JPS57151025A - Thrust balance piston in two-shaft gas turbine - Google Patents

Thrust balance piston in two-shaft gas turbine

Info

Publication number
JPS57151025A
JPS57151025A JP3455681A JP3455681A JPS57151025A JP S57151025 A JPS57151025 A JP S57151025A JP 3455681 A JP3455681 A JP 3455681A JP 3455681 A JP3455681 A JP 3455681A JP S57151025 A JPS57151025 A JP S57151025A
Authority
JP
Japan
Prior art keywords
pressure turbine
rotor
balance piston
bearing
casing
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.)
Pending
Application number
JP3455681A
Other languages
Japanese (ja)
Inventor
Kazuhiko Kumada
Hiroo Iwase
Kenji Tokunaga
Soichi Kurosawa
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP3455681A priority Critical patent/JPS57151025A/en
Publication of JPS57151025A publication Critical patent/JPS57151025A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/06—Arrangements of bearings; Lubricating

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE:To simplify construction of a balance piston, by utilizing a bearing casing, sealing a journal bearing in a low pressure turbine part, and providing the balance piston. CONSTITUTION:A bearing cover 12 is provided with size and shape for covering a rotor stepped difference part 14 from the end of a rotor 11, and the inside of said cover is sealed from an intermediate pressure turbine casing by a labyrinth packing 15 in a large contour part of the rotor in the position of an intermediate pressure turbine 10. Sealing air at slightly higher pressure than high temperature and high pressure gas is supplied to space between the intermediate pressure turbine casing 8 and the bearing cover 12, then the high temperature and high pressure gas from a high pressure turbine is confined to the inside of a duct 9, simultaneously the duct 9 is cooled. Applied pressure to the rotor stepped difference part 14 is cancelled or decreased, and reversly acting thrust force can be reduced by the amount of cancellation or decrease of said pressure.
JP3455681A 1981-03-12 1981-03-12 Thrust balance piston in two-shaft gas turbine Pending JPS57151025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3455681A JPS57151025A (en) 1981-03-12 1981-03-12 Thrust balance piston in two-shaft gas turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3455681A JPS57151025A (en) 1981-03-12 1981-03-12 Thrust balance piston in two-shaft gas turbine

Publications (1)

Publication Number Publication Date
JPS57151025A true JPS57151025A (en) 1982-09-18

Family

ID=12417580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3455681A Pending JPS57151025A (en) 1981-03-12 1981-03-12 Thrust balance piston in two-shaft gas turbine

Country Status (1)

Country Link
JP (1) JPS57151025A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107605538A (en) * 2017-10-10 2018-01-19 华能国际电力股份有限公司 Supercritical carbon dioxide turbine ladder wheel disc and its design method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107605538A (en) * 2017-10-10 2018-01-19 华能国际电力股份有限公司 Supercritical carbon dioxide turbine ladder wheel disc and its design method
CN107605538B (en) * 2017-10-10 2023-09-15 华能国际电力股份有限公司 Supercritical carbon dioxide turbine stepped wheel disc and design method thereof

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