Patent · US Expired

Driving mechanism with two speed clutch

US5151068A · kind A · utility

17Cited by

10References

3Claims

0Family size

Assignee

Zahnradfabrik Friedrichshafen AG · DE

Inventors

Egon Mann · Friedrichshafen, DE
Helmut Eymuller · Friedrichshafen, DE
Siegfried Stutzle · Friedrichshafen, DE

Key dates

Filing date	Aug 31, 1990
Grant date	Sep 29, 1992
Priority date	—
Expiry date	Aug 31, 2010

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2063/3036
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A driving mechanism, specially for mobile excavators and similar construction machines, having a power-shiftable two-gear transmission (4) constructed as planetary gear and driven by a hydromotor, includes two speed levels alternatively engageable and disengageable via hydraulically shiftable friction clutches (9, 10). Both friction clutches (9, 10) are designed as spring accumulator clutches controllable by oil pressure. Both friction clutches (9, 10) are radially telescoped and are to be used both for shifting the gears and as parking brake and auxiliary service brake.

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