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| Number | Title | Issue Date |
| 8037686 | Uncoupled, thermal-compressor, gas-turbine engine The invention is for a continuous-combustion, closed-cycle, gas turbine engine with a regenerator and a displacer. It has embodiments that remove heater and cooler interior volumes during gas compression, which enable it to scale well to very large sizes. Low combus... | 10/18/2011 |
| 8015812 | Power conversion systems Power generation systems and methods are provided with features directed to various innovations including ones relating to the conversion of concentrated solar and biomass energy to electricity, load-shifting of electrical power supply systems, gas turbine devices a... | 09/13/2011 |
| 7658073 | Turbine systems and methods for using internal leakage flow for cooling A cooling system for a turbine with a first section and a second section. The first section may include a first line for diverting a first flow with a first temperature from the first section, a second line for diverting a second flow with a second temperature less ... | 02/09/2010 |
| 7546732 | Dynamic combustion chamber A system for converting potential energy into heat including a tower configured to contain a fluid and to permit the formation of a substantially nitrogen-free combustion chamber defined by the tower and the surface of the fluid in the tower and at a pressure less t... | 06/16/2009 |
| 7426832 | Universal thermodynamic gas turbine in a closed Carnot cycle A closed-cycle gas turbine power generator system with a combined cycle system with a neutral gaseous primary motive medium and a secondary phase change medium with a lower pressure sub-system having a counter-rotating compressor module in combination with a counter... | 09/23/2008 |
| 7392656 | Steam turbine plant A steam turbine plant includes an extraction system and a control system for controlling the steam extraction. The extraction system includes an extraction steam flowmeter and a stop valve. The control system sets a warning flow and an extracted steam stop flow for ... | 07/01/2008 |
| 7367192 | Combined cycle plant In a combined cycle plant that combines a conventional thermal power plant and a gas turbine plant, there is provided a dump system 1 that connects a main steam pipe 60 with the condenser 25 and dumps the steam generated by the boiler 10 ... | 05/06/2008 |
| 7325401 | Power conversion systems Power generation systems and methods are provided with features directed to various innovations including ones relating to the conversion of concentrated solar and biomass energy to electricity, load-shifting of electrical power supply systems, gas turbine devices a... | 02/05/2008 |
| 7284372 | Method and apparatus for converting thermal energy to mechanical energy A method and apparatus for converting thermal energy to mechanical energy which can use a wide range of fuels and perform with a high efficiency. Operating on a little utilized thermodynamic cycle of isentropic compression, isothermal expansion, isentropic expansion... | 10/23/2007 |
| 7090393 | Using thermal imaging to prevent loss of steam turbine efficiency by detecting and correcting inadequate insulation at turbine startup The invention involves the use of thermal imaging equipment to take infrared images of a steam turbine during start-up. The exterior temperatures developed from the infrared images are correlated with turbine vibration data to determine which insulation temperature ... | 08/15/2006 |
| 6964167 | Method for operating a steam power installation and corresponding steam power installation The invention relates to a method for operating a steam power installation, whereby steam produced in a boiler is condensed in a condenser after passing through at least one turbine, and the condensate obtained is preheated and redirected back to the boiler as boile... | 11/15/2005 |
| 6957540 | Multi-mode complex cycle power plant A power plant (10) including a boiler unit portion (12) and a gas turbine unit portion (14) operable in multiple modes, including operation of the boiler unit portion independent of the gas turbine unit portion. Exhaust gas from the gas turbine ... | 10/25/2005 |
| 6912263 | Method and device for feeding at least one steam generator of a pressurized-water nuclear reactor during periods of reactor shutdown At least one injector condenser (20) is used to supply secondary feedwater to the steam generator (1) during a phase in the course of which the temperature and the pressure of the coolant of the reactor coolant system (2) of the nuclear reactor ... | 06/28/2005 |
| 6782638 | Method and device for supplying steam to the drying section in a papermaking machine A method for increasing the drying capacity of a steam group (6) in a drying section of a pulp or paper machine. According to the method, a main steam flow (3) having a first steam pressure is fed to the steam group (6), the main steam flow (... | 08/31/2004 |
| 6516617 | Method for transforming heat using a vortex aggregate The aim of the invention is to reduce exhaust steam losses and thus efficiency losses in condensation power stations such that the steam does not expand to the attainable vacuum (as is the case in the prior art) but, after extraction from a turbine or the... | 02/11/2003 |
| 6497099 | Method and device for controlling a steam turbine with a steam bleed A method for controlling a steam turbine with a steam bleed for various operational tasks is provided. The operational tasks are each characterized by the type of the controlled variables used for controlling the steam turbine. A control structure is used... | 12/24/2002 |
| 6145317 | Steam turbine, steam turbine plant and method for cooling a steam turbine A steam turbine with a steam inlet region, an exhaust-steam region and a blading region surrounded by a turbine housing and disposed axially therebetween. Furthermore, a cooling-fluid inlet is provided which can be closed and opened by a closing member an... | 11/14/2000 |
| 6134891 | Method and device for quick power regulation of a power station system A quick power regulation for a power station system is achieved by activating energy storage mechanisms of the power station system process. The energy storage mechanisms are used to increase the generator power. At least the generator power and a thermal... | 10/24/2000 |
| 6109037 | Feed water heating system for power-generating plant A feed water heating system for heating a feed water for a power-generating plant having a steam turbine, a condenser and a steam generator, comprises: a steam injector unit for receiving a plurality of bled steams having different pressures extracted fro... | 08/29/2000 |
| 6052996 | Heat-work cycle for steam cycle electric power generation plants A heat recovery apparatus and method suitable for steam cycle electrical generating plants including at the exhaust of a steam turbine one or more heat transfer units for capturing the heat in steam, including the latent heat of vaporization of the steam.... | 04/25/2000 |
| 6052997 | Reheat cycle for a sub-ambient turbine system An improved combined cycle low temperature engine system is provided in which a circulating expanding turbine medium is used to recover heat as it transverses it turbine path. The recovery of heat is accomplished by providing a series of heat exchangers a... | 04/25/2000 |
| 6047549 | Power plant facility A power plant facility having gas turbines, steam turbines and mixed gas/steam turbines. By use of appropriate networking of the three turbine facilities, an approach to isothermal heat supply and removal is achieved with optimal utilization of waste heat... | 04/11/2000 |
| 6047548 | Gas and steam turbine plant and method for operating the same A gas and steam turbine plant includes a waste-heat steam generator disposed downstream of a gas turbine on the exhaust-gas side. The waste-heat steam generator has heating surfaces connected into a water-steam circuit of a steam turbine having a high-pre... | 04/11/2000 |
| 6032468 | Method and device for generating steam A conventional steam power plant or a combined power plant is provided with intermediate superheating. At least part of the superheated steam in the superheater (3) and the intermediately superheated steam in the intermediate superheater (9) are subject t... | 03/07/2000 |
| 5784888 | Method and apparatus of conversion of a reheat steam turbine power plant to a no-reheat combined cycle power plant A method and apparatus is disclosed for converting a reheat steam turbine plant to a non-reheat, combined cycle plant without requiring internal modification of the steam turbine unit. A reheat steam turbine power plant with a boiler and a steam turbine w... | 07/28/1998 |
| 5570578 | Heat recovery method and device suitable for combined cycles A heat recovery method is disclosed suitable for combined gas turbine/steam turbine cycles including at the exhaust of a gas turbine a waste heat boiler in which water is first treated in a degassing unit connected to a first evaporator and comprising a c... | 11/05/1996 |
