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 |
| 6929447 | Steam line closing valve and steam turbine plant comprising such a steam line closing valve The invention relates to a steam line closing valve for closing a steam line, especially in a steam turbine plant between a first partial turbine and at least one second partial turbine that is operated at a lower pressure than the first partial turbine. According t... | 08/16/2005 |
| 6647727 | Method for controlling a low-pressure bypass system In a method for controlling a steam turbine installation having a reheater (7) arranged between high-pressure turbine (2) and medium-pressure turbine (3) or low-pressure turbine (4), a low-pressure bypass (18) with a low-pressure bypass valve (19) also be... | 11/18/2003 |
| 6094914 | Method and device for cooling a low-pressure turbine section A method and a device for cooling a low-pressure turbine section of a steam turbine connected in a water/steam circuit, include feeding a coolant flow through parts of the low-pressure turbine section, in particular during idling operation. Condensate ble... | 08/01/2000 |
| 5490386 | Method for cooling a low pressure steam turbine operating in the ventilation mode A method is provided for cooling a low pressure steam turbine operating in a ventilation mode. The low pressure steam turbine has a closable inlet through which steam can be delivered when operating in a power generation mode and which is blocked off when... | 02/13/1996 |
| 5483797 | Method of and apparatus for controlling the operation of a valve that regulates the flow of geothermal fluid The present invention provides a method of and apparatus for controlling the operation of a valve that regulates the flow of geothermal fluid that comprises geothermal brine and steam flowing through the valve to a geothermal plant. The method includes de... | 01/16/1996 |
| 5464318 | Control system for extraction and injection of steam from and into a turbine The present invention relates to a control system for controlling injection and extraction of steam in a steam turbine (1), the same valves (5,6) being used both for injection of steam to the turbine (1) and for extraction of steam from the turbine (1) . ... | 11/07/1995 |
| 4576008 | Turbine protection system for bypass operation A steam turbine generator power plant which includes a main steam bypass path and an auxiliary steam bypass path which bypasses the high pressure turbine. The auxiliary bypass path includes a steam jet compressor which functions to pump up the pressure at... | 03/18/1986 |
| 4556956 | Adjustable gain controller for valve position control loop and method for reducing jitter An adjustable gain controller for a steam turbine valve position control loop includes an electronic operator, a proportional controller, a derivative controller and an integral controller. A steam flow condition error signal is amplified by the reciproca... | 12/03/1985 |
| 4537032 | Parallel-stage modular Rankine cycle turbine with improved control The turbine of a Rankine cycle power plant has a plurality of modular units constituting a turbine to which vaporized working fluid from a boiler is supplied in parallel through respective adjustable throttle valves. Exhaust vapor is removed from the modu... | 08/27/1985 |
| 4516403 | Waste heat recovery system for an internal combustion engine A feed water supply pump and a second control valve are provided in a water supply line system and a first control valve is provided at a second steam line. Further, a third control valve is provided at a hot water supply line. In this manner, the termina... | 05/14/1985 |
| 4478783 | Nuclear power plant feedwater controller design A system for controlling the feedwater system in a nuclear power plant is disclosed. The system utilizes a logic calculations subsystem (50) which selects the operational mode of the system to be monitored from a plurality of operational modes. A disturba... | 10/23/1984 |
| 4458493 | Closed Rankine-cycle power plant utilizing organic working fluid A closed Rankine-cycle power plant (10) has a boiler (24) for vaporizing an organic working fluid and a first nozzle box (58) for receiving vaporized working fluid from the boiler (24) and for furnishing the fluid to a set of axial flow turbine blades (30... | 07/10/1984 |
| 4448026 | Turbine high pressure bypass pressure control system A steam turbine system which includes a steam generator and a steam bypass path for bypassing steam around the turbine. The outlet throttle pressure of the steam generator is controlled by controlling admission of steam into the bypass path by means of a ... | 05/15/1984 |
| 4403476 | Method for operating a steam turbine with an overload valve A method is disclosed for operating a steam turbine using turbine reserve capacity for attaining operation at elevated loads. In a preferred form of the invention, a bypass overload valve is provided in parallel with the steam admission control valves but... | 09/13/1983 |
| 4398393 | Steam turbine control apparatus Control apparatus is disclosed for limiting overspeed in a steam turbine following a sudden loss in load. The apparatus includes at least one valve disposed in the steam conduit interconnecting higher and lower pressure sections of the turbine and an actu... | 08/16/1983 |
| 4357803 | Control system for bypass steam turbines A control system for a steam turbine operated with a steam bypass system. In the control system, bypass valve control is according to setpoints generated as a function of a combined flow reference (CFR) signal. The CFR signal is representative of boiler o... | 11/09/1982 |
| 4353216 | Forward-reverse flow control system for a bypass steam turbine A solution to the problem of excessive rotation loss heating in a bypass steam turbine has been provided by the introduction of a reverse flow of steam to the high-pressure section of the turbine during those operating periods in which such heating is of ... | 10/12/1982 |
| 4353215 | Fluidic control system for turbines A fluidic turbine control system provided to interrelate and control first and second turbine operating conditions, has fluidic computing means operable to proportionally combine fluidic input signals which are representative of the differences, if any, b... | 10/12/1982 |
| 4309873 | Method and flow system for the control of turbine temperatures during bypass operation Method and apparatus to limit and control rotational loss heating such as occurs in a large steam turbine in the bypass mode of operation under no-load and low-load operating conditions. According to the invention, a portion of the high pressure bypass st... | 01/12/1982 |
| 4214451 | Energy cogeneration system An energy cogeneration system of the type employed in industrial plants, such as paper mills, is described. The system utilizes the energy of steam to generate electricity, as well as to operate various industrial processes in the plant. The requirements ... | 07/29/1980 |
| 4205380 | System and method for operating a steam turbine with digital computer control with accelerating setpoint change In a system and method for automatically starting, synchronizing and operating a steam turbine, control means for valve position limiting wherein such limit can be changed non-linearly. Means are provided whereby the system operator has the ability to man... | 05/27/1980 |
| 4118935 | Regulation system for a steam turbine installation A regulation system for a steam turbine installation comprising a steam generator and a multi-stage turbine installation incorporating a high-pressure stage. The regulation system comprises a regulation valve arranged between the steam generator and the h... | 10/10/1978 |
| 4007595 | Dual turbine power plant and a reheat steam bypass flow control system for use therein An electric power plant having dual turbine-generators connected to a steam source that includes a high temperature gas cooled nuclear reactor. Each turbine comprises a high pressure portion operated by superheat steam and an intermediate-low pressure por... | 02/15/1977 |
| 4007596 | Dual turbine power plant and method of operating such plant, especially one having an HTGR steam supply A power plant including dual steam turbine-generators connected to pass superheat and reheat steam from a steam generator which derives heat from the coolant gas of a high temperature gas-cooled nuclear reactor. Associated with each turbine is a bypass li... | 02/15/1977 |
