Patents by Inventor Martin Schoenenberger
Martin Schoenenberger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230057771Abstract: In order to make it easier to access an access unit (4) of a cableway support (1) of a cableway (2), according to the invention a climb-over apparatus (15) for persons to climb over from a cable car (7) of the cableway (2) onto the access unit (4) or vice versa is provided on the cableway support (1), wherein the climb-over apparatus (15) is positioned on the cableway support (1) by means of a fastening unit (21) so as to be movable relative to the access unit (4), wherein the climb-over apparatus (15) can be displaced relative to the access unit (4) from a rest position (RP), in which the climb-over apparatus (15) is stowed on the access unit (4), into a standby position (BP), which is provided for performing the climb-over action.Type: ApplicationFiled: March 31, 2020Publication date: February 23, 2023Inventors: Oliver Schmid, Josef Sutter, Gernot Ilg, Martin Schönenberger
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Publication number: 20220379929Abstract: To simplify the transport of objects with a transport vehicle of a cableway and the loading and unloading of objects, in particular bicycles or other sports or leisure equipment, it is provided that a vehicle component of a drive gear mechanism is rotatably mounted on the transport vehicle, and a station component is arranged in at least one cableway station and interacts at least temporarily with the vehicle component to form a drive gear mechanism when the transport vehicle passes through the cableway station in a direction of conveyance. A receiving part having a plurality of receiving devices for releasably receiving the object is arranged on the transport vehicle, and the receiving part is movable relative to the transport vehicle, and the movement thereof is driven by the vehicle component of the drive gear mechanism.Type: ApplicationFiled: November 11, 2020Publication date: December 1, 2022Inventors: Florian Trittler, Martin Schönenberger
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Patent number: 10253654Abstract: The invention relates to a method for starting a steam turbine. The method involves pre-warming the steam turbine with a steam in which 65% of an energy used to pre-warming the steam turbine is derived from a latent heat energy of the steam.Type: GrantFiled: November 6, 2015Date of Patent: April 9, 2019Assignee: General Electric Technology GmbHInventors: Erhard Liebig, Jean-Marie Gut, Hansjörg Klaiber, Martin Schoenenberger, Goran Hajko
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Patent number: 9882453Abstract: The disclosure refers to a method for providing a frequency response for a combined cycle power plant connected to an electric grid. The combined cycle power plant includes a gas turbine engine and a steam turbine engine. The steam turbine engine includes a boiler, a steam turbine, a pump, a condenser, a bypass for the steam turbine, a steam admission control valve. The steam turbine engine operates with the bypass closed or at least partly open to supply steam from the boiler to the condenser bypassing the steam turbine, and/or with the steam admission control valve at least partly open. The method comprises regulating the output load of the combined cycle power plant by regulating the steam admission control valve and/or by regulating the steam flow through the bypass in response to a frequency change of the electric grid. The output of the gas turbine can also be adjusted, such that steam generated by the boiler is sufficient to achieve the target load for the steam turbine.Type: GrantFiled: February 18, 2014Date of Patent: January 30, 2018Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: Jan Schlesier, Hamid Olia, Martin Schoenenberger
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Publication number: 20160160692Abstract: The invention relates to a method for starting a steam turbine. The method involves pre-warming the steam turbine with a steam in which 65% of an energy used to pre-warming the steam turbine is derived from a latent heat energy of the steam.Type: ApplicationFiled: November 6, 2015Publication date: June 9, 2016Inventors: Erhard LIEBIG, Jean-Marie GUT, Hansjörg KLAIBER, Martin SCHOENENBERGER, Goran HAJKO
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Combined cycle power plant black start method where steam turbine provides increase in demanded load
Patent number: 9328668Abstract: A reliable and flexible black start network restoration for a combined cycle power plant can be achieved by synchronizing a steam turbine and ramping that steam turbine up to an operating point where a maximum power increase is achieved. The resulting steam turbine load change can be compensated by the gas turbine. The increase in the demanded load can be provided by the steam turbine. The load of the steam turbine can also be gradually reduced to increase its load-increasing capacity.Type: GrantFiled: August 31, 2012Date of Patent: May 3, 2016Assignee: ALSTOM TECHNOLOGY LTDInventors: Jan Schlesier, Hamid Olia, Martin Schoenenberger, Martin Liebau -
Patent number: 9140192Abstract: A method of controlling a steam turbine, having a controller controlling at least the position of a steam inlet valve located in a steam conduit between a steam generator and the turbine to control mass flow into the turbine, includes selecting, before beginning startup, a predefined set of startup sequences of setpoints based on a turbine status at the beginning of startup and/or a startup mode chosen by the operator, the set of startup sequences of setpoints includes parameters controlled and not controlled by the controller; using the controller to control the parameters controlled by the controller so as to progress the turbine from setpoint to setpoint in accordance with predefined set of startup sequences until reaching a release point; and at the release point, delaying moving to the next setpoint until actual setpoint values agree with predefined release point setpoint values for parameters not controlled by the controller.Type: GrantFiled: January 11, 2012Date of Patent: September 22, 2015Assignee: ALSTOM TECHNOLOGY LTD.Inventors: Andreas Ehrsam, Thomas Schreier, Martin Schoenenberger
