FR2348386A1 - Rotating surface past which fluid flows without turbulence - covered with randomly open-celled material and used for liq. or gas sepn. - Google Patents
Rotating surface past which fluid flows without turbulence - covered with randomly open-celled material and used for liq. or gas sepn.Info
- Publication number
- FR2348386A1 FR2348386A1 FR7423060A FR7423060A FR2348386A1 FR 2348386 A1 FR2348386 A1 FR 2348386A1 FR 7423060 A FR7423060 A FR 7423060A FR 7423060 A FR7423060 A FR 7423060A FR 2348386 A1 FR2348386 A1 FR 2348386A1
- Authority
- FR
- France
- Prior art keywords
- liq
- turbulence
- covered
- fluid flows
- celled material
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/10—Influencing flow of fluids around bodies of solid material
- F15D1/12—Influencing flow of fluids around bodies of solid material by influencing the boundary layer
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
- F04D17/161—Shear force pumps
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
A rotating three-dimensional surface, to which the boundary layer of a moving fluid can adhere is composed of a randomly open-celled material as (pref. thin) covering for an impermeable support; the dia. increases in the downstream direction, at least for part of the length. The cellular covering may be plastic, ceramic or metal, and may line the support on the convex or concave side. The rotating covered surface may be used to make, e.g. a noise-free ventilator opening, or a turbulence-free flow accelerator, and is esp. useful for liq. or gas sepn. processes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7423060A FR2348386A1 (en) | 1974-06-25 | 1974-06-25 | Rotating surface past which fluid flows without turbulence - covered with randomly open-celled material and used for liq. or gas sepn. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7423060A FR2348386A1 (en) | 1974-06-25 | 1974-06-25 | Rotating surface past which fluid flows without turbulence - covered with randomly open-celled material and used for liq. or gas sepn. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2348386A1 true FR2348386A1 (en) | 1977-11-10 |
FR2348386B1 FR2348386B1 (en) | 1982-08-13 |
Family
ID=9140804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7423060A Granted FR2348386A1 (en) | 1974-06-25 | 1974-06-25 | Rotating surface past which fluid flows without turbulence - covered with randomly open-celled material and used for liq. or gas sepn. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2348386A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2596108A1 (en) * | 1986-03-22 | 1987-09-25 | Usui Kokusai Sangyo Kk | BLADES FOR FAN PROPELLER |
WO2004097203A1 (en) * | 2003-05-02 | 2004-11-11 | Krugmann, Hanns-Michael | Propulsion of vehicles or transport of a medium by means of a conical body |
WO2010145641A3 (en) * | 2009-06-15 | 2011-07-28 | Werner Henze | Water jet pump type drive, in particular for a flying object |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR40477E (en) * | 1931-07-04 | 1932-07-01 | Sprayer | |
US1903823A (en) * | 1928-12-28 | 1933-04-18 | Lougheed Victor | Aerodynamic surface |
GB705798A (en) * | 1951-05-10 | 1954-03-17 | Peter Schlumbohm | Ventilators |
-
1974
- 1974-06-25 FR FR7423060A patent/FR2348386A1/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1903823A (en) * | 1928-12-28 | 1933-04-18 | Lougheed Victor | Aerodynamic surface |
FR40477E (en) * | 1931-07-04 | 1932-07-01 | Sprayer | |
GB705798A (en) * | 1951-05-10 | 1954-03-17 | Peter Schlumbohm | Ventilators |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2596108A1 (en) * | 1986-03-22 | 1987-09-25 | Usui Kokusai Sangyo Kk | BLADES FOR FAN PROPELLER |
WO2004097203A1 (en) * | 2003-05-02 | 2004-11-11 | Krugmann, Hanns-Michael | Propulsion of vehicles or transport of a medium by means of a conical body |
WO2010145641A3 (en) * | 2009-06-15 | 2011-07-28 | Werner Henze | Water jet pump type drive, in particular for a flying object |
Also Published As
Publication number | Publication date |
---|---|
FR2348386B1 (en) | 1982-08-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |