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. 03, 2017
Filed:
Feb. 18, 2014
Parker-hannifin Corporation, Cleveland, OH (US);
Jarmo Harsia, Woodstock, IL (US);
Patrick Stegemann, Arlington Heights, IL (US);
Parker-Hannifin Corporation, Cleveland, OH (US);
Abstract
A load sense open center hydraulic system provides efficiency and operator feedback and includes one or more constant flow-open center valves (); respective one or more parallel power cores () operatively coupled to the one or more constant flow-open center valves; a variable capacity pump () directly fluidly connected to the one or more parallel power cores; and a pressure compensated flow control fluidly connected between the variable capacity pump and the one or more constant flow-open center valves. The one or more constant flow-open center valves are not fluidly coupled to a fixed capacity pump.