Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 7802430 | Condensers efficiency through novel PCS technology This invention improves and integrates a pressure control device (Pressure control device or PCD) into a new and efficient air removal system of a power plant condenser to dramatically improve condenser efficiency by reducing back pressure. The major improvements in... | 09/28/2010 |
| 7784279 | Steam valve and steam turbine plant A steam valve has: a valve casing; a valve seat; a main valve body slidable to abut to or to detach from the valve seat; a bypass valve body slidably disposed in the main valve body; a cylindrical flow guide surrounding the annular wall of the bypass valve body; and... | 08/31/2010 |
| 7353653 | Hybrid power system for continuous reliable power at locations including remote locations The present inventive subject matter is drawn to a hybrid ultra reliable power generating system for supplying continuous reliable power at remote locations comprising: a primary power unit producing electric power that is supplied to a load. Also a secondary power ... | 04/08/2008 |
| 7343744 | Method and system for controlling a reheat turbine-generator A method for controlling a turbine-generator including: detecting a power-load unbalance between a turbine and a generator; measuring the duration of a power-load unbalance; measuring the rate of loss of an electrical load; and regulating steam flow through the turb... | 03/18/2008 |
| 7340897 | Method of and apparatus for producing power from a heat source A method for producing power from a heat source comprises the steps of: heating an intermediate fluid with heat from the heat source and producing a vaporized intermediate fluid in an intermediate fluid heater/vaporizer. Heat from the vaporized intermediate fluid va... | 03/11/2008 |
| 7331181 | Reheating steam temperature control A heat control system of reheating steam of a power plant, in which method the reheating steam (S3) is superheated in a reheater in a first reheating stage and a second reheating stage. The steam (S6) superheated in the first reheating stage is directe... | 02/19/2008 |
| 7322270 | Safety circuit for media-operated consumers and process for its operation A safety circuit for media-operated consumers, such as steam turbines or gas turbines, includes at least one first solenoid valve (1.1) which acts on a fluid circuit. An actuating device (9) can be connected to the fluid circuit, and acts at the same t... | 01/29/2008 |
| 7314356 | Fluid machine An outer end of a seal element for a fixed scroll is extended to a position close to an end of an inside spiral wall of the fixed scroll, and an outwardly extended portion is formed at an outer periphery of a disc-shaped base plate of a movable scroll, so that a bot... | 01/01/2008 |
| 7310948 | De-icer for suspended overhead lines A self-contained, line-mounted, automatic device for reducing and preventing ice deposits on a suspended line, such as a suspended overhead power line. ... | 12/25/2007 |
| 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 |
| 7174715 | Hot to cold steam transformer for turbine systems A steam transformer (200) receives steam through a steam inlet (203), and the steam is mixed in a mixing zone (231) with water entering through a water inlet (205). Steam cooled by contact with the water exits the steam transformer throug... | 02/13/2007 |
| 7150299 | Assembly and method for containing, receiving and storing fluids and for dispensing gas from a fluid control and gas delivery assembly having an integrated fluid flow restrictor A fluid control and gas delivery assembly and method for containing, receiving and storing hazardous fluids and for dispensing gas comprising a container, a fluid fill path, a gas dispensing path, a first shut-off valve, a pressure reducer, a fluid flow restrictor, ... | 12/19/2006 |
| 7147427 | Utilization of spillover steam from a high pressure steam turbine as sealing steam A steam-driven turbine system for a power plant in which a high pressure and a low pressure turbine are coupled to a common shaft to drive an external generator. Process steam supply is used as gland sealing steam for the low pressure turbine and turbine driven stea... | 12/12/2006 |
| 7127895 | Systems and methods for providing backup energy to a load Backup energy systems utilizing compressed air storage (CAS) systems and bridging energy systems to supply backup power to a load are provided. During a power failure, the bridging energy system provides backup power to the load at least until the CAS system begins ... | 10/31/2006 |
| 7121906 | Method and apparatus for decreasing marine vessel power plant exhaust temperature According to the present invention, a method and apparatus for generating power aboard a marine vessel is provided. The method comprises the steps of: (a) providing a Rankine Cycle device that includes at least one of each of an evaporator, a turbo-generator that in... | 10/17/2006 |
| 7104061 | Fluid machine A fluid machine for a waste heat collecting system for an internal combustion engine has an object to make most use of the collected waste heat and an operation of a compressor, an alternator or the like by a rotational driving force from an expansion device functio... | 09/12/2006 |
| 7090476 | Rotary fluid machine A rotary fluid machine is provided in which a rotating shaft (113) fixed to a rotor (41) is rotatably supported on a fixed shaft (102) fixed to a casing (11), sliding surfaces of the fixed shaft (102) and the rotating shaft (113... | 08/15/2006 |
| 7067933 | Waste oil electrical generation system An improved electrical generation system utilizing environmentally hazardous waste oils as a combustible fuel. More particularly, a system to generate electrical power using a Stirling-cycle engine driving an electrical generator. The Stirling-cycle engine is powere... | 06/27/2006 |
| 7059132 | Steam generator feedwater control system for power plant In the control of feedwater to the steam generator in a power plant comprising one steam generator and a plurality of turbine plants, the water level in the steam generator and the flow rate balance between the steam flow rate and the feedwater flow rate of each tur... | 06/13/2006 |
| 7040095 | Method and apparatus for controlling the final feedwater temperature of a regenerative rankine cycle This invention relates to a method and apparatus for controlling the final feedwater temperature associated with a regenerative Rankine cycle, said cycle commonly used in thermal systems such as conventional power plants. This invention involves the placement of a n... | 05/09/2006 |
| 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 |
| 7032384 | Steam turbine plant Steam turbine plant includes a steam generator, a plurality of low pressure turbines being driven by steam from the steam generator, a plurality of steam condensers to condense the steam from the low pressure turbines into condensed water and a feedwater line which ... | 04/25/2006 |
| 7028480 | Steam temperature control system, method of controlling steam temperature and power plant using the same A steam temperature control system for a power plant for controlling a temperature of steam flowing through steam pipes connected to a heat exchanger to a target temperature by spraying water by means of a spray valve of an attemperator, having a target temperature ... | 04/18/2006 |
| 7028479 | Method and device for operating a steam turbine comprising several no-load or light-load phases A method and a device are for operating a steam turbine in which includes several no-load or light-load phases. All phases are supplied with steam in order to ensure good preheating. The supply of a phase is selected in such a way that the phase produces the least p... | 04/18/2006 |
| 7019415 | Electrical power generation system and method for mitigating corona discharge A power generation system including a housing defining a cavity and having an inlet for receiving a fluid that is used to cool and pressurize the cavity and an outlet for removing the fluid from the cavity. The system also may include a rotor having a first end posi... | 03/28/2006 |
| 7013916 | Sub-atmospheric gas delivery method and apparatus An apparatus for containing and delivering hazardous gases at sub-atmospheric pressure from a pressurized container is provided which includes a valve body in sealed communication with an outlet orifice of the pressurized container. The outlet orifice of the pressur... | 03/21/2006 |
| 7003956 | Steam turbine, steam turbine plant and method of operating a steam turbine in a steam turbine plant A steam turbine and steam turbine plant that can utilize a relatively higher reheated steam, such as about 1300 degrees Fahrenheit or higher, is provided. A steam turbine plant includes a steam generator generating high pressure steam and reheated steam, a high pres... | 02/28/2006 |
| 6981378 | Method of and apparatus for producing uninterruptible power Uninterruptible power is supplied to a load connected to a power line by connecting the power line to a rotatable member that includes a Rankine cycle turbine coupled to a device that operates as a motor when line power is operative thereby rotating the member at a ... | 01/03/2006 |
| 6962051 | Control of flow through a vapor generator In a Rankine cycle system wherein a vapor generator receives heat from exhaust gases, provision is made to avoid overheating of the refrigerant during ORC system shut down while at the same time preventing condensation of those gases within the vapor generator when ... | 11/08/2005 |
| 6952925 | Optimizing inlet air for gas turbines Air intake temperature in a gas turbine is regulated by a heat exchange fluid having a low viscosity at low temperatures. The circulated heat transfer fluid preferably comprises an alkali metal formate, most preferably potassium formate. The potassium formate may be... | 10/11/2005 |
| 6951105 | Electro-water reactor steam powered electric generator system An electro-water reactor steam powered electric generator system includes a steam boiler having water and steam chambers, a water intake pipe and a plurality of steam delivery pipes. An electric resistance heater is mounted under and around the boiler having power l... | 10/04/2005 |
| 6948316 | Rankine cycle system A Rankine cycle system having a working medium circulation circuit (110) that includes an evaporator (112), an expander (113), a condenser (114), and a feed pump (115) is provided in which a mixture of oil for lubricating the expan... | 09/27/2005 |
| 6938421 | Indirectly heated gas turbine control system A system for the control of an indirectly heated gas turbine comprising a primary system of controlling the temperature of heated compressed gas entering the expander, and an independent secondary system which includes a safety valve for instantaneous release of hea... | 09/06/2005 |
| 6918252 | Method of and apparatus for cooling a seal for machinery A method is provided for cooling a seal located in a wall of a chamber and through which a movable shaft passes, the seal being heated by hot pressurized vapor that leaks through the seal into the chamber and internal friction. The method comprises the steps of: pro... | 07/19/2005 |
| 6915635 | Method and device for operating a steam power plant, in particular in the part-load range It is proposed that, during the operation of a steam turbine of a steam power plant, the internal pressure and also the internal temperature and, in the region outside it, the external temperature be determined in at least one steam-carrying component. As a result o... | 07/12/2005 |
| 6898936 | Compression stripping of flue gas with energy recovery A method of remediating and recovering energy from combustion products from a fossil fuel power plant having at least one fossil fuel combustion chamber, at least one compressor, at least one turbine, at least one heat exchanger and a source of oxygen. Combustion pr... | 05/31/2005 |
| 6898935 | System and method of cooling steam turbines A system and method of cooling a steam turbine having internal moving components to a predetermined temperature by controlling a flow of nitrogen through the turbine, thus decreasing the downtime associated with maintaining the turbine. This provides a more efficien... | 05/31/2005 |
| 6883328 | Hybrid power system for continuous reliable power at remote locations The present inventive subject matter is thus drawn to a hybrid ultra reliable power generating system for supplying continuous reliable power at remote locations comprising: a primary power unit producing electric power that is supplied to a load. And a secondary po... | 04/26/2005 |
| 6832480 | Power generation system utilizing oxidized gases from waste combustion An improved system and method for using a portion of an oxidized process gas stream resulting from the destruction or abatement of industrially generated pollutants such as Volatile Organic Compounds (VOCs) and Hazardous Air Pollutants (HAPs) in a thermal oxidizer. ... | 12/21/2004 |
| 6829894 | Closed circuit steam engine The invention concerns a device to generate mechanical work with a steam engine that works with a closed circuit and that has a feed water tank, a feed pump, an evaporator to generate steam, the steam engine, and a condenser. The invention is based on the problem of... | 12/14/2004 |
