GB1187076A - Improvements in Gas Turbine Engines and Compressor Blades Therefor. - Google Patents
Improvements in Gas Turbine Engines and Compressor Blades Therefor.Info
- Publication number
- GB1187076A GB1187076A GB3959267A GB3959267A GB1187076A GB 1187076 A GB1187076 A GB 1187076A GB 3959267 A GB3959267 A GB 3959267A GB 3959267 A GB3959267 A GB 3959267A GB 1187076 A GB1187076 A GB 1187076A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blades
- serrations
- gas turbine
- tips
- degrees
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1,187,076. Axial-flow compressor blades. GENERAL ELECTRIC CO. Aug.30, 1967 [Dec.1, 1966], No.39592/67. Heading F1C and F1T. In order to reduce the errosion effects of rain or dust entrained by the air entering an axial-flow compressor for a gas turbine engine e.g. of the turbofan type, the compressor rotor or stator blades of aerofoil cross-section have their leading edges serrated at least in the regions remote from the blade roots. The angle α, Fig.4, of the serrations is between 30 and 75 degrees, and the angle # is between 0 and 30 degrees. The surfaces 42, Figs.3 and 4, are substantially flat at the tips of the serrations but become crowned towards the roots thereof. The surfaces 40 are substantially of the theoretical curvature required for the leading edges so that the aerodynamic characteristics of the blades are not impaired. In an alternative embodiment, Fig.9 (not shown), particularly when the blades are of laminated plastics, the surfaces (40) are pointed in the regions of the tips of the serrations.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US59842866A | 1966-12-01 | 1966-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1187076A true GB1187076A (en) | 1970-04-08 |
Family
ID=24395500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3959267A Expired GB1187076A (en) | 1966-12-01 | 1967-08-30 | Improvements in Gas Turbine Engines and Compressor Blades Therefor. |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE702035A (en) |
| CH (1) | CH466641A (en) |
| DE (1) | DE1628267A1 (en) |
| GB (1) | GB1187076A (en) |
| NL (1) | NL6711968A (en) |
| SE (1) | SE319857B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927046A (en) * | 2012-11-22 | 2013-02-13 | 威海克莱特菲尔风机股份有限公司 | Low-noise efficient impeller of axial-flow fan |
| CN103835995A (en) * | 2012-11-22 | 2014-06-04 | 威海克莱特菲尔风机股份有限公司 | Large axial flow impeller provided with blades with tooth-shaped front edges |
| US9249666B2 (en) | 2011-12-22 | 2016-02-02 | General Electric Company | Airfoils for wake desensitization and method for fabricating same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3234011A1 (en) * | 1982-09-14 | 1984-03-15 | Braun Ag, 6000 Frankfurt | Axial fan |
| CN115673669B (en) * | 2022-11-11 | 2024-05-14 | 中国航发沈阳黎明航空发动机有限责任公司 | Repair method for low-pressure turbine working She Pianju tooth crown |
-
1967
- 1967-07-28 BE BE702035D patent/BE702035A/xx unknown
- 1967-08-24 SE SE1185167A patent/SE319857B/xx unknown
- 1967-08-30 DE DE19671628267 patent/DE1628267A1/en active Pending
- 1967-08-30 GB GB3959267A patent/GB1187076A/en not_active Expired
- 1967-08-31 NL NL6711968A patent/NL6711968A/xx unknown
- 1967-09-01 CH CH1226667A patent/CH466641A/en unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9249666B2 (en) | 2011-12-22 | 2016-02-02 | General Electric Company | Airfoils for wake desensitization and method for fabricating same |
| CN102927046A (en) * | 2012-11-22 | 2013-02-13 | 威海克莱特菲尔风机股份有限公司 | Low-noise efficient impeller of axial-flow fan |
| CN103835995A (en) * | 2012-11-22 | 2014-06-04 | 威海克莱特菲尔风机股份有限公司 | Large axial flow impeller provided with blades with tooth-shaped front edges |
| CN102927046B (en) * | 2012-11-22 | 2015-04-29 | 威海克莱特菲尔风机股份有限公司 | Low-noise efficient impeller of axial-flow fan |
| CN103835995B (en) * | 2012-11-22 | 2016-04-27 | 威海克莱特菲尔风机股份有限公司 | There is the large-scale axial-flow blower of profile of tooth leading edge blade |
Also Published As
| Publication number | Publication date |
|---|---|
| CH466641A (en) | 1968-12-15 |
| SE319857B (en) | 1970-01-26 |
| BE702035A (en) | 1968-01-02 |
| NL6711968A (en) | 1968-06-04 |
| DE1628267A1 (en) | 1971-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |