FR917671A - Procédé d'amélioration du coefficient de frottement des carènes - Google Patents
Procédé d'amélioration du coefficient de frottement des carènesInfo
- Publication number
- FR917671A FR917671A FR917671DA FR917671A FR 917671 A FR917671 A FR 917671A FR 917671D A FR917671D A FR 917671DA FR 917671 A FR917671 A FR 917671A
- Authority
- FR
- France
- Prior art keywords
- hulls
- friction
- coefficient
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
- B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
- B63B1/38—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
- B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
- B63B1/38—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes
- B63B2001/387—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes using means for producing a film of air or air bubbles over at least a significant portion of the hull surface
-
- 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
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR917671T | 1945-07-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR917671A true FR917671A (fr) | 1947-01-17 |
Family
ID=9423925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR917671D Expired FR917671A (fr) | 1945-07-18 | 1945-07-18 | Procédé d'amélioration du coefficient de frottement des carènes |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR917671A (fr) |
-
1945
- 1945-07-18 FR FR917671D patent/FR917671A/fr not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR990224A (fr) | Procédé d'amélioration des propriétés élastiques des polysiloxanes organosubstitués | |
FR933098A (fr) | Procédé d'affinage des métaux | |
FR970529A (fr) | Procédé de préparation d'organohalosilanes | |
FR945183A (fr) | Procédé de production de c-nitrosoarylamines | |
FR920144A (fr) | Procédé d'amélioration des qualités du méthacrylate de méthyle polymérisé | |
FR949405A (fr) | Procédé de purification de l'acrylonitrile | |
FR917671A (fr) | Procédé d'amélioration du coefficient de frottement des carènes | |
FR929785A (fr) | Procédé et composition pour le rafraichissement de l'air | |
SU68180A1 (ru) | Приспособленце дл непрерывного очесывани кардной поверхности чесальной машины | |
FR914826A (fr) | Procédé de préparation de para-aminobenzènesulfamido-2-pyrimidine | |
FR925999A (fr) | Procédé de préparation d'amidines | |
FR966218A (fr) | Procédé pour la préparation de nitriles et plus particulièrement du 1-4-dicyano-2-butène | |
FR952115A (fr) | Procédé perfectionné d'émaillage | |
FR1005867A (fr) | Procédé de production d'enduits ou revêtements réducteurs de la réflexion | |
CH258595A (fr) | Procédé pour améliorer l'état de surface de pièces métalliques. | |
FR938886A (fr) | Procédé d'usinage des métaux | |
FR918692A (fr) | Procédé d'isomérisation des hydrocarbures | |
FR917360A (fr) | Procédé d'isomérisation | |
FR998396A (fr) | Procédé d'affinage du magnésium | |
FR1005495A (fr) | Procédé de cémentation de l'acier | |
FR952850A (fr) | Perfectionnement au procédé de cémentation des métaux ferreux | |
FR55233E (fr) | Procédé d'épuration de l'acier | |
FR1013500A (fr) | Procédé de préparation de phénoxyamidines | |
FR927114A (fr) | Procédé d'alkylation | |
FR918594A (fr) | Procédé pour l'extraction du magnésium |