GB189457A - Improvements in multi-stage impulse turbines for steam or gas - Google Patents

Improvements in multi-stage impulse turbines for steam or gas

Info

Publication number
GB189457A
GB189457A GB31845/22A GB3184522A GB189457A GB 189457 A GB189457 A GB 189457A GB 31845/22 A GB31845/22 A GB 31845/22A GB 3184522 A GB3184522 A GB 3184522A GB 189457 A GB189457 A GB 189457A
Authority
GB
United Kingdom
Prior art keywords
blades
guide
space
turbine
wheel
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
GB31845/22A
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
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 BBC Brown Boveri AG Switzerland, BBC Brown Boveri France SA filed Critical BBC Brown Boveri AG Switzerland
Publication of GB189457A publication Critical patent/GB189457A/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
    • F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
    • F01D1/04—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines traversed by the working-fluid substantially axially
    • 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)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

189,457. Akt.-Ges. Brown, Boveri, et Cie. Nov. 26, 1921, [Convention date]. Axial-flow type.-In order to dispense with, or reduce the number of, the fixed partitions separating the pressure stages of a multi-stage impulse turbine, the inlet and outlet edges of the stator guide-blades c terminate nearer the shaft than the edges of the adjacent wheel blades b, with the result that the motive fluid entering the guide-blades c has a suction action on the space e, and on passing out has a pressure action on the space between the two wheels, thereby equalizing the pressure throughout the space to a value p<11> lying between the values p<2>, p<3> on either side of the guide-blades, and obviating the need for a partition. The wheel rim may be provided with projections h, i for deflecting the stream of motive fluid towards and awav from the guide members. The axial thrust is taken by thrust bearing, or by a balance piston, or by a duplex arrangement of the turbine. Impulse stages without partitions may be combined in the same casing with either impulse stages fitted with partitions, a reaction turbine of the kind described in Specification 175,971, or with both. As described in Specification 124,734, in connection with reaction turbines, the guide blades may be made much wider than the wheel blades to permit of increased width for the wheel hubs.
GB31845/22A 1921-11-26 1922-11-21 Improvements in multi-stage impulse turbines for steam or gas Expired GB189457A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH99370T 1921-11-26

Publications (1)

Publication Number Publication Date
GB189457A true GB189457A (en) 1923-03-01

Family

ID=4357283

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31845/22A Expired GB189457A (en) 1921-11-26 1922-11-21 Improvements in multi-stage impulse turbines for steam or gas

Country Status (3)

Country Link
CH (1) CH99370A (en)
FR (1) FR558836A (en)
GB (1) GB189457A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2429914A1 (en) * 1978-06-26 1980-01-25 United Technologies Corp BLADE HEAD GASKET FOR AN AXIAL FLOW ROTARY MACHINE
CN114857044A (en) * 2022-05-13 2022-08-05 清华大学 Full-air-floatation supported multistage counter-rotating axial flow compressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2429914A1 (en) * 1978-06-26 1980-01-25 United Technologies Corp BLADE HEAD GASKET FOR AN AXIAL FLOW ROTARY MACHINE
US4238170A (en) * 1978-06-26 1980-12-09 United Technologies Corporation Blade tip seal for an axial flow rotary machine
CN114857044A (en) * 2022-05-13 2022-08-05 清华大学 Full-air-floatation supported multistage counter-rotating axial flow compressor
CN114857044B (en) * 2022-05-13 2023-09-12 清华大学 Multi-stage convection shaft air compressor with full air-floating support

Also Published As

Publication number Publication date
FR558836A (en) 1923-09-03
CH99370A (en) 1923-05-16

Similar Documents

Publication Publication Date Title
GB1077251A (en) Improvements in elastic fluid turbine rotor cooling
GB1457634A (en) Converging-diverging supersonic nozzles
GB189457A (en) Improvements in multi-stage impulse turbines for steam or gas
US2121645A (en) Elastic fluid turbine
SU591619A1 (en) Centrifugal compressor runner
US2269235A (en) Multistage elastic fluid turbine
GB1013835A (en) Improvements in or relating to axial-flow turbines, compressors and exhausters
US2300758A (en) Blading and balancing piston arrangement
US2552138A (en) Dual rotation turbine
US1324664A (en) Benjamin graemiger
GB138070A (en) Improvements in steam or gas-turbines of the multistage, axial flow, impulse disc-type
GB279065A (en) Cooling arrangement for electric motors driving multi-stage force pumps
GB662517A (en) Inlet guide rotor for radial-flow compressors
US2396159A (en) Elastic fluid turbine
US2837309A (en) Turbine
US1235992A (en) Steam-turbine.
US848486A (en) Elastic-fluid turbine.
GB567890A (en) Improvements in or relating to centrifugal compressors and centrifugal pumps with closed rotor wheels
GB179043A (en) Improved process of and apparatus for production of high vacua
GB191010675A (en) Improvements in Turbine Engines.
US1119731A (en) Multistage elastic-fluid turbine.
GB191003322A (en) Improvements in Elastic Fluid Turbines.
US1618596A (en) Steam turbine
GB172292A (en) Improvements in centrifugal pumps or blowers and similar machines
GB191005219A (en) Ahead and Astern Turbines.