WO2021190933A1 - Ensemble palier pour arbre de transmission de turbocompresseur - Google Patents

Ensemble palier pour arbre de transmission de turbocompresseur Download PDF

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Publication number
WO2021190933A1
WO2021190933A1 PCT/EP2021/056050 EP2021056050W WO2021190933A1 WO 2021190933 A1 WO2021190933 A1 WO 2021190933A1 EP 2021056050 W EP2021056050 W EP 2021056050W WO 2021190933 A1 WO2021190933 A1 WO 2021190933A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
water
turbo compressor
arrangement
gap
Prior art date
Application number
PCT/EP2021/056050
Other languages
German (de)
English (en)
Inventor
Jochen Wessner
Martin Katz
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2021190933A1 publication Critical patent/WO2021190933A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/026—Sliding-contact bearings for exclusively rotary movement for radial load only with helical grooves in the bearing surface to generate hydrodynamic pressure, e.g. herringbone grooves
    • 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/047—Bearings hydrostatic; hydrodynamic
    • F04D29/0473—Bearings hydrostatic; hydrodynamic for radial pumps
    • 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
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
    • F04D29/104—Shaft sealings especially adapted for elastic fluid pumps the sealing fluid being other than the working fluid or being the working fluid treated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
    • F16C32/0633—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being retained in a gap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/1045—Details of supply of the liquid to the bearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact bearings
    • F16C33/741—Sealings of sliding-contact bearings by means of a fluid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04059—Evaporative processes for the cooling of a fuel cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04111—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04126—Humidifying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Definitions

