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. 19, 2019
Filed:
Jun. 05, 2017
Caterpillar Inc., Peoria, IL (US);
Anthony Dean McNealy, Dunlap, IL (US);
Corey Lee Gorman, Peoria, IL (US);
Shogo Tada, Peoria, IL (US);
Rustin Glenn Metzger, Congerville, IL (US);
Hideki Nakajima, Peoria, IL (US);
Justin Douglas Speichinger, Edwards, IL (US);
Shinya Ohmura, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A kinetic energy recovery system (KERS) for a machine having a swing motor and/or an actuator includes a hydraulic motor/pump that can output pressurized fluid for operating at least one of: the swing motor and the actuator. A first shaft of the hydraulic motor/pump can be rotated by fluid returning from at least one of: the swing motor and the actuator back to the hydraulic motor/pump. Further, the KERS also includes a flywheel that can selectively couple with the first shaft with the help of a first clutch. The flywheel stores drive power generated by the hydraulic motor/pump from the return flow of fluid when the first clutch couples the flywheel with the first shaft of the hydraulic motor/pump. A gearing arrangement is coupled to the flywheel and can selectively engage with a second shaft associated with a prime mover of the machine with the help of a second clutch.