FR737957A - Système améliorant la propulsion des mobiles dans les fluides - Google Patents

Système améliorant la propulsion des mobiles dans les fluides

Info

Publication number
FR737957A
FR737957A FR737957DA FR737957A FR 737957 A FR737957 A FR 737957A FR 737957D A FR737957D A FR 737957DA FR 737957 A FR737957 A FR 737957A
Authority
FR
France
Prior art keywords
mobiles
propulsion
fluids
system improving
improving
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
Application number
Other languages
English (en)
Inventor
Frederic-Dominique Ferral
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 filed Critical
Application granted granted Critical
Publication of FR737957A publication Critical patent/FR737957A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C23/00—Influencing air flow over aircraft surfaces, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
    • B64C21/02—Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C2230/00—Boundary layer controls
    • B64C2230/04—Boundary layer controls by actively generating fluid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C2230/00—Boundary layer controls
    • B64C2230/20—Boundary layer controls by passively inducing fluid flow, e.g. by means of a pressure difference between both ends of a slot or duct
    • 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
    • Y02T50/10—Drag reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
FR737957D 1931-09-26 1931-09-26 Système améliorant la propulsion des mobiles dans les fluides Expired FR737957A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR737957T 1931-09-26

Publications (1)

Publication Number Publication Date
FR737957A true FR737957A (fr) 1932-12-19

Family

ID=9132020

Family Applications (1)

Application Number Title Priority Date Filing Date
FR737957D Expired FR737957A (fr) 1931-09-26 1931-09-26 Système améliorant la propulsion des mobiles dans les fluides

Country Status (1)

Country Link
FR (1) FR737957A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992022459A1 (fr) * 1991-06-05 1992-12-23 Lemont Aircraft Corporation Systeme de propulsion a anneaux de poussee
US5393197A (en) * 1993-11-09 1995-02-28 Lemont Aircraft Corporation Propulsive thrust ring system
EP1827970A2 (fr) * 2004-12-23 2007-09-05 David Birkenstock Appareil, systeme et procede permettant de reduire la trainee
US8746624B2 (en) 2008-05-23 2014-06-10 David Birkenstock Boundary layer control system and methods thereof
US10204192B2 (en) 2007-09-17 2019-02-12 David T Birkenstock System and method for drag reduction

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5470202A (en) * 1989-10-10 1995-11-28 Lemont; Harold E. Propulsive thrust ring system
WO1992022459A1 (fr) * 1991-06-05 1992-12-23 Lemont Aircraft Corporation Systeme de propulsion a anneaux de poussee
US5393197A (en) * 1993-11-09 1995-02-28 Lemont Aircraft Corporation Propulsive thrust ring system
EP1827970A2 (fr) * 2004-12-23 2007-09-05 David Birkenstock Appareil, systeme et procede permettant de reduire la trainee
EP1827970A4 (fr) * 2004-12-23 2012-01-25 David Birkenstock Appareil, systeme et procede permettant de reduire la trainee
US9764823B2 (en) 2004-12-23 2017-09-19 David Birkenstock Apparatus, system and method for drag reduction
US10377471B2 (en) 2004-12-23 2019-08-13 David Birkenstock Apparatus, system and method for drag reduction
US10204192B2 (en) 2007-09-17 2019-02-12 David T Birkenstock System and method for drag reduction
US8746624B2 (en) 2008-05-23 2014-06-10 David Birkenstock Boundary layer control system and methods thereof

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