| Patent application number | Description | Published |
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| 20100091784 | FILTERING OF REDUNDANT FRAMES IN A NETWORK NODE - A method of filtering redundant frames including a MAC source address, a frame ID and a CRC value, in a network node with two ports each including a transmitting device and a receiving device, is provided. The transmitting device includes a transmission list in which frames to be transmitted are stored. The receiving device includes a receiving memory for storing a received frame. For filtering redundant frames in a network node, a first frame is received by one of the two ports. After reception of the MAC source address and the frame ID of the first frame in the transmission list of the port, a second frame with the same MAC source address and frame ID is sought. If the second frame is present, the first frame is neither forwarded to a local application nor forwarded to send to other ports, and the second frame is not sent. | 04-15-2010 |
| 20100229063 | Replacement messages for identifying and preventing errors during the transmission of realtime-critical data - A destination node in a data network for transmission of real-time data by a data telegram, the data telegram including an identification, data and a transfer status, is provided. The destination node includes a device for receiving a first data telegram, a device for storing the data of the first data telegram and an assigned timer value, a device for receiving a second data telegram and a device for replacing the stored data of the first data telegram, wherein the stored data of the first data telegram is replaced with data of the second data telegram. Further, a method and a non-transitory storage medium are provided. | 09-09-2010 |
| 20110022914 | Replacement messages for identifying and preventing errors during the transmission of realtime-critical data - A destination node in a data network for transmission of real-time data by a data telegram, the data telegram including an identification, data and a transfer status, is provided. The destination node includes a device for receiving a first data telegram, a device for storing the data of the first data telegram and an assigned timer value, a device for receiving a second data telegram and a device for replacing the stored data of the first data telegram, wherein the stored data of the first data telegram is replaced with data of the second data telegram. Further, a method and a non-transitory storage medium are provided. | 01-27-2011 |
| Patent application number | Description | Published |
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| 20100091784 | FILTERING OF REDUNDANT FRAMES IN A NETWORK NODE - A method of filtering redundant frames including a MAC source address, a frame ID and a CRC value, in a network node with two ports each including a transmitting device and a receiving device, is provided. The transmitting device includes a transmission list in which frames to be transmitted are stored. The receiving device includes a receiving memory for storing a received frame. For filtering redundant frames in a network node, a first frame is received by one of the two ports. After reception of the MAC source address and the frame ID of the first frame in the transmission list of the port, a second frame with the same MAC source address and frame ID is sought. If the second frame is present, the first frame is neither forwarded to a local application nor forwarded to send to other ports, and the second frame is not sent. | 04-15-2010 |
| 20100229063 | Replacement messages for identifying and preventing errors during the transmission of realtime-critical data - A destination node in a data network for transmission of real-time data by a data telegram, the data telegram including an identification, data and a transfer status, is provided. The destination node includes a device for receiving a first data telegram, a device for storing the data of the first data telegram and an assigned timer value, a device for receiving a second data telegram and a device for replacing the stored data of the first data telegram, wherein the stored data of the first data telegram is replaced with data of the second data telegram. Further, a method and a non-transitory storage medium are provided. | 09-09-2010 |
| 20110022914 | Replacement messages for identifying and preventing errors during the transmission of realtime-critical data - A destination node in a data network for transmission of real-time data by a data telegram, the data telegram including an identification, data and a transfer status, is provided. The destination node includes a device for receiving a first data telegram, a device for storing the data of the first data telegram and an assigned timer value, a device for receiving a second data telegram and a device for replacing the stored data of the first data telegram, wherein the stored data of the first data telegram is replaced with data of the second data telegram. Further, a method and a non-transitory storage medium are provided. | 01-27-2011 |
| Patent application number | Description | Published |
