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:
Nov. 03, 2020

Filed:

Aug. 24, 2018
Applicant:

Cnh Industrial America Llc, New Holland, PA (US);

Inventors:

Duqiang Wu, Bolingbrook, IL (US);

John C. Endsley, Washington, IL (US);

Michael Glennon, Normal, IL (US);

Kevin D. McKee, Naperville, IL (US);

Assignee:

CNH Industrial America LLC, New Holland, PA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A01B 63/10 (2006.01); A01B 63/32 (2006.01); F15B 13/02 (2006.01); F15B 13/04 (2006.01); A01B 49/02 (2006.01); F15B 13/042 (2006.01);
U.S. Cl.
CPC ...
A01B 63/32 (2013.01); A01B 49/027 (2013.01); A01B 63/10 (2013.01); F15B 13/026 (2013.01); F15B 13/028 (2013.01); F15B 13/042 (2013.01); F15B 13/0417 (2013.01); F15B 2211/50554 (2013.01);
Abstract

A hydraulic system includes a supply line, at least one implement-based control valve, an implement-based pressure regulating valve, and a load sensing circuit. The implement-based control valve(s) is fluidly coupled to the supply line and configured to regulate a flow of the pressurized hydraulic fluid supplied through at least one downstream actuator line to at least one hydraulic actuator of the implement. The implement-based pressure regulating valve is fluidly coupled to the supply line upstream of the control valve(s) and configured to regulate a fluid pressure to be equal to or greater than a minimum fluid pressure. The load sensing circuit is fluidly coupled to the pressure regulating valve and provides a line or load pressure to the pressure regulating valve. The pressure regulating valve is configured to regulate the supply of the pressurized hydraulic fluid based on the line pressure.


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