DE17146C - Ship propellers with hollow wings, the cavity of which communicates with the surrounding water - Google Patents
Ship propellers with hollow wings, the cavity of which communicates with the surrounding waterInfo
- Publication number
- DE17146C DE17146C DENDAT17146D DE17146DA DE17146C DE 17146 C DE17146 C DE 17146C DE NDAT17146 D DENDAT17146 D DE NDAT17146D DE 17146D A DE17146D A DE 17146DA DE 17146 C DE17146 C DE 17146C
- Authority
- DE
- Germany
- Prior art keywords
- cavity
- communicates
- wings
- surrounding water
- openings
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 9
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
- B63H1/28—Other means for improving propeller efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Hydraulic Turbines (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die vorliegende Neuerung besteht darin, dafs die Flügel der Schraube nicht wie bisher massiv, sondern hohl angefertigt sind.The present innovation consists in the fact that the wings of the screw are not massive as before, but are made hollow.
Diese Höhlung eines jeden Flügels, welche einen Kanal d bildet, läuft in der Längenrichtung von der gemeinschaftlichen Nabe α nach dem äufseren Ende des Flügels in einer aus der Zeichnung, Fig. 1, ersichtlichen Form.This cavity of each wing, which forms a channel d , runs in the longitudinal direction from the common hub α to the outer end of the wing in a form shown in the drawing, FIG.
Dicht an der Wurzel der Flügel, und zwar auf der convexen oder dem Schiff zugewendeten Seite, und ebenfalls am äufseren Ende der Flügel auf der platten oder dem Schiff abgewendeten Seite, ist je eine Wand der Höhlung durchbrochen, so dafs an beiden Stellungen Oeffnungen entstehen, die dem Wasser den Durchlauf in die Oeffnungen b hinein und durch die Höhlungen d aus den Oeffnungen c hinaus gestatten.Close to the root of the wing, on the convex side or the side facing the ship, and also at the outer end of the wing on the flat side or the side facing away from the ship, a wall of the cavity is pierced, so that openings are created in both positions. which allow the water to flow into the openings b and through the cavities d out of the openings c .
Beim Arbeiten der Schiffsschraube im Wasser behufs Fortbewegung des Schiffes wird die infolge der raschen Umdrehungen der Schraube erzeugte Centrifugalkraft das Wasser in die inneren Oeffnungen b einsaugen, durch den Kanal d treiben und aus den äufseren Oeffnungen c wegschleudern. Es wird demnach in der Höhlung eines jeden Flügels ein Wasserstrom erzeugt, der ganz unabhängig von der schraubenden Wirkung des Propellers Wassermassen vom Schiff weg nach hinten ins freie Wasser wirft. Auch arbeitet dieser aus den Oeffnungen c tretende Strom dem durch die Reibung an den schraubenförmigen Flächen erzeugten, nachtheiligen Mitwirbeln des Wassers entgegen. Die Zeichnung stellt eine dreiflügelige Schraube in der Vorderansicht, Fig. 1, mit den einpunktirten Kanälen d in den Flügeln, sowie drei Querschnitte, Fig. 2, 3 und 4, eines Flügels dar, woraus die Erfindung zu ersehen ist.When the propeller is working in the water to move the ship, the centrifugal force generated by the rapid turns of the propeller will suck the water into the inner openings b , drive it through the channel d and hurl it out of the outer openings c . Accordingly, a water flow is generated in the cavity of each wing, which throws water masses away from the ship and back into the open water, regardless of the screwing action of the propeller. This current emerging from the openings c also works against the harmful swirling of the water produced by the friction on the helical surfaces. The drawing shows a three-wing screw in the front view, Fig. 1, with the single-punctured channels d in the wings, as well as three cross-sections, Fig. 2, 3 and 4, of a wing, from which the invention can be seen.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE17146C true DE17146C (en) |
Family
ID=294102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT17146D Active DE17146C (en) | Ship propellers with hollow wings, the cavity of which communicates with the surrounding water |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE17146C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2516890A1 (en) * | 1981-11-20 | 1983-05-27 | Noordvos Schroeven Bv | VESSEL PROPELLER HAVING TWO OR MORE PERFORATED HOLLOW BLADES |
-
0
- DE DENDAT17146D patent/DE17146C/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2516890A1 (en) * | 1981-11-20 | 1983-05-27 | Noordvos Schroeven Bv | VESSEL PROPELLER HAVING TWO OR MORE PERFORATED HOLLOW BLADES |
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