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.
Patent No.:
Date of Patent:
Nov. 18, 2014
Filed:
Jun. 29, 2011
Brad Edler, Metamora, IL (US);
Viral S. Mehta, Peoria, IL (US);
Lawrence Tognetti, Peoria, IL (US);
Christopher Williamson, Greendale, WI (US);
Brad Edler, Metamora, IL (US);
Viral S. Mehta, Peoria, IL (US);
Lawrence Tognetti, Peoria, IL (US);
Christopher Williamson, Greendale, WI (US);
Caterpillar Inc., Peoria, IL (US);
Purdue University, West Lafayette, IN (US);
Abstract
A method for overpressure control in a hydraulic system having multiple hydraulic pumps, with each hydraulic pump being connected by a respective hydraulic circuit for actuating a single respective hydraulic actuator, includes actuating a first variable displacement hydraulic pump, the first hydraulic pump being fluidly linked by a first hydraulic circuit to a first hydraulic actuator for powering the first hydraulic actuator. Upon detecting a pressure that exceeds a predetermined threshold pressure, the flow rate of the first hydraulic pump is electronically modified to a second flow rate lower than the first flow rate whereby the pressure in the first hydraulic circuit is reduced to a pressure that is below the predetermined threshold pressure.