Pivotable propeller nozzle for a watercraft
Assigneebecker marine systems GmbH & Co. KG
InventorDirk Lehmann
Life of this patent
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Abstract
A propeller nozzle for watercraft includes a stationary propeller and a nozzle ring that shrouds the propeller and can be pivoted by means of a nozzle shaft. The nozzle shaft is provided in the form of a hollow body in order to achieve a constructively simple and simultaneously stable connection between the nozzle shaft and the nozzle ring.
Claims17
A nozzle shaft for pivotable Kort propeller nozzles with stationary propeller for watercraft comprising:
- a nozzle shaft having a hollow body of a constant diameter over its entire length in an axial direction;
- wherein a blade-type pivot drive for the nozzle shaft is at least partially arranged inside of the nozzle shaft and in an end region of the nozzle shaft;
- and
- wherein outside dimensions of the pivot drive correspond essentially to inside dimensions of the nozzle shaft.
A propeller nozzle for watercraft with a stationary propeller and a nozzle ring that shrouds the propeller, comprising:
- a nozzle shaft for pivoting the nozzle ring, wherein the nozzle shaft is realized in the form of a cylindrical pipe;
- wherein an end region of the nozzle shaft that faces the nozzle ring is rigidly connected to the nozzle ring by means of welding;
- wherein an end region of the nozzle shaft that faces the nozzle ring is inserted into a wall of the nozzle ring;
- and
- wherein the nozzle shaft is at least sectionally arranged and supported in a trunk pipe,
- wherein the region of the nozzle shaft that faces the nozzle ring protrudes over the trunk pipe.
A watercraft, characterized in that it comprises a propeller nozzle for watercraft, with a stationary propeller and a nozzle ring that shrouds the propeller, comprising:
- a nozzle shaft for pivoting the nozzle ring, wherein the nozzle shaft is realized in the form of a cylindrical pipe;
- wherein an end region of the nozzle shaft that faces the nozzle ring is rigidly connected to the nozzle ring by means of welding;
- wherein an end region of the nozzle shaft that faces the nozzle ring is inserted into a wall of the nozzle ring;
- and
- wherein the nozzle shaft is at least sectionally arranged and supported in a trunk pipe,
- wherein the region of the nozzle shaft that faces the nozzle ring protrudes over the trunk pipe.
Dependencies are inferred from the claim text.