[특허]Gas turbine engine blade tip clearance apparatus and method

[미국특허] Gas turbine engine blade tip clearance apparatus and method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01D-011/08
출원번호	US-0166720 (2008-07-02)
등록번호	US8011883 (2011-08-23)
발명자 / 주소	Schwarz, Frederick M. Smith, J. Walter
출원인 / 주소	United Technologies Corporation
대리인 / 주소	Bachman & LaPointe, P.C.
인용정보	피인용 횟수 : 21 인용 특허 : 15

초록 ▼

A method for controlling blade tip clearance within a gas turbine engine includes a compressor having at least one first rotor assembly, wherein the blade tips in each of at least one first rotor assembly has a mating geometry with at least one of at least one blade seal surfaces, and a clearance distance extending between the blade tips and the blade seal surfaces; a turbine having at least one second rotor assembly, wherein the blade tips in each of at least one second rotor assembly has a mating geometry with at least one of at least one blade seal surfaces, and a clearance distance extending between the blade tips and the blade seal surfaces; providing an actuator selectively operable to move at least one rotor assembly relative to the shroud; providing an electronic engine controller having a control logic for operating the actuator; and moving at least one first rotor assemblies and at least one second rotor assembly relative to the shroud using the actuator at a response rate according to the control logic to alter the clearance distance.

대표청구항 ▼

What is claimed is: 1. A zero running clearance system for gas turbine engines, comprising:at least one first rotor assembly of a gas turbine engine compressor rotatable around a rotational axis, each first rotor assembly having a plurality of blades with each blade having a tip;at least one first stator assembly of said gas turbine engine compressor disposed adjacent said at least one first rotor assembly;at least one first shroud segment having blade seal surfaces disposed radially outside of said at least one first rotor assembly;at least one second rotor assembly of a gas turbine engine turbine rotatable around said rotational axis, each second rotor assembly having a plurality of blades with each blade having a tip;at least one second stator assembly of said gas turbine engine turbine disposed adjacent said at least one second rotor assembly;at least one second shroud segment having blade seal surfaces disposed radially outside of said at least one second rotor assembly, wherein said blade tips and said blade seal surfaces have mating geometries and a clearance distance extending between said blade tips and said blade seal surfaces;an actuator selectively operable to move said at least one first rotor assembly and said at least one second rotor assembly to alter said clearance distance; andmeans for controlling said actuator at a response rate sufficient to alter said clearance distance.

이 특허에 인용된 특허 (15) 인용/피인용 타임라인 분석

Eastman James M. (South Bend IN), Actuator.
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Wright William B. (Leicester GB2) Flatman Richard J. (Derby GB2), Blade tip clearance control.
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Ciokajlo John J. (Cincinnati OH), Blade tip clearance control apparatus for a gas turbine engine.
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Corsmeier Robert J. (Cincinnati OH) Tseng Wu-Yang (West Chester OH), Blade tip clearance control apparatus using shroud segment position modulation.
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Lau Kwok Y. (Derby GB2), Blade tip clearance control arrangement for a gas turbine.
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Schwarz Fred M. (Glastonbury CT) Crawley ; Jr. Clifton J. (Glastonbury CT) Rausco Anthony (Middletown CT) Lagueux Ken R. (Berlin CT), Clearance control method for gas turbine engine.
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Griffin James G. (West Hartford CT) Schwarz Frederick M. (Glastonbury CT), External gas turbine engine cooling for clearance control.
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Torstenfelt Nils A. R. (Finspong SEX), Gas turbine.
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Schwarz,Frederick M.; Perkinson,Robert H.; Smith,Jesse Walter, Gas turbine engine blade tip clearance apparatus and method.
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Holland Brian C. (Darley Abbey GB2) Hirst Roy T. (Ticknall GB2) Sills Roger J. M. (Littleover GB2) Moore Cyril G. (Littleover GB2), Gas turbine engines.
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Mansson Martin (Finspong SEX), Method and a device in a rotating machine.
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Albrecht, Jr., Richard William; Kulesa, Joseph Charles; Czachor, Robert Paul; Srivatsa, Shesh Krishna; Wines, Daniel Edward; Wallace, Thomas Tracy, Methods and apparatus for reducing seal teeth wear.
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Ciokailo John J. (Cincinnati OH), Radial adjustment mechanism for blade tip clearance control apparatus.
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Roberts Michael C. (Bristol GB2) Leonard John F. (Bristol GB2), Rotor shroud assembly.
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Colley Rowan H. (Sunnyhill GB2), Rotor tip clearance control apparatus for a gas turbine engine.
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이 특허를 인용한 특허 (21) 인용/피인용 타임라인 분석

McCaffrey, Michael G., Adjustable blade outer air seal apparatus.
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Childs, Dara W., Annular seals for non-contact sealing of fluids in turbomachinery.
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McCaffrey, Michael G.; Rouse, Brandon T.; Almy, Thomas; Garcia, Igor S.; Farris, John R.; Borja, Mark, Blade outer air seal system for controlled tip clearance.
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Moniz, Thomas Ory; Rose, Joseph George, Centrifugal compressor assembly for use in a turbine engine and method of assembly.
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Dong, Yuan; Brilliant, Lisa I.; Carminati, Daniel; Sirica, Steven J., Compressor tip clearance management for a gas turbine engine.
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Chouhan, Rohit, Forward step honeycomb seal for turbine shroud.
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Blaney, Ken F.; Lutjen, Paul M., Gas turbine engine blade outer air seal thermal control system.
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Hiester, Paul J., Gas turbine engine with compressor disk deflectors.
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Anglin, Christopher T.; McLean, Lawrence A., Gear baffle configured with lubricant outlet passage.
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Philbrick, Graham Ryan; Zywiak, Allison, Method for clearance control in a gas turbine engine.
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Davis, Todd A.; Webb, Timothy; Ronski, Mark; Stachowiak, David A., Mount with an axial upstream linkage for connecting a gearbox to a turbine engine case.
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Dierksmeier, Douglas D., Sealing features for a gas turbine engine.
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Anglin, Christopher T., Slotted oil baffle for gears.
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Zacchera, Kevin; Couture, Patrick D., Smart active clearance control between a rotor blade and a shroud.
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Lyders, David R, Stator assembly with pad interface for a gas turbine engine.
상세보기
Novikov, Dmitri; Furrer, David Ulrich; Burlatsky, Sergei F, Stiffness controlled abradeable seal system with max phase materials and methods of making same.
상세보기
Bates, Peter R, System and method for adjusting rotor-stator clearance.
상세보기
Davis, Todd A.; Webb, Timothy; Ronski, Mark; Stachowiak, David A., Turbine engine gearbox mount with multiple fuse joints.
상세보기
Plante, Kenneth M.; McCready, John A.; Szymbor, John A., Vane support assembly.
상세보기
Richardson, Carl S.; Szymbor, John A., Vane tip machining fixture assembly.
상세보기
McCaffrey, Michael G, Vented tangential on-board injector for a gas turbine engine.
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A	생활필수품
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A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Gas turbine engine blade tip clearance apparatus and method 원문보기