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| Number | Title | Issue Date |
| 8132412 | Rankline-Brayton engine powered solar thermal aircraft A solar thermal powered aircraft powered by heat energy from the sun. A Rankine-Brayton hybrid cycle heat engine is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller or other mechanism for enabling sustained free flight... | 03/13/2012 |
| 8087247 | Heat engine/ heat pump using centrifugal fans An engine/heat pump is shown. Most of its parts rotate around the same central axis. It comprises two doubly connected chambers. Blades in each chamber substantially rotate with the chamber and may be firmly attached to the walls of the chamber, thus forming a modif... | 01/03/2012 |
| 8024929 | Thermal conversion device and process An apparatus and method for converting a differential in thermal energy between a first thermal source having a thermal conducting fluid and a second thermal source having a thermal conducting fluid is provided. The apparatus employs a first vessel and a second vess... | 09/27/2011 |
| 7603860 | High efficiency flexfuel internal combustion engine A heat engine includes a turbine (10), compressor (20), heat pump (30) and combustion source (40) and uses heated and compressed air as a motive fluid in an open Brayton cycle. In the process of the invention, the compressor pressurizes a... | 10/20/2009 |
| 7444817 | Optical micromotor, micropump using same and microvalve using same An optical micromotor having a rotor the rotation whereof can be controlled flexibly and freely through simple arrangement, and a micropump that uses this micromotor. The optical micromotor and the micropump have a rotor (15) that rotates about a central axis... | 11/04/2008 |
| 7436922 | Electricity and steam generation from a helium-cooled nuclear reactor Disclosed herein is a method comprising heating helium in a core of a nuclear reactor; extracting heat from the helium; superheating water to steam using the heat extracted from the helium; expanding the helium in a turbine; wherein the turbine is in operative commu... | 10/14/2008 |
| 7272932 | System and method of use of expansion engine to increase overall fuel efficiency A system of increasing overall fuel efficiency of a facility including a gas expansion engine for receiving a supply of pressurized gas of a first pressure and first temperature and outputting a tail gas of a second lower temperature and lower pressure. The expansio... | 09/25/2007 |
| 7200005 | Method and apparatus for generating electricity using recycled air from a computer server In one embodiment, the invention is a method and apparatus for recycling exhaust air expelled from a computer server (e.g., a unit including microprocessors such as a standard server or a mainframe). In one embodiment, at least one windmill (e.g., a standard windmil... | 04/03/2007 |
| 7150154 | Power station A compressed air energy storage power station comprises a first shafting (1) and a second shafting (2). A gas turbo group (11), an electrical machine (12) and a compressor (13) are arranged on the first shafting (1). Switcha... | 12/19/2006 |
| 7134270 | External combustion engine An external combustion engine comprising a body (8), at least one working chamber (18), combustion chamber (13), crankcase (21) and compression chamber (6), at least one working piston (20), compression piston (7) and... | 11/14/2006 |
| 7086231 | Thermal and compressed air storage system Combined thermal and compressed air storage systems are provided that utilize an exhaustless heater, such as a thermal storage unit, to provide power with enhanced efficiency. Compressed air is heated by the thermal storage unit prior to entering a turbine, which po... | 08/08/2006 |
| 7062914 | Heat engines and associated methods of producing mechanical energy and their application to vehicles A closed cycle gas turbine system (40) comprising system comprising a compressor (52) for producing compressed gas, a gas turbine (42) for receiving the compressed gas, a heat storage means (44) having a first heat transfer means and adap... | 06/20/2006 |
| 7036315 | Apparatus and method for detecting low charge of working fluid in a waste heat recovery system In a waste heat recovery system having a superheat controller, a reference superheat controller operating trajectory is established and compared with operational superheat controller trajectories from time to time and measuring the deviation therebetween to determin... | 05/02/2006 |
| 7028481 | High efficiency Brayton cycles using LNG A modified, closed-loop Brayton cycle power conversion system that uses liquefied natural gas as the cold heat sink media. When combined with a helium gas cooled nuclear reactor, achievable efficiency can approach 68–76% (as compared to 35% for conventional steam ... | 04/18/2006 |
| 7013639 | Heat differential power system Heat differential power systems and apparatus for powering liquid cooling systems and/or generating electrical power in a data processing system or a telecommunication system are presented. A number of embodiments are presented. In each embodiment a heat differentia... | 03/21/2006 |
| 7000394 | Rankine cycle device A Rankine cycle system is provided in which, with regard to a given relationship between the pressure (Pevp) and the temperature (Tevp) of a vapor that is taken into an expander (4) that includes a cylinder chamber in a first stage and a vane chamber in a sec... | 02/21/2006 |
| 6996989 | Process to recover energy from hot gas A process to recover energy from a gas having a temperature of above 650° C. and an absolute pressure of more than 1.7 bar and having non-solidified alkali containing compounds and particles by performing the following steps: (a) cooling the gas to a t... | 02/14/2006 |
| 6963802 | Method of coordinating and stabilizing the delivery of wind generated energy The invention relates to a method of coordinating and stabilizing the delivery of wind generated power, such as to a power grid, so as to avoid sudden surges and spikes, despite wind speed fluctuations and oscillations. The method preferably uses a plurality of wind... | 11/08/2005 |
| 6959549 | Micro-power unit A micro power unit comprises a Rankine cycle circuit powered by combustion of hydrocarbon fuel from tank (2). Combustion takes place on a combustion catalyst (6) in a chamber (5). The fluid circuit includes a boiler (10), turbine (11 | 11/01/2005 |
