| Patent Number |
Title Of Patent |
Date Issued |
| 5701731 |
Method of servicing generator in combined cycle power plant |
December 30, 1997 |
| A combined installation configured as a single-shaft installation with common shafting (1) consists essentially of a gas turbine, a steam turbine, the generator (10), which is located between them, and the associated auxiliary systems (12). The generator (10) and the associated auxil |
| 5658358 |
Fuel supply system for combustion chamber |
August 19, 1997 |
| In a fuel supply system with premixing combustion, a gaseous and/or liquid fuel is introduced as a secondary flow into a gaseous, ducted main flow. The secondary flow has a substantially smaller mass flow than the main flow. The main flow is guided via vortex generators (9) of which a |
| 5653578 |
Vertical-axis waterpower machine |
August 5, 1997 |
| In a vertical-axis waterpower machine, the shaft is mounted in a bearing-supporting star. It has a track ring for a supporting bearing. Supporting-bearing segments are supported via adjusting elements on a supporting ring firmly connected to the bearing-supporting star. To simplify t |
| 5651253 |
Apparatus for cooling a gas turbine combustion chamber |
July 29, 1997 |
| In a gas turbine combustion chamber cooled by means of impingement and convection cooling or pure convection cooling, a compensating flow of the cooling air is guided between adjacent cooling ducts (2) in such a way that the flow velocity in the cooling duct (2) always exceeds a critical |
| 5627454 |
Method for stabilizing a power supply network against reactive load fluctuations, and a power fa |
May 6, 1997 |
| During operation, DC arc furnaces (8) produce undesired reactive load fluctuations which are compensated by means of a power factor compensator (31). An AC power controller (28) of the power factor compensator (31) is controlled as a function of a stabilization striking angle signal |
| 5624256 |
Ceramic lining for combustion chambers |
April 29, 1997 |
| In the case of a ceramic lining for combustion spaces, comprising at least one wall panel (3) of high temperature resistant structural ceramic with at least one through-opening (6) and comprising one fastening element (4) per opening (6), the fastening element (4) being fastened by its f |
| 5617447 |
Method of stabilizing a power supply network against reactive load fluctuations, and a reactive |
April 1, 1997 |
| When operating, DC arc furnaces generate undesired reactive load fluctuations which are compensated without special compensation reactance by a reactive power controller. As compensation reactance, use is made of inductors, which are always present and via which the arc furnace is fed |
| 5615546 |
Method and appliance for cooling a gas turbine combustion chamber |
April 1, 1997 |
| In a gas turbine combustion chamber cooled by means of impingement and convection cooling or pure convection cooling, a compensating flow of the cooling air is guided between adjacent cooling ducts (2) in such a way that the flow velocity in the cooling duct (2) always exceeds a critical |
| 5613356 |
Method of cooling thermally loaded components of a gas turbine group |
March 25, 1997 |
| In a method for cooling thermally loaded components of a gas turbine group as part of a combined installation which, in addition, also consists of a waste heat steam generator and a steam cycle, a quantity of saturated steam is extracted from a drum of the steam cycle. The components |
| 5610937 |
Regulation method for a DC arc furnace |
March 11, 1997 |
| In operation, DC arc furnaces produce reactive load fluctuations which lead to undesirable flickering phenomena especially in a frequency range from 2 Hz-20 Hz. In order to reduce these flickering phenomena, comparatively fast reactive power regulation is superimposed on slow current reg |
| 5609030 |
Combustion chamber with temperature graduated combustion flow |
March 11, 1997 |
| In the case of a combustion chamber which is respectively arranged upstream of and downstream of a fluid-flow machine and which essentially comprises an inflow duct (5) and a downstream premixing and combustion zone (5a), a fuel (11) is injected into the combustion air (4) coming from th |
| 5609019 |
Apparatus for operating a gas turbine in a simple cycle and in a cycle combined with a steam tur |
March 11, 1997 |
| A gas turbine apparatus that can be operated selectively in a simple cycle or in a combined steam turbine cycle increases the efficiency of the installation and provides easy switch-over from the simple cycle to the combined cycle, and at the same time provides for cooling the cooling ai |
| 5609018 |
