Patent · US Active

Oil distribution element

US10461604B2 · kind B2 · utility

2Cited by

1References

15Claims

0Family size

Assignee

THYSSENKRUPP PRESTA TECCENTER AG · LI

Inventors

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

Key dates

Filing date	May 18, 2015
Grant date	Oct 29, 2019
Priority date	—
Expiry date	May 9, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH02K9/193
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A hollow rotor shaft for a rotor of an electrical machine may include a cylinder barrel closed off by face flanges on both sides. The cylinder barrel may enclose a shaft cavity. A shaft journal may be configured on each face flanges. An inlet may be disposed in one of the shaft journals by way of which a cooling fluid may pass into the shaft cavity and onto an inner surface of the cylinder barrel. A distribution element may be disposed in the shaft cavity. The distribution element may receive the cooling fluid that enters through the inlet, conduct the cooling fluid in a direction of the inner surface of the cylinder barrel by way of a rotation-symmetrical drainage surface, and give off the cooling fluid to the inner surface by way of a mouth region.

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