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GB1362750A - Axial flow reversible turbine - Google Patents

Axial flow reversible turbine

Info

Publication number
GB1362750A
GB1362750A GB3727472A GB3727472A GB1362750A GB 1362750 A GB1362750 A GB 1362750A GB 3727472 A GB3727472 A GB 3727472A GB 3727472 A GB3727472 A GB 3727472A GB 1362750 A GB1362750 A GB 1362750A
Authority
GB
United Kingdom
Prior art keywords
turbine
blades
guide vanes
members
stem
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
GB3727472A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1362750A publication Critical patent/GB1362750A/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
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/30—Non-positive-displacement machines or engines, e.g. steam turbines characterised by having a single rotor operable in either direction of rotation, e.g. by reversing of blades
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)
  • Supercharger (AREA)

Abstract

1362750 Reversible turbines GENERAL ELECTRIC CO 10 Aug 1972 [16 Dec 1971] 37274/72 Heading FIT The invention relates to a reversible axial flow turbine in which the turbine is provided with an outer set of rotor blades 9a for forward rotation and an inner set of blades 9b for reverse rotation. The engine shown comprises a compressor drive turbine 4 and a separate power turbine 5 mounted on a shaft 7, the power turbine comprising an outer set of blades 9a and an inner set of blades 9b, gas flow from the compressor drive turbine to the blades 9a, 9b being controlled by an outer set of inlet guide vanes 15 and an inner set of inlet guide vanes 16, the gas flow path being divided into outer and inner paths by means of partitions 21 and 19, the partition 19 being formed with partspherical surfaces 19a, 19b to permit angular movement of the guide vanes 15, 16. The outer guide vanes 15 comprise a stem 25 rotatable in sleeve 26 and operable by a lever 28 whereby the position of the vanes may be controlled; similarly the inner guide vanes 16 comprise a stem 27 which extends through the stem 25 of the outer guide vanes and is operable by a lever 29. The guide vanes 15 or 16 of the inoperative turbine are completely closed. A single exhaust duct 12 is provided downstream of the turbine and a series of members 13 are pivotally mounted at 35 at the inner wall of the exhaust duct being movable by actuators 37 and linkage 36 whereby the members 13 are movable between a first position as shown in Fig. 1 in which they block the outlet from the inner rotor blades 9b, and a second position as shown in Fig.2 in which they open the outlet from the rotor blades 9b. In the first position the blades 9a are operative and the turbine rotates in the forward or ahead direction, while in the second position the blades 9b are operative and the turbine rotates in the reverse or astern direction. The members 13 comprise a flow guiding surface 40 and a blocking surface 41 also a web portion 42, sealing portions 45, 46 extending from the surfaces 40, 41. The members 13 are moved downwardly into an annular recess 38 for reverse operation.
GB3727472A 1971-12-16 1972-08-10 Axial flow reversible turbine Expired GB1362750A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20884071A 1971-12-16 1971-12-16

Publications (1)

Publication Number Publication Date
GB1362750A true GB1362750A (en) 1974-08-07

Family

ID=22776253

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3727472A Expired GB1362750A (en) 1971-12-16 1972-08-10 Axial flow reversible turbine

Country Status (4)

Country Link
US (1) US3752597A (en)
JP (1) JPS5443642B2 (en)
DE (1) DE2245111A1 (en)
GB (1) GB1362750A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802797A (en) * 1973-01-15 1974-04-09 Gen Electric Reversing turbine flow divider support
US6557349B1 (en) * 2000-04-17 2003-05-06 General Electric Company Method and apparatus for increasing heat transfer from combustors
US7780403B2 (en) * 2006-09-08 2010-08-24 Siemens Energy, Inc. Adjustable turbine exhaust flow guide and bearing cone assemblies
US8511984B2 (en) * 2009-10-16 2013-08-20 General Electric Company Gas turbine engine exhaust diffuser and collector
US9260968B2 (en) * 2012-04-25 2016-02-16 General Electric Company Systems and methods for reconditioning turbine engines in power generation systems
US20140161603A1 (en) * 2012-12-07 2014-06-12 General Electric Company Exhaust diffuser
US11486265B1 (en) * 2021-07-23 2022-11-01 Pratt & Whitney Canada Corp. Sealing variable guide vanes
US12180849B1 (en) * 2023-12-22 2024-12-31 Ge Infrastructure Technology Llc Mitigation of rotating stall in turbine exhaust section using flow control vanes disposed therein

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286983A (en) * 1965-11-19 1966-11-22 Gen Electric Reversible axial flow gas turbine
US3472487A (en) * 1967-10-06 1969-10-14 Avco Corp Wide speed range gas power converter
US3638428A (en) * 1970-05-04 1972-02-01 Gen Electric Bypass valve mechanism

Also Published As

Publication number Publication date
JPS5443642B2 (en) 1979-12-21
US3752597A (en) 1973-08-14
DE2245111A1 (en) 1973-06-20
JPS4875912A (en) 1973-10-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee