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:
Jul. 15, 2014
Filed:
Jun. 28, 2011
Jiao Zhang, Naperville, IL (US);
Dayao Chen, Bolingbrook, IL (US);
Pengfei MA, Naperville, IL (US);
Tonglin Shang, Bolingbrook, IL (US);
Lawrence J. Tognetti, Peoria, IL (US);
Jeffrey L. Kuehn, Metamora, IL (US);
Jiao Zhang, Naperville, IL (US);
Dayao Chen, Bolingbrook, IL (US);
Pengfei Ma, Naperville, IL (US);
Tonglin Shang, Bolingbrook, IL (US);
Lawrence J. Tognetti, Peoria, IL (US);
Jeffrey L. Kuehn, Metamora, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A swing energy recovery system for a machine is disclosed. The swing energy recovery system may have a pump configured to pressurize fluid, a motor driven by a flow of pressurized fluid from the pump, and an energy recovery arrangement configured to receive pressurized fluid discharged from the motor and selectively supply pressurized fluid to the motor. The swing energy recovery system may also have a pressure relief valve associated with the motor, and a controller in communication with the energy recovery arrangement and the pressure relief valve. The controller may be configured to selectively adjust a setting of the pressure relief valve based on an operating condition of the energy recovery arrangement.