Patent · US Active

Method of operating an energy recovery cylinder

US8938956B2 · kind B2 · utility

3Cited by

6References

17Claims

0Family size

Assignee

LIEBHERR-HYDRAULIKBAGGER GMBH · DE

Inventors

Dirk Asam · Ulm, DE
Jochen Fehse · Lindow (Mark), DE

Key dates

Filing date	Nov 17, 2011
Grant date	Jan 27, 2015
Priority date	—
Expiry date	Aug 18, 2032

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F9/52
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The present invention relates to an implement, in particular an excavator or machine for material handling, with an element movable via at least one working drive, wherein at least one energy recovery cylinder is provided for energy recovery from the movement of the movable element, which includes a chamber filled with gas, wherein the actuation of the implement is effected in dependence on the directly or indirectly determined temperature of the gas in the chamber filled with gas.

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