Patent · US Expired

Hydraulic wheel drive with clutch

US4213514A · kind A · utility

33Cited by

8References

9Claims

0Family size

Assignee

Zahnradfabrik Friedrichshafen AG · DE

Inventors

Friedrich Ehrlinger
Egon Mann · Friedrichshafen, DE
Manfred Fischer · Leichlingen, DE
Rudolf Jocham · Tettnang, DE

Key dates

Filing date	Oct 3, 1978
Grant date	Jul 22, 1980
Priority date	—
Expiry date	Oct 3, 1998

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60K17/14
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A wheel drive for a piece of construction equipment or the like has a hydraulic motor mounted in a wheel support on which is rotatable the wheel-carrying hub. The output shaft of the motor is connected to one member of a clutch whose other member is connected to a two-stage planetary-gear transmission whose output gear is a ring gear integrally formed in the wheel hub. The clutch is pneumatically actuatable through a passage extending axially through the motor shaft.

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