| 5555731 | Preheated injection turbine system A power turbine system operating in an organic Rankine cycle with a thermodynamic medium flowing therethrough, including a power turbine (10) having an inlet connected to a conduit (50) and an exhaust (14), a lower temperature engine system having a heat ... | 09/17/1996 |
| 5440882 | Method and apparatus for converting heat from geothermal liquid and geothermal steam to electric power A method and apparatus for implementing a thermodynamic cycle that includes: (a) expanding a gaseous working stream, transforming its energy into usable form and producing a spent working stream; (b) heating a multicomponent oncoming liquid working stream... | 08/15/1995 |
| 5404724 | Boiler feedpump turbine drive/feedwater train arrangement An improved cycle arrangement for a steam turbine system in which an auxiliary turbine drives a boiler feedwater pump. The turbine system includes a primary turbine driving an electric power generator. The primary turbine includes a high pressure section ... | 04/11/1995 |
| 5346592 | Combined water purification and power of generating plant A combined water purification and power generating plant is disclosed having special features designed to maximize the cycle thermal efficiency and salt recovery, with little or no concentrated brine produced therefrom. Using the plant, a volume of salt w... | 09/13/1994 |
| 5149247 | Single HP-MP internal stator for a steam turbine with controlled steam conditioning The HP-MP steam turbine body has a single internal stator surrounding both the HP and the MP portions of the rotor. The internal stator co-operates with the external stator to define axial positioning means for the internal stator and to define a thermal ... | 09/22/1992 |
| 5044163 | Process and plant for generating steam using waste heat In plants for generating steam using waste heat, the heat in the hot waste gases flowing through the steam generator must be utilized with maximum efficiency. To this end, the feed water is branched into two streams, one of which flows into the high-press... | 09/03/1991 |
| 4996846 | Method of and apparatus for retrofitting geothermal power plants An existing geothermal power plant, utilizing geothermal steam from a production well in a geothermal field to drive a multi-stage steam turbine when the available steam pressure from the production well for rated mass for steam through the turbine is les... | 03/05/1991 |
| 4953355 | Steam turbine installation with adjusted bleeding A steam turbine installation with bleeding adjusted to a predetermined pressure P, the installation driving a load and including a bleed outlet disposed between two successive stages, wherein the bleed pressure P is adjusted over a range D of bleed rates ... | 09/04/1990 |
| 4819436 | Deaerator pressure control system In a steam turbine power plant, a deaerator is heated and pressurized by extraction steam from the steam turbine for the purpose of preheating feedwater to the power plant boiler. Under certain conditions, the available steam to the deaerator is insuffici... | 04/11/1989 |
| 4799356 | Synthesis gas generation complex and process A synthesis gas-power generation complex is disclosed, the complex being characterized by ability to generate sufficient electrical power for internal use and for export, and by structure for improved heat recovery and utilization. A process for synthesis... | 01/24/1989 |
| 4753077 | Multi-staged turbine system with bypassable bottom stage An improved multi-stage turbine system is provided which includes a high pressure turbine stage assembly and at least one lower pressure turbine stage assembly. Each of these turbine assemblies preferably has an inlet opening for introducing a thermodynam... | 06/28/1988 |
| 4715185 | Method and means for increasing energy output and thermal efficiency of an energy cycle such as the Rankine steam cycle Multi-stage extraction steam is taken at varying pressures from a mixed pressure turbine and sequentially charged into closed path conveyor compartments to progressively increase the pressure of steam within the compartments. The highest pressure stage of... | 12/29/1987 |
| 4628693 | Casing for district heating turbine IP or HP casing for a turbine designed for cogeneration of electric power and heat for district heating purposes, comprising blades carried by a rotor (31) rotating in a stator (32), an inlet steam admission (8'), two exhausts (12' and 17') at different p... | 12/16/1986 |
| 4624110 | Fluid powered turbine A turbine/power transmission system using pressure fluid, i.e., steam to selectively drive one of a plurality of turbine wheels depending upon the power/torque output and rotary direction required of an output shaft.... | 11/25/1986 |
