IT1248387B - Complesso di cuscinetti da usare in ambiente operativo ad alta temperatura - Google Patents
Complesso di cuscinetti da usare in ambiente operativo ad alta temperaturaInfo
- Publication number
- IT1248387B IT1248387B ITMI911278A ITMI911278A IT1248387B IT 1248387 B IT1248387 B IT 1248387B IT MI911278 A ITMI911278 A IT MI911278A IT MI911278 A ITMI911278 A IT MI911278A IT 1248387 B IT1248387 B IT 1248387B
- Authority
- IT
- Italy
- Prior art keywords
- cages
- pair
- bearing unit
- support
- support arms
- Prior art date
Links
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
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
-
- 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
- F01D25/164—Flexible supports; Vibration damping means associated with 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
- F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
- F16C19/26—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
-
- 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
- F16C2360/23—Gas turbine engines
-
- 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
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
- Support Of The Bearing (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Viene descritto un complesso di sostegno di cuscinetto per albero rotore ad alta velocità di un motore d'aereo a reazione, dove è implicata una temperatura di funzionamento fino a 1500° F (815°C), e l'unità di cuscinetto, che è esposta a tale condizione di temperatura, comprende elementi rotanti, un anello interno e un anello esterno costituiti da composti a matrice ceramica. L'unità di cuscinetto è sostenuta da un paio di gabbie cilindriche opposte, essendovi un paio di gabbie interne per sostenere l'anello interno e un paio di gabbie esterne per sostenere l'anello esterno. Le gabbie hanno mezzi flangiati ad una estremità e bracci di sostegno spaziati circolarmente estendentesi dalle flange verso le estremità opposte delle gabbie dove i bracci di sostegno sono conformati secondo strutture di appendici che si innestano con i corpi degli anelli.I bracci di sostegno sono flessibili in direzione radiale ma sono rigidi in direzioni tangenziali o circonferenziali.Le unità di gabbia hanno caratteristiche di elevata dilatazione termica mentre gli altri componenti metallici del complesso hanno valori intermedi rispetto a quello dell'unità di cuscinetto in ceramica che è più basso.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/528,520 US5052828A (en) | 1990-05-25 | 1990-05-25 | Bearing assembly for use in high temperature operating environment |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI911278A0 ITMI911278A0 (it) | 1991-05-10 |
ITMI911278A1 ITMI911278A1 (it) | 1992-11-10 |
IT1248387B true IT1248387B (it) | 1995-01-11 |
Family
ID=24106012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI911278A IT1248387B (it) | 1990-05-25 | 1991-05-10 | Complesso di cuscinetti da usare in ambiente operativo ad alta temperatura |
Country Status (6)
Country | Link |
---|---|
US (1) | US5052828A (it) |
JP (1) | JPH04231719A (it) |
DE (1) | DE4116369A1 (it) |
FR (1) | FR2662477A1 (it) |
GB (1) | GB2245035A (it) |
IT (1) | IT1248387B (it) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2708685B1 (fr) * | 1993-07-29 | 1995-09-08 | Roulements Soc Nouvelle | Montage de palier sur un arbre. |