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Patent number: 8881498Abstract: A method for primary regulation of a combined gas and steam turbine installation in network operation, wherein the combined gas and steam turbine installation includes a gas turbine and a steam turbine arranged along at least one shaft includes operating at least one steam turbine actuating valve on a restricted basis along a working steam supply line to at least one pressure stage of the steam turbine so as to provide a steady-state steam turbine reserve power, wherein the at least one steam turbine actuating valve is changed to a less restricted state if a network frequency decreases so as to require network frequency support.Type: GrantFiled: June 26, 2009Date of Patent: November 11, 2014Assignee: Alstom Technology LtdInventors: Hamid Olia, Jan Schlesier, Martin Schoenenberger
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Publication number: 20140239638Abstract: The disclosure refers to a method for providing a frequency response for a combined cycle power plant connected to an electric grid. The combined cycle power plant includes a gas turbine engine and a steam turbine engine. The steam turbine engine includes a boiler, a steam turbine, a pump, a condenser, a bypass for the steam turbine, a steam admission control valve. The steam turbine engine operates with the bypass closed or at least partly open to supply steam from the boiler to the condenser bypassing the steam turbine, and/or with the steam admission control valve at least partly open. The method comprises regulating the output load of the combined cycle power plant by regulating the steam admission control valve and/or by regulating the steam flow through the bypass in response to a frequency change of the electric grid. The output of the gas turbine can also be adjusted, such that steam generated by the boiler is sufficient to achieve the target load for the steam turbine.Type: ApplicationFiled: February 18, 2014Publication date: August 28, 2014Inventors: Jan SCHLESIER, Hamid OLIA, Martin SCHOENENBERGER
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Publication number: 20130177388Abstract: A method of controlling a steam turbine, having a controller controlling at least the position of a steam inlet valve located in a steam conduit between a steam generator and the turbine to control mass flow into the turbine, includes selecting, before beginning startup, a predefined set of startup sequences of setpoints based on a turbine status at the beginning of startup and/or a startup mode chosen by the operator, the set of startup sequences of setpoints includes parameters controlled and not controlled by the controller; using the controller to control the parameters controlled by the controller so as to progress the turbine from setpoint to setpoint in accordance with predefined set of startup sequences until reaching a release point; and at the release point, delaying moving to the next setpoint until actual setpoint values agree with predefined release point setpoint values for parameters not controlled by the controller.Type: ApplicationFiled: January 11, 2012Publication date: July 11, 2013Applicant: ALSTOM TECHNOLOGY LTDInventors: Andreas EHRSAM, Thomas SCHREIER, Martin SCHOENENBERGER
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Publication number: 20130145772Abstract: A method is provided for operating a combined cycle power plant. Flue gas of a gas turbine is used for producing steam for a steam turbine. A reliable and flexible black start network restoration is achieved by: a) in island mode, supplying internal consumers by the gas turbine, the operating point of which is selected so that a minimum steam temperature is achieved; b) in island mode, the steam turbine is synchronized and ramped up to an operating point where a maximum power increase is achieved, the resulting steam turbine load change is compensated by the gas turbine; c) consumer loads are connected blockwise; d) the increase in the demanded load being provided by the steam turbine; e) the load of the steam turbine is gradually reduced increasing its load-increasing capacity; and steps c)-e) are repeated until the power plant's base load is achieved.Type: ApplicationFiled: August 31, 2012Publication date: June 13, 2013Applicant: ALSTOM TECHNOLOGY LTDInventors: Jan Schlesier, Hamid Olia, Martin Schoenenberger, Martin Liebau
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Publication number: 20090320493Abstract: A method for primary regulation of a combined gas and steam turbine installation in network operation, wherein the combined gas and steam turbine installation includes a gas turbine and a steam turbine arranged along at least one shaft includes operating at least one steam turbine actuating valve on a restricted basis along a working steam supply line to at least one pressure stage of the steam turbine so as to provide a steady-state steam turbine reserve power, wherein the at least one steam turbine actuating valve is changed to a less restricted state if a network frequency decreases so as to require network frequency support.Type: ApplicationFiled: June 26, 2009Publication date: December 31, 2009Applicant: ALSTOM Technology LtdInventors: Hamid Olia, Jan Schlesier, Martin Schoenenberger