GB1020896A - Improvements in or relating to impellers for compressors - Google Patents
Improvements in or relating to impellers for compressorsInfo
- 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
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.
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)
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)
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)
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 |
-
1961
- 1961-10-27 CH CH1244161A patent/CH394470A/en unknown
- 1961-12-07 DE DE1961E0022082 patent/DE1292775B/en active Pending
-
1962
- 1962-10-29 GB GB4084662A patent/GB1020896A/en not_active Expired
Cited By (7)
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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