Patent · US Active

Assembled hollow rotor shaft having a cooling-medium distribution element

US10790725B2 · kind B2 · utility

0Cited by

6References

12Claims

0Family size

Assignees

THYSSENKRUPP PRESTA TECCENTER AG · LI
thyssenkrupp AG · DE

Inventors

Daniel Paul · Thalheim/Erzgebirge, DE
Christian Kötschau · Chemnitz, DE
Sebastian Wappler · Chemnitz, DE

Key dates

Filing date	Nov 17, 2016
Grant date	Sep 29, 2020
Priority date	—
Expiry date	Feb 4, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH02K19/02
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An assembled hollow rotor shaft for a rotor, which rotates about a longitudinal axis, of an electric machine, may include a cylinder jacket that surrounds a shaft cavity, and end flanges disposed on both sides on the cylinder jacket. A shaft journal is disposed on each of the end flanges. An inlet is provided in the shaft journal of one of the end flanges via which a cooling medium can be conducted into the shaft cavity and onto an inner surface of the cylinder jacket. A cooling-medium distribution element within the shaft cavity may be formed symmetrically perpendicularly to the longitudinal axis, may receive the cooling medium, which enters via the inlet, via a receiving region, may guide the cooling medium via a removal region in a direction of the inner surface of the cylinder jacket, and may discharge the cooling medium onto the inner surface via a discharging region.

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