GB1282856A - Gas turbine engines - Google Patents

Gas turbine engines

Info

Publication number
GB1282856A
GB1282856A GB773970A GB773970A GB1282856A GB 1282856 A GB1282856 A GB 1282856A GB 773970 A GB773970 A GB 773970A GB 773970 A GB773970 A GB 773970A GB 1282856 A GB1282856 A GB 1282856A
Authority
GB
United Kingdom
Prior art keywords
ring
rotor
shroud ring
gas turbines
surrounded
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.)
Expired
Application number
GB773970A
Inventor
Mark Cary Sedgwick Barnard
Peter Jacobus Collet
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.)
Leyland Gas Turbines Ltd
Original Assignee
Leyland Gas Turbines Ltd
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 Leyland Gas Turbines Ltd filed Critical Leyland Gas Turbines Ltd
Priority to GB773970A priority Critical patent/GB1282856A/en
Priority to DE19712106739 priority patent/DE2106739A1/en
Publication of GB1282856A publication Critical patent/GB1282856A/en
Expired legal-status Critical Current

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
    • F01D11/14—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing
    • F01D11/16—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing by self-adjusting means
    • F01D11/18—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing by self-adjusting means using stator or rotor components with predetermined thermal response, e.g. selective insulation, thermal inertia, differential expansion

Landscapes

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

Abstract

1282856 Gas turbines LEYLAND GAS TURBINES Ltd 18 Jan 1971 [18 Feb 1970] 7739/70 Heading F1T The turbine rotor 4 in a gas turbine engine is surrounded by a stator shroud ring 1 of a material having an appreciably lower co-efficient of thermal expansion than that of the rotor. The materials may be stainless steel for shroud ring 1 and a nickel-chromium alloy for the rotor, the constituent proportions being specified. The shroud ring also surrounds a nozzle ring 2 carrying vanes 3, the nozzle assembly having a higher coefficient of expansion than shroud ring 1 so that a clearance 6 between vanes 3 and ring 1 in the cold state is reduced to zero at operating temperatures. However the same clearance 6 is maintained between rotor blades 5 and ring 1 under all conditions. The construction is applicable to regenerative gas turbines in which shroud ring 1 is surrounded by hot air from a heat exchanger.
GB773970A 1970-02-18 1970-02-18 Gas turbine engines Expired GB1282856A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB773970A GB1282856A (en) 1970-02-18 1970-02-18 Gas turbine engines
DE19712106739 DE2106739A1 (en) 1970-02-18 1971-02-12 Gas turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB773970A GB1282856A (en) 1970-02-18 1970-02-18 Gas turbine engines

Publications (1)

Publication Number Publication Date
GB1282856A true GB1282856A (en) 1972-07-26

Family

ID=9838797

Family Applications (1)

Application Number Title Priority Date Filing Date
GB773970A Expired GB1282856A (en) 1970-02-18 1970-02-18 Gas turbine engines

Country Status (2)

Country Link
DE (1) DE2106739A1 (en)
GB (1) GB1282856A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3269940A1 (en) * 2016-07-11 2018-01-17 General Electric Company Compressor and corresponding gas turbine engine with such a compressor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485630A (en) * 1982-12-08 1984-12-04 General Electric Company Combustor liner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3269940A1 (en) * 2016-07-11 2018-01-17 General Electric Company Compressor and corresponding gas turbine engine with such a compressor
JP2018009569A (en) * 2016-07-11 2018-01-18 ゼネラル・エレクトリック・カンパニイ Gas turbine compressor passive clearance control

Also Published As

Publication number Publication date
DE2106739A1 (en) 1971-09-09

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees