公开(公告)号：US11293556B2

公开(公告)日：2022-04-05

申请号：US15524799

申请日：2015-10-23

申请人： Nuovo Pignone Srl

发明人： Pierluigi Tozzi ,  Iacopo Giovannetti ,  Alberto Babbini ,  Francesco Buffa

IPC分类号： F16K11/04 ,  F04B39/10 ,  F16K15/08 ,  B29D99/00 ,  F16K27/02 ,  B29K71/00 ,  B29K81/00 ,  B29K509/08

摘要： An automatic ring valve 10 comprising a valve seat 12 provided with a plurality of gas flow passages 14 arranged according to at least one annular row, at least a shutter 18 comprising at least one ring-shaped portion for selectively closing and opening the gas flow passages 14, wherein said ring-shaped portion of the shutter 18 comprises a fiber-reinforced matrix 40, at least one contrasting member for contrasting an opening movement of ring-shaped portion of the shutter 18, wherein said ring-shaped portion of the shutter 18 comprises a structural core 18A made by said fiber-reinforced matrix 40, and wherein at least a portion of said structural core 18A is covered by at least one primary layer 18B, designed to improve fracture and/or impact and/or wear resistance of said ring-shaped portion.

公开(公告)号：US11033959B2

公开(公告)日：2021-06-15

申请号：US15327645

申请日：2015-07-20

申请人： NUOVO PIGNONE SRL

发明人： Iacopo Giovannetti ,  Pierluigi Tozzi ,  Massimo Giannozzi

IPC分类号： B22F10/20 ,  B33Y10/00 ,  B22F1/00 ,  C22C32/00 ,  B33Y40/00 ,  B33Y70/00 ,  B33Y80/00 ,  B23K26/342 ,  B23K26/70 ,  B22F3/15 ,  B22F3/24 ,  B23K26/00 ,  C22C19/05 ,  C22C19/07 ,  C22C27/02 ,  C22C27/04 ,  B23K101/00 ,  B23K103/02 ,  B23K103/08 ,  F01D5/28 ,  F01D9/02

摘要： A method for manufacturing a machine component made of metal-based material is described. The method comprises the steps of: providing a powder blend comprising at least one metal-containing powder material and at least one strengthening dispersor in powder form, wherein the strengthening dispersor in powder form has an average grain size less than an average grain size of the metal-containing powder material; and forming the machine component by an additive manufacturing process using the powder blend.

公开(公告)号：US11008893B2

公开(公告)日：2021-05-18

申请号：US15524028

申请日：2015-10-30

申请人： Nuovo Pignone Srl

发明人： Giacomo Bencini ,  Fabio Fornaciari ,  Leonardo Tognarelli ,  Pierluigi Tozzi

IPC分类号： F01D25/24 ,  F01D9/04 ,  F01D9/06 ,  F01D11/00

摘要： A sector for the assembly of a stage of a turbine comprises a central and a peripheral portion; a plurality of blades attached between the central and the peripheral portions; a first and a second side opposite to each other, the first side is configured to join with the second side of another sector, the first side is provided with a first connecting portion and the second side is provided with a second connecting portion configured to mate with a first connecting portion of a first side of another sector.

公开(公告)号：US10816006B2

公开(公告)日：2020-10-27

申请号：US15756697

申请日：2016-09-07

申请人： Nuovo Pignone Tecnologie Srl

发明人： Fabrizio Milone ,  Giulio Elicio

IPC分类号： F04D29/041 ,  F04D29/051 ,  F16J15/00 ,  F16J15/16 ,  F04D29/10 ,  F16C33/10 ,  F04D29/16 ,  F16C17/02 ,  F16J15/44

摘要： The turbomachine comprises a stationary casing with a rotating member configured to rotate about a rotation axis in the stationary casing. The turbomachine further includes a rotating balance drum, arranged for co-rotation with the rotating member. A stationary sleeve is arranged in a fixed relationship with the stationary casing and surrounds the balance drum. The stationary sleeve comprises a plurality of consecutively arranged sleeve sections. A fluid channel is defined by an outer surface of the balance drum and an inner surface of the stationary sleeve. Between at least one pair of sequentially arranged upstream sleeve section and downstream sleeve section an annular chamber is provided, fluidly coupled to the fluid channel. Shunt holes are arranged on the upstream sleeve section, each shunt hole having a shunt hole inlet on an inner surface of the upstream sleeve section, and a shunt hole outlet in the annular chamber.

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

发明人： Giacomo Ragni ,  Francesco Bongini ,  Manuele Bigi ,  Paolo Trallori ,  Massimiliano Ortiz Neri

IPC分类号： F04D27/00 ,  F04D25/06 ,  F01D25/32

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.

