GB1375283A – – Google Patents
GB1375283A – – Google Patents
Info
Publication number
GB1375283A
GB1375283A
GB730972A
GB730972A
GB1375283A
GB 1375283 A
GB1375283 A
GB 1375283A
GB 730972 A
GB730972 A
GB 730972A
GB 730972 A
GB730972 A
GB 730972A
GB 1375283 A
GB1375283 A
GB 1375283A
Authority
GB
United Kingdom
Prior art keywords
rotor
bearing
segments
bellows
orifices
Prior art date
1971-02-19
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
GB730972A
Inventor
A Hohn
P Novacek
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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.)
1971-02-19
Filing date
1972-02-17
Publication date
1974-11-27
1972-02-17
Application filed by BBC Brown Boveri AG Switzerland
filed
Critical
BBC Brown Boveri AG Switzerland
1974-11-27
Publication of GB1375283A
publication
Critical
patent/GB1375283A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
F01D25/166—Sliding contact bearing
B—PERFORMING OPERATIONS; TRANSPORTING
B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
B63B25/10—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid open to ambient air
B—PERFORMING OPERATIONS; TRANSPORTING
B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
B63B57/00—Tank or cargo hold cleaning specially adapted for vessels
B63B57/04—Tank or cargo hold cleaning specially adapted for vessels by ventilating
B—PERFORMING OPERATIONS; TRANSPORTING
B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
B65D90/00—Component parts, details or accessories for large containers
B65D90/22—Safety features
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
F16C27/02—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
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
F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
F16C33/108—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid with a plurality of elements forming the bearing surfaces, e.g. bearing pads
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
F16C33/109—Lubricant compositions or properties, e.g. viscosity
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
F16C39/00—Relieving load on bearings
F16C39/02—Relieving load on bearings using mechanical means
Abstract
1375283 Turbines B B C BROWN BOVERIE & CO Ltd 17 Feb 1972 [19 Feb 1971] 7309/72 Heading FIT [Also in Division F2] A turbomachine, e.g. a steam turbine, having a bladed rotor 4 supported in a pair of bearings 5′ at opposite sides of the blade assembly is provided within the machine casing 1 with an auxiliary bearing 16 which acts to raise the fundamental frequency of vibration of the rotor 4. Bearing 16 is disposed within turbine inner casing 3 at a point where, with only bearings 5′, the maximum amplitude of vibration of rotor 4 would occur. Bearing 16 comprises a split support ring 17, 17′ fitted with three bearing segments 20 having internal channels 22 supplied with lubricant, e.g. water, gas or vapour, from annular space 19 via flexible pipes 21. The lubricant flows from channels 22 through orifices 26 to recesses 24 in bearing surfaces 25. Each bearing segment 20 is attached to support ring 17, 17′ by flexible plates 27, bellows 23 and springs 29 with guide pins 30. At low speeds a clearance d exists between segments 20 and rotor 4. As speed increases the bellows 23 are pressurized by lubricant supplied from annular space 19 via orifices 33 and act to urge the segments 20 against rotor 4 in opposition to the outwardly biasing action of springs 29. Bellows 23 in conjunction with orifices 33 act to damp vibration of the rotor. Stops 34 limit the travel h of segments 20 so that should the surface lining of the latter be worn away the base material of the segments cannot come into contact with rotor 4. A sealing bellows 9 is provided between the working fluid supply duct 8 of the machine and the outer casing 1.
GB730972A
1971-02-19
1972-02-17
Expired
GB1375283A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
CH243871A
CH528010A
(en)
1971-02-19
1971-02-19
Process for influencing the vibration behavior
Publications (1)
Publication Number
Publication Date
GB1375283A
true
GB1375283A
(en)
1974-11-27
Family
ID=4233804
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB730972A
Expired
GB1375283A
(en)
1971-02-19
1972-02-17
Country Status (8)
Country
Link
US
(1)
US3778182A
(en)
AT
(1)
AT315209B
(en)
CA
(1)
CA954797A
(en)
CH
(1)
CH528010A
(en)
DE
(2)
DE2111973B2
(en)
FR
(1)
FR2126001A5
(en)
GB
(1)
GB1375283A
(en)
SE
(1)
SE376946B
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US5772334A
(en)
*
1994-04-27
1998-06-30
British Technology Group Limited
Fluid film bearings
RU2651961C1
(en)
*
2017-03-20
2018-04-24
Общество с ограниченной ответственностью “Центр трансфера технологий “Кулон”
Radial sliding bearing
Families Citing this family (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2413655C3
(en)
*
1974-03-21
1978-05-03
Maschinenfabrik Augsburg-Nuernberg Ag, 8500 Nuernberg
Device for dynamic stabilization of the rotor of a gas or steam turbine
CH606793A5
(en)
*
1975-12-02
1978-11-15
Escher Wyss Ag
CH606851A5
(en)
*
1975-12-02
1978-11-15
Escher Wyss Ag
CH606801A5
(en)
*
1975-12-02
1978-11-15
Escher Wyss Ag
DE2632586C2
(en)
*
1976-07-20
1983-05-19
Gesellschaft für Kernverfahrenstechnik mbH, 5170 Jülich
Method and device for running through critical speeds of elongated rotors
US4947639A
(en)
*
1988-05-12
1990-08-14
United Technologies Corporation
Apparatus and method for supporting a rotating shaft in a rotary machine
WO1997045651A1
(en)
*
1996-05-24
1997-12-04
Siemens Aktiengesellschaft
Protection of a turbomachine against bearing oscillations
US6053699A
(en)
*
1998-07-27
2000-04-25
General Electric Company
Steam turbine having a brush seal assembly
EP1925835B1
(en)
*
2006-11-22
2013-03-27
Siemens Aktiengesellschaft
Radial sliding bearing
Family Cites Families (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US1529925A
(en)
*
1922-06-19
1925-03-17
Say James
Turbo blower
US3105631A
(en)
*
1961-08-15
1963-10-01
Sulzer Ag
Expansion turbine having a gas bearing
US3351394A
(en)
*
1965-01-07
1967-11-07
Mechanical Tech Inc
Hydrostatic bearings for a rotatable element
US3497164A
(en)
*
1968-03-15
1970-02-24
Hobbs H Horak
Vibration isolator
US3544233A
(en)
*
1968-07-29
1970-12-01
Westinghouse Electric Corp
Turbine nozzle chamber support arrangement
US3521981A
(en)
*
1968-08-30
1970-07-28
Edward Krzyszczuk
Pump or compressor
1971
1971-02-19
CH
CH243871A
patent/CH528010A/en
not_active
IP Right Cessation
1971-03-12
DE
DE2111973A
patent/DE2111973B2/en
active
Granted
1971-03-12
DE
DE7109432U
patent/DE7109432U/de
not_active
Expired
1971-12-23
AT
AT1107071A
patent/AT315209B/en
not_active
IP Right Cessation
1972
1972-02-08
US
US00224573A
patent/US3778182A/en
not_active
Expired – Lifetime
1972-02-17
FR
FR7205419A
patent/FR2126001A5/fr
not_active
Expired
1972-02-17
GB
GB730972A
patent/GB1375283A/en
not_active
Expired
1972-02-18
CA
CA135,123A
patent/CA954797A/en
not_active
Expired
1972-02-18
SE
SE7201955A
patent/SE376946B/xx
unknown
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US5772334A
(en)
*
1994-04-27
1998-06-30
British Technology Group Limited
Fluid film bearings
RU2651961C1
(en)
*
2017-03-20
2018-04-24
Общество с ограниченной ответственностью “Центр трансфера технологий “Кулон”
Radial sliding bearing
Also Published As
Publication number
Publication date
CA954797A
(en)
1974-09-17
US3778182A
(en)
1973-12-11
DE2111973A1
(en)
1972-08-31
FR2126001A5
(en)
1972-09-29
DE7109432U
(en)
1973-01-18
AT315209B
(en)
1974-05-10
CH528010A
(en)
1972-09-15
DE2111973C3
(en)
1979-12-20
SE376946B
(en)
1975-06-16
DE2111973B2
(en)
1979-04-26
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Legal Events
Date
Code
Title
Description
1975-04-09
PS
Patent sealed [section 19, patents act 1949]
1978-09-20
PCNP
Patent ceased through non-payment of renewal fee
