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公开(公告)号：US11143102B2
公开(公告)日：2021-10-12
申请号：US16075645
申请日：2017-02-20
摘要： A power conversion system including a first working fluid circuit and a second working fluid circuit. Heat, e.g. waste heat from a top, high-temperature thermodynamic cycle, is transferred to working fluid circulating in the first working fluid circuit and expanded in a first expander to generate useful mechanical power. A heat transfer arrangement is provided, between the first working fluid circuit and second working fluid circuit, configured for transferring low-temperature heat from the first working fluid circuit to the second working fluid circuit. In the second working fluid circuit working fluid is processed, which is expanded in at least one expander to generate useful mechanical power which is used to power a pump or compressor of the first working fluid circuit. The heat of the expanded gas is further used in a second recuperator to pre-heat the first working fluid.
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公开(公告)号：US11125114B2
公开(公告)日：2021-09-21
申请号：US16110806
申请日：2018-08-23
摘要： A turbomachine base plate is disclosed. The base pate includes an upper metal plate and a lower metal plate. The upper metal plate forms a turbomachine supporting surface. The base plate further includes an intermediate layer between the upper metal plate and the lower metal plate and bonded thereto. A frame extends peripherally around the intermediate layer.
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公开(公告)号：US10948045B2
公开(公告)日：2021-03-16
申请号：US15743037
申请日：2016-07-13
发明人： Daniele Panara , Alberto Guglielmo
摘要： A method for stabilizing transversal oscillations of a rotor including the steps of acquiring a first signal representing a value of transversal oscillations of a rotor; estimating a value of a thermal gradient from the first signal; computing a value of an actuation parameter from the value of thermal gradient; emitting an actuation signal representing the value of the actuation parameter.
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公开(公告)号：US10927700B2
公开(公告)日：2021-02-23
申请号：US15619841
申请日：2017-06-12
发明人： Federico Florindo
摘要： A variable geometry assembly for modulating a fluid flow in a turbomachine is disclosed. The assembly comprises a first ring having a plurality of first wedge-shaped elements and having an axis, and a second ring having a plurality of second wedge-shaped elements and having an axis. The second ring is substantially coaxial to the first ring. The second wedge-shaped elements co-act with the first wedge-shaped elements. Flow passages are defined between pairs of sequentially arranged first wedge-shaped elements and second wedge-shaped elements. The first ring and the second ring are angularly displaceable one with respect to the other. Moreover, the first ring and the second ring are configured to move axially with respect to one another when the first ring and the second ring are angularly displaced one with respect to the other.
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公开(公告)号：US10738789B2
公开(公告)日：2020-08-11
申请号：US15516633
申请日：2015-10-02
申请人： Nuovo Pignone Srl
摘要： A turbomachine has a casing where liquid may accumulate; at least one liquid level detector is located inside the casing for automatically detecting liquid accumulated inside the casing during operation of the turbomachine; the liquid level detector may be arranged for detecting one or two or three or four liquid levels inside the casing; the liquid level detector is typically connected to an electronic unit at least for automatically signaling the liquid level. The electronic unit controls at least one valve for automatically discharging the accumulated liquid from the casing; in this way, the status of the turbomachine is not only monitored but also managed.
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公开(公告)号：US11512556B2
公开(公告)日：2022-11-29
申请号：US16637844
申请日：2018-08-08
IPC分类号： E21B33/035 , E21B33/038 , E21B34/02 , E21B34/04 , E21B43/12 , G01V1/38 , E21B47/09
摘要： A method and apparatus are disclosed for reducing flow induced vibration in at least one subsea structure. The method comprises the steps of, via at least one subsea acoustic sensor (190), detecting at least one characteristic associated with acoustic energy in sea water proximate to the sensor (190), responsive to the detected characteristic, varying at least one operational parameter of a fluid flowing along a fluid flow pathway associated with a pipe member (160).
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公开(公告)号：US11384027B2
公开(公告)日：2022-07-12
申请号：US15575976
申请日：2016-05-19
发明人： Iacopo Giovannetti , Antonella Dimatteo , Massimo Giannozzi , Francesco Mastromatteo , Pierluigi Tozzi
IPC分类号： B32B15/04 , C04B35/58 , C04B35/645 , B32B18/00 , C04B35/65 , C04B35/657 , F01D5/28
摘要： A silicide-based composite material is disclosed, comprising a silicide of Mo, B, W, Nb, Ta, Ti, Cr, Co, Y, or a combination thereof, Si3N4, and at least an oxide, as well as and a process for producing the same.
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公开(公告)号：US11352952B2
公开(公告)日：2022-06-07
申请号：US17251269
申请日：2019-06-14
发明人： Luciano Mei , Francesco Caratelli , Alessandro Russo , Massimiliano Mariotti , Alberto Ceccherini
摘要： The gas turbine engine comprises a gas generator (66), comprised of a compressor section (11), and a power turbine section (65). The power turbine section (65) comprises a power turbine rotor (81) supported by a power turbine shaft (93), which is mechanically uncoupled from the gas generator (66). The power turbine shaft (93) has an axial cavity (511) therein, fluidly coupled to a bearing sump (521) fluidly coupled to the compressor section (11) and housing at least one bearing (106) supporting a shaft of the gas generator (66). An air venting path (527) extends from said axial cavity (511) and leads in a combustion gas flow path (515) downstream of the power turbine rotor (81).
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公开(公告)号：US11333075B2
公开(公告)日：2022-05-17
申请号：US16627073
申请日：2018-06-29
发明人： Eugenio Quartieri , Claudio Botarelli , Nicola Vanni , Daniele Bruni , Andrea Carnieri , Bruno Giunta
IPC分类号： F02C7/232 , F02C9/26 , B64D37/32 , F01D19/00 , F02C3/04 , F02C7/236 , F02C7/26 , F23R3/28 , F02D41/22
摘要： A method for safe gas turbine startup is disclosed. The method comprises a first step wherein a fuel metering valve (33) arranged along a fuel delivery line is tested for possible leakages. If the leakage test is successfully passed, a subsequent turbine startup step can be performed. Further disclosed is a gas turbine engine (3) comprising a fuel supply system (20) comprised of a fuel delivery line (21) and a valve arrangement (23) positioned along said fuel delivery line (21). The valve arrangement (23) further comprises sequentially arranged shut off valves (25, 29, 31) and a fuel metering valve (33), positioned downstream of the shut off valves (25, 29, 31). A pressure measuring arrangement (43, 45, 47) is further provided, adapted to measure fuel pressure in at least one portion of the fuel delivery line (21) upstream of the fuel metering valve (33).
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40.发明授权公开(公告)号：US11149953B2
公开(公告)日：2021-10-19
申请号：US15519629
申请日：2015-10-16
申请人： Nuovo Pignone Srl
发明人： Matteo Cerutti
摘要： A method for reducing NOx emissions in a gas turbine in which a flow of primary air and a flow of fuel are fed into a dual annular counter rotating swirler, the primary air flow being fed into the inner and outer annular chambers, wherein the method comprises the step of injecting the flow of fuel into the inner annular chamber; another embodiment is a gas turbine air fuel mixer comprising a dual annular counter rotating swirler comprising a fuel supplying element adapted to supplying fuel inside the inner chamber of the swirler; another embodiment is a gas turbine provided by such air fuel mixer.
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