US5562349A (en) * | 1994-11-15 | 1996-10-08 | Honeywell Inc. | Bearing assembly having thermal compensation |
US5553927A (en) * | 1995-03-02 | 1996-09-10 | The Budd Company | Rear axle assembly with wheel end axial retention |
DE29504068U1 (de) * | 1995-03-09 | 1995-05-04 | Skf Gmbh | Lageranordnung |
US5971706A (en) * | 1997-12-03 | 1999-10-26 | General Electric Company | Inter-rotor bearing assembly |
GB9909516D0 (en) * | 1999-04-26 | 1999-06-23 | Habit Diamond Ltd | Bearing |
AU2001232765A1 (en) | 2000-01-11 | 2001-07-24 | Gsi Lumonics Inc. | Rotary device with matched expansion ceramic bearings |
US6413046B1 (en) * | 2001-01-26 | 2002-07-02 | General Electric Company | Method and apparatus for centering rotor assembly damper bearings |
US6505974B2 (en) | 2001-05-02 | 2003-01-14 | Honeywell International, Inc. | Ceramic ball bearings and assembly |
US7431504B1 (en) | 2006-05-18 | 2008-10-07 | Florida Turbine Technologies, Inc. | High temperature damper for a roller bearing |
DE102008011097A1 (de) | 2008-02-26 | 2009-08-27 | Schaeffler Kg | Wälzlager |
US8092093B2 (en) * | 2008-07-31 | 2012-01-10 | General Electric Company | Dynamic impeller oil seal |
US8591117B2 (en) * | 2010-10-22 | 2013-11-26 | Trelleborg Automotive Usa | Hydraulic center bearing |
US8984858B2 (en) | 2010-12-30 | 2015-03-24 | Rolls-Royce Corporation | Gas turbine engine |
DK2518867T3 (en) | 2011-04-29 | 2017-07-17 | Welltec As | ELECTRICAL ENGINE |
US10001028B2 (en) * | 2012-04-23 | 2018-06-19 | General Electric Company | Dual spring bearing support housing |
DE102014205599A1 (de) | 2014-03-26 | 2015-10-01 | Robert Bosch Gmbh | Kühlhülse für ein Lager und Lager mit Kühlhülse |
CA2934668C (en) | 2015-07-09 | 2018-11-06 | General Electric Company | Bearing assembly for supporting a rotor shaft of a gas turbine engine |
US9869205B2 (en) | 2015-11-23 | 2018-01-16 | General Electric Company | Bearing outer race retention during high load events |
US10041534B2 (en) | 2016-02-08 | 2018-08-07 | General Electric Company | Bearing outer race retention during high load events |
US10196980B2 (en) | 2016-02-08 | 2019-02-05 | General Electric Company | Bearing outer race retention during high load events |
US10323541B2 (en) | 2017-03-15 | 2019-06-18 | General Electric Company | Bearing outer race retention during high load events |
US10677087B2 (en) | 2018-05-11 | 2020-06-09 | General Electric Company | Support structure for geared turbomachine |
US10801366B2 (en) | 2018-05-15 | 2020-10-13 | General Electric Company | Variable stiffness bearing housing |
US10823002B2 (en) | 2018-05-15 | 2020-11-03 | General Electric Company | Variable stiffness static structure |
US10823003B2 (en) | 2018-05-25 | 2020-11-03 | General Electric Company | System and method for mitigating undesired vibrations at a turbo machine |
US11493407B2 (en) | 2018-09-28 | 2022-11-08 | Ge Avio S.R.L. | Torque measurement system |
US11280208B2 (en) | 2019-08-14 | 2022-03-22 | Pratt & Whitney Canada Corp. | Labyrinth seal assembly |
US10794222B1 (en) | 2019-08-14 | 2020-10-06 | General Electric Company | Spring flower ring support assembly for a bearing |
US11674397B2 (en) | 2020-11-18 | 2023-06-13 | General Electric Company | Variable stiffness damper system |
US11828235B2 (en) | 2020-12-08 | 2023-11-28 | General Electric Company | Gearbox for a gas turbine engine utilizing shape memory alloy dampers |
