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:
Dec. 11, 2018
Filed:
Mar. 29, 2016
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Stephan Neuschaefer-Rube, Herzogenaurach, DE;
Jan Matysik, Nuremberg, DE;
Darius Dlugai, Schwebheim, DE;
Christian Schmitt, Niederwerrn, DE;
Markus Neubauer, Memmelsdorf, DE;
Tomas Smetana, Herzogenaurach, DE;
SCHAEFFLER TECHNOLOGIES AG & CO. KG, Herzogenaurach, DE;
Abstract
A hollow machine element for transmitting a force and/or a torque is provided. The hollow machine element forms a component of an assembly for measuring the acting force and/or torque by using inverse magnetostrictive effect. The hollow machine element extends along an axis and has a cavity that extends along the axis. The machine element includes at least one magnetization region for magnetization, and which includes a magnetostrictive material. A magnetic field measurable via the assembly can be caused by the magnetization and by the force and/or by the torque. The magnetization region is directed toward the cavity and has an axially central segment, in which the magnetization region is arranged at a radial distance from a ferromagnetic region of the machine element to define a gap therebetween. The gap may be empty or filled with insulation, to provide magnetic insulation.