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 roots

Info

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
Application number
FR7424775A
Other languages
French (fr)
Other versions
FR2278003B1 (en
Inventor
Andre Emile Duclos
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.)
Safran Aircraft Engines SAS
Original Assignee
SNECMA SAS
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 SNECMA SAS filed Critical SNECMA SAS
Priority to FR7424775A priority Critical patent/FR2278003A1/en
Publication of FR2278003A1 publication Critical patent/FR2278003A1/en
Application granted granted Critical
Publication of FR2278003B1 publication Critical patent/FR2278003B1/fr
Granted legal-status Critical Current

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.
FR7424775A 1974-07-11 1974-07-11 Axial flow turbomachine rotor - comprises coaxial rings with C shaped annular recesses between blade roots Granted FR2278003A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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

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ST Notification of lapse