DE899180C - Propeller with guide wings - Google Patents
Propeller with guide wingsInfo
- Publication number
- DE899180C DE899180C DEW781D DEW0000781D DE899180C DE 899180 C DE899180 C DE 899180C DE W781 D DEW781 D DE W781D DE W0000781 D DEW0000781 D DE W0000781D DE 899180 C DE899180 C DE 899180C
- Authority
- DE
- Germany
- Prior art keywords
- propeller
- wing
- shaft axis
- screw
- ship
- 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
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
- B63H1/16—Propellers having a shrouding ring attached to blades
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Bei` -der Drehung. der Schraube im Wasser; namentlich- im Bereich höherer Drehzahlen, ist das Wasser an den äußeren Flügelpartien bestrebt, durch Fliehkräfte nach außen- radial abzustTömen. Durch diesen Vorgang mindert sich der Wirkungsgrad,der Schraube.When turning. the screw in the water; by name - in the area At higher speeds, the water on the outer wing parts tries to get through Centrifugal forces to flow outwards and radially. This process reduces the Efficiency, the screw.
Anordnungen und Vorschläge sind bekanntgeworden, um mittels einer oder mehrerer auf die Flügel aufgesetzter Rippen oder Leisten die Strömung in Richtung d-er Längsachse der Schraubenwelle umzulenken. '-Um diese Wirkung am günstigsten zu erreichen und, die Reibung ,des an den Flügeln entlang strömenden Wassers so gering wie möglich zu gestalten, .soll nach der Erfindung an der Außenkante der Druck-Saugseite jedes Schraubenflügels im Bereich seines größten Durchmessers ein zur Wellenachse konzentrischer, strömungsgünstig gestalteter Leitflügel angeordnet sein, der eine Länge von 1/4 bis 1/s der Schraubenflügellänge aufweist. Der Anschluß des Leitflügels an den Schraubenflügeln erfolgt in Form einer Parabel. Die Erzeugenide dieses Leitflügels ist so zur Wellensachse geneigt, daß sie mit der Wellenachse einen zur Saug-Seite hin offenen Winkel von etwa io bis i2°- ein. schließt.Arrangements and suggestions have become known in order to be able to use a or several ribs or strips placed on the wings, the flow in the direction To redirect the longitudinal axis of the propeller shaft. '-To this effect most favorable to achieve and, the friction, of the water flowing along the wings like this to make small as possible, .soll according to the invention on the outer edge of the Pressure-suction side of each screw wing in the area of its largest diameter Arranged to the shaft axis concentric, aerodynamically designed guide vanes which has a length of 1/4 to 1 / s of the screw wing length. The connection of the guide vane on the screw vanes takes the form of a parabola. The Generate this guide vane is inclined to the shaft axis that it coincides with the shaft axis an angle of about io to i2 ° open to the suction side. closes.
Die Zeichnung stellt ein Ausführungsbeispiel dar, und zwar zeigt Fig. i eine Ansicht eines Schräubenrflügels mit Leitflügel von hinten, Fig. 2 einen Schraubenflügel'i mit .auf der Saug-und Druckseite angeordnetem Leitflügel im Längsschnitt, Fig. 3 einen Schraubenflügel.mit Leitflügel nur auf der Druckseite im Läugssclintt: -- --. - -Am Schraubenflügel i sind Leitflügel :2 angeordnet. Der Übergang 3 vom Schraubenflügel zum Leitflügel ist parabelförmig. Die Erzeugende des Leitflügels 2a -auf --,der Saugseite .des Schraubenflügels ider Fig. 12: ist unter dem Winkel q. gegen die Wellenachse geneigt.The drawing represents an exemplary embodiment, namely, FIG. i a view of a screw wing with guide wing from the rear, FIG. 2 a screw wing i with guide vane arranged on the suction and pressure side in a longitudinal section, FIG. 3 a screw wing with guide wing only on the pressure side in the Läugssclintt: - -. - Guide vanes: 2 are arranged on the screw vane i. The transition 3 from the screw wing to the guide vane is parabolic. The generating line of the guide vane 2a -auf -, the Suction side .of the screw wing ider Fig. 12: is at the angle q. against the Inclined shaft axis.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW781D DE899180C (en) | 1942-10-21 | 1942-10-21 | Propeller with guide wings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW781D DE899180C (en) | 1942-10-21 | 1942-10-21 | Propeller with guide wings |
Publications (1)
Publication Number | Publication Date |
---|---|
DE899180C true DE899180C (en) | 1953-12-10 |
Family
ID=7590938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEW781D Expired DE899180C (en) | 1942-10-21 | 1942-10-21 | Propeller with guide wings |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE899180C (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4093402A (en) * | 1974-06-10 | 1978-06-06 | Theodoor Van Holten | Propeller or a set of wings for a wind mill |
US4288223A (en) * | 1979-11-02 | 1981-09-08 | Astilleros Espanoles, S.A. | Tubular duct for a ship propeller |
WO1991007313A1 (en) * | 1989-11-15 | 1991-05-30 | Stichting Voor De Technische Wetenschappen | Ship's propeller |
US5554006A (en) * | 1995-08-03 | 1996-09-10 | Liao; Hsien-Chin | Ceiling fan blade configuration having a concave blade periphery |
DE10246886A1 (en) * | 2002-10-08 | 2004-04-22 | Helmut Obieglo | Marine propeller screw blade has flow edge as wing or nozzle normal to screw blade right across blade for added hydrodynamicity. |
US20150203181A1 (en) * | 2013-12-17 | 2015-07-23 | RingProp Marine Ltd. | Marine propellers |
-
1942
- 1942-10-21 DE DEW781D patent/DE899180C/en not_active Expired
Non-Patent Citations (1)
Title |
---|
None * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4093402A (en) * | 1974-06-10 | 1978-06-06 | Theodoor Van Holten | Propeller or a set of wings for a wind mill |
US4288223A (en) * | 1979-11-02 | 1981-09-08 | Astilleros Espanoles, S.A. | Tubular duct for a ship propeller |
WO1991007313A1 (en) * | 1989-11-15 | 1991-05-30 | Stichting Voor De Technische Wetenschappen | Ship's propeller |
US5312228A (en) * | 1989-11-15 | 1994-05-17 | Stichting Voor De Technische Wetenschappen | Ship's propeller |
US5554006A (en) * | 1995-08-03 | 1996-09-10 | Liao; Hsien-Chin | Ceiling fan blade configuration having a concave blade periphery |
DE10246886A1 (en) * | 2002-10-08 | 2004-04-22 | Helmut Obieglo | Marine propeller screw blade has flow edge as wing or nozzle normal to screw blade right across blade for added hydrodynamicity. |
US20150203181A1 (en) * | 2013-12-17 | 2015-07-23 | RingProp Marine Ltd. | Marine propellers |
EP2902312A1 (en) * | 2013-12-17 | 2015-08-05 | RingProp Marine Ltd. | Marine propellers |
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