  • the invention relates to a bearing arrangement for an axle shaft of a turbo compressor, which can be a component of a cathode circuit of a fuel cell stack.
  • Hydrogen-based fuel cells are the basis for a mobility concept of the future, as they only emit water and enable fast refueling times.
  • PEM fuel cells PEM: "proton exchange membrane”; proton exchange membrane
  • PEM fuel cells can be operated with air supplied to the cathode of the fuel cell with oxygen as the oxidizing agent and hydrogen supplied to the anode of the fuel cell as fuel in an electrocatalytic electrode process to provide electrical energy with a high degree of efficiency.
  • Such fuel cells are typically stacked and operated as a fuel cell stack in a fuel cell system.
  • the air fed to the cathode of the fuel cell stack is compressed by means of a turbo compressor.
  • a bearing arrangement for an axle shaft of a turbo compressor is proposed with at least one water-hydraulic bearing which is set up to support the axle shaft of the turbo compressor rotatably, the water-hydraulic bearing enclosing the axle shaft on a circumference of the axle shaft to form a bearing gap therebetween .
  • the water-hydraulic bearing is set up to allow water to flow through the bearing gap in order to mount the axle shaft in a water-hydraulic manner.
  • the bearing arrangement has at least one gas supply, which leads gas with increased pressure from the turbo compressor to both outer edges of the bearing gap in order to seal the bearing.
  • Such a turbo compressor typically has two turbo machines, which are mechanically fixedly connected to a common axle shaft and can have two such bearing arrangements.
  • the heat generated in the bearings can be dissipated with the water and the water can also be used to dissipate the heat from the electrical machine. It is particularly advantageous that a turbo compressor, which is arranged in a system of a fuel cell stack, can easily provide the water required for the water-hydraulic bearing, for example by condensation of the air flow emerging from the fuel cell stack.
  • the bearing arrangement By externally admitting gas from the turbo compressor to the respective edges of the sealing gap, the bearing arrangement can be sealed in order to prevent water from escaping at the edges of the bearing gap.
  • this leads to a particularly good sealing of the bearing arrangement, which is particularly important so that the water of the water-hydraulic bearing does not get into the turbine to cause drop impact avoid.
  • Reliable sealing and, if necessary, cooling of the hydrodynamic bearings can thus be achieved with such a bearing arrangement by applying compressed air from the turbo compressor to the edge of the bearing gap in order to prevent the liquid medium such as water from escaping at the edge of the bearing gap.
  • the winding of the stator of the electric drive of the turbo compressor can also be cooled with it.
  • This gas is advantageously inherently available in such a system with a turbo compressor and can be provided both from the compressor or compressor side and from the turbine side of the turbo compressor.
  • the water-hydraulic bearing is a sliding bearing and can be designed as a hydrostatic or hydrodynamic bearing.
  • the low-viscosity medium such as water
  • the risk of rust formation with water as a medium can be prevented by coating the axle shaft in the area of the bearing gap.
  • the bearing arrangement has at least one channel for supplying air from the turbo compressor to the two outer edges of the bearing gap.
  • compressed air from the compressor part or the turbine part of the turbo compressor can be guided to the outer edges of the bearing gap of the respective hydrodynamic bearing.
  • the channel can be guided both inside the bearing shell and along the axle shaft in order to guide the compressed air from the compressor part or from the turbine part to the respective hydrodynamic bearing.
  • the bearing has at least one supply opening in order to fluidically connect the bearing gap to a water tank in order to provide water for the bearing gap.
  • the bearing with the bearing arrangement with the water-hydraulic bearing can be rotatably supported.
  • a uniform distribution of water in the bearing gap can be achieved in order to optimize the sliding properties and the load-bearing capacity of the bearing.
  • the bearing has at least two drainage openings for draining water from the bearing gap.
  • the flow of the water through the bearing gap can be optimized in order to adapt the sliding properties and the load-bearing capacity of the bearing to the requirements accordingly.
  • the water-hydraulic bearing is a hydrodynamic bearing and is set up to suck in water for the bearing gap itself.
  • the hydrodynamic plain bearing is a plain bearing in which the lubricant pressure is automatically generated when the bearing is in operation at the point where the force is transmitted between the two bearing parts.
  • the lubrication gap is wedge-shaped at this point (lubrication wedge), so that higher pressure arises in the lubricant carried by the surface of the moving bearing part into the constriction, or the power is transmitted via an interposed lubricant film.
  • the axle shaft can be arranged in such a way that it can assume an eccentric position with respect to the bearing.
  • a hydrodynamic bearing does not require any externally applied water pressure, since it can suck in the water from the tank on its own.
  • hydrostatic plain bearings With hydrostatic plain bearings, lubricant is supplied to the power-transmitting point by an external pump and under the required pressure. Since the pump can work permanently, there is also lubricant friction at the beginning and at the end of bearing operation (during start-up and coasting down). The pressure that is required for highly loaded bearings and that occurs in hydrodynamic plain bearings, however, would not be easy to produce with a pump. Highly loaded hydrodynamic plain bearings are occasionally also equipped with a pump for starting up and coasting down.
  • water-hydraulic bearing is designed as a hydrostatic bearing, such a pump builds up the necessary pressure in the bearing gap.
  • a pump can be used, for example, for low-wear start-up of the turbo compressor, because an initial pressure can be provided with the pump.
  • the bearing arrangement has an axle shaft which is set up to form a centrifugal seal together with the bearing arrangement.
  • the axle shaft can have structures on its circumference which, due to the centrifugal force, transport the water into the drainage opening of the hydrodynamic bearing and thus improve the tightness of the hydrodynamic bearing.
  • the water-hydraulic bearing is formed in a bearing shell which is set up to be received in a form-fitting manner by a bearing plate of the turbo compressor.
  • Such a bearing shell can be arranged on a circumference of the axle shaft and thus ensure economical production of a turbo compressor with a hydrodynamic bearing.
  • Such a bearing shell can be designed in the form of a bushing, guided over the axle shaft and introduced into the bearing plate.
  • the bearing arrangement has a water tank and a pump, and is set up to pump water from the water tank into the bearing gap via the supply opening of the bearing.
  • a hydrostatic bearing can be operated or a hydrodynamic bearing can be approached due to the water pressure thus achieved.
  • the water flowing out of the bearing arrangement is used to humidify air which is supplied to a cathode of a fuel cell system by means of the turbo compressor.
  • the water can be fed back to the fuel cell system after it has passed the water-dynamic bearing of the bearing arrangement and / or has possibly also flowed through a cooling water circuit of the turbo compressor.
  • the water flowing out of the bearing arrangement is used to cool components of a fuel cell system.
  • the water can also be used for this.
  • the water for the hydrodynamic bearing comprises condensed water of a fuel cell system.
  • such a fuel cell system can provide a water separator, in particular at the exit of the cathode side of the fuel cell stack, wherein the separated water of the water separator can then be fed to a water tank.
