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. 26, 2013
Filed:
Oct. 01, 2009
Bruno Mueller, Sasbach, DE;
Thorsten Krause, Buehl, DE;
Christian Huegel, Rheinau, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
A power transmission device for power transmission between an engine and a power output, comprising at least an input and an output, a hydrodynamic component with an impeller and a turbine wheel and a device for partially bypassing at least the hydrodynamic component with a servo unit featuring a piston element that can be pressurized with hydraulic medium and able to influence the circulation rate difference of flow media on both sides of the piston element, wherein the influence comprises rotary synchronism with the piston element of the servo unit, a further rotatable piston element disposed in axial direction with a spacing from the piston element of the servo unit.