Combined installation for gas and steam turbines |
March 11, 1997 |
| A combined installation configured as a single-shaft installation with common shafting (1) consists essentially of a gas turbine, a steam turbine, the generator (10), which is located between them, and the associated auxiliary systems (12). The generator (10) and the associated auxil |
| 5609017 |
Method and apparatus for operating a combustion chamber for autoignition of a fuel |
March 11, 1997 |
| A method and apparatus for operating a combustion chamber for autoignition of a fuel includes spraying fuel into a hot gas through a plurality of fuel lances disposed in a mixing zone of a combustion chamber for autoignition of the fuel. The fuel lances are supplied with fuel as two |
| 5606279 |
Apparatus for producing a digital input to a recording station |
February 25, 1997 |
| A digital input is disclosed for supplying a digital signal representing the occurrence of a special event, such as a malfunction, to a recording device. The present invention can be advantageously used in a distribution network for electrical energy, in which the special event triggers |
| 5605437 |
Compressor and method of operating it |
February 25, 1997 |
| In a compressor (1), in particular for a gas turbine, which compressor includes a rotor (3), which is rotatably supported about a compressor center line and possesses at its periphery a plurality of rotor blades (5a-d), and a compressor casing (2), which concentrically surrounds the |
| 5603212 |
Fuel injector for a self-igniting combustion chamber |
February 18, 1997 |
| In a combustion chamber (14) of a gas-turbine group which is arranged downstream of a first turbine (11) and upstream of a second turbine (12) and has a burnerless combustion space, extending between the outflow plane of the first turbine (11) and the oncoming-flow plane of the second |
| 5602710 |
Surge arrester |
February 11, 1997 |
| A surge arrester includes at least two connection fittings and a one-piece frame, the frame holding the connection fittings. The frame is formed of an insulating material. The surge arrester includes at least one block of varistor material clamped between the connection fittings. The sur |
| 5602435 |
Gas-cooled electrical machine |
February 11, 1997 |
| In the case of a gas-cooled electrical machine, the effective flow cross-section of the connection from the outer hot-gas chambers to the cooler is provided with an adjustable restrictor device (29, 31; 32, 33). In this way, the splitting of the various cooling-air flows within the m |
| 5598049 |
Slot sealing arrangement |
January 28, 1997 |
| An arrangement for sealing the slots, which are filled with conductor bars or coils, in the laminated stator core of an electrical machine by use of slot sealing elements includes an upper prismatic body, on whose underneath a surface runs in an inclined manner, and a lower prismatic |
| 5593302 |
Combustion chamber having self-ignition |
January 14, 1997 |
| In a combustion chamber consisting essentially of an inflow zone (5) and a combustion zone (11) and having self-ignition, the inflow zone (5) has vortex generators (100), of which a plurality are arranged next to one another over the periphery of the duct through which flow occurs. A |
| 5589674 |
Metal-encapsulated, gas-insulated switching installation |
December 31, 1996 |
| A metal-encapsulated, gas-insulated switching installation is provided with at least one busbar system, the busbar system having an axis separation, and a circuit breaker, the circuit breaker being in the form of a pole and having a pole axis, the circuit breaker including at least one q |
| 5588826 |
Burner |
December 31, 1996 |
| In a burner which consists of a swirl generator (100) on the oncoming-flow side, the flow (40) formed herein is passed smoothly into a mixing section (220). This is done with the aid of a transition geometry which is present at the start of the mixing tube (220) and consists of transitio |
| 5588824 |
Injection nozzle |
December 31, 1996 |
| In an injection nozzle for introducing fuels into compressed gaseous media, for use in premixing burners for example, the injection nozzle (1) consists primarily of a fuel conduit (2) and a passage branching off from the fuel conduit. The fuel conduit (2) extends lengthwise essentially a |
| 5588799 |
Diffusor for a turbo-machine with outwardly curved guided plate |
December 31, 1996 |
| In a diffusor for an axial-flow steam turbine with an axial/radial diffusor, the kink angles of the diffusor inlet both at the hub and at the cylinder of the turbo-machine are determined solely for the purpose of equalizing the total pressure profile over the channel height at the ou |
| 5587594 |
Semiconductor component having gate-turn-off thyristor and reduced thermal impairment |
December 24, 1996 |
| To provide thermal relief, particularly of the edge of disk-shaped gate-turn-off GTO thyristors (GTO) as are used in converters in power electronics, at least one cooling segment which is isolated from a GTO cathode metallization of the GTO thyristor segment (GTO) by a gate electrode |
| 5586866 |
Baffle-cooled wall part |
December 24, 1996 |
| A baffle cooling arrangement for wall parts includes a wall having a wall part to be cooled, a carrier having an inner and an outer surface, the inner surface of the carrier being arranged at a distance from the wall part, and multiple baffle tubes are provided. The baffle tubes each hav |
| 5585678 |
Device and process for monitoring a switch position |
December 17, 1996 |
| A device for monitoring the switch position of a switch including an auxiliary voltage source, which is connected to the switch, a device for converting the switch position into an electrical signal, a device for transmitting the electrical signal and a device for evaluating the tran |
| 5584684 |
Combustion process for atmospheric combustion systems |
December 17, 1996 |
| In the case of a heat generator which essentially consists of a premix burner (100) and a flame tube (1), the hot gases (10) from the combustion in the premix burner (100) are fed into the flame tube (1), and there undergo staged post-combustion. This post-combustion takes place by means |
| 5584182 |
Combustion chamber with premixing burner and jet propellent exhaust gas recirculation |
December 17, 1996 |
| 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) of the combustion chamber. The |
| 5583388 |
Device for holding the ends of the turns of a stator winding in a dynamoelectric machine |
December 10, 1996 |
| The device for holding the ends of the turns of a stator winding in a dynamoelectric machine comprises an inner ring (15) and a segmented outer ring (10). The stator winding, which consists of bottom and top bars (5, 6), is supported at the end side on the said outer ring (10), which in |
| 5581994 |
Method for cooling a component and appliance for carrying out the method |
December 10, 1996 |
| In a method for cooling a thermally loaded component (1) with a plate-type outer wall (2), in which method cooling air is supplied, in a first cooling section (A) of the component (1), through a cooling air supply (5) in the direction towards the outer wall (2) and is deflected laterally |
| 5580218 |
Bladed rotor |
December 3, 1996 |
| In a bladed rotor of an axial-flow turbomachine, the blades essentially consist of a blade body and a blade root. They are fastened with their blade roots in rows in encircling blade grooves having lateral supporting prongs. A shoulder serving to assemble the blades on the rotor is attac |
| 5578806 |
Compressed gas-blast circuit breaker |
November 26, 1996 |
| The compressed gas-blast circuit breaker includes two moving contact members (1, 2) which are guided to move counter to one another along an axis (3) in a chamber which is filled with insulating gas. These contact members each have an arcing contact (8, 9) and a main current contact (6, |
| 5578805 |
Metal-enclosed gas-filled switchgear units |
November 26, 1996 |
| A metal-enclosed, gas-filled switchgear unit has at least two busbar systems and a circuit breaker which respectively has per pole a pole axis and at least one arcing chamber built into a pole housing constructed as a metal enclosure. The pole axes are arranged perpendicular to a foundat |
| 5578804 |
Metal-enclosed gas-insulated switching installation |
November 26, 1996 |
| A metal-enclosed, gas-insulated switching installation includes at least two busbar systems and a circuit breaker. Each circuit breaker is in the form of a pole having a pole axis and at least one extinction chamber, installed in a pole housing. The pole axes are arranged perpendicularly |
| 5577378 |
Gas turbine group with reheat combustor |
November 26, 1996 |
| In a gas turbine group which consists essentially of a compressor (2), a first combustion chamber (3), a first turbine (4), a second combustion chamber (5) and a second turbine (6), the first combustion chamber (3) is configured as an annular combustion chamber. This annular combustion |
| 5575623 |
Drum rotor for an axial-flow turbomachine |
November 19, 1996 |
| In a drum rotor (1) for an axial-flow turbomachine, the blades are fastened with their roots (3) in rows in encircling blade grooves (10) having lateral supporting prongs. At least the first blade groove (10), on the inlet side of the working medium, is shaped in an axially asymmetrical |
