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:
Mar. 10, 2015
Filed:
Oct. 21, 2011
Jeffrey L. Kuehn, Metamora, IL (US);
Brad A. Edler, Waterloo, IL (US);
Jeremy T. Peterson, Washington, IL (US);
Michael T. Verkuilen, Metamora, IL (US);
Jeffrey L. Kuehn, Metamora, IL (US);
Brad A. Edler, Waterloo, IL (US);
Jeremy T. Peterson, Washington, IL (US);
Michael T. Verkuilen, Metamora, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A hydraulic system is disclosed. The hydraulic system may have a unidirectional variable displacement first pump, a first actuator connected to the first pump via a closed-loop first circuit, and a first switching valve disposed between the first actuator and the first pump. The first switching valve may be configured to control a fluid flow direction through the first actuator. The hydraulic system may also have a second actuator connected to the first pump in parallel with the first actuator via the first circuit, and a second switching valve disposed between the second actuator and the first pump. The second switching valve may be configured to control a fluid flow direction through the second actuator. The hydraulic system may further have a modulation valve associated with the first circuit and configured to selectively modulate a pressure of the first circuit during actuation of the first or second switching valves.