WO2012076762A1 - Ensemble de palier pour arbre d'hydrolienne et hydrolienne comprenant un tel ensemble de palier - Google Patents
Ensemble de palier pour arbre d'hydrolienne et hydrolienne comprenant un tel ensemble de palier Download PDFInfo
- Publication number
- WO2012076762A1 WO2012076762A1 PCT/FR2010/052660 FR2010052660W WO2012076762A1 WO 2012076762 A1 WO2012076762 A1 WO 2012076762A1 FR 2010052660 W FR2010052660 W FR 2010052660W WO 2012076762 A1 WO2012076762 A1 WO 2012076762A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bearing
- bearing assembly
- base
- rotation
- elastic member
- Prior art date
Links
Classifications
-
- 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
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/06—Bearing arrangements
- F03B11/063—Arrangements for balancing axial thrust
- F03B11/066—Arrangements for balancing axial thrust in vertical axis machines
-
- 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
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/06—Bearing arrangements
-
- 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
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
-
- 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
- F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
- F16C17/14—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load specially adapted for operating in water
-
- 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
-
- 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
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
-
- 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 present invention relates to a bearing assembly for supporting a rotating turbine shaft, that is to say to take the axial forces exerted by this shaft. Furthermore, the present invention relates to a tidal turbine comprising a rotating shaft, and such a bearing assembly. In particular, the present invention can be applied to a tidal turbine installed within a flow of liquid engine that can flow in one or the other direction.
- a hydraulic turbine of the prior art generally comprises a shaft about 1 m in diameter and a bearing assembly bathed in the oil to support the rotating shaft.
- the bearing units generally comprise a fixed base, an elastic member and a bearing surface which delimits with the shaft an oil film approximately 0.5 mm thick.
- the bearing units and the oil film have the function of limiting the docking of the shaft on the bearing surfaces. These berthing are caused in particular by the assembly defects of the parts in relative movement and the geometrical defects due to the manufacturing tolerances of the parts in relative movement.
- the bearing assembly accommodates well assembly defects and geometrical defects. which are relatively weak.
- One of the aims of the present invention is to remedy these drawbacks, in particular by proposing a fast and oil-free reaction bearing assembly.
- the subject of the present invention is a bearing assembly for taking up the axial forces transmitted by a tidal turbine shaft rotating around an axis of rotation, the bearing assembly comprising a plurality of bearing units distributed around the axis of rotation. rotation axis, each bearing unit comprising:
- an elastic member having a fixed part integral with the base and a part movable generally along a main direction of the forces to be supported;
- a bearing surface adapted to define with the shaft a receiving volume of a liquid film, the bearing surface being connected to the movable portion of the elastic member.
- the bearing assembly is characterized in that the liquid film is a film of water, in that the minimum radius of the bearing surface is between 1 m and 3 m, in that the elastic member and the base enclose at least one chamber containing water, the surfaces of the elastic member and the base in contact with the water comprising a stainless material and in that the bearing assembly further comprises a plurality of conduits adapted to circulating water, each pipe being arranged to connect at least two chambers together, the pipes and chambers defining a closed circuit which extends around the axis of rotation.
- the moving part moves generally in a direction parallel to the axis of rotation and in that the or each bearing surface is perpendicular to the axis of rotation;
- a bearing surface is connected to a single moving part
- a bearing surface is connected to several moving parts respectively belonging to several bearing units;
- the bearing surface comprises a material of hardness greater than 800 Hv such as a ceramic material
- the base comprises a generally annular plate and in that each pipe is formed by holes extending into the base;
- the elastic member forms an elastically deformable membrane
- each chamber comprises a portion of generally toroidal shape with circular section or not;
- the elastic member comprises a thin plate
- the elastic member comprises a thick piece
- At least one bearing unit comprises a partially spherical projection so as to form a point connection between the elastic member and the base;
- the bearing assembly comprises between 10 and 20 bearing units, preferably 16;
- the subject of the present invention is a tidal turbine comprising a turbine equipped with a shaft movable in rotation about an axis of rotation, the tidal turbine being characterized in that it comprises at least one bearing assembly such that described above.
- the water film has a thickness less than 0.10 mm, preferably less than 0.06 mm;
- the tidal turbine comprises two bearing assemblies as described above, the two bearing assemblies being coaxial with the axis of rotation, the two bearing assemblies being located at a distance from one another so as to define a housing for a collar of the tree.
- FIG. 1 A is an axial half-section of a tidal turbine according to the invention and comprising a bearing assembly according to a first embodiment of the invention
- Figure 1 B is a complete section of the tidal turbine of Figure 1 A;
- FIG. 2 is an enlarged view of the detail in Figure 1A
- FIG. 3 is a view on a larger scale of the detail I II in FIG. 1A;
- FIG. 4 is a cross section, along the line IV - IV in Figure 3;
- FIG. 5 is a cross section along the line V - V in Figure 4;
- FIG. 6 is a schematic view illustrating a first state of the bearing assembly of FIGS. 1A to 5;
- FIG. 7 is a schematic view similar to FIG. 6 illustrating a second state of the bearing assembly of FIGS. 1A to 5;
- FIG. 8 is a view similar to Figure 2 of a bearing element according to a second embodiment of the invention.
- FIG. 9 is a view similar to FIG. 3 of the bearing element of FIG. 8.
- FIGS. 1A and 1B show a tidal turbine 1 comprising a belt 2, front guides 4, vanes 7 and a bulb 10 also called by the English word "hub".
- the belt 2 is of generally annular shape and is connected to the ground by a gravity base, a structure consisting of a sole and several posts.
- the bulb 10 is fixed to the belt 2 via the fore-steers 4.
- the bulb 10 comprises a shaft 12, an electric power generator 14 and a support 16.
- the shaft 12 is rotatable about a rotation axis X-X '.
- the shaft 12 comprises a flange 13 which is integral and integral with the shaft 12.
- the radial surfaces 13.1 and 13.2 of the collar 1 3 are flat crown-shaped.
- the blades 7 are fixed at one end of the shaft 12.
- the vanes 7 are rotated about the axis XX 'by a stream of water flowing in the belt 2, in one direction by an arrow 5, in the other direction indicated by an arrow 6.
- the front-guides 4 and the vanes 7 extend generally in radial directions and they are distributed around the axis X-X '.
- the shaft 12, the bulb 10, the generator 14, the support 16 and the belt 2 each have a symmetry of revolution about the axis X-X '.
- the term "axial” qualifies either a direction parallel to the axis of rotation X-X ', or a surface generally perpendicular to the axis of rotation X-X'.
- the term “radial” qualifies either a direction perpendicular to the axis of rotation X-X ', or a surface perpendicular to such a radial direction.
- the term “circumferential” qualifies a tangential direction C-C and non-secant to the axis of rotation X-X '.
- the bulb 10 also comprises two bearing assemblies 8 and 9 for supporting the shaft 12, precisely to take up the axial forces.
- the bearing assembly 8 is referred to as “abutment” and the bearing assembly 8 is referred to as “abutment”.
- the bearing assemblies 8 and 9 are coaxial with the X-X 'axis.
- the bearing assemblies 8 and 9 are located at a distance from each other so as to define a housing for the flange 13.
- the description of the bearing assembly 8 given below may be transposed to the bearing assembly 9.
- the bearing assembly 8 comprises a plurality of bearing units 20, 20.1, 20.2 and equivalents distributed about the X-X 'axis.
- the bearing assembly 8 comprises 1 6 bearing units 20, 20.1, 20.2 and the like.
- Each bearing unit 20, 20.1, 20.2 and the like comprises a base 70, an elastic member 50 and a bearing surface 31.
- the base 70 is fixed to the support 16, by screwing, welding, embedding or other equivalent means.
- the resilient member 50 forms an elastically deformable membrane which has a fixed portion 58 integral with the base 70 and a movable portion 54 generally in an axial direction X50.
- the direction axial X50 is the main direction of the forces to be supported, which are shown in Figures 6 and 7 with references F1 and F2.
- the bearing surface 31 is here in the form of a flat ring and perpendicular to the axis X-X '.
- the bearing surface 31 serves to support the shaft 12 in rotation.
- the bearing surface 31 is adapted to define with the shaft 12 a receiving volume of a liquid film.
- the film of liquid contained in this thin receiving volume can thus form a hydrodynamic bearing for the shaft 12 in rotation.
- the liquid film is a water film whose thickness E13 is less than 0.10 mm, preferably less than 0.06 mm.
