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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：US11686181B2
公开(公告)日：2023-06-27
申请号：US17290076
申请日：2019-11-20
发明人： Odd Marius Rosvold , Dario Marchetti , Philip Tarr , Staale Svindland , Leonardo Lani , Erik Raad
CPC分类号： E21B41/04 , F15B15/261 , H02G1/10
摘要： The present invention relates to a locking mechanism or tool adapted for connection to a remotely operated vehicle and adapted for at least one of the group consisting of connection and disconnection of two plates. The present invention also concerns a system adapted for at least one of the group consisting of connection and disconnection of two plates, where the system comprises said locking mechanism or tool.
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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：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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公开(公告)号：US10948053B2
公开(公告)日：2021-03-16
申请号：US16316349
申请日：2017-07-06
摘要： The system comprises: a main driver configured for rotating at a substantially constant rotational speed; a rotating load configured to be driven into rotation by the main driver; a controller, for controllably adjusting a load rotational speed; a variable speed transmission, arranged between the main driver and the load and comprised of a speed summing gear arrangement having a first input shaft, a second input shaft and an output shaft; an auxiliary driver, mechanically coupled to the second input shaft of the speed summing gear arrangement. The first input shaft of the speed summing gear arrangement is drivingly coupled to the main driver. The output shaft of the speed summing gear arrangement is drivingly coupled to the rotating load. The speed of the output shaft is a combination of a speed of the main driver and of a speed of the auxiliary driver.
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公开(公告)号：US10907642B2
公开(公告)日：2021-02-02
申请号：US15742953
申请日：2016-07-07
发明人： Lorenzo Gallinelli , Marco Pelella
摘要： A compressor system including: a first compressor having a compressor suction side and a compressor delivery side; an anti-surge line having an inlet and an outlet; an anti-surge valve arranged along the anti-surge line and controlled for recirculating a gas flow from the compressor delivery side back to the compressor suction side; a gas temperature manipulation arrangement, functionally connected to the inlet of the anti-surge line, configured to reduce or prevent liquid phase in the anti-surge line when the anti-surge valve is open.
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8.发明授权公开(公告)号：US10851674B2
公开(公告)日：2020-12-01
申请号：US15572200
申请日：2016-05-06
摘要： The invention relates to a method and apparatus for assembling nozzles 31 between buckets 41,42 of a turbine, particularly a gas turbine, in which a temporary fixing of the nozzles 31 to the buckets 41,42 during the assembly is provided.
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公开(公告)号：US10830281B2
公开(公告)日：2020-11-10
申请号：US15759840
申请日：2016-09-23
摘要： The method is used for uniforming temperature in a shaft supported by a fluid bearing during rotation of the shaft; a journal portion of the shaft is located inside the fluid bearing; at least one passage is provided inside the shaft at least along the journal portion so to cross it; at least one flow of heat-exchange fluid is established in the at least one passage; the method allows to overcome the problems due to the “Morton effect”. A bearing system implementing the method is advantageously used in a turbomachine.
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公开(公告)号：US10823179B2
公开(公告)日：2020-11-03
申请号：US15104581
申请日：2014-12-16
申请人： Nuovo Pignone Srl
IPC分类号： F01D5/06 , F04D17/12 , F04D29/62 , F04D29/054 , F04D29/056
摘要： A set of impellers that are axially adjacent to each other and that have respective axial through holes are assembled. At least a first and a second axial tie rods are used. At least one connection element being axially adjacent to two impellers respectively at its two sides and having an axial through hole is provided. The connection element is used for securing, at one side of its axial through hole, an end of the first axial tie rod and, at the other side of its axial through hole, an end of the second axial tie rod. Typically, the connection element is one of the impellers of the set.
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