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. 17, 2023
Filed:
Jun. 09, 2020
Applicant:
Parker-hannifin Corporation, Cleveland, OH (US);
Inventors:
Assignee:
Parker-Hannifin Corporation, Cleveland, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
E02F 9/22 (2006.01); F15B 11/17 (2006.01); F15B 13/08 (2006.01); F15B 15/18 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2292 (2013.01); E02F 9/2242 (2013.01); E02F 9/2289 (2013.01); F15B 11/17 (2013.01); F15B 13/0885 (2013.01); F15B 15/18 (2013.01); F15B 2211/20515 (2013.01); F15B 2211/20576 (2013.01);
Abstract
An example hydraulic system includes a hydraulic actuator; a pump driven by an electric motor and having an inlet port and an outlet port; a boost flow line configured to provide boost fluid flow or receive excess fluid flow; a reservoir fluid line fluidly coupled to a reservoir; and a valve assembly configured to operate in a plurality of states to allow the pump to operate in a closed-circuit configuration in which fluid discharged from the hydraulic actuator is provided to the inlet port of the pump or an open-circuit configuration in which fluid discharged from the hydraulic actuator is provided to the reservoir.