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91.发明公开公开(公告)号：US20240068371A1
公开(公告)日：2024-02-29
申请号：US18260732
申请日：2022-01-10
CPC分类号： F01D5/28 , F01D11/122 , F05D2230/237 , F05D2300/175 , F05D2300/2282
摘要： The disclosure concerns an abrasive gas turbine blade tip cap preform for bonding to a blade tip to form an abrasive blade tip cap, the abrasive gas turbine blade tip cap preform being formed of a bonding layer and an abrasive layer, the bonding layer being a metallic layer comprising powder size particles of a nickel braze alloy and a nickel base superalloy, and the abrasive layer being a ceramic layer in a metal matrix comprising powder size particles of cubic boron nitride (cBN) and aluminum oxide (Al2O3) in a metal matrix of same composition of the bonding layer. The disclosure also concerns a method of manufacturing an abrasive gas turbine blade tip cap preform and a method of bonding the abrasive gas turbine blade tip cap preform to a blade tip to form an abrasive blade tip cap.
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公开(公告)号：US20230259676A1
公开(公告)日：2023-08-17
申请号：US18005158
申请日：2021-07-12
发明人： Marco PALLADINO , Pierluigi TOZZI , Mattia MODA , Bernardo Disma MONELLI , Leonardo BERTINI , Matteo BENASSI
IPC分类号： G06F30/23
CPC分类号： G06F30/23 , G06F2113/10
摘要： A scaling method for simulating any manufacturing process employing a moving heat source is disclosed. The method is intended to melt or sinter a material, wherein the heat source is driven according to a defined path. The method requires a meso-scale model, which evaluates the physical quantities representative of the process-induced thermal history and residual stress and strain fields for each set of process parameters employed for the given material. The meso-scale results, obtained by modeling one or multiple scan lines, are transferred to the elements of the macro-scale finite element mesh based on the defined path. The scaling is performed pointwise and followed by an averaging operation on the values of the physical quantities computed inside each element of the macro-scale finite element mesh. Finally, a macro-scale simulation is executed for evaluating the residual stresses and distortions arising throughout the entire manufacturing process.
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公开(公告)号：US11692452B2
公开(公告)日：2023-07-04
申请号：US16070492
申请日：2017-01-23
CPC分类号： F01D15/08 , F01D19/00 , F02C7/26 , F02C9/20 , F04D27/0246 , F04D29/462 , F05D2260/85
摘要： A method for operating start-up of a compressor train is disclosed. The train includes a driver machine and at least a centrifugal compressor drivingly coupled to the driver machine. The centrifugal compressor in turn includes a plurality of compressor stages and at least a first set of variable inlet guide vanes at an inlet of one of the compressor stages. The method includes at least partly closing the first set of variable inlet guide vanes; when the first set of variable inlet guide vanes is at least partly closed, starting rotation of the centrifugal compressor and accelerating the centrifugal compressor up to a minimum operating speed; opening the at least one set of variable inlet guide vanes to increase the gas flow through the centrifugal compressor once the minimum operating speed has been achieved.
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公开(公告)号：US11686214B2
公开(公告)日：2023-06-27
申请号：US16056595
申请日：2018-08-07
CPC分类号： F01D25/125 , F01D15/005 , F01D25/16 , F04D29/058 , F16C32/044 , F16C32/0474 , F16C37/005 , F04D25/06 , F05D2220/76 , F05D2240/14 , F05D2240/51 , F05D2240/515 , F05D2260/213 , F16C2360/00 , F16C2360/23 , F16C2360/44
摘要： A turbomachine system includes a turbomachine provided with a turbomachine rotor. The turbomachine rotor is comprised of a turbomachine shaft with a first shaft end and a second shaft end. The turbomachine shaft is supported by active magnetic bearings for rotation in a turbomachine casing. The turbomachine system further includes a rotary machine drivingly coupled to the first shaft end, and a first closed cooling circuit adapted to circulate a cooling fluid therein and fluidly coupled to the active magnetic bearings to remove heat therefrom. The closed cooling circuit includes a cooling fluid impeller mounted on the turbomachine shaft for rotation therewith and adapted to circulate the cooling fluid in the closed cooling circuit. The closed cooling circuit further includes a heat exchanger adapted to remove heat from the cooling fluid. A method of operating a turbomachine system is further disclosed.
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公开(公告)号：US20230151809A1
公开(公告)日：2023-05-18
申请号：US17997855
申请日：2021-04-23
CPC分类号： F04B53/143 , F04B39/0022 , F04B39/122
摘要： The reciprocating compressor has a cylinder with a compression chamber where a piston can slide between a crank-side position and a head-side position; a piston rod is mechanically connected to the piston and during operation of the compressor, slides in a hole of the compression chamber; there is a small gap between the hole and the piston rod; in order to avoid leakage from this gap a jacket is arranged around the piston rod and is sealed on one side to the piston and on the other side to the cylinder at the gap.
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公开(公告)号：US11555496B2
公开(公告)日：2023-01-17
申请号：US15751423
申请日：2016-08-03
摘要： A centrifugal pump including an outer case; an inner case; a first unit and a second unit placed in fluid communication with each other, each unit including a plurality of impellers; the inner case includes two half-parts joined along a connection plane containing the axis of rotation; a connecting element is placed between the first unit and the second unit, the connecting element is engaged with a last impeller of the first unit and with a last impeller of the second unit.
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公开(公告)号：US11346492B2
公开(公告)日：2022-05-31
申请号：US16077137
申请日：2017-02-06
IPC分类号： F16M1/04 , F16B5/00 , E04B1/82 , E04B1/84 , E04B2/72 , F16B5/06 , E04C3/02 , F01D25/28 , F02C7/24
摘要： A fixing system for a panel, particularly for a noise absorption panel, including an omega stringer having a substantially omega-shaped cross-section, wherein the omega stringer includes a central portion and two lateral foot portions; a flat bar longitudinally directly connected to the central portion of the omega stringer; a sealing gasket arranged longitudinally onto the lateral foot portions of the omega stringer or onto the flat bar; wherein height of omega stringer is selected so that, when a panel is clamped between the omega stringer and the flat bar, the sealing gasket is compressed between panel and fixing system.
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公开(公告)号：US10990606B2
公开(公告)日：2021-04-27
申请号：US16004138
申请日：2018-06-08
IPC分类号： G06F16/00 , G06F16/27 , G06F16/242 , G06F16/25 , G06F16/2453 , G06F16/248
摘要： Methods and systems for searching multiple databases are presented. Search connectors are defined between a first and second database, including a search connector having a shared field of the first and second database. Edge connections are generated between the first and second database using the search connector. Each of the edge connections include one or more instances of the shared field in the first and second database. A search query is received from a user interface. The search query is mapped to one of the plurality of search connectors having a specific shared field. A specific instance of the specific shared field is returned, and may be one of the edge connections between the first and second database. In another example, a natural language search query is received, and is translated using the defined search connectors. In a further example, data corresponding to the view name is imported.
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公开(公告)号：US10975877B2
公开(公告)日：2021-04-13
申请号：US15579650
申请日：2016-05-27
IPC分类号： F04D29/04 , F04D29/047 , F01D25/16 , F04D13/06 , F04D29/041 , F16C17/26 , F16C33/10 , F04D1/06 , F04D29/58
摘要： A combined bearing for a turbomachine is disclosed. The combined bearing comprises in combination: a radial bearing member, a thrust bearing member and a bearing-fluid impeller of a bearing-fluid boosting pump in fluid communication with the thrust bearing member and the radial bearing member.
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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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