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.

Date of Patent:
Jul. 28, 2020

Filed:

Apr. 25, 2017
Applicant:

Parker-hannifin Corporation, Cleveland, OH (US);

Inventors:

Randall D. Thompson, Lancaster, SC (US);

Ralf Gomm, Foster City, CA (US);

Vivek Bhaskar, Charlotte, NC (US);

Björn Eriksson, Johanneshov, SE;

Assignee:

Parker-Hannifin Corporation, Cleveland, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 11/17 (2006.01); E02F 9/22 (2006.01);
U.S. Cl.
CPC ...
F15B 11/17 (2013.01); E02F 9/2292 (2013.01); F15B 2211/20515 (2013.01); F15B 2211/20523 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/613 (2013.01); F15B 2211/7142 (2013.01); F15B 2211/781 (2013.01); F15B 2211/88 (2013.01);
Abstract

A hydraulic system includes one or more hydraulic subsystems that have a source of additional flow for supplying an auxiliary system. The hydraulic system may include one or more actuator systems, a boost system, and a further hydraulic system, such as a steering system. The source of additional flow for supplying the auxiliary system may include: sizing the boost system for providing both full boost function and auxiliary function, sizing the steering system for providing both full steering function and auxiliary function, utilizing available flow from an unused actuator function, and/or utilizing a selector manifold for actively selecting the source of auxiliary flow based on the flow and pressure demands of the respective hydraulic systems. Such a hydraulic system enables flow to be available to an auxiliary function regardless of the flow requirements for the actuator functions and/or other vehicle functions, while also minimizing interactions and flow disruptions to the various hydraulic subsystems.


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