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:
May. 16, 2023
Filed:
Nov. 09, 2020
Caterpillar Inc., Peoria, IL (US);
Patrick W. Sullivan, Jr., Plainfield, IL (US);
Ryan R. Stoffel, Oswego, IL (US);
Beau D. Kuipers, Morris, IL (US);
Andrew N. Schifferer, Batavia, IL (US);
Royce E. Leaders, Oswego, IL (US);
Fuaad Sayeed, Dunlap, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A hydraulic system for a machine includes an implement pump, a valve, and an implement valve subsystem. The implement pump includes a load sensing control, and the valve controls the flow of hydraulic fluid to the implement pump. The implement valve subsystem includes one or more implement control subsystems to control movement of an implement. The valve is an electrohydraulic proportional relief valve and includes a solenoid configured to adjust the pressure of hydraulic fluid delivered to the implement pump proportionally to a current delivered through the solenoid.