WO2008076630A1 - Dispositif d'assistance à l'intensification de turbocompresseur - Google Patents

Dispositif d'assistance à l'intensification de turbocompresseur Download PDF

Info

Publication number
WO2008076630A1
WO2008076630A1 PCT/US2007/086377 US2007086377W WO2008076630A1 WO 2008076630 A1 WO2008076630 A1 WO 2008076630A1 US 2007086377 W US2007086377 W US 2007086377W WO 2008076630 A1 WO2008076630 A1 WO 2008076630A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
compressor
bearing support
housing
product
Prior art date
Application number
PCT/US2007/086377
Other languages
English (en)
Inventor
Timm Kiener
John Shutty
Original Assignee
Borgwarner Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Borgwarner Inc. filed Critical Borgwarner Inc.
Publication of WO2008076630A1 publication Critical patent/WO2008076630A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
    • F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F01D25/162—Bearing supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F01D25/166—Sliding contact bearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/025—Fixing blade carrying members on shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B1/00—Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on blades or like rotors, e.g. Pelton wheels; Parts or details peculiar thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/057—Bearings hydrostatic; hydrodynamic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/059—Roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/11—Kind or type liquid, i.e. incompressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/40—Application in turbochargers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/24—Rotors for turbines
    • F05B2240/241—Rotors for turbines of impulse type
    • F05B2240/2411—Pelton type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/50—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/57—Seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/11—Kind or type liquid, i.e. incompressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/40—Application in turbochargers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/50—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/55—Seals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Definitions