- the water constituting this lubricating film can come from the stream of water driving the blades 7.
- the bearing surface 31 and the radial surface 13.1 of the flange 13 are substantially coincident and separated by a functional clearance.
- the minimum radius R31 of the bearing surface 31 is equivalent to half the diameter D12 of the shaft 12.
- the radius R31 of the bearing surface 31 is between 1 m and 3 m. So, the diameter D12 is between 2 m and 6 m.
- the bearing surface 31 and / or the radial surface 13.1 of the flange 13 comprises a material of hardness greater than 800 Hv (Vickers) such as a ceramic material, for example dichromium trioxide or chromine (Cr 2 Os). . Such a material strongly limits the wear of the bearing surface 31 and / or the radial surface 13.1. Any other material of equivalent hardness can be used instead of a ceramic.
- a material of hardness greater than 800 Hv (Vickers) such as a ceramic material, for example dichromium trioxide or chromine (Cr 2 Os).
- the elastic member 50 comprises a thin plate, for example a stainless steel sheet, having a symmetry of revolution about the axis X50.
- the thin plate makes the elastic member 50 relatively compact.
- the membrane forming the elastic member 50 thus has the overall shape of a disc.
- Its fixed part 58 is formed by the flat peripheral ring and its mobile part 54 is formed by a central disk.
- a boss 56 is formed between the fixed portion 58 and the movable portion 54 generally shaped torus section in a semicircle.
- the boss 56 allows the elastic deformation of the elastic member 50.
- the bearing surface 31 is connected to the movable portion 54 of the elastic member 50.
- the verb "bind" implies a kinematic connection or a rigid connection.
- the bearing surface 31 is defined by a shoe 30, a sole 35 of which is in plane bearing on the movable part 54.
- the shoe 30 and the sole 35 are secured by fastening means 36 comprising a stirrup and screws.
- each bearing surface 31 is bonded to a single movable portion 54.
- the bearing units 20 are independent.
- the elastic member 50 and the base 70 define a chamber 52 containing water.
- the chamber 52 comprises a portion which is generally toroidal in shape with a semicircular section as defined by the boss 56.
- the surfaces of the elastic member 50 and the base 70 in contact with the water comprise a stainless material, in which the mass or coating, in particular those surfaces that delimit the chamber 52.
- the base 70 comprises a flexible washer 76 and an O-ring 78 which are made of a resilient material such as a rubber or an elastomer.
- the washer 76 and the O-ring 78 are crushed between the fixed part 58 and the base 70 to make the chamber 52 relatively tight.
- the bearing assembly 8 further includes a plurality of conduits 74 adapted to circulate water.
- Each pipe 74 is arranged to connect at least two chambers 52.1 and 52.2 at a respective groove 72.
- Each groove 72 has a cross-section "T".
- the ducts 74 connect all the chambers 52, so that the ducts 74 and the chambers 52 define a closed circuit which extends around the axis X-X '.
- the verb "to connect” implies a communication of liquid, in particular water.
- the base 70 is formed in particular by a base plate of generally annular shape.
- Each pipe 74 is formed by two blind, converging and oblique holes which extend in the base 70.
- the water can thus flow in the pipes 74 and between two successive chambers 52.1 and 52.2 in the circumferential direction CC.
- the hydraulic pressure can be transmitted by the lines 74 between the chambers 52, which tends to balance the water pressures prevailing in the rooms 52.
- the collar 1 3 exerts pressure forces, symbolized by arrows F1 in FIG. 6, on the bearing surface 31 1 of the shoe 30.1 and via of the water film E1 3.
- the pressure is not uniformly distributed between the bearing units 52.
- the sole 35.1 thus bears on the corresponding moving part 54.
- This moving part 54 approaches the base 70 and compresses the water contained in the chamber 52.1. A flow of water then flows from the chamber 52.1 to the adjacent chambers including the chamber 52.2, which is symbolized by an arrow L74 in FIG.
- FIGS. 1A to 7 show a bearing assembly 108 according to a second embodiment of the invention.
- the bearing assembly 1 08 is similar to the bearing assembly 8.
- the description of the bearing assembly 8 given above in connection with FIGS. 1A to 7 can be transposed to the bearing assembly 1 08 Figures 8 and 9, with the exception of the differences mentioned below.
