CH450611A - Arrangement to enlarge the stable working area of single and multi-stage axial compressors, blowers, fans and pumps by removing boundary layers - Google Patents

Arrangement to enlarge the stable working area of single and multi-stage axial compressors, blowers, fans and pumps by removing boundary layers

Info

Publication number
CH450611A
CH450611A CH1783766A CH1783766A CH450611A CH 450611 A CH450611 A CH 450611A CH 1783766 A CH1783766 A CH 1783766A CH 1783766 A CH1783766 A CH 1783766A CH 450611 A CH450611 A CH 450611A
Authority
CH
Switzerland
Prior art keywords
blowers
enlarge
fans
pumps
arrangement
Prior art date
Application number
CH1783766A
Other languages
German (de)
Inventor
Simon Manfred
Original Assignee
Bbc Brown Boveri & Cie
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 & Cie filed Critical Bbc Brown Boveri & Cie
Publication of CH450611A publication Critical patent/CH450611A/en

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)
CH1783766A 1965-12-16 1966-12-14 Arrangement to enlarge the stable working area of single and multi-stage axial compressors, blowers, fans and pumps by removing boundary layers CH450611A (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
CH450611A true CH450611A (en) 1968-01-31

Family

ID=6982706

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1783766A CH450611A (en) 1965-12-16 1966-12-14 Arrangement to enlarge the stable working area of single and multi-stage axial compressors, blowers, fans and pumps by removing boundary layers

Country Status (4)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998030803A1 (en) * 1997-01-13 1998-07-16 Massachusetts Institute Of Technology Counter-rotating compressors with control of boundary layers by fluid removal
EP2226510A3 (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

Families Citing this family (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
DE10233032A1 (en) * 2002-07-20 2004-01-29 Rolls-Royce Deutschland Ltd & Co Kg Fluid flow machine with integrated fluid circulation system
DE10355240A1 (en) * 2003-11-26 2005-07-07 Rolls-Royce Deutschland Ltd & Co Kg Fluid flow machine with fluid removal
DE102005047016A1 (en) * 2005-09-30 2007-04-05 Mtu Aero Engines Gmbh Moving blade for axial turbomachine has flow duct formed so that discharge openings lie radially further outside intake openings whereby driving pressure gradient at relevant operating points is large enough to permit suction and discharge
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
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
CN105650005A (en) * 2016-03-23 2016-06-08 上海钛灵特压缩机有限公司 Symmetrically arranged centrifugal compressor
FR3065497B1 (en) * 2017-04-21 2019-07-05 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

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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998030803A1 (en) * 1997-01-13 1998-07-16 Massachusetts Institute Of Technology Counter-rotating compressors with control of boundary layers by fluid removal
EP2226510A3 (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

Also Published As

Publication number Publication date
DE1301432B (en) 1969-08-21
GB1163328A (en) 1969-09-04
FR1505043A (en) 1967-12-08

Similar Documents

Publication Publication Date Title
FI47925C (en) Screw rotor type compressor in which liquid is sprayed into the working space
CH450611A (en) Arrangement to enlarge the stable working area of single and multi-stage axial compressors, blowers, fans and pumps by removing boundary layers
CH478994A (en) Blade arrangement on axial compressor, blower or fan
CH553923A (en) MULTI-STAGE TURBO COMPRESSOR WITH INTERCOOLING OF THE MEDIUM TO BE COMPRESSED.
FR1376714A (en) Improvements to hermetic reciprocating displacement compressors, in particular reciprocating ones
CH452098A (en) Multi-stage axial compressor
CH540433A (en) Multi-stage dry running high pressure piston compressor
IT950870B (en) DEVICE TO ADJUST THE BLADES OF AXIAL FANS IN OPERATION AND FAN MANUFACTURING SYSTEM EQUIPPED WITH THIS DEVICE
DK109184C (en) Multi-stage axial pump.
GB540707A (en) Improvements relating to multi-stage axial flow fans, pumps and the like
CH400434A (en) Rotary piston vacuum pump with vertically arranged rotor
CH510202A (en) Axial compressor with adjustable stator blades
FR1436794A (en) Improvements to impellers of fans, pumps or the like
CH429007A (en) Impeller for centrifugal compressors with axial inlet
CH416919A (en) Turbo compressor unit
FR900706A (en) Improvements to pumps, fans and centrifugal compressors
FR1417269A (en) Improvements made to reciprocating to eccentric type pumps and compressors
FR1351130A (en) Improvements to rotary vane type air pumps
CH430933A (en) High pressure pump or compressor
FI52400C (en) Arrangement in the fan, especially in the fans of oil burners
FR84100E (en) Advanced Turbomolecular Vacuum Pump
FR1264126A (en) Improvements to pumps, fans and centrifugal compressors
CH410636A (en) Suction and pressure through-flow piston pump
AT249236B (en) Motor-driven suction pressure pump
FR1414802A (en) Protection of turbomachines against compressor pumping