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. 05, 2022

Filed:

Jul. 28, 2021
Applicant:

Deere & Company, Moline, IL (US);

Inventors:

Aaron M. Quinn, Cedar Falls, IA (US);

Dwayne A. Nystrom, Waterloo, IA (US);

Nicholas R. Hensch, North Liberty, IA (US);

Assignee:

DEERE & COMPANY, Moline, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 11/17 (2006.01); E02F 9/22 (2006.01); F15B 11/16 (2006.01); F15B 21/08 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2296 (2013.01); F15B 11/165 (2013.01); F15B 11/17 (2013.01); F15B 21/08 (2013.01); F15B 2211/20553 (2013.01); F15B 2211/20584 (2013.01); F15B 2211/212 (2013.01); F15B 2211/30525 (2013.01); F15B 2211/327 (2013.01); F15B 2211/528 (2013.01); F15B 2211/6309 (2013.01); F15B 2211/6333 (2013.01);
Abstract

A hydraulic system for a work vehicle includes a first pump with a first swashplate providing a first flow in a first circuit and a second pump with a second swashplate providing a second flow in a second circuit. A supplemental pump with a supplemental swashplate provides a supplemental flow to a supplemental circuit. A first valve selectively enables flow from the supplemental circuit to the first circuit. A second valve selectively enables flow from the supplemental circuit to the second circuit. A controller determines to operate the supplemental pump in one of a standby condition and a use condition based in part on a first angle of the first swashplate and a second angle of the second swashplate.


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