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| 20100089024 | Method for operating a gas and steam turbine plant and a gas and steam turbine plant for this purpose - A method for operating a gas and steam turbine plant is provided. In the plant, the flue gas that escapes from a gas turbine is routed through a waste gas steam generator and where a flow medium that is used to drive a steam turbine is conducted in a flow medium circuit that includes several pressure stages. At least one of the pressure stages has an evaporator circuit with a steam collection drum that has a plurality of downpipes connected to the steam collection drum and a plurality of rising pipes downstream of the downpipes that are likewise connected to the steam collection drum and are heated by the flue gas in the waste heat steam generator. The height of the fluid column formed by the flow medium in the downpipes is monitored and a transient dry operation of the evaporator circuit can thus be detected and safeguarded against. | 04-15-2010 |
| 20100288210 | Method for operating a once-through steam generator and forced-flow steam generator - A method for operating a once-through steam generator including an evaporator heating surface is provided. A target value for the supply water mass flow is fed to a device for setting the supply water mass flow, which is predefined using the ratio of the heat flow currently being transferred in the evaporator heating surface from the hot gas to the flow medium to a target enthalpy increase predefined with respect to the desired live steam condition of the flow medium in the evaporator heating surface. A forced-flow steam generator used for carrying out the method is also provided. The heat flow transferred from the hot gas to the flow medium is ascertained for this purpose allowing for a specific temperature value characteristic of the current temperature of the hot gas at the evaporator inlet and a specific mass flow value characteristic for the current mass flow of the hot gas. | 11-18-2010 |
| 20110041783 | Steam Generator - A steam generator of a technical plant, in particular a power plant, comprising a heating gas passage enclosed by a gas-tight enclosing wall, wherein the heating gas passage has a number of heating surfaces through which a flow medium can flow, is to ensure especially reliable cleaning of the heating gas flowing off from the heating gas passage at an especially low design and production cost. To this end, provision is made according to the invention for at least one of the heating surfaces to be at least partly provided with a catalytic coating on its side facing the heating gas. | 02-24-2011 |
| 20130047611 | SOLAR POWER PLANT PART OF A SOLAR THERMAL POWER PLANT AND SOLAR THERMAL POWER PLANT PROVIDED WITH SOLAR COLLECTOR SURFACES FOR A HEAT TRANSFER MEDIUM AND WORKING MEDIUM - A solar power plant part of a solar thermal power plant including a first solar collector surface which is arranged in one section of a heat transfer medium circuit is provided. A second solar collector surface is arranged in the solar power plant part as a super heater for a working medium which may be released for technical work in a turbine. A solar thermal power plant which includes a solar power plant part is also provided. The solar thermal plant includes a working medium circuit and a steam turbine. A method for operating a solar thermal power plant is also provided. | 02-28-2013 |
| 20130047938 | METHOD FOR OPERATING A STEAM GENERATOR - A method for operating a steam generator comprising a combustion chamber having a plurality of evaporator heating surfaces which are connected in parallel on the flow medium side is provided. An object is to provide a steam generator which has a particularly long service life and which is particularly reliable. For this purpose, a flow medium is introduced into an inlet of a first evaporator heating surface at a temperature which is lower than the temperature of the flow medium introduced into the inlet of a second evaporator heating surface. | 02-28-2013 |
| 20130067982 | APPARATUS FOR PRODUCING INSERTS FOR STEAM GENERATOR TUBES - An apparatus for producing inserts for steam generator tubes is provided. The apparatus is intended to allow a technically particularly simple production process, and consequently allow particularly high-speed production of inserts. For this purpose, the apparatus includes a winding head with a wire guiding pin, a guiding opening for a former shaft, provided with a number of spiral slots, and a pressure roller, the wire guiding pin, the guiding opening and the pressure roller being arranged in such a way that a tangent of the pressure roller and of a slot of the former shaft and the guiding axis of wire guiding pin substantially coincide. | 03-21-2013 |
| 20130087106 | METHOD FOR PRODUCING STEAM GENERATOR TUBES - A method for producing steam generator tubes is provided. The method is intended to allow a technically particularly simple production process and at the same time allow particularly high flexibility with regards to the materials that may be used to achieve a particularly high efficiency of a steam generator. For this purpose, an insert is fixed in slots of a former shaft, the former shaft with the insert is introduced into a steam generator tube, the fixing of the insert on the former shaft is released and the former shaft is removed again from the steam generator tube. | 04-11-2013 |
