Patent · US Active

Electrical drive unit for a motor vehicle

US8944195B2 · kind B2 · utility

1Cited by

14References

10Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Raphael Fischer · Schweinfurt, DE
Michael Bogner · Eckental, DE

Key dates

Filing date	Dec 1, 2010
Grant date	Feb 3, 2015
Priority date	—
Expiry date	Jan 8, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH02K5/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electrical drive unit for a motor vehicle, with the drive unit including a wheel hub drive that drives a vehicle wheel. The wheel hub drive has a sealing element which is affected by friction and by means of which the interior of the wheel hub drive is sealed off from the surroundings in an airtight manner. A ventilation device is provided by which a pressure difference between the prevailing air pressure in the interior of the wheel hub drive and the prevailing air pressure of the surrounding air can be compensated by displacing volumes of air.

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