GB704682A - Improvements in or relating to elastic fluid compressors - Google Patents
Improvements in or relating to elastic fluid compressorsInfo
- Publication number
- GB704682A GB704682A GB6976/51A GB697651A GB704682A GB 704682 A GB704682 A GB 704682A GB 6976/51 A GB6976/51 A GB 6976/51A GB 697651 A GB697651 A GB 697651A GB 704682 A GB704682 A GB 704682A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rows
- point
- blades
- row
- compressor
- 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
- F04D29/324—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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
- F04D29/544—Blade shapes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/70—Shape
Abstract
704,682. Axial-flow compressors. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. March 21, 1952 [March 22, 1931], No. 6976/51. Drawings to Specification. Class 110 (1) In an axial-flow compressor having aerofoil blades, the blades of the first row have a transverse section in the region of their mid-length in which the point of maximum camber or the point of maximum thickness, of both, is or are each disposed at a percentage of the chord of the section from its leading edge 'which is greater than the corresponding value for the blades of the last row. The purpose is to prevent stalling in the initial stages or choking in the later stages under part load conditions. Preferably, the variation from row to row through the compressor of the percentage distance from the leading edge of the point of maximum thickness occurs more rapidly in the later than in the earlier stages, and vice versa in the case of the point of maximum camber. For convenience in manufacture, the variation may be accommodated in a small number of steps. Thus, in a compressor comprising ten rows of blades, for the point of maximum thickness, the percentage distance may be 40 for the first six rows, 35 for the seventh and eighth rows and 30 for the ninth and tenth rows, while for the point of maximum camber, the percentage distance may be 50 for the first two rows, 45 for the third and fourth rows and 40 for the remaining rows. The theoretical considerations underlying the invention are set forth in the Specification
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6976/51A GB704682A (en) | 1951-03-22 | 1951-03-22 | Improvements in or relating to elastic fluid compressors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6976/51A GB704682A (en) | 1951-03-22 | 1951-03-22 | Improvements in or relating to elastic fluid compressors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB704682A true GB704682A (en) | 1954-02-24 |
Family
ID=9824277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6976/51A Expired GB704682A (en) | 1951-03-22 | 1951-03-22 | Improvements in or relating to elastic fluid compressors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB704682A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3032494A1 (en) * | 2015-02-06 | 2016-08-12 | Snecma | AUBE DE SOUFFLANTE |
| CN114444196A (en) * | 2021-12-06 | 2022-05-06 | 中国人民解放军空军工程大学 | Design method and device for self-adaptive gap adjustment variable-camber guide vane |
-
1951
- 1951-03-22 GB GB6976/51A patent/GB704682A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3032494A1 (en) * | 2015-02-06 | 2016-08-12 | Snecma | AUBE DE SOUFFLANTE |
| CN114444196A (en) * | 2021-12-06 | 2022-05-06 | 中国人民解放军空军工程大学 | Design method and device for self-adaptive gap adjustment variable-camber guide vane |
| CN114444196B (en) * | 2021-12-06 | 2024-04-23 | 中国人民解放军空军工程大学 | Design method and device for self-adaptive gap-adjusting variable camber guide vane |
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