FR2254479A1 - - Google Patents

Info

Publication number
FR2254479A1
FR2254479A1 FR7440497A FR7440497A FR2254479A1 FR 2254479 A1 FR2254479 A1 FR 2254479A1 FR 7440497 A FR7440497 A FR 7440497A FR 7440497 A FR7440497 A FR 7440497A FR 2254479 A1 FR2254479 A1 FR 2254479A1
Authority
FR
France
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
FR7440497A
Other languages
French (fr)
Other versions
FR2254479B1 (en
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE2361852A external-priority patent/DE2361852A1/en
Priority claimed from DE2420709A external-priority patent/DE2420709A1/en
Application filed by Individual filed Critical Individual
Publication of FR2254479A1 publication Critical patent/FR2254479A1/fr
Application granted granted Critical
Publication of FR2254479B1 publication Critical patent/FR2254479B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B64C27/12—Rotor drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B64C27/08—Helicopters with two or more rotors
    • B64C27/10—Helicopters with two or more rotors arranged coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
    • B64D27/02—Aircraft characterised by the type or position of power plants
    • B64D27/24—Aircraft characterised by the type or position of power plants using steam or spring force
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
FR7440497A 1973-12-12 1974-12-10 Expired FR2254479B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2361852A DE2361852A1 (en) 1973-12-12 1973-12-12 Aircraft contra-rotating rotors - each is integral with one half of electric motor with poles working together
DE2420709A DE2420709A1 (en) 1974-04-29 1974-04-29 Aircraft contra-rotating rotors - each is integral with one half of electric motor with poles working together

Publications (2)

Publication Number Publication Date
FR2254479A1 true FR2254479A1 (en) 1975-07-11
FR2254479B1 FR2254479B1 (en) 1981-12-31

Family

ID=25766235

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7440497A Expired FR2254479B1 (en) 1973-12-12 1974-12-10

Country Status (9)

Country Link
JP (1) JPS50117199A (en)
BR (1) BR7410394D0 (en)
CA (1) CA1010005A (en)
FR (1) FR2254479B1 (en)
GB (1) GB1485390A (en)
IL (1) IL46124A (en)
IT (1) IT1027619B (en)
NL (1) NL7416134A (en)
SE (1) SE413302B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106167093A (en) * 2016-06-10 2016-11-30 张嘉良 A kind of novel Unmanned Aerial Vehicle Powerplants

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207026A (en) * 1978-09-29 1980-06-10 Kushto Oliver J Tethered lighter than air turbine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106167093A (en) * 2016-06-10 2016-11-30 张嘉良 A kind of novel Unmanned Aerial Vehicle Powerplants

Also Published As

Publication number Publication date
GB1485390A (en) 1977-09-08
IT1027619B (en) 1978-12-20
BR7410394D0 (en) 1975-09-16
IL46124A (en) 1978-07-31
CA1010005A (en) 1977-05-10
FR2254479B1 (en) 1981-12-31
NL7416134A (en) 1975-06-16
JPS50117199A (en) 1975-09-12
SE7415344L (en) 1975-06-13
SE413302B (en) 1980-05-19
IL46124A0 (en) 1975-02-10

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Legal Events

Date Code Title Description
ST Notification of lapse