GB1384216A - Reversible axial flow turbines - Google Patents

Reversible axial flow turbines

Info

Publication number
GB1384216A
GB1384216A GB2056173A GB2056173A GB1384216A GB 1384216 A GB1384216 A GB 1384216A GB 2056173 A GB2056173 A GB 2056173A GB 2056173 A GB2056173 A GB 2056173A GB 1384216 A GB1384216 A GB 1384216A
Authority
GB
United Kingdom
Prior art keywords
blade
blades
flap
ring
carrying
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
GB2056173A
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 GB1384216A publication Critical patent/GB1384216A/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
    • 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
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
    • F01D17/162—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
    • F01D5/187—Convection 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Control Of Turbines (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

1384216 Turbines GENERAL ELECTRIC CO 30 April 1973 [1 May 1972] 20561/73 Heading F1T In a reversible axial-flow turbine having a rotor (23), Fig. 1 (not shown), carrying blades 41 with coaxial radially inner and outer forward and reverse blade portions, (23b), (23a) and having aligned inner and outer guide vanes (41b) (41a) either ring of guide blades may be selectively turned to close off working fluid-flow therethrough, and leakage between the blades is prevented by providing recesses 61 in the backs of at least one ring of the blades to be engaged by the adjacent blade tails, aerodynamic flow over the blade back side When the blade is opened being ensured by providing closure flaps 64 for the recesses. As shown, the flap is hinged at 65 and biased out against a lip 62 by a dished washer spring 66 in a notch 63. Again, Fig. 5 (not shown), the spring may be helical. Also, Fig. 6 (not shown), the flap may be resilient and welded to the blade, and, Fig. 7 (not shown), may carry a piston (95) projecting into a high pressure air cylinder (96) and carrying a limiting stop (97).
GB2056173A 1972-05-01 1973-04-30 Reversible axial flow turbines Expired GB1384216A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24961472A 1972-05-01 1972-05-01

Publications (1)

Publication Number Publication Date
GB1384216A true GB1384216A (en) 1975-02-19

Family

ID=22944269

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2056173A Expired GB1384216A (en) 1972-05-01 1973-04-30 Reversible axial flow turbines

Country Status (5)

Country Link
US (1) US3790298A (en)
JP (1) JPS4941707A (en)
DE (1) DE2321582A1 (en)
GB (1) GB1384216A (en)
NO (1) NO136378C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856962A (en) * 1988-02-24 1989-08-15 United Technologies Corporation Variable inlet guide vane

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2714109B1 (en) * 1993-12-22 1996-01-19 Snecma Variable camber turbomachine blade.
US8382436B2 (en) * 2009-01-06 2013-02-26 General Electric Company Non-integral turbine blade platforms and systems
US8262345B2 (en) * 2009-02-06 2012-09-11 General Electric Company Ceramic matrix composite turbine engine
US8668445B2 (en) 2010-10-15 2014-03-11 General Electric Company Variable turbine nozzle system
RU2621450C2 (en) * 2012-06-19 2017-06-06 Вольво Ластвагнар Аб Device for controlling gas stream, after-treatment system of exhaust gases and propulsion system for means of transport
WO2014200831A1 (en) 2013-06-14 2014-12-18 United Technologies Corporation Variable area gas turbine engine component having movable spar and shell
RU2636965C1 (en) * 2016-10-31 2017-11-29 Публичное акционерное общество "Научно-производственное объединение "Сатурн" Reversing turbine stage
RU172585U1 (en) * 2016-10-31 2017-07-13 Публичное акционерное общество "Научно-производственное объединение "Сатурн" STATOR OF REVERSIBLE POWER TURBINE
CN109505664B (en) * 2019-01-25 2023-09-08 中国船舶重工集团公司第七0三研究所 Marine gas turbine power turbine that can reverse with double-deck rotatable stator
US11359506B2 (en) * 2020-01-13 2022-06-14 Raytheon Technologies Corporation Contoured stop for variable area turbine
US11486265B1 (en) * 2021-07-23 2022-11-01 Pratt & Whitney Canada Corp. Sealing variable guide vanes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1688736A (en) * 1927-03-16 1928-10-23 Lewis F Moody Hydraulic turbine
AT188286B (en) * 1953-04-17 1957-01-10 Escher Wyss Ag Safety device on water turbines
FR1265296A (en) * 1960-05-18 1961-06-30 Electricite De France Sealing devices for hydraulic turbine guide vanes
US3286983A (en) * 1965-11-19 1966-11-22 Gen Electric Reversible axial flow gas turbine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856962A (en) * 1988-02-24 1989-08-15 United Technologies Corporation Variable inlet guide vane

Also Published As

Publication number Publication date
US3790298A (en) 1974-02-05
NO136378B (en) 1977-05-16
JPS4941707A (en) 1974-04-19
DE2321582A1 (en) 1973-11-15
NO136378C (en) 1977-08-24

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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