GB1020896A - Improvements in or relating to impellers for compressors - Google Patents

Improvements in or relating to impellers for compressors

Info

Publication number
GB1020896A
GB1020896A GB4084662A GB4084662A GB1020896A GB 1020896 A GB1020896 A GB 1020896A GB 4084662 A GB4084662 A GB 4084662A GB 4084662 A GB4084662 A GB 4084662A GB 1020896 A GB1020896 A GB 1020896A
Authority
GB
United Kingdom
Prior art keywords
blade
blades
ring
tension element
rotation
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
GB4084662A
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.)
Sulzer Escher Wyss AG
Original Assignee
Escher Wyss AG
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 Escher Wyss AG filed Critical Escher Wyss AG
Publication of GB1020896A publication Critical patent/GB1020896A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F04D29/322—Blade mountings
    • F04D29/323—Blade mountings adjustable

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1,020,896. Axial-flow compressors. ESCHER WYSS A.G. Oct. 29, 1962 [Oct. 27, 1961], No. 40846/62. Heading F1C. In an impeller, for axial-flow compressors, having at least one stage with a ring of blades rotatably adjustable during operation, a blade mounting for absorbing centrifugal forces directed along the axes of rotation of the blades has, for each blade, a tension element which is elastically rotatable about the rotational axis of the associated blade and has its ends respectively connected to the associated blade root and the impeller hub in a non-rotatable manner relatively to the rotational axis of the blade. A compressor rotor, Figs. 1 and 2, has rim portions 6, 7 bolted together at 8 and provided with bores 9 containing bushes 10, 11 and the cylindrical roots 12 of rotor blades 13. Each root 12 is secured by a sleeve 25 to a tension element comprising plates 22 packed as shown or spaced apart singly or in groups. The other end of the tension element is secured to the impeller hub by a pin 26. The radially inner ends of the tension elements may instead merge into a common ring in which case the rim portions 6, 7 may be joined at a plane which passes through the axes of rotation of the blades. The ends of each tension element may be of fir-tree form, Fig. 9, located in fir-tree grooves in the impeller hub and blade root and positioned by pins 64, 65 and reinforcing plates 63. Each blade 13 has secured thereto, by a pin 47, Figs. 1 and 3, a forked lever 32 provided with an opening 33 for passage of an adjacent tension member. Each lever 32 is connected to an axially adjustable control ring 40 by a pin 39. A rod 43, provided with a bolt 44 located in an annular groove 45 in the ring 40, controls the axial position of the ring 40 and thereby the degree of rotation of the blades 13. Longitudinal grooves 46 permit removal of the rod 43 after rotation through 90 degrees. Each tension element may be pre-stressed about the rotational axis of its associated blade to continuously subject the blade to a torque opposing the torque exerted on the blade by centrifugal force.
GB4084662A 1961-10-27 1962-10-29 Improvements in or relating to impellers for compressors Expired GB1020896A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1244161A CH394470A (en) 1961-10-27 1961-10-27 Rotor for axial compressors with rotatable blades

Publications (1)

Publication Number Publication Date
GB1020896A true GB1020896A (en) 1966-02-23

Family

ID=4383053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4084662A Expired GB1020896A (en) 1961-10-27 1962-10-29 Improvements in or relating to impellers for compressors

Country Status (3)

Country Link
CH (1) CH394470A (en)
DE (1) DE1292775B (en)
GB (1) GB1020896A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281966A (en) * 1978-07-07 1981-08-04 Societe Nationale Industrielle Aerospatiale Multi-blade propellers
US4790722A (en) * 1985-12-18 1988-12-13 M A N Gutehoffnungshutte GmbH Multi-blade rotor for a windmill-type apparatus
GB2220990A (en) * 1988-06-02 1990-01-24 Gen Electric Aircraft engine fan blade mounting
US5165856A (en) * 1988-06-02 1992-11-24 General Electric Company Fan blade mount

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107428049B (en) * 2015-03-06 2019-11-01 本田技研工业株式会社 Method for manufacturing impeller

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB590141A (en) * 1945-04-13 1947-07-09 Power Jets Res & Dev Ltd Improvements in and relating to variable pitch fans, axial flow compressors and the like
GB449664A (en) * 1934-12-06 1936-07-01 Anonima Aeroplani Caproni Soc Improvements in air propellers with variable pitch
DE675377C (en) * 1936-07-11 1939-05-06 Kloeckner Humboldt Deutz Akt G Screw fan
DE870003C (en) * 1943-03-17 1953-03-09 Voith Gmbh J M Mechanical adjustment device for axial fan
US2495434A (en) * 1946-05-17 1950-01-24 Joy Mfg Co Variable pitch propeller
US2844303A (en) * 1952-08-27 1958-07-22 Nordisk Ventilator Axial blowers or fans
FR1149452A (en) * 1953-08-06 1957-12-26 Neyrpic Ets Turbo-machine with automatic speed control
DE1088659B (en) * 1959-06-26 1960-09-08 Dipl Berging Albrecht Graefer Fan with adjustable blades

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281966A (en) * 1978-07-07 1981-08-04 Societe Nationale Industrielle Aerospatiale Multi-blade propellers
US4790722A (en) * 1985-12-18 1988-12-13 M A N Gutehoffnungshutte GmbH Multi-blade rotor for a windmill-type apparatus
GB2220990A (en) * 1988-06-02 1990-01-24 Gen Electric Aircraft engine fan blade mounting
US5102302A (en) * 1988-06-02 1992-04-07 General Electric Company Fan blade mount
GB2220990B (en) * 1988-06-02 1992-09-16 Gen Electric Aircraft engine blade mounting
US5165856A (en) * 1988-06-02 1992-11-24 General Electric Company Fan blade mount
US5354176A (en) * 1988-06-02 1994-10-11 General Electric Company Fan blade mount

Also Published As

Publication number Publication date
CH394470A (en) 1965-06-30
DE1292775B (en) 1969-04-17

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