- An entity of the bearing assembly 108 that is identical or corresponding to an entity of the bearing assembly 8 has the same numerical reference increased by 100.
- a bearing assembly 108 a film thickness E1 water, a fixed support 1 16, a bearing unit 1 20, a shoe 130, a bearing surface 131, fixing means 36, a minimum radius R131, an elastic member 150, an axis X150, a chamber 1 52 , a moving part 54, a boss 156, a fixed part 1 58, a base 170, a groove 172 and an O-ring 178.
- the bearing assembly 108 differs from the bearing assembly 8 in that the elastic member 150 comprises a thick part forming the mobile part 154 and the fixed part 1 58 connected by the boss 156.
- the movable part 154 and the part fixed 158 are therefore thicker respectively than the movable portion 54 and the fixed portion 58. This allows, if necessary, to withstand larger loads.
- the elastic member 150 and the base 170 are made of or coated with a stainless material, so that the surfaces of the elastic member 150 and the base 170 in contact with the water comprise a stainless material to resist corrosion by the water contained in the chamber 152.
- the bearing assembly 108 differs from the bearing assembly 8 in that at least one bearing unit 120 comprises an abutment 155 secured to the movable part 1 54.
- the stop 155 comprises a portion 157 partially spherical projection.
- the projection 157 forms a spherical point connection between the elastic member 150 and the base 1 70.
- the stop 1 55 and the projection 157 serve to limit the stroke of the movable portion 154 to limit the mechanical stresses experienced by the boss 156 during its elastic deformations.
- the base 170 includes only the O-ring 178 to make the chamber 152 relatively tight, but no washer type 76. Indeed, the sealing of the chamber 1 52 is also ensured by the clamping of the fixed part 174 on the base 170 by means of screws and by an adjusted machining of the surfaces in contact with the fixed part 174 and the base 170.
- the flange can be made in two parts, for example two half-collars juxtaposed axially and / or reported on the shaft;
- the bearing assembly comprises between 10 and 20 type 20 bearing units,
- the same bearing surface is connected to several moving parts belonging respectively to several bearing units; in other words, the pad is common to all the elastic members; in particular, the same bearing surface is connected to all the moving parts.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Support Of The Bearing (AREA)
- Sliding-Contact Bearings (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Hydraulic Turbines (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FR2010/052660 WO2012076762A1 (fr) | 2010-12-09 | 2010-12-09 | Ensemble de palier pour arbre d'hydrolienne et hydrolienne comprenant un tel ensemble de palier |
KR1020137017853A KR101514226B1 (ko) | 2010-12-09 | 2010-12-09 | 선박용 터빈 샤프트를 위한 베어링 조립체, 및 이와 같은 베어링 조립체를 구비하는 선박용 터빈 |
US13/992,402 US8998492B2 (en) | 2010-12-09 | 2010-12-09 | Bearing assembly for a marine turbine shaft, and marine turbine including such a bearing assembly |
CA2820762A CA2820762C (fr) | 2010-12-09 | 2010-12-09 | Ensemble de palier pour arbre d'hydrolienne et hydrolienne comprenant un tel ensemble de palier |
CN201080071047.7A CN103299066B (zh) | 2010-12-09 | 2010-12-09 | 船用涡轮机轴的轴承组件及包含该轴承组件的船用涡轮机 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FR2010/052660 WO2012076762A1 (fr) | 2010-12-09 | 2010-12-09 | Ensemble de palier pour arbre d'hydrolienne et hydrolienne comprenant un tel ensemble de palier |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012076762A1 true WO2012076762A1 (fr) | 2012-06-14 |
Family
ID=44454557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2010/052660 WO2012076762A1 (fr) | 2010-12-09 | 2010-12-09 | Ensemble de palier pour arbre d'hydrolienne et hydrolienne comprenant un tel ensemble de palier |