| 5575621 |
Compressor with a guide vane fastening arrangement |
November 19, 1996 |
| A compressor having an axially divided casing, includes a plurality of casing halves. Guide vanes are fastened by their roots in peripheral grooves. Distributed over the periphery, bolts are introduced, which are anchored in the groove base of the peripheral groove. These bolts prefe |
| 5575617 |
Apparatus for cooling an axial-flow gas turbine |
November 19, 1996 |
| An apparatus for cooling an axial-flow gas turbine of the type comprising a multi-stage turbine (1) which drives a compressor (10) arranged on a common shaft (13), involves means for removing leakage air from the space surrounding the portion of the shaft between the turbine and the |
| 5574312 |
Low-inductance power semiconductor module |
November 12, 1996 |
| In the case of a power semiconductor module (1) according to the invention, substrates (8) having a power semiconductor assembly (2) are fitted on both sides of a heat sink (3). The power semiconductor assemblies (2) are made contact with by a stack of contact laminates (4), which contac |
| 5573604 |
Process for manufacturing a turbine blade made of an (alpha/beta)-titanium base alloy |
November 12, 1996 |
| The process serves for the manufacture of an erosion-resistant turbine blade which is preferably used in the low-pressure stage of a steam turbine and is made of a vanadium-containing (.alpha./.beta.)-titanium base alloy. This involves the formation, by remelt alloying of a blade sec |
| 5573395 |
Premixing burner |
November 12, 1996 |
| A premixing burner comprises a pilot burner (101) operating on the double-cone principle and a plurality of main burners arranged around the pilot burner. A gaseous and/or liquid fuel is injected into the main burner (52), which has a circular duct (20), as a secondary flow into a ga |
| 5568793 |
Steam generator |
October 29, 1996 |
| In a steam generator having a convective part arranged downstream of the furnace chamber and essentially consisting of final superheater (1), pre-superheater, evaporator and economizer connected in series on the flue-gas side, a further contact heat exchanger (5) having a plurality of |
| 5568722 |
Emission probe for the removal of exhaust gas from the combustion chamber of a gas turbine |
October 29, 1996 |
| In an emission probe (11, 21) for the removal of exhaust gas from the combustion chamber of a gas turbine, comprising a one-piece probe tube (12, 22, 31, 41) which, in its interior, has an emission passage (13, 24, 32, 42) extending in the direction of the tube axis and two cooling p |
| 5566063 |
Electronic power converter circuit arrangement and method for driving same |
October 15, 1996 |
| A method and a device for driving a series circuit of power semicondutor switches (2) are specified. In this case, the voltage loading of the individual switches of the series circuit is balanced by providing that the voltage (Uce1 . . . Ucen) across each switch of the series circuit is |
| 5565822 |
TEM waveguide arrangement |
October 15, 1996 |
| In TEM waveguide arrangements such as are used in testing the electromagnetic compatibility of electronic devices in electromagnetic fields, a plate-shaped inner conductor is connected via electrically parallel-connected tubular resistors to an electrically conductive, spherical rear |
| 5564896 |
Method and apparatus for shaft sealing and for cooling on the exhaust-gas side of an axial-flow |
October 15, 1996 |
| In a method and an apparatus for shaft sealing and for cooling on the exhaust-gas side of a thermal turbomachine, in particular an axial-flow gas turbine, in which the outlet-side bearing arrangement of the turbine rotor is made inside the exhaust-gas casing construction, and labyrinth |
| 5564275 |
Method and apparatus for high-pressure end exhaust gas recirculation on a supercharged internal |
October 15, 1996 |
| A method and apparatus for high-pressure end exhaust gas recirculation on a supercharged internal combustion engine which is relatively simple, low in cost and increases the efficiency of the engine. This is achieved by a third exhaust gas flow of the internal combustion engine expanding |
| 5558524 |
Cable connection for a metal-encapsulated, gas-insulated, high-voltage switching installation |
September 24, 1996 |
| The cable connection is provided for a metal-encapsulated, gas-insulated, high-voltage switching installation. It has a connection enclosure (23) which surrounds connecting parts which are connected to the active parts of the gas-insulated, high-voltage switching installation, and cable |
