DE866161C - propeller - Google Patents

propeller

Info

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
Application number
DEP6077A
Other languages
German (de)
Inventor
Luebbe Schnitger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DEP6077A priority Critical patent/DE866161C/en
Application granted granted Critical
Publication of DE866161C publication Critical patent/DE866161C/en
Expired legal-status Critical Current

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)

PATENTANSPRÜCHE: i. Propeller, dessen Flügel von einem tragflügelartigen Düsenring durchdrungen oder unterbrochen ist, nach Patent 86o 154, gekennzeichnet durch einen Blechring, der innerhalb des Flügeldruckraums derart angeordnet ist, daß er mit der stromlinienförmigen Nabe eine Ringdüse bildet. PATENT CLAIMS: i. Propeller, the wing of which is of an airfoil-like one Nozzle ring penetrated or interrupted, according to patent 86o 154, characterized by a sheet metal ring, which is arranged within the wing pressure chamber in such a way that that it forms an annular nozzle with the streamlined hub. 2. Propeller nach Anspruch i, dadurch gekennzeichnet, daß der Ring in einer Entfernung von 0,4 bis o,6 des Flügelaußenradius mit einer Neigung von 4 bis 8° angeordnet ist.2. Propeller after Claim i, characterized in that the ring at a distance of 0.4 to o, 6 of the wing outer radius is arranged with an inclination of 4 to 8 °.
DEP6077A 1948-10-02 1948-10-02 propeller Expired DE866161C (en)

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)

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