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公开(公告)号：US11753961B2
公开(公告)日：2023-09-12
申请号：US17626610
申请日：2020-07-22
发明人： Takaharu Hiroe , Kazunari Ide , Ryo Sase , Yoshito Nagahama , Hiroshi Ito , Yukihito Okuda , Nobuhiro Osaki , Shoichiro Hosomi
CPC分类号： F01D19/02 , F01D19/00 , F01K13/02 , F05D2220/31 , F05D2260/81 , F05D2260/821
摘要： A startup control device for adjusting a startup schedule during startup of a power generation plant, the device includes: a determining unit which determines, on the basis of a predicted value of a physical quantity corresponding to the elapsed time from startup when the power generation plant has started up on the basis of a prescribed optimal startup schedule, and an observed value of the physical quantity acquired during the startup of the power generation plant, whether the observed value will exceed the predicted value. The device also includes a speed adjusting unit which, if the determining unit determines that the observed value will exceed the predicted value, issues an instruction to decelerate the speed of progress of elapsed time from the startup in the optimal startup schedule; and a startup timer which progresses the elapsed time from the startup at a speed based on the instruction.
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公开(公告)号：US20230141059A1
公开(公告)日：2023-05-11
申请号：US17524196
申请日：2021-11-11
CPC分类号： F01D19/02 , F01D25/12 , F05D2220/323 , F05D2260/232 , F05D2260/85 , F05D2270/3032 , F05D2270/112
摘要： An engine control system may be configured to perform a method of controlling thermal bias in a turbomachine. An exemplary method may include determining a thermal bias-value for the turbomachine, and performing a cooling treatment based at least in part on the thermal bias-value. The thermal bias-value may include a difference between an upward temperature-value corresponding to a first one or more temperature measurements of an upward portion of the turbomachine and a downward temperature-value corresponding to a second one or more temperature measurements of a downward portion of the turbomachine. The cooling treatment may include at least one of: circulating air through at least a portion of the turbomachine, and rotating a shaft of the turbomachine with a motoring system.
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3.发明授权公开(公告)号：US11339683B2
公开(公告)日：2022-05-24
申请号：US16958012
申请日：2018-12-19
摘要： The invention relates to a method for starting a turbine engine in cold weather, including a starting system intended for rotating a drive shaft of the turbine engine, the method comprising the following steps: —a pre-starting step in which a first starting signal is generated to control the drive shaft in a first direction of rotation about a longitudinal axis (X) and in a second opposite direction of rotation in an alternating manner; and —a starting step in which a second starting signal is transmitted to the starting system in order for the latter to drive the drive shaft of the turbine engine in a normal direction of rotation and in which the drive shaft is rotated until a rotation speed that causes the turbine engine to start.
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公开(公告)号：US20220154600A1
公开(公告)日：2022-05-19
申请号：US17591412
申请日：2022-02-02
发明人： John T. Pech , Benjamin T. Harder
摘要： A starter supplemental lubrication system for a gas turbine engine is provided. The starter supplemental lubrication system includes a pneumatic starter operable to drive rotation of a rotor shaft of a gas turbine engine through an accessory gearbox. The pneumatic starter is configured to receive a primary lubricant flow at a first rotational speed range and receive a supplemental lubricant flow at a second rotational speed range that is less than the first rotational speed range. The starter supplemental lubrication system also includes a supplemental lubricant pump operable to supply the supplemental lubricant flow at the second rotational speed range. The supplemental lubricant pump is internal to the pneumatic starter.
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公开(公告)号：US20220106914A1
公开(公告)日：2022-04-07
申请号：US17261677
申请日：2019-07-09
发明人： Stefan Becker , Matthias Nickl , Kai Voit , Johannes Walzik
摘要： A method for starting and stopping a gas turbine in a combined cycle power plant, wherein the gas turbine includes a compressor having adjustable guide vanes and the gas turbine power can also be controlled by opening the guide vanes. When the gas turbine is started, it is driven up to a base load or up to an emission-compliant load point, and the guide vanes are opened before the base load or the emission-compliant load point is reached.
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公开(公告)号：US20210388736A1
公开(公告)日：2021-12-16
申请号：US17321998
申请日：2021-05-17
摘要： A system and method for predicting a remaining oil life of oil in a gearbox of an air turbine starter of a vehicle. The method includes generating a temperature data, generating an environmental data set by an environmental sensor, predicting a remaining oil life based on the temperature data set and the environmental data set and scheduling a maintenance event in response to the prediction of the remaining oil life.
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公开(公告)号：US10975733B2
公开(公告)日：2021-04-13
申请号：US15568148
申请日：2016-04-22
发明人： Matteo Camprini , Matteo Dall'Ara , Filippo Cionini , Sergio Mannucci , Marco Rizzelli , Sergio De Franciscis , Marco Palladino
摘要： A power converting system is described, comprising a source of waste heat and an organic Rankine cycle system. The organic Rankine cycle system in turn comprises at least a turboexpander, at least a rotating load mechanically coupled to the turboexpander and driven thereby, and a variable-speed mechanical coupling between the turboexpander and the rotating load.
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公开(公告)号：US20200347746A1
公开(公告)日：2020-11-05
申请号：US16931857
申请日：2020-07-17
摘要： Embodiments of systems and methods for operating a gas turbine engine defining a bowed rotor condition are generally provided. The systems and methods include rotating a rotor assembly defining a bowed rotor condition from approximately zero revolutions per minute (RPM) to within a bowed rotor mitigation speed range, in which the bowed rotor mitigation speed range is defined by a lower speed limit greater than zero RPM and an upper speed limit less than or equal to an idle speed condition of the gas turbine engine; applying a load at the rotor assembly via an energy storage device; adjusting the load to limit rotational speed or acceleration of the rotor assembly to within the bowed rotor mitigation speed range for a period of time; and removing the load to enable rotation of the rotor assembly to the idle speed condition following the period of time.
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公开(公告)号：US10781754B2
公开(公告)日：2020-09-22
申请号：US15836010
申请日：2017-12-08
发明人： Matthew Chiasson , Jason Tremblay , Leonard Bezman , Ioan Sabau
摘要： A system and method for rotor bow mitigation for a gas turbine engine are provided. An elapsed time since a shutdown of the engine and an idle operation time of the engine prior to the shutdown are determined. A rotor bow mitigation period is determined based on the elapsed time and the idle operation time and, prior to initiating a start sequence of the engine, the engine is motored for a duration of the rotor bow mitigation period.
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10.发明授权公开(公告)号：US10760498B2
公开(公告)日：2020-09-01
申请号：US15861780
申请日：2018-01-04
发明人： Andrew Bryan Cannella , Charles Stanley Orkiszewski , Milind Chandrakant Dhabade , Praveen Sharma , Brian Drummond , Shivam Mittal
摘要： The present disclosure is directed to a gas turbine engine structure and method for reducing or mitigating bowed rotor. The method includes coupling a rotor assembly to a mechanical energy storage device via a clutch mechanism when the rotor assembly is at or below a speed limit below an idle speed condition; storing mechanical energy at the mechanical energy storage device via rotation of the rotor assembly at or below the speed limit; releasing mechanical energy from the mechanical energy storage device to rotate the rotor assembly following shutdown of the gas turbine engine; and rotating the rotor assembly via the mechanical energy from the mechanical energy storage device.
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