FR2278003A1 - Axial flow turbomachine rotor - comprises coaxial rings with C shaped annular recesses between blade roots - Google Patents
Axial flow turbomachine rotor - comprises coaxial rings with C shaped annular recesses between blade rootsInfo
- Publication number
- FR2278003A1 FR2278003A1 FR7424775A FR7424775A FR2278003A1 FR 2278003 A1 FR2278003 A1 FR 2278003A1 FR 7424775 A FR7424775 A FR 7424775A FR 7424775 A FR7424775 A FR 7424775A FR 2278003 A1 FR2278003 A1 FR 2278003A1
- Authority
- FR
- France
- Prior art keywords
- axial flow
- shaped annular
- annular recesses
- blade roots
- turbomachine rotor
- 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.)
- Granted
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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
- F01D5/063—Welded rotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The rotor is made up of several rings (V1, V2, V3) welded together to form a complete assembly. Each ring comprises an annular location (12), widening out at the base to hold the rotor blades. Between two locations is an annular recess (16), used for lightening the structure. This recess is C-shaped and open at the side (20). The lower leg (V1b, V2b) has a single bevel edge and butts against another single bevel edge on the mating face of the next ring. The joint (18) is electron beam welded, access being provided by machining back (17) the second ring. The top leg (V1a, V2a) of the recess is left free.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7424775A FR2278003A1 (en) | 1974-07-11 | 1974-07-11 | Axial flow turbomachine rotor - comprises coaxial rings with C shaped annular recesses between blade roots |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7424775A FR2278003A1 (en) | 1974-07-11 | 1974-07-11 | Axial flow turbomachine rotor - comprises coaxial rings with C shaped annular recesses between blade roots |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2278003A1 true FR2278003A1 (en) | 1976-02-06 |
FR2278003B1 FR2278003B1 (en) | 1978-02-17 |
Family
ID=9141364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7424775A Granted FR2278003A1 (en) | 1974-07-11 | 1974-07-11 | Axial flow turbomachine rotor - comprises coaxial rings with C shaped annular recesses between blade roots |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2278003A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2940768A1 (en) * | 2009-01-06 | 2010-07-09 | Snecma | PROCESS FOR MANUFACTURING TURBOMACHINE COMPRESSOR DRUM |
FR3091894A1 (en) * | 2019-01-18 | 2020-07-24 | Safran Aicraft Engines | TURBOMACHINE STATOR CIRCULAR VIROLE WITH MONOBLOC STRUCTURE, CARRIER OF A STAGE OF FIXED BLADES |
-
1974
- 1974-07-11 FR FR7424775A patent/FR2278003A1/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2940768A1 (en) * | 2009-01-06 | 2010-07-09 | Snecma | PROCESS FOR MANUFACTURING TURBOMACHINE COMPRESSOR DRUM |
FR3091894A1 (en) * | 2019-01-18 | 2020-07-24 | Safran Aicraft Engines | TURBOMACHINE STATOR CIRCULAR VIROLE WITH MONOBLOC STRUCTURE, CARRIER OF A STAGE OF FIXED BLADES |
Also Published As
Publication number | Publication date |
---|---|
FR2278003B1 (en) | 1978-02-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licenses | ||
ST | Notification of lapse |