| 20130167504 | METHOD FOR REGULATING A SHORT-TERM POWER INCREASE OF A STEAM TURBINE - A method for regulating a short-term power increase of a steam turbine with an upstream waste-heat steam generator is provided. The steam turbine has a number of economizer, evaporator and super heater heating surfaces forming a flow path for a flow medium. The flow medium is tapped off from the flow path in a pressure stage and is injected into the flow path on the flow-medium side between two super heater heating surfaces of the respective pressure stage. Amount of flow medium injected is regulated with a characteristic value which is a discrepancy between the outlet temperature of the final super heater heating surface and a predetermined temperature nominal value. The temperature nominal value is reduced and the characteristic value is temporarily increased more than in proportion to the discrepancy for a time period of the reduction for achieving a short-term power increase of the steam turbine. | 07-04-2013 |
| 20130167533 | WASTE HEAT STEAM GENERATOR - A waste heat steam generator for a gas and steam turbine power plant is provided. The generator has economizer, evaporator and superheater heating surfaces which form a flow path and through which a flow medium flows. An overflow line branches off from the flow path and leads to injection valves arranged downstream at a flow side of a superheater heating surface in the flow path. The overflow line permits a brief power increase of a downstream steam turbine without resulting in an excessive loss in efficiency of the steam process. The brief power increase is permitted independently of the type of waste heat steam generator. The branch location of the overflow line is arranged upstream of an evaporator heating surface at the flow medium side and downstream of an economizer heating surface. | 07-04-2013 |
| 20130186089 | CONTINUOUS FLOW STEAM GENERATOR HAVING AN INTEGRATED REHEATER - A continuous flow steam generator including a vessel with a heat transfer medium inlet and a heat transfer medium outlet is provided. A heat transfer medium channel is formed between the heat transfer medium inlet and the heat transfer medium outlet, and a heat transfer medium flows in the channel, having steam generator tubes disposed in the heat transfer medium channel, wherein a first portion of the steam generator tubes, and a second portion of the steam generator tubes is designed as a system of preheating and boiler tubes, and the first portion is disposed upstream of the second portion in the flow direction of the heat transfer medium. A steam generator device having a continuous flow steam generator and a water separation system is also provided along with a solar thermal power plant. | 07-25-2013 |
| 20130186872 | METHOD FOR CONTROLLING A SPOT WELDING SYSTEM, INCLUDING THE DETERMINATION OF THE POSITION OF AN INSERTED ELEMENT IN A HOLLOW MEMBER; ASSOCIATED SPOT WELDING SYSTEM - A method of controlling a spot welding system used for attaching an inserted element in a hollow member is provided. A position of the inserted element in the hollow member is determined, the position of an attachment point is determined from the position of the inserted element in the hollow member, and a spot welding operation is performed at the attachment point. Further, a spot welding system for carrying out the method is provided. | 07-25-2013 |
| 20130192229 | METHOD FOR OPERATING A COMBINED GAS AND STEAM TURBINE SYSTEM, GAS AND STEAM TURBINE SYSTEM FOR CARRYING OUT SAID METHOD, AND CORRESPONDING CONTROL DEVICE - A method of operating a combined gas and steam turbine system is provided. The system includes a gas turbine, a waste heat steam generator with an evaporator heating area, and a steam turbine. Fluid is fed to the waste heat steam generator as feed water. A primary control loop controls a feed water flow rate. Taking into account heat stored in the evaporator heating area, a primary desired value for the feed water flow rate is determined based upon a desired overheating value characteristic of a temperature by which the fluid exceeds a boiling point as the fluid exits the evaporator heating area and based upon a heat flow parameter characteristic of a heat flow transfer from fuel gas to the fluid via the evaporator heating area. The desired overheating value is lowered from a first value to a second value in order to activate an instantaneous power reserve. | 08-01-2013 |
| 20130205784 | FORCED-FLOW STEAM GENERATOR - A forced-flow steam generator includes first and second steam generator pipes which form a surrounding wall, wherein the first and second steam generator pipes are welded in a gas-tight fashion and are traversable by flow in a vertical direction. A passage collector is arranged within the surrounding wall, wherein the passage collector connects the first steam generator pipes with the second steam generator pipes. The first steam generator pipes are connected at an outlet side to an inlet side of the second steam generator pipes, wherein the second steam generator pipes are connected in series with the first steam generator pipes. Each of the second generator pipes has a restrictor device. Further, a power plant with a forced-flow steam generator is provided. | 08-15-2013 |
