Patent · US Active

Roller casting method and system for producing a spiral structure

US11845124B2 · kind B2 · utility

0Cited by

11References

17Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Franz-Josef Wöstmann · Bremen, DE
Michael Heuser · Lake Forest, US
Matthias Busse · Bremen, DE

Key dates

Filing date	Sep 19, 2019
Grant date	Dec 19, 2023
Priority date	—
Expiry date	Sep 19, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH01F41/077
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A roller casting method produces a spiral structure, in particular a spiral structure for use in electric machines. Molten metal is supplied between a first roller and a second roller miming opposite thereto, wherein the first roller has first teeth, and the second roller has second teeth, said first and/or second teeth having tooth flanks with cavities for receiving the supplied molten metal. The teeth are designed and aligned such that the cavity of at least one tooth is at least temporarily delimited by the surface of a tooth of the other roller when the rollers are rotating such that the supplied molten metal is molded between the teeth while cooling and is molded into a section of the spiral structure.

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