| 6946081 | Desalination system The invention provides methods and an apparatus for more efficiently and economically producing purified water from sea water or some other salty or brackish water source. The efficiency is derived from the co-location with a power plant or other thermal generating ... | 09/20/2005 |
| 6941754 | Heating appliance The heating appliance, and particularly a dchp system, comprising two burners (3, 17). A splitter valve (23) splits a stream of air (24) into two streams, one for each burner. Combustible fuel is mixed with the air. A controller controls the com... | 09/13/2005 |
| 6729136 | Liquid metal/liquid nitrogen power plant for powering a turbine or any use device A power plant for a use device wherein liquid nitrogen and a heated transfer fluid are alternately used to expand and contract a liquid metal like mercury to drive a piston, a crankshaft, and subsequent drive apparatus. A control device is timed with operation of th... | 05/04/2004 |
| 6666024 | Method and apparatus for generating energy using pressure from a large mass A fluid, for example, air, is subjected to a high pressure while in a high pressure inducing vessel (101). The high pressure is due to a large mass, such as the ocean. The fluid is then cooled and directed into a depressurized vessel (107), such as a pres... | 12/23/2003 |
| 6606860 | Energy conversion method and system with enhanced heat engine An energy conversion device for converting heat to mechanical energy. The apparatus includes a heat exchanger vessel absorbing heat from an ambient or energy-rich fluid and transferring heat to a working fluid within an interior chamber of the vessel cont... | 08/19/2003 |
| 6601390 | Method and apparatus for converting dissipated heat to work energy A method for enhancing natural convection and for converting lower temperature dissipated heat to other useful energy and apparatus therefor. Heat energy is transferred to a medium contained with a channel, and natural convection of the medium is utilized... | 08/05/2003 |
| 6523346 | Process for controlling the cooling air mass flow of a gas turbine set The invention gives a process for the control of the amount of cooling air of a gas turbine set (1, 2, 3). Suitable means (32, 33) are provided in the cooling system (26, 27) to enable the amount of cooling air to be varied. The control of this means take... | 02/25/2003 |
| 6491091 | Radiating fin assembly for thermal energy engine A radiating fin assembly for thermal energy engine comprises a plurality of spacer members each having a plurality of insertion holes, a plurality of radiating plates each sandwiched between two adjacent spacer members and each having a plurality of inser... | 12/10/2002 |
| 6486483 | Electrical energy production system An electrical energy production system, which includes an electrical energy production section, a multi-stage turbine section, and a mass spectrometer section is presented. The system is designed to produce electrical energy through a multi-stage turbine ... | 11/26/2002 |
| 6327858 | Auxiliary power unit using compressed air The invention concerns an auxiliary power unit using compressed air for energy and equipped with a motor alternator driving, or being driven by a motor compressor with compressed air which compresses air under high pressure in a high pressure storage tank... | 12/11/2001 |
| 6220033 | Universal thermochemical energy converter Disclosed are methods and apparatus for a thermochemical closed cycle employing a polyatomic, chemically active working fluid for converting heat energy into useful work.... | 04/24/2001 |
| 6178750 | Method and apparatus for converting thermal energy into work The invention relates to a method and an apparatus for the conversion of low-grade heat into mechanical energy, in particular electricity. To this end a working medium is heated in a closed circulation system causing the working medium to expand. The expa... | 01/30/2001 |
| 6161385 | Turbomachine and method of use A turbomachine, in particular a gas turbine, is in the traditional manner provided with air cooling of the components that are subject to a high thermal stress. The cooling system (21, 31, 41) is provided with elements through which another medium (25, 35... | 12/19/2000 |
| 6155051 | Method of heating natural gas in a city gate station A method and system are described for heating natural gas in a station, such as a City Gate station. Natural gas from the field is generally transported via supply line at high pressure to the various distribution networks necessary for delivering the gas... | 12/05/2000 |
| 6109035 | Motion control method for carnotising heat engines and transformers Incremental control of motion in the thermodynamic phase space of a heat engine, by modulating the piston speed to control the instantaneous rate of change of temperature relative to the instantaneous heat flow during each cycle. The modulation is indepen... | 08/29/2000 |
| 6085506 | Quiet external combustion lawn mower A lawn mower is powered by a quiet external combustion engine which is based on an Ericcson cycle which has been modified for more efficient combustion and higher temperature from the regenerative heat exchanger. Air is compressed in a compressor, then re... | 07/11/2000 |
| 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 |
| 5996350 | Method and apparatus for the superheating of steam An apparatus and a method for the superheating of steam is used, in particular, for converting saturated steam into hot steam in the field of nuclear energy generation. As a result of at least partial conversion of pressure energy of the steam into kineti... | 12/07/1999 |
| 5937652 | Process for coal or biomass fuel gasification by carbon dioxide extracted from a boiler flue gas stream Carbon dioxide; from a boiler flue gas stream is separated, recycled and utilized for gasification of coal or biomass to increase fuel utilization and to decrease the carbon dioxide emissions into the atmosphere.... | 08/17/1999 |
| 5873250 | Non-polluting open Brayton cycle automotive power unit The present invention includes a open-Brayton-cycle automotive power-generation unit adapted to be energized by stored thermal energy. Thermal energy, absorbed from hot thermal-energy-storage material present in a working fluid heating vessel, heats a wor... | 02/23/1999 |
| 5863513 | Treatment of gas An elevated pressure nitrogen stream from an air separation plant is used to provide cooling for one or more sulphur condensers in an oxygen-enhanced Claus process for recovering sulphur.... | 01/26/1999 |
