The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 14, 2025

Filed:

Jun. 25, 2020
Applicant:

Liebherr-werk Bischofshofen Gmbh, Bischofshofen, AT;

Inventors:

Hans Knapp, Bischofshofen, AT;

Josef Stock, Bischofshofen, AT;

Rupert Gappmaier, Altenmarkt, AT;

Christoph Kiegerl, Werfenweng, AT;

Reinhard Windhofer, Muhlbach am Hochkonig, AT;

Florian Altenberger, Taxenbach, AT;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 9/22 (2006.01); F15B 11/04 (2006.01); E02F 3/42 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2203 (2013.01); E02F 9/2271 (2013.01); F15B 11/04 (2013.01); E02F 3/422 (2013.01); F15B 2211/426 (2013.01); F15B 2211/6313 (2013.01);
Abstract

The present invention relates to a mobile work machine, in particular to a wheeled loader, having a hydraulic circuit, having a pump for conveying a hydraulic medium through the hydraulic circuit, and having at least one control block having an inflow control edge and an outflow control edge for controlling the flow of the hydraulic medium, wherein the work machine has a working tool and a cylinder for actuating the working tool and wherein the cylinder has an outflow and in inflow for the hydraulic medium, and wherein the outflow is in fluid communication with the outflow control edge and the inflow is in fluid communication with the inflow control edge, and wherein the inflow control edge does not have any or has fewer fine control notches than the outflow control edge and thus works in a largely unrestricted manner, while the outflow control edge is equipped with one or more fine control notches so that with a pulling load at the working tool, the outflow control edge restricts the outflow amount through the outflow of the cylinder.


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