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. 12, 2019
Filed:
Sep. 09, 2016
Danfoss Power Solutions G.m.b.h & Co. Ohg, Neumünster, DE;
Reinhardt Thoms, Holzbunge, DE;
Martin Wuestefeld, Neumünster, DE;
Danfoss Power Solutions GmbH & Co. OHG, Neumunster, DE;
Abstract
The invention relates to a displacement unit () of a hydraulic machine, for which the hysteresis is reduced. For this purpose, in the control spool () and/or at the control spool () a mass body () and a spring () are arranged, which are excited to resonance vibrations. The vibrations are self-excited and sustained by a partial flow rate of the hydraulic fluid which is modulated periodically. The high frequent vibrations are transmitted over the spring () onto the associated control spool (), thereby reducing the friction and hence the hysteresis.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile