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:
Sep. 08, 2015

Filed:

Aug. 02, 2012
Applicants:

Charles D. Throckmorton, Ames, IA (US);

Stephen D. Cromer, Piedmont, SC (US);

Glenn M. Mahony, Greenville, SC (US);

Michael J. Stoltenow, Greenfield, MN (US);

Chad J. Daniel, Ankeny, IA (US);

Inventors:

Charles D. Throckmorton, Ames, IA (US);

Stephen D. Cromer, Piedmont, SC (US);

Glenn M. Mahony, Greenville, SC (US);

Michael J. Stoltenow, Greenfield, MN (US);

Chad J. Daniel, Ankeny, IA (US);

Assignee:

SAUER-DANFOSS INC., Ames, IA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 11/16 (2006.01); E02F 9/22 (2006.01);
U.S. Cl.
CPC ...
F15B 11/162 (2013.01); E02F 9/226 (2013.01);
Abstract

A hydraulic pressure control system having a variable displacement pump fluidly connected to a hydraulic motor. The pump provides flow to a first circuit upon demand. Remaining flow is provided to a second circuit. The second circuit includes a pilot controlled pressure reducing valve that adjusts the pumps outlet pressure based upon a sensed loads taken from a conduit between the pressure control valve and an active flow regulator valve.


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