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. 06, 2018

Filed:

Dec. 07, 2015
Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventors:

Jeremy Todd Peterson, Washington, IL (US);

Jeffrey Lee Kuehn, Germantown Hills, IL (US);

Bryan E. Nelson, Chillicothe, IL (US);

Paul Anthony Dvorak, Sanford, NC (US);

Assignee:

Caterpillar Inc., Deerfield, IL (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 11/17 (2006.01); E02F 3/34 (2006.01); E02F 9/22 (2006.01); F15B 1/02 (2006.01); F16H 61/4078 (2010.01);
U.S. Cl.
CPC ...
F15B 11/17 (2013.01); E02F 3/34 (2013.01); E02F 9/2217 (2013.01); E02F 9/2228 (2013.01); E02F 9/2242 (2013.01); E02F 9/2253 (2013.01); E02F 9/2289 (2013.01); E02F 9/2292 (2013.01); E02F 9/2296 (2013.01); F15B 1/024 (2013.01); F16H 61/4078 (2013.01); F15B 2211/20523 (2013.01); F15B 2211/20546 (2013.01); F15B 2211/20569 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/212 (2013.01); F15B 2211/27 (2013.01); F15B 2211/3053 (2013.01); F15B 2211/30525 (2013.01); F15B 2211/3111 (2013.01); F15B 2211/3144 (2013.01); F15B 2211/31523 (2013.01); F15B 2211/351 (2013.01); F15B 2211/455 (2013.01); F15B 2211/613 (2013.01); F15B 2211/6346 (2013.01); F15B 2211/665 (2013.01); F15B 2211/7135 (2013.01); F15B 2211/851 (2013.01); F15B 2211/88 (2013.01);
Abstract

A hydraulic system is disclosed for use with a machine. The hydraulic system may have a closed-loop, meterless hydraulic circuit with a first pump fluidly connected to a first actuator. The hydraulic system may also have a closed-loop, metered hydraulic circuit with a second pump fluidly connected to a second actuator. The hydraulic system may further have a combiner valve configured to selectively direct fluid from the closed-loop metered hydraulic circuit to the closed-loop meterless hydraulic circuit.


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