DE813955C - With guide surfaces and a nozzle equipped propeller arrangement for ships - Google Patents
With guide surfaces and a nozzle equipped propeller arrangement for shipsInfo
- Publication number
- DE813955C DE813955C DEP2396A DEP0002396A DE813955C DE 813955 C DE813955 C DE 813955C DE P2396 A DEP2396 A DE P2396A DE P0002396 A DEP0002396 A DE P0002396A DE 813955 C DE813955 C DE 813955C
- Authority
- DE
- Germany
- Prior art keywords
- guide surfaces
- nozzle
- ships
- propeller arrangement
- propeller
- 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
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Prevention Of Electric Corrosion (AREA)
Description
Nach dem Hauptpatent go8679 ist die Schiffsschraube mit einer Düse derart ausgerüstet, daß die vordere Stirnfläche der Düse in der Mittelebene der Schraube oder, in Strömungsrichtung gesehen, dahinter liegt und daß innerhalb der Düse mehrere, vorzugsweise zwei, z. B. aus Blechstreifen gefertigte achsparallele Leitflächen liegen, die sich in radialer Richtung von der Düsenwand bis zur Düsenachse'erstrecken und deren der Schraube zugekehrte Kanten entgegen der Schraubendrehrichtung aufgebogen sind.According to the main patent go8679, the propeller is with a nozzle Equipped so that the front face of the nozzle in the median plane of the Screw or, seen in the direction of flow, lies behind it and that within the Nozzle several, preferably two, e.g. B. made of sheet metal strips axially parallel There are guide surfaces which extend in the radial direction from the nozzle wall to the nozzle axis and their edges facing the screw are bent up counter to the direction of screw rotation are.
Die Wirkung dieser Einrichtung wird erheblich verbessert, wenn erfindungsgemäß vor der Schiffsschraube zusätzlich zwei Leitflächen angeordnet sind, die am Hintersteven des Schiffes in einer waagerechten, durch die Schraubenachse verlaufenden Ebene angebracht sind. Diese Leitflächen haben vorzugsweise einen tropfenförmigen Querschnitt. Die Wirkung der Anordnung wird weiterhin dadurch verbessert, daß die in der Düse liegenden Leitflächen ebenfalls einen tropfenförmigen Querschnitt erhalten.The effect of this device is considerably improved if according to the invention In front of the propeller, there are also two guide surfaces arranged on the stern stem of the ship in a horizontal plane running through the screw axis are attached. These guide surfaces preferably have a teardrop-shaped cross section. The effect of the arrangement is further improved by the fact that the in the nozzle lying guide surfaces also receive a teardrop-shaped cross-section.
In der Zeichnung ist eine Ausführungsform gemäß der Erfindung in drei Abbildungen dargestellt, und zwar zeigt Abb. i eine Ansicht von hinten, Abb. 2 eine Seitenansicht und Abb. 3 eine Ansicht von unten. Vor der gemäß dem Hauptpatent angeordneten Düse i sind am Hintersteven 2 des Schiffes die Leitflächen 3 angebracht, die, wie aus Abb. 2 ersichtlich, einen tropfenförmigen Querschnitt haben und deren seitliche Ausdehnung, wie Abb. 3 erkennen läßt, etwa dem größten Durchmesser der Schiffsschraubeentspricht. Die im Innern der Düse liegenden Leitflächen sind mit 4 bezeichnet und haben, wie aus Abb. 2 ersichtlich, einen tropfenförmigen Querschnitt.In the drawing, an embodiment according to the invention is shown in three figures, namely Fig. 1 shows a view from the rear, Fig. 2 shows a side view and Fig. 3 shows a view from below. In front of the nozzle i arranged according to the main patent, the guide surfaces 3 are attached to the stern post 2 of the ship, which, as can be seen from Fig. 2, have a teardrop-shaped cross-section and whose lateral extent, as Fig. 3 shows, corresponds approximately to the largest diameter of the propeller . The guide surfaces located inside the nozzle are denoted by 4 and, as can be seen from Fig. 2, have a teardrop-shaped cross section.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP2396A DE813955C (en) | 1948-10-18 | 1949-03-30 | With guide surfaces and a nozzle equipped propeller arrangement for ships |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE991492X | 1948-10-18 | ||
DEP2396A DE813955C (en) | 1948-10-18 | 1949-03-30 | With guide surfaces and a nozzle equipped propeller arrangement for ships |
Publications (1)
Publication Number | Publication Date |
---|---|
DE813955C true DE813955C (en) | 1951-09-17 |
Family
ID=25963006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP2396A Expired DE813955C (en) | 1948-10-18 | 1949-03-30 | With guide surfaces and a nozzle equipped propeller arrangement for ships |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE813955C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1011315B (en) * | 1954-06-12 | 1957-06-27 | Dr Georg Groetsch | Ship propeller with casing |
DE1196093B (en) * | 1962-11-19 | 1965-07-01 | Herbert Moennich | Double-walled propeller guide ring |
-
1949
- 1949-03-30 DE DEP2396A patent/DE813955C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1011315B (en) * | 1954-06-12 | 1957-06-27 | Dr Georg Groetsch | Ship propeller with casing |
DE1196093B (en) * | 1962-11-19 | 1965-07-01 | Herbert Moennich | Double-walled propeller guide ring |
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