Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7353647 | Methods and apparatus for assembling gas turbine engines A method facilitates assembling a gas turbine engine including a compressor and a rotor assembly coupled in axial flow communication downstream from the compressor. The method comprises coupling a bypass system in flow communication with the compressor to channel a ... | 04/08/2008 |
| 7280950 | Locomotive diesel engine turbocharger and turbine stage constructed with turbine blade vibration suppression methodology A method for fabrication of a locomotive diesel engine turbocharger turbine stage so as to avoid harmonic vibration in the turbine blades when the engine is operated at pre-selected throttle settings. Upon determining throttle settings for the engine and modeling of... | 10/09/2007 |
| 7270743 | Products produced form rapid thermal processing of heavy hydrocarbon feedstocks The present invention is directed to the upgrading of heavy hydrocarbon feedstock that utilizes a short residence pyrolytic reactor operating under conditions that cracks and chemically upgrades the feedstock. The process of the present invention provides for the pr... | 09/18/2007 |
| 7231770 | Onboard supplemental power system at varying high altitudes Systems and methods for supplementing a power system to achieve consistent operation at varying altitudes are disclosed herein. A hybrid power system comprising a single power source driving multiple generators may implement a power recovery turbine to drive a super... | 06/19/2007 |
| 7155897 | Combustion temperature high speed detection device A combustion temperature high speed detection device is provided with a phase lead processing portion, thereby canceling out a detection lag of a temperature detector, and detecting the combustion gas temperature of a combustor at a high speed. The combustion temper... | 01/02/2007 |
| 7134285 | Adiabatic power generating system An adiabatic power generation method and apparatus includes at least one combusting device to combust any suitable fuel and an oxygen-containing gas to produce hot high pressure combustion gases. Also includes modified present art combustors, wind and solar energy s... | 11/14/2006 |
| 7136738 | Fuel control system for gas turbine engines Fuel control systems for use with a gas turbine engines which accounts for real-time thermodynamic engine effects when attempting to match or track the NDOTActual rate to the NDOTDemand rate. The fuel control system includes a mechanism for mea... | 11/14/2006 |
| 7111462 | Onboard supplemental power system at varying high altitudes Systems and methods for supplementing a power system to achieve consistent operation at varying altitudes are disclosed herein. A hybrid power system comprising a single power source driving multiple generators may implement a power recovery turbine to drive a super... | 09/26/2006 |
| 7096657 | Gas turbine engine electromechanical variable inlet guide vane actuation system An electromechanical inlet guide vane actuation system includes one or more electric motor driven actuators that are used to appropriately position the inlet guide vanes in a gas turbine engine. The actuation system includes a control circuit that supplies guide van... | 08/29/2006 |
| 7089744 | Onboard supplemental power system at varying high altitudes Systems and methods for supplementing a power system to achieve consistent operation at varying altitudes are disclosed herein. A hybrid power system comprising a single power source driving multiple generators may implement a power recovery turbine to drive a super... | 08/15/2006 |
| 7069728 | Multi-position BOV actuator A multi-position pressurized fluid actuator is mounted for movement in a casing. The actuator includes at least one selectively openable opening at a location corresponding to an intermediate position through which pressurized fluid can be selectively bled from the ... | 07/04/2006 |
| 7003940 | System for control and regulation of the flame temperature for single-shaft gas turbines In order to limit the flame temperature peaks following sudden load variations, corresponding control is planned of the position of the blades (13) of the distributor with variable geometry, of a single-shaft gas turbine (18); in particular, the contro... | 02/28/2006 |
| 6955052 | Thermal gas compression engine A power generation method and apparatus includes a plurality of gas reactors that combust fuel and an oxygen-containing gas under substantially adiabatic conditions such that hot high pressure combustion gases flow alternately and substantially continuously from eac... | 10/18/2005 |
