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| Number | Title | Issue Date |
| 7513120 | Electrically coupled supercharger for a gas turbine engine A gas turbine engine, in particular a turboshaft engine, includes a spool having a turbine and a gas generator compressor mounted thereto, a source of heat positioned between the turbine and the compressor, a first shaft and a free turbine mounted to the first shaft... | 04/07/2009 |
| 7437877 | Compressor having low-pressure and high-pressure compressor operating at optimum ratio between pressure ratios thereof and gas turbine engine adopting the same A compressor having a front fan, which rotates to compress intake air, a single-stage low-pressure compressor which is disposed behind the front fan to compress intake air, and a single-stage high-pressure compressor which compresses the compressed air compressed by... | 10/21/2008 |
| 7384541 | Use of a two-phase turbine in a hydrotreatment process After passing into reaction section R, the hydrocarbon feedstock C mixed with hydrogen H is expanded in device D. The expansion is brought about by a single-phase turbine until a gas volume ratio of 5% is reached, then expansion is brought about in a two-phase turbi... | 06/10/2008 |
| 7372175 | Two-spool bypass turbojet with a rear electricity generator, and an air flow connection device and system A two-spool bypass turbojet includes a low-pressure spool having a rear portion carrying a low-pressure turbine provided with a low-pressure rotor. The turbojet includes a support structure connected to a casing and to a rear bearing in which the rotor is mounted. T... | 05/13/2008 |
| 7353647 | Methods and apparatus for assembling gas turbine engines A method facilitates assembling a gas turbine engine including a compressor and a rotor assembly coupled in axial flow communication downstream from the compressor. The method comprises coupling a bypass system in flow communication with the compressor to channel a ... | 04/08/2008 |
| 7308794 | Combustor and method of improving manufacturing accuracy thereof An improved gas turbine engine combustor with a liner and a dome connected to the liner trough small radius transition portions only, the dome having a plurality of fuel nozzles mounted therein and an interior directly exposed to a combustion region of the combustor... | 12/18/2007 |
| 7284363 | Method of power generation for airborne vehicles A closed cycle turbine system is provided for the generation of power in a light, high altitude airborne vehicle. The closed cycle turbine system may operate according to either the Brayton or the Rankine cycles. The working fluid for the closed cycle may be alterna... | 10/23/2007 |
| 7246482 | Gas turbine engine bleed air power assist system and method A bleed air power assist system is coupled to a gas turbine engine that includes a high pressure turbine, a low pressure turbine, and an electrical generator driven by the high pressure turbine. The bleed air power assist system selectively bleeds air discharged fro... | 07/24/2007 |
| 7240478 | Highly supercharged regenerative gas turbine The present invention comprises a highly supercharged, regenerative gas-turbine system. The gas turbine comprises a compressor, a regenerator, a combustor, and an expander. A pre-compressor pressurizes air going into the compressor section of the gas turbine. A cool... | 07/10/2007 |
| 7231770 | Onboard supplemental power system at varying high altitudes Systems and methods for supplementing a power system to achieve consistent operation at varying altitudes are disclosed herein. A hybrid power system comprising a single power source driving multiple generators may implement a power recovery turbine to drive a super... | 06/19/2007 |
| 7229249 | Lightweight annular interturbine duct An interturbine duct for channelling combustion gases between two axial turbine stages. The interturbine duct is made of sheet material to provide a relatively lightweight construction. ... | 06/12/2007 |
| 7229247 | Duct with integrated baffle An integrated duct and baffle arrangement employing a hairpin transition area such that the construction is adapted to flex under thermal conditions. ... | 06/12/2007 |
| 7188475 | Starting and controlling speed of a two spool gas turbine engine Two spool gas turbine engines are often used to drive variable speed loads, such as an electric generator, or the fan/propeller of aircraft engines. The gas turbine engine must be designed to withstand transient speed and temperature conditions which are encountered... | 03/13/2007 |
| 7185495 | System and method for improving thermal efficiency of dry low emissions combustor assemblies A gas turbine engine system having improved thermal efficiency, which comprises: (1) an inlet air stream; and (2) a dry low emissions combustor assembly having an air inlet for receiving the inlet air stream, at least one bleed air port and an air outlet for dischar... | 03/06/2007 |
| 7185498 | Modular gas turbine Method and arrangement for providing a gas turbine (1) having a duct (11) for carrying gas from a gas turbine inlet (9) to a gas turbine outlet (10) and an outer housing (19, 20, 21) arranged radially outside a wall structure (1... | 03/06/2007 |
| 7159819 | Mounting structure for mounting a turboprop under an aircraft wing A mounting structure for mounting a turboprop under an aircraft wing includes a rigid structure provided with an aft underwing box, and at least one forward rigid section. Each forward rigid section has two transverse frames at a spacing from each other. At least on... | 01/09/2007 |
| 7124487 | Method for controlling carbon formation on repaired combustor liners A method for controlling combustor liner carbon formation on repaired combustors includes making modular effusion panel subassemblies remote from the combustor liner; removing a non-effusion or damaged panel from the combustor liner; and replacing the non-effusion o... | 10/24/2006 |
| 7111462 | Onboard supplemental power system at varying high altitudes Systems and methods for supplementing a power system to achieve consistent operation at varying altitudes are disclosed herein. A hybrid power system comprising a single power source driving multiple generators may implement a power recovery turbine to drive a super... | 09/26/2006 |
| 7111464 | Acceleration control in multi spool gas turbine engine A gas turbine engine system comprises a first compression stage; a second compression stage; a combustor; a controller; a first sensor for sensing the speed of the first compression stage and providing a first indication of the sensed speed to the controller; and a ... | 09/26/2006 |
| 7100360 | Pulsed combustion engine A pulsed combustion device includes a support structure and a combustor carousel supported by the support structure and rotating relative thereto about an axis. The carousel has a number of combustion conduits in a circumferential array. Each conduit cyclically rece... | 09/05/2006 |
| 7093448 | Multi-action on multi-surface seal with turbine scroll retention method in gas turbine engine A gas turbine engine comprises a turbine scroll inside a combustor housing, discouragers with 90-degree bending angles, a radial nozzle contacting a forward bayonet on the forward side of the turbine scroll at a bayonet engagement point and a B-width measured betwee... | 08/22/2006 |
| 7089744 | Onboard supplemental power system at varying high altitudes Systems and methods for supplementing a power system to achieve consistent operation at varying altitudes are disclosed herein. A hybrid power system comprising a single power source driving multiple generators may implement a power recovery turbine to drive a super... | 08/15/2006 |
| 7090462 | Compressor bleed air manifold for blade clearance control A compressor bleed air manifold includes annular outer flanges on opposite sides of the generally annular manifold plenum. The outer and inner flange geometries may be circumferentially tailored to produce optimal case stiffness and thermal response for blade-to-cas... | 08/15/2006 |
| 7078825 | Microturbine engine system having stand-alone and grid-parallel operating modes A microturbine engine that includes a compressor that is operable to provide a flow of compressed air. The compressed air flows through a recuperator where it is preheated before delivery to a combustor. The preheated compressed air mixes with a fuel and is combuste... | 07/18/2006 |
| 7073335 | Gas storage power station The present invention relates to a gas storage power station (1) having a turbine group (3) and a compressor group (4). The turbine group (3) has at least one turbine (5, 6) and a generator (10). During normal operation of t... | 07/11/2006 |
| 7044718 | Radial-radial single rotor turbine A rotor for use in turbine applications has a radial compressor/pump having radially disposed spaced apart fins forming passages and a radial turbine having hollow turbine blades interleaved with the fins and through which fluid from the radial compressor/pump flows... | 05/16/2006 |
| 7045913 | Microturbine engine system A microturbine engine that includes a compressor that is operable to provide a flow of compressed air. The compressed air flows through a recuperator where it is preheated before delivery to a combustor. The preheated compressed air mixes with a fuel and is combuste... | 05/16/2006 |
