Patent · US Active

Variable-pitch propeller or repeller

US9476311B2 · kind B2 · utility

5Cited by

10References

16Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Ernst-Christoph Krackhardt · Schenefeld, DE
Christian Müller · Berndorf, AT
Dierk Schröder · Ahlhorn, DE

Key dates

Filing date	May 11, 2011
Grant date	Oct 25, 2016
Priority date	—
Expiry date	Nov 23, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/72
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In the case of a variable-pitch propeller or repeller according to the invention, the pitch-adjusting device is arranged in the hub and formed in such a way that it allows only a numerically limited number of different blade pitches, preferably just two blade pitches, for which purpose the pitch-adjusting device comprises an electrical drive device, for moving the blades from a first blade pitch to a second of the numerically limited number of blade pitches, and an electrically actuable locking device, for locking the blades in the numerically limited number of different blade pitches.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.