DE866161C - propeller - Google Patents
propellerInfo
- Publication number
- DE866161C DE866161C DEP6077A DEP0006077A DE866161C DE 866161 C DE866161 C DE 866161C DE P6077 A DEP6077 A DE P6077A DE P0006077 A DEP0006077 A DE P0006077A DE 866161 C DE866161 C DE 866161C
- Authority
- DE
- Germany
- Prior art keywords
- propeller
- ring
- wing
- sheet metal
- nozzle
- 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)
- Turbine Rotor Nozzle Sealing (AREA)
Description
Die Erfindung bezieht sich auf Propeller; deren Flügel von einem tragflügelartigen Düsenring durchdrungen sind, nach Patent 86o 154. Sie bezweckt eine Vereinfachung in der Herstellung derartiger Propeller, insbesondere für Schiffe kleinerer Leistungen und Drehzahlen.The invention relates to propellers; their wings from an airfoil-like one Nozzle ring are penetrated, according to patent 86o 154. It aims to simplify in the manufacture of such propellers, especially for ships with smaller capacities and speeds.
,Gemäß der Erfindung wird innerhalb des Flügel= druckraums ein Blechring angeordnet, der mit der stromlinienförmigen Nabe eine Ringdüse bildet. Ein derartiger Blechring läßt sich mit einfachen Mitteln herstellen und anbringen und vereinfacht die Herstellung eines Düsenpropellers. Der Blechring ist tragflügelartig gegen die Strömungsrichtung angestellt, und zwar zweckmäßig unter einem Winkel von q. bis 8°. Seine Entfernung von der Drehachse des Propellers beträgt etwa 0,4 bis o,6 des Propelleraußenradius. - - 7 Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung. ' " Innerhalb des Propellers liegt der Blechring b, und zwar innerhalb des Druckflächenbereichs der Propellerflügel a. Die Entfernung c des Ringes b von der Propellermitte ist 0,4 bis o,6 des Außenradius-d der Flügel a. Zur Austrittseite neigt sich der Blechring um den Winkel a.According to the invention, a sheet metal ring is arranged within the wing = pressure chamber, which forms an annular nozzle with the streamlined hub. Such a sheet metal ring can be produced and attached with simple means and simplifies the production of a nozzle propeller. The sheet metal ring is positioned like an airfoil against the direction of flow, expediently at an angle of q. up to 8 °. Its distance from the axis of rotation of the propeller is about 0.4 to 0.6 of the outer propeller radius. - - 7 The drawing shows an embodiment of the invention. The sheet metal ring b lies within the propeller, namely within the pressure surface area of the propeller blades a. The distance c of the ring b from the propeller center is 0.4 to 0.6 of the outer radius d of the blades a. The sheet metal ring inclines towards the outlet side around the angle a.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP6077A DE866161C (en) | 1948-10-02 | 1948-10-02 | propeller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP6077A DE866161C (en) | 1948-10-02 | 1948-10-02 | propeller |
Publications (1)
Publication Number | Publication Date |
---|---|
DE866161C true DE866161C (en) | 1953-02-09 |
Family
ID=7360406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP6077A Expired DE866161C (en) | 1948-10-02 | 1948-10-02 | propeller |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE866161C (en) |
-
1948
- 1948-10-02 DE DEP6077A patent/DE866161C/en not_active Expired
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