WO2006043987A3 - Method and system for improved blade tip clearance in a gas turbine jet engine - Google Patents

Method and system for improved blade tip clearance in a gas turbine jet engine Download PDF

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Publication number
WO2006043987A3
WO2006043987A3 PCT/US2005/017299 US2005017299W WO2006043987A3 WO 2006043987 A3 WO2006043987 A3 WO 2006043987A3 US 2005017299 W US2005017299 W US 2005017299W WO 2006043987 A3 WO2006043987 A3 WO 2006043987A3
Authority
WO
WIPO (PCT)
Prior art keywords
case
ring
blade tip
tip clearance
gas turbine
Prior art date
Application number
PCT/US2005/017299
Other languages
French (fr)
Other versions
WO2006043987A2 (en
Inventor
Louis James Cardarella Jr
John Usherwood
Campo Andres Del
Original Assignee
Carlton Forge Works
Louis James Cardarella Jr
John Usherwood
Campo Andres Del
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 Carlton Forge Works, Louis James Cardarella Jr, John Usherwood, Campo Andres Del filed Critical Carlton Forge Works
Publication of WO2006043987A2 publication Critical patent/WO2006043987A2/en
Publication of WO2006043987A3 publication Critical patent/WO2006043987A3/en

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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • 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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
    • F01D21/045—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position special arrangements in stators or in rotors dealing with breaking-off of part of rotor
    • 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
    • F01D25/08—Cooling; Heating; Heat-insulation
    • F01D25/12—Cooling
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/49318—Repairing or disassembling
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/4932—Turbomachine making
    • Y10T29/49321—Assembling individual fluid flow interacting members, e.g., blades, vanes, buckets, on rotary support member
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • Y10T29/49721—Repairing with disassembling
    • Y10T29/4973—Replacing of defective part
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

A low or high pressure turbine case is machined on its outside surface to form circumferential notches. The notches coincide with the internal locations of labyrinth seals for the blades, or with 'hot spots' that have been identified. A stiffener ring is shrunk with an interference fit into each notch through inducing temperature differentials between the ring and the case. The compressive circumferential force exerted by each ring prevents the low or high pressure turbine case from expanding as much as it would otherwise, thus improving blade tip clearance or counterbalancing the 'hot spots', stiffening the case, and improving case cooling. In an alternate embodiment a hydraulic nut may be used to push the ring in place and held by a locking nut. Alternatively, C-rings, or multiple segmented rings, may be coupled together by hydraulic, electrical, or other means and actuated by a controller to exert adjustable compressive circumferential force.
PCT/US2005/017299 2004-05-17 2005-05-17 Method and system for improved blade tip clearance in a gas turbine jet engine WO2006043987A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US57170104P 2004-05-17 2004-05-17
US60/571,701 2004-05-17
US11/128,959 US20050252000A1 (en) 2004-05-17 2005-05-13 Method and system for improved blade tip clearance in a gas turbine jet engine
US11/128,959 2005-05-13

Publications (2)

Publication Number Publication Date
WO2006043987A2 WO2006043987A2 (en) 2006-04-27
WO2006043987A3 true WO2006043987A3 (en) 2006-09-14

Family

ID=35307979

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/017299 WO2006043987A2 (en) 2004-05-17 2005-05-17 Method and system for improved blade tip clearance in a gas turbine jet engine

Country Status (2)

Country Link
US (1) US20050252000A1 (en)
WO (1) WO2006043987A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ551475A (en) * 2004-05-17 2010-09-30 Carlton Forge Works Turbine case reinforcement in a gas turbine jet engine
US8191254B2 (en) 2004-09-23 2012-06-05 Carlton Forge Works Method and apparatus for improving fan case containment and heat resistance in a gas turbine jet engine
BR112015006124B1 (en) * 2012-09-20 2023-01-24 United Technologies Corporation GAS TURBINE ENGINE
BR102013021427B1 (en) 2013-08-16 2022-04-05 Luis Antonio Waack Bambace Axial turbomachines with rotating housing and fixed central element
GB2553806B (en) 2016-09-15 2019-05-29 Rolls Royce Plc Turbine tip clearance control method and system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119452A (en) * 1982-04-27 1983-11-16 Rolls Royce Shroud assemblies for axial flow turbomachine rotors

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6877952B2 (en) * 2002-09-09 2005-04-12 Florida Turbine Technologies, Inc Passive clearance control

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119452A (en) * 1982-04-27 1983-11-16 Rolls Royce Shroud assemblies for axial flow turbomachine rotors

Also Published As

Publication number Publication date
WO2006043987A2 (en) 2006-04-27
US20050252000A1 (en) 2005-11-17

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