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.
Patent No.:
Date of Patent:
Feb. 17, 2015
Filed:
Oct. 16, 2012
Wirtgen Gmbh, Windhagen, DE;
Winfried von Schönebeck, Kalenborn, DE;
Sascha Schwippert, Königswinter, DE;
Cyrus Barimani, Königswinter, DE;
Günter Hähn, Königswinter, DE;
Wirtgen GmbH, , DE;
Abstract
The invention relates to a self-propelling construction machine which has a chassiswhich has wheels or crawler track unitsA,B. The construction machine according to the invention is distinguished by the fact that the gear mechanism systemfor transmitting the drive power from the drive unitwhich comprises at least one internal combustion engineA, to the working unitwhich comprises at least one working assemblyA, does not have a conventional clutch with which the working unit can be activated but instead has a hydrodynamic gear mechanismwhich has a drive shaftA and an output shaftB. The construction machine has a control devicewhich is embodied in such a way that the drive power which is transmitted from the drive unitto the wheels of the crawler track unitsA,B via the first power transmission line I is controlled in such a way that the rotational speed difference Δ=n−nbetween the drive shaft and the output shaft of the hydrodynamic transmission of the second power transmission line II corresponds to a predefined value.