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公开(公告)号：US20210277997A1
公开(公告)日：2021-09-09
申请号：US17319530
申请日：2021-05-13
摘要： Described herein is a packing box for mounting on a machinery shaft. In accordance with one aspect, the packing box housing defines a central opening for insertion of a movable machinery shaft with a hollow passageway surrounding the central opening to form a path for the flow of a fluid coolant. The passageway is provided with a fluid inlet port and a fluid outlet port opening onto the outer surface of the packing box housing, and it is formed by a single conduit or by a plurality of conduits obtained through additive manufacturing process and connected in series or in parallel to wound around the central opening.
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公开(公告)号：US20210269895A1
公开(公告)日：2021-09-02
申请号：US17320831
申请日：2021-05-14
发明人： Antonella DIMATTEO
摘要： Method for the additive production of three-dimensional articles is disclosed. A powder layer of nickel-based metal alloy having a specific composition is scanned with an energy source so as to melt the powder in at least one point of the layer. Afterwards the energy source is removed from this point so as to solidify the metal alloy and form a layer with a desired shape. Also disclosed are articles obtainable by this method.
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公开(公告)号：US10941777B2
公开(公告)日：2021-03-09
申请号：US16404097
申请日：2019-05-06
摘要： A double suction impeller is disclosed. In at least one embodiment, the impeller is configured for centrifugal pumps and hydraulic power recovery turbines. The impeller's flow-path arrangement comprises inter-blade channels, intersecting each other at the impeller's outer diameter and defining a variable cross section shape, so that the equivalent number of blades is at least doubled with respect to a conventional configuration obtained by the coupling of two single suction impellers and an improved control over the velocity of the flow within the inter-blade channels is achieved.
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公开(公告)号：US20210063082A1
公开(公告)日：2021-03-04
申请号：US16961283
申请日：2019-01-11
IPC分类号： F25J1/00
摘要： A thermodynamic system containing a working fluid is disclosed. The thermodynamic system comprises at least a working fluid collection vessel (11) adapted to contain a liquid phase and a gaseous phase of the working fluid in thermodynamic equilibrium. A chilling arrangement (51) is functionally coupled to the fluid collection vessel (11) and adapted to remove heat from the working fluid collected in the working fluid collection vessel (11) and thereby reduce pressure in said thermodynamic system. Also disclosed are methods for depressurizing a thermodynamic system containing a working fluid in liquid/gas equilibrium.
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公开(公告)号：US20200325906A1
公开(公告)日：2020-10-15
申请号：US16094585
申请日：2017-01-16
IPC分类号： F04D29/054 , F04D29/051 , F04D29/053 , F16D1/076 , F04D25/02
摘要： A rotary machine is disclosed, which includes a rotary shaft having a rotation axis, a first shaft end, and a second shaft end; a first bearing arrangement at the first shaft end; a second bearing arrangement at the second shaft end; a coupling flange mechanically connected to the first shaft end. The coupling flange is mechanically connected to the first shaft end by means of a first axial-contact coupling.
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56.发明申请公开(公告)号：US20200088179A1
公开(公告)日：2020-03-19
申请号：US16567273
申请日：2019-09-11
摘要： It is disclosed a method for reducing the pulsation level in a multi-compressor plant where each compressor of a plurality of compressors is driven by a respective motor. The method manages to reduce the pulsation level by starting a first motor of a first compressor and then starting in succession each one of the other motors in a way to synchronize all motors between each other with a specified phase shift.
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公开(公告)号：US20190293115A1
公开(公告)日：2019-09-26
申请号：US16345282
申请日：2017-10-24
发明人： Alice INNOCENTI , Lorenzo NALDI
摘要： According to one aspect of the present disclosure, a bearing (100) for supporting a shaft (200) rotating around an axis A is provided. The bearing (100) comprises: a bearing housing (120); and a plurality of tilting pads (130), wherein each tilting pad is connected to the housing (120) via a flexible web support (135) and comprises a bearing surface (136) directed toward a shaft receiving space (125) configured for supporting a shaft. The bearing surface (136) of at least one tilting pad (130) of the plurality of tilting pads is provided with a plurality of lubricant feed openings (140). According to a further aspect, a method of operating a bearing (100) as well as a method of manufacturing a bearing (100) are provided.
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公开(公告)号：US20190257311A1
公开(公告)日：2019-08-22
申请号：US16404097
申请日：2019-05-06
摘要： A double suction impeller is disclosed. In at least one embodiment, the impeller is configured for centrifugal pumps and hydraulic power recovery turbines. The impeller's flow-path arrangement comprises inter-blade channels, intersecting each other at the impeller's outer diameter and defining a variable cross section shape, so that the equivalent number of blades is at least doubled with respect to a conventional configuration obtained by the coupling of two single suction impellers and an improved control over the velocity of the flow within the inter-blade channels is achieved.
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公开(公告)号：US20180363794A1
公开(公告)日：2018-12-20
申请号：US15980156
申请日：2018-05-15
发明人： Leonardo GALEOTTI
摘要： A valve for reciprocating compressors having a valve seat provided with first gas flow passages extending across, a valve guard having second gas flow passages extending across and at least one movable sealing element arranged between the valve guard and the valve seat and configured to move between a closed position, in which the passage of fluid is prevented, and an open position in which the passage of fluid is allowed. The movable sealing element is resiliently biased by resilient members against the valve seat to close the first gas flow passages and the valve seat and the valve guard are relatively movable to define a variable gap or lift for the sealing element.
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公开(公告)号：US12065716B2
公开(公告)日：2024-08-20
申请号：US17320831
申请日：2021-05-14
发明人： Antonella Dimatteo
IPC分类号： C22C1/04 , B22F10/28 , B22F10/36 , B22F10/366 , B22F10/37 , B22F12/41 , B23K26/34 , B23K26/342 , B33Y10/00 , B33Y70/00 , B33Y80/00 , C22C19/05 , B23K26/082 , B23K101/00
CPC分类号： C22C1/0433 , B22F10/28 , B22F10/36 , B22F10/366 , B22F10/37 , B22F12/41 , B23K26/342 , B33Y10/00 , B33Y70/00 , B33Y80/00 , C22C19/055 , B22F2301/15 , B23K26/082 , B23K2101/001
摘要： Method for the additive production of three-dimensional articles is disclosed. A powder layer of nickel-based metal alloy having a specific composition is scanned with an energy source so as to melt the powder in at least one point of the layer. Afterwards the energy source is removed from this point so as to solidify the metal alloy and form a layer with a desired shape. Also disclosed are articles obtainable by this method.
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