Patent · US Active

Variable ratio gear

US7993240B2 · kind B2 · utility

3Cited by

0References

24Claims

0Family size

Assignee

AMSC Windtec GmbH · AT

Inventors

Peter Weichbold · Klagenfurt, AT
Robert Tratnig · Ferlach, AT

Key dates

Filing date	Jan 29, 2009
Grant date	Aug 9, 2011
Priority date	—
Expiry date	Jan 29, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19637
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A variable ratio gear system is configured for use with a constant speed generator being driven by a variable speed rotor. The variable ratio system includes three shafts: The first shaft is mechanically coupled to the rotor; the second shaft is mechanically coupled to a variable gear system; and the third shaft is mechanically coupled to the generator and the variable gear system. A control system is configured to adjust the output of the variable gear system to control the rotational speed of the generator. A brake is configured to control the rotation of the second shaft.

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