Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8171733 | Systems and methods involving combined cycle plants A system comprises a first heat recovery steam generator (HRSG) operative to receive steam from a source of steam and output water to the source of steam, a second HRSG operative to receive steam from the source of steam and output water to the source of steam, a fi... | 05/08/2012 |
| 8141362 | Closed cycle heat transfer device and method A closed cycle heat transfer device comprising a boiler (10) and a condenser (13), the condenser being used to recover useful heat by latent heat evaporation. A circuit defined by the boiler (10), condenser (13) and ducts (12, 15) ... | 03/27/2012 |
| 7356993 | Method of converting energy The invention provides a method of converting heat energy to a more usable form using a multi-component working fluid mixture that contains ammonia and water. The working fluid is operated in a thermodynamic cycle that includes liquid compression (30), vapori... | 04/15/2008 |
| 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 |
| 7325400 | Rankine cycle and steam power plant utilizing the same A steam power plant (100) implementing an improved Rankine cycle (55) wherein steam is injected (82, 96) directly into the energy addition portion of the plant, and the resulting two-phase flow is pressurized by multiphase pumps (88, 98).... | 02/05/2008 |
| 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 |
| 7305829 | Method and apparatus for acquiring heat from multiple heat sources The present invention relates to systems and methods for implementing a closed loop thermodynamic cycle utilizing a multi-component working fluid to acquire heat from two or more external heat source streams in an efficient manner utilizing countercurrent exchange. ... | 12/11/2007 |
| 7299643 | Method for recovering LPG boil off gas using LNG as a heat transfer medium A process for condensing a C3-C4 hydrocarbon vapor which comprises contacting the C3-C4 hydrocarbon vapor with a heat exchanger surface which is cooled by contact with LNG and recovering a liquefied C3-C4 | 11/27/2007 |
| 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 |
| 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 |
| 7267698 | Method for producing hydrogen The invention is a method for producing hydrogen using a generator, heating the vessel that is part of the generator, loading waste comprising steel into the heated vessel, melting the loaded waste to a molten state using a non-transferred torch to cut and melt the ... | 09/11/2007 |
| 7264654 | Process and system for the condensation of multi-component working fluids A process and system for condensing a multi-component fluid is disclosed, where the process and system are designed to provide a substantial increase in a heat transfer coefficient during condensation of multi-component fluids resulting in a drastic reduction in siz... | 09/04/2007 |
| 7260934 | External combustion engine An organic Rankine engine used to power a vehicle is provided with a quick-start system of pumps, electric heaters or pistons to generate a pressure differential across the motor, prior to the engine reaching operating conditions. ... | 08/28/2007 |
| 7243510 | Reduced carbon dioxide emission system and method for providing power for refrigerant compression and electrical power for a light hydrocarbon gas liquefaction process A reduced carbon dioxide emission system and method for providing power for refrigerant compression and shared electrical power for a light hydrocarbon gas liquefaction process. ... | 07/17/2007 |
| 7211906 | Rankine—microturbine for generating electricity An electrical output power generation system is provided. A gas turbine engine rotor spool with at least one alternator rotor and steam turbine rotor are integrated and within a engine body having a combustor or external heat source having fluid communication with t... | 05/01/2007 |
| 7178348 | Refrigeration power plant The invention relates to a power station comprising at least one steam turbine and/or gas turbine which is connected to at least one absorption type refrigeration machine in order to produce refrigeration, whereby the absorption type refrigeration machine is operate... | 02/20/2007 |
| 7127954 | Method and device for measuring the flow rate of a fluid A method for measuring the flow rate of a fluid flowing in a conduit includes separating the fluid into two portions then flowing into two branches (20, 22). Both portions are then recombined in an outlet manifold (14). A difference is created between ... | 10/31/2006 |
| 7096665 | Cascading closed loop cycle power generation Cascading Closed Loop Cycle (CCLC) and Super Cascading Closed Loop Cycle (Super-CCLC) systems are described for recovering power in the form of mechanical or electrical energy from the waste heat of a steam turbine system. The waste heat from the boiler and steam co... | 08/29/2006 |
| 7065967 | Process and apparatus for boiling and vaporizing multi-component fluids A new boiler or heat transfer apparatus is disclosed for use with multi-component working fluids which includes a vapor removal apparatus designed to maintain a substantial compositional identity between the boiling liquid and its vapor along a length of the apparat... | 06/27/2006 |
| 7062911 | Natural thermo-carrier heat release system A natural thermo-carrier heat release system that provides open or closed temperature regulation on an object with temperature delta to receive the heat release based on the work principle of descending of a flow at lower temperature and ascending at higher temperat... | 06/20/2006 |
| 7055325 | Process and apparatus for generating power, producing fertilizer, and sequestering, carbon dioxide using renewable biomass A process and apparatus are described for generating electrical energy using grains or other renewable biomass as the fuel, and for producing fertilizer to grow subsequent crops. In the process, a biomass material is incinerated in a firebox of a boiler to power a f... | 06/06/2006 |