公开(公告)号：US10718347B2

公开(公告)日：2020-07-21

申请号：US15572207

申请日：2016-05-06

申请人： Nuovo Pignone Tecnologie Srl

发明人： Franco Sarri ,  Andrea Bernocchi ,  Franco Smorti

IPC分类号： F04D29/16 ,  F16J15/44 ,  F04D29/08 ,  F01D11/00 ,  F04D17/12 ,  F04D29/62 ,  F04D29/42 ,  F16J15/08 ,  F04D29/28 ,  F04D29/44

摘要： A turbomachinery gasket comprising at least a first curved elongated element having a coupling part configured to cooperate with a tubular assembly in order to keep the gasket in position on the tubular assembly, and an outer surface configured to seal against an outer casing provided to house the tubular assembly, the first curved elongated element comprising a first and a second free end, the first free end providing a first protruding lip and the second free end providing a second protruding lip, the first protruding lip being configured to overlap with the second protruding lip of the first curved elongated element or with a second protruding lip of a second elongated element functionally identical to the first one, so that, when the gasket is in use, a seal in that part of the gasket having said protruding lips is granted.

公开(公告)号：US10711789B2

公开(公告)日：2020-07-14

申请号：US15038108

申请日：2014-11-03

申请人： NUOVO PIGNONE SRL

发明人： Sergio Palomba ,  Dante Tommaso Rubino

IPC分类号： F04D25/06 ,  F04D17/12 ,  F04D29/051 ,  F04D29/058 ,  F04D29/44 ,  F04D29/42

摘要： A shaftless motor-compressor is disclosed, comprising a casing and at least one compressor stage arranged in the casing. Each compressor stage comprises a respective impeller arranged for rotation in the casing around a rotation axis. Each impeller is combined with an embedded electric motor housed in the casing and comprised of a motor stator and a motor rotor. The motor stator of each compressor stage circumferentially surrounds the impeller and the motor rotor, integral with the impeller. The motor rotor of each stage is arranged inside the respective motor stator.

公开(公告)号：US10697421B2

公开(公告)日：2020-06-30

申请号：US15562903

申请日：2016-04-20

申请人： Nuovo Pignone Tecnologie Srl

发明人： Luciano Mei ,  Massimo Camatti ,  Manuele Bigi

IPC分类号： F03B13/10 ,  F04D25/06 ,  F04D29/051 ,  F04D29/058 ,  F04D29/62 ,  F01D17/12 ,  F01D25/16 ,  F01D3/04

摘要： An integrated turbomachine is described, comprising: a casing; an electric motor and a driven turbomachine component housed in the casing; a rotating shaft drivingly connecting the electric motor and the driven turbomachine component; a thrust bearing and a radial bearing rotatingly supporting the shaft; an axial locking device housed inside the casing, for applying a thrust to the shaft, parallel to the rotation axis (A-A) of the shaft, and comprised of an actuator member, configured to selectively activate and/or deactivate the axial locking device.

公开(公告)号：US10677255B2

公开(公告)日：2020-06-09

申请号：US15748661

申请日：2016-07-28

申请人： Nuovo Pignone Tecnologie Srl

发明人： Leonardo Baldassarre ,  Andrea Cianti ,  Simone Amidei ,  Alberto Armenzani ,  Emanuele Rizzo

IPC分类号： F04D29/12 ,  F04D29/10 ,  F16J15/34 ,  F16J15/40 ,  F01D25/22 ,  F01D25/12 ,  F04D29/58 ,  F01D11/04 ,  F01D11/00

摘要： The shaft seal arrangement for a rotating turbomachine shaft having a rotation axis, comprises a rotor part and a stationary part. A dry gas seal is further provided, in combination with a cooling fluid volume arranged for receiving a cooling fluid and in heat exchange relationship with the dry gas seal. A venting arrangement collectively vents exhaust cooling fluid and dry sealing gas from the shaft seal arrangement.

公开(公告)号：US10669884B2

公开(公告)日：2020-06-02

申请号：US15102071

申请日：2014-12-04

申请人： Nuovo Pignone Srl

发明人： Mario Pecchioli ,  Celia Navarro-Canales ,  Jorge Omar Manon-Cantu ,  Tommaso Olivieri

IPC分类号： B05B1/04 ,  B08B3/08 ,  B08B9/093 ,  F01D25/00 ,  F04D29/32 ,  F04D29/52

摘要： Nozzle used for spraying a liquid substance towards a compressor of a gas turbine engine, comprising an elongated body having an end for ejecting the liquid substance, a conduit for the liquid substance internal to the elongated body and extending up to the end, a recess located at the end, wherein the conduit ends in the recess; wherein the recess opens towards the lateral surface of the elongated body, typically a cylindrical body, and the conduit is tangential to the bottom of the recess.