Patent · US Active

Liquid-cooled rotor for an electromechanical energy converter

US12206293B2 · kind B2 · utility

0Cited by

2References

10Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Benjamin KRANK · Munich, DE
Florian Puschmann · Tauberfeld, DE
Simon STRASINSKY · Neufahrn bei Freising, DE
Bernhard Wolf · Poing, DE

Key dates

Filing date	Feb 24, 2021
Grant date	Jan 21, 2025
Priority date	—
Expiry date	Oct 5, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH02K9/197
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A liquid-cooled rotor for an electromechanical energy converter has a rotor shaft designed, at least in portions, as a hollow shaft and having a first, open axial end, a liquid-guiding device extending through the first end into the rotor shaft, wherein an annular liquid space is between the liquid-guiding device and the rotor shaft in the radial direction, and the liquid-guiding device has an interior space for guiding liquid and a liquid inlet opening into the interior space and arranged at a first axial end of the liquid-guiding device, the liquid-guiding device, at a second axial end, is received in the rotor shaft and guiding relative to the rotor shaft, and has a liquid outlet opening fluidically connecting the interior space to the annular liquid space, and the liquid outlet opening is between the first and second ends of the liquid-guiding device in the axial direction.

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