| 6945062 | Heat pump water heating system including a compressor having a variable clearance volume A heat pump water heater system includes a compressor that has a variable clearance volume that can be selectively controlled to control the mass flow rate of refrigerant from the compressor. Under higher ambient air temperature conditions, the variable volume is in... | 09/20/2005 |
| 6938404 | Supercharged open cycle gas turbine engine The present invention provides a supercharged open cycle gas turbine engine comprising a core engine for generating shaft power output, a supercharger for increasing the pressure of intake air of the core engine, said supercharger includes a rotary ram-in compressor... | 09/06/2005 |
| 6865891 | Gas turbine engine A gas turbine engine (10) comprises a first compressor (16), a combustor (22) and a first turbine (24) arranged in flow series. The first turbine (24) is arranged to drive the first compressor (16). The first compressor (... | 03/15/2005 |
| 6324828 | Gas turbine engine and a method of controlling a gas turbine engine A gas turbine engine comprises a centrifugal compressor (4), an air diffuser (8), a heat exchanger (10), combustion apparatus (12), and first and second turbines (14,18). The combustion chamber assembly (22) comprises a primary, a secondary and a tertiary... | 12/04/2001 |
| 6089010 | System for compensating for a pressure loss in the cooling-air ducting in a gas turbine plant A structural part of a gas turbine plant is cooled by branching off a partial mass air stream, after being compressed by a compressor of the gas turbine plant, from a main mass air stream. The cooling partial mass air stream is ducted in a closed duct to ... | 07/18/2000 |
| 5960624 | Process for regulating gas pressures of catalyst regenerator expansion turbines A process for regulating gas pressures of a regenerator with a gas expansion turbine in a flue gas line with a generator, wherein a process regulator opens the inlet valves of a gas expansion turbine and/or the bypass valves or throttles the bypass valves... | 10/05/1999 |
| 5584182 | Combustion chamber with premixing burner and jet propellent exhaust gas recirculation In the combustion chamber of a gas turbine, at least one premixing burner (110) is arranged in a dome (51) communicating with a plenum (50). Said premixing burner (110) is fastened on the outlet side to a front plate (52) limiting the combustion space (58... | 12/17/1996 |
| 5457952 | Air flow control system in PFBC plants Air flow is controlled in a PFBC plant comprising a combustor and a pressure vessel, a two-shaft gas turbine consisting of a low-pressure compressor LC and a low-pressure turbine LT interconnected by a shaft and a high-pressure compressor HC and a high-pr... | 10/17/1995 |
| 5457633 | Apparatus for limiting horsepower output of an engine and method of operating same A horsepower limiting engine control limits the maximum engine horsepower output during operating conditions that might result in torque outputs that are greater than the transmission component ratings. The control includes an electronic controller connec... | 10/10/1995 |
| 5426932 | Fluidized bed combined cycle power generating plant with method to decrease plant response time to changing output demand A combined cycle power generating plant has a fluidized bed furnace and a heat exchanger disposed therein, a steam turbine which is driven by steam generated in the heat exchanger and a gas turbine which is driven by combustion gas generated in the fluidi... | 06/27/1995 |
| 5309707 | Control methods and valve arrangement for start-up and shutdown of pressurized combustion and gasification systems integrated with a gas turbine A power plant having a system for converting coal to power in a gas turbine comprises a coal fed pressurized circulating bed for converting coal to pressurized gases, a gas turbine having a compressor for pressurizing air for the pressurized circulating b... | 05/10/1994 |
| 5193337 | Method for operating gas turbine unit for combined production of electricity and heat Gas turbine unit comprising a high pressure turbine (10) driving a high pressure compressor (11), and a low pressure turbine (13) driving a low pressure compressor (14) and a generator (12), a combustion chamber supplying gas to the compressors, and a rec... | 03/16/1993 |
| 4909028 | Pressure relief device The invention relates to a pressure-relief device in a PFBC power plant with a combustor (12) enclosed in a pressure vessel (10). The device is intended to limit the pressure difference between the combustor (12) and the surrounding space (22) in the pres... | 03/20/1990 |
| 4864816 | Regulation system for double-shaft gas turbines A regulating system for regulating a double-shaft gas turbine, wherein simultaneously: the fuel feed electrovalve is governed by a signal proportional to the difference between the number of revolutions per minute of the power turbine and a reference valu... | 09/12/1989 |
| 4856272 | Method for maintaining blade tip clearance A method for periodically restoring the blade tip to annular seal clearance in a gas turbine engine (10) includes incrementing (42a, 42b) the flow of external cooling air responsive only to an accumulated engine use parameter (58).... | 08/15/1989 |
| 4838209 | Energy plant with heat exchanger in a blow-off device for hot gases A PFBC power plant, with a vessel containing hot gas considerably exceeding the atmospheric pressure and a blow-off device for rapidly emptying a container containing the hot gas. The blow-off device comprises a heat exchanger which is located between the... | 06/13/1989 |
| 4821506 | Radial turbine with variable axial nozzle Thermal degradation of variable nozzle components in a gas turbine power plant is minimized by a construction including a radial outflow compressor 16 on a shaft 10 with a radial inflow turbine 18, combustion gas delivery path 78 which is generally concen... | 04/18/1989 |
| 4813226 | Demand control of variable geometry gas turbine power plant In a gas turbine power plant system having an engine of the variable geometry type, the variable geometry is controlled in response to an input demand speed signal rather than a signal representing actual engine speed. The geometry which may be varied may... | 03/21/1989 |
| 4730977 | Thrust bearing loading arrangement for gas turbine engines A plurality of openings are provided in a stationary wall of a gas turbine engine aft of the compressor discharge to admit compressor discharge air into a sealed cavity formed between the stationary wall and the rotor of the gas turbine engine. A valve, b... | 03/15/1988 |
| 4688663 | Motor and brake control for a multi-stage turbine engine A servo mechanical control for efficiently bringing a rotating turbine wheel of a turbine engine having a multi-stage stator assembly to a non-rotating condition and for maintaining the turbine wheel in a non-rotating condition. The servo mechanical contr... | 08/25/1987 |
| 4599044 | Electronic feedback area control system for TVC gas generator In a thrust vector control system of the type in which a solid-propellant s generator powers a turbine-driven pump for driving hydraulic actuators for controlling the direction of thrust, the improvement being a feed back control system in which a variabl... | 07/08/1986 |
| 4591314 | Hydraulic power supply system utilizing a solid propellant gas generator A hydraulic power supply system utilizing a turbine-driven pump in a hydraulic circuit and a solid propellant gas generator providing gas for driving the turbine. A gas pressure relief valve is operable to maintain the gas generator at constant pressure a... | 05/27/1986 |
| 4545198 | Gas turbine engine control system An apparatus for controlling a gas turbine engine. A control device is provided for controlling the energy conversion function of the engine. Adjustments of the control device are obtained by comparing an actual value of a condition of the engine with a d... | 10/08/1985 |
| 4539810 | Apparatus for controlling a gas turbine engine A control apparatus for a gas turbine engine comprises an accelerating condition detecting mechanism and an operating speed control mechanism. The accelerating condition detecting mechanism detects the degree of acceleration in the engine. The operating s... | 09/10/1985 |
| 4498285 | Gas turbine plant with a fluidized bed combustion chamber A gas turbine plant includes a compressor and a turbine and therebetween a pressurized combustion chamber with a fluidized bed arranged within a pressurized container. The plant is also provided with valves for shutting off the compressor and the turbine ... | 02/12/1985 |
| 4498286 | Gas turbine plant with a fluidized bed combustion chamber A gas turbine plant comprises a compressor, a turbine and, therebetween, a pressurized container containing a combustion chamber with a fluidized bed. The plant further comprises a valve means for shutting off the compressor and the turbine, respectively,... | 02/12/1985 |
| 4449358 | Method and apparatus for promoting a surge condition in a gas turbine A surge condition in a stalled gas turbine engine is promoted by modulating a time-varying component of an operating parameter of the gas turbine engine, such as the fuel flow to the combustor plenum of the engine, substantially in phase with a time-varyi... | 05/22/1984 |