  • the water separator can be set up both to separate droplet-shaped water from the cathode gas and to condense gaseous water.
  • the water separator can in particular also be designed as a condenser or as a combination of water separator and condenser.
  • the term water separator thus includes both the term water separator per se and the term condenser.
  • a water separator designed in this way, the product water of the fuel cell stack operated at different operating points can be separated.
  • the emerging cathode gas is not saturated with water, is completely saturated and also if it also contains water droplets, for example in the form of mist or water already condensed elsewhere in the system, this water can be separated out.
  • Such a water separator can have a cyclone and / or a condenser.
  • turbo compressor being a component of a fuel cell system. Since in such a fuel cell system, as described above, the water is generated during operation, a turbo compressor mounted in this way can be used particularly advantageously here.
  • turbo compressor with a bearing arrangement as described above is proposed, the turbo compressor having a liquid cooling circuit, and the water flowing into and / or out of the bearing gap is passed through the liquid cooling circuit to heat the electrical machine of the turbo compressor to dissipate.
  • the water required for the hydraulic storage can be guided through the thermally highly stressed components of the e-machine on the way to the storage point and cool them.
  • the drive motor, whose components must be cooled, is located between the bearing points.
  • the water required for the hydraulic storage can be guided through the thermally highly stressed components of the e-machine on the way to the storage point and cool them.
  • a cathode circuit of a fuel cell stack with a turbo compressor described above and a humidifier for humidifying the cathode gas is proposed, the cathode circuit being set up to supply the water flowing out of the storage arrangement to the humidifier.
  • the air mass flow that the compressor of the turbo compressor delivers must be humidified and cooled.
  • the water emerging from the water-hydraulic bearing can also take on this task.
  • the cathode gas that is fed to the cathode side of the fuel cell stack has an oxidizing agent for the electrocatalytic reaction of the fuel cells in the fuel cell stack, wherein the oxidizing agent can in particular include oxygen or air.
  • the water separator is set up to receive a gas flow from an electrode chamber of the fuel cell stack and to separate water from the gas flow when the gas flow is passed through the water separator, the gas flow carrying product water with it from an electrode chamber of the fuel cell stack.
  • a mobile platform has a turbo compressor with a bearing arrangement as described above.
  • a mobile platform can be an at least partially automated system that is mobile and / or a driver assistance system.
  • An example can be an at least partially automated vehicle or a vehicle with a driver assistance system. That is, in this context, an at least partially automated system includes a mobile platform with regard to an at least partially automated functionality, but a mobile platform also includes vehicles and other mobile machines including driver assistance systems. Each of these systems can be a fully or partially autonomous system.
  • Figure 1 shows a bearing arrangement for an axle shaft of a turbo compressor.
  • FIG. 1 outlines a bearing arrangement 100 for an axle shaft 120 of a turbo compressor.
  • the common axle shaft 120 of the turbo compressor is supported by two such bearing arrangements 100 with water-hydraulic bearings 110.
  • An electric drive motor of the turbo compressor is arranged between the water-hydraulic bearings 110, the components of which generate heat during operation that has to be dissipated.
  • the turbo compressor is only with its copper winding 140 in a potting compound, an iron sheet 144 of the motor, the stator receptacle 146, ie. H. the cooling sleeve, the motor housing 150 with cooling openings and the end shield 130 indicated.
  • the water-hydraulic bearing 110 of the bearing arrangement 100 is designed to rotatably support the axle shaft 120 of the turbo compressor, the water-hydraulic bearing 110 enclosing the axle shaft 120 on a circumference of the axle shaft 120 in order to form a bearing gap 114 therebetween.
  • the water-hydraulic bearing 110 is set up to allow water 116, which is supplied to the bearing 110 through a channel 115, to flow through the bearing gap 114 in order to mount the axle shaft 120 in a water-hydraulic manner.
  • the channel 115 can be connected to a water tank via a fluid-permeable connecting line.
  • the Bearing arrangement 100 can be provided in the connection line to the tank, a pump which pumps the water into the bearing gap 114.
  • a pump which pumps the water into the bearing gap 114.
  • such a pump can be provided in the connection line to the tank in order to build up a water pressure in the bearing gap 114 in order to start the turbo compressor.
  • the bearing arrangement 100 has at least one gas supply 142, 143, 162, 163, which leads gas at increased pressure from the turbo compressor to both outer edges of the bearing gap 114 to seal the water-hydraulic bearing 110.
  • the end shield 130 can have at least one air duct 143 which is formed in the end shield 130 in addition to an air gap 142 around the stator of the electric drive of the turbo compressor.
  • the gas from the turbo compressor can also be used to air-cool the electric drive of the turbo compressor.
  • the water-hydraulic bearing 110 is set up with two outflow openings 112 in the area of the bearing gap 114 to allow the water 116 to flow out of the bearing gap 114 and the water 116 can be drained from the turbo compressor via an outflow channel 118, which can be formed in the bearing shell 130 .
  • This water 116 which is passed through the bearing gap 114, can be fed either to a cathode air flow of a fuel cell system and / or to a liquid cooling circuit of the turbo compressor.
  • this water 116 can be fed to a humidifier of a system for operating a fuel cell stack, which is arranged in the air feed for the cathode side of the fuel cell stack.
  • the water used for the water-hydraulic bearings which is taken from a water tank, can have condensed water from an air mass flow of an outlet connection on a cathode side of the fuel cell stack.
  • a condenser can be arranged in this air mass flow and this condensed water can be conducted into the water tank via a fluid line.
  • the water-hydraulic bearing 110 can be set up as a hydrodynamic bearing 110 to suck in the water 116 via the channel 115 in the bearing plate 130 itself.
  • the axle shaft 120 has structures 122 on its circumference which, together with the bearing arrangement, form a centrifugal seal for the bearing gap 114.
  • the water-hydraulic bearing 110 is formed in a bearing shell which is received in a form-fitting manner by the bearing plate 130.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Fuel Cell (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Est divulgué un ensemble palier pour un arbre de transmission d'un turbocompresseur, comprenant au moins un palier hydraulique à eau destiné à monter en rotation l'arbre de transmission du turbocompresseur, ledit palier hydraulique à eau entourant l'arbre de transmission sur une circonférence de l'arbre de transmission de telle sorte qu'un espace de palier est formé entre ceux-ci ; et le palier hydraulique à eau étant conçu pour laisser s'écouler l'eau dans l'espace de palier de manière à monter de manière hydraulique l'arbre de transmission ; et comprenant au moins une conduite d'alimentation en gaz qui conduit le gaz sous pression depuis le turbocompresseur vers les deux bords extérieurs de l'espace de palier afin d'assurer l'étanchéité du palier.
PCT/EP2021/056050 2020-03-27 2021-03-10 Ensemble palier pour arbre de transmission de turbocompresseur WO2021190933A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020204016.8 2020-03-27
DE102020204016.8A DE102020204016A1 (de) 2020-03-27 2020-03-27 Lageranordnung für eine Achswelle eines Turbokompressors

