GB2089442B - Viscous damper with rotor centering means - Google Patents

Viscous damper with rotor centering means

Info

Publication number
GB2089442B
GB2089442B GB8133038A GB8133038A GB2089442B GB 2089442 B GB2089442 B GB 2089442B GB 8133038 A GB8133038 A GB 8133038A GB 8133038 A GB8133038 A GB 8133038A GB 2089442 B GB2089442 B GB 2089442B
Authority
GB
United Kingdom
Prior art keywords
rotor
centering means
viscous damper
rotor centering
oil
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB8133038A
Other versions
GB2089442A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Technologies Corp
Original Assignee
United Technologies Corp
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 United Technologies Corp filed Critical United Technologies Corp
Publication of GB2089442A publication Critical patent/GB2089442A/en
Application granted granted Critical
Publication of GB2089442B publication Critical patent/GB2089442B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F16C27/045—Ball or roller bearings, e.g. with resilient rolling bodies with a fluid film, e.g. squeeze film damping
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of The Bearing (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

The gap adjacent the tips of the blades (not shown) of a rotor 50 in a turbine type power plant is prevented from increasing, as a result of rotor sag occasioned when an oil damped bearing 48 is utilized, by cantilevered springs 70 connecting the bearing support ring 56 to housing 72. Seals 59, 60 and rings 56, 64 define an annular chamber containing the damping oil. <IMAGE>
GB8133038A 1980-12-11 1981-11-03 Viscous damper with rotor centering means Expired GB2089442B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21530280A 1980-12-11 1980-12-11

Publications (2)

Publication Number Publication Date
GB2089442A GB2089442A (en) 1982-06-23
GB2089442B true GB2089442B (en) 1985-03-27

Family

ID=22802443

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8133038A Expired GB2089442B (en) 1980-12-11 1981-11-03 Viscous damper with rotor centering means

Country Status (4)

Country Link
JP (2) JPS57173613A (en)
CA (1) CA1161763A (en)
FR (1) FR2496169B1 (en)
GB (1) GB2089442B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57179418A (en) * 1981-04-30 1982-11-05 Hitachi Ltd Flexible damping bearing
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
US4570045A (en) * 1984-03-08 1986-02-11 Jeppson Morris R Conveyorized microwave heating chamber with dielectric wall structure
GB8421142D0 (en) * 1984-08-20 1984-09-26 Brown R D Damping device
US4657410A (en) * 1986-03-25 1987-04-14 United Technologies Corporation Nutation damper
DE4019720A1 (en) * 1990-06-21 1992-01-09 Bmw Rolls Royce Gmbh Through-flow calibration for compressed oil damper - is used with turbine and has housing with roller bearing, outer rings, and seals
FR3009843B1 (en) * 2013-08-26 2015-09-25 Snecma SUPPORTING COLUMNS OF AN EXTERNAL ROLLING BEARING RING FOR AIRCRAFT TURBOMACHINE, AND METHOD OF MOUNTING THE SAME
US9488071B2 (en) 2015-03-27 2016-11-08 United Technologies Corporation Piston ring anti-rotation
FR3085408B1 (en) * 2018-08-28 2020-08-07 Safran Aircraft Engines TURBOMACHINE IMPROVEMENTS
FR3120899B1 (en) * 2021-03-18 2023-05-26 Safran Aircraft Engines CENTERING AND GUIDE DEVICE FOR AN AIRCRAFT TURBOMACHINE SHAFT

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB928250A (en) * 1962-01-12 1963-06-12 Rolls Royce Bearing
GB988500A (en) * 1964-02-21 1965-04-07 Rolls Royce Bearing
US3456992A (en) * 1967-04-07 1969-07-22 Curtiss Wright Corp Vibration damping device
GB1421377A (en) * 1972-04-18 1976-01-14 Rolls Royce Bearing assemblies
US3994541A (en) * 1975-10-03 1976-11-30 Carrier Corporation Bearing assembly
GB2033024A (en) * 1978-10-19 1980-05-14 Gen Electric Bearing assembly with resilient support means
US4214796A (en) * 1978-10-19 1980-07-29 General Electric Company Bearing assembly with multiple squeeze film damper apparatus

Also Published As

Publication number Publication date
GB2089442A (en) 1982-06-23
JPH02119521U (en) 1990-09-26
FR2496169A1 (en) 1982-06-18
JPS57173613A (en) 1982-10-26
FR2496169B1 (en) 1988-04-29
CA1161763A (en) 1984-02-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20001103