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Kraftwerk Union Aktiengesellschaft Patents
Assignee:
Kraftwerk Union Aktiengesellschaft
Address:
Mulheim/Ruhr, DE
No. of patents:
446
Patents:


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Patent Number Title Of Patent Date Issued
4887275 High-energy laser system December 12, 1989
A high-energy TE laser system, includes an excitation circuit, a laser head having an optical axis, a laser chamber with a gas space formed therein, at least two laser electrodes being disposed opposite each other and spaced apart in the laser chamber parallel to the optical axis of the
4844857 Pressurized water reactors July 4, 1989
Pressurized water reactor with a primary circuit including therein a reactor pressure vessel, a steam generator and a main coolant pump, and with an auxiliary system having high pressure pumps for feeding water into the primary circuit, including a line extending from an upper side of th
4816193 Method for the manufacture of oxide sintered nuclear fuel bodies March 28, 1989
Method for manufacturing sintered oxidic nuclear fuel bodies by molding uranium oxide starting powder, a mixture of uranium oxide and plutonium oxide starting powder or of uranium-plutonium oxide mixed-crystal starting powder to form blanks and by a heat treatment of these blanks with a
4795341 Method and tunnel furnace for sintering blanks January 3, 1989
Method for sintering blanks into fuel pellets, in which the blanks are moved through the muffle of a tunnel furnace by pushing the blanks through the muffle on a guiding device which goes through the muffle and protrudes therefrom at least on the input side, in the form of a single-layer
4793779 Rotating piston compressor having an axially adjustable rotary sleeve valve December 27, 1988
A rotating piston compressor includes a cylinder having inlet and outlet openings formed therein, a piston rotating in a given direction in the cylinder, a shaft supporting the piston and rotating in the given direction, a casing connected to the cylinder and having slits formed ther
4790976 Device for installing dry PDD lances and for flushing out lance-housing tubes in boiling water r December 13, 1988
Device for flushing out a lance-housing tube in a reactor pressure vessel of a boiling-water reactor and for aligning therein a dry LVD lance which partly protrudes with a pressure-tight lance passthrough from an end flange on the lance-housing tube of the reactor pressure vessel, includ
4789518 Liquid-cooled nuclear reactor especially a boiling-water reactor December 6, 1988
Liquid-cooled nuclear reactor having a reactor pressure vessel and a reactor core of fuel assemblies received therein, the fuel assemblies being grouped into core cells each having a control rod containing absorber material and connected to a drive mechanism, including a sheetmetal s
4788499 Method and eddy current test probe for the inspection of screws for nuclear reactor pressure ves November 29, 1988
A method for the inspection of screws with an eddy current test probe including an insulating material body having a linear contact surface and at least one coil disposed in the body, includes orienting the coil transverse to threads of a reactor pressure vessel setscrew to be inspec
4783030 Apparatus for the mechanical decoupling of piping systems November 8, 1988
An apparatus for the mechanical decoupling of a piping system including a pipe line having at least one connecting pipe section with a connecting point and straight pipe line sections connected to and protruding in different directions from the connecting point, includes first holders in
4781885 Nuclear reactor fuel assembly November 1, 1988
A nuclear reactor fuel assembly includes an elongated fuel channel with a square cross section and channel walls, the fuel channel having an imaginary lattice disposed therein with a box-shaped cross section having mesh openings and sides parallel to the channel walls, fuel rods cont
4780273 Nuclear reactor fuel assembly October 25, 1988
A nuclear reactor fuel assembly for accommodating mutually parallel rods disposed side by side therein includes a spacer formed of two mutually parallel grid sections, each of the grid sections including outer straps flatly facing the rods, each of the grid sections including main sleeve
4779051 Coupling unit for the operative monitoring of the high-voltage wingings and the connected output October 18, 1988
Coupling unit for the operational monitoring of the high-voltage winding (SW) and the connected electric output lines in electric high-voltage machines and apparatus, particularly of three-phase stator windings in turbo-generators including their generator output lines (5.1, 5.2, 5.3)
4778277 Mixing device October 18, 1988
Mixing device for embedding biologically harmful wastes in a solidifying binder, includes a tubular housing, an assembly of a pre-mixer, a pass-through mixer and a discharge pump having rotatingly movable parts disposed along a common rotational axis and in substantially vertical dir
4775005 Method and device for the protection of steam generators, especially nuclear reactor steam gener October 4, 1988
A method for the corrosion protection of steam generators having a housing containing feed water and enclosing a tube bundle with tubes conducting a heat carrier includes continuously determining the redox potential of the feed water during operation of the steam generator, continuously
4774051 Sintered nuclear fuel compact and method for its production September 27, 1988
A sintered nuclear fuel compact of UO.sub.2 or the mixed oxides (U, Pu)O.sub.2 and (U, Th)O.sub.2, with which reactivity losses in a nuclear reactor having relatively long fuel element cycles are avoided, has in its sintered matrix neutron poison in the chemical compound form UB.sub.x wi
4770390 Valve for shutting off a flow September 13, 1988
A valve for shutting off a flow having a housing wherein a plug member is movable between "on" and "off" terminal positions by means of a thread; a rotary drive which is switchable off with time delay in the "off" terminal position of the valve; a resilient member for limiting an increas
4769207 Disassembleable and reassembleable sealing device for pipelines, especially for reactor coolant September 6, 1988
A disassembleable and reassembleable sealing device for pipelines, includes a cylindrical sealing insert being insertable into a pipeline in a given direction, the sealing insert having a front cup part with a closed cross section and a rear ring part, as seen in the given insertion dire
4766851 Combustion chamber for a fluidized-bed furnace August 30, 1988
A combustion chamber with a fluidized bed furnace having a nozzle plate, a fuel feed above the nozzle plate, a primary air feed below the nozzle plate, an exhaust gas channel at an upper end of the combustion chamber, and heat-exchanging heating surfaces includes a cylindrical combustion
4765945 Method and apparatus for measuring the filling level in a reactor pressure vessel of a boiling-w August 23, 1988
A method for measuring the filling level of a liquid in a pressure vessel of a boiling-water reactor, includes measuring the pressure difference between a lower subspace and a reference column, determining steam density in an upper subspace from the measured pressure, determining liquid
4764882 Method of monitoring fatigue of structural component parts, for example, in nuclear power plants August 16, 1988
A method of monitoring fatigue of a stressed component part such as in nuclear power plants or aircraft, with sensors attached to the outside of the component part to be monitored, includes feeding values measured by the sensors at the component parts to be monitored at a given timing cy
4763093 High-power pulse transformer for short high-voltage and/or high-current pulses August 9, 1988
A high-power pulse transformer for short, high-voltage and/or high-current pulses includes:a base plate in a container, an insulating, cooling dielectric liquid with a given heat transfer coefficient in the container;at least one magnet core on the base plate with self-enclosed magnet legs
4760585 Method and furnace for removing toxic, especially radioactive wastes July 26, 1988
Radioactive wastes are treated in a furnace which has electrodes for electric heating. The furnace has at the lower end an outlet for slag material as well as a gas discharge line. Its well is a self-supporting tubular body which is arranged detachably in a metal furnace housing. At
4759221 Apparatus for the determination of surface cracks July 26, 1988
An apparatus for determining the depth of cracks in the surfaces of workpieces includes an ultrasonic transducer for sending ultrasonic signals to and receiving ultrasonic signals from the workpiece, an analyzer connected to the ultrasonic transducer for forming a frequency spectrum
4756768 Method for the chemical decontamination of metallic parts of a nuclear reactor July 12, 1988
Chemical decontamination of metallic parts of nuclear reactor installation in which an oxidative treatment with a permanganic acid solution is applied before dicarbonic acids are used for further treatment. Rinsing operations are eliminated and smaller amounts of dicarbonic acids needed.
4749520 Method for producing casks capable of ultimate storage with radioactive waste, and cask produced June 7, 1988
Method for producing casks capable of ultimate storage of radioactive wastes by filling the wastes to which cement has been added into containers taking radiation shielding into consideration. The casks are filled in at least two stages with partial quantities located concentrically
4749029 Heat sheild assembly, especially for structural parts of gas turbine systems June 7, 1988
A heat shield assembly includes a supporting structure having an outer surface to be shielded from a hot fluid, the supporting structure having cooling fluid ducts formed therein; and an internal lining formed of heat-resistant material, the internal lining including mutually adjacent
4745795 Apparatus for measuring gases dissolved in water May 24, 1988
Apparatus for measuring gases dissolved in water using a gas exchanger to which the water to be tested can be supplied via a water feed line and a carrier gas can be supplied via a gas feed line, and wherein in addition to a water drainage line for degassed water, a gas drainage line for
4744726 Turboset with at least one low-pressure turbine stage having an outer housing and an inner housi May 17, 1988
Turboset includes a horizontal, heat-movable lug mounting of an inner housing of the respective low-pressure turbine stage on lug arms structurally combined with a vacuumtight leadthrough of coupling rods via which the thrust transmission is disposable in vicinity of the thrust trans
4743182 Rotating piston compressor with thin-walled radially-resilient piston May 10, 1988
A rotating piston compressor includes a cylinder having a first given diameter, a thin-walled, radially-resilient piston with a circular cross section and a second given diameter being disposed in the piston, a radial support for the piston in the form of a rotation-symmetrical thin-wall
4741630 Device for the leakage-free removal of bearing oil from sliding bearings for rotation shafts of May 3, 1988
An assembly for the leakage-free removal of bearing oil from sliding bearings for rotating shafts of high-speed machines, includes a sliding bearing axially divided into bearing cups, contactless shaft seals near bearing end surface preventing escape to the surroundings of bearing oil
4738561 Device for protecting wheel discs shrink-fitted on shafts against rotation relative to the shaft April 19, 1988
A wheel disc and shaft assembly for protecting wheel discs shrink-fitted on shafts against rotation relative to the shafts includes a shaft with an outer peripheral surface at a section thereof, a wheel disc having a hub with lateral surfaces and with an inner peripheral surface with a g
4738140 Apparatus for performing pressure, normal force and bending measurements on pipelines April 19, 1988
An apparatus for measuring pressure, normal force and flexure in a cylindrical body includes first wire strain gauges disposed along a pipe in axial direction, second wire strain gauges disposed along the pipe in tangential direction, and an evaluating unit having inputs connected to
4735769 Nuclear reactor fuel assembly April 5, 1988
A nuclear reactor fuel assembly for accommodating mutually parallel rods disposed side by side therein includes a spacer formed of two mutually parallel grid sections having sides, each of the grid sections including outer straps flatly facing the rods at which the grid sections are
4735768 Fuel rod for a nuclear reactor fuel assembly April 5, 1988
Fuel rod cladding tube having an inner tubular layer of a zirconium alloy with alloying components of 1.2 to 1.7% tin, 0.07 to 0.2% iron, 0.05 to 0.15% chromium, 0.03 to 0.08% nickel, 0.07 to 0.15% oxygen, with the sum of percentages of iron, chromium and nickel in the range of 0.18 to 0
4732533 Mounting arrangement for turbomachines, especially steam turbines March 22, 1988
Mounting arrangement for turbomachines, especially steam turbines having a plurality of coaxially juxtaposed turbine states with shafts rigidly coupled to one another to form a shaft line, includes respective step-shaped projections formed on support lugs of turbine stage housings an
4729724 Blower for propelling a continuous gas stream with inflatable gas seals March 8, 1988
An apparatus for propelling a continuous gas mixture stream of an inert carrier gas and an aggressive doping gas, includes an electric motor having a motor housing filled with pure carrier gas and a shaft with a shaft extension, a radial blower having an impeller mounted directly on
4728491 Cladding tube of a zirconium alloy especially for a nuclear reactor fuel rod and method for fabr March 1, 1988
Cladding tube of a zirconium alloy especially for a nuclear reactor fuel rod, characterized by the feature that the geometric mean of the grain diameters in the zirconium alloy is smaller than or equal to 3 .mu.m.
4723407 Combined gas and steam turbine power generating station February 9, 1988
A combined gas and steam turbine power generating station includes: a gas turbine part having a gas turbine and a combustion chamber connected to the gas turbine; a coal gasifier being connected upstream of the gas turbine part and having a raw gas side; a heat exchanger system being
4723358 Apparatus for inserting rods containing nuclear fuel or neutron absorber material in a predeterm February 9, 1988
An apparatus for inserting rods of a rod bundle from a nuclear reactor fuel assembly into a vessel includes a dense-setting device including: a holding cage for laterally holding the rods together in a given dense packing with mutually parallel longitudinal axes, the cage having a bottom
4722001 Self-propelled inspection vehicle January 26, 1988
A self-propelled inspection vehicle for piping systems includes a vehicle body in the form of a rigid, tightly-sealed housing having forward and rearward end faces as seen in a given insertion direction of the vehicle into the piping, a power supply disposed in the housing, a propulsion
4720306 Cleaning method January 19, 1988
Method for cleaning vessels and in particular, steam generators, having deposits which are dissolved chemically and removed mechanically. The copper compounds present in the deposits are dissolved chemically and subsequently, loose deposits and liquids are removed mechanically. Encru
4708641 Waste removal system for problematic materials November 24, 1987
Waste conversion system with a low-temperature carbonizing chamber heated by flue gases and with a gas purification plant, in which, for removing problematic substances, the low-temperature carbonizing chamber is heated by flue gases of a high-temperature melting chamber which is supplie
4706742 Raw gas/purified gas heat exchanger November 17, 1987
Raw gas/purified gas heat exchanger, particularly for dust-laden raw gas, features heat exchanger tubes through which purified gas flows and are arranged in a substantially vertical channel which is open at the bottom and is acted upon by raw gas from above. The tubes are arranged in
4705663 Nuclear reactor fuel element November 10, 1987
In a nuclear reactor fuel element for receiving mutually parallel rods, the improvement includes a rectangular grid-shaped spacer including planar webs crossing and facing the rods defining grid mesh openings receiving the rods, the webs including two outer webs forming an outer corner o
4701124 Combustion chamber apparatus for combustion installations, especially for combustion chambers of October 20, 1987
In a combustion chamber having a flame tube therein at an annular gap from a housing of the chamber, a burner apparatus including at least one pilot burner near an end face of the flame tube for generating a pilot flame from natural gas and/or heating oil, an air supply channel surroundi
4700354 High-energy TE laser system October 13, 1987
A high-energy TE laser system, includes an excitation circuit having supply lines, a laser head having an optical axis, a laser chamber with a gas space formed therein, at least two laser electrodes being disposed opposite each other and spaced apart in the laser chamber parallel to the
4698474 Welding tongs for connecting two abutting pipe ends by arc welding October 6, 1987
Welding tongs for connecting two abutting pipe ends to each other by arc welding, includes two rigid jaws, a clamping device in the form of two symmetrical clamping jaws guided in the rigid jaws in radial direction of the surface of a pipe, the clamping jaws having contact surfaces adapt
4697415 Combined gas and steam-turbine power generating station October 6, 1987
A combined gas and steam-turbine power generating station having a gas-turbine unit and a steam turbine unit, the gas-turbine unit having a gas turbine with a combustion chamber, a coal gasifier preceding the gas turbine unit, a heat exchanger plant including a raw gas/pure gas heat
4697322 Method and device for repairing fuel assemblies of boiling-water nuclear reactors October 6, 1987
A method of repairing under water a boiling water reactor-fuel assembly having a fuel assembly channel and an upper grid plate by means of a channel stripping machine, disassembling the upper grid plate, determining a damaged fuel rod and exchanging the damaged fuel rod for another fuel
4695228 Turbo-machine blade September 22, 1987
Turbo-machine blade with a profile contour having a convex leading edge region, a convex suction side region, a convex trailing edge region and a concavely curved pressure side region, including profile segments being blended into each other forming the profile contour and following each
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