Publications (1)

Publication Number Publication Date
WO2021190933A1 true WO2021190933A1 (fr) 2021-09-30

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PCT/EP2021/056050 WO2021190933A1 (fr) 2020-03-27 2021-03-10 Ensemble palier pour arbre de transmission de turbocompresseur

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WO (1) WO2021190933A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023179917A1 (fr) * 2022-03-25 2023-09-28 Nuovo Pignone Tecnologie - S.R.L. Système de compression avec récupération de fuite de gaz et piles à combustible, et procédé

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1321680A2 (fr) * 2001-12-22 2003-06-25 Miscel Oy Turbomachine
JP2005163641A (ja) * 2003-12-03 2005-06-23 Koyo Seiko Co Ltd ターボチャージャ
WO2007128018A2 (fr) * 2006-05-09 2007-11-15 Avl List Gmbh Système de piles à combustible
EP2600015A1 (fr) * 2011-12-01 2013-06-05 Robert Bosch Gmbh Turbocompresseur, système de piles à combustible

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1321680A2 (fr) * 2001-12-22 2003-06-25 Miscel Oy Turbomachine
JP2005163641A (ja) * 2003-12-03 2005-06-23 Koyo Seiko Co Ltd ターボチャージャ
WO2007128018A2 (fr) * 2006-05-09 2007-11-15 Avl List Gmbh Système de piles à combustible
EP2600015A1 (fr) * 2011-12-01 2013-06-05 Robert Bosch Gmbh Turbocompresseur, système de piles à combustible

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Publication number Publication date
DE102020204016A1 (de) 2021-09-30

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