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| Number | Title | Issue Date |
| 7223065 | Steam turbine The invention relates to a steam turbine comprising a valve arrangement for regulating the admission of live steam into the turbine consisting of two serially connected regulating valves. The two regulating valves enable a step-by-step separation of the live steam a... | 05/29/2007 |
| 6637207 | Gas-storage power plant The present invention relates to a gas-storage power plant, comprising a gas reservoir (8) in which a gas can be stored under pressure, a turbogroup (2) which has at least one turbine (3, 5), a gas-supply line (9) which leads from the gas reservoir (8) to th... | 10/28/2003 |
| 6638014 | Valve arrangement for a power plant The invention relates to a valve arrangement (1), in particular for a power plant. A housing (2) contains a shut-off valve (3) for shutting off a fluid flow, a control valve (4) for controlling the fluid flow through a housing outlet (8) and a bypass valv... | 10/28/2003 |
| 6302644 | Steam turbine Steam turbines with or without a control stage are constructed with the same number of control valves. There are preferably two control valves in each case. The valve subassembly, the turbine outer casing and parts of the turbine inner casing are of ident... | 10/16/2001 |
| 6241211 | Plate valve The invention relates to a plate valve (1) as used for the actuator of a control valve. It comprises an inlet (2) with a sealing seat (3) around which the openings of the outlet (7) are arranged, and it has two plates (4), (5), between which there is an i... | 06/05/2001 |
| 5467683 | Actuating drive for a control valve This actuating drive (1) for a control valve (2) has a control circuit which sets the actuating drive (1) to correspond with a specified required value from an overriding installation control system. It has, in addition, a main piston (6) sliding in a mai... | 11/21/1995 |
| 5435227 | Operating mechanism for a hydraulic actuator having a pressure-proportional actuating signal This operating mechanism for a hydraulic actuator (2) having a pressure-proportional actuating signal is provided with an amplifier (33) for electric signals, with at least one electrohydraulic transducer (24) connected upstream of the hydraulic actuator ... | 07/25/1995 |
| 4589444 | Electro-hydraulic actuator for turbine valves The electro-hydraulic actuator for turbine valves essentially includes a control valve, a rapid action stop valve, a hydraulic supply and an oil supply unit. In order to create a hydraulic actuator for turbine valves which, on the one hand, satisfies the ... | 05/20/1986 |
| 4227441 | Hydraulic servo-motor for a regulating valve having a hydraulic closing mechanism A valve actuator is disclosed having a servo-motor which regulates the position of a main valve that controls steam supply to a turbine. A hydraulic input signal acts on a pilot valve within the valve actuator body to move a valve spool in response to the... | 10/14/1980 |
| 4225284 | Safety system for a steam turbine installation A safety system for a steam turbine installation is disclosed based on a closed circuit principle and includes a two-channel low-pressure section in which safety devices are utilized and a high pressure section. Each channel of the low-pressure section ac... | 09/30/1980 |
