | Castellated turbine airfoil A turbine airfoil includes pressure and suction sidewalls joined together at opposite leading and trailing edges, and at a forward bridge spaced behind the leading edge to define a flow channel. The bridge includes a row of impingement holes. The flow channel includ... | 05/10/2005 |
| 6887031 | Habitat friendly, pressure conversion, wind energy extraction A habitat friendly, pressure conversion, wind energy extraction system is disclosed for safely extracting usable energy from wind. The system includes one or more shrouds or concentrator wings that convert the dynamic pressure of wind into relatively lower static pr... | 05/03/2005 |
| 6884020 | Turbine driven with a fluid medium A turbine for production of electric energy in flowing water, comprising a number of shaped foils (5), each foil (5) being attached with a shaft (6) to a supporting structure (3) which is connected to the main shaft (2) of the turb... | 04/26/2005 |
| 6877947 | Method and apparatus for early fault detection in centrifugal pumps A method and apparatus for early fault detection in a centrifugal pump equipped with a balancing device, where the balancing device has an axial gap and optionally at least one radial gap through which a balancing flow is conducted, and with a spring element which a... | 04/12/2005 |
| 6857845 | System and method for detecting rotating stall in a centrifugal compressor A system and method is provided for detecting and controlling rotating stall in the diffuser region of a centrifugal compressor. The process begins with the detection or sensing of acoustic energy associated with the onset of rotating stall. A pressure transducer is... | 02/22/2005 |
| 6846154 | Pump turbine In a pump turbine which can be operated in a pumping mode or a generating mode by switching the rotating direction of a runner, the discharge passing through the runner is adjusted based on a wicket gate opening; the speed of the runner is sensed; a target speed is ... | 01/25/2005 |
| 6840734 | Method of operating a turbine A method of controlling the speed of rotation of a turbine, the turbine comprising a rotor, the method comprising the steps of measuring or estimating power or torque related to the energy production of the turbine, processing the measured or estimated power or torq... | 01/11/2005 |
| 6837674 | Safety jacket for rotary blade housings A flexible jacket for a vacuum blower having rotatable blades in a blade housing. The jacket is made from heavy duty, substantially impenetrable, bullet resistant material such as KEVLAR brand sheet material which is placed about the blade housing to prevent any sev... | 01/04/2005 |
| 6837673 | Turbine-unit disassembling method and turbine unit Supports are provided on the upper outer casing of each turbine of a turbine unit, and the upper inner casing of the turbine is temporarily placed on the supports of the upper outer casing, which is temporarily placed on the operating floor. By placing the casings t... | 01/04/2005 |
| 6837681 | Wind power plant with a particle sensor Wind power installations using more modern technology have long been known. Such wind power installations have rotors comprising at least one or more rotor blades. The rotors and accordingly the rotor blades carried thereby of wind power installations are subjected ... | 01/04/2005 |
| 6830426 | Gas injection seal system for a centrifugal pump A set of seals is installed on the impeller of a centrifugal pump that allows a low viscosity fluid to be injected into a chamber between the impeller shroud and the casing sidewall. A seal ring, with a number of grooves formed in it is installed on the tip of the i... | 12/14/2004 |
| 6827547 | Engine cooling fan having improved airflow characteristics A stator and diffuser assembly is introduced between an engine cooling fan and engine. The stator acts increase the static efficiency per unit airflow of the axial fan by reducing the rotational component of air traveling through the fan and by directing the airflow... | 12/07/2004 |
| 6824347 | Valve and related methods for reducing fluid pressure and generating power A valve for reducing fluid pressure in a fluid distribution network uses the energy released from the fluid to generate power. The valve includes a housing, a turbine disposed within the housing, a fluid reservoir, and a flow control device operable to generate a tu... | 11/30/2004 |
| 6802693 | Vortex attractor with vanes attached to containing ring and backplate A vortex generating apparatus has the capability of attracting and removably adhering one or more solid objects. The apparatus comprises an impeller housed within a shell. The vortex attractor generates a vortical fluid flow generally in the form of a helical or spi... | 10/12/2004 |
| 6798080 | Hydro-power generation for a water treatment system and method of supplying electricity using a flow of liquid A hydro-power generation system for use in conjunction with a water treatment system is disclosed. The embodiments of the hydro-power generation system include an impeller rotatably positioned in a housing. The impeller is rotatably coupled with a generator. When wa... | 09/28/2004 |
| 6793456 | Turbo-compressor and capacity control method thereof A turbo-compressor comprises a compressor main body for compressing an operation fluid, an inlet guide vane apparatus being provided on a suction side of the compressor main body and having guide vanes, and a blow-off valve being provided in a discharge said compres... | 09/21/2004 |
| 6793455 | Method and apparatus for active control of surge in compressors Methods for avoiding surge in a compressor are provided. A representative method includes detecting precursor information of the compressor and controlling the compressor based on the precursor information to avoid a surge condition in the compressor. The control sc... | 09/21/2004 |
| 6789998 | Aperiodic struts for enhanced blade responses A system and method for reducing blade strain on the fan blades of an air cycle machine is proposed. The method involves a strut arrangement that is positioned in a cylindrical air passage upstream from the fan assembly. The strut arrangement includes at least three... | 09/14/2004 |
| 6786694 | Gas turbine and method of operating a gas turbine In a gas turbine, having a number of turbine blades/vanes respectively combined to form blade/vane rows, each of the turbine blades/vanes including an integrated cooling air duct, the cooling air requirement is to be kept particularly low in conjunction with reliabl... | 09/07/2004 |
| 6783319 | Method and apparatus for supporting rotor assemblies during unbalances A bearing assembly for a gas turbine engine rotor includes a paired race, a bearing, a mounting joint, and a plurality of mechanical fuses. The paired race includes an outer race and an inner race. The bearing is between the inner and outer races, and is configured ... | 08/31/2004 |
