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:
Mar. 01, 2016
Filed:
Feb. 22, 2012
Andreas Schmidt, Schwarzbach, DE;
Franz Pawellek, Lautertal, DE;
Andreas Schmidt, Schwarzbach, DE;
Franz Pawellek, Lautertal, DE;
NIDEC GPM GmbH, Auengrund OT Merbelsrod, DE;
Abstract
The invention relates to a device and method for the defined longitudinal shifting of an adjusting device which rotates along in a drive shaft, along the center axis of the drive shaft. The solution according to the invention is characterized in that a working chamber () is arranged at the opposite end of the drive shaft (), into which working chamber a passage hole () arranged in the drive shaft () opens, wherein a working piston () that operatively connects to the working chamber () is arranged in such a way that, in the event of a pressure build-up in the working chamber (), the adjusting device () is variably moved against the spring force of a restoring spring () by means of a radial piston pump according to the invention that is arranged on the drive shaft ().