Patent · US Expired

Apparatus and method for driving a hydraulic system of a construction machine, in particular a hydraulic excavator

US6314726A · kind A · utility

1Cited by

4References

5Claims

0Family size

Assignee

KOMATSU MINING GERMANY GMBH · DE

Inventors

Joachim Meyer · Frankenthal (Pfalz), DE
Gerd Ehrich · Monheim, DE

Key dates

Filing date	Mar 6, 2000
Grant date	Nov 13, 2001
Priority date	—
Expiry date	Mar 6, 2020

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE02F9/2296
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A method and an apparatus for driving a hydraulic system of a construction machine, in particular a hydraulic excavator, having a plurality of control blocks which are fed via at least one pump each and each drive a plurality of hydraulically operated actuators of the construction machine. At least two control blocks are designed to drive the same actuator. The delivery capacity of the pump of the second control block can be connected up to the actuator via a delay element.

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