[go: up one dir, main page]

WO2002044574A3 - Thrust compensation mechanism - Google Patents

Thrust compensation mechanism Download PDF

Info

Publication number
WO2002044574A3
WO2002044574A3 PCT/US2001/046362 US0146362W WO0244574A3 WO 2002044574 A3 WO2002044574 A3 WO 2002044574A3 US 0146362 W US0146362 W US 0146362W WO 0244574 A3 WO0244574 A3 WO 0244574A3
Authority
WO
WIPO (PCT)
Prior art keywords
compensation mechanism
abstract
thrust compensation
seal
searcher
Prior art date
Application number
PCT/US2001/046362
Other languages
French (fr)
Other versions
WO2002044574A2 (en
Inventor
Dennis H Weissert
Kurt H Wieland
Original Assignee
Capstone Turbine 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 Capstone Turbine Corp filed Critical Capstone Turbine Corp
Priority to AU2002225899A priority Critical patent/AU2002225899A1/en
Publication of WO2002044574A2 publication Critical patent/WO2002044574A2/en
Publication of WO2002044574A3 publication Critical patent/WO2002044574A3/en

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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/024—Sliding-contact bearings for exclusively rotary movement for radial load only with flexible leaves to create hydrodynamic wedge, e.g. radial foil 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
    • 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
    • F16C32/0603—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 gas cushion, e.g. an air cushion
    • F16C32/0614—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 gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic 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
    • 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
    • F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
    • F16C32/0685—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for radial 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
    • 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
    • F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
    • F16C32/0692—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/74—Sealings 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/80—Labyrinth sealings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A reduced thrust compensation mechanism is provided with a pressurized fluid source and one conventional seal, a fluid film or foil bearing is used as another seal. A bearing system as described may be used in high speed rotating machines such as turbo generators to improve efficiency. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
PCT/US2001/046362 2000-12-01 2001-12-03 Thrust compensation mechanism WO2002044574A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002225899A AU2002225899A1 (en) 2000-12-01 2001-12-03 Thrust compensation mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25076100P 2000-12-01 2000-12-01
US60/250,761 2000-12-01

Publications (2)

Publication Number Publication Date
WO2002044574A2 WO2002044574A2 (en) 2002-06-06
WO2002044574A3 true WO2002044574A3 (en) 2002-08-08

Family

ID=22949029

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/046362 WO2002044574A2 (en) 2000-12-01 2001-12-03 Thrust compensation mechanism

Country Status (2)

Country Link
AU (1) AU2002225899A1 (en)
WO (1) WO2002044574A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8866334B2 (en) 2010-03-02 2014-10-21 Icr Turbine Engine Corporation Dispatchable power from a renewable energy facility
US8984895B2 (en) 2010-07-09 2015-03-24 Icr Turbine Engine Corporation Metallic ceramic spool for a gas turbine engine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9051873B2 (en) 2011-05-20 2015-06-09 Icr Turbine Engine Corporation Ceramic-to-metal turbine shaft attachment
US10094288B2 (en) 2012-07-24 2018-10-09 Icr Turbine Engine Corporation Ceramic-to-metal turbine volute attachment for a gas turbine engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634297A (en) * 1981-04-15 1987-01-06 Sven Schriwer Means for sealing of a bearing space formed in hydrostatic and aerostatic bearings adapted to receive a fluid
US5271676A (en) * 1992-07-30 1993-12-21 General Electric Company Combination package tilt pad journal bearing/dual self equalizing thrust bearings, with hydrostatic lift provisions
EP1037363A2 (en) * 1999-03-09 2000-09-20 Sony Corporation Motor for rotating a disk-shaped information recording medium in a disk drive apparatus
US6286303B1 (en) * 1999-11-18 2001-09-11 Allied Signal, Inc. Impingement cooled foil bearings in a gas turbine engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634297A (en) * 1981-04-15 1987-01-06 Sven Schriwer Means for sealing of a bearing space formed in hydrostatic and aerostatic bearings adapted to receive a fluid
US5271676A (en) * 1992-07-30 1993-12-21 General Electric Company Combination package tilt pad journal bearing/dual self equalizing thrust bearings, with hydrostatic lift provisions
EP1037363A2 (en) * 1999-03-09 2000-09-20 Sony Corporation Motor for rotating a disk-shaped information recording medium in a disk drive apparatus
US6286303B1 (en) * 1999-11-18 2001-09-11 Allied Signal, Inc. Impingement cooled foil bearings in a gas turbine engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8866334B2 (en) 2010-03-02 2014-10-21 Icr Turbine Engine Corporation Dispatchable power from a renewable energy facility
US8984895B2 (en) 2010-07-09 2015-03-24 Icr Turbine Engine Corporation Metallic ceramic spool for a gas turbine engine

Also Published As

Publication number Publication date
WO2002044574A2 (en) 2002-06-06
AU2002225899A1 (en) 2002-06-11

Similar Documents

Publication Publication Date Title
UA27766C2 (en) Method for cooling low pressure steam turbine in ventilation mode
GB2421529A (en) A method of radially expanding and plastically deforming tubular members
ES2154734T3 (en) DRILL WITH A DRILL POINT.
CA2381678A1 (en) Friction control composition with enhanced retentivity
AU2001248631A1 (en) Bearings
WO2002048562A3 (en) Seal for a roller bearing
ATE236369T1 (en) DEVICE WITH A ROTATING COOPERATION
EP1061258A4 (en) Performance regulating device for fluid machinery
WO2002044574A3 (en) Thrust compensation mechanism
DE50103786D1 (en) DYNAMIC GAS BEARING OF A MOTOR SPINDLE WITH BLEEDING
FI103296B1 (en) A method for producing a pressurized gas
AU2003226684A1 (en) Power transformer for wind energy plants
WO2004001742A3 (en) Rotor limiter for fluid dynamic bearing motor
DE69716552D1 (en) SEAL / BEARING DEVICE
AU2001235842A1 (en) Seal
CA2190193A1 (en) Sealing unit with axial brushes controlled by static pressure in axial movement
GB2336407A (en) Hydrodynamic bearing including means for monitoring the capacitance between the rotor and stator of hydrodynamic bearing
KR890016310A (en) Automatic transmission
WO2002093366A3 (en) Lightweight native method invocation interface for java computing environments
Suda Developments in cutting fluids for MQL cutting
DE69717417D1 (en) extrusion device
DE50015124D1 (en) SPEED SENSOR FOR MONOCHROMATIZING A NEUTRON BEAM
JPS5510119A (en) Fluid bearing unit
JPS5285659A (en) Thrust bearing
JPS5655711A (en) Floating bearing

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP