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| Number | Title | Issue Date |
| 7805947 | Aircraft with disengageable engine and auxiliary power unit components Several improvements to an aircraft turbine engine and Auxiliary Power Unit (APU) are disclosed, as well as methods of using these improvements in routine and emergency aircraft operations. The improvements comprise the addition of cockpit-controllable clutches that... | 10/05/2010 |
| 7260952 | Fluid machine A fluid machine has a compressor device for compressing refrigerant of a refrigerating cycle for an automotive vehicle, an electric rotating device operating as an electric motor for generating a rotational driving force to drive the compressor device or operating a... | 08/28/2007 |
| 7185496 | Synchronizing stationary clutch of compression braking with a two spool gas turbine engine A synchronizing stationary clutch system for compression braking in a two spool gas turbine engine is provided by the present invention. The synchronizing stationary clutch system allows the two shafts of a two spool gas turbine engine to be reliably coupled at any ... | 03/06/2007 |
| 7186081 | Air turbine starter enhancement for clearance seal utilization An air turbine starter (ATS) configured to couple to a gearbox, the ATS including an output shaft having an outer peripheral surface, a gearbox section, and an ATS section, the gearbox section configured to be disposed within, and coupled to, the gearbox and the ATS... | 03/06/2007 |
| 7147430 | Pneumatic valve control using downstream pressure feedback and an air turbine starter incorporating the same A starter air valve assembly includes a valve body, a flow control valve, a rate control servo mechanism, and a valve actuator. The valve body defines a flow passage having at least an inlet port and an outlet port. The valve is disposed at least partially within th... | 12/12/2006 |
| 7140240 | Electric engine start system with inspection mode A turbine engine inspection arrangement utilizes a motor that is otherwise utilized for starting the engine. An inspection interface allows for communicating with a motor controller to operate the motor in an inspection mode. During inspection, the motor moves the c... | 11/28/2006 |
| 7117683 | Main engine electric start system A main engine electric start system for gas turbine propelled aircraft that employs a low-power AC electrical power system to serve as an independent grid to control the functions of induction-type dynamoelectric machines coupled to the main propulsion engines and A... | 10/10/2006 |
| 7107774 | Method and apparatus for combined cycle power plant operation Methods and apparatus are disclosed for starting up a combined cycle plant using a startup duct to connect an auxiliary engine to the inlet of a plurality of HRSGs or other heat recovery systems. Each HRSG is fed by a combustion turbine. Dampers are supplied to isol... | 09/19/2006 |
| 7104072 | Combined power main engine start system A starting system for starting the propulsion engines of gas turbine powered aircraft that combines power sources delivered by the APU so that essentially then entire power delivered by the APU for pneumatic, hydraulic and electric power is applied to corresponding ... | 09/12/2006 |
| 7094019 | System and method of surge limit control for turbo compressors A system and method of surge limit control for turbo compressors including a turbo compressor having an inlet and an outlet, an anti-surge valve, a variable speed drive to operate the compressor, a rotational speed transmitter, an inlet temperature transmitter, an i... | 08/22/2006 |
| 7066710 | Pneumatic valve control having improved opening characteristics and an air turbine starter incorporating the same A starter air valve assembly includes a valve body, a flow control valve, a rate control servo mechanism, and a valve actuator. The valve body defines a flow passage having at least an inlet port and an outlet port. The valve is disposed at least partially within th... | 06/27/2006 |
| 7059136 | Air turbine powered accessory An aircraft accessory system includes an aircraft engine powered direct air turbine driven accessory and an air turbine drivingly directly connected by an air turbine shaft to the accessory. The air turbine includes a variable geometry turbine nozzle in selectable d... | 06/13/2006 |
| 7033133 | Air turbine starter having a low differential check valve An air turbine starter is provided that includes a check valve assembly. The check valve assembly comprises a valve body, a valve seat and a valve element. The valve body includes an inlet port, an outlet port, and a flow passage extending therebetween. The valve se... | 04/25/2006 |
| 7033134 | Air turbine starter having a force balanced, pressure energized, weighted check valve An air turbine starter is provided that includes a check valve assembly for placement between a first environment, at least a portion of which is at a first pressure (P1), and a second environment, at least a portion of which is at a second pressure (P | 04/25/2006 |
| 7000405 | Gas turbine apparatus and a starting method thereof A gas turbine starting method, comprising the steps of rotatively driving a turbine by a motor coupled to the turbine, while at the same time supplying a compressed air to a combustor by an air compressor operating in interlocking motion with the turbine, starting a... | 02/21/2006 |
| 7000399 | System for warming pressurized gas A plurality of vessels contains pressurized gas. Each vessel fluidly communicates with an adjacent vessel through a line. A heat exchanger is positioned in a heat conducting relationship with each line. The system includes an exhaust valve communicating with lower p... | 02/21/2006 |
| 6971241 | Dual mode power unit having a combustor bypass system A gas turbine engine integrates the functions of an auxiliary power unit (APU) with one or more functions of an ECS, and that is capable of operating in both an unfired mode and a fired mode. The gas turbine engine includes a combustor system that is configured to a... | 12/06/2005 |
| 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 |
| 6960900 | Method and apparatus for starting a gas turbine using a polyphase electric power generator A method to start a combined unit gas turbine and electrical unit having a static start drive including the steps of: applying a variable frequency voltage from the static start drive to a winding of the generator to accelerate the combined unit to a turbine self-su... | 11/01/2005 |
| 6941760 | Start system for expendable gas turbine engine A start system for an expendable gas turbine engine includes a pressurized oxygen source and a pyroflare igniter. The pressure source communicates oxygen to a compressor through a first passage to spin-up a rotor and communicates oxygen to a combustor through a seco... | 09/13/2005 |
| 6892544 | Flow divider & purge air system for a gas turbine engine A purge air and fuel flow divider module (15) independently directs fuel flow to a plurality of manifolds (25, 27 and 29) and independently purges fuel from these manifolds with air when they are not flowing fuel. A secondary manifold (29... | 05/17/2005 |
| 6851267 | Compact quick attach starter-generator installation A mounting system, for installing a starter-generator to an accessory housing, where the starter-generator has a mounting end with a connecting flange and a cooling air outlet radially inward of a peripheral starter-generator housing edge, and where the accessory ho... | 02/08/2005 |
| 6829899 | Jet fuel and air system for starting auxiliary power unit A system for starting an APU, including an air control valve assembly located in the air flow passageway extending between a source of pressurized air and a turbine power modulator. The system further includes a fuel control valve assembly located in the fuel flow p... | 12/14/2004 |
| 6792760 | Method for operating a turbine A method of operating a turbine arranged in a compressed air energy storage power generation plant comprises an open-loop control of an air mass flow applied within a lower turbine speed range and a closed-loop control of the turbine speed within a higher turbine sp... | 09/21/2004 |
| 6766647 | Method for ignition and start up of a turbogenerator A method for ignition and start up of a gas turbine engine in which the fuel flow is supplied to the combustor at a substantially constant rate for ignition and the gas turbine engine is ramped up at a preset acceleration rate to a speed to provide a supply of combu... | 07/27/2004 |
| 6715296 | Method for starting a power plant The invention relates to a method for starting a power plant (1), in particular a gas storage power plant, with the following steps: S1: ignition of an auxiliary combustion chamber (19), S2: operation of the auxiliary combustion chamber (... | 04/06/2004 |
| 6694746 | Micro volume actuator for an air turbine starter An air turbine starter system and air turbine starter valve that has a microvolume actuator to prevent the connected butterfly valve from opening too quickly. Air turbine starter valves can in some circumstances freeze shut, but may be opened by normal ac... | 02/24/2004 |
| 6681579 | Air turbine starter with fluid flow control An improved air turbine starter that includes fluid flow control devices. The devices may be check valves, for example normally open check valves. The check valves may be located in fluid flow paths between the starter and the gearbox to which it is mount... | 01/27/2004 |
| 6644033 | Tip impingement turbine air starter for turbine engine A gas turbine jet engine having a channel in a turbine casing through which a quantity of compressed air from a pressurized air source is introduced to start the gas turbine jet engine. The compressed air is expanded and accelerated by a series of diffuse... | 11/11/2003 |
| 6637207 | Gas-storage power plant The present invention relates to a gas-storage power plant, comprising a gas reservoir (8) in which a gas can be stored under pressure, a turbogroup (2) which has at least one turbine (3, 5), a gas-supply line (9) which leads from the gas reservoir (8) to th... | 10/28/2003 |
| 6606853 | Rocket propulsion system A rocket propulsion system, comprising: a rocket engine; and a turbopump supplying fuel or oxidizer to the rocket engine. The turbopump can supply an; adjustable flow of the fuel or oxidizer to throttle the rocket engine. The turbopump includes a catalyst... | 08/19/2003 |
| 6530226 | Multistep steam power operating method for generating electric power in a cycle and device for the implementation thereof The aim of the invention is to further improve the closed cycle for generating electric power in such a way that efficiency is enhanced and general pressure and temperature requirements regarding the working fluid used are substantially reduced. The inven... | 03/11/2003 |
| 6487862 | Low cost jet engine A low cost jet engine for ground based application which is constructed with a conventional automotive turbocharger including a compressor and a turbine. An independent small combustor unit is mounted on the turbocharger between the compressor and the tur... | 12/03/2002 |
| 6324832 | Ampoule with starting fuel for igniting LRE propellant components The invention relates to the field of automatic equipment and, in particular, to devices for chemical ignition of liquid rocket engine propellant components. The ampoule comprises a body, diaphragm units mounted at the body inlet and outlet, each of which... | 12/04/2001 |
| 6272838 | Method and apparatus for controlling the inlet duct leading to an auxiliary power unit For gas turbine engine mounted in an aircraft, a closed loop control system, and method therefor, for the inlet duct is provided. Under this control system the flow area of the inlet duct is varied by opening and closing a duct door. The control assures t... | 08/14/2001 |
| 6178734 | Combined cycle power generation plant and operating method thereof A combined cycle power generation plant generally comprises a gas turbine plant, a steam turbine plant and an exhaust heat recovery boiler, which further includes a low temperature reheat steam system for supplying a turbine exhaust steam from a high pres... | 01/30/2001 |
| 6101806 | Tri-mode combustion system A turbine engine is disclosed that is capable of operating in an emergency power mode, an air breathing auxiliary power mode and a bypass bleed environmental control mode. In a preferred embodiment of the invention, the engine comprises in working fluid f... | 08/15/2000 |
| 5993163 | Demand system for pneumatic source with controller responsive to bypass air flow rate A demand system is disclosed for controlling the output airflow from a pneumatic source in response to changes in airflow demand. The source includes a pressure sensitive bypass mechanism in fluid communication with a discharge manifold to divert unwanted... | 11/30/1999 |
| 5913807 | Turbojet engine start system A turbojet engine one-shot start system utilizes ignition and fuel delivery system components capable of pneumatic actuation and pressurization to initiate the engine start sequence thereby obviating the need for expensive shielded electrical controls and... | 06/22/1999 |
| 5911678 | Gas turbine engine starting A gas turbine engine is provided with an air supply adapted to provide air to an engine starter system. The engine is also provided with an oil based lubrication system and control system. The control system is adapted to provide oil to the lubrication sy... | 06/15/1999 |
