Patent · US Expired

Individual-wheel drive for vehicles

US4402374A · kind A · utility

15Cited by

6References

8Claims

0Family size

Assignees

Zahnradfabrik Friedrichshafen AG · DE
Siemens Aktiengesellschaft · DE

Inventors

Walter Knur · Uttenreuth, DE
Siegfried Winkelmann · Tettnang, DE

Key dates

Filing date	Sep 21, 1981
Grant date	Sep 6, 1983
Priority date	—
Expiry date	Sep 21, 2001

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60Y2200/84
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

An individual-wheel drive apparatus including an electric motor is disclosed. A two-stage planetary gear arrangement couples the motor to the wheel. The hollow gear of the planetary gear arrangement is fastened to the end bell of the motor. The outside surface of the hollow gear serves as the inner bearing race for the bearing of the wheel hub.

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