  • the field to which the disclosure generally relates includes turbocharger boost assist devices.
  • Turbocharger boost assist devices may be utilized to assist in the delivery of air to a combustion engine.
  • turbocharger boost assist devices are utilized in combination with a turbocharger to reduce or eliminate turbocharger lag.
  • These turbocharger boost assist devices include a shaft which may be subject to forces including torsion and bending frequencies.
  • One embodiment of the invention includes a product comprising: a compressor housing constructed and arranged to receive a compressor wheel and a portion of a shaft operatively connected to the compressor wheel to rotate the compressor wheel, the housing including a second bearing support constructed and arranged to receive a portion of the shaft and to facilitate rotational movement of the shaft.
  • One embodiment of the invention includes a shaft, a compressor connected to the shaft, a first bearing support and a second bearing support each receiving a respective portion of the shaft to facilitate rotational movement of the shaft, and wherein the first bearing support is positioned on a first side of the compressor and wherein the second bearing support is positioned on a second side of the compressor.
  • One embodiment of the invention includes a product comprising: a turbocharger boost assist device comprising a shaft, a compressor, a first bearing support, and a second bearing support, and wherein the shaft includes a first end and a second end, the compressor connected to the shaft between the first end and second end to be driven by the shaft, the first bearing support and second bearing support each receiving a respective portion of the shaft to facilitate rotational movement of the shaft, the first bearing support being positioned on a first side of the compressor and the second bearing support being positioned on a second side of the compressor to prevent the shaft from being damaged by force acting thereon during the operation of the turbocharger boost assist device.
  • One embodiment of the invention includes a product comprising a shaft, a turbine housing, a turbine wheel, a compressor wheel, a first bearing support, wherein the shaft includes a first end and a second end, and wherein the turbine wheel is operatively connected to the shaft at or near the first end to drive the shaft, and wherein the compressor is connected to the shaft at a location near the second end of the shaft, and wherein the turbine housing is constructed and arranged to receive the turbine wheel and a portion of the shaft, and wherein the first bearing support is constructed and arranged to support the shaft for rotational movement and wherein the first bearing support is positioned on a first side of the compressor wheel; a compressor housing constructed and arranged to receive the compressor wheel and a portion of a shaft operatively connected to the compressor wheel to rotate the compressor wheel, the compressor housing comprising a second bearing support constructed and arranged to receive a portion of the shaft and to facilitate rotational movement of the shaft, wherein the second bearing support is positioned on a second side of the compressor wheel and constructed and
  • FIG. 1 is a sectional view of a turbocharger boost assist device according to one embodiment of the invention.
  • FIG. 2 is a sectional view of a turbocharger boost assist device according to another embodiment.
  • FIG. 3 is an enlarged, sectional view of a portion of a turbocharger boost assist device according to one embodiment.
  • FIG. 4 is an enlarged, sectional view of a portion of a turbocharger boost assist device according to one embodiment of the invention.
  • FIG. 5 is a top view of a compressor housing including a second bearing support according to one embodiment of the invention.
  • FIG. 6 is a sectional view illustrating a nozzle ring, turbine wheel arrangement according to one embodiment of the invention.
  • FIG. 7 is an illustration of the braking effect on a turbine wheel caused by hydraulic swirl.
  • FIG. 8 illustrates a piston ring useful in one embodiment of the invention.
  • FIG. 9 illustrates another type of piston ring combination useful in one embodiment of the invention.
  • one embodiment of the invention includes a product 10 which may include one or more of the following components.
  • the product 10 may be, but is not limited to, a turbocharger boost assist device which may include a shaft 12 that is received in a boost assist housing 14 which may include a turbine housing 16 and a compressor housing 18.
  • This shaft 12 may have a first end 20 and an opposite second end 22.
  • a turbine wheel 24 may be connected to the shaft 12 at or near the first end 20 of drive shaft 12.
  • a compressor wheel 26 is operatively connected to the shaft 12 at a location spaced a distance from the first end 22.
  • the turbine wheel 24, shaft 12, and compressor wheel 26 are operatively connected so that a fluid such as air, hydraulic fluid, or other material may be utilized to drive the turbine and consequently the shaft 12 and connected compressor wheel 26.
  • a turbine insert 28 may be received in and carried by the turbine housing 18. The turbine insert 28 is positioned to surround a portion of the shaft 12 near the first end 20.
  • a nozzle ring 30 may be positioned to surround the turbine wheel 24.
  • the nozzle ring 30 may include a plurality of nozzle passages formed therein constructed and arranged to inject hydraulic fluid onto blades of the turbine wheel as will be described in further detail hereafter.
  • the turbine wheel 24 may be secured to the shaft 12 by a turbine screw 32.
  • the turbine housing 16 may have a central bore 33 there through constructed and arranged to allow hydraulic fluid to flow out of the turbine housing 16 after the hydraulic fluid has struck the blades 94 of the turbine wheel 24.
  • a swirl stopper 34 may be received in the bore 33 in the turbine housing 16 and positioned to stop hydraulic fluid from swirling in an opposite direction of rotation of the turbine wheel 24 as will be described in greater detail hereafter.
  • the stopper 34 may include a wall positioned near an interior location of the turbine wheel 24 to at least impede the swirling action of the hydraulic fluid.
  • the stopper 34 may include a hole 36 formed there through to allow the passage of hydraulic fluid.
  • a turbine housing lid 38 is connected to a first face 40 of the turbine housing 16, for example, by a screw 88 or other means.
  • the turbine housing lid 38 includes a central bore 42 and may be constructed and arranged to receive and support a portion of the stopper 34. As shown in FIG. 2, in one embodiment of the invention, a stopper 34 without a hole is provided to prevent hydraulic fluid swirl adjacent the turbine wheel 24.
  • a first bearing support 44 is provided and is constructed and arranged to support the shaft 12 and allow for rotational movement thereof.
  • the first bearing support 44 receives the shaft and is located at a position spaced a distance from the first end 20 of the shaft 12 and is positioned on a first side of the compressor wheel 26.
  • the first bearing support 44 includes a bearing housing 46 which may be a part of or may be carried by the turbine housing 16.
  • a plurality of ball bearings 48 may be received in the bearing housing 46 for rotational movement therein.
  • a sealed bushing 50 may be positioned adjacent the ball bearings 48.
  • the compressor housing 18 may include an inlet opening 52 constructed and arranged to allow air to enter the compressor housing 18 and be compressed by the compressor wheel 26 and to exit through an outlet opening 54 formed in the compressor housing 18.
  • the inlet opening 52 may be provided in a tubular projection 62 of the compressor housing 18.
  • the outlet opening 54 may be provided in a second tubular projection 63 of the compressor housing 18.
  • a second bearing support 56 is provided to support the shaft 12 and allow for rotational movement of the shaft 12.
  • the second bearing support 56 is positioned along the shaft 12 at a location at or near the second end 22 and on a second side of the compressor wheel 26.
  • the second bearing support 56 is a part of the compressor housing 18.
  • the second bearing support 56 includes a tubular portion received in the throat of a tubular projection 62 of the compressor housing 18 and is supported in position by wings 60 extending from an inner wall 64 of the tubular projection 62.
  • the second bearing support 56 carries a plurality of ball bearings 66 to facilitate rotational movement of a shaft 12.
  • the compressor wheel 26 may be held in position by a compressor wheel nut 68 which may be threaded onto a shaft 12.
  • a spring 70 such as a wave washer spring may be interposed between the compressor wheel 26 and a portion of the bearing housing 58 holding the ball bearings 66.
  • the ball bearings 66 may have an associated spacer 72.
  • a plurality of o-rings 74, 76, 78, 79, 80, 82 and 84 may be provided at a plurality of locations.
  • a plurality of piston rings 86 may be provided about the shaft 12.
  • Various components of the product 10 may be held together by a plurality of bolts or screws 88 and nuts 90.
  • the piston ring 86 includes a first end 88 and a second end 90 in overlapping positions with a space between to allow for the flow of hydraulic fluid.
  • a set of stacked piston rings 86 with each ring 86 including a first end 88 spaced from a second end 90 to provide a passage for hydraulic fluid.
  • an end cap 92 for the compressor housing 18 may be provided and may be threaded to the wings 60.
  • a spacer 72 may be provided between the end cap 92 and the second bearing support 56.
  • a nozzle ring 96 having a plurality of nozzle passages 98 therein may be provided for directing hydraulic fluid onto the blades 94 of the turbine wheel 24.
  • high pressure hydraulic fluid for example from an accumulator, may be directed onto blades 94 of the turbine wheel 24 for example, along a direction of line A causing the turbine wheel 24 to rotate causing the position of the blade 94 to move in a direction indicated by line B.
  • the hydraulic fluid is reflected off of the blade 94 in a direction indicated by line C and begins to swirl in a direction by line D. This produces a breaking action on the turbine wheel 24.
  • stoppers 34 may be provided.
  • the product 10 is a turbocharger boost assist device that may be positioned in the air intake side of a combustion engine breathing system at a location upstream or down stream of a turbocharger.