| 7028461 | Uniaxial gas turbine system A uniaxial gas turbine system, comprising a uniaxial gas turbine, a rotary machine driven by the uniaxial gas turbine, a continuously variable transmission for transmitting a driving force from the uniaxial gas turbine to the rotary machine, and a control device for... | 04/18/2006 |
| 7021061 | Heat shield arrangement for a hot-gas conducting component, in particular for structural pieces of gas turbines and method for production of said arrangement The invention relates to a heat shield arrangement for a hot gas conducting structure, in particular a metal component of a gas turbine unit or combustion chamber, with the heat shield elements anchored adjacently on a support structure to cover a surface. Said heat... | 04/04/2006 |
| 7021063 | Reheat heat exchanger power generation systems A reheat heat exchanger is provided particularly for use in Rankine cycle power generation systems. The reheat heat exchanger includes a high pressure path between a high pressure inlet and a high pressure outlet. The reheat heat exchanger also includes a low pressu... | 04/04/2006 |
| 7015616 | System and method for providing coil retention in the rotor windings of a high speed generator A coil retention system for a rotor of a high speed electrical generator, such as an aircraft generator, that uses compliant material to fill variable dimension voids and/or gaps in the coils wound around the rotor of an electrical machine. During processing of the ... | 03/21/2006 |
| 7010399 | Methods and apparatus for fuel control using inertial measurement data Methods and apparatus for fuel control systems using inertial measurement data are disclosed. In one embodiment, a method for controlling a fuel flow includes comparing an acceleration condition of the aircraft with a predetermined threshold at which normal fuel flu... | 03/07/2006 |
| 6994603 | Integrated transmission bell housing The integrated bell housing on an engine, carries a supercharger, an alternator, a water pump and a starter. The engine has a crankshaft which is coupled to a flywheel in the casing as is a geared transmission. The flywheel has a first gear and a second gear. The fi... | 02/07/2006 |
| 6986641 | Engine control system A power turbine speed control system for a helicopter is disclosed which includes components for generating a power turbine speed signal based upon a demanded rotor speed, a high-order filter for filtering the power turbine speed signal by effectuating a rapid atten... | 01/17/2006 |
| 6973771 | Diffuser for terrestrial or aviation gas turbine A diffuser for a gas turbine engine, said diffuser being disposed between a last stage of a turbine and an exhaust casing, and comprising an outer annular wall and an inner annular wall together defining an annular passage for fluid that diverges in the flow directi... | 12/13/2005 |
| 6968701 | Engine integrated auxiliary power unit The present invention relates to an engine integrated auxiliary power unit. The engine comprises a high pressure spool which includes a high pressure compressor connected to a high pressure turbine and a low pressure spool which includes a low pressure compressor co... | 11/29/2005 |
| 6968697 | Integral compressor housing of gas turbine engines A turbine engine compressor design utilizing multiple component integration, thereby reducing the number of required engine components. In conventional compressor designs, a multiple component system makes it difficult to predict the structural behaviors due to ther... | 11/29/2005 |
| 6957539 | Power generator with low CO2 emissions and associated method The invention relates to a method for decreasing the level of carbon dioxide present in the fumes discharged by a power generator burning a mixture of a combustive agent and of a fuel containing hydrocarbons, wherein a gaseous mixture comprising at least part of sai... | 10/25/2005 |
| 6775987 | Low-emission, staged-combustion power generation There is provided a low-emission, staged-combustion power generation system and associated method for generating power. The power generation system and method combust a carbonaceous fuel with an oxidizing fluid, both of which are substantially free of nitrogen and s... | 08/17/2004 |
| 6735951 | Turbocharged auxiliary power unit with controlled high speed spool An APU system includes a gas turbine engine having a low pressure spool, a high pressure spool and an electrical generator. The electrical generator is driven by the high pressure spool which is governed to a constant speed. Conversely, the low pressure spool is not... | 05/18/2004 |