| 20130319403 | METHOD FOR OPERATING A SOLAR-THERMAL PARABOLIC TROUGH POWER PLANT - A method for operating an indirectly heated, solar-thermal steam generator and to an indirectly heated, solar-thermal steam generator are provided. A heat transfer medium is used in the solar-thermal steam generator. The supply water mass flow M is predictively controlled by a device for adjusting the supply water mass flow M. To this end, a nominal value Ms is fed to the device. A correction value K | 12-05-2013 |
| 20130327043 | METHOD FOR REGULATING A BRIEF INCREASE IN POWER OF A STEAM TURBINE - A method is provided for regulating a brief increase in power of a steam turbine that has an upstream fossil-fired once-through steam generator having a plurality of economizer, evaporator and superheater heating surfaces which form a flow path and through which a flow medium flows. The flow of the flow medium through the fossil-fired once-through steam generator is increased in order to achieve the brief increase in power of the steam turbine. The method involves using desired enthalpy value at the outlet of an evaporator heating surface as a control variable for determining a desired value for the flow of the flow medium through the fossil-fired once-through steam generator. The desired enthalpy value is reduced in order to achieve the brief increase in power of the steam turbine. | 12-12-2013 |
| 20140034044 | METHOD FOR OPERATING A DIRECTLY HEATED, SOLAR-THERMAL STEAM GENERATOR - A method for operating a directly heated, solar-thermal steam generator is provided. As per the method, a nominal value M | 02-06-2014 |
| 20140109547 | METHOD FOR OPERATING A RECIRCULATING WASTE HEAT STEAM GENERATOR - A method for operating a recirculating waste heat steam generator is provided, in which in a pressure stage of the recirculating waste heat steam generator, the feed water mass flow is guided on the basis of a specified desired value in order to control the water level in a drum. The method should give a recirculating waste heat steam generator a particularly high degree of efficiency and simultaneously a particularly high level of operational flexibility. For this purpose the thermal input introduced into an evaporator of the pressure stage is used as input variable in the determination of the desired value. | 04-24-2014 |
| 20150083111 | METHOD AND APPARATUS FOR OPERATING A SOLAR THERMAL POWER PLANT - A solar thermal power plant, wherein, in an intermediate superheater in the water-steam circuit, steam is heated to a settable setpoint temperature value at the outlet by a heat carrier medium which has been heated solar-thermally, wherein, for the heating of the steam to a set setpoint temperature value, a mass flow of the heat carrier medium entering the intermediate superheater is controlled as a function of a determined enthalpy difference of the heat carrier medium between the entry and exit thereof into and out of the intermediate superheater and as a function of a determined enthalpy difference of the steam between the exit and entry thereof out of and into the intermediate superheater is provided. | 03-26-2015 |
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| 20080203409 | PROCESS FOR PRODUCING (Al, Ga)N CRYSTALS - The present invention relates to a novel process for producing (Al, Ga)N and AlGaN single crystals by means of a modified HVPE process, and also to (Al, Ga)N and AlGaN single crystals of high quality. | 08-28-2008 |
| 20110018106 | METHOD FOR PRODUCING III-N LAYERS, AND III-N LAYERS OR III-N SUBSTRATES, AND DEVICES BASED THEREON - An epitaxial growth process for producing a thick III-N layer, wherein III denotes at least one element of group III of the periodic table of elements, is disclosed, wherein a thick III-N layer is deposited above a foreign substrate. The epitaxial growth process preferably is carried out by HVPE. The substrate can also be a template comprising the foreign substrate and at least one thin III-N intermediate layer. The surface quality is improved by providing a slight intentional misorientation of the substrate, and/or a reduction of the N/III ratio and/or the reactor pressure towards the end of the epitaxial growth process. Substrates and semiconductor devices with such improved III-N layers are also disclosed. | 01-27-2011 |
| 20140151716 | PROCESS FOR THE MANUFACTURE OF A DOPED III-N BULK CRYSTAL AND A FREE-STANDING III-N SUBSTRATE, AND DOPED III-N BULK CRYSTAL AND FREE-STANDING III-N SUBSTRATE AS SUCH - A process for producing a doped III-N bulk crystal, wherein III denotes at least one element of the main group III of the periodic system, selected from Al, Ga and In, wherein the doped crystalline III-N layer or the doped III-N bulk crystal is deposited on a substrate or template in a reactor, and wherein the feeding of at least one dopant into the reactor is carried out in admixture with at least one group III material. In this manner, III-N bulk crystals and III-N single crystal substrates separated therefrom can be obtained with a very homogeneous distribution of dopants in the growth direction as well as in the growth plane perpendicular thereto, a very homogeneous distribution of charge carriers and/or of the specific electric resistivity in the growth direction as well as in the growth plane perpendicular thereto, and a very good crystal quality. | 06-05-2014 |