Abstract

L'invention concerne, dans un mode de réalisation, un arbre, un compresseur raccordé à l'arbre, un premier support de palier et un second support de palier recevant chacun une portion respective de l'arbre pour faciliter un mouvement de rotation de l'arbre, et dans lequel le premier support de palier est positionné sur un premier côté du compresseur et dans lequel le second support de palier est positionné sur un second côté du compresseur. Un autre mode de réalisation de l'invention comprend un dispositif d'assistance à l'intensification d'un turbocompresseur comprenant un arbre, un compresseur, un premier support de palier et un second support de palier, et dans lequel l'arbre comprend une première extrémité et une seconde extrémité, le compresseur étant raccordé à l'arbre entre la première extrémité et une seconde extrémité pour être entraîné par l'arbre, le premier support de palier et le second support de palier recevant chacun une portion respective de l'arbre pour faciliter un mouvement de rotation de l'arbre, le premier support de palier étant positionné sur un premier côté du compresseur et dans lequel le second support de palier est positionné sur un second côté du compresseur pour empêcher l'endommagement de l'arbre par des forces agissant dessus pendant le fonctionnement du dispositif d'assistance à l'intensification du turbocompresseur.
PCT/US2007/086377 2006-12-17 2007-12-04 Dispositif d'assistance à l'intensification de turbocompresseur WO2008076630A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US87040606P 2006-12-17 2006-12-17
US60/870,406 2006-12-17

Publications (1)

Publication Number Publication Date
WO2008076630A1 true WO2008076630A1 (fr) 2008-06-26

Family

ID=39536656

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/086377 WO2008076630A1 (fr) 2006-12-17 2007-12-04 Dispositif d'assistance à l'intensification de turbocompresseur

Country Status (1)

Country Link
WO (1) WO2008076630A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105705781A (zh) * 2013-11-14 2016-06-22 阿尔斯通再生能源技术公司 用于水力涡轮的充气系统
EP3118460A1 (fr) * 2015-07-17 2017-01-18 Panasonic Intellectual Property Management Co., Ltd. Machine turbo

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991006749A1 (fr) * 1989-10-30 1991-05-16 Allied-Signal Inc. Ensemble a roue de turbocompresseur muni de moyeu sans alesage
JP2000291408A (ja) * 1999-04-01 2000-10-17 Nippon Soken Inc 高速回転ロータのアンバランス修正方法
WO2004022926A1 (fr) * 2002-09-05 2004-03-18 Honeywell International Inc. Turbocompresseur comprenant un dispositif de tuyere variable
JP2006320143A (ja) * 2005-05-13 2006-11-24 Erumekku:Kk 電動アシスト型ターボチャージャー

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991006749A1 (fr) * 1989-10-30 1991-05-16 Allied-Signal Inc. Ensemble a roue de turbocompresseur muni de moyeu sans alesage
JP2000291408A (ja) * 1999-04-01 2000-10-17 Nippon Soken Inc 高速回転ロータのアンバランス修正方法
WO2004022926A1 (fr) * 2002-09-05 2004-03-18 Honeywell International Inc. Turbocompresseur comprenant un dispositif de tuyere variable
JP2006320143A (ja) * 2005-05-13 2006-11-24 Erumekku:Kk 電動アシスト型ターボチャージャー

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105705781A (zh) * 2013-11-14 2016-06-22 阿尔斯通再生能源技术公司 用于水力涡轮的充气系统
US10215151B2 (en) 2013-11-14 2019-02-26 Ge Renewable Technologies Aerating system for hydraulic turbine
EP3118460A1 (fr) * 2015-07-17 2017-01-18 Panasonic Intellectual Property Management Co., Ltd. Machine turbo
CN106351866A (zh) * 2015-07-17 2017-01-25 松下知识产权经营株式会社 涡轮机

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