Country Status (5)
Country | Link |
---|---|
US (1) | US8998492B2 (fr) |
KR (1) | KR101514226B1 (fr) |
CN (1) | CN103299066B (fr) |
CA (1) | CA2820762C (fr) |
WO (1) | WO2012076762A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10066505B2 (en) | 2016-04-18 | 2018-09-04 | General Electric Company | Fluid-filled damper for gas bearing assembly |
US10914195B2 (en) | 2016-04-18 | 2021-02-09 | General Electric Company | Rotary machine with gas bearings |
US10036279B2 (en) | 2016-04-18 | 2018-07-31 | General Electric Company | Thrust bearing |
US11193385B2 (en) | 2016-04-18 | 2021-12-07 | General Electric Company | Gas bearing seal |
US9746029B1 (en) | 2016-04-18 | 2017-08-29 | General Electric Company | Bearing |
US10001166B2 (en) | 2016-04-18 | 2018-06-19 | General Electric Company | Gas distribution labyrinth for bearing pad |
US9951811B2 (en) | 2016-04-18 | 2018-04-24 | General Electric Company | Bearing |
EP3760886A1 (fr) * | 2019-07-03 | 2021-01-06 | Siemens Aktiengesellschaft | Ensemble de palier pour palier de butée axiale |
CN110388380A (zh) * | 2019-08-26 | 2019-10-29 | 李堃尧 | 一种涡轮钻具自适应滚滑复合止推轴承 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2304819A1 (fr) * | 1975-03-20 | 1976-10-15 | Glacier Metal Co Ltd | Palier de butee |
EP0511772A2 (fr) * | 1991-05-01 | 1992-11-04 | Westinghouse Electric Corporation | Ensemble de palier et propulseur immersé comportant le même |
US20060063442A1 (en) * | 2004-09-23 | 2006-03-23 | Taylor Douglas L | Pod propulsion system with rim-mounted bearings |
DE102008023050A1 (de) * | 2008-05-09 | 2009-11-12 | Voith Patent Gmbh | Verfahren und Vorrichtung zum Betrieb eines Gleitlagers |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1498241A (en) * | 1975-07-17 | 1978-01-18 | Inst Burovoi Tekhnik | Well-drilling turbodrill |
US4544285A (en) * | 1983-04-18 | 1985-10-01 | The United States Of America As Represented By The Secretary Of The Navy | Fluid equalized tilting pad thrust bearings |
US5078628A (en) * | 1989-06-23 | 1992-01-07 | Newport News Shipbuilding And Dry Dock Company | Marine propulsor |
US5185545A (en) * | 1990-08-23 | 1993-02-09 | Westinghouse Electric Corp. | Dual propeller shock resistant submersible propulsor unit |
US5220231A (en) * | 1990-08-23 | 1993-06-15 | Westinghouse Electric Corp. | Integral motor propulsor unit for water vehicles |
CN101576044A (zh) * | 2009-06-19 | 2009-11-11 | 天津市天发重型水电设备制造有限公司 | 立式水轮机主轴抛物线瓦导轴承 |
-
2010
- 2010-12-09 WO PCT/FR2010/052660 patent/WO2012076762A1/fr active Application Filing
- 2010-12-09 CN CN201080071047.7A patent/CN103299066B/zh not_active Expired - Fee Related
- 2010-12-09 KR KR1020137017853A patent/KR101514226B1/ko not_active IP Right Cessation
- 2010-12-09 US US13/992,402 patent/US8998492B2/en not_active Expired - Fee Related
- 2010-12-09 CA CA2820762A patent/CA2820762C/fr not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2304819A1 (fr) * | 1975-03-20 | 1976-10-15 | Glacier Metal Co Ltd | Palier de butee |
EP0511772A2 (fr) * | 1991-05-01 | 1992-11-04 | Westinghouse Electric Corporation | Ensemble de palier et propulseur immersé comportant le même |
US20060063442A1 (en) * | 2004-09-23 | 2006-03-23 | Taylor Douglas L | Pod propulsion system with rim-mounted bearings |
DE102008023050A1 (de) * | 2008-05-09 | 2009-11-12 | Voith Patent Gmbh | Verfahren und Vorrichtung zum Betrieb eines Gleitlagers |
Also Published As
Publication number | Publication date |
---|---|
CN103299066A (zh) | 2013-09-11 |
KR20130127485A (ko) | 2013-11-22 |
CA2820762A1 (fr) | 2012-06-14 |
KR101514226B1 (ko) | 2015-04-22 |
CA2820762C (fr) | 2015-10-13 |
US8998492B2 (en) | 2015-04-07 |
US20130315516A1 (en) | 2013-11-28 |
CN103299066B (zh) | 2016-10-12 |
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