US11542826B2 (en) | 2021-03-18 | 2023-01-03 | General Electric Company | Labyrinth seals |
FR3141493A1 (fr) * | 2022-10-31 | 2024-05-03 | Safran Aircraft Engines | Dispositif de suspension pour roulement |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB595348A (en) * | 1941-09-22 | 1947-12-03 | Karl Baumann | Improvements in internal combustion turbine plant |
FR1059967A (fr) * | 1951-04-18 | 1954-03-30 | Bristol Aeroplane Co Ltd | Perfectionnements aux machines tournantes |
US3097895A (en) * | 1960-11-10 | 1963-07-16 | Thompson Ramo Wooldridge Inc | Bearing suspension |
US3532402A (en) * | 1968-05-09 | 1970-10-06 | Burroughs Corp | Bearing mount |
US3485538A (en) * | 1968-07-12 | 1969-12-23 | Chrysler Corp | Journal mounting for rotatable shaft |
US3640591A (en) * | 1970-03-04 | 1972-02-08 | Us Air Force | Rolling contact bearing having temperature compensation |
GB1418907A (en) * | 1972-06-23 | 1975-12-24 | Rolls Royce | Bearing assemblies |
GB2033024A (en) * | 1978-10-19 | 1980-05-14 | Gen Electric | Bearing assembly with resilient support means |
US4302062A (en) * | 1979-09-20 | 1981-11-24 | United Technologies Corporation | Turbine blade support |
US4329000A (en) * | 1980-08-28 | 1982-05-11 | Caterpillar Tractor Co. | Self-contained, damped ball bearing assembly |
US4429923A (en) * | 1981-12-08 | 1984-02-07 | United Technologies Corporation | Bearing support structure |
US4453783A (en) * | 1981-12-28 | 1984-06-12 | United Technologies Corporation | Bearing support structure |
US4545691A (en) * | 1983-07-18 | 1985-10-08 | B. Linn Kastan | Bicycle crank bearing assembly |
EP0143950B1 (de) * | 1983-11-30 | 1987-03-18 | BBC Brown Boveri AG | Lagereinrichtung bei einem Abgasturbolader mit Tandem-Wälzlagern |
JPS61175313A (ja) * | 1985-01-29 | 1986-08-07 | Nippon Seiko Kk | 間座付ころがり軸受 |
JPH028102Y2 (it) * | 1985-02-07 | 1990-02-27 | ||
DE3509128C1 (de) * | 1985-03-14 | 1986-10-02 | Jean Walterscheid Gmbh, 5204 Lohmar | Lagerring |
US4668108A (en) * | 1985-03-22 | 1987-05-26 | General Electric Company | Bearing having anisotropic stiffness |
DE3536697A1 (de) * | 1985-10-15 | 1987-04-16 | Skf Gmbh | Tragkoerper eines waelzlagers |
DE8604837U1 (de) * | 1986-02-22 | 1986-04-10 | SKF GmbH, 8720 Schweinfurt | Vorrichtung zur formschlüssigen Verbindung von Maschinenteilen |
US4968158A (en) * | 1989-01-03 | 1990-11-06 | General Electric Company | Engine bearing assembly |
US4917218A (en) * | 1989-04-03 | 1990-04-17 | General Motors Corporation | Secondary oil system for gas turbine engine |
US4952076A (en) * | 1989-07-21 | 1990-08-28 | United Technologies Corporation | Fluid damper for thrust bearing |
-
1990
- 1990-05-25 US US07/528,520 patent/US5052828A/en not_active Expired - Fee Related
-
1991
- 1991-05-10 JP JP3133396A patent/JPH04231719A/ja active Pending
- 1991-05-10 IT ITMI911278A patent/IT1248387B/it active IP Right Grant
- 1991-05-16 FR FR9105946A patent/FR2662477A1/fr active Pending
- 1991-05-17 GB GB9110727A patent/GB2245035A/en not_active Withdrawn
- 1991-05-18 DE DE4116369A patent/DE4116369A1/de not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
US5052828A (en) | 1991-10-01 |
GB9110727D0 (en) | 1991-07-10 |
ITMI911278A1 (it) | 1992-11-10 |
FR2662477A1 (fr) | 1991-11-29 |
ITMI911278A0 (it) | 1991-05-10 |
JPH04231719A (ja) | 1992-08-20 |
DE4116369A1 (de) | 1991-12-05 |
GB2245035A (en) | 1991-12-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |