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:
Oct. 17, 2006
Filed:
Apr. 14, 2005
Reinhardt Thoms, Neumunster, DE;
Carsten Fiebing, Jevenstedt, DE;
Bernd Hames, Henstedt-Ulsburg, DE;
Martin Wüstefeld, Neumunster, DE;
Reinhardt Thoms, Neumunster, DE;
Carsten Fiebing, Jevenstedt, DE;
Bernd Hames, Henstedt-Ulsburg, DE;
Martin Wüstefeld, Neumunster, DE;
Sauer-Danfoss Inc., Ames, IA (US);
Abstract
An axial piston machine having a swash plate or oblique axis which can be adjusted by means of servopistons and has a valve segment and an adjustment unit for the electrically proportional adjustment of the volumetric displacement, the adjustment unit comprising proportional magnets which can be activated electrically, and a control piston for controlling the oil pressure which moves the servopistons, the proportional magnets acting on this control piston along a common tappet axis. A feedback device for feeding back the current swash plate or oblique axis valve segment position is provided. The feedback device comprises spring levers and a pointer which can be pivoted about an axis, the pointer which is embodied as a two-armed lever engaging in the control piston on one side of the pivot axis, and between the spring levers on the other side.