Patent · US Active

Rotor shaft for an electric machine and electric machine

US11569710B2 · kind B2 · utility

0Cited by

5References

16Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Endre Barti · Munich, DE
Julian Blum · Bielefeld, DE
Markus Lang · Munich, DE
Daniel Loos · Munich, DE
Holger Ulbrich · Munich, DE

Key dates

Filing date	Aug 13, 2019
Grant date	Jan 31, 2023
Priority date	—
Expiry date	Jun 1, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2209/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A rotor shaft for an electric machine includes a rotor shaft main body and a rotor shaft core which is arranged therein and which is connected to the rotor shaft main body. The rotor shaft comprises a substantially axially running cooling cavity configured to conduct a cooling fluid, and the rotor shaft core is composed of a different material than the rotor shaft main body.

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