| 7036314 | Method for treating and distributing water generated in a self-contained water using unit Water for use in a self-contained water using unit, such as an aircraft, watercraft, ground conveyance, or stationary unit, is treated so that water of different qualities can be distributed to different use locations in the self-contained unit. The treatment is per... | 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 |
| 7017347 | Method and system for converting waste into electricity A system and method for converting waste into electricity. Hydrogen gas is produced from waste burned in a vessel including at least one plasma arc torch. Steam is introduced into the vessel to provide a source for the hydrogen gas. The hydrogen gas is then collecte... | 03/28/2006 |
| 7010919 | Method and installation for steam production and air distillation The invention concerns a method for driving at least a compression machine (7, 8) of an air distillation unit (3) which supplies oxygen and/or nitrogen and/or argon to an industrial plant (1) producing water vapour. In normal running conditions,... | 03/14/2006 |
| 7007473 | Temperature control device of evaporator Evaporator temperature control means (U) that, in order to make the temperature of steam generated by heating water using exhaust gas of an engine coincide with a target temperature, controls the amount of water supplied to the evaporator based on the flow rate of t... | 03/07/2006 |
| 7000401 | Method for operating a steam power plant and steam power plant for carrying out said method The invention relates to a method for operating a steam power plant comprising a steam generator and a combustion chamber associated therewith, wherein pre-warmed combustion air is guided therein in addition to a fossil fuel. According to the invention, said plant c... | 02/21/2006 |
| 6986251 | Organic rankine cycle system for use with a reciprocating engine In a waste heat recovery system wherein an organic rankine cycle system uses waste heat from the fluids of a reciprocating engine, provision is made to continue operation of the engine even during periods when the organic rankine cycle system is inoperative, by prov... | 01/17/2006 |
| 6973789 | Method of and apparatus for producing power in remote locations A system for producing power at remote locations comprises: a closed cycle vapor turbine unit having an evaporator containing liquid working fluid, a turbine receiving vapor of the evaporated working fluid for producing power by way of an electrical generator couple... | 12/13/2005 |
| 6960839 | 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... | 11/01/2005 |
| 6952924 | Rankine cycle apparatus Rankine cycle apparatus, having closed working medium circulation circuitry, includes a collection mechanism for collecting a working medium leaked or discharged out of the circulation circuitry. The working medium collected via the collection mechanism is stored in... | 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 |
| 6948315 | Method and apparatus for a waste heat recycling thermal power plant This invention, a waste heat recycling thermal power plant (1000), extracts heat from the environment, and concentrates this heat to produce a cfc super-ambient temperature heat source (1330) having an elevated temperature sufficient to supply a useabl... | 09/27/2005 |
| 6941757 | Power cycle and system for utilizing moderate and low temperature heat sources A new thermodynamic cycle is disclosed for converting energy from a low temperature stream, external source into useable energy using a working fluid comprising of a mixture of a low boiling component and a higher boiling component and including a higher pressure ci... | 09/13/2005 |
| 6923000 | Dual pressure geothermal system A new thermodynamic cycle is disclosed for converting energy from a low temperature stream from an external source into useable energy using a working fluid comprising of a mixture of a low boiling component and a higher boiling component and including a higher pres... | 08/02/2005 |
| 6913076 | High temperature heat pump A high temperature heat pump comprising a low temperature heat exchanger to produce vapor of a first fluid from heat transferred from a second fluid to a mixture of liquid and vapor of the first fluid; a compressor to increase the pressure and temperature of the pro... | 07/05/2005 |
| 6910334 | Power cycle and system for utilizing moderate and low temperature heat sources A new thermodynamic cycle is disclosed for converting energy from a low temperature stream, external source into useable energy using a working fluid comprising of a mixture of a low boiling component and a higher boiling component and including a higher pressure ci... | 06/28/2005 |
| 6820421 | Low temperature geothermal system A new thermodynamic cycle is disclosed for converting energy from a low temperature stream from an external source into useable energy using a working fluid comprising of a mixture of a low boiling component and a high boiling component. The cycle is designed to imp... | 11/23/2004 |
| 6742337 | Waste heat recovery system A waste heat recovery system comprising ducting to which hot gas is communicated, means to supply lower temperature diluent gas to the ducting, to mix with the hot gas, and produce a reduced temperature mixed gas stream, a vaporizer in communication with the ducting... | 06/01/2004 |
| 6691514 | Method and apparatus for generating power A method and apparatus for generating power is provided. Nitrogen gas is compressed by a compressor so as to provide liquid nitrogen of a predetermined temperature. A gaseous refrigerant is passed through the compressed nitrogen so as to condense the refr... | 02/17/2004 |
