FR794841A - Perfectionnements apportés aux surfaces travaillant sur les fluides: pales d'hélices, plans d'aéroplanes, etc. - Google Patents

Perfectionnements apportés aux surfaces travaillant sur les fluides: pales d'hélices, plans d'aéroplanes, etc.

Info

Publication number
FR794841A
FR794841A FR794841DA FR794841A FR 794841 A FR794841 A FR 794841A FR 794841D A FR794841D A FR 794841DA FR 794841 A FR794841 A FR 794841A
Authority
FR
France
Prior art keywords
airplanes
planes
fluids
improvements made
propeller blades
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
Joseph Marie Baudry
Jeanne Augustine Gascoin
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 FR794841A publication Critical patent/FR794841A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
    • B64C21/10—Influencing air flow over aircraft surfaces by affecting boundary layer flow using other surface properties, e.g. roughness
    • 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)
FR794841D 1934-11-28 1934-11-28 Perfectionnements apportés aux surfaces travaillant sur les fluides: pales d'hélices, plans d'aéroplanes, etc. Expired FR794841A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR794841T 1934-11-28

Publications (1)

Publication Number Publication Date
FR794841A true FR794841A (fr) 1936-02-26

Family

ID=9234293

Family Applications (1)

Application Number Title Priority Date Filing Date
FR794841D Expired FR794841A (fr) 1934-11-28 1934-11-28 Perfectionnements apportés aux surfaces travaillant sur les fluides: pales d'hélices, plans d'aéroplanes, etc.

Country Status (1)

Country Link
FR (1) FR794841A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800291A (en) * 1950-10-24 1957-07-23 Stephens Arthur Veryan Solid boundary surface for contact with a relatively moving fluid medium
US3776363A (en) * 1971-05-10 1973-12-04 A Kuethe Control of noise and instabilities in jet engines, compressors, turbines, heat exchangers and the like
US4776535A (en) * 1986-12-29 1988-10-11 United Technologies Corporation Convoluted plate to reduce base drag
US4789117A (en) * 1986-12-29 1988-12-06 United Technologies Corporation Bodies with reduced base drag
US4813635A (en) * 1986-12-29 1989-03-21 United Technologies Corporation Projectile with reduced base drag
US4813633A (en) * 1986-12-29 1989-03-21 United Technologies Corporation Airfoil trailing edge
US4830315A (en) * 1986-04-30 1989-05-16 United Technologies Corporation Airfoil-shaped body
US5088665A (en) * 1989-10-31 1992-02-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Serrated trailing edges for improving lift and drag characteristics of lifting surfaces
US5110560A (en) * 1987-11-23 1992-05-05 United Technologies Corporation Convoluted diffuser
DE4208751A1 (de) * 1992-02-27 1993-11-11 Fritz Karl Hausser Gezahnte Fronten, Kanten oder Ränder als Verfahren zur Verringerung des Widerstandes von gasförmige und flüssige Gegenstände
EP0850832A1 (fr) * 1996-12-09 1998-07-01 Orlev Scientific Computing Limited Procédé et dispositif pour régler la turbulence dans les couches limites et autres champs d'écoulement à proximité des parois
WO2007065434A1 (fr) * 2005-12-05 2007-06-14 Lm Glasfiber A/S Pale pour rotor d’aérogénérateur

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800291A (en) * 1950-10-24 1957-07-23 Stephens Arthur Veryan Solid boundary surface for contact with a relatively moving fluid medium
US3776363A (en) * 1971-05-10 1973-12-04 A Kuethe Control of noise and instabilities in jet engines, compressors, turbines, heat exchangers and the like
US4830315A (en) * 1986-04-30 1989-05-16 United Technologies Corporation Airfoil-shaped body
US4789117A (en) * 1986-12-29 1988-12-06 United Technologies Corporation Bodies with reduced base drag
US4813635A (en) * 1986-12-29 1989-03-21 United Technologies Corporation Projectile with reduced base drag
US4813633A (en) * 1986-12-29 1989-03-21 United Technologies Corporation Airfoil trailing edge
US4776535A (en) * 1986-12-29 1988-10-11 United Technologies Corporation Convoluted plate to reduce base drag
US5110560A (en) * 1987-11-23 1992-05-05 United Technologies Corporation Convoluted diffuser
US5088665A (en) * 1989-10-31 1992-02-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Serrated trailing edges for improving lift and drag characteristics of lifting surfaces
DE4208751A1 (de) * 1992-02-27 1993-11-11 Fritz Karl Hausser Gezahnte Fronten, Kanten oder Ränder als Verfahren zur Verringerung des Widerstandes von gasförmige und flüssige Gegenstände
EP0850832A1 (fr) * 1996-12-09 1998-07-01 Orlev Scientific Computing Limited Procédé et dispositif pour régler la turbulence dans les couches limites et autres champs d'écoulement à proximité des parois
US5833389A (en) * 1996-12-09 1998-11-10 Orlev Scientific Computing Ltd. Apparatus for controlling turbulence in boundary layer and other wall-bounded fluid flow fields
WO2007065434A1 (fr) * 2005-12-05 2007-06-14 Lm Glasfiber A/S Pale pour rotor d’aérogénérateur

Similar Documents

Publication Publication Date Title
FR820156A (fr) Balai d'essuie-glace
FR794841A (fr) Perfectionnements apportés aux surfaces travaillant sur les fluides: pales d'hélices, plans d'aéroplanes, etc.
DK51513C (da) Skovlhjul med svingelige Skovle.
FR791701A (fr) Perfectionnements aux ailes ou pales rotatives d'appareils de locomotion aérienne
FR804799A (fr) Perfectionnements relatifs aux aéronefs à pales autorotatives
FR768392A (fr) Carénage d'extrémité d'aile
ES137849A1 (es) HÉLICE AÉREA CON PALAS AUTOMáTICAMENTE DESPLAZABLES
FR735817A (fr) Perfectionnements apportés aux hélices de ventilateurs, etc.
FR770773A (fr) Mode d'entraînemement des hélices d'avions
FR791018A (fr) Perfectionnements apportés aux aéronefs, notamment aux avions marins
FR857742A (fr) Perfectionnements aux pales d'hélice
FR794200A (fr) Perfectionnements apportés aux joints des embases de pales d'hélices aériennes métalliques, et applications analogues
FR845829A (fr) Perfectionnements aux hélices à pales automatiquement orientables
FR794181A (fr) Perfectionnements apportés aux hélices d'avions
DK49727C (da) Propelblad.
FR848781A (fr) Pales d'hélice
FR829288A (fr) Dispositif pour faire varier le pas des pales d'hélices, particulièrement celles d'hélices d'avions
FR798274A (fr) Voilure d'avion
FR788373A (fr) Perfectionnements aux ailes d'avions
DK54997C (da) Barbermaskine med tilhørende Blad.
GR3882B (el) Ακονιον δια λεπιδας ξυραφιστικων μηχανων.
CH189552A (de) Propeller mit veränderlicher Einstellung der Flügel.
FR792109A (fr) Moyeu pour pales d'hélice de propulsion
ES137727A1 (es) Mejoras en la fabricación de hojas para afeitar.
FR855980A (fr) Perfectionnements aux pales d'hélices