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. 10, 2017
Filed:
Feb. 04, 2016
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Zf Padova S.r.l., Caselle di Selvazzano, IT;
Fernando Gallato, Padua, IT;
ZF Friedrichshafen AG, Friedrichshafen, DE;
ZF Padova S.R.L., Caselle di Delvazzarno (PD), IT;
Abstract
A hydraulic valve assembly () with a housing () and with a spool () which is rotatable in the housing (). The spool comprising a pressure supply orifice () and at least one clutch actuating orifice () which is connectable to a clutch actuating cylinder (). The spool () comprises a pressure release orifice () which is arranged at the spool () so that the pressure release orifice () is closed by rotational movement of the spool () while the clutch actuating orifice () is opened by such rotational movement. The invention further relates to a clutch actuating device with such a hydraulic valve assembly () and a corresponding marine propulsion system.