GB1163328A - Improvements in and relating to Machines having Bladed Rotors - Google Patents

Improvements in and relating to Machines having Bladed Rotors

Info

Publication number
GB1163328A
GB1163328A GB55929/66A GB5592966A GB1163328A GB 1163328 A GB1163328 A GB 1163328A GB 55929/66 A GB55929/66 A GB 55929/66A GB 5592966 A GB5592966 A GB 5592966A GB 1163328 A GB1163328 A GB 1163328A
Authority
GB
United Kingdom
Prior art keywords
blade
bores
face
opening
relating
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
GB55929/66A
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
Original Assignee
BBC Brown Boveri AG Switzerland
Brown Boveri und Cie AG Switzerland
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, Brown Boveri und Cie AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of GB1163328A publication Critical patent/GB1163328A/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
    • F01D11/10—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using sealing fluid, e.g. steam
    • 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
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F01D5/145—Means for influencing boundary layers or secondary circulations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • F04D29/324—Blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
    • F04D29/682—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid extraction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
    • F04D29/684—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid injection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/009—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by bleeding, by passing or recycling fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
    • F04D27/0215—Arrangements therefor, e.g. bleed or by-pass valves
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1,163,328. Boundary layer control. BROWN, BOVERI & CO. Ltd. 14 Dec., 1966 [16 Dec., 1965], No. 55929/66. Heading F2R. The stable-working speed-range of an axialflow compressor (blower, fan or pump) is extended by at least some of the blades d having radial bores b which each have an opening a into one face of the blade and a further opening c into the same face, so that the boundary layer can be sucked in through holes a due to the centrifugal force on the air in bores b. The openings a may either all be in the suction or pressure side of the blade d, or alternate between the two sides, Fig. 4 (not shown). The openings a and c may be either normal to the face of the blade d or inclined as in Fig. 5. There may be further bores b each having an inlet a, but having a radial outlet opening into the gap g.
GB55929/66A 1965-12-16 1966-12-14 Improvements in and relating to Machines having Bladed Rotors Expired GB1163328A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB85002A DE1301432B (en) 1965-12-16 1965-12-16 Arrangement to enlarge the stable working area of single and multi-stage axial compressors, blowers, fans and pumps by means of boundary layer removal

Publications (1)

Publication Number Publication Date
GB1163328A true GB1163328A (en) 1969-09-04

Family

ID=6982706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55929/66A Expired GB1163328A (en) 1965-12-16 1966-12-14 Improvements in and relating to Machines having Bladed Rotors

Country Status (4)

Country Link
CH (1) CH450611A (en)
DE (1) DE1301432B (en)
FR (1) FR1505043A (en)
GB (1) GB1163328A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187261A (en) * 1986-01-06 1987-09-03 Secr Defence Controlling boundary layer
EP1536147A2 (en) 2003-11-26 2005-06-01 Rolls-Royce Deutschland Ltd & Co KG Turbo compressor or pump with fluid injection to influence the boundary layer
WO2007036203A1 (en) * 2005-09-30 2007-04-05 Mtu Aero Engines Gmbh Moving blade for an axial turbomachine
EP2249045A3 (en) * 2003-11-26 2011-06-29 Rolls-Royce Deutschland Ltd & Co KG Compressor or pump with fluid extraction
CN105650005A (en) * 2016-03-23 2016-06-08 上海钛灵特压缩机有限公司 Symmetrically arranged centrifugal compressor
CN105650026A (en) * 2016-03-23 2016-06-08 上海钛灵特压缩机有限公司 Teeth driving centrifugal compressor impeller
FR3065497A1 (en) * 2017-04-21 2018-10-26 Safran Aircraft Engines AIR EJECTION CHANNEL TOWARDING THE TOP AND TILT DOWN OF A TURBOMACHINE BLADE
IT201900003771A1 (en) * 2019-03-14 2020-09-14 Cofimco Srl AXIAL FAN WITH BLADE TERMINAL ELEMENT

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5904470A (en) * 1997-01-13 1999-05-18 Massachusetts Institute Of Technology Counter-rotating compressors with control of boundary layers by fluid removal
DE10233032A1 (en) * 2002-07-20 2004-01-29 Rolls-Royce Deutschland Ltd & Co Kg Fluid flow machine with integrated fluid circulation system
FR2927673B1 (en) * 2008-02-14 2013-10-11 Snecma BLOWER DAWN WITH FOOT SUCTION AND HEAD BLOWING
DE102014009735B4 (en) * 2014-07-02 2021-07-15 Rosswag Gmbh Impeller of a turbomachine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE875984C (en) * 1940-10-22 1953-05-07 Westfalia Dinnendahl Groeppel Formation of the flow channels in the impellers of radial or semi-radial blowers
FR941756A (en) * 1941-06-23 1949-01-20 Two-bladed pump with axial discharge
GB605363A (en) * 1943-06-11 1948-07-21 Edward Archibald Stalker Axial flow blower
US2344835A (en) * 1943-08-07 1944-03-21 Edward A Stalker Pump
US2738921A (en) * 1950-11-22 1956-03-20 United Aircraft Corp Boundary layer control apparatus for compressors
FR1087323A (en) * 1953-07-21 1955-02-23 Rateau Soc Improvements to axial fluid compression machines

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187261A (en) * 1986-01-06 1987-09-03 Secr Defence Controlling boundary layer
EP1536147A2 (en) 2003-11-26 2005-06-01 Rolls-Royce Deutschland Ltd & Co KG Turbo compressor or pump with fluid injection to influence the boundary layer
EP1536147A3 (en) * 2003-11-26 2008-04-09 Rolls-Royce Deutschland Ltd & Co KG Turbo compressor or pump with fluid injection to influence the boundary layer
EP2226511A3 (en) * 2003-11-26 2011-06-15 Rolls-Royce Deutschland Ltd & Co KG Turbo compressor or pump with fluid injection to influence the boundary layer
EP2249045A3 (en) * 2003-11-26 2011-06-29 Rolls-Royce Deutschland Ltd & Co KG Compressor or pump with fluid extraction
WO2007036203A1 (en) * 2005-09-30 2007-04-05 Mtu Aero Engines Gmbh Moving blade for an axial turbomachine
CN105650005A (en) * 2016-03-23 2016-06-08 上海钛灵特压缩机有限公司 Symmetrically arranged centrifugal compressor
CN105650026A (en) * 2016-03-23 2016-06-08 上海钛灵特压缩机有限公司 Teeth driving centrifugal compressor impeller
FR3065497A1 (en) * 2017-04-21 2018-10-26 Safran Aircraft Engines AIR EJECTION CHANNEL TOWARDING THE TOP AND TILT DOWN OF A TURBOMACHINE BLADE
IT201900003771A1 (en) * 2019-03-14 2020-09-14 Cofimco Srl AXIAL FAN WITH BLADE TERMINAL ELEMENT

Also Published As

Publication number Publication date
CH450611A (en) 1968-01-31
FR1505043A (en) 1967-12-08
DE1301432B (en) 1969-08-21

Similar Documents

Publication Publication Date Title
SE307216B (en)
GB1163328A (en) Improvements in and relating to Machines having Bladed Rotors
GB1266585A (en)
GB1482933A (en) Supersonic flow compressors
GB1093568A (en) Improvements in or relating to bladed rotors such as compressor rotors
GB1340937A (en) Turbomachinery rotors
FR2282548A1 (en) Blade for rotary fluid press. machine - is relieved on surface subject to depression to give centrifugal flow
GB1379075A (en) Radial flow turbo-machines
GB934141A (en) Improvements relating to flow machines
GB680458A (en) Improvements in and relating to boundary layer control
GB937987A (en)
JPS57110800A (en) Axial-flow type blower
GB524703A (en) Improvements in and relating to centrifugal fans
GB1013835A (en) Improvements in or relating to axial-flow turbines, compressors and exhausters
GB587514A (en) Improvements relating to centrifugal compressors, pumps and the like
JPS62271995A (en) Multi blade type impeller
GB594537A (en) Improvements in centrifugal type impellers for compressors and the like
GB866793A (en) Improvements in or relating to axial flow compressors
GB812273A (en) Improvements in and relating to turbines, compressors, blowers and fans
GB615219A (en) Improvements relating to rotary power conversion machines
GB1283696A (en) Improvements in or relating to multistage rotary fluid flow machines
GB843979A (en) Improvements in or relating to centrifugal fan rotors embodying airfoil blades
GB726973A (en) A blade for the axial-flow inlet part of radial flow blowers or centrifugal pumps
GB724600A (en) Improvements in or relating to centrifugal fans
GB841164A (en) Improvements in or relating to centrifugal fan embodying